Entries |
Document | Title | Date |
20080220008 | Mutated Hiv Nef For Modulating Immunity - Described is the use of a mutation of at least one amino acid in the immunosuppressive domain of a HIV or SIV accessory protein, for modulating the immunosuppressive property of the protein. | 09-11-2008 |
20080267989 | Hiv Gp-41-Membrane Proximal Region Arrayed On Hepatitis B Surface Antigen Particles as Novel Antigens - Recombinant HBsAg-gp120 has been used to present approximately amino acids 1-500 gp120. However, this presentation of gp120 in this form has not successfully been used to produce neutralizing antibodies. The use of the immunogenic Hepatitis B surface antigen (HBsAg) particulate platform to array specific epitopes from the conserved, neutralization-sensitive membrane proximal region (MPR) of HIV-1, and the use of these monomeric fusion proteins, polymeric forms of these fusion proteins, and nucleic acids encoding these fusion proteins to induce an immune response to HIV-1 are disclosed. | 10-30-2008 |
20080279879 | INDUCTION OF BROADLY REACTIVE NEUTRALIZING ANTIBODIES BY FOCUSING THE IMMUNE RESPONSE ON V3 EPITOPES OF THE HIV-1 gp120 ENVELOPE - Compositions, kits and methods for boosting, or for priming and boosting, high titer broadly neutralizing cross-clade antibody responses focused on single HIV-1 neutralizing epitopes are disclosed. gp120 DNA plasmids comprising HIV env genes are used to prime the antibody response. Primed subjects are immunized with recombinant fusion proteins that comprise a “carrier” protein fusion partner, preferably a truncated form of the MuLV gp70 Env protein, and a desired HIV neutralizing epitopes. Preferred epitopes are epitopes of V3 from one or more HIV clades. Immune sera from such immunized subjects neutralized primary isolates from virus strains heterologous to those from which the immunogens were constructed. Neutralizing activity was primarily due to V3-specific antibodies and cross-clade neutralizing Abs were present. This approach results in more potent and broader neutralizing antibody levels, a result of “immunofocusing” the humoral immune response on neutralizing epitopes such as V3. | 11-13-2008 |
20090028890 | Immunogenic composition and method of developing a vaccine based on portions of the HIV matrix protein - The present invention relates to an immunogenic composition. More particularly, the present invention is a composition directed to eliciting an immune response to at least one covalent binding site of myristate (SEQ ID NOS: 1-3) on the HIV matrix protein. The present invention contemplates three categories of embodiments: protein or protein fragments (SEQ ID NO: 1), messenger RNA, or DNA/RNA (SEQ ID NOS:2-3). DNA/RNA compositions may be either naked or recombinant. The present invention further contemplates use with a variety of immune stimulants. | 01-29-2009 |
20090092628 | Conserved-element vaccines and methods for designing conserved-element vaccines - Embodiments of the present invention include conserved-element vaccines and methods for designing and producing conserved-element vaccines. A conserved-element vaccine (“CEVac”) is a recombinant and/or synthetic vaccine that incorporates only highly conserved epitopes from an observed set of pathogen variants. The conserved epitopes are identified computationally by aligning biopolymer sequences, such as concatenated polypeptide sequences that together represent a pathogen proteome, corresponding to an observed set of pathogen variants, and computationally selecting conserved subsequences according to a number of subsequence-selection criteria. These subsequence-selection criteria may include a minimum conserved-subsequence length, a threshold frequency of occurrence of a particular monomer at each conserved, single-monomer position within a conserved subsequence, a threshold combined occurrence for a set of allowable variant monomers at a particular conserved, variable position within a conserved subsequence, and a maximum number of variable positions within a subsequence. A set of conserved subsequences identified according to the subsequence-selection criteria are then filtered to remove subsequences identical to, or too similar to, naturally-occurring host subsequences, and are then assembled into expression vectors for incorporation into microbial hosts for biosynthesis of a recombinant CEVac or assembled into one or more synthetic constructs for a synthetic CEVac. | 04-09-2009 |
20090110690 | Hiv Gp120 Crystal Structure and Its Use to Identify Immunogens - The present disclosure relates to stabilized forms of the HIV gp120 envelope protein in complex with the broadly neutralizing CD4-binding site antibody b12, to crystalline forms of the stabilized forms of the HIV gp120 envelope protein in complex with the broadly neutralizing CD4-binding site antibody b12, and to the high resolution structure obtained from these crystals by X-ray diffraction methods. Methods for identifying immunogenic polypeptides based on these structures are also disclosed. | 04-30-2009 |
20090117141 | HIV VACCINE COMPOSITION - An anti-HIV vaccine composition is disclosed. The vaccine comprises an combination of immunogenic peptide mixtures, which mixtures may be prepared in a single synthesis. The composition collectively represents the in vivo variability seen in immunogenic epitopes from highly variable regions of HIV. Immunization with the vaccine elicits broadly reactive immunity (CTL and T helper cell responses) against the divergent strains of HIV upon which it is based. The vaccine may be formulated to target regionally distinct variability based on an HIV clade predominant in a geographical region. | 05-07-2009 |
20090136533 | POLYPEPTIDE DERIVED FROM gp41, A VACCINE COMPOSITION COMPRISING SAID POLYPEPTIDE, AND USES FOR TREATING AN INFECTION BY AN HIV VIRUS IN AN INDIVIDUAL - The present invention relates to the field of the in vitro diagnosis of the progression status of an infection of an individual with a virus belonging to the family of the Human Immunodeficiency Viruses (HIV) as well as with the therapeutical treatment of this infectious disease. The invention also relates to immunological compounds and vaccine compositions comprising a polypeptide derived from gp41. | 05-28-2009 |
20090162390 | Molecular Scaffolds for HIV-1 Immunogens - Methods and compositions are provided which employ chimeric polypeptides having at least one heterologous epitope for a human immunodeficiency virus type 1 (HIV-1) neutralizing antibody. These chimeric polypeptides behave as molecular scaffolds which are capable of presenting the various heterologous HIV-1 epitopes. The invention demonstrates that a heterologous epitope recognized by the HIV-1 neutralizing antibody can be more fully exposed to neutralizing antibodies when presented within the backbone of the chimeric polypeptide than when the epitope is presented within the context of an HIV-1 backbone. Polynucleotides encoding these chimeric polypeptides are also provided. Immunogenic compositions are provided which comprise a chimeric polypeptide having at least one heterologous epitope that interacts with an HIV-1 neutralizing antibody. Immuno genie compositions comprising chimeric polynucleotides encoding the chimeric polypeptides of the invention are also provided. Vaccines comprising such immunogenic compositions are also provided. Further provided are methods which employ the immunogenic compositions of the invention. Such methods include, for example, methods for eliciting an immune response in a subject, methods for generating antibodies specific for the chimeric polypeptide or the chimeric polypeptide, and methods for inhibiting or preventing infection by HIV-1 in a subject. | 06-25-2009 |
20090181045 | TAT-BASED VACCINE COMPOSITIONS AND METHODS OF MAKING AND USING SAME - A Tat-based vaccine composition comprising at least one antigen coupled to at least one immunostimulatory lentivirus trans-activator of transcription (Tat) molecule wherein the antigen is a cancer antigen an infectious disease antigen or a fragment thereof and methods to treat disease by administering the Tat-based vaccine composition. An additional Tat-based vaccine composition comprising immunostimulatory lentivirus Tat is provided. | 07-16-2009 |
20090191235 | CONFORMATIONALLY STABILIZED HIV ENVELOPE IMMUNOGENS AND TRIGGERING HIV-1 ENVELOPE TO REVEAL CRYPTIC V3-LOOP EPITOPES - Stabilized forms of gp120 polypeptide, nucleic acids encoding these stabilized forms, vectors comprising these nucleic acids, and methods of using these polypeptides, nucleic acids, vectors and host cells are disclosed. Crystal structures and computer systems including atomic coordinates for stabilized forms of gp120, and gp120 with an extended V3 loop, and methods of using these structures and computer systems are also disclosed. | 07-30-2009 |
20090214583 | Epitope-enhancement of a human cd4 hiv epitope - Virus-specific CD4 | 08-27-2009 |
20090220536 | HIV vaccine immunogens and immunization strategies to elicit broadly-neutralizing anti-HIV-1 antibodies against the membrane proximal domain of HIV GP41 - This invention relates to novel peptide immunogens that generate an immune response in mammals against HIV gp41, to pharmaceutical compositions that comprise such immunogens, and to methods of treating Immunodeficiency disease, especially HIV infection and AIDS, that employ such pharmaceutical compositions. | 09-03-2009 |
20090220537 | VACCINE DELIVERY SYSTEM - An isolated protein comprising a hepatitis B surface antigen (HBsAg) amino acid sequence, and encoding nucleic acid, are provided wherein one or more immunogenic T cell epitopes of the HBsAg are respectively substituted with one of more immunogenic T cell epitopes of a protein other than HBsAg. Typically, the T cell epitopes are of a pathogen or tumour protein. The isolated protein may have endogenous HBsAg epitopes substituted with multiple copies of the same epitope or with different HBsAg epitopes. B cell epitopes may also be present. Also provided are expression constructs, VLPs, compositions, vaccines and methods of treatment that may be useful in the prophylactic and/or therapeutic treatment of diseases including human papillomavirus, respiratory syncytial virus, human immunodeficiency virus (HIV), cytomegalovirus (CMV), Epstein Barr virus (EBV), rotavirus, hepatitis B virus, parainfluenza virus, hepatitis C virus, | 09-03-2009 |
20090238841 | HIV VACCINE FORMULATIONS - Provided herein are HIV vaccines comprising HIV polypeptide-encoding DNA adsorbed to PLG and/or HIV proteins. Also provided are methods of using these vaccines to generate immune responses in a subject. | 09-24-2009 |
20090246217 | Novel Peptides for Treating and Preventing Immune-Related Disorders, Including Treating and Preventing Infection by Modulating Innate Immunity - In one aspect, the present invention provides isolated novel peptides that can be used to modulate innate immunity in a subject, and/or for the treatment of an immune-related disorder, including treating and preventing infection by modulating innate immunity. Also provided are an agent reactive with this peptide, a pharmaceutical composition that includes the peptide, an isolated nucleic acid molecule encoding the peptide, a recombinant nucleic acid construct that includes the nucleic acid molecule, at least one host cell comprising the recombinant nucleic acid construct, and a method of producing the peptide using the host cell. The present invention further provides a method for treating and/or preventing infection in a subject by administering the peptide of the invention to the subject, thereby modulating innate immunity in the subject. Additionally, the present invention provides a method for predicting whether a subject would be responsive to treatment with a peptide of the invention. | 10-01-2009 |
20090252754 | Vaccines containing the hiv tat protein as an adjuvant for the enhancement of cytotoxic t-cell responses - Tat, when used in a vaccine, causes MHC-I to expose subdominant epitopes present within an antigen, thereby enabling an optimal immune response to be generated, within an individual, against the antigen and variants of the antigen, such as might be encountered with HIV or influenza viruses. | 10-08-2009 |
20090317418 | VACCINES AND METHODS FOR PREVENTION AND TREATMENT OF DRUG-RESISTANT HIV-1 AND HEPATITIS B VIRUS - The present invention provides methods for lowering a viral load of a virus resistant to an antiviral drug by inducing cytotoxic T lymphocytes (CTL) to recognize a predetermined mutated epitope within a viral protein of the drug-resistant virus. CTLs are induced by immunizing a host with a peptide comprising the predetermined mutation. The immunostimulating peptide may be further improved by epitope-enhancement for inducing specific CTLs. The antiviral protection against drug-resistant virus shown by compositions of the present invention and mediated by human HLA-restricted CTL has not been previously achieved. | 12-24-2009 |
20090317419 | Tetramers - The present invention relates, in general to human immunodeficiency virus (HIV), and, in particular, to B cell tetramers and to methods of using same for diagnosis, disease monitoring and vaccine development. | 12-24-2009 |
20090324631 | Polyvalent Vaccine - The present invention relates, in general, to an immunogenic composition (e.g., a vaccine) and, in particular, to a polyvalent immunogenic composition, such as a polyvalent HIV vaccine, and to methods of using same. The invention further relates to methods that use a genetic algorithm to create sets of polyvalent antigens suitable for use, for example, in vaccination strategies. | 12-31-2009 |
20090324632 | Methods and reagents for vaccination which generate a CD8 T cell immune response - New methods and reagents for vaccination are described which generate a CD8 T cell immune response against malarial and other antigens such as viral and tumour antigens. Novel vaccination regimes are described which employ a priming composition and a boosting composition, the boosting composition comprising a non-replicating or replication-impaired pox virus vector carrying at least one CD8 T cell epitope which is also present in the priming composition. | 12-31-2009 |
20100080818 | Expression and Characterization of HIV-1 Envelope Protein Associated with Broadly Cross Reactive Neutralizing Antibody Response - The present invention relates to HIV-1 envelope proteins from a donor with non-progressive HIV-1 infection whose serum contains broadly cross-reactive, primary virus neutralizing antibody. The invention also relates to isolated or purified proteins and protein fragments that share certain amino acids at particular positions with the foregoing HIV-1 proteins. | 04-01-2010 |
20100092502 | MODIFIED HIV ENV POLYPEPTIDES - Polynucleotide encoding modified HIV Env polypeptides are disclosed. The Env polypeptides are modified so as to expose at least part of the CD4 binding region. Methods of diagnosis, treatment and prevention using the polynucleotides and polypeptides are also provided. | 04-15-2010 |
20100119538 | CHIMERIC OSTEOGENIC FACTOR CONTAINING PROTEINS CAPABLE OF INCREASED NUCLEAR LOCALIZATION AND METHODS OF USE THEREOF - Compositions comprising osteogenic factors fused with membrane transduction domains of viral proteins are provided. Also provided are methods of expression and use of such compositions. Further, the methods of making such compositions are also provided. The methods involve transfecting the cells with an isolated nucleic acid comprising a nucleotide sequence encoding a LIM mineralization protein operably linked to a promoter and optionally a membrane transduction domain of a viral protein. Transfection may be accomplished ex vivo or in vivo by direct injection of virus or naked DNA, or by a nonviral vector such as a plasmid. Methods for treating disc disease associated with trauma or disc degeneration are also described. | 05-13-2010 |
20100183651 | Broadly Representative Antigen Sequences and Method for Selection - A novel method for generating vaccine sequences is disclosed herein that preserves contiguous epitope length stretches of amino acids or nucleotides from an input pool of sequences. The method generates continuous, stepwise epitope consensus that together provides for a single globally optimized sequence. The end sequences are designed to maximize overlap between any potential epitope length sequence extract from a natural antigen sequence. The disclosed method, thus, allows one to maximize the number of potential natural epitopes that are mimicked in a resultant vaccine sequence. Various representative HIV vaccine sequences have been generated and are disclosed herein. | 07-22-2010 |
20100215681 | FUSION PROTEINS COMPRISING HIV-1 TAT AND/OR NEF PROTEINS - The invention provides (a) an HIV Tat protein or derivative thereof linked to either (i) a fusion partner or (ii) an HIV Nef protein or derivative thereof; or (b) an HIV Nef protein or derivative thereof linked to either (i) a fusion partner or (ii) an HIV Tat protein or derivative thereof; or (c) an HIV Nef protein or derivative thereof linked to an HIV Tat protein or derivative thereof and a fusion partner. The invention further provides for a nucleic acid encoding such a protein and a host cell, such as | 08-26-2010 |
20100278853 | CONSTRAINED HIV V3 LOOP PEPTIDES AS NOVEL IMMUNOGENS AND RECEPTOR ANTAGONISTS - The present invention provides constrained peptides and other organic molecules, that mimic the three dimensional characteristics of the HIV-1 V3 loop peptide when bound by a highly potent human neutralizing monoclonal antibody specific for a V3 conformational epitope, which structure is determined by NMR. Methods for screening for, and designing such molecules are disclosed. These molecules are useful as immunogens for inducing broadly-neutralizing antibodies against HIV-1 as well as antagonists for inhibiting the binding of HIV-1 to the relevant co-receptors, and may therefore be used in method of preventing or treating HIV-1 infection and disease. | 11-04-2010 |
20100303848 | VACCINATION METHOD - The present invention relates, in general, to human immunodeficiency virus (HIV) and, in particular, to methods of effecting local and systemic immunization against HIV while protecting cells (e.g., mucosal dendritic and epithelial cells) from viral challenge. The invention further relates to compounds (e.g., nucleic acids encoding polypeptides that can elicit an immune response and/or protect cells against viral challenge) and compositions suitable for use in such methods. | 12-02-2010 |
20100322954 | ENHANCED HIV-1 VACCINES AND METHODS FOR THEIR USE - The present invention provides peptides and proteins for use in second generation HIV vaccines and as diagnostic tools in the treatment and control of HIV infection. The antiviral protection shown by compositions of the present invention has not been previously achieved with an HLA epitope-enhanced vaccine. These findings define a critical balance between MHC affinity and receptor crossreactivity required for effective epitope enhancement and also demonstrate construction and efficacy of such a component of a new generation vaccine. | 12-23-2010 |
20110014222 | Stereoisomer Peptides and Their Polymer Conjugates for HIV Disease - The invention relates to a library of 298 peptides useful for formulating a novel therapeutic HIV vaccine. The peptide sequences were selected on the basis of calibration of molecular structure properties of HIV-1 or host cell proteins. A mixture of D- and L-amino acids or all D-amino acids are used to synthesize the stereoisomer peptides for the purpose of increasing their stability. The peptides are expected to have the ability to potently inhibit functioning of proteins important for HIV infection. A plural of the peptides are conjugated together with a biocompatible polymer, preferably HPMA to further increase stability and solubility, decrease drug toxicity, and potentially evade multidrug resistance and exert cooperative effect, since some peptides are the ligands for host proteins such as integrin, trombospondin, VEGFR and LEDGF which can bring the therapeutic peptides to the target cells and therefore help disrupt the interactions between the host proteins and the HIV proteins. | 01-20-2011 |
20110064760 | POLYPEPTIDES COMPRISING EPITOPES OF HIV GP41 AND METHODS OF USE - An isolated polypeptide that has an amino acid sequence that is substantially homologous to consecutive amino acids of a c-terminal portion of the membrane proximal external region (MPER) of gp41 includes an immunogenic epitope reactive with at least one anti-HIV antibody. | 03-17-2011 |
20110076298 | Soluble stabilized trimeric hiv env proteins and uses thereof - This invention provides a protein comprising (a) a first polypeptide which comprises consecutive amino acids, the sequence of which corresponds to the sequence of a modified gp120 envelope polypeptide portion of a gp140 envelope of (i) an HIV-I KNH1144 isolate, or a quasi-species thereof, or (ii) an HIV-I 5768.4 isolate, or a quasi-species thereof; and (b) a second polypeptide which comprises consecutive amino acids, the sequence of which corresponds to the sequence of a modified gp41 ectodomain polypeptide portion of the gp140 envelope of (i) the HIV-I KNH1144 isolate or such quasi-species thereof, or (ii) the HIV-I 5768.4 isolate or such quasi-species thereof. This invention also provides nucleic acids encoding such proteins, vectors, host cells and compositions thereof. Also provided are trimeric complexes (‘trimers’) of these proteins and methods of using such trimers to combat HIV-I infection. | 03-31-2011 |
20110142869 | MEMBRANE PROXIMAL REGION OF HIV GP41 ANCHORED TO THE LIPID LAYER OF A VIRUS-LIKE PARTICLE VACCINE - Disclosed herein are isolated immunogens including variant hepatitis B surface antigens (HBsAgs). In an example, a variant HBsAg includes a HBsAg with one or more transmembrane domains of the HBsAg replaced with a gp41 antigenic insert. The antigenic insert can include an antigenic polypeptide fragment of gp41 including the membrane proximal region of gp41 and a transmembrane membrane region of gp41. The replacement of a membrane spanning domain of HBsAg with a membrane spanning domain of gp41 anchors gp41 into HBsAg in virtually the identical orientation as on HIV virions and correctly orients the nearby MPR on the lipid layer. Thus, the disclosed variant HBsAgs display the neutralization-sensitive MPR in association with a lipid layer, while presenting it at the most immunogenic site on HBsAg. Also disclosed are uses of these variant HBsAgs, and nucleic acids encoding variant HBsAgs, such as to induce an immune response to HIV-1. | 06-16-2011 |
20110150915 | POLYVALENT VACCINE - The present invention relates, in general, to an immunogenic composition (e.g., a vaccine) and, in particular, to a polyvalent immunogenic composition, such as a polyvalent HIV vaccine, and to methods of using same. The invention further relates to methods that use a genetic algorithm to create sets of polyvalent antigens suitable for use, for example, in vaccination strategies. | 06-23-2011 |
20110159025 | Methods, agents and peptides for inducing an innate immune response in HIV vaccination - The present invention relates to enhancing, modulating or stimulating the innate immune response to HIV-1 and other viral pathogens and to the modulation and application of immune modulators and peptides for HIV-1 or other pathogen vaccines. The invention provides methods and means to activate an innate response to HIV-1 utilizing or via the HIV capsid protein or peptide, including modulating the binding of cyclophilin A to HIV capsid protein and modulating the ability of HIV to activate the major innate transcription factor IRF3 and interferon. Methods and assays are provided for screening for compounds, agents, or peptides capable of enhancing or activating innate immune response, particularly to HIV-1. | 06-30-2011 |
20110189216 | Compositions and Methods for the Treatment and Prophylaxis of Multiple Strains and Subtypes of HIV-1 - A self-adjuvanting immunogenic composition comprising multiple immunogens, each immunogen comprising a lipopeptide cap, a universal T helper sequence and an immunodominant HIV-1 Tat B cell epitope. The immunogen also comprises one or more linker sequences and/or polar charged amino acid sequences. The HIV-1 Tat B cell epitope of each immunogen has an amino acid sequence of V-D-P-Xaa7-L-Xaa9-P-W-Xaa12-Xaa13-Xaa14-Xaa15-Xaa16-amide SEQ ID NO: 1, in which the amino acid positions at Xaa7, Xaa9 and Xaa12 are selected from specific amino acid residues choices and in which the amino acid positions at Xaa13-Xaa16 may be absent or specific amino acid residue choices. The lipopeptide is a dipalmitoyl-S-glyceryl-cysteine or a tripalmitoyl-S-glyceryl cysteine or N-acetyl (dipalmitoyl-S-glyceryl cysteine), each with an optional neutral amino acid linker. Optional polar sequences of at least four charged polar amino acids enhance solubility of the immunogen and are located at the carboxy terminal end of the lipopeptide cap, optionally flanked by neutral linker amino acids, or elsewhere in the immunogen. In the composition, each immunogen differs from another immunogen by an amino acid variation at amino acid position Xaa7, Xaa9 or Xaa12 of the immunodominant HIV-1 Tat epitope. Such compositions can induce anti-HIV-1 Tat antibodies with geometric mean titers of greater than 1,000,000 on multiple HIV-1 Tat variants, when employed to immunize a subject, without any extrinsic adjuvant. | 08-04-2011 |
20110212118 | TAT Protein for preventing or treating AIDS - The invention relates to a method of preventing or treating acquired immunodeficiency syndrome (AIDS) in a patient, wherein the patient is administered with a Tat protein comprising amino acid sequence SEQ ID NO: 1 or 2, or a variant thereof capable of stimulating an immune response against Tat proteins. | 09-01-2011 |
20110212119 | METHODS FOR MAKING HIV VACCINES AND RELATED COMPOSITIONS - Provided herein are methods and kits for making a targeted therapeutic for prevent and treating HIV infection. In one of these methods, the method includes preparing a library of soluble peptides, and screening the library for proteins that bind to the region of CD4 that binds gp120. In this particular method, these proteins are used as the antigen to make the HIV vaccine. | 09-01-2011 |
20110236409 | OVERLAPPING PEPTIDES FROM VARIABLE ANTIGENS, T CELL POPULATIONS AND USES THEREOF - The present invention relates to set overlapping immunogenic peptides of a variable antigen, and uses thereof, in particular for diagnostic and therapeutic purposes. The present invention relates also to a sub-population of CD8 T cells associated with the non-progressive status in HIV-infected subjects. | 09-29-2011 |
20110250220 | MODIFIED GP140 ENVELOPE POLYPEPTIDES OF HIV-1 ISOLATES, COMPOSITIONS, STABILIZED TRIMERIC COMPLEXES, AND USES THEREOF - This invention provides a modified gp140 envelope polypeptide of an HIV-1 isolate comprising a gp120 polypeptide portion comprising consecutive amino acids and a gp41 ectodomain polypeptide portion comprising consecutive amino acids, said gp41 ectodomain polypeptide portion being modified to comprise isoleucine (I) at an amino acid position equivalent to amino acid position 535; glutamine (Q) at an amino acid position equivalent to amino acid position 543; serine (S) at an amino acid position equivalent to amino acid position 553; lysine (K) at an amino acid position equivalent to amino acid position 567; and arginine (R) at an amino acid position equivalent to amino acid position 588, the amino acid positions being numbered by reference to the HIV-1 isolate KNH1144. This invention also provides nucleic acids encoding such a polypeptide, vectors, host cells, trimeric complexes and compositions thereof. Also provided are antibodies generated against the modified polypeptides and trimeric complexes, and methods of using the modified polypeptides, compositions and trimeric complexes. | 10-13-2011 |
20110262474 | Chimeric HIV Antigens - The invention provides polynucleotides and polypeptides encoded therefrom that are capable of inducing immune responses to a human immunodeficiency virus. Compositions and methods for utilizing polynucleotides and polypeptides of the invention are also provided. | 10-27-2011 |
20110287045 | Enhanced immune response against infections - The present invention relates to the discovery that Tat polypeptides may be used as immunoregulators to enhance the immune response to infectious diseases. More particularly, Tat polypeptides may be used as immunoregulators to enhance immune responses to microbial infections, for example, viral and bacterial infections. In accordance with the present invention, Tat polypeptides interact with CCR3 to stimulate platelet activation. The novel finding of the present inventors, therefore, presents new applications for which Tat nucleic and amino acid sequences, and compositions thereof may be used to advantage. Applications for which the Tat nucleic and amino acid sequences and compositions thereof of the invention may be used include, but are not limited to, various research and therapeutic applications as described herein. Also provided is a kit comprising Tat nucleic and/or amino acid sequences, Tat activity compatible buffers, and instruction materials. | 11-24-2011 |
20110311569 | HIV-1 Peptides, Nucleic Acids, and Compositions and Uses Thereof - This invention features polypeptides, variants thereof, and fragments thereof useful in eliciting an immune response (e.g., neutralizing antibodies) against abroad spectrum of HIV-I isolates. The polypeptides, variants, and fragments include a portion of the gp120 V2 domain of HIV-I. The polypeptides, variants, and fragments display an epitope that is recognized by at least one antibody which neutralizes at least one HIV-I primary isolate. This invention also features nucleic acid sequences encoding those polypeptides. In addition, the invention provides methods of screening for inhibitors of HIV-I entry into cells, as well as methods of treatment using the inhibitors. | 12-22-2011 |
20110318377 | Methylated TAT Polypeptides and Methods of Use Thereof - The present invention provides isolated methylated Tat peptides; and compositions comprising the peptides. The present invention further provides isolated antibodies specific for a Lys-51-methylated Tat polypeptide. Also provided are methods of identifying agents that inhibit Lys-51 methylation of a Tat polypeptide. The present invention further provides methods of treating an immunodeficiency virus infection in a mammalian subject. | 12-29-2011 |
20120027791 | ANTISENSE COMPOUND FOR INDUCING IMMUNOLOGICAL TOLERANCE - A method and conjugate for selectively killing antigen-activated T cells are disclosed. The conjugate is composed of a substantially uncharged antisense compound targeted against the human cFLIP protein, and a reverse TAT (rTAT) polypeptide coupled covalently to the antisense compound. The rTAT polypeptide is effective to produce selective uptake of the conjugate into antigen-activated T cells, relative to the uptake of the conjugate into non-activated T cells. The cFLIP antisense compound causes activation induced cell death (AICD) of activated lymphocytes. The method is useful in treating transplantation rejection and autoimmune conditions. | 02-02-2012 |
20120027792 | EXPRESSION VECTORS ABLE TO ELICIT IMPROVED IMMUNE RESPONSE AND METHODS OF USING SAME - The invention relates to nucleic acids (such as DNA immunization plasmids), encoding fusion proteins containing a destabilizing amino acid sequence attached to an amino acid sequence of interest, in which the immunogenicity of the amino acid sequence of interest is increased by the presence of the destabilizing amino acid sequence. The invention also relates to nucleic acids encoding secreted fusion proteins, such as those containing chemokines or cytokines, and an attached amino acid sequence of interest, in which the immunogenicity of the amino acid sequence of interest is increased as a result of being attached to the secretory sequence. The invention also relates methods of increasing the immunogenicity of the encoded proteins for use as vaccines or in gene therapy. | 02-02-2012 |
20120034254 | ANTIGENIC CLOAKING AND ITS USE - Disclosed are antigens that include a target epitope that is defined by atomic coordinates of those amino acids of the antigen that contact an antibody of interest that specifically binds the antigen. The disclosed antigens have between about 10% and about 90% of surface exposed amino acid residues located exterior of the target epitope substituted as compared to a wild-type antigen and less than about 10% of the non-surface exposed amino acid residues substituted as compared to a wild-type antigen. Also disclosed are nucleic acids encoding these antigens and methods of producing these antigens. Methods for generating an immune response in a subject are also disclosed. In some embodiments, the method is a method for treating or preventing a human immunodeficiency type 1 (HIV-1) infection in a subject. | 02-09-2012 |
20120034255 | CONFORMATIONALLY STABILIZED HIV ENVELOPE IMMUNOGENS - Stabilized forms of gp120 polypeptide, nucleic acids encoding these stabilized forms, vectors comprising these nucleic acids, and methods of using these polypeptides, nucleic acids, vectors and host cells are disclosed. Crystal structures and computer systems including atomic coordinates for stabilized forms of gp120, and gp120 with an extended V3 loop, and methods of using these structures and computer systems are also disclosed. | 02-09-2012 |
20120039923 | Modified HIV-1 Envelope Proteins - The present invention relates to modified HIV-1 envelope proteins where one or more N-glycosylation sites have been deleted or modified, which produce a broadly cross reactive neutralizing response, their methods of use and antibodies which bind to these proteins. The invention also provides for nucleic acids, vectors, antibodies and pharmaceutical compositions that comprise said modified HIV-1 envelope proteins. | 02-16-2012 |
20120058137 | EFFICIENT TRANSPORT INTO WHITE BLOOD CELLS - The present invention relates to the use of specific transporter cargo conjugate molecules for the transport of a substance of interest (cargo molecule) into white blood cells. Said transporter cargo conjugate molecules may be used for the treatment, prophylaxis, attenuation and/or amelioration of a disease and/or disorder involving white blood cells. The present invention also relates to manufacture of said transporter cargo conjugate molecules, to a method of transporting a substance of interest (cargo) into a white blood cell and to a white blood cell comprising said transporter cargo conjugate molecules or fragments thereof. | 03-08-2012 |
20120076812 | ANTIVIRAL VACCINES WITH IMPROVED CELLULAR IMMUNOGENICITY - The invention provides compositions, methods, and kits for the treatment or prevention of viral infections. The polyvalent (e.g., 2-valent) vaccines described herein incorporate computationally-optimized viral polypeptides that can increase the diversity or breadth and depth of cellular immune response in vaccinated subjects. | 03-29-2012 |
20120087938 | Consensus/ancestral immunogens - The present invention relates, in general, to an immunogen and, in particular, to an immunogen for inducing antibodies that neutralizes a wide spectrum of HIV primary isolates and/or to an immunogen that induces a T cell immune response. The invention also relates to a method of inducing anti-HIV antibodies, and/or to a method of inducing a T cell immune response, using such an immunogen. The invention further relates to nucleic acid sequences encoding the present immunogens. | 04-12-2012 |
20120121631 | POLYVALENT VACCINE - The present invention relates, in general, to an immunogenic composition (e.g., a vaccine) and, in particular, to a polyvalent immunogenic composition, such as a polyvalent HIV vaccine, and to methods of using same. The invention further relates to methods that use a genetic algorithm to create sets of polyvalent antigens suitable for use, for example, in vaccination strategies. | 05-17-2012 |
20120121632 | TAT Protein for preventing or treating AIDS - The invention relates to a method of preventing or treating acquired immunodeficiency syndrome (AIDS) in a patient, wherein the patient is administered with a Tat protein comprising amino acid sequence SEQ ID NO: 1 or 2, or a variant thereof capable of stimulating an immune response against Tat proteins. | 05-17-2012 |
20120121633 | HIV CD4 BINDING SITE BASED COVALENT IMMUNOGEN COMPOSITIONS - Provided are immunogenic compositions based on the highly conserved, core CD4 binding site of the gp120 protein of the human immunodeficiency virus. One embodiment includes an antigenic conjugate of an electophilic derivative of HIV gp120 peptide 416-433, designated E-416-433, covalently linked to an immunogenic carrier protein. The compositions are effective in stimulating the production of HIV neutralizing antibodies in mammals. Provided also are related methods of immunization, methods of antibody production and antibodies obtained using the methods of the invention. | 05-17-2012 |
20120121634 | SOLUBLE PD-1 VARIANTS, FUSION CONSTRUCTS, AND USES THEREOF - The subject invention provides novel soluble PD-1 (sPD-1) proteins, nucleic acids, and fusion constructs thereof, for enhancing humoral and cell-mediated immunity of a subject. Also provided are therapeutic compositions comprising the sPD-1 proteins, nucleic acids, and fusion constructs of the subject invention. In a preferred embodiment, the therapeutic composition is formulated as a vaccine composition. Advantageously, the sPD-1 proteins, nucleic acids, and therapeutic compositions provide protective immunity against pathogenic infection including HIV infection. In additon, the subject invention can be used in the prevention and/or treatment of tumor or cancer. | 05-17-2012 |
20120121635 | Expression in plants of HIV-related proteins - Plants are engineered to express HIV related surface protein genes. The plants can be used as a source of the protein for a variety of purposes. Plant tissue can be orally administered to animals to elicit an immune response or provide protection from viral infection. The protein can be extracted and delivered to animals. Plant produced proteins can also provide a less expensive and more readily available source of the protein as reagents or in other experimentation involving HIV and SIV proteins. | 05-17-2012 |
20120121636 | Tat-Based Vaccine Compositions and Methods of Making and Using Same - A Tat-based vaccine composition comprising at least one antigen coupled to at least one immunostimulatory lentivirus trans-activator of transcription (Tat) molecule wherein the antigen is a cancer antigen an infectious disease antigen or a fragment thereof and methods to treat disease by administering the Tat-based vaccine composition. An additional Tat-based vaccine composition comprising immunostimulatory lentivirus Tat is provided. | 05-17-2012 |
20120177677 | ANTIGEN SPECIFIC MULTI EPITOPE-BASED ANTI-INFECTIVE VACCINES - Provided are peptide vaccines including the signal peptide domain of selected target antigens of intracellular pathogens. The peptide vaccines of the invention contain multiple class II and class I-restricted epitopes and are recognized and presented by the majority of the vaccinated human population. Further provided, in particular, are anti tuberculosis vaccines. Also further provided are compositions including the vaccines as well as their use to treat or prevent infection. | 07-12-2012 |
20120213811 | CHIMERIC HIV FUSION PROTEINS AS VACCINES - A method for treating HIV infection is disclosed. The method comprises administering to a patient in need thereof a therapeutically effective amount of a fusion protein comprising: a) a | 08-23-2012 |
20120219577 | HIV-1 CLADE A CONSENSUS SEQUENCES, ANTIGENS, AND TRANSGENES - The present invention relates to consensus nucleotide and protein sequences for HIV-1 Clade A antigens, and to nucleotide and protein sequences for Clade A antigens from circulating HIV-1 field isolates wherein the antigen sequences are closely related to the these consensus sequences. Advantageously, the present invention relates to HIV-1 Clade A transgenes that are derived from such sequences, and that encode either HIV-1 Clade A Gag, Pol (RT and Int), and Nef (collectively “GRIN”), HIV-1 Clade A Gag, RT, and Nef (collectively “GRN”), or HIV-1 Clade A Env. The invention also relates to vectors containing such transgenes, including adenovirus vectors containing such transgenes. The invention also relates to immunogenic compositions comprising the HIV-1 Clade A antigens, nucleotide sequences, vectors, or transgenes of the invention, and to methods of generating an immune response against HIV in a subject by administering an effective amount of such immunogenic compositions. | 08-30-2012 |
20120231028 | POLYVALENT VACCINE - The present invention relates, in general, to an immunogenic composition (e.g., a vaccine) and, in particular, to a polyvalent immunogenic composition, such as a polyvalent HIV vaccine, and to methods of using same. The invention further relates to methods that use a genetic algorithm to create sets of polyvalent antigens suitable for use, for example, in vaccination strategies. | 09-13-2012 |
20120269840 | EXPRESSION OF HIV POLYPEPTIDES AND PRODUCTION OF VIRUS-LIKE PARTICLES - The present invention relates to the efficient expression of HIV polypeptides in a variety of cell types, including, but not limited to, mammalian, insect, and plant cells. Synthetic expression cassettes encoding the HIV Gag-containing polypeptides are described, as are uses of the expression cassettes in applications including DNA immunization, generation of packaging cell lines, and production of Env-, tat- or Gag-containing proteins. The invention provides methods of producing Virus-Like Particles (VLPs), as well as, uses of the VLPs including, but not limited to, vehicles for the presentation of antigens and stimulation of immune response in subjects to whom the VLPs are administered. | 10-25-2012 |
20120276128 | HIV Envelope-CD4 Complexes and Hybrids - Env-CD4 polypeptide complexes and hybrids that expose cryptic epitopes important in virus neutralization are disclosed. Methods of diagnosis, treatment and prevention using the polypeptides are also provided. | 11-01-2012 |
20120308593 | Immunological Compositions for HIV - The disclosure relates to immunological compositions for vaccinating human beings against infection by the Human Immunodeficiency Virus (HIV). | 12-06-2012 |
20120321655 | LENTIVIRUS VACCINE BASED ON THE RECOMBINANT VIRAL VACCINE AGAINST YELLOW FEVER - The present invention relates to an attenuated, recombinant viral vaccine against yellow fever which expresses heterologous sequences of a lentivirus and is used as an immunisation agent to induce an immune response to lentivirus. | 12-20-2012 |
20120328641 | CONFORMATIONALLY STABILIZED HIV ENVELOPE IMMUNOGENS - Stabilized forms of gp120 polypeptide, nucleic acids encoding these stabilized forms, vectors comprising these nucleic acids, and methods of using these polypeptides, nucleic acids, vectors and host cells are disclosed. Crystal structures and computer systems including atomic coordinates for stabilized forms of gp120, and gp120 with an extended V3 loop, and methods of using these structures and computer systems are also disclosed. | 12-27-2012 |
20130004529 | VACCINES AND METHODS FOR USING THE SAME - Improved anti-HIV immunogens and nucleic acid molecules that encode them are disclosed. Immunogens disclosed include those having consensus sequences for HIV Subtype A Envelope protein, those having consensus sequences for HIV Subtype B Envelope protein, those having consensus sequences for HIV Subtype C Envelope protein, those having consensus sequences for HIV Subtype D Envelope protein, those having consensus sequences for HIV Subtype B consensus Nef-Rev protein, and those having consensus sequences form HIV Gag protein subtypes A, B, C and D. Improved anti-HPV immunogens and nucleic acid molecules that encode them; improved anti-HCV immunogens and nucleic acid molecules that encode them; improved hTERT immunogens and nucleic acid molecules that encode them; and improved anti-Influenza immunogens and nucleic acid molecules that encode them are disclosed as well methods of inducing an immune response in an individual against HIV, HPV, HCV, hTERT and Influenza are disclosed. | 01-03-2013 |
20130039937 | Peptide Sequences and Compositions - Provided is a polypeptide having no more than 100 amino acids, which polypeptide comprises one or more sequences having at least 60% homology with any of SEQ ID 1-4, or comprises two or more epitopes having 7 amino acids or more, each epitope having at least 60% homology with a sub-sequence of any of SEQ ID 1-4 that has the same length as the epitope: | 02-14-2013 |
20130071420 | YEAST-BASED VACCINES AS IMMUNOTHERAPY - Compositions and methods for treating and/or preventing a variety of diseases and conditions that are amenable to immunotherapy and, in one particular embodiment, compositions and methods for treating and/or preventing cancer in an animal are described. Specifically improvements related to the use of a yeast-based vaccine comprising a yeast vehicle and an antigen that is selected to elicit an antigen-specific cellular and humoral immune response in an animal, for use in prophylactic and/or therapeutic vaccination and the prevention and/or treatment of a variety of diseases and conditions are disclosed. | 03-21-2013 |
20130095131 | Vaccine and Therapeutic Delivery System - The present invention relates to a new vaccine delivery system. In particular, the present invention includes compositions and methods of integrally transformed non-pathogenic, commensal bacteria that can express a nucleic acid molecule of a foreign polypeptide, wherein the nucleic acid molecule that encodes the foreign polypeptide is stably integrated into genomic DNA of the bacteria. The foreign polypeptide includes a vaccine antigen that elicits an immunogenic response, an inhibitor of a pathogen, or an immune booster or modulator. | 04-18-2013 |
20130156801 | COMPOSITIONS AND METHODS FOR EXOSOME TARGETED EXPRESSION - The present application relates to methods of producing exosomes. The application also provides a method for preparing a protein composition comprising culturing an exosome-producing cell expressing a Nef-fusion protein comprising a Nef-derived peptide fused to a protein of interest; isolating exosomes from the exosome-producing cell culture; and purifying the protein of interest from the isolated exosomes. The application further discloses compositions that comprise exosomes containing the Nef-fusion protein, as well as methods of using the Nef-fusion protein and exosomes containing the Nef-fusion protein. | 06-20-2013 |
20130164316 | GENETIC SIGNATURES IN HIV-1 SUBTYPE C ENVELOPE GLYCOPROTEINS - The present invention relates, in general, to HIV-1 and, in particular, to immunogens that elicit broadly neutralizing antibodies against HIV-1 subtype C envelope glycoproteins, and compositions comprising same. The invention further relates to methods of inducing the production of such antibodies in a subject. | 06-27-2013 |
20130177583 | MOLECULAR CLONE OF HIV-1 - The present invention relates, in general, to HIV-1 and, in particular, to a molecular clone of HIV-1. The invention further relates to methods of inducing an immune response to HIV-1 in a patient and to immunogens suitable for use in such methods. The invention also relates to anti-HIV-1 antibodies and to methods of using same to prevent or treat HIV-infection. | 07-11-2013 |
20130259887 | REOVIRUS VACCINES AND METHODS OF USE THEREFOR - The present invention provides for modified reoviruses that carry α-helical epitopes from a variety of pathogens, as well as methods of using such modified reoviruses to generate immune responses against those epitopes in hosts. | 10-03-2013 |
20130302364 | HIGHLY IMMUNOGENIC HIV P24 SEQUENCES - The invention relates to peptides comprising part or all of a conserved element within a Center-of-Tree (COT) sequence derived from a family of polypeptides encoded by naturally occurring variants of HIV. The invention also relates to immunogenic compositions and vaccines comprising said peptides. The invention also relates to methods for the identification of HIV controller patients based on the detection of the T cells of the patient to mount a cytotoxic T cell response against said peptides and to methods for the identification of immunogenic peptides within a family of variant polypeptides. | 11-14-2013 |
20130315945 | YEAST-BASED VACCINES AS IMMUNOTHERAPY - Compositions and methods for treating and/or preventing a variety of diseases and conditions that are amenable to immunotherapy and, in one particular embodiment, compositions and methods for treating and/or preventing cancer in an animal are described. Specifically improvements related to the use of a yeast-based vaccine comprising a yeast vehicle and an antigen that is selected to elicit an antigen-specific cellular and humoral immune response in an animal, for use in prophylactic and/or therapeutic vaccination and the prevention and/or treatment of a variety of diseases and conditions are disclosed. | 11-28-2013 |
20140037667 | RAPID SELECTION METHOD FOR HIV GP-120 VARIANTS - The invention relates to a method for rapid immunogen selection (RIS) based on the binding a library of recombinant viruses containing randomized HIV gp120 variants of a surface polypeptide displayed to said neutralizing antibodies. The invention relates as well to the use of the HIV gp120 immunogens isolated according to the RIS method of the invention in medicine for the treatment of diseases caused by a virus and in diagnosis for the identification of neutralizing antibodies in a patient. | 02-06-2014 |
20140056935 | PEPTIDE WHICH CAN INDUCE ANTIBODY CAPABLE OF RECOGNIZING STEREOSTRUCTURE OF HIV - An object of the present invention is to provide a peptide capable of inducing a superior or new neutralizing antibody against HIV, so that HIV infectious disease can be prevented and treated or a greater variety of preventive or therapeutic options can be offered. This object is achieved by using a peptide inducing an HIV's three-dimensional structure-recognizing antibody that recognizes a trimer region of C34, wherein three molecules of a derivative of a helical region C34 peptide at C-terminal region of transmembrane protein gp41 of an HIV particle are ligated via a C3-symmetric template compound having three equivalent linker structures. | 02-27-2014 |
20140093528 | DELETION OF THE BETA 20-21 LOOP IN HIV GP120 EXPOSES THE CD4 BINDING SITE FOR IMPROVED ANTIBODY BINDING AND ANTIBODY INDUCTION - Disclosed herein are isolated immunogens including variant gp120 polypeptides. In an example, a variant gp120 polypeptide includes a deletion of at least 8 consecutive residues of the fourth conserved loop (C4) between residues 419 and 434 of gp120 according to HXB2 numbering. Also provided are isolated nucleic acid molecules encoding the disclosed isolated immunogens. In an example, an isolated nucleic acid molecule further includes a nucleic acid molecule encoding a hepatitis B surface antigen or a variant thereof. Compositions including the isolated immunogens including variant gp120 polypeptides are also disclosed. In some examples, a composition further includes a carrier protein, such as a hepatitis B surface antigen or a variant thereof (natural or recombinant). Viral-like particles are also provided including any of the disclosed isolated immunogens or compositions. Also disclosed are uses of these variant gp120 polypeptides and nucleic acids encoding variant polypeptides, such as to induce an immune response to HIV-1. | 04-03-2014 |
20140154285 | FUSION PROTEINS FOR USE AS IMMUNOGENIC ENHANCERS FOR INDUCING ANTIGEN-SPECIFIC T CELL RESPONSES - A fusion protein for use as an immunogen enhancer for enhancing antigen-specific T cell responses is disclosed. The fusion protein comprises: (a) an antigen-presenting cell (APC)-binding domain or a CD91 receptor-binding domain; (b) a protein transduction domain; and (c) an antigen of a pathogen, wherein the APC-binding domain or the CD91 receptor-binding domain is located at the N-terminus of the fusion protein, and the antigen of the pathogen is located at the C-terminus of the protein transduction domain. The protein transduction domain is selected from the group consisting of: (i) a fusion polypeptide, comprising a T cell sensitizing signal-transducing peptide, a linker, and a translocation peptide; (ii) a T cell-sensitizing signal-transducing peptide; and (iii) a translocation peptide of 34-112 amino acid residues in length. | 06-05-2014 |
20140178422 | PRIMARY MESENCHYMAL STEM CELLS AS A VACCINE PLATFORM - Episomally transfected primary mesenchymal stem cells (MSC) express a polypeptide consisting of an antigenic polypeptide (e.g., one or more polypeptides) relating to a pathogen (e.g., one or more virus, bacterium, or parasite). The antigenic polypeptide can have the amino acid sequence of a natural polypeptide from the pathogen or an amino acid sequence differing from the natural sequence by one or more conservative amino acid substitutions. Uses and method for treating or preventing infections with episomally transfected primary MSC also are described. | 06-26-2014 |
20140186384 | VACCINES AND METHODS FOR USING THE SAME - Improved anti-HIV immunogens and nucleic acid molecules that encode them are disclosed. Immunogens disclosed include those having consensus sequences for HIV Subtype A Envelope protein, those having consensus sequences for HIV Subtype B Envelope protein, those having consensus sequences for HIV Subtype C Envelope protein, those having consensus sequences for HIV Subtype D Envelope protein, those having consensus sequences for HIV Subtype B consensus Nef-Rev protein, and those having consensus sequences form HIV Gag protein subtypes A, B, C and D. Improved anti-HPV immunogens and nucleic acid molecules that encode them; improved anti-HCV immunogens and nucleic acid molecules that encode them; improved hTERT immunogens and nucleic acid molecules that encode them; and improved anti-Influenza immunogens and nucleic acid molecules that encode them are disclosed as well methods of inducing an immune response in an individual against HIV, HPV, HCV, hTERT and Influenza are disclosed. | 07-03-2014 |
20140234361 | NOVEL EXPRESSION VECTORS AND USES THEREOF - A method for treating an HIV disease in a subject in need of said treatment, comprising administering to the subject a therapeutically effective amount of a DNA vaccine comprising an expression vector and a pharmaceutically acceptable excipient, where the expression vector comprises: (a) a heterologous promoter operatively linked to a DNA sequence encoding a nuclear-anchoring protein, where the nuclear-anchoring protein comprises: (i) a DNA binding domain which binds to a specific DNA binding sequence, and (ii) a functional domain of the Bovine Papilloma Virus Type 1 E2 protein, where the functional domain binds to a nuclear component; (b) a multimerized DNA sequence that forms a binding site for the nuclear anchoring protein; and (c) at least one expression cassette comprising a DNA sequence encoding a protein or peptide that stimulates an immune response specific to the protein or peptide; where the expression vector lacks an origin of replication functional in mammalian cells. | 08-21-2014 |
20140234362 | DEFENSIN-ANTIGEN FUSION PROTEINS - The present invention relates to a vaccine for increasing the immunogenicity of a tumor antigen thus allowing treatment of cancer, as well as a vaccine that increases the immunogenicity of a viral antigen, thus allowing treatment of viral infection, including immunodeficiency virus (HIV) infection. In particular, the present invention provides a fusion protein comprising a defensin fused to either a tumor antigen or viral antigen which is administered as either a protein or nucleic acid vaccine to elicit an immune response effective in treating cancer or effective in treating or preventing viral infection. | 08-21-2014 |
20140248301 | METHOD OF INDUCING THE PRODUCTION OF PROTECTIVE ANTI-HIV-1 ANTIBODIES - The present invention relates, in general, to an immunogen for HIV vaccination and, in particular, to a method of inducing the production of protective anti-HIV antibodies by targeting B cell germline and clone intermediates using a combination of HIV envelope and non-HIV immunogens. The invention also relates to compositions suitable for use in such a method. | 09-04-2014 |
20140294880 | MUTATED LENTIVIRAL ENV PROTEINS AND THEIR USE AS DRUGS - A pharmaceutical composition includes, as active substance a mutated lentiviral ENV protein, substantially devoid of immunosuppressive properties or a variant of the mutated lentiviral ENV protein or a fragment of the above proteins, in association with a pharmaceutically acceptable carrier. | 10-02-2014 |
20140302080 | STABILIZED HUMAN IMMUNODEFICIENCY VIRUS (HIV) ENVELOPE (ENV) TRIMER VACCINES AND METHODS OF USING SAME - The invention features stabilized human immunodeficiency virus (HIV) envelope (Env) trimers. The invention also features vaccines, nucleic acids, and vectors to deliver and/or facilitate production of the stabilized HIV Env trimers. In addition, the invention features methods of making and using the stabilized HIV Env trimers of the invention. | 10-09-2014 |
20140302081 | HIV-1 GP120 MINI V3 LOOP AND USES THEREOF - The invention relates to an immunogenic HIV-1 gp120 mini V3 loop, which is a truncated version of the full-length gp120 V3 loop useful for crystallization with antibodies that recognize carbohydrate moieties. The invention also relates to the structure of a broadly neutralizing antibody as a complex with a glycosylated gp120 outer domain, as determined by crystallographic techniques, and the confirmation that a glycosylated gp120 outer domain has a functional relevant conformation, as well as the determination of key residues on a glycosylated gp120 outer domain, and uses thereof and compounds and compositions therefrom. Furthermore, the invention also relates to other peptides and mimetic peptides, which bind to broadly neutralizing antibodies. | 10-09-2014 |
20140335119 | POLYPEPTIDE DERIVED FROM gp41, A VACCINE COMPOSITION COMPRISING SAID POLYPEPTIDE, AND USES FOR TREATING AN INFECTION BY AN HIV VIRUS IN AN INDIVIDUAL - The present invention relates to the field of the in vitro diagnosis of the progression status of an infection of an individual with a virus belonging to the family of the Human Immunodeficiency Viruses (HIV) as well as with the therapeutical treatment of this infectious disease. The invention also relates to immunological compounds and vaccine compositions comprising a polypeptide derived from gp41. | 11-13-2014 |
20140341941 | VACCINES AND METHODS FOR USING THE SAME - Improved anti-HIV immunogens and nucleic acid molecules that encode them are disclosed. Immunogens disclosed include those having consensus sequences for HIV Subtype A Envelope protein, those having consensus sequences for HIV Subtype B Envelope protein, those having consensus sequences for HIV Subtype C Envelope protein, those having consensus sequences for HIV Subtype D Envelope protein, those having consensus sequences for HIV Subtype B consensus Nef-Rev protein, and those having consensus sequences form HIV Gag protein subtypes A, B, C and D. Improved anti-HPV immunogens and nucleic acid molecules that encode them; improved anti-HCV immunogens and nucleic acid molecules that encode them; improved hTERT immunogens and nucleic acid molecules that encode them; and improved anti-Influenza immunogens and nucleic acid molecules that encode them are disclosed as well methods of inducing an immune response in an individual against HIV, HPV, HCV, hTERT and Influenza are disclosed. | 11-20-2014 |
20140348865 | IMMUNOGENS BASED ON AN HIV-1 V1V2 SITE-OF-VULNERABILITY - Disclosed are HIV immunogens. Also disclosed are nucleic acids encoding these immunogens and methods of producing these antigens. Methods for generating an immune response in a subject are also disclosed. In some embodiments, the method is a method for treating or preventing a human immunodeficiency type 1 (HIV-1) infection in a subject. | 11-27-2014 |
20140377299 | IMMUNOTHERAPY TARGETING INTRACELLULAR PATHOGENS - The present invention relates to the use of immunogenic peptides comprising a T-cell epitope derived from an intracellular pathogen-associated antigen and a redox motif such as C-(X)2-[CST] or [CST]-(X)2-C in the prevention and/or treatment of infection with an intracellular pathogen and in the manufacture of medicaments therefore. | 12-25-2014 |
20150050309 | VACCINE - The present invention relates, in-general, to Human immunodeficiency virus (HIV), and in particular to a carbohydrate-based vaccine for HIV and to methods of making and using same. | 02-19-2015 |
20150050310 | IMMUNOGENS FOR HIV VACCINATION - The present invention relates to novel immunogens based on overlapping peptides (OLPs) and peptides derived therefrom useful for the prevention and treatment of AIDS and its related opportunistic diseases. The invention also relates to isolated nucleic acids, vectors and host cells expressing these immunogens as well as vaccines including the immunogens. | 02-19-2015 |
20150056237 | METHOD OF ALTERING THE IMMUNDOMINANCE HIERARCHY OF HIV GAG BY DNA VACCINE EXPRESSING CONSERVED REGIONS - The invention provides methods and compositions for eliciting broad immune responses. The methods employ nucleic acid vaccines that encodes highly conserved elements from a virus. | 02-26-2015 |
20150071954 | STABLE PEPTIDE MIMETICS OF THE HIV-1 GP41 PRE-HAIRPIN INTERMEDIATE - The present invention relates to a gp41 trivalent peptide mimetic having three gp41 N-peptides on a chemical scaffold which conformationally constrains the N-peptides into a trimeric coiled-coil to mimic gp41 presentation. The present invention also relates to N-peptides having the entire HIV gp41 NH2-terminal heptad repeat region and which are capable of forming gp41 peptide mimetics. Such peptide mimetics of HIV-1 gp41 pre-hairpin intermediates can be utilized in a vaccine for the treatment or prevention of HIV-1 infection through eliciting neutralizing antibodies. | 03-12-2015 |
20150079123 | LIVE, ATTENUATED RUBELLA VECTOR TO EXPRESS VACCINE ANTIGENS - Disclosed herein are isolated rubella viral vector constructs that include a rubella non-structural protein open reading frame (ORF) without an in-frame deletion, a rubella structural protein ORF, and a heterologous antigenic insert. In one example, the heterologous antigenic insert is positioned within the rubella structural protein ORF. In some examples, the heterologous antigenic insert is positioned in the rubella structural protein ORF in between a gene encoding structural protein E2 and a gene encoding structural protein E1. Exemplary antigenic inserts include HIV, SIV, RSV or hepatitis B surface antigens. In some examples, the HIV antigenic insert is a Gag antigenic insert, a gp41 antigenic insert or a gp120 antigenic insert. Also disclosed are uses of the isolated rubella viral vector, such as to induce an immune response to a particular virus, such as HIV-1, testing sensitivity to neutralizing antibodies, or screening antiviral drugs (such as protease inhibitors). | 03-19-2015 |
20150098960 | TREATMENT OF CANCERS WITH IMMUNOSTIMULATORY HIV TAT DERIVATIVE POLYPEPTIDES - Disclosed herein are compositions comprising a Human Immunodeficiency Virus (HIV) trans-activator of transcription (Tat) derivative polypeptide with increased immunostimulatory properties relative to the native Tat polypeptide, pharmaceutical compositions comprising the Tat derivative polypeptide, and methods of treating cancer using the Tat derivative polypeptide. | 04-09-2015 |
20150132332 | Anti-HIV Vaccine Constructed Based on Amino Acid Mutations in Attenuated Live EIAV Vaccine - Provided are antigenic polypeptides of HIV envelope glycoproteins which are constructed based on amino acid mutation of attenuated live vaccine of Equine Infectious Anemia Virus, DNA constructions and recombinant virus vectors comprising polynucleotides encoding said polypeptides, antibodies against said polypeptides as well as uses thereof in preventing and treating HIV infection. Said antigenic polypeptides and vaccines can induce high titer neutralization antibodies against HIV in organism. | 05-14-2015 |
20150147348 | IMMUNOGENIC COMPOUNDS COMPRISING HIV GP41 PEPTIDE COUPLED TO CRM197 CARRIER PROTEIN - The present invention relates to the field of vaccines directed against viruses of the HIV family. More particularly, it relates to an immunogenic compound comprising a peptide of the following formula (I) NH2-[Nt]y-P-W-N-X-S-X2-S-N-X3-X4-X-X6-X7-I-W-[Ct]z-COOH (I) which is covalently linked to a carrier protein consisting of a CRM197 protein. It also concerns a composition containing this immunogenic compound and the uses of these immunogenic compounds and compositions for preventing and/or treating a condition caused by the infection of an individual with a HIV virus. | 05-28-2015 |
20150313990 | HIV THERAPEUTICS AND METHODS OF MAKING AND USING SAME - HIV neutralizing peptides, sulfated HIV-1 envelope proteins and immunogenic fragments thereof are disclosed, as well as nucleic acids encoding these molecules and methods of producing these peptides, envelope proteins and fragments. Methods are also provided for the treatment or prevention of a human immunodeficiency type 1 (HIV-1) infection. The methods can include administering to a subject an HIV neutralizing peptide, sulfated HIV-1 envelope protein or immunogenic fragment thereof as disclosed herein. In several embodiments, administering the HIV neutralizing peptide, sulfated HIV-1 envelope protein or immunogenic fragment generates an immune response in a subject. | 11-05-2015 |
20150359875 | POLYVALENT VACCINE - The disclosure generally relates to an immunogenic composition (e.g., a vaccine) and, in particular, to a polyvalent immunogenic composition, such as a polyvalent HIV vaccine, and to methods of using same. | 12-17-2015 |
20160000906 | SYNTHETIC CONJUGATE OF CpG DNA AND T-HELP/CTL PEPTIDE - Highly effective vaccine compositions are constructed according to the methods of this invention. The methods are amenable to use with any peptidic antigen sequence and involve covalent attachment of an immunostimulatory nucleotide sequence to an antigenic peptide sequence. Preferred antigenic peptides are fusion peptides made up of one or more CTL epitope peptides in sequence fused to a T helper peptide. | 01-07-2016 |
20160015802 | COMPOSITIONS AND METHODS TO TREAT AIDS - Polyvalent, primary isolate nucleic acid compositions for inducing an immune response against HIV are disclosed. The compositions and methods described herein are for the use of a nucleic acid composition that encodes one or more different HIV envelope glycoproteins. The synthetic, codon-optimized DNAs encoding one or more HIV proteins are a combination of different nucleic acids, such as DNA plasmids, generated from primary isolate DNA of different HIV major group genetic clades and/or different proteins. HIV polypeptide compositions for inducing an immune response against HIV are also disclosed. Methods for using the polypeptide compositions before, at the same time as, and/or after administration of the DNA compositions are provided. | 01-21-2016 |
20160031943 | COMPOSITIONS FOR PREVENTING AND/OR TREATING AN INFECTION BY AN HIV-1 VIRUS - The present invention relates to an immunogenic composition comprising an antigenic peptide of formula (I) below: Nt-S-X1-X2-X3-K-X4-Ct (I) [SEQ ID No 1], wherein —Nt consists of a peptide having from 0 to 50 amino acids in length, —Ct consists of a peptide having from 0 to 50 amino acids in length, —each of X1 to X4 consists of an amino acid residue, wherein: —(i) X1 means the specific amino acid W or (ii) X1 means any amino acid residue excepted W, —(i) X2 means the specific amino acid S or (ii) X2 means any amino acid residue excepted S, —(i) X3 means the specific amino acid N or (ii) X3 means any amino acid residue excepted N, —(i) X4 means the specific amino acid S or (ii) X4 means any amino acid residue excepted S, with the proviso that —three out of the four amino acid residues X1, X2, X3 and X4 mean the specific amino acid defined in their respective meaning (i) above, and —the remaining amino acid residue among X1 to X4 means any amino acid residue excepted the specific amino acid residue defined in its meaning (i), for preventing and/or treating an infection of an individual with an HIV-1 virus. | 02-04-2016 |
20160045591 | VACCINE AND THERAPEUTIC DELIVERY SYSTEM - The present invention relates to a new vaccine delivery system. In particular, the present invention includes compositions and methods of integrally transformed non-pathogenic, commensal bacteria that can express a nucleic acid molecule of a foreign polypeptide, wherein the nucleic acid molecule that encodes the foreign polypeptide is stably integrated into genomic DNA of the bacteria. The foreign polypeptide includes a vaccine antigen that elicits an immunogenic response, an inhibitor of a pathogen, or an immune booster or modulator. | 02-18-2016 |
20160045592 | COMPOSITIONS AND METHODS FOR THE TREATMENT OR PREVENTION OF HUMAN IMMUNODEFICIENCY VIRUS INFECTION - Disclosed are yeast-based immunotherapeutic compositions, human immunodeficiency virus (HIV) antigens, and fusion proteins for the treatment and/or prevention of HIV infection and symptoms thereof, as well as methods of using the yeast-based immunotherapeutic compositions, HIV antigens, and fusion proteins for the prophylactic and/or therapeutic treatment of HIV and/or symptoms thereof. | 02-18-2016 |
20160067329 | POLYVALENT VACCINE - The disclosure relates to nucleic acids mosaic clade M HIV-1 Env polypeptides and to compositions and vectors comprising same. The nucleic acids are suitable for use in inducing an immune response to HIV-1 in a human. | 03-10-2016 |
20160067331 | VIRAL PROTEINS AS IMMUNOMODULATORY AGENTS AND VACCINE COMPONENTS - The invention provides compositions and methods involving viral envelope polypeptides and peptides for use in modulating immune responses, including inhibition inflammation related to pathogenic T-cell activation. In addition, modification of the viral sequences responsible for modulating immune response provides for improved vaccine formulations. | 03-10-2016 |
20160089432 | METHODS AND COMPOSITIONS FOR INDUCING PROTECTIVE IMMUNITY AGAINST HUMAN IMMUNODEFICIENCY VIRUS INFECTION - Compositions, vaccines and methods for inducing protective immunity against Human Immunodeficiency Virus (HIV) infection are described. Heterologous vaccine combinations of one or more viral expression vectors and an isolated antigenic polypeptide induced strong protective immunity against infections by one or multiple clades of HIV. | 03-31-2016 |
20160095917 | DPS FUSION PROTEINS FOR USE IN VACCINES AND DIAGNOSTICS - Novel nanoparticle fusion proteins comprising proteins or peptides fused to Dps (DNA binding protein from starved cells) proteins are provided which bring forth distinct advantages for development of new and improved vaccines, diagnostic tests, and other biomedical products. | 04-07-2016 |
20160102295 | MODIFIED ADENOVIRUS HEXON PROTEIN AND USES THEREOF - The present invention provides a method of altering the specificity of an adenovirus vector. The method involves providing an adenovirus having a capsid with a modified adenovirus hexon protein. The modified adenovirus has a capsid comprising a hexon protein with a deletion in hypervariable region 1 and/or hypervariable region 4 of the hexon and an insert of an exogenous molecule therein. | 04-14-2016 |
20160106827 | V3 IMMUNOGENS - The present invention relates, in general, to human immunodeficiency virus (HIV), and, in particular, to a vaccine for HIV-1, comprising synthetic V3 glycopeptides, and to methods of making and using same. | 04-21-2016 |
20160114028 | DNA MOTIF COMPOUNDS AND METHODS FOR INDUCING SPECIFIC ANTIBODIES AND CELLULAR IMMUNITY - The present invention relates to the field of applied immunotechnology and medicine. More specifically, it relates to DNA motif vaccine design, glyco-DNA motif vaccine design, and immunogen design for producing antibodies against an epitope of arbitrary sequences or polysaccharide epitope, particularly those epitopes against which it is otherwise very difficult to induce antibodies, such as those of HIV-1. The present invention also relates to immunogen design to induce robust cellular and humoral immunity. | 04-28-2016 |
20160115205 | POLYVALENT HIV-1 IMMUNOGEN - The present invention relates, in general, to human immunodeficiency virus-1 (HIV-1) particular, to a polyvalent vaccine for HIV-1 and to methods of making and using same. | 04-28-2016 |
20160122412 | COMPOSITION COMPRISED OF ANTIGEN LINKED TO A TNF SUPERFAMILY LIGAND - The invention provides fusion proteins comprising antigens of infectious disease agents and cancer cells linked to multiple-trimer forms of TNF SuperFamily (TNFSF) ligands. The TNFSFs serve as vaccine adjuvants for increasing the immune response to the antigens. In particular, a fusion polypeptide strand that self-assembles inside cells into a multiple-trimer form of CD40 ligand (CD40L, TNFSF5) is provided. Other similar fusion proteins are also disclosed. The fusion proteins can be delivered to a host as isolated proteins, as nucleic acids used directly in DNA vaccination or carried and expressed by a viral vector such as adenovirus. In addition to use as a vaccine to prevent or ameliorate disease caused by an infectious agent, compositions of the invention may be used for the treatment of ongoing infection or for cancer immunotherapy. | 05-05-2016 |
20160129107 | MUTATED NON-PRIMATE LENTIVIRAL ENV PROTEINS AND THEIR USE AS DRUGS - A pharmaceutical composition includes, as active substance a mutated non-primate lentiviral Env protein having decreased immunosuppressive properties, substantially no immunosuppressive properties or no immunosuppressive properties, or a variant of the mutated lentiviral Env protein, or a fragment of the above proteins, in association with a pharmaceutically acceptable carrier. | 05-12-2016 |
20160144019 | Novel Therapeutic and Diagnostic Means - Disclosed is a method for treatment of HIV related diseases comprising targeting complexes between on the one hand the C5 domain of gp120 and on the other hand gp41 or the C2 domain of gp120. The complexes may be stabilised by administering compounds, such as antibodies, capable of directly interacting with and stabilising the complex, or by immunizing with C5 and gp41/C2 derived material so as to induce antibodies that bind to and stabilise the complex. | 05-26-2016 |
20160152666 | RECOMBINANT VIRAL VECTORS | 06-02-2016 |
20170233441 | RECOMBINANT HIV-1 ENVELOPE PROTEINS AND THEIR USE | 08-17-2017 |