Abstract: The invention relates to recombinant measles virus expressing Immunodeficiency virus (IV) or HTLV polypeptides, and concerns in particular immunogenic immunodeficiency virus particles expressed by a measles virus and/or virus like particles (VLPs) that contain proteins of at least one immunodeficiency virus or Human T-lymphotropic virus. These particles may be recombinant infectious particles able to replicate in a host after an administration. The invention provides means, in particular nucleic acid constructs, vectors, cells and rescue systems to produce these recombinant infectious particles. The invention also relates to the use of these recombinant infectious particles, in particular under the form of a composition, more particularly in a vaccine formulation, for the treatment or prevention of an infection by HIV or HTLV.

Abstract: Disclosed is human endogenous retroviral protein. This human endogenous retroviral protein is herein generally referred to as HEMO. The application relates more particularly to shed forms of the HEMO protein, more particularly to those shed forms, which are released in the circulating blood. The application also relates to products deriving from the shed forms of HEMO, such as antibodies, nucleic acid vectors and engineered cells, as well as to the medical or biotechnological applications of these shed forms or derived products, notably in the fields of placental development, fetus protection, cancer treatment and stem cell production.

Abstract: 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.

Abstract: The present invention provides vectors that contain and express in vivo or in vitro FeLV antigens that elicit an immune response in animal or human against FeLV, compositions comprising said vectors and/or FeLV polypeptides, methods of vaccination against FeLV, and kits for use with such methods and compositions.

Abstract: 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.

Abstract: The present invention provides vectors that contain and express in vivo or in vitro FeLV antigens that elicit an immune response in animal or human against FeLV, compositions comprising said vectors and/or FeLV polypeptides, methods of vaccination against FeLV, and kits for use with such methods and compositions.

Abstract: 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.

Abstract: 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.

Abstract: The present invention provides vectors that contain and express in vivo or in vitro FeLV antigens that elicit an immune response in animal or human against FeLV, compositions comprising said vectors and/or FeLV polypeptides, methods of vaccination against FeLV, and kits for use with such methods and compositions.

Abstract: The present invention provides vectors that contain and express in vivo or in vitro FeLV antigens that elicit an immune response in animal or human against FeLV, compositions comprising said vectors and/or FeLV polypeptides, methods of vaccination against FeLV, and kits for use with such methods and compositions.

Abstract: The present invention provides vectors that contain and express in vivo or in vitro FeLV antigens that elicit an immune response in animal or human against FeLV, compositions comprising said vectors and/or FeLV polypeptides, methods of vaccination against FeLV, and kits for use with such methods and compositions.

Abstract: The present invention provides vectors that contain and express in vivo or in vitro FeLV antigens that elicit an immune response in animal or human against FeLV, compositions comprising said vectors and/or FeLV polypeptides, methods of vaccination against FeLV, and kits for use with such methods and compositions.

Abstract: 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.

Abstract: 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.

Abstract: Mutated viral ENV proteins having mutations in the immunosuppressive domain (ISU) of the transmembrane subunit (TM) have decreased immunosuppressive activity with respect to the wild-type ENV protein. Pharmaceutical compositions that include the protein and nucleic acids coding for the protein are also disclosed.

Abstract: The present invention provides vectors that contain and express in vivo or in vitro FeLV antigens that elicit an immune response in animal or human against FeLV, compositions comprising said vectors and/or FeLV polypeptides, methods of vaccination against FeLV, and kits for use with such methods and compositions.

Abstract: Mutated viral ENV proteins having mutations in the immunosuppressive domain (ISU) of the transmembrane subunit (TM) have decreased immunosuppressive activity with respect to the wild-type ENV protein. Pharmaceutical compositions that include the protein and nucleic acids coding for the protein are also disclosed.

Abstract: The present invention provides vectors that contain and express in vivo or in vitro FeLV antigens that elicit an immune response in animal or human against FeLV, compositions comprising said vectors and/or FeLV polypeptides, methods of vaccination against FeLV, and kits for use with such methods and compositions.

Abstract: The present invention relates to a polypeptide having a sequence of 7 to 20 amino acid residues, which is capable of modulating the immunosuppressive properties of a viral protein or a fragment thereof, against the host in which it is expressed (immunosuppression-modulatory sequence) when it substitutes the homologous sequence of the viral protein or fragment, the polypeptide including the minimum following consensus amino acid sequence: X1Y9Y10Y11CY12X2 wherein, X1 and X2 are selected to impact on the immunosuppressive properties, and Y9 to Y12 represent variable amino acid residues.

Abstract: 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.