Abstract: The invention relates to a novel antibody capable of binding specifically to the human c-Met receptor and/or capable of specifically inhibiting the tyrosine kinase activity of said receptor both in a ligand-dependent and in a ligand-independent manner, with an improved antagonistic activity, said antibody comprising a modified hinge region. The invention also relates to a composition comprising such an antibody antagonist to c-Met and its use as a medicament for treating cancer.

Abstract: Antibody capable of binding specifically to the human c-Met receptor and/or capable of specifically inhibiting the tyrosine kinase activity of said receptor, with an improved antagonistic activity, said antibody comprising a modified hinge region. A composition comprising such an antibody antagonist to c-Met and its use as a medicament for treating cancer.

Abstract: Antibody capable of binding specifically to the luman c-Met receptor and/or capable of specifically inhibiting the tyrosine kinase activity of said receptor, with an improved antagonistic activity, said antibody comprising a modified hinge region. A composition comprising such an antibody antagonist to c-Met and its use as a medicament for treating cancer.

Abstract: The present invention relates to novel isolated antibodies, derived compounds, and functional isolated antibody fragments, capable of inhibiting the proliferation of tumor cells in vitro and/or in vivo and obtained by functional screening. More particularly, the present invention relates to the 6F4 antibody, specific to the JAM-A protein, as well as its use for the treatment of cancer. Pharmaceutical compositions composed of these antibodies are also covered.

Abstract: The present invention relates to novel isolated antibodies, derived compounds, and functional isolated antibody fragments, capable of inhibiting the proliferation of tumor cells in vitro and/or in vivo and obtained by functional screening. More particularly, the present invention relates to the 6F4 antibody, specific to the JAM-A protein, as well as its use for the treatment of cancer. Pharmaceutical compositions composed of these antibodies are also covered.

Abstract: Antibody capable of binding specifically to the human c-Met receptor and/or capable of specifically inhibiting the tyrosine kinase activity of said receptor, with an improved antagonistic activity, said antibody comprising a modified hinge region. A composition comprising such an antibody antagonist to c-Met and its use as a medicament for treating cancer.

Abstract: The invention relates to a novel antibody capable of binding specifically to the human c-Met receptor and/or capable of specifically inhibiting the tyrosine kinase activity of said receptor both in a ligand-dependent and in a ligand-independent manner, with an improved antagonistic activity, said antibody comprising a modified hinge region. The invention also relates to a composition comprising such an antibody antagonist to c-Met and its use as a medicament for treating cancer.

Abstract: The invention relates to a method for generating a DNA sequence coding for the heavy chain or the light chain of at least one antibody from RNA from a cell capable of producing an antibody. More particularly, the invention relates to the generation of a monoclonal antibody library. The invention also relates to the use of an antibody library for screening monoclonal antibodies, preferably human antibodies for treating cancer.

Abstract: The present invention relates to novel isolated antibodies, or the derived compounds or functional fragments of same, capable of inhibiting the proliferation of tumor cells in vitro and/or in vivo, said antibodies having been obtained by functional screening. More particularly, the present invention relates to the 6F4 antibody, specific to the JAM-A protein, as well as its use for the treatment of cancer. Pharmaceutical compositions composed of such antibodies are also covered.

Abstract: A mutant Fab fragment of the 13B8.2 anti-CD4 antibody that binds a CD4 molecule and includes a mutation of at least one residue in a position situated in the VH variable domain of the heavy chain and/or in a position situated in the V? variable domain of the light chain.

Abstract: A mutant Fab fragment of the 13B8.2 anti-CD4 antibody that binds a CD4 molecule and includes a mutation of at least one residue in a position situated in the VH variable domain of the heavy chain and/or in a position situated in the V? variable domain of the light chain.

Abstract: An isolated CDR-derived polypeptide from monoclonal antibody 13B8.2, a pharmaceutical composition including a pharmaceutically acceptable carrier and at least a peptide, and a method for treating a subject suffering from an autoimmune disorder, including administering to the subject a therapeutically effective amount of a pharmaceutical composition, a method for treating a subject suffering from a transplant rejection including administering to the subject a therapeutically effective amount of a pharmaceutical composition, a method for treating a subject suffering from an HIV immunodeficiency disorder including administering to the subject a therapeutically effective amount of a pharmaceutical composition and a method for treating a subject suffering from a tumoral disorder including administering to the subject a therapeutically effective amount of a pharmaceutical composition.