Abstract: Novel anti-human CD25 antibodies or antigen-binding fragments thereof and their use for treating cancer and infectious diseases. Also, a nucleic acid encoding an anti-human CD25 antibody or antigen-binding fragment thereof, and a fusion protein including an isolated anti-human CD25 antibody or antigen-binding fragment thereof. Further, a pharmaceutical composition including an isolated anti-human CD25 antibody or antigen-binding fragment thereof.

Abstract: Novel anti-human CD25 antibodies and their use for treating cancer and infectious diseases. Also, a nucleic acid encoding an anti-human CD25 antibody or an antigen-binding fragment thereof, and a fusion protein including an isolated anti-human CD25 antibody or an antigen-binding fragment thereof. Further, a pharmaceutical composition including an isolated anti-human CD25 antibody or an antigen-binding fragment thereof.

Abstract: The inventors have identified a novel cell-penetrating sequence, termed hAP10, from the C-terminus of the human protein Acinus. hAP10 was able to efficiently enter various normal and cancerous cells, likely through an endocytosis pathway, and to deliver an EGFP cargo to the cell interior. Cell penetration of a peptide, hAP10DR, derived from hAP10 by mutation of an aspartic acid residue to an arginine was dramatically increased. Interestingly, a peptide containing a portion of the heptad leucine repeat region domain of the survival protein AAC-11 (residues 377-399) fused to either hAP10 or hAP10DR was able to induce tumor cells death in vitro and to inhibit tumor growth in vivo in a sub-cutaneous xenograft mouse model for the Sézary syndrome. Combined, the results indicate that hAP10 and hAP10DR may represent promising vehicles for in vitro or in vivo delivery of bioactive cargos, with potential use in clinical settings.

Abstract: Sézary syndrome is a rare, aggressive, and leukemic form of cutaneous T-cell lymphoma (CTCL) characterized by erythroderma associated with generalized peripheral lymphadenopathy and circulating clonal malignant T cells called Sézary cells. Current animal models of Sézary syndrome are not satisfactory since no cutaneous symptoms or occurrence of metastases could be observed. Now the inventors developed a new non-human animal model that repeat the major cutaneous symptoms of the human disease. This model could be suitable for screening new drugs and biomarkers of the disease.

Abstract: The present invention relates to monoclonal antibodies that bind to the CD160-TM isoform. The inventors developed new monoclonal antibodies which bind to the CD160-TM isoform but dot not bind to the CD160 GPI-anchored isoform not to the CD160 soluble isoform. In particular, the antibodies of the present invention are suitable for amplifying NK cell activation and therefore cytotoxic functions NK cells.

Abstract: The present invention relates to monoclonal antibodies that bind to the CD160-TM isoform. The inventors developed new monoclonal antibodies which bind to the CD160-TM isoform but dot not bind to the CD160 GPI-anchored isoform not to the CD160 soluble isoform. In particular, the antibodies of the present invention are suitable for amplifying NK cell activation and therefore cytotoxic functions NK cells.

Abstract: The present invention relates to a ligand molecule that specifically binds to KTR3DL2 at the surface of KTR3DL2 expressing malignant T-cells for the treatment of lymphomas. It also relates to the in vitro use of a level of expression of KIR3DL2 is a biomarker useful for diagnosing and/or monitoring a lymphoma.

Abstract: The present disclosure relates to methods and pharmaceutical compositions for enhancing NK cell killing activities. In particular, the disclosure relates to a method of enhancing NK cell killing activities in a subject in need thereof comprising administering to the subject a therapeutically effective amount of a compound capable of stimulating CD245 on NK cells.

Abstract: The present invention relates to a ligand molecule that specifically binds to KTR3DL2 at the surface of KTR3DL2 expressing malignant T-cells for the treatment of lymphomas. It also relates to the in vitro use of a level of expression of KIR3DL2 is a biomarker useful for diagnosing and/or monitoring a lymphoma.

Abstract: The present invention relates to a method for diagnosing a cutaneous T cell lymphoma (CTCL) in a patient, detecting the abnormal expression of NKp46 receptor on malignant T cells and to a kit for diagnosing a CTCL in a patient, said kit comprising an antibody capable of detecting NKp46 receptor and an antibody capable of detecting T cells. Furthermore, the invention refers to an anti-NKp46 antibody for use in the treatment of CTCL and a pharmaceutical composition for the treatment of CTCL comprising said anti-NKp46 antibody.

Abstract: The present invention concerns an isolated polypeptide comprising a sequence selected in the group comprising SEQ ID NO.7, its orthologs, and derivatives thereof; a polynucleotide comprising a nucleic acid sequence encoding for said polypeptide; a vector comprising said polynucleotide; a host cell genetically engineered with said polynucleotide or with said vector; a pharmaceutical composition comprising said polypeptide, a polynucleotide coding for said polypeptide or a vector comprising said polynucleotide, and optionally a pharmaceutically acceptable carrier; a method for screening for antagonists and/or agonists of said polypeptide; and uses of said polypeptide, a polynucleotide coding for said polypeptide or a vector comprising said polynucleotide, for the manufacture of a medicament.

Abstract: Isolated nucleic acid molecules encoding a novel protein, SKAP55, that interacts with the protein tyrosine kinase Fyn, are disclosed. SKAP55 protein has an apparent native molecular weight of 55 kDa, an isoelectric point of 4.3 and contains a pleckstrin homology (PH) domain and a src homology 3 (SH3) domain. In addition to isolated nucleic acids molecules encoding SKAP55 protein, the invention provides antisense nucleic acid molecules, recombinant expression vectors containing a nucleic acid molecule of the invention, host cells into which the expression vectors have been introduced and non-human transgenic animals carrying a SKAP55 transgene. The invention further provides isolated SKAP55 proteins and peptides, SKAP55 fusion proteins and anti-SKAP55 antibodies.