Yeda Research and Develpment & Co. Ltd

Esther Tzehoval

Lea Eisenbach

Adrian Paz

Boaz Tirosh

Arthur Machlenkin

Matityahu Fridkin

Yosi Gozlan

Lior Carmon

Erez Bar-Haim

Cheryl Fitzer-Attas

Rachel Lea Eisenbach

The present invention relates to methods and systems for increasing the affinity of a T cell receptor (TCR) to its ligand by subjecting the TCR gene to somatic hypermutation. The present invention further relates to use of affinity maturated TCRs to create T cells reactive against a selected antigen.

Affinity maturated T cell receptors and use thereof

A method of inhibiting growth of, reducing or eliminating a cell population of a subject in need thereof is disclosed. The method comprises (a) thermally, mechanically and/or chemically damaging antigen-bearing cells which comprise at least one antigen characterizing cells of the cell population, with the proviso that the chemically damaging of the antigen-bearing cells is not predominantly effected using one or more antineoplastic agents, thereby generating immunogenic cells; and (b) introducing in the subject a cell aggregate which comprises the immunogenic cells and added antigen-presenting cells, thereby inducing an immune response for inhibiting growth of, reducing or eliminating the cell population of the subject.

Methods and immunogenic cell preparations for treating antigen-associated diseases

The present invention relates to tumor associated antigen (TAA) peptides and to use of same, of polynucleotides encoding same and of cells presenting same as anti-tumor vaccines. More particularly, the present invention relates to tumor associated antigen peptides derived from Uroplakin Ia, Ib, II and III, Prostate specific antigen (PSA), Prostate acid phosphatase (PAP) and Prostate specific membrane antigen (PSMA), BA-46 (Lactadherin), Mucin (MUC-1), and Teratocarcinoma-derived growth factor (CRIPTO-1) and the use of same as anti-tumor vaccines to prevent or cure bladder, prostate, breast or other cancers, carcinomas in particular. Most particularly, the present invention relates to tumor associated antigen peptides which are presentable to the immune system by HLA-A2 molecules.

Tumor associated antigen peptides and use of same as anti-tumor vaccines

The invention relates to colon and prostate tumor associated antigen peptides obtainable from prostate specific G protein-coupled receptor (PSGR), six-transmembrane epithelial antigen of prostate (STEAP) and proteins encoded by genes found overexpressed in colon carcinoma cells, such as human 1-8D interferon induced transmembrane protein 2. The invention further relates to a polynucleotide encoding the tumor associated antigen peptides and to pharmaceutical compositions, which are preferably anti-tumor vaccine compositions, containing a tumor associated antigen, at least one tumor associated antigen peptide thereof, or encoding polynucleotide thereof as an active ingredient. The pharmaceutical compositions can be administered to a patient in need thereof to treat or inhibit the development of colon or prostate cancer.

Tumor associated antigen, peptides thereof, and use of same as anti-tumor vaccines

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Rehovot, Israel

Esther Tzehoval