Abstract: The present invention relates to polyspecific binding molecules and particularly single-chain polyspecific binding molecules that include at least one single-chain T-cell receptor (sc-TCR) covalently linked through a peptide linker sequence to at least one single-chain antibody (sc-Ab). Further disclosed are methods and compositions for testing and using the molecules.

Abstract: The present invention relates to polyspecific binding molecules and particularly single-chain polyspecific binding molecules that include at least one single-chain T-cell receptor (sc-TCR) covalently linked through a peptide linker sequence to at least one single-chain antibody (sc-Ab). Further disclosed are methods and compositions for testing and using the molecules.

Abstract: The invention provides T-cell receptor (TCR) molecules comprising a V? chain and a V? chain that bind peptides derived from the p53 protein, preferably, the human p53 protein. The TCR molecules include both heterodimeric molecules and single chain molecules which specifically bind a sequence preferably spanning about amino acid positions 264-272 of the p53 protein displayed in the context of an HLA molecule, preferably, HLA-A2.1. Also disclosed are methods for making and using such TCR molecules. The invention has a wide spectrum of useful application including therapeutic uses and use in the detection of cells expressing p53 protein.

Abstract: The invention provides T-cell receptor (TCR) molecules comprising a V? chain and a V? chain that bind peptides derived from the p53 protein, preferably, the human p53 protein. The TCR molecules include both heterodimeric molecules and single chain molecules which specifically bind a sequence preferably spanning about amino acid positions 264-272 of the p53 protein displayed in the context of an HLA molecule, preferably, HLA-A2.1. Also disclosed are methods for making and using such TCR molecules. The invention has a wide spectrum of useful application including therapeutic uses and use in the detection of cells expressing p53 protein.

Abstract: The present invention relates to methods and compositions of activating cytotoxic T lymphocytes (CTLs) in vivo with specificity for particular antigenic peptides, and to methods and compositions of using activated CTLs in vivo for the treatment of a variety of disease conditions. In some preferred embodiments, the invention provides methods of employing a polypeptide of the amino acid sequence VMAGVGSPYV to specifically activating CTLs in subjects having a breast cancer overexpressing a Her-2/Neu protein, and methods of using the polypeptide to treat such subjects.

Abstract: Methods are described to obtain nucleic acid molecules that encode T cell receptors and their derivatives that are human HLA-restricted and which are specific for tumor-associated antigens found in human tumors. These nucleic acids are useful in preparing recombinant cells for diagnosis and therapy of human tumors.

Abstract: The present invention relates to polyspecific binding molecules and particularly single-chain polyspecific binding molecules that include at least one single-chain T-cell receptor (sc-TCR) covalently linked through a peptide linker sequence to at least one single-chain antibody (sc-Ab). Further disclosed are methods and compositions for testing and using the molecules.

Abstract: The present invention relates to methods, compositions, and peptides useful in activating CTLs in vivo with specificity for particular antigenic peptides. The invention also discloses the use of activated CTLs in vivo for the diagnosis and treatment of a variety of disease conditions, and compositions appropriate for these uses. Diagnostic systems, components, and methods are also described herein.

Abstract: The present invention relates to polyspecific binding molecules and particularly single-chain polyspecific binding molecules that include at least one single-chain T-cell receptor (sc-TCR) covalently linked through a peptide linker sequence to at least one single-chain antibody (sc-Ab). Further disclosed are methods and compositions for testing and using the molecules.

Abstract: The present invention relates to methods, compositions, and peptides useful in activating CTLs in vivo with specificity for particular antigenic peptides. The invention also discloses the use of activated CTLs in vivo for the diagnosis and treatment of a variety of disease conditions, and compositions appropriate for these uses. Diagnostic systems, components, and methods are also described herein.

Abstract: Methods are described to obtain nucleic acid molecules that encode T cell receptors and their derivatives that are human HLA-restricted and which are specific for tumor-associated antigens found in human tumors. These nucleic acids are useful in preparing recombinant cells for diagnosis and therapy of human tumors.