King's College London

Mgi Pharma Biologics, Inc.

Other

Eisai Inc.

Mark Peakman

Roman M Chicz

Ruben Varela Calvino

The invention relates to a specific peptide combination. The peptide combination may be present in a pharmaceutically acceptable composition. The peptide combination can be used in the therapy or prevention of Type 1 Diabetes (TID). The invention also relates to a method of diagnosing or determining treatment efficacy, the method utilising the specific peptide combination.

Multi-peptide composition

The present disclosure provides isolated preproinsulin-derived peptides of 8 or 9 amino acids, comprising the amino acid sequence WGPDPAA (SEQ ID NO: 1), isolated Class I peptide-HLA complexes presenting said peptides and isolated molecules having binding affinity for said peptides and/or said peptide-HLA complexes. Such compositions are useful in the treatment of type 1 diabetes mellitus (T1DM). Such isolated molecules can include a T cell receptor (TCR) having specific binding affinity for a peptide-MHC complex wherein the MHC is an HLA Class I molecule and the peptide is a preproinsulin-derived peptide of 8 to 10 amino acids, comprising the amino acid sequence WGPDPAA (SEQ ID NO: 1).

T cell receptor having binding affinity for a peptide-MHC complex and uses thereof

The invention provides methods for identifying peptide epitopes that activate CD4+ T cells involved in the pathogenesis of diseases, e.g., autoimmune diseases, susceptibility to which is determined by expression of particular class II MHC genes. The invention includes peptides derived from the IA-2 polypeptide by such a method, altered peptide ligands, and methods of therapy involving the use of altered peptide ligands.

Peptide epitopes recognized by disease promoting CD4+ T lymphocytes

A peptide having a sequence comprising or consisting of QPLALEGSLQK.

Therapeutically effective peptides related to preproinsulin

The invention provides methods for identifying peptide epitopes that activate CD4&plus; T cells involved in the pathogenesis of diseases, e.g., autoimmune diseases, susceptibility to which is determined by expression of particular class II MHC genes. The invention includes peptides derived from the IA-2 polypeptide by such a method, altered peptide ligands, and methods of therapy involving the use of altered peptide ligands.

Growing community of inventors

London, United Kingdom

Mark Peakman