PEPTIDE COMPOSITIONS CAPABLE OF DOWN REGULATING AN ANTIGEN SPECIFIC IMMUNE RESPONSE

摘要

Therapeutic compsns. as follows are claimed: compsn. 1 comprising at least one isolated peptide having a defined sequence of amino acid residues, the compsn. being capable of down-regulating an antigen specific immune response (ASIR) in a population of humans subject to the ASIR, when administered in non-immunogenic form; and compsn. 2 comprising at least one isolated and purified peptide having a defined length, a defined sequence of amino acid residues and comprising at least one T cell epitope of a protein antigen, the compsn. being capable of down-regulating an ASIR to the protein antigen in a population of humans subject to the ASIR when administered in non-immunogenic form.