NCI Drug Dictionary

The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

liposomal MUC1/PET-lipid A vaccine
A cancer vaccine comprised of a 43 amino acid epitope from glycoprotein MUC1 (mucin 1) and the synthetic Toll-like receptor 4 (TLR-4) agonist PET lipid A encapsulated in cholesterol/dipalmitoylphosphatidylcholine (DPPC)/dimyristoylphosphatidylglycerol (DMPG) liposomes, with potential immunostimulatory and antineoplastic activities. The MUC1 epitope is composed of two 20 amino glycosylated VNTR (various number tandem repeats) from human MUC1A and including 6 glycosylated sites modified by Tn (alfa-N-acetyl-D-galactosamine). Immunization of liposomal MUC1/PET-lipid A vaccine results in an antibody as well as a cytotoxic T-lymphocyte (CTL) response against hypoglycosylated MUC1 expressing tumor cells. The tumor associated antigen MUC1, a type І transmembrane protein, is overexpressed and aberrantly glycosylated in a variety of tumor cells. As a vaccine adjuvant, PET lipid A, also known as penta erythritol lipid A, stimulates both cellular and humoral responses to the vaccine antigen. Check for active clinical trials using this agent. (NCI Thesaurus)

Code name:ONT-10