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2004 JUN 2 - (NewsRx.com & NewsRx.net) -- A synthetic luteinizing hormone releasing hormone (LHRH) vaccine was effective for the treatment of prostate cancer.
"We have designed a peptide-based immunotherapeutic vaccine for treatment of androgen-responsive prostate cancer. The vaccine targets the luteinizing hormone-releasing hormone (LHRH) decapeptide that results in an androgen-deprivation immunotherapy. The design elements of the peptide immunogens are the LHRH peptide or B cell epitope synthetically linked to different promiscuous helper T cell (Th) sequences, the UBITh epitopes, derived from four natural pathogens for effective immunogenicity in outbred populations, and in some cases, also linked to an adjuvanting peptide from Yersinia invasin (Inv) protein," scientists writing in the journal Vaccine report.
"The UBITh LHRH immunogens are adsorbed on Alhydrogel or formulated as several different oil-based emulsions and tested in rodents, dogs, and a non-human primate, baboons," said Connie L. Finstad and collaborators at United Biomedical Inc., New York University School of Medicine, and the Southwest Foundation for Biomedical Research.
"The immunogens generate an anti-LHRH antibody response specific to the LHRH decapeptide element in contrast to LHRH conjugate-carrier protein vaccines where only a small portion of the antibody response is directed to the target epitope and epitopic suppression is noted," ...
Source: HighBeam Research, Peptide-based vaccine effective for prostate cancer.