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2004 AUG 4 - (NewsRx.com & NewsRx.net) -- Investigators review DNA fusion gene vaccines against cancer in a recent issue of Immunological Reviews.
"Vaccination against target antigens expressed by cancer cells has now become a realistic goal. DNA vaccines provide a direct link between identification of genetic markers in tumors and vaccine formulation. Simplicity of manufacture facilitates construction of vaccines against disease subsets or even for individual patients," scientists in England report.
"To engage an immune system that exists to fight pathogens, we have developed fusion gene vaccines encoding tumor antigens fused to pathogen-derived sequences," said Freda K. Stevenson and colleagues at Southampton University Hospital. "This strategy activates high levels of T-cell help, the key to induction and maintenance of effective immunity. We have dissected the immunogenic tetanus toxin to obtain specific sequences able to activate antibody, CD4+, or CD8+ T cells to attack selected fused tumor antigens. Principles established in preclinical models are now being tested in patients."
"So far, objective immune responses against idiotypic antigen of neoplastic B cells have been observed in patients with B-cell malignancies and in normal transplant donors," stated ...
Source: HighBeam Research, DNA fusion gene vaccines against cancer reviewed.