摘要:
The invention relates to methods and compositions for causing the selective targeting and killing of tumor cells. Through ex vivo gene therapy protocols tumor cells are engineered to express an α (1,3) galactosyl epitope. The cells are then irradiated or otherwise killed and administered to a patient. The α galactosyl epitope causes opsonization of the tumor cell enhancing uptake of the opsonized tumor cell by antigen presenting cells which results in enhanced tumor specific antigen presentation. The animal's immune system thus is stimulated to produce tumor specific cytotoxic cells and antibodies which will attack and kill tumor cells present in the animal.
摘要:
The present invention provides an immunogenic composition comprising a T-cell antigen in association with a rhamnose monosaccharide and/or Forssman disaccharide, and corresponding methods for inducing immune response. The T-cell antigen may be for example, a tumor vaccine, such as a tumor cell or one or more tumor antigens. The invention takes advantage of the naturally high titers of anti-Rhamnose and/or anti-Forssman disaccharide in humans to target vaccine compositions to antigen presenting cells.