title: Effect of operation on cell-mediated immune response to autologous tumor extract in cancer patients.
abstract: Utilizing lymphocyte proliferation assay, effects of operation on cell-mediated immune response to autologous tumor extract were studied in 33 patients with gastric or colon carcinoma. To evaluate the lymphocyte proliferation response to autologous tissue extract preoperatively, the lymphocytes were left in culture for 24-30 hours before addition of the extract while 3 M KCl extract of autologous tissue was being processed. A significant level (P less than 0.001) of correlation was observed between stimulation index values to autologous tumor extract added at the initiation of culture and after a 24-30-hour period of incubation. Using this type of assay system, lymphocyte proliferation response to autologous tumor extract was examined immediately before operation and 1, 2, and 4 weeks after operation serially. Data comparing the responses of 20 patients who had curative resection and 13 patients who underwent noncurative resection appeared to fall into three categories in each group. The clinical courses of these patients in each category might clarify the significance of changes in the response following operation.
mesh_terms: D003110:Colonic Neoplasms / Q000276:immunology* / Q000601:surgery; D005260:Female; D006801:Humans; D007111:Immunity, Cellular; D037102:Lectins / Q000494:pharmacology; D008213:Lymphocyte Activation; D008297:Male; D011379:Prognosis; D013274:Stomach Neoplasms / Q000276:immunology* / Q000601:surgery
chemical_list: D037102:Lectins