title: Immunological evaluation of a streptococcal preparation (OK-432) in treatment of bladder carcinoma.
abstract: When 21 patients with bladder cancer (transitional cell carcinoma) were given local and systemic injections of a streptococcal preparation, OK-432, tumor regression was observed in 3 cases (14.3%). The marked infiltration of lymphocytes observed on histological examination of regressed tumors suggested that a host-mediated action was involved in the antitumor effect of OK-432.
mesh_terms: D001688:Biological Products / Q000627:therapeutic use*; D002295:Carcinoma, Transitional Cell / Q000276:immunology / Q000473:pathology / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010844:Picibanil / Q000627:therapeutic use*; D001749:Urinary Bladder Neoplasms / Q000276:immunology / Q000473:pathology / Q000628:therapy*
chemical_list: D001688:Biological Products; D010844:Picibanil