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pubmed:abstractText |
Authors studied the effects of several biological response modifiers (BRMs) on bladder carcinoma. On carcinogenesis in BBN-induced bladder carcinoma rats, Schizophyllan (SPG) showed inhibition of body weight loss and thymus weight loss. Bladder weight increase was also inhibited. SPG prolonged cancer-bearing survival time, and postponed malignant changes of bladder mucosa. On thymocytes of SPG-treated cancer-bearing rats, rosette-forming thymocytes increased. In clinical study, SPG, OK-432, ubenimex and kampo medicine were used as BRMs. As a result, the number of suppressor-inducer T cells increased, and in cytotoxic T cells a slow fall was observed. On helper-inducer T cells, a slow rise and decrease were noticed in the SPG group, and the reverse tendency was seen in the ubenimex and OK-432 group.
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