Induction of apoptosis by Chan Su, a traditional Chinese medicine, in human bladder carcinoma T24 cells.

Chan Su is a traditional Chinese medicine prepared from the dried white secretion of the auricular and skin glands of toads, and has been used as an Oriental drug. However, little is known about the effect of Chan Su on the growth of human cancer cells. This study was undertaken to investigate the underlying mechanism of Chan Su-induced apoptosis in a human bladder carcinoma cell line, T24.