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Abstract
Selectively apoptosis-targeting compounds in gastrointestinal cancers attract broad interest. Here, we investigated a synthetic sulfonamide, 4-bromo-N-(5-ethyl-5H-pyrido[4,3-b]indol-8-yl)benzenesulfonamide (L34). It showed high activity against gastric cancer cells SGC-7901, causing apoptosis, which was associated with downregulation of caspase-3 and XIAP, upegulation of cleaved caspase-3, and cleavage of PARP. Hence, L34 might be a potent chemotherapeutic agent against human gastric cancer.