Tin-protoporphyrin IX (SnPPIX) is a potent Heme oxygenase-1 (HO-1) inhibitor. Tin-protoporphyrin IX (SnPPIX) sensitizes pancreatic ductal adenocarcinoma (PDAC) tumors to chemotherapy in mice model^[1]. IC50 & Target: IC50: Heme oxygenase-1 (HO-1)^[1] In Vitro: Tin-protoporphyrin IX (SnPPIX)(20 μM, 50 μM; 24 hours) significantly suppressed the proliferation of Capan-1 and CD18/HPAF cells. In contrast, SnPPIX has no significant effect on PDAC cells proliferation at all exposures except at 50 μM^[1].
In Vivo: Tin-protoporphyrin IX (SnPPIX)(intraperitoneal injection; 5 mg/kg; at 0, 7, 15, and 20 days) alone or combines with Gemcitabine significantly reduced the weight of pancreatic tumors (P < 0.05), decreases metastasis and improved the efficacy of Gemcitabine treatment^[1].