Poly(ADP-ribose) (PAR) polymerase-1 (PARP-1) acts as a DNA damage sensor. It recognizes DNA damage and facilitates DNA repair by recruiting DNA repair machinery to damage sites[3]. AG14361 is a potent PARP-1 inhibitor, with a Ki of < 5 nM, and in permeabilized SW620 and intact SW620 cells, the IC50s are 29 nM and 14 nM, respectively. AG14361 inhibits the proliferation of human cancer cells, such as A549, LoVo, and SW620 cells, with GI50s of 14 μM, 11.2 μM and 20 μM, respectively[4].AG14361 suppresses breast cancer cells with IC50s of 17 μM and 25 μM for 92 J-wt-BRCA1 and 92 J-sh-BRCA1 cells, respectively. AG14361 induces caspase 3/7 activation and cell cycle abnormalities, and also inhibits NF-κB signaling. AG14361 (5 and 15 mg/kg, i.p.) has no toxicity and does not inhibit the growth of tumor. However, AG14361 markedly enhances NSC 362856 activity against LoVo xenografts and delays tumor growth when combined with NSC 362856. AG14361 (15 mg/kg, i.p.) treatment before irradiation dramaticly increases the sensitivity to radiation therapy of mice bearing LoVo xenografts. AG14361 (30 mg/kg) synergizes lestaurtinib activity on inhibiting breast cancer tumors in allografts[5].AG14361 suppresses breast cancer cells with IC50s of 17 μM and 25 μM for 92 J-wt-BRCA1 and 92 J-sh-BRCA1 cells, respectively. AG14361 induces caspase 3/7 activation and cell cycle abnormalities, and also inhibits NF-κB signaling[2]. AG14361 (0.4 μM) enhances the growth-inhibitory and cytotoxic effects of topoisomerase I poisons, with no obvious effect on the formation and reversal of cleavable complexes, and increases the persistence of camptothecin-induced DNA single-strand breaks[6].
AG14361 细胞研究
细胞系
浓度
检测类型
检测时间
活动说明
数据源
LoVo cells
Function assay
Concentration that gives 50% growth inhibition in LoVo cells, activity expressed as GI50, GI50=11.2 μM
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