Novel potent HIF-1 inhibitors for the prevention of tumor metastasis: discovery and optimization of 3-aryl-5-indazole-1,2,4-oxadiazole derivatives
作者:Rong Sheng、Shan Li、Guanyu Lin、Shihao Shangguan、Yongchuan Gu、Ni Qiu、Ji Cao、Qiaojun He、Bo Yang、Yongzhou Hu
DOI:10.1039/c5ra15191k
日期:——
critical role in tumor metastasis. We describe here the discovery and a structure–activity relationship study of a series of 3-aryl-5-indazole-1,2,4-oxadiazole derivatives as novel HIF-1 inhibitors. The two most promising compounds 4g and 4h inhibit HIF-1 transcription with IC50 values of 0.62 and 0.55 μM in vitro, respectively, and they exhibit more efficient HIF-1 inhibition in xenograft tumors than YC-1
缺氧诱导因子-1(HIF-1)是细胞对缺氧反应的关键转录因子,在肿瘤转移中起关键作用。我们在这里描述了一系列作为新型HIF-1抑制剂的3-芳基-5-吲唑-1,2,4-恶二唑衍生物的发现和构效关系研究。两种最有希望的化合物4g和4h在体外抑制HIF-1转录,其IC 50值分别为0.62和0.55μM ,并且它们在异种移植肿瘤中显示出比YC-1更有效的HIF-1抑制作用,YC-1是靶向HIF的潜在抗癌药物-1。此外,它们还显着防止体外低氧驱动的SKOV3细胞迁移和体内肿瘤转移。对该机理的进一步研究表明,这两种抑制剂可以降低HIF-1α和VEGF的表达。这些结果表明,我们新合成的HIF-1抑制剂4g和4h是治疗肿瘤转移的潜在治疗剂。