Discovery of a novel 2,5-dihydroxycinnamic acid-based 5-lipoxygenase inhibitor that induces apoptosis and may impair autophagic flux in RCC4 renal cancer cells
作者:Ayyoub Selka、Jérémie A. Doiron、Pierre Lyons、Sonia Dastous、Alison Chiasson、Marc Cormier、Sandra Turcotte、Marc E. Surette、Mohamed Touaibia
DOI:10.1016/j.ejmech.2019.06.060
日期:2019.10
showed that the 2,5-dihydroxycinnamic acid phenethyl ester (10b) was the best 5-LO inhibitor and was 7-fold more potent than Zileuton (1), the only clinically approved 5-LO inhibitor. 2,5-Dihydroxy substitution was more favorable to 5-LO inhibition since compound 10b is twice as active as CAPE (2) which is a 3,4-dihydroxylcinnamic acid ester. Meanwhile, 10b reduced the cell viability of renal cancer
近年来,抑制白三烯(LTs)生物合成的关键酶5-脂氧合酶(5-LO)引起了越来越高的热情,成为抗炎和抗肿瘤的策略。根据我们以前的研究,我们合成了一系列可能是5-LO抑制剂的基于二羟基肉桂酸的类似物。测量了LT在HEK293细胞和多形核白细胞(PMNL)中的生物合成抑制作用,并在肾细胞癌(RCC)中研究了其抗肿瘤活性。结果表明,2,5-二羟基肉桂酸苯乙酯(10b)是最好的5-LO抑制剂,并且其效力是唯一被临床批准的5-LO抑制剂Zileuton(1)的7倍。由于化合物10b, 2,5-二羟基取代更有利于5-LO抑制其活性是作为3,4-二羟基肉桂酸酯的CAPE(2)的两倍。同时,10b降低了肾癌细胞的细胞生存力,并且对缺乏Von Hippel-Lindau(VHL)肿瘤抑制基因的RCC4和786.0细胞更具选择性。至于潜在的细胞死亡机制,10b诱导VHL缺失的RCC4细胞凋亡。此外,LC3B和