Activity-guided development of potent and selective toll-like receptor 9 antagonists
作者:Barnali Paul、Oindrila Rahaman、Swarnali Roy、Sourav Pal、Sohal Satish、Ayan Mukherjee、Amrit R. Ghosh、Deblina Raychaudhuri、Roopkatha Bhattacharya、Sunny Goon、Dipyaman Ganguly、Arindam Talukdar
DOI:10.1016/j.ejmech.2018.09.058
日期:2018.11
making this receptor an important therapeutic target, though specific TLR9 antagonists are yet to be available for clinical use. Here we elucidate the importance of specific physiochemical properties through substitution patterns in quinazoline scaffold to achieve potent hTLR9 inhibition at < 50 nM as well as > 600 fold selectivity against hTLR7, another closely related TLR that shares downstream signaling
TLR9是人类pDC和B细胞内体中表达的主要先天免疫受体之一。异常的TLR9激活与几种自身免疫和代谢性疾病以及败血症有关,尽管特定的TLR9拮抗剂尚未可用于临床,但使该受体成为重要的治疗靶标。在这里,我们通过喹唑啉支架中的取代模式阐明特定生理化学特性的重要性,以在<50 nM时实现有效的hTLR9抑制以及对hTLR7的选择性> 600倍的选择性,这是另一种密切相关的TLR,与TLR9共享下游信号传导,但在生理学中起着不同的作用和病理学。使用hPBMC和报道细胞系进行测定。体外ADME资料良好,