Discovery of Matrinic Thiadiazole Derivatives as a Novel Family of Anti-Liver Fibrosis Agents via Repression of the TGFβ/Smad Pathway
作者:Tianyu Niu、Weixiao Niu、Yunyang Bao、Ting Liu、Danqing Song、Yinghong Li、Hongwei He
DOI:10.3390/molecules23071644
日期:——
A series of novel matrinic thiadiazole derivatives were designed, synthesized and evaluated for their inhibitory effect on COL1A1 promotor. The SAR indicated that: (i) the introduction of a thiadiazole on the 11-side chain was beneficial for activity; (ii) a 12-N-benzyl moiety was favorable for activity. Among them, compound 6n displayed a high activity with an inhibitory rate of 39.7% at a concentration of 40 μM. It also effectively inhibited the expression of two representative collagen proteins (COL1A1 and α-SMA) on both the mRNA and protein levels and showed a high safety profile in vivo, indicating its great promise as an anti-liver fibrosis agent. Further study indicated that it might repress hepatic fibrogenesis via the TGFβ/Smad pathway. This study provided powerful information for further strategic optimization and the top compound 6n was selected for further study as an ideal liver fibrosis lead for next investigation.
设计、合成并评估了一系列新型母体噻二唑衍生物对COL1A1启动子的抑制作用。结构活性关系表明:(i) 在11位侧链上引入噻二唑有利于活性;(ii) 12-N-苄基部分有利于活性。其中,化合物6n表现出高活性,在40 μM浓度下抑制率为39.7%。它还能有效抑制两种代表性胶原蛋白(COL1A1和α-SMA)在mRNA和蛋白质水平的表达,并在体内显示出高安全性,表明其在抗肝纤维化药物方面具有巨大潜力。进一步研究显示,它可能通过TGFβ/Smad途径抑制肝纤维化。这项研究为进一步战略优化提供了有力信息,选择化合物6n作为理想的肝纤维化先导物进行进一步研究。