Discovery of 3-(Indol-5-yl)-indazole Derivatives as Novel Myeloid Differentiation Protein 2/Toll-like Receptor 4 Antagonists for Treatment of Acute Lung Injury
作者:Zhiguo Liu、Lingfeng Chen、Pengtian Yu、Yali Zhang、Bo Fang、Chao Wu、Wu Luo、Xianxin Chen、Chenglong Li、Guang Liang
DOI:10.1021/acs.jmedchem.9b00316
日期:2019.6.13
responses. Targeting the myeloid differentiation protein 2/toll-like receptor 4 (MD2-TLR4) complex may be a promising way to treat Gram-negative bacterial-induced inflammatory disorders. In this study, we report the design and synthesis of a new series of 3-(indol-5-yl)-indazoles, which were evaluated for their anti-inflammatory activities in macrophages. Among the analogues generated, the promising 3-(indol-5-yl)-indazole
急性肺损伤(ALI)通常是由全身炎症反应引起的。靶向骨髓分化蛋白2 / toll样受体4(MD2-TLR4)复合物可能是治疗革兰氏阴性细菌引起的炎症性疾病的一种有前途的方法。在这项研究中,我们报告了一系列新的3-(吲哚-5-基)-吲唑的设计和合成,对它们在巨噬细胞中的抗炎活性进行了评估。在产生的类似物中,有希望的3-(吲哚-5-基)-吲唑类似物22m抑制脂多糖(LPS)诱导的巨噬细胞中肿瘤坏死因子α(TNF-α)和白细胞介素6(IL-6)的表达。 IC50值分别为0.89和0.53μM。然后在抑制LPS诱导的炎症反应中,将化合物22m鉴定为MD2-TLR4拮抗剂。体内给药22m可以显着抑制LPS攻击小鼠的肺组织巨噬细胞浸润并改善其组织病理学变化。我们的研究确定了一种新型的3-(吲哚-5-基)-吲唑22m作为有效的MD2-TLR4抑制剂,为将来开发用于治疗ALI的抗炎药奠定了基础。