Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Nanjing Lishui District Hospital of Traditional Chinese Medicine, Nanjing 211200, China.
Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Warshel Institute for Computational Biology, School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, China.
Int J Biol Macromol. 2024 Oct;278(Pt 1):134363. doi: 10.1016/j.ijbiomac.2024.134363. Epub 2024 Jul 31.
Acetyl-coenzyme A carboxylase (ACC) and diacylglycerol acyltransferase 2 (DGAT2) are recognized as potential therapeutic targets for nonalcoholic fatty liver disease (NAFLD). Inhibitors targeting ACC and DGAT2 have exhibited the capacity to reduce hepatic fat in individuals afflicted with NAFLD. However, there are no reports of dual inhibitors targeting ACC and DGAT2 for the treatment of NAFLD. Here, we aimed to identify potential dual inhibitors of ACC and DGAT2 using an integrated in silico approach. Machine learning-based virtual screening of commercial molecule databases yielded 395,729 hits, which were subsequently subjected to molecular docking aimed at both the ACC and DGAT2 binding sites. Based on the docking scores, nine compounds exhibited robust interactions with critical residues of both ACC and DGAT2, displaying favorable drug-like features. Molecular dynamics simulations (MDs) unveiled the substantial impact of these compounds on the conformational dynamics of the proteins. Furthermore, binding free energy assessments highlighted the notable binding affinities of specific compounds (V003-8107, G340-0503, Y200-1700, E999-1199, V003-6429, V025-4981, V006-1474, V025-0499, and V021-8916) to ACC and DGAT2. The compounds proposed in this study, identified using a multifaceted computational strategy, warrant experimental validation as potential dual inhibitors of ACC and DGAT2, with implications for the future development of novel drugs targeting NAFLD.
乙酰辅酶 A 羧化酶(ACC)和二酰基甘油酰基转移酶 2(DGAT2)被认为是治疗非酒精性脂肪性肝病(NAFLD)的潜在治疗靶点。针对 ACC 和 DGAT2 的抑制剂已显示出减少 NAFLD 患者肝脂肪的能力。然而,尚无针对 ACC 和 DGAT2 的双重抑制剂用于治疗 NAFLD 的报道。在这里,我们旨在使用集成的计算方法来鉴定潜在的 ACC 和 DGAT2 双重抑制剂。基于机器学习的商业分子数据库虚拟筛选产生了 395729 个命中物,随后对它们进行了分子对接,以针对 ACC 和 DGAT2 的结合位点。根据对接得分,有 9 种化合物与 ACC 和 DGAT2 的关键残基表现出稳健的相互作用,显示出良好的类药性特征。分子动力学模拟(MDs)揭示了这些化合物对蛋白质构象动力学的重大影响。此外,结合自由能评估突出了特定化合物(V003-8107、G340-0503、Y200-1700、E999-1199、V003-6429、V025-4981、V006-1474、V025-0499 和 V021-8916)对 ACC 和 DGAT2 的显著结合亲和力。本研究中提出的使用多方面计算策略鉴定的化合物值得进一步进行实验验证,以作为 ACC 和 DGAT2 的潜在双重抑制剂,为未来针对 NAFLD 的新型药物的开发提供了可能。