Li Xiang, Zheng Mingzhi, Hu Jue, Yang Yuanxiao, Lu Linhuizi, Zhao Qinqin, Fan Xiaohui
School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, 311399, China.
Department of Clinical Medicine, Hangzhou Medical College, Hangzhou, 311399, China.
Comput Biol Med. 2023 Oct 18;167:107599. doi: 10.1016/j.compbiomed.2023.107599.
BACKGROUND: Mitochondria play central role in cardiac energy metabolism modulations. Cardiac energy metabolism could be potential therapeutic target for the treatment of ischemic heart disease (IHD). We proposed strategy to analyze the regulation modes of astragaloside IV (AST) by targeting mitochondrial-energy-metabolism (MEM) in IHD based on transcriptome, network analysis, molecular docking (MD) and western blot (WB). METHOD: IHD-associated genes and AST potential targets were collected from databases and references. MEM-related genes were obtained from MitoProteome. Cytoscape was applied to construct networks, present visualization, and conduct KEGG pathway enrichment. AST regulated energy-metabolism-associated-IHD-network (AEIN) was created, and reverse rates calculated from network analysis of transcriptome from rat myocardial infarction experiments were assigned to AEIN. Binding affinities and modes were evaluated by MD with further WB validation of targets expression. RESULTS: The study identified 1713 IHD-related genes, 528 MEM-related genes, and 169 potential AST target genes. 21 AST targets were obtained from AEIN, while the top three targets Akt1, ERK1/2 and RPS6KB1 showed good binding affinities with AST (-10, -9.8, -8.6 and -8.8 kcal/mol for Akt1, Erk1, Erk2 and RPS6KB1 respectively). AST reversed the decreased expressions of three targets against OGD injury of H9c2. 13 MEM-associated signaling pathways, including HIF-1, and PI3K-Akt signaling pathways, were retrieved showing certain inter-relationships both in compositions and functions. CONCLUSIONS: AST may have coordinated roles among multi-pathways in regulating MEM homeostasis in IHD. While further deep investigations should be designed and conducted to decipher and pinpoint the multi-target, multi-pathway modes of action of AST in the future.
背景:线粒体在心脏能量代谢调节中起核心作用。心脏能量代谢可能是治疗缺血性心脏病(IHD)的潜在治疗靶点。我们提出了基于转录组、网络分析、分子对接(MD)和蛋白质免疫印迹(WB)分析黄芪甲苷(AST)在IHD中靶向线粒体能量代谢(MEM)的调控模式的策略。 方法:从数据库和参考文献中收集IHD相关基因和AST潜在靶点。从线粒体蛋白质组中获取MEM相关基因。应用Cytoscape构建网络、呈现可视化并进行KEGG通路富集分析。创建AST调节的能量代谢相关IHD网络(AEIN),并将大鼠心肌梗死实验转录组网络分析计算出的逆转率分配给AEIN。通过MD评估结合亲和力和模式,并通过WB进一步验证靶点表达。 结果:该研究鉴定出1713个IHD相关基因、528个MEM相关基因和169个潜在AST靶基因。从AEIN中获得21个AST靶点,而前三个靶点Akt1、ERK1/2和RPS6KB1与AST表现出良好的结合亲和力(Akt1、Erk1、Erk2和RPS6KB1分别为-10、-9.8、-8.6和-8.8 kcal/mol)。AST逆转了H9c2细胞氧糖剥夺损伤后三个靶点表达的降低。检索到13条MEM相关信号通路,包括HIF-1和PI3K-Akt信号通路,它们在组成和功能上均显示出一定的相互关系。 结论:AST在调节IHD中MEM稳态的多途径中可能具有协同作用。未来应设计并进行进一步深入研究,以解读和明确AST的多靶点、多途径作用模式。
Front Pharmacol. 2025-3-26