姜黄素防治缺血性脑卒中的作用机制:网络药理学和分子动力学研究。

Curcumin's mechanism of action against ischemic stroke: A network pharmacology and molecular dynamics study.

机构信息

College of Rehabilitation Medicine, Weifang Medical University, Weifang, China.

Department of Traditional Chinese Medicine, Shandong University of Traditional Chinese, Jinan, China.

出版信息

PLoS One. 2023 Jan 4;18(1):e0280112. doi: 10.1371/journal.pone.0280112. eCollection 2023.

Abstract

Ischemic stroke (IS) is one of the major global causes of death and disability. Because blood clots block the neural arteries provoking ischemia and hypoxia in the brain tissue, IS results in irreversible neurological damage. Available IS treatments are currently limited. Curcumin has gained attention for many beneficial effects after IS, including neuroprotective and anti-inflammatory; however, its precise mechanism of action should be further explored. With network pharmacology, molecular docking, and molecular dynamics (MD), this study aimed to comprehensively and systematically investigate the potential targets and molecular mechanisms of curcumin on IS. We screened 1096 IS-related genes, 234 potential targets of curcumin, and 97 intersection targets. KEGG and GO enrichment analyses were performed on these intersecting targets. The findings showed that the treatment of IS using curcumin is via influencing 177 potential signaling pathways (AGE-RAGE signaling pathway, p53 signaling pathway, necroptosis, etc.) and numerous biological processes (the regulation of neuronal death, inflammatory response, etc.), and the AGE-RAGE signaling pathway had the largest degree of enrichment, indicating that it may be the core pathway. We also constructed a protein-protein interaction network and a component-target-pathway network using network pharmacology. From these, five key targets were screened: NFKB1, TP53, AKT1, STAT3, and TNF. To predict the binding conformation and intermolecular affinities of the key targets and compounds, molecular docking was used, whose results indicated that curcumin exhibited strong binding activity to the key targets. Moreover, 100 ns MD simulations further confirmed the docking findings and showed that the curcumin-protein complex could be in a stable state. In conclusion, curcumin affects multiple targets and pathways to inhibit various important pathogenic mechanisms of IS, including oxidative stress, neuronal death, and inflammatory responses. This study offers fresh perspectives on the transformation of curcumin to clinical settings and the development of IS therapeutic agents.

摘要

缺血性脑卒中(IS)是全球主要的死亡和残疾原因之一。由于血栓阻塞神经动脉,导致脑组织缺血缺氧,IS 会导致不可逆转的神经损伤。目前可用的 IS 治疗方法有限。姜黄素因其在 IS 后具有许多有益的作用而受到关注,包括神经保护和抗炎作用;然而,其确切的作用机制仍需进一步探索。本研究采用网络药理学、分子对接和分子动力学(MD)方法,全面系统地研究姜黄素治疗 IS 的潜在靶点和分子机制。我们筛选了 1096 个 IS 相关基因、234 个姜黄素潜在靶点和 97 个交集靶点。对这些交集靶点进行了 KEGG 和 GO 富集分析。结果表明,姜黄素治疗 IS 是通过影响 177 个潜在信号通路(AGE-RAGE 信号通路、p53 信号通路、坏死性凋亡等)和众多生物学过程(神经元死亡的调节、炎症反应等),其中 AGE-RAGE 信号通路的富集程度最大,表明其可能是核心通路。我们还利用网络药理学构建了蛋白质-蛋白质相互作用网络和组件-靶点-通路网络。从中筛选出 5 个关键靶点:NFKB1、TP53、AKT1、STAT3 和 TNF。为了预测关键靶点和化合物的结合构象和分子间亲和力,我们采用了分子对接,结果表明姜黄素对关键靶点表现出较强的结合活性。此外,100 ns MD 模拟进一步证实了对接结果,并表明姜黄素-蛋白复合物能够处于稳定状态。总之,姜黄素通过影响多个靶点和通路来抑制 IS 的多种重要致病机制,包括氧化应激、神经元死亡和炎症反应。本研究为姜黄素向临床转化和开发 IS 治疗药物提供了新的视角。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f3ca/9812305/3b5bf15f67db/pone.0280112.g001.jpg

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