Ilexgenin A Alleviates Myocardial Ferroptosis in Response to Ischemia Reperfusion Injury via the SIRT1 Pathway.

IF 6.1 2区 医学 Q1 CHEMISTRY, MEDICINAL Phytotherapy Research Pub Date : 2024-12-19 DOI:10.1002/ptr.8414
Bo Yang, Xiao-Yu Jue, Shang-Fei Luo, Zhang-Bin Tan, Li-Ning Yang, Yun-Ting Feng, Yong-Zhen Tan, Bin Liu, Jing-Zhi Zhang, Bo Deng, Wei-Wei Wu, Shuang-Wei Zhang
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Abstract

Myocardial ischemia-reperfusion (I/R) injury has emerged as an increasingly serious cardiovascular health concern worldwide, with ferroptosis playing a pivotal role as the underlying pathogenic process. This study aimed to investigate the pharmacological effect and mechanism of Ilexgenin A on cardiomyocyte ferroptosis induced by myocardial I/R injury. In vivo, we established a murine anterior descending artery ligation/recanalization model to evaluate the cardioprotective effect of Ilexgenin A. Bioinformatics analysis, molecular docking, and Surface Plasmon Resonance imaging were conducted to predict the pharmacological targets of Ilexgenin A. In vitro experiments, the neonatal rat cardiomyocytes (NRCMs) were utilized to further explore the mechanism of Ilexgenin A in inhibiting ferroptosis using chemiluminescence and immunofluorescence staining, electron microscopy, biochemical assay, RT-qPCR, western blotting, and so on. The results showed that Ilexgenin A protected against cardiac dysfunction, ameliorated myocardial ferroptosis and mitochondrial damage induced by murine myocardial I/R injury via the silence information regulator 1 (SIRT1) pathway, the trend was consistently observed in NRCMs. Additionally, the SIRT1 knockdown by siRNA delivery partially abrogated the beneficial effects of Ilexgenin A on ameliorating mitochondrial damage, and then aggravated erastin-induced ferroptosis in NRCMs. Overall, Our research demonstrated that the inhibition of ferroptosis via the SIRT1 pathway was one of the mechanisms by which Ilexgenin A exerted cardioprotective effect.

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来源期刊
Phytotherapy Research
Phytotherapy Research 医学-药学
CiteScore
12.80
自引率
5.60%
发文量
325
审稿时长
2.6 months
期刊介绍: Phytotherapy Research is an internationally recognized pharmacological journal that serves as a trailblazing resource for biochemists, pharmacologists, and toxicologists. We strive to disseminate groundbreaking research on medicinal plants, pushing the boundaries of knowledge and understanding in this field. Our primary focus areas encompass pharmacology, toxicology, and the clinical applications of herbs and natural products in medicine. We actively encourage submissions on the effects of commonly consumed food ingredients and standardized plant extracts. We welcome a range of contributions including original research papers, review articles, and letters. By providing a platform for the latest developments and discoveries in phytotherapy, we aim to support the advancement of scientific knowledge and contribute to the improvement of modern medicine.
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