数字农科院2.0

10-Hydroxydec-2-Enoic Acid Reduces Hydroxyl Free Radical-Induced Damage to Vascular Smooth Muscle Cells by Rescuing Protein and Energy Metabolism

文献类型： 外文期刊

作者： Fan, Pei;Sha, Fangfang;Ma, Chuan;Wei, Qiaohong;Zhou, Yaqi;Shi, Jing;Fu, Jiaojiao;Zhang, Lu;Han, Bin;Li, Jianke

作者机构：

关键词： royal jelly;10-hydroxydec-2-enoic acid;hydroxyl radical;vascular smooth muscle cell;proteomics

期刊名称： FRONTIERS IN NUTRITION

ISSN： 2296-861X

年卷期： 2022 年 9 卷

页码：

收录情况： SCIE（2022版）

摘要： 10-Hydroxydec-2-enoic acid (10-HDA), an unsaturated hydroxyl fatty acid from the natural food royal jelly, can protect against cell and tissue damage, yet the underlying mechanisms are still unexplored. We hypothesized that the neutralization of the hydroxyl free radical (center dot OH), the most reactive oxygen species, is an important factor underlying the cytoprotective effect of 10-HDA. In this study, we found that the center dot OH scavenging rate by 10-HDA (2%, g/ml) was more than 20%, which was achieved through multiple-step oxidization of the -OH group and C=C bond of 10-HDA. Moreover, 10-HDA significantly enhanced the viability of vascular smooth muscle cells (VSMCs) damaged by center dot OH (P < 0.01), significantly attenuated center dot OH-derived malondialdehyde production that represents cellular lipid peroxidation (P < 0.05), and significantly increased the glutathione levels in center dot OH-stressed VSMCs (P < 0.05), indicating the role of 10-HDA in reducing center dot OH-induced cytotoxicity. Further proteomic analyses of VSMCs identified 195 proteins with decreased expression by center dot OH challenge that were upregulated by 10-HDA rescue and were primarily involved in protein synthesis (such as translation, protein transport, ribosome, and RNA binding) and energy metabolism (such as fatty acid degradation and glycolysis/gluconeogenesis). Taken together, these findings indicate that 10-HDA can effectively promote cell survival by antagonizing center dot OH-induced injury in VSMCs. To the best of our knowledge, our results provide the first concrete evidence that 10-HDA-scavenged center dot OH could be a potential pharmacological application for maintaining vascular health.

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