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柚皮苷通过 IIS 和 MAPK 延长寿命并延缓衰老。

Naringenin prolongs lifespan and delays aging mediated by IIS and MAPK in .

机构信息

State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology (TUST), Tianjin, China.

College of Life Sciences, Fujian Normal University, Fuzhou, China.

出版信息

Food Funct. 2021 Nov 29;12(23):12127-12141. doi: 10.1039/d1fo02472h.

Abstract

Naringenin (NN) is one of the most abundant flavonoids in citrus and grapefruits and has been shown to have antioxidant properties . The purpose of the study is to examine the antioxidant and anti-aging activities of NN in , and to further explore the molecular mechanism. The results showed that NN enhanced the lifespan under normal and oxidative stress induced by HO. After treatment with NN, locomotion capability was improved and aging pigment accumulation was suppressed. NN also delayed the paralysis and reversed the defective chemotaxis behavior induced by Aβ protein. Meanwhile, the treatment with NN enhanced the activities of antioxidant enzymes and reduced the accumulation of reactive oxygen species (ROS) and malondialdehyde (MDA) content. The possible targets and pathways interacting with NN were predicted by network pharmacology. Real-time PCR analysis indicated that NN upregulated the expression levels of , and , downregulated the expression levels of , and , and further activated , , , and . Moreover, the selected mutant strains were used and molecular docking was conducted to further suggest that IIS and MAPK pathways could be involved in the NN-mediated longevity-promoting effect.

摘要

柚皮素(NN)是柑橘和葡萄柚中含量最丰富的类黄酮之一,具有抗氧化特性。本研究旨在探讨 NN 在秀丽隐杆线虫中的抗氧化和抗衰老活性,并进一步探索其分子机制。结果表明,NN 增强了 HO 诱导的正常和氧化应激下的寿命。经 NN 处理后,运动能力得到提高,衰老色素积累受到抑制。NN 还延迟了 Aβ 蛋白诱导的瘫痪,并逆转了缺陷的趋化行为。同时,NN 处理增强了抗氧化酶的活性,降低了活性氧(ROS)和丙二醛(MDA)含量的积累。通过网络药理学预测了与 NN 相互作用的可能靶点和途径。实时 PCR 分析表明,NN 上调了 、 、 、 、 和 的表达水平,下调了 、 、 和 的表达水平,并进一步激活 、 、 、 和 。此外,还选用了选定的突变株进行了分子对接,进一步表明 IIS 和 MAPK 途径可能参与 NN 介导的延长寿命作用。

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