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Isoparvifuran isolated from Dalbergia odorifera attenuates H2O2-induced senescence of BJ cells through SIRT1 activation and AKT/mTOR pathway inhibition
Biochemical and Biophysical Research Communications ( IF 3.1 ) Pub Date : 2020-09-30 , DOI: 10.1016/j.bbrc.2020.09.096
Zengsheng Yin , Raekil Park , Byung-Min Choi

Isoparvifuran is a benzofuran compound isolated from the heartwood of Dalbergia odorifera. Related research reported that isoparvifuran has antioxidant property. However, it is unclear whether isoparvifuran has anti-aging effects. In this research, we established an aging model, hydrogen peroxide (H2O2)-induced BJ cell senescence, to explore the protective effect of isoparvifuran on cell senescence and its related mechanisms. Our results revealed that isoparvifuran obviously attenuated H2O2-induced cell senescence, increased the cell proliferation rate,and reversed senescence-associated molecular markers expression such as cyclin D1, pRb, caveolin-1, ace-p53, p21 and p16. Moreover, isoparvifuran dose and time dependently increased the expression level of Sirtuin 1 (SIRT1) in BJ cells. The inhibition of SIRT1 obviously reversed the reduction of SA-β-gal activity and the alteration of senescence-associated molecular markers induced by isoparvifuran. Additionally, isoparvifuran also inhibited H2O2-induced AKT and S6 phosphorylation and increase of SA-β-gal activity. In summary, isoparvifuran protects BJ cells from H2O2-induced premature senescence, the anti-senescence effect of isoparvifuran is associated with the activation of SIRT1 and the suppression of AKT/mTOR signaling pathway.



中文翻译:

从香叶黄檀中分离出的异帕呋喃通过SIRT1激活和AKT / mTOR途径抑制作用减弱了H 2 O 2诱导的BJ细胞衰老。

异戊呋喃是一种从香檀香中分离的苯并呋喃化合物。相关研究报道,异帕维呋喃具有抗氧化性能。但是,尚不清楚异帕呋喃是否具有抗衰老作用。在本研究中,我们建立了一个过氧化氢(H 2 O 2)诱导的BJ细胞衰老的衰老模型,以探讨异帕维呋喃对细胞衰老的保护作用及其相关机制。我们的结果表明,异帕维呋喃明显减弱了H 2 O 2诱导的细胞衰老,增加细胞增殖速率,并逆转衰老相关分子标志物的表达,如细胞周期蛋白D1,pRb,caveolin-1,ace-p53,p21和p16。此外,异帕维呋喃的剂量和时间依赖性地增加了BJ细胞中Sirtuin 1(SIRT1)的表达水平。SIRT1的抑制作用明显逆转了异帕维呋喃诱导的SA-β-gal活性的降低和衰老相关分子标记的改变。此外,异帕维呋喃还抑制H 2 O 2诱导的AKT和S6磷酸化,并抑制SA-β-gal活性。总之,异帕维呋喃保护BJ细胞免受H 2 O 2侵害诱导的早衰,异帕维呋喃的抗衰老作用与SIRT1的激活和AKT / mTOR信号通路的抑制有关。

更新日期:2020-09-30
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