当前位置: X-MOL 学术Cell. Signal. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
The role of STAT3/mTOR-regulated autophagy in angiotensin II-induced senescence of human glomerular mesangial cells.
Cellular Signalling ( IF 4.4 ) Pub Date : 2018-10-30 , DOI: 10.1016/j.cellsig.2018.10.021
Shuang Yang 1 , Dan Sun 1 , Lining Wang 1 , Xiuying Wang 1 , Mai Shi 1 , Xue Jiang 1 , Xinran Gao 1
Affiliation  

The kidney is one of the fastest-aging organs, and renal senescence has become a major disease affecting human health. Renal cellular senescence is regulated by the joint action of multiple signal transduction pathways. The previous study by our research group found that the Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) pathway was involved in angiotensin II (Ang II)-induced senescence of human glomerular mesangial cells. However, the unique role of STAT3 activation in Ang II-induced senescence of human glomerular mesangial cells and the underlying mechanisms remain unclear. The present study revealed that Ang II induced premature senescence, promoted autophagy and activated oxidative stress responses in human glomerular mesangial cells. Autophagy mediates the senescence-inducing effect of Ang II on human glomerular mesangial cells. Inhibition of oxidative stress with N-acetylcysteine (NAC) or interference with STAT3/mechanistic target of rapamycin (mTOR) activity with S3I-201 or STAT3-siRNA suppressed autophagy to a certain extent, which was conducive to delaying the senescence of glomerular mesangial cells. The antioxidant probucol reduced autophagy in human glomerular mesangial cells and alleviated the aging process of these cells by regulating STAT3/mTOR. These findings identify a role of STAT3/mTOR-regulated autophagy in Ang II-induced senescence of human glomerular mesangial cells and may provide a theoretical basis for anti-senescence treatment in clinical practice.

中文翻译:

STAT3 / mTOR调节的自噬在血管紧张素II诱导的人肾小球系膜细胞衰老中的作用。

肾脏是衰老最快的器官之一,肾脏衰老已成为影响人类健康的主要疾病。肾细胞衰老受多种信号转导途径的联合作用调节。我们的研究小组先前的研究发现,Janus激酶2(JAK2)/信号转导子和转录激活因子3(STAT3)通路与血管紧张素II(Ang II)诱导的人肾小球系膜细胞衰老有关。然而,STAT3激活在Ang II诱导的人肾小球系膜细胞衰老中的独特作用及其潜在机制仍不清楚。本研究表明,Ang II诱导人肾小球系膜细胞中的过早衰老,促进自噬和激活氧化应激反应。自噬介导Ang II对人肾小球系膜细胞的衰老诱导作用。用S3I-201或STAT3-siRNA抑制N-乙酰半胱氨酸(NAC)氧化应激或干扰STAT3 /雷帕霉素机制靶点(mTOR)活性在一定程度上抑制了自噬,这有利于延迟肾小球系膜细胞的衰老。 。抗氧化剂普罗布考可通过调节STAT3 / mTOR减少人肾小球系膜细胞的自噬,并减轻这些细胞的衰老过程。这些发现确定了STAT3 / mTOR调节的自噬在Ang II诱导的人肾小球系膜细胞衰老中的作用,并可能为临床实践中的抗衰老治疗提供理论依据。用S3I-201或STAT3-siRNA抑制N-乙酰半胱氨酸(NAC)氧化应激或干扰STAT3 /雷帕霉素机制靶点(mTOR)活性在一定程度上抑制了自噬,这有利于延迟肾小球系膜细胞的衰老。 。抗氧化剂普罗布考可通过调节STAT3 / mTOR减少人肾小球系膜细胞的自噬并减轻这些细胞的衰老过程。这些发现确定了STAT3 / mTOR调节的自噬在Ang II诱导的人肾小球系膜细胞衰老中的作用,并可能为临床实践中的抗衰老治疗提供理论依据。用S3I-201或STAT3-siRNA抑制N-乙酰半胱氨酸(NAC)氧化应激或干扰STAT3 /雷帕霉素机制靶点(mTOR)活性在一定程度上抑制了自噬,这有利于延迟肾小球系膜细胞的衰老。 。抗氧化剂普罗布考可通过调节STAT3 / mTOR减少人肾小球系膜细胞的自噬,并减轻这些细胞的衰老过程。这些发现确定了STAT3 / mTOR调节的自噬在Ang II诱导的人肾小球系膜细胞衰老中的作用,并可能为临床实践中的抗衰老治疗提供理论依据。抗氧化剂普罗布考可通过调节STAT3 / mTOR减少人肾小球系膜细胞的自噬,并减轻这些细胞的衰老过程。这些发现确定了STAT3 / mTOR调节的自噬在Ang II诱导的人肾小球系膜细胞衰老中的作用,并可能为临床实践中的抗衰老治疗提供理论依据。抗氧化剂普罗布考可通过调节STAT3 / mTOR减少人肾小球系膜细胞的自噬,并减轻这些细胞的衰老过程。这些发现确定了STAT3 / mTOR调节的自噬在Ang II诱导的人肾小球系膜细胞衰老中的作用,并可能为临床实践中的抗衰老治疗提供理论依据。
更新日期:2018-10-30
down
wechat
bug