Cholesterol Retards Senescence in Bone Marrow Mesenchymal Stem Cells by Modulating Autophagy and ROS/p53/p21(Cip1/Waf1) Pathway.
Cholesterol Retards Senescence in Bone Marrow Mesenchymal Stem Cells by Modulating Autophagy and ROS/p53/p21(Cip1/Waf1) Pathway.
复制标题
胆固醇通过调节自噬和 ROS/p53/p21(Cip1/Waf1) 途径延缓骨髓间充质干细胞的衰老。
DOI:
10.1155/2016/7524308
复制
发表时间:
2016
影响因子:
--
通讯作者:
Lu Y
中科院分区:
文献类型:
--
作者:
Zhang M;Du Y;Lu R;Shu Y;Zhao W;Li Z;Zhang Y;Liu R;Yang T;Luo S;Gao M;Zhang Y;Zhang G;Liu J;Lu Y
In the present study, we demonstrated that bone marrow mesenchymal stem cells (BMSCs) of the 3rd passage displayed the senescence-associated phenotypes characterized with increased activity of SA-β-gal, altered autophagy, and increased G1 cell cycle arrest, ROS production, and expression of p53 and p21Cip1/Waf1 compared with BMSCs of the 1st passage. Cholesterol (CH) reduced the number of SA-β-gal positive cells in a dose-dependent manner in aging BMSCs induced by H2O2 and the 3rd passage BMSCs. Moreover, CH inhibited the production of ROS and expression of p53 and p21Cip1/Waf1 in both cellular senescence models and decreased the percentage of BMSCs in G1 cell cycle in the 3rd passage BMSCs. CH prevented the increase in SA-β-gal positive cells induced by RITA (reactivation of p53 and induction of tumor cell apoptosis, a p53 activator) or 3-MA (3-methyladenine, an autophagy inhibitor). Our results indicate that CH not only is a structural component of cell membrane but also functionally contributes to regulating cellular senescence by modulating cell cycle, autophagy, and the ROS/p53/p21Cip1/Waf1 signaling pathway.
登录
查看更多内容
影响因子:
7.5
作者:
Young, Andrew R. J.;Narita, Masashi
通讯作者:
Narita, Masashi
影响因子:
18.2
作者:
Campisi J
通讯作者:
Campisi J
影响因子:
5
作者:
Cai Benzhi;Zhao Limei;Yang Baofeng
通讯作者:
Yang Baofeng
影响因子:
2.7
作者:
Chen, Dong-Feng;Zhang, Hai-Ling;Hu, Zi-Chun
通讯作者:
Hu, Zi-Chun
影响因子:
3.7
作者:
Zhao, Yu-Feng;Wang, Li;Chen, Chen
通讯作者:
Chen, Chen