An article SIRT3 Transfection of Aged Human Bone Marrow-Derived Mesenchymal Stem Cells Improves Cell Therapy-Mediated Myocardial Repair WOS:000529988600001 published article about TRANSPLANTATION; SURVIVAL; HEART; GENE; MITOCHONDRIA; METABOLISM; ACTIVATION; INFARCTION; EFFICACY; HOMOLOG in [Zhang, Dong-Yang; Xu, Rong-Jian; Jiao, Wen-Jie] Qingdao Univ, Affiliated Hosp, Dept Thorac Surg, Qingdao 266000, Peoples R China; [Zhang, Dong-Yang; Gao, Tong; Sun, Lu; Zhang, Chun-Feng; Bai, Long; Chen, Wei; Liu, Kai-Yu; Zhou, Yang; Jiao, Xuan; Zhang, Gui-Huan; Tian, Hai] Harbin Med Univ, Affiliated Hosp 2, Future Med Lab, Harbin, Peoples R China; [Gao, Tong; Sun, Lu; Zhang, Chun-Feng; Bai, Long; Chen, Wei; Liu, Kai-Yu; Zhou, Yang; Jiao, Xuan; Zhang, Gui-Huan; Tian, Hai] Harbin Med Univ, Affiliated Hosp 2, Dept Cardiovasc Surg, Harbin 150086, Peoples R China; [Guo, Rui-Lin; Li, Jing-Xuan; Gao, Ying] Harbin Med Univ, Clin Coll 2, Harbin, Peoples R China in 2020.0, Cited 37.0. HPLC of Formula: C2H4N4. The Name is 1H-1,2,4-Triazol-5-amine. Through research, I have a further understanding and discovery of 61-82-5
Sirtuin 3 (SIRT3) is a deacetylase important for antioxidant protection, cell longevity, and aging. We hypothesized that SIRT3 improve oxidative resistance of aged cells and improve cell therapy in aged patients. In vitro, the proliferation and oxidative resistance of human mesenchymal stem cells (hMSCs) significantly declined with age. The expression and activity of antioxidant enzymes, including catalase (CAT) and manganese superoxide dismutase (MnSOD), increased after transfection of SIRT3 in hMSCs from older donors (O-hMSCs). The protein level of Forkhead box O3a (FOXO3a) in nucleus increased after SIRT3 overexpression. The antioxidant capacity of O-hMSCs increased after SIRT3 overexpression. 3-Amino-1,2,4-triazole (3-AT, CAT inhibitor) or diethyldithiocarbamate (DETC, SOD inhibitor) that was used to inhibit CAT or SOD activity significantly blocked the antioxidant function of SIRT3. When two inhibitors were used together, the antioxidant function of SIRT3 almost disappeared. Following myocardial infarction and intramyocardial injections of O-hMSCs in rats in vivo, the survival rate of O-hMSCs increased by SIRT3 transfection. The cardiac function of rats was improved after SIRT3-overexpressed O-hMSC transplantation. The infarct size, collagen content, and expression levels of matrix metalloproteinase 2 (MMP2) and MMP9 decreased. Besides, the protein level of vascular endothelial growth factor A and vascular density increased after cell transplantation with SIRT3-modified O-hMSCs. These results indicate that damage resistance of hMSCs decline with age and SIRT3 might protect O-hMSCs against oxidative damage by activating CAT and MnSOD through transferring FOXO3a into nucleus. Meanwhile, the therapeutic effect of aged hMSC transplantation can be improved by SIRT3 overexpression.
Welcome to talk about 61-82-5, If you have any questions, you can contact Zhang, DY; Gao, T; Xu, RJ; Sun, L; Zhang, CF; Bai, L; Chen, W; Liu, KY; Zhou, Y; Jiao, X; Zhang, GH; Guo, RL; Li, JX; Gao, Y; Jiao, WJ; Tian, H or send Email.. HPLC of Formula: C2H4N4
Reference:
Article; Safari, Niloufar; Shirini, Farhad; Tajik, Hassan; Journal of Molecular Structure; vol. 1201; (2020);,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics