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The transplantation of rapamycin-treated senescent human mesenchymal stem cells with enhanced proangiogenic activity promotes neovascularization and ischemic limb salvage in mice.
Cao, Yu-Lin; Chen, Wen-Lan; Lei, Qian; Gao, Fei; Ren, Wen-Xiang; Chen, Li; Wang, Hong-Xiang; Chen, Ting; Li, Qiu-Bai; Chen, Zhi-Chao.
Afiliação
  • Cao YL; Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
  • Chen WL; Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
  • Lei Q; Department of Laboratory Medicine, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China.
  • Gao F; Department of Hematology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China.
  • Ren WX; Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
  • Chen L; Department of Hematology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China.
  • Wang HX; Department of Hematology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China.
  • Chen T; Hubei Engineering Research Center for Application of Extracelluar Vesicle, Hubei University of Science and Technology, Xianning, 437100, China.
  • Li QB; Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. qiubaili@hust.edu.cn.
  • Chen ZC; Hubei Engineering Research Center for Application of Extracelluar Vesicle, Hubei University of Science and Technology, Xianning, 437100, China. qiubaili@hust.edu.cn.
Acta Pharmacol Sin ; 43(11): 2885-2894, 2022 Nov.
Article em En | MEDLINE | ID: mdl-35365781
Few therapies can reverse the proangiogenic activity of senescent mesenchymal stromal/stem cells (MSCs). In this study, we investigated the effects of rapamycin on the proangiogenic ability of senescent human umbilical cord MSCs (UCMSCs). An in vitro replicative senescent cell model was established in cultured UCMSCs. We found that late passage (P25 or later) UCMSCs (LP-UCMSCs) exhibited impaired proangiogenic abilities. Treatment of P25 UCMSCs with rapamycin (900 nM) reversed the senescent phenotype and notably enhanced the proangiogenic activity of senescent UCMSCs. In a nude mouse model of hindlimb ischemia, intramuscular injection of rapamycin-treated P25 UCMSCs into the ischemic limb significantly promoted neovascularization and ischemic limb salvage. We further analyzed the changes in the expression of angiogenesis-associated genes in rapamycin-primed MSCs and found higher expression of several genes related to angiogenesis, such as VEGFR2 and CTGF/CCN2, in primed cells than in unprimed MSCs. Taken together, our data demonstrate that rapamycin is a potential drug to restore the proangiogenic activity of senescent MSCs, which is of importance in treating ischemic diseases and tissue engineering.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Transplante de Células-Tronco Mesenquimais / Células-Tronco Mesenquimais Limite: Animals / Humans Idioma: En Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Transplante de Células-Tronco Mesenquimais / Células-Tronco Mesenquimais Limite: Animals / Humans Idioma: En Ano de publicação: 2022 Tipo de documento: Article