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Mesenchymal stem cells over-expressing cxcl12 enhance the radioresistance of the small intestine 期刊论文

编号：

b1635508-1a6d-4a44-86df-e074c5cf642b
作者：

Chang, Pengyu(常鹏宇)#^[1,2]Zhang, Boyin^[3];Shao, Lihong^[2];Song, Wei(宋伟)^[4]Shi, Weiyan^[2];Wang, Libo(王丽波)^[2]Xu, Tiankai^[2];Li, Dong^[5,6];Gao, Xiuzhu^[6,7];Qu, Yaqin(曲雅勤)^[2]Dong, Lihua(董丽华)*^[2]Wang, Jin*^[1,8]
语种：

英文
期刊：

CELL DEATH & DISEASE ISSN：2041-4889 2018 年 9 卷 ; FEB 5
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摘要：

The chemokine C-X-C motif chemokine 12 (CXCL12) greatly impacts various biological processes in mammals, including cell survival, growth and migration. Mesenchymal stem cells (MSCs) are promising tools for carrying foreign genes to treat radiation-induced injuries in the intestinal epithelium. In this study, human adipose-derived MSCs were constructed to over-express the mouse cxcl12 gene to treat such injuries. In vitro, because of the high levels of mouse CXCL12 in conditioned medium produced by mouse cxcl12 gene-modified cells, phosphorylation of Akt at Ser473 and Erk1/2 at Thr202/Thr204 was increased within crypt cells of irradiated organoids compared with unmodified controls. Moreover, intracellular stabilization of beta-catenin was achieved after treatment of mouse cxcl12 gene-modified cells with conditioned medium. As a result, survival of crypt cells was maintained and their proliferation was promoted. When delivering mouse cxcl12 gene-modified cells into irradiated BALB/c nude mice, mice were rescued despite the clearance of cells from the host within 1 week. Irradiated mice that received mouse cxcl12 gene-modified MSCs exhibited reduced serum levels of interleukin-1 alpha (IL-1 alpha) and IL-6 as well as elevated levels of CXCL12. Additionally, epithelial recovery from radiation stress was accelerated compared with the irradiated-alone controls. Moreover, mouse cxcl12 gene-modified MSCs were superior to unmodified cells at strengthening host repair responses to radiation stress as well as presenting increased serum CXCL12 levels and decreased serum IL-1a levels. Furthermore, the number of crypt cells that were positive for phosphorylated Akt at Ser473 and phosphorylated Erk1/2 at Thr202/Thr204 increased following treatment with mouse cxcl12 gene-modified MSCs. Thus, cxcl12 gene-modified MSCs confer radioresistance to the intestinal epithelium.
推荐引用方式
GB/T 7714：

Chang Pengyu,Zhang Boyin,Shao Lihong, et al. Mesenchymal stem cells over-expressing cxcl12 enhance the radioresistance of the small intestine [J].CELL DEATH & DISEASE,2018,9.
APA：

Chang Pengyu,Zhang Boyin,Shao Lihong,Song Wei,&Wang Jin.(2018).Mesenchymal stem cells over-expressing cxcl12 enhance the radioresistance of the small intestine .CELL DEATH & DISEASE,9.
MLA：

Chang Pengyu, et al. "Mesenchymal stem cells over-expressing cxcl12 enhance the radioresistance of the small intestine" .CELL DEATH & DISEASE 9(2018).
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