Administration of donor-derived mesenchymal stem cells can prolong the survival of rat cardiac allograft

被引：120

作者：

Zhou, H. P. ^{[1
]}

Yi, D. H. ^{[1
]}

Yu, S. Q. ^{[1
]}

Sun, G. C. ^{[1
]}

Cui, Q. ^{[1
]}

Zhu, H. L. ^{[1
]}

Liu, J. C. ^{[1
]}

Zhang, J. Z. ^{[1
]}

Wu, T. J. ^{[1
]}

机构：

[1] Fourth Mil Med Univ, Xijing Hosp, Dept Cardiovasc Surg, Xian 710032, Shannxi Prov, Peoples R China

来源：

TRANSPLANTATION PROCEEDINGS | 2006年 / 38卷 / 09期

关键词：

D O I：

10.1016/j.transproceed.2006.10.002

中图分类号：

R392 [医学免疫学]; Q939.91 [免疫学];

学科分类号：

100102 ;

摘要：

Background. Mesenchymal stem cells (MSCs) are multipotent adult elements that have recently been shown to have profound immunomodulatory effects both in vitro and in vivo. Herein we have examined the impact of intravenous infusion of donor MSCs on the survival of transplanted hearts in a rat allograft model. Methods. Recipient Fisher344 rats were transplanted with hearts from inbred Wistar rats. Wistar rat MSCs were infused via the tail vein at designated intervals. In vitro mixed lymphocyte reaction (MLR) and cell-mediated lympholysis (CML) assays were performed to assess whether MSCs downregulated T-cell responses in vivo. Real-time polymerase chain reaction (PCR) was used to analyze the Th1/Th2 balance in MSC-treated and control groups. Results. The MSCs cultured in vitro exhibited multipotential for differentiation. Survival of the allografts was markedly prolonged by administration of MSCs compared with the controls, namely mean survivals of 12.4 vs 6.4 days, respectively. Real-time PCR showed a shift in the Th1/Th2 balance toward Th2. By MLR and CML assays, untreated control rats showed greater alloreactivity than did MSC-treated rats. Conclusion. Our results indicated that MSCs suppressed allogeneic T-cell responses both in vitro and in vivo. Intravenous administration of MSCs prolonged the survival of transplanted hearts, possibly by induction of allograft tolerance through changing the Th1/Th2 balance.

引用

页码：3046 / 3051

页数：6

共 27 条

[11] Preimplantation-stage stem cells induce long-term allogeneic graft acceptance without supplementary host conditioning [J].