Open Access

Immunological characteristics of human umbilical cord mesenchymal stem cells and the therapeutic effects of their transplantion on hyperglycemia in diabetic rats

  • Authors:
    • Hongwu Wang
    • Xiaoyan Qiu
    • Ping Ni
    • Xuerong Qiu
    • Xiaobo Lin
    • Weizhao Wu
    • Lichun Xie
    • Limin Lin
    • Juan Min
    • Xiulan Lai
    • Yunbin Chen
    • Guyu Ho
    • Lian Ma
  • View Affiliations

  • Published online on: November 28, 2013     https://doi.org/10.3892/ijmm.2013.1572
  • Pages: 263-270
  • Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].

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Abstract

Islet transplantation involves the transplantation of pancreatic islets from the pancreas of a donor to another individual. It has proven to be an effective method for the treatment of type 1 diabetes. However, islet transplantation is hampered by immune rejection, as well as the shortage of donor islets. Human umbilical cord Wharton's jelly-derived mesenchymal stem cells (HUMSCs) are an ideal cell source for use in transplantation due to their biological characteristics and their use does not provoke any ethical issues. In this study, we investigated the immunological characteristics of HUMSCs and their effects on lymphocyte proliferation and the secretion of interferon (IFN)-γ, and explored whether direct cell-to-cell interactions and soluble factors, such as IFN-γ were important for balancing HUMSC-mediated immune regulation. We transplanted HUMSCs into diabetic rats to investigate whether these cells can colonize in vivo and differentiate into pancreatic β-cells, and whether the hyperglycemia of diabetic rats can be improved by transplantation. Our results revealed that HUMSCs did not stimulate the proliferation of lymphocytes and did not induce allogeneic or xenogeneic immune cell responses. qRT-PCR demonstrated that the HUMSCs produced an immunosuppressive isoform of human leukocyte antigen (HLA-I) and did not express HLA-DR. Flow cytometry revealed that the HUMSCs did not express immune response-related surface antigens such as, CD40, CD40L, CD80 and CD86. IFN-γ secretion by human peripheral blood lymphocytes was reduced when the cells were co-cultured with HUMSCs. These results suggest that HUMSCs are tolerated by the host in an allogeneic transplant. We transplanted HUMSCs into diabetic rats, and the cells survived in the liver and pancreas. Hyperglycemia of the diabetic rats was improved and the destruction of pancreatic cells was partly repaired by HUMSC transplantation. Hyperglycemic improvement may be related to the immunomodulatory effects of HUMSCs. However, the exact mechanisms involved remain to be further clarified.
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2014-February
Volume 33 Issue 2

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Wang H, Qiu X, Ni P, Qiu X, Lin X, Wu W, Xie L, Lin L, Min J, Lai X, Lai X, et al: Immunological characteristics of human umbilical cord mesenchymal stem cells and the therapeutic effects of their transplantion on hyperglycemia in diabetic rats. Int J Mol Med 33: 263-270, 2014
APA
Wang, H., Qiu, X., Ni, P., Qiu, X., Lin, X., Wu, W. ... Ma, L. (2014). Immunological characteristics of human umbilical cord mesenchymal stem cells and the therapeutic effects of their transplantion on hyperglycemia in diabetic rats. International Journal of Molecular Medicine, 33, 263-270. https://doi.org/10.3892/ijmm.2013.1572
MLA
Wang, H., Qiu, X., Ni, P., Qiu, X., Lin, X., Wu, W., Xie, L., Lin, L., Min, J., Lai, X., Chen, Y., Ho, G., Ma, L."Immunological characteristics of human umbilical cord mesenchymal stem cells and the therapeutic effects of their transplantion on hyperglycemia in diabetic rats". International Journal of Molecular Medicine 33.2 (2014): 263-270.
Chicago
Wang, H., Qiu, X., Ni, P., Qiu, X., Lin, X., Wu, W., Xie, L., Lin, L., Min, J., Lai, X., Chen, Y., Ho, G., Ma, L."Immunological characteristics of human umbilical cord mesenchymal stem cells and the therapeutic effects of their transplantion on hyperglycemia in diabetic rats". International Journal of Molecular Medicine 33, no. 2 (2014): 263-270. https://doi.org/10.3892/ijmm.2013.1572