Immunosuppression of bone marrow mesenchymal stem cells on T cells in patients with aplastic anemia
10.3969/j.issn.2095-4344.2013.36.013
- VernacularTitle:骨髓间充质干细胞对再生障碍性贫血患者T细胞的免疫抑制
- Author:
Leqin ZHANG
;
Yang XIAO
;
Zujun JIANG
;
Haowen XIAO
;
Li LI
;
Yan PANG
- Publication Type:Journal Article
- From:
Chinese Journal of Tissue Engineering Research
2013;(36):6462-6467
- CountryChina
- Language:Chinese
-
Abstract:
BACKGROUND:To date, there are few domestic reports about the influence of bone marrow mesenchymal stem cel s on T cel s proliferation in patients with aplastic anemia. And no study addresses the topic that if bone marrow mesenchymal stem cel s achieve immune regulation in aplastic anemia patients through inhibiting T cel s proliferation.
OBJECTIVE:To explore the effects of human bone marrow mesenchymal stem cel s on T cel s immune regulation in patients with aplastic anemia.
METHODS:Human bone marrow mesenchymal stem cel s were isolated, cultured and subcultivated in vitro. The morphological appearance of bone marrow mesenchymal stem cel s was observed and surface markers were measured by flow cyometry. The bone marrow mesenchymal stem cel s were co-cultured with T cel s extracted from peripheral blood of healthy volunteers and aplastic anemia patients for 7 days. The expressions of interferon-γ, interleukin-4 and interleukin-10 in the supernatants were detected with enzyme linked immunosorbent assay.
RESULTS AND CONCLUSION:The levels of interleukin-2 and interferon-γin the supernatant of aplastic anemia patients were significantly higher (P<0.05), while levels of interleukin-4 and interleukin-10 were significantly lower than that in healthy controls (P<0.05). Bone marrow mesenchymal stem cel s suppressed the elevated levels of interleukin-2 and interferon-γ, and enhanced the decreased levels of interleukin-4 and interleukin-10, thus regulating the immune dysfunction of aplastic anemia patients.
