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首页> 外文期刊>Cell biology international. >Intratracheal transplantation of bone marrow-derived mesenchymal stem cells reduced airway inflammation and up-regulated CD4(+) CD25(+) regulatory T cells in asthmatic mouse.
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Intratracheal transplantation of bone marrow-derived mesenchymal stem cells reduced airway inflammation and up-regulated CD4(+) CD25(+) regulatory T cells in asthmatic mouse.

机译:气管移植骨髓源性间充质干细胞可减少哮喘小鼠的气道炎症并上调CD4(+)CD25(+)调节性T细胞。

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摘要

Mesenchymal stem cells attenuate the severity of lung injury due to their immunomodulatory properties. The effect of bone marrow-derived mesenchymal stem cells on asthma is seldom reported. We have examined the effect of BMSCs on airway inflammation in asthma. Forty female BALB/c mice were equally randomised into PBS group, BMSCs treatment group, BMSCs control group and asthmatic group. Reactivity of the airway to acetylcholine was measured by barometric plethysmography. Cytokine profiles of bronchoalveolar lavage fluid and serum were determined by enzyme-linked immunosorbent assay. Morphometric analysis was done with haematoxylin and periodic-acid Schiff staining. Engraftment of BMSCs in asthmatic mice significantly decreased the number of eosinophils and mononuclear cells in bronchoalveolar lavage fluid and the airway (P?
机译:间充质干细胞由于其免疫调节特性而减轻了肺损伤的严重程度。很少报道骨髓来源的间充质干细胞对哮喘的作用。我们已经检查了BMSC对哮喘气道炎症的影响。将40只雌性BALB / c小鼠平均分为PBS组,BMSCs治疗组,BMSCs对照组和哮喘组。通过气压体积描记法测量气道对乙酰胆碱的反应性。通过酶联免疫吸附法测定支气管肺泡灌洗液和血清的细胞因子谱。用苏木精和高碘酸希夫(Schiff)染色进行形态分析。将BMSCs植入哮喘小鼠后,可显着降低支气管肺泡灌洗液和气道中嗜酸性粒细胞和单核细胞的数量(P <0.05)。在BMSCs治疗组中,杯状细胞增生和对乙酰胆碱的反应性均显着降低。此外,BMSCs的植入引起肺淋巴结中Treg的比率显着增加,BALF和血清中白细胞介素10(IL-10)和白细胞介素12的水平显着增加。我们得出的结论是,BMSCs植入改善了哮喘小鼠的气道炎症并改善了肺功能,其保护作用可能是通过上调Treg介导的,并且部分参与了IL-10的增加。

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