目的建立小鼠子宫蜕膜基质细胞(DSC)和小鼠骨髓来源的树突状细胞(DC)细胞共培养体系,探讨DSC对DC增殖的影响。方法应用白细胞介素-4(IL-4)和粒细胞-巨噬细胞集落刺激因子(GM-CSF)诱导小鼠骨髓细胞分化为DC,FACS检测细胞表面分子和细胞增殖,ELISA检测其分泌的细胞因子,构建DSC和DC共培养体系模型,动态观察DSC对DC增殖的影响。结果小鼠骨髓来源DC高表达CD11c,共刺激分子CD80和CD86,MHCⅡ类分子Ia和MHCⅠ类分子H-2Kb。经LPS刺激的DC分泌细胞因子IL-12(p70)、IL-6、TNF-α和IL-1β的水平明显上调(P〈0.05),并能够促进抗原肽特异性T淋巴细胞增殖反应能力(P〈0.05)。在DSC和DC共培养10天后观察到DSC明显促进DC增殖。结论小鼠子宫蜕膜基质细胞能够促进树突状细胞的增殖能力。
Objective:To investigate the effects of decidual stroma cell( DSC)on the proliferation of dendritic cells ( DC)by developing a co-culture system with the two cells. Methods:Cells isolated from the mice bone marrow were cul-tured with GM-CSF and IL-4 cytoKines,then cell surface marKers and cell proliferation were detected by FACS,and cyto-Kines were assayed by ELISA. Moreover,we developed a co-culture system with DSC and DC,and dynamically observed the effects of DSC on the proliferation of DC. Results:Bone marrow derived DC expressed high levels of CD11c,CD80, CD86,MHC-II,and MHC-I molecules. The secretion of IL-12(p70),IL-6,TNF-αand IL-1 were increased significantly treated by LPS(P〈0. 05),and the ability to stimulate antigen specific T cell proliferation was also enhanced(P〈0. 05). In addition,the proliferation of DC was increased after we cocultrued DSC and DC for 10 days. Conclusion:The proliferation of DC increases when induced by the mice DSC in vitro.