摘要
目的:了解口腔粘膜下纤维性变组织中肌成纤维细胞的来源及机制。方法:体外培养正常口腔粘膜角质形成细胞(KC)和成纤维细胞(FB),并建立KC和FB共同培养体系;用免疫组织化学方法和RT-PCR方法检测α平滑肌肌动蛋白(α-SMA)蛋白和 mRNA的表达;用ELISA方法检测各组上清中TGF-β1的水平。结果:槟榔碱预处理的KC能促进FBα-SMA的 mRNA表达和蛋白的产生;槟榔碱预处理的KC和FB共同培养组上清中TGF-β1的水平高于FB组和槟榔碱干预FB组。结论:体外情况下经槟榔碱预处理后KC能促进MFB转化;TGF-β1可能在口腔粘膜FB转化为MFB的过程中起作用。
Objective:In order to elucidate the derivation and differentiation mechanisms for derivation of myofibroblasts in oral submucous fibrosis.Methods:Oral keratinocytes and fibroblasts were isolated and cultured,and a co-cultur system composed of the keratinocytes and fibroblasts was established in vitro.Expressions of α-SMA protein and mRNA in fibroblasts were detected by immunohistochemistry and RT-PCR. The level of TGF-β1 in conditioned medium were evaluated by ELISA.Results:The expressions of α-SMA mRNA and protein in fibroblasts co-cultured with keratinocytes preprocessed by arecoline was higher than that in fibroblasts co-cultured with keratinocytes and without preprocessed by arecoline. The level of TGF-β1 in conditioned medium of fibroblasts-keratinocytes preprocessed by arecoline co-cultures was higher than those of fibroblasts cultured alone.Conclusion:The derivation of myofibroblast from FB can be promoted by keratinocytes preprocessed by arecoline and TGF-β1 may play a role in the process.
出处
《中国免疫学杂志》
CAS
CSCD
北大核心
2007年第10期903-907,共5页
Chinese Journal of Immunology
