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The Expression of Type Ⅰ Collagen mRNA and Transforming Growth Factor 1β1 in Dermal Fibroblasts from Patients with Systemic Sclerosis
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF DERMATOLOGY
- Issue:
- 9
- DOI:
- 10.3760/j.issn:0412-4030.2003.09.002
- Key Word:
- 硬皮病,系统性;成纤维细胞;转化生长因子β;溶胶原
Abstract： 目的探讨系统性硬皮病成纤维细胞自身分泌的转化生长因子(TGF)β1是否影响Ⅰ型胶原α1链(COLlA1)mRNA表达.方法采用核酸原位杂交和免疫印迹法分别测定培养的硬皮病和正常人成纤维细胞中COLlA1 mRNA的表达和TGF-β1蛋白质的含量.结果硬皮病组成纤维细胞COLlA1 mRNA(A值-x±s为905.09±20.36)表达较对照组354.17±30.89明显增高.硬皮病组和对照组成纤维细胞的COLlA1 mRNA表达均存在异质性,硬皮病组COLlA1 mRNA高表达的成纤维细胞数-x±s为27.33%±4.63%明显高于对照3.67%±1.20%,而对照组低COLlA1 mRNA表达的成纤维细胞数62.33%±3.53%明显高于硬皮病组14.33%±4.91%.硬皮病组内各细胞株间,高、中、低胶原表达的细胞数差异无显著性.硬皮病组和对照组成纤维细胞中TGF-β1蛋白质表达差异无显著性.结论硬皮病成纤维细胞Ⅰ型胶原mRNA表达增多,这种表达增多与成纤维细胞自身合成TGF-β1的水平可能无关.
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