皮肤型红斑狼疮皮损中鳞状细胞癌抗原1的表达和意义
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重庆市自然科学基金(cstc2011JJA10039)


The expression and significance of squamous cell carcinoma antigen-1 in cutaneous lupus erythematosus
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    摘要:

    目的:研究鳞状细胞癌抗原1(squamous cell carcinoma antigen-1,SSCA1)在皮肤型红斑狼疮(cutaneous lupus erythematosus,CLE)皮损中的表达和意义-方法:培养原代角质形成细胞,提取蛋白样品采用固相pH梯度双向凝胶电泳进行分离,应用ImageMaster 2D Platinum 5.0软件对图像进行匹配分析,选取差异表达个蛋白质点,经基质辅助激光解吸附飞行时间质谱进行质谱鉴定-并通过免疫印迹验证其表达水平-结果:体外培养角质形成细胞成功,获得重复性较好的双向电泳图谱,和正常皮肤相比,SCCA1在CLE皮损角质形成细胞中表达升高,免疫印迹验证与双向电泳结果一致-结论:SCCA1在CLE皮损角质形成细胞中表达升高,可能与CLE的发生发展有关,但SCCA1表达升高的具体机制仍需进一步研究-

    Abstract:

    Objective: To study the expression and significance of squamous cell carcinoma antigen-1 (SCCA1) in keratinocytes from the lesion of cutaneous lupus erythematosus. Methods: The keratinocytes were isolated from the human skin and cultured in serum-free media. The total proteins of keratinocytes were separated by 2-dimensional gel electrophoresis. The differential proteins were analyzed using ImageMaster 2D analysis software after staining and identified by MALDI-TOF-MS. The expressional levels of the proteins were further confirmed by Western blot analysis. Results: We successfully in vitro cultured human skin primary keratinocytes and established 2-dimensional electrophoresis profiles with high resolution and reproducibility. The SCCA1 protein was up-regulated in the keratinocytes from lesion of CLE compared to the normal group,and the result from both proteomics approach agreed with that of Western blot analysis. Conclusion: The SCCA1 protein was up-regulated in the keratinocytes from lesion of CLE,which may be related to the development of CLE. However,the pathogenesis of over expression of SCCA1 need further study.

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方 圣,单 葵,周 汛,陈爱军,李 惠.皮肤型红斑狼疮皮损中鳞状细胞癌抗原1的表达和意义[J].南京医科大学学报(自然科学版),2012,(2):204-207

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  • 收稿日期:2011-08-26
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