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α-平滑肌肌动蛋白、波形蛋白在大鼠矽肺模型中表达的病理形态学特点及其意义 被引量:6

Pathological significance of α-smooth muscle actin and vimentin of lung silicostic model in rats
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摘要 目的:观察与探讨α-平滑肌肌动蛋白(α-SMA)、波形蛋白在大鼠矽肺模型中的表达及其病理学意义.方法:采用非暴露式支气管灌注SiO2制作大鼠矽肺模型,分1、2、4、8周4个时间点进行观察.应用免疫组织化学显色检测CD68、波形蛋白和α-SMA在肺组织中的表达.结果:在正常对照组,α-SMA仅表达于血管和支气管的平滑肌,而在正常肺泡上皮和支气管黏膜上皮中无表达;在矽肺模型组,随着染尘时间的延长,矽肺纤维化程度逐渐加重.波形蛋白在早期染尘肺组织可表达于肺泡的巨噬细胞,并与α-SMA均能够明显表达于矽结节和间质纤维化区域.结论:矽肺形成过程中发生了肌成纤维细胞分化,α-SMA和波形蛋白在矽肺大鼠模型中具有较为特殊的分布与定位特征,并与矽肺纤维化及其病变的形成密切相关.
出处 《解剖学杂志》 CAS CSCD 北大核心 2014年第3期300-303,共4页 Chinese Journal of Anatomy
基金 国家自然科学基金,唐山市科技计划项目,河北联合大学博士科研启动项目
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