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碱性成纤维细胞生长因子对大鼠骨髓间质干细胞增殖的影响
Authors
Publication date
1 January 2004
Publisher
Editorial Office of Journal of Sun Yat-sen University
Abstract
【目的】研究碱性成纤维细胞生长因子(bFGF)对大鼠骨髓基质干细胞(MSC)增殖的影响。【方法】用α-MEM冲洗骨髓腔,收集骨髓细胞悬液,接种在塑料培养瓶中,经体外扩增、纯化,观察其生长特性,用免疫组织化学SABC法检测波形蛋白和纤粘连蛋白的表达,并研究不同浓度bFGF对MSC生长曲线和克隆形成率的影响。【结果】原代培养时形成由基质干细胞组成的细胞集落,细胞集落14d时接近融合,传代后细胞体积变大,约5~7d传代1次;免疫组化显示MSC呈波形蛋白阳性,而纤粘连蛋白阴性。浓度10ng/mL和20ng/mLbFGF组的MSC的细胞数和克隆形成率比5ng/mLbFGF组和对照组(无bFGF)明显增加,具有高度显著性(P<0.01)。【结论】bFGF可明显促进MSC的增殖
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Last time updated on 15/10/2024