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不同浓度富血小板血浆对体外培养骨髓间充质干细胞增殖活性的影响 被引量:12

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摘要 目的:探讨不同浓度的富血小板血浆(PRP)在不同时间段对体外培养骨髓间充质干细胞(MSCs)增殖活性的影响。方法:将体外培养的MSCs分为对照组(单纯血清培养组)和不同浓度的PRP组(0.5%,1.0%,1.5%),用四唑盐比色法(MTT)检测在不同作用时间(24h、48h、72h)对骨髓间充质干细胞增殖活性的影响。免疫组化方法检测细胞CD44、CD29、CD34的变化。结果:PRP中血小板浓度为全血的3.18倍,TGF-β和PDGF的浓度为全血的3.40倍;培养的细胞呈纤维状、克隆样生长;免疫组化表明CD29、CD44呈阳性表达,CD34呈阴性表达;MTT法显示不同浓度的PRP组在24h、48h、72h的平均吸光度(OD)值均高于对照组。结论:不同浓度的PRP在不同时间段可以促进骨髓间充质干细胞的增殖,并且随着浓度的增加PRP促进骨髓间充质干细胞增殖作用也增强。
出处 《陕西医学杂志》 CAS 2009年第6期651-654,共4页 Shaanxi Medical Journal
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