人胚胎视网膜色素上皮细胞的体外培养和吞噬作用

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目的探讨人胚胎视网膜色素上皮(RPE)细胞分离培养的特性及其吞噬作用。方法取发育至13-15周的新鲜人胚胎眼球,显微解剖后采用机械胰酶消化法分离培养RPE细胞,应用免疫荧光法观察人胚胎RPE细胞吞噬视网膜光感受细胞外节膜盘。结果人胚胎发育至13-15周后,RPE细胞可应用标准的培养方法进行体外培养和传代。根据测定的人胚胎RPE细胞生长曲线,取2—6代细胞用于实验培养的人胚胎RPE细胞具备吞噬功能。结论改进了人胚胎RPE细胞的培养方法,证明人胚胎RPE细胞在体外具有吞噬能力。
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