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猪小肠上皮细胞分离培养与鉴定

DOI: 10.3969/j.issn.1006-267x.2015.05.018

Keywords: 猪小肠上皮细胞,功能性,肠道营养与免疫,永生化

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Abstract:

为建立功能性永生化的猪小肠上皮细胞系,并为猪肠道营养吸收与免疫调控以及仔猪肠道疾病发病机制的研究提供细胞模型,本试验采用组织块培养法来分离纯化猪小肠上皮细胞,并通过细胞角蛋白18、细胞增殖曲线、核型分析来鉴定猪小肠上皮细胞。结果表明:1)采用组织块培养法能够成功培养猪小肠上皮细胞并稳定传11代。2)本试验获得的猪小肠上皮细胞角蛋白18抗原鉴定为阳性,染色体核型为二倍体。3)倒置显微镜下观察培养至第11代的猪小肠上皮细胞仍然保持着上皮细胞的特征,呈现"铺路石"和上皮样形态。培养11代后的猪小肠上皮细胞间隙开始变大,规则不明显,细胞开始凋亡。第15代的猪小肠上皮细胞则出现大量凋亡并从瓶底脱落,仅有很少细胞贴壁生长。综上所述,采用组织块培养法能够获得生物学功能稳定的猪小肠上皮细胞系并能正常传11代,可为细胞的永生化提供试验素材。

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