目的探索人膽囊上皮細胞的最佳分離方法和適宜的體外生長條件,為深入研究膽囊的生理功能和相關疾病的病理機理奠定基礎。方法用Ⅳ型膠原酶消化及鈍性刮離法分離膽囊上皮細胞,兩步貼壁法純化。比較層粘連蛋白、多聚賴氨酸、纖維連接蛋白等不同培養(yǎng)基質(zhì)對傳代細胞生長的影響。光鏡及電鏡下觀察細胞的形態(tài)和超微結(jié)構(gòu)。結(jié)果每個膽囊可分離得到(1~5)×107個膽囊上皮細胞,細胞活性可達90%。細胞呈典型的扁平多角狀、柱狀形態(tài),片狀貼壁生長,上皮細胞特異性抗原CK19表達陽性。結(jié)論Ⅳ型膠原酶消化法加鈍性刮剝分離法和兩步貼壁法可成功分離高活性、高純度的人膽囊上皮細胞; 纖維連接蛋白包被的培養(yǎng)器皿和含20%小牛血清及10 ng/ml hEGF的DMEM培養(yǎng)基有利于膽囊上皮細胞的體外培養(yǎng)。
引用本文: 李勝富,潘光棟,劉瑾,熊先澤,劉江文,張杰,步宏,程南生. 體外培養(yǎng)人膽囊上皮細胞的形態(tài)學及培養(yǎng)條件的優(yōu)化. 中國普外基礎與臨床雜志, 2003, 10(5): 459-462. doi: 復制
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