Epithelial cells with hepatobiliary phenotype:Is it another stem cell candidate for healthy adult human liver?

查看全文 作　　者：Dung Ngoc [1]Khuu;Mustapha [1]Najimi;Etienne M [1]Sokal

机构地区：[1]Université Catholique de Louvain,Laboratory of Pediatric Hepatology & Cell therapy,Brussels,Belgium

出　　处：《World Journal of Gastroenterology》索引2007年第13卷第10期,共7页

基　　金：Supported by DGTRE,Région Wallonne (Grant Waleo HEPATERA) and by the Fondation saint-Luc. The first author is a recipient of fellowship from FNRS and the Université Catholique de Louvain 摘　　要：AIM:To investigate the presence and role of liver epithelial cells in the healthy human adult liver.METHODS:Fifteen days after human hepatocyte primary culture,epithelial like cells emerged and started proliferating.Cell colonies were isolated and sub-cultured for more than 160 d under specific culture conditions.Cells were analyzed for each passage using immunofluorescence,flow cytometry and reverse transcription-polymerase chain reaction(RT-PCR).RESULTS:Flow cytometry analysis demonstrated that liver epithelial cells expressed common markers for hepatic and stem cells such as CD90,CD44 and CD29 but were negative for CD34 and CD117.Using immunofluorescence we demonstrated that liver epithelial cells expressed not only immature(α-fetoprotein)but also differentiated hepatocyte(albumin and CK-18)and biliary markers(CK-7 and 19),whereas they were negative for OV-6.RT-PCR analysis confirmed immunofluorescence data and revealed that liver epithelial cells did not express mature hepatocyte markers such as CYP2B6,CYP3A4 and tyrosine amino-transferase.Purified liver epithelial cells were transplanted into SCID mice.One month after transplantation,albumin positive cell foci were detected in the recipient mouse parenchyma.CONCLUSION:According to their immature and bipotential phenotype,liver epithelial cells might represent a pool of precursors in the healthy human adult liver other than oval cells. 关键词：上皮细胞肝胆管表现型肝脏干细胞细胞分化细胞疗法

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Epithelial cells with hepatobiliary phenotype:Is it another stem cell candidate for healthy adult human liver?

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