Probing the Hepatic Progenitor Cell in Human Hepatocellular Carcinoma

Objective. The intrahepatic stem cells, also known as hepatic progenitor cells (HPCs), are able to differentiate into hepatocytes and bile duct epithelia. By exposure of different injuries and different hepatocarcinogenic regimens, the mature hepatocytes can no longer effectively regenerate; stem ce...

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Main Authors: Shu-Qin Jia, Jian-Jun Ren, Pei-De Dong, Xing-Kai Meng
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Gastroenterology Research and Practice
Online Access:http://dx.doi.org/10.1155/2013/145253
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author Shu-Qin Jia
Jian-Jun Ren
Pei-De Dong
Xing-Kai Meng
author_facet Shu-Qin Jia
Jian-Jun Ren
Pei-De Dong
Xing-Kai Meng
author_sort Shu-Qin Jia
collection DOAJ
description Objective. The intrahepatic stem cells, also known as hepatic progenitor cells (HPCs), are able to differentiate into hepatocytes and bile duct epithelia. By exposure of different injuries and different hepatocarcinogenic regimens, the mature hepatocytes can no longer effectively regenerate; stem cells are involved in the pathogenesis of hepatocellular carcinoma. Methods. Immunohistochemistry was performed on 107 paraffin-embedded hepatocellular carcinoma specimens with the marker of hepatocyte and hepatocellular carcinoma (HepPar1), biliary differentiation (CK7,CK19), haemopoietic stem cell (HSC) (c-kit/CD117, CD34, and Thy-1/CD90), HPC specific markers (OV-6), and Ki-67, p53 protein. Results. HPCs can be identified in the tumor nodules, around the edge of tumor nodules, and in the portal tracts of the paracirrhosis nodules being positive in HepPar1, CK7, CK19, and OV-6, but they failed to immunostain with CD117, CD34, and CD90. The HPCs positive in Ki-67 are observed in the tumor and paracirrhosis tissues. In 107 specimens, 40.2% (43/107) HCC tissues expressed p53 protein, lower than that of the HPCs around the tumor nodules (46.7%, 50/107) and much higher than that of the HPCs around the paracirrhosis nodules (8.41%, 9/107). Conclusion. Human hepatocellular carcinogenesis may be based on transformation of HPCs, not HSCs, through the formation of the transitional cells (hepatocyte-like cells and bile ductal cells).
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spelling doaj-art-745f10f269c94296bb59e352a8327e552025-02-03T05:59:57ZengWileyGastroenterology Research and Practice1687-61211687-630X2013-01-01201310.1155/2013/145253145253Probing the Hepatic Progenitor Cell in Human Hepatocellular CarcinomaShu-Qin Jia0Jian-Jun Ren1Pei-De Dong2Xing-Kai Meng3Surgery Laboratory, The Affiliated Hospital, Inner Mongolia Medical University, Hohhot, Inner Mongolia 010050, ChinaDepartment of Surgery, The Affiliated Hospital, Inner Mongolia Medical University, Hohhot, Inner Mongolia 010050, ChinaDepartment of Surgery, The Affiliated Hospital, Inner Mongolia Medical University, Hohhot, Inner Mongolia 010050, ChinaDepartment of Surgery, The Affiliated Hospital, Inner Mongolia Medical University, Hohhot, Inner Mongolia 010050, ChinaObjective. The intrahepatic stem cells, also known as hepatic progenitor cells (HPCs), are able to differentiate into hepatocytes and bile duct epithelia. By exposure of different injuries and different hepatocarcinogenic regimens, the mature hepatocytes can no longer effectively regenerate; stem cells are involved in the pathogenesis of hepatocellular carcinoma. Methods. Immunohistochemistry was performed on 107 paraffin-embedded hepatocellular carcinoma specimens with the marker of hepatocyte and hepatocellular carcinoma (HepPar1), biliary differentiation (CK7,CK19), haemopoietic stem cell (HSC) (c-kit/CD117, CD34, and Thy-1/CD90), HPC specific markers (OV-6), and Ki-67, p53 protein. Results. HPCs can be identified in the tumor nodules, around the edge of tumor nodules, and in the portal tracts of the paracirrhosis nodules being positive in HepPar1, CK7, CK19, and OV-6, but they failed to immunostain with CD117, CD34, and CD90. The HPCs positive in Ki-67 are observed in the tumor and paracirrhosis tissues. In 107 specimens, 40.2% (43/107) HCC tissues expressed p53 protein, lower than that of the HPCs around the tumor nodules (46.7%, 50/107) and much higher than that of the HPCs around the paracirrhosis nodules (8.41%, 9/107). Conclusion. Human hepatocellular carcinogenesis may be based on transformation of HPCs, not HSCs, through the formation of the transitional cells (hepatocyte-like cells and bile ductal cells).http://dx.doi.org/10.1155/2013/145253
spellingShingle Shu-Qin Jia
Jian-Jun Ren
Pei-De Dong
Xing-Kai Meng
Probing the Hepatic Progenitor Cell in Human Hepatocellular Carcinoma
Gastroenterology Research and Practice
title Probing the Hepatic Progenitor Cell in Human Hepatocellular Carcinoma
title_full Probing the Hepatic Progenitor Cell in Human Hepatocellular Carcinoma
title_fullStr Probing the Hepatic Progenitor Cell in Human Hepatocellular Carcinoma
title_full_unstemmed Probing the Hepatic Progenitor Cell in Human Hepatocellular Carcinoma
title_short Probing the Hepatic Progenitor Cell in Human Hepatocellular Carcinoma
title_sort probing the hepatic progenitor cell in human hepatocellular carcinoma
url http://dx.doi.org/10.1155/2013/145253
work_keys_str_mv AT shuqinjia probingthehepaticprogenitorcellinhumanhepatocellularcarcinoma
AT jianjunren probingthehepaticprogenitorcellinhumanhepatocellularcarcinoma
AT peidedong probingthehepaticprogenitorcellinhumanhepatocellularcarcinoma
AT xingkaimeng probingthehepaticprogenitorcellinhumanhepatocellularcarcinoma