Hepatic non-parenchymal cells and extracellular matrix participate in oval cell-mediated liver regeneration

被引:36
|
作者
Zhang, Wei [1 ]
Chen, Xiao-Ping [1 ]
Zhang, Wan-Guang [1 ]
Zhang, Feng [1 ]
Xiang, Shuai [1 ]
Dong, Han-Hua [1 ]
Zhang, Lei [1 ]
机构
[1] Huazhong Univ Sci & Technol, Tongji Med Coll, Tongji Hosp, Hepat Surg Ctr, Wuhan 430030, Hubei Province, Peoples R China
基金
中国国家自然科学基金;
关键词
Oval cells; Liver regeneration; Extracellular matrix; Hepatic stellate cells; Kupffer cells; STEM-CELLS; PROGENITOR CELLS; RAT-LIVER; KUPFFER CELLS; HEPATOCYTES; DIFFERENTIATION; GROWTH; PROLIFERATION; EXPRESSION; FIBRONECTIN;
D O I
10.3748/wjg.15.552
中图分类号
R57 [消化系及腹部疾病];
学科分类号
摘要
AIM: To elucidate the interaction between non-parenchymal cells, extracellular matrix and oval cells during the restituting process of liver injury induced by partial hepatectomy (PH). METHODS: We examined the localization of oval cells, non-parenchymal cells, and the extracellular matrix components using immunohistochemical and double immunofluorescent analysis during the proliferation and differentiation of oval cells in N-2-acetylaminofluorene (2-AAF)/PH rat model. RESULTS: By day 2 after PH, small oval cells began to proliferate around the portal area. Most of stellate cells and laminin were present along the hepatic sinusoids in the periportal area. Kupffer cells and fibronectin markedly increased in the whole hepatic lobule. From day 4 to 9, oval cells spread further into hepatic parenchyma, closely associated with stellate cells, fibronectin and laminin. Kupffer cells admixed with oval cells by day 6 and then decreased in the periportal zone. From day 12 to 15, most of hepatic stellate cells (HSCs), laminin and fibronectin located around the small hepatocyte nodus, and minority of them appeared in the nodus. Kupffer cells were mainly limited in the pericentral sinusoids. After day 18, the normal liver lobule structures began to recover. CONCLUSION: Local hepatic microenvironment may participate in the oval cell-mediated liver regeneration through the cell-cell and cell-matrix interactions. (c) 2009 The WJG Press and Baishideng. All rights reserved.
引用
收藏
页码:552 / 560
页数:9
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