
The pathogenesis of fibrosis in hepatic cirrhosis remains obscure. This study examines the eventual role of angiogenic factors in the fibrotic process. A series of 55 cirrhotic livers was studied for the proliferation state of fibroblasts, and the expression of vascular endothelial growth factor (VEGF), thymidine phosphorylase (TP) and the basic and acidic fibroblast growth factor (bFGF, aFGF) in both fibroblasts and hepatic cells. The angiogenic and/or fibrogenic factors VEGF, TP, bFGF, and aFGF were clearly expressed in regenerative hepatocytes, but not in fibroblasts of diffuse hepatic fibrosis. The immunohistochemical findings suggest that angiogenic factors and factors promoting oxidative stress (i.e., TP) produced by hepatocytes may contribute to the development of fibrous bands in hepatic cirrhosis.
Liver Cirrhosis, Vascular Endothelial Growth Factor A, Thymidine Phosphorylase, Fibroblasts, Immunohistochemistry, Pathology, Clinical Study, Hepatocytes, RB1-214, Fibroblast Growth Factor 1, Humans, Angiogenesis Inducing Agents, Fibroblast Growth Factor 2, Cell Proliferation
Liver Cirrhosis, Vascular Endothelial Growth Factor A, Thymidine Phosphorylase, Fibroblasts, Immunohistochemistry, Pathology, Clinical Study, Hepatocytes, RB1-214, Fibroblast Growth Factor 1, Humans, Angiogenesis Inducing Agents, Fibroblast Growth Factor 2, Cell Proliferation
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