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• W2091211418 abstract "The cellular retinol-binding protein-1 (CRBP-1) plays a key role in the esterification and intercellular transfer of retinol. By in situ hybridization, immunohistochemistry, and confocal laser scanning microscopy (CLSM), we show that, in normal liver, CRBP-1 is strongly expressed in the cytoplasm of hepatic stellate cells (HSCs) and myofibroblasts (MFs) with only low CRBP-1 levels in hepatocytes. By contrast, in 196 hepatocellular carcinoma (HCC) specimens CRBP-1 expression in MFs was down-regulated in 83%. Patients with high CRBP-1 expression in MFs had a significantly higher 2-year survival as compared with patients with low CRBP-1 expression (52% vs. 29%, respectively; P =.034). An aberrant nuclear CRBP-1 accumulation resulting from cytoplasmic invagination was found in 29% of HCCs. Nuclear CRBP-1 staining correlated positively with a favorable tumor stage (Okuda stage I; P =.01) and negatively with the Ki-67(+) proliferation fraction (PF). A Ki-67(+) PF of > or =10% was associated with a lower 2-year survival probability as compared with patients with a Ki-67(+) PF of <10% (12% vs. 40%, respectively; P =.015). Prognosis did not correlate with the nuclear beta-catenin expression. There was, however, a close correlation between nuclear CRBP-1 inclusions and nuclear beta-catenin staining in HCCs (P =.008), suggesting a cross talk between CRBP-1 and the Wnt/wingless signal transduction pathway. In conclusion, our findings demonstrate that CRBP-1 detection may be useful for the discrimination between nonneoplastic and neoplastic liver cells and suggest that modulation of CRBP-1 expression in HCCs contributes to tumor growth and progression via retinoid-mediated signaling and disruption of cellular vitamin A homeostasis." @default.
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• W2091211418 date "2003-08-01" @default.
• W2091211418 modified "2023-10-18" @default.
• W2091211418 title "Cellular retinol-binding protein-1 in hepatocellular carcinoma correlates with β-catenin, Ki-67 index, and patient survival" @default.
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• W2091211418 doi "https://doi.org/10.1053/jhep.2003.50321" @default.
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