A novel diagnostic marker, p28GANK distinguishes hepatocellular carcinoma from potential mimics

Journal of Cancer Research and Clinical Oncology
Xiaoyong FuHongyang Wang

Abstract

To investigate the sensitivity, specificity, and spatial distribution of the product of p28 gene (p28(GANK) protein) in human hepatocellular carcinoma (HCC) and nonhepatocellular carcinomas in relation to immunostaining with Cytokeratin 18 (CK18), alpha-fetoprotein (AFP), and Hepatocyte paraffin 1 (HepPar1). In this retrospective study, formalin-fixed paraffin-embedded tissues from 24 HCCs, five intrahepatic cholangiocarcinomas (ICC), five combined hepatocellular cholangiocarcinomas (C-HCC-CC) and mine metastatic hepatic carcinomas (MHC) were immunostained for p28(GANK) as well as CK18, AFP and HepPar1. Only cases with more intensified staining in carcinoma contrast to the adjacent liver tissues were accepted as positive. In HCC, p28(GANK) was expressed restrictively in hepatocytes of both para-lesion and carcinoma liver tissues, while absent in the bile duct epithelial cells, Kupffer cells, and other interstitial cells. The positive staining of p28(GANK) was noted in 16 (66.7%) specimens of HCC and three (60.0%) specimens of C-HCC-CC, and no specific lesion staining was found in all tested specimens of ICC and MHC. Sensitivity and specificity for hepatocyte-originated carcinoma were, respectively, 65.5% and 100% for p28(GANK),...Continue Reading

Citations

Nov 27, 2007·Journal of Molecular Histology·Chiung-Chi ChengYih-Shyong Lai
Jul 28, 2010·The American Journal of Surgical Pathology·Benjamin C YanJohn A Hart
Mar 23, 2011·Journal of Gastroenterology and Hepatology·Kevin Z QuMaher Albitar
Nov 9, 2012·Human Pathology·Chung-Ta LeeTsung-Teh Wu

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