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The association of frequent allelic loss on 17p13.1 with early metastastic recurrence of hepatocellular carcinoma after liver transplantation
Author(s) -
Zhou Lin,
Zhou Wuhua,
Wu Liming,
Yu Xiaobo,
Xing Chunyang,
Zheng Shusen
Publication year - 2010
Publication title -
journal of surgical oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.201
H-Index - 111
eISSN - 1096-9098
pISSN - 0022-4790
DOI - 10.1002/jso.21743
Subject(s) - loss of heterozygosity , hepatocellular carcinoma , liver transplantation , microsatellite , locus (genetics) , medicine , transplantation , pathology , allele , carcinoma , gastroenterology , oncology , cancer research , gene , biology , genetics
Background and Objectives Identification and characterization of loss of heterozygosity (LOH) can determine putative tumor suppressor genes (TSGs) and provide a variety of molecular markers for hepatocellular carcinoma (HCC). This study aimed to investigate LOH status on chromosomes 4q, 6q, 8p, 9p, and 17p, and to explore their clinical significances in HCC post‐liver transplantation. Methods A total of 37 patients with HCC who underwent liver transplantation were enrolled. LOH was examined using 34 microsatellite markers located on 4q13‐3q5, 6q27, 8p22‐p23, 9p21‐p22, and 17p12‐p13. Results The frequency of LOH at each microsatellite locus ranged from 23% to 75%, with a mean value of 53.1%. Frequencies of LOH on 4q, 6q, 8p, 9p, and 17p were 62% (23 of 37), 30% (11 of 37), 49% (18 of 37), 46% (16 of 35), and 68% (25 of 37), respectively. LOHs on certain chromosomal regions were significantly associated with age, AFP level, tumor size, tumor multiplicity, histological grade, and metastatic recurrence. Conclusions LOH on 17p13.1 correlated to metastatic HCC recurrence, while LOH on 4q and 8p was found to be associated with progression of HCC. Thus, potential novel biomarkers or TSGs for prognosis and treatment of HCC may harbor on these regions. J. Surg. Oncol. 2010;102:802–808. © 2010 Wiley‐Liss, Inc.