PMID- 24966916 OWN - NLM STAT- MEDLINE DCOM- 20150223 LR - 20211021 IS - 1936-2625 (Electronic) IS - 1936-2625 (Linking) VI - 7 IP - 5 DP - 2014 TI - Glo1 genetic amplification as a potential therapeutic target in hepatocellular carcinoma. PG - 2079-90 AB - Glyoxalase 1 (Glo1) gene aberrations is associated with tumorigenesis and progression in numerous cancers. In this study, we explored the role of Glo1 genetic amplification and expression in Chinese patients with hepatocellular carcinoma (HCC), and Glo1 genetic amplification as potential therapeutic target for HCC. We used fluorescence in situ hybridization (FISH) analysis and qRT-PCR to examine Glo1 genetic aberrations and Glo1 mRNA expression in paired tumor samples obtained from HCC patients. Glo1 genetic amplification was identified in a subset of HCC patient (6%, 3/50), and up-regulation of Glo1 expression was found in 48% (24/50) of tumor tissues compared with adjacent non-tumorous tissues. Statistic analysis showed that Glo1-upregulation significantly correlated with high serum level of alpha-fetoprotein (AFP). Interfering Glo1 expression with shRNA knocking-down led to significant inhibition of cell growth and induced apoptosis in primarily cultured HCC cells carrying genetic amplified Glo1 gene, while no inhibitory effects on cell proliferation were observed in HCC cells with normal copies of Glo1 gene. Glo1 knockdown also inhibited tumor growth and induced apoptosis in xenograft tumors established from primarily cultured HCC cells with Glo1 gene amplification. In addition, Glo1 knocking-down with shRNA interfering caused cellular accumulation of methylglyoxal, a Glo1 cytotoxic substrate. Our data suggested Glo1 pathway activation is required for cell proliferation and cell survival of HCC cells carrying Glo1 genetic amplification. Intervention of Glo1 activation could be a potential therapeutic option for patients with HCC carrying Glo1 gene amplification. FAU - Zhang, Shirong AU - Zhang S AD - Department of Oncology, Hangzhou First People's Hospital Hangzhou, Zhejiang, China. FAU - Liang, Xiaodong AU - Liang X AD - Department of Oncology, Hangzhou First People's Hospital Hangzhou, Zhejiang, China. FAU - Zheng, Xiaoliang AU - Zheng X AD - Centre of Molecular Medicine, Zhejiang Academy of Medical Sciences Hangzhou, Zhejiang, China. FAU - Huang, Haixiu AU - Huang H AD - Department of Oncology, Hangzhou First People's Hospital Hangzhou, Zhejiang, China. FAU - Chen, Xufeng AU - Chen X AD - Department of Pathology and Laboratory Medicine, University of California at Los Angeles Los Angeles, CA, USA. FAU - Wu, Kan AU - Wu K AD - Centre of Molecular Medicine, Zhejiang Academy of Medical Sciences Hangzhou, Zhejiang, China. FAU - Wang, Bing AU - Wang B AD - Centre of Molecular Medicine, Zhejiang Academy of Medical Sciences Hangzhou, Zhejiang, China. FAU - Ma, Shenglin AU - Ma S AD - Department of Oncology, Hangzhou First People's Hospital Hangzhou, Zhejiang, China. LA - eng PT - Journal Article DEP - 20140415 PL - United States TA - Int J Clin Exp Pathol JT - International journal of clinical and experimental pathology JID - 101480565 RN - 0 (AFP protein, human) RN - 0 (Biomarkers, Tumor) RN - 0 (RNA, Messenger) RN - 0 (alpha-Fetoproteins) RN - 722KLD7415 (Pyruvaldehyde) RN - EC 4.4.1.5 (Lactoylglutathione Lyase) SB - IM MH - Animals MH - Apoptosis MH - Biomarkers, Tumor/*genetics/metabolism MH - Carcinoma, Hepatocellular/enzymology/*genetics/pathology/therapy MH - Cell Line, Tumor MH - Cell Proliferation MH - China MH - Female MH - *Gene Amplification MH - Gene Expression Regulation, Enzymologic MH - Gene Expression Regulation, Neoplastic MH - Humans MH - Lactoylglutathione Lyase/*genetics/metabolism MH - Liver Neoplasms/enzymology/*genetics/pathology/therapy MH - Male MH - Mice, Inbred BALB C MH - Mice, Nude MH - Middle Aged MH - Pyruvaldehyde/metabolism MH - RNA Interference MH - RNA, Messenger/genetics MH - Time Factors MH - Transfection MH - Tumor Burden MH - Tumor Cells, Cultured MH - alpha-Fetoproteins/analysis PMC - PMC4069890 OTO - NOTNLM OT - Glyoxalase 1 OT - apoptosis OT - cell proliferation OT - genetic amplification OT - hepatocellular carcinoma EDAT- 2014/06/27 06:00 MHDA- 2015/02/24 06:00 PMCR- 2014/04/15 CRDT- 2014/06/27 06:00 PHST- 2014/03/18 00:00 [received] PHST- 2014/04/10 00:00 [accepted] PHST- 2014/06/27 06:00 [entrez] PHST- 2014/06/27 06:00 [pubmed] PHST- 2015/02/24 06:00 [medline] PHST- 2014/04/15 00:00 [pmc-release] PST - epublish SO - Int J Clin Exp Pathol. 2014 Apr 15;7(5):2079-90. eCollection 2014.