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The down-regulation of the CYP2C19 gene is associated with aggressive tumor potential and the poorer recurrence-free survival of hepatocellular carcinoma

2018; Impact Journals LLC; Volume: 9; Issue: 31 Linguagem: Inglês

10.18632/oncotarget.25178

1949-2553

Ryo Ashida, Yukiyasu Okamura, Keiichi Ohshima, Yuko Kakuda, Katsuhiko Uesaka, Teiichi Sugiura, Takaaki Ito, Yusuke Yamamoto, Takashi Sugino, Kenichi Urakami, Masatoshi Kusuhara, Ken Yamaguchi,

Cancer, Stress, Anesthesia, and Immune Response

// Ryo Ashida 1 , Yukiyasu Okamura 1 , Keiichi Ohshima 2 , Yuko Kakuda 3 , Katsuhiko Uesaka 1 , Teiichi Sugiura 1 , Takaaki Ito 1 , Yusuke Yamamoto 1 , Takashi Sugino 3 , Kenichi Urakami 4 , Masatoshi Kusuhara 5 and Ken Yamaguchi 6 1 Division of Hepato-Biliary-Pancreatic Surgery, Shizuoka Cancer Center, Shizuoka, Japan 2 Medical Genetics Division, Shizuoka Cancer Center Research Institute, Shizuoka, Japan 3 Division of Pathology, Shizuoka Cancer Center, Shizuoka, Japan 4 Cancer Diagnostics Research Division, Shizuoka Cancer Center Research Institute, Shizuoka, Japan 5 Regional Resources Division, Shizuoka Cancer Center Research Institute, Shizuoka, Japan 6 Shizuoka Cancer Center Hospital and Research Institute, Shizuoka, Japan Correspondence to: Yukiyasu Okamura, email: yu.okamura@scchr.jp Keywords: hepatocellular carcinoma; integrated gene expression profiling; CYP2C19 gene; down-regulation; recurrence-free survival Received: February 05, 2018 Accepted: April 05, 2018 Published: April 24, 2018 ABSTRACT Project HOPE (High-tech Omics-based Patient Evaluation) began in 2014 using integrated gene expression profiling (GEP) of cancer tissues as well as diathesis of each patient who underwent an operation at our institution. The aim of this study was to clarify the association between the expression of cytochrome P450s (CYP) genes and recurrence of hepatocellular carcinoma (HCC). The present study included 92 patients. Genes with aberrant expression were selected based on a ≥10-fold difference in the expression between tumor and non-tumor tissues. The GEP analysis showed that the down-regulated genes in tumor tissue were CYP3A4 in 56 patients (61%), CYP2C8 in 44 patients (48%), CYP2C19 in 30 patients (33%), CYP2D6 in 11 patients (12%), CYP3A5 in 7 patients (8%) and CYP1B1 in 2 patients (2%). There was no patients with down-regulation of the CYP17A1 gene. A multivariate analysis revealed that the presence of microscopic portal invasion (hazard ratio [HR] 2.57, 95% confidence interval [CI] 1.30–5.05 P = 0.006), the presence of intrahepatic-metastasis (HR 3.09 95% CI 1.52–6.29 P = 0.002) and down-regulation of the CYP2C19 gene (HR 3.69 95% CI 1.83–7.46 P < 0.001) were independent predictors for the recurrence-free survival (RFS). The down-regulation of the CYP2C19 gene were correlated with the RFS in HCC.