 
        
						Yoko Nishikawa 
	
					    												
Japan						                            
                            
						
 Research Article
												STEAP4 Inactivation Correlates Poor Prognosis and might be a Possible Cause of steatotic Change in Hepatocellular Carcinoma, Detected by Triple-Combination Array Analysis 						
Author(s): Fuminori Sonohara, Masamichi Hayashi, Mitsuhiro Hishida, Yoshikuni Inokawa, Mitsuro Kanda, Yoko Nishikawa, Shin Takeda, Hiroyuki Sugimoto, Tsutomu Fujii, Yasuhiro Kodera and Shuji NomotoFuminori Sonohara, Masamichi Hayashi, Mitsuhiro Hishida, Yoshikuni Inokawa, Mitsuro Kanda, Yoko Nishikawa, Shin Takeda, Hiroyuki Sugimoto, Tsutomu Fujii, Yasuhiro Kodera and Shuji Nomoto             
						
												
				 In the present study, we originally designed triple-combination array analysis to identify tumor related genes in Hepatocellular Carcinoma (HCC). Using this method, the six transmembrane epithelial antigen of prostate family 4 (STEAP4), it was reported association with obesity and insulin-resistance, was detected as a candidate tumor suppressor gene. We found 32 of 48 (66.7%) tumor tissues showed STEAP4 promoter hypermethylation, and its expression level was significantly reduced in tumor tissues (p<0.0001). Methylated cases demonstrated significantly poorer recurrence-free survival (p=0.0462) and overall survival (p=0.0411). Triple-combination array analysis represents a useful technique for identifying novel tumor-related genes in HCC. .. View More»
				  
												DOI:
												 10.4172/2157-2518.1000201