RT Journal Article SR Electronic T1 Down-regulated Expression of RhoA in Human Conventional Renal Cell Carcinoma JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 2039 OP 2043 VO 28 IS 4B A1 YEONG-SHIAU PU A1 CHUANG-WEI WANG A1 GUANG-YAW LIU A1 YI-ZIH KUO A1 CHAO-YUAN HUANG A1 WANG-YI KANG A1 CHIA-TUNG SHUN A1 CHIA-CHI LIN A1 WEN-JENG WU A1 TZYH-CHYUAN HOUR YR 2008 UL http://ar.iiarjournals.org/content/28/4B/2039.abstract AB Background: Renal cell carcinoma (RCC) is the most common cancer in adult kidney. Delayed diagnosis may result in progression and metastasis. Markers for early detection of RCC are lacking. The small GTPase RhoA has been implicated in the regulation of cell morphology, motility and transformation, but the role of RhoA in tumorigenesis of RCC remains unclear. In this study, the significance of RhoA expression in human RCC was characterized. Materials and Methods: RhoA mRNA and protein expressions were examined by real-time polymerase chain reaction (PCR) and immunohistochemistry respectively in 46 pairs of tissues. Results: Real-time PCR revealed that RhoA mRNA expression was significantly lower in cancerous as compared to normal tissues (p=0.036). RhoA protein expression was significantly higher in normal than in cancerous tissues (p=0.032). However, RhoA expression did not correlate with age, differentiation grade or TNM stage (all p>0.05). Conclusion: RhoA down-regulation may be involved in human renal tumorigenesis. Copyright© 2008 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved