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- W2561990737 abstract "Introduction and Objective Bone morphogenetic protein-2 (BMP-2) has been shown to function as a tumor suppressor with several different cancers, while its expression level is down-regulated by CpG hypermethylation. We hypothesized that impaired regulation of BMP-2 through epigenetic pathways is associated with the pathogenesis of renal cell carcinoma (RCC). Methods To test our hypothesis, CpG methylation of the BMP-2 gene was analyzed using 2 RCC cell lines, and 96 matched RCC and normal renal tissues. We also performed functional analysis using BMP-2 restored RCC cells. Results BMP-2 mRNA expression was significantly enhanced in the RCC cells by 5-aza-2′-deoxycitidie treatment. The prevalence of BMP-2 promoter methylation was significantly higher, while BMP-2 mRNA expression was significantly lower in RCC samples as compared to normal kidney samples. Furthermore, a significant correlation was found between BMP-2 promoter methylation and mRNA transcription in the tumors. There was also a significant association of BMP-2 mRNA expression with tumor stage and lymph node involvement, while lower BMP-2 mRNA expression was significantly associated with poor overall survival after a radical nephrectomy. In RCC cells, BMP-2 restoration significantly inhibited cell proliferation, migration, invasion, and colony formation. In addition, BMP-2 overexpression effectively induced p21WAF1/CIP1 and p27KIP1 expression, and cellular apoptosis in RCC cells. Conclusion This is the first study to show inactivation of the BMP-2 gene via epigenetic pathways in RCC. Aberrant BMP-2 methylation and the resultant loss of BMP-2 expression may be useful as a molecular marker for designing improved diagnostic and therapeutic strategies for RCC. Citation Format: Yozo Mitsui, Hiroshi Hirata, Naoko Arichi, Miho Hiraki, Hiroaki Yasumono, Inik Chang, Shinichiro Fukuhara, Soichiro Yamamura, Varahram Shahryari, Guoren Deng, Sharanjot Saini, Shahana Majid, Yuichiro Tanaka, Rajvir Dahiya, Hiroaki Shiina. Dysregulation of bone morphogenetic protein 2 serves as a candidate molecular marker in human renal cell carcinoma. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr 3823. doi:10.1158/1538-7445.AM2015-3823" @default.
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- W2561990737 date "2015-08-01" @default.
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- W2561990737 title "Abstract 3823: Dysregulation of bone morphogenetic protein 2 serves as a candidate molecular marker in human renal cell carcinoma" @default.
- W2561990737 doi "https://doi.org/10.1158/1538-7445.am2015-3823" @default.
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