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MDM2 SNP309 polymorphism is associated with colorectal cancer risk.


ABSTRACT: The human murine double minute 2 (MDM2) is known as an oncoprotein through inhibiting P53 transcriptional activity and mediating P53 ubiquitination. Therefore, the amplification of MDM2 may attenuate the P53 pathway and promote tumorigenesis. The SNP309 T>G polymorphism (rs2279744), which is located in the intronic promoter of MDM2 gene, was reported to contribute to the increased level of MDM2 protein. In this hospital-based case-control study, which consisted of 573 cases and 588 controls, we evaluated the association between MDM2 SNP309 and the risk of colorectal cancer (CRC) in a Chinese population by using the TaqMan method to genotype the polymorphism. We found that the MDM2 SNP309 polymorphism was significantly associated with CRC risk. In addition, in our meta-analysis, we found a significant association between MDM2 SNP309 and CRC risk among Asians, which was consistent with our results. In conclusion, we demonstrated that the MDM2 SNP309 polymorphism increased the susceptibility of CRC in Asian populations.

SUBMITTER: Wang W 

PROVIDER: S-EPMC5381279 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature

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MDM2 SNP309 polymorphism is associated with colorectal cancer risk.

Wang Weizhi W   Du Mulong M   Gu Dongying D   Zhu Lingjun L   Chu Haiyan H   Tong Na N   Zhang Zhengdong Z   Xu Zekuan Z   Wang Meilin M  

Scientific reports 20140506


The human murine double minute 2 (MDM2) is known as an oncoprotein through inhibiting P53 transcriptional activity and mediating P53 ubiquitination. Therefore, the amplification of MDM2 may attenuate the P53 pathway and promote tumorigenesis. The SNP309 T>G polymorphism (rs2279744), which is located in the intronic promoter of MDM2 gene, was reported to contribute to the increased level of MDM2 protein. In this hospital-based case-control study, which consisted of 573 cases and 588 controls, we  ...[more]

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