Tumor Biology

, Volume 35, Issue 8, pp 7555–7560 | Cite as

Common variant on MDM2 contributes to endometrial cancer susceptibility: evidence based on 7 studies

  • Yan Zhao
  • Xiaoer Yang
  • Xiaojiao Hao
  • Xiaolin Pan
  • Bo Zhao
  • Jingwen Ma
  • Jian Fang
  • Minghong Zhao
Research Article


Due to its important biological function as a key negative regulator of p53, the mouse double minute 2 homologue (MDM2) gene has been extensively studied. A functional variant in the MDM2 gene promoter, single-nucleotide polymorphism 309 (SNP309) T > G (rs2279744), has been reported to cause an increase in MDM2 protein levels and impairment of p53 tumor suppressor activity, which may be associated with the development of cancer. A number of studies were performed to investigate the relationship between this SNP and endometrial cancer. But, the results remain controversial. Thus, we performed a comprehensive meta-analysis to derive a more precise estimation of this susceptibility. There were seven eligible articles with a total of 1,278 patients and 2,189 controls included in the meta-analysis. In the present study, we found significant associations under the allele contrast and recessive model. The G allele was associated with elevated risk for endometrial cancer [allele contrast OR = 1.33, 95 % confidence interval (CI) = 1.12–1.58, P(Z) = 0.0009, P(Q) = 0.02)], while the homozygous GG genotype may also increase the risk of endometrial cancer [OR = 1.88, 95 % CI = 1.40–2.52, P(Z) < 0.0001, P(Q) = 0.02]. In the subgroup analysis by ethnicity, we found similar significant results for both Caucasians [allele contrast OR = 1.41, 95 % CI = 1.04–1.92, P(Z) = 0.03, P(Q) = 0.001; recessive model OR = 1.89, 95 % CI = 1.10–3.23, P(Z) = 0.02, P(Q) = 0.002] and Asians [allele contrast OR = 1.24, 95 % CI = 1.01–1.53, P(Z) = 0.04, P(Q) = 0.86; recessive model OR = 1.75, 95 % CI = 1.24–2.45, P(Z) = 0.001, P(Q) = 0.75]. Overall, the meta-analysis demonstrated that the MDM2 SNP309 polymorphism may be associated with increased risk of endometrial cancer.


MDM2 SNP309 (T > G) rs2279744 Single-nucleotide polymorphism (SNP) Variant Endometrial cancer 


Conflicts of interest


Supplementary material

13277_2014_1886_Fig4_ESM.jpg (22 kb)
Fig. S1

Funnel plot for the association of the MDM2 SNP309 with endometrial cancer risk (allele contrast). (JPEG 22 kb)

13277_2014_1886_MOESM1_ESM.tif (843 kb)
High resolution image (TIFF 843 kb)
13277_2014_1886_Fig5_ESM.jpg (22 kb)
Fig. S2

Funnel plot for the association of the MDM2 SNP309 with endometrial cancer risk (recessive model). (JPEG 21 kb)

13277_2014_1886_MOESM2_ESM.tif (926 kb)
High resolution image (TIFF 925 kb)
13277_2014_1886_Fig6_ESM.jpg (21 kb)
Fig. S3

Funnel plot for the association of the MDM2 SNP309 with endometrial cancer risk (dominant model). (JPEG 21 kb)

13277_2014_1886_MOESM3_ESM.tif (840 kb)
High resolution image (TIFF 839 kb)


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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2014

Authors and Affiliations

  • Yan Zhao
    • 1
  • Xiaoer Yang
    • 2
  • Xiaojiao Hao
    • 1
  • Xiaolin Pan
    • 1
  • Bo Zhao
    • 1
  • Jingwen Ma
    • 1
  • Jian Fang
    • 1
  • Minghong Zhao
    • 1
  1. 1.Department of Gynecology and ObstetricsBaoshan Hospital of Integrated Traditional Chinese and Western MedicineShanghaiPeople’s Republic of China
  2. 2.Department of Clinical LaboratoryShanghai Changning Maternity Infant Health HospitalShanghaiPeople’s Republic of China

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