Tumor Biology

, Volume 35, Issue 12, pp 12525–12534 | Cite as

The genetic association between pri-miR-34b/c polymorphism (rs4938723 T > C) and susceptibility to cancers: evidence from published studies

  • Xiaowei Li
  • Liguang Wang
  • Jianyu Yu
  • Jun Xu
  • Jiajun Du
Research Article


Recently, several molecular epidemiological studies have focused on the association between pri-miR-34b/c rs4938723 SNP and the susceptibility to different cancers. Due to the controversial rather than conclusive results, we performed this meta-analysis to assess more precise and comprehensive conclusion about the association. Data published until July 2014 were collected from PubMed, Embase, Web of Science, Chinese National Knowledge Infrastructure, Wanfang Data, Chinese BioMedical Literature Database, and VIP database of Chinese Journal. Ultimately, 13 articles with a total of 7,753 cases and 8,014 controls were considered eligible for inclusion. The odds ratio (OR) and its 95 % confidence interval (95%CI) were used to assess the strength of association. In the overall analysis, a significant association between pri-miR-34b/c rs4938723 polymorphism and increased cancer susceptibility was found in heterozygous model (TC vs. TT: OR = 1.148, 95%CI 1.034–1.275, P = 0.010) and dominant model (CC + TC vs. TT: OR =1.166, 95%CI 1.028–1.322, P = 0.017). In subgroup analysis of ethnicity, pri-miR-34b/c rs4938723 polymorphism was significantly associated with an increased cancer susceptibility for Asian population in heterozygous model (TC vs. TT: OR = 1.169, 95%CI 1.031–1.326, P = 0.015) and dominant model (CC + TC vs. TT: OR = 1.185, 95%CI 1.017–1.382, P = 0.030), whereas no significant association for Caucasian population was observed in any genetic models. Intriguingly, stratified analysis revealed opposite results that pri-miR-34b/c polymorphism contributed to susceptibility to hepatocellular carcinoma while reduced susceptibility to colorectal cancer and esophageal squamous cell cancer in Asians. Considering some limitation of our meta-analysis, future well-designed case-control studies with larger sample sizes are required to confirm our findings.


Single nucleotide polymorphism Pri-miR-34b/c Cancer susceptibility Meta-analysis 



This research was supported (in part) by Shandong Provincial Natural Science Foundation of China (ZR2013HZ001) and National Natural Science Foundation of China (81301728). The funders had no role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. No additional external funding was received for this study.

Conflicts of interest


Supplementary material

13277_2014_2572_MOESM1_ESM.docx (19 kb)
Table S1 (DOCX 18 kb)
13277_2014_2572_MOESM2_ESM.docx (13 kb)
ESM 1 (DOCX 13 kb)


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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2014

Authors and Affiliations

  • Xiaowei Li
    • 1
  • Liguang Wang
    • 1
  • Jianyu Yu
    • 2
  • Jun Xu
    • 2
  • Jiajun Du
    • 1
    • 2
  1. 1.Institute of Oncology, Shandong Provincial Hospital Affiliated to Shandong UniversityShandong UniversityJinanPeople’s Republic of China
  2. 2.Department of Thoracic Surgery, Shandong Provincial Hospital Affiliated to Shandong UniversityShandong UniversityJinanPeople’s Republic of China

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