Tumor Biology

, Volume 35, Issue 1, pp 103–109 | Cite as

RETRACTED ARTICLE: Comprehensive assessment of the association between tumor necrosis factor alpha G238A polymorphism and liver cancer risk

  • Xin Tian
  • Ping Ma
  • Chengguang Sui
  • Yan Li
  • Liye Fu
  • Tao Jiang
  • Yang Wang
  • Youhong Jiang
Research Article


Tumor necrosis factor alpha (TNF-α) has been suggested to play an important role in the development and liver cancer. TNF-α 238 G/A polymorphism was hypothesized to increase the risk of liver cancer, but findings from previous studies were controversial. To explore a more precise estimation of the relationship between TNF-α 238 G/A polymorphism and liver cancer, we performed a meta-analysis. PubMed, Embase, and China Biology Medicine databases were searched for all publications on this association through March 12, 2013. Odds ratios (ORs) with its 95 % confidence intervals (CIs) were used to assess the strength of this association. Eleven studies with 1,406 liver cancer cases and 2,386 noncancer controls were included into this meta-analysis. Overall, there was a significant association between TNF-α 238 G/A polymorphism and increased risk of liver cancer under all three genetic models (A vs. G, OR 1.51, 95 % CI 1.20–1.89, P < 0.001, I 2 = 37.7 %; AG vs. GG, OR 1.49, 95 % CI 1.01–2.21, P = 0.045, I 2 = 53.2 %; AA/AG vs. GG, OR 1.76, 95 % CI 1.35–2.30, P < 0.001, I 2 = 36.5 %). The sensitivity analysis further strengthened the validity of the positive association. Subgroup analysis of nine studies from Asian countries showed that there was a significant association between TNF-α 238 G/A polymorphism and increased risk of liver cancer in Asians (A vs. G, OR 1.35, 95 % CI 1.03–1.76, P = 0.027, I 2 = 40.2 %; AA/AG vs. GG, OR 1.56, 95 % CI 1.14–2.15, P = 0.006, I 2 = 41.9 %). In conclusion, TNF-α 238 G/A polymorphism is significantly associated with increased risk of liver cancer, especially in Asians.


Liver cancer Tumor necrosis factor-α Polymorphism 


Conflicts of interest



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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2013

Authors and Affiliations

  • Xin Tian
    • 1
  • Ping Ma
    • 1
  • Chengguang Sui
    • 1
  • Yan Li
    • 1
  • Liye Fu
    • 1
  • Tao Jiang
    • 1
  • Yang Wang
    • 1
  • Youhong Jiang
    • 1
  1. 1.Molecular Oncology Department of Cancer Research Institution, The First HospitalChina Medical UniversityShenyangChina

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