Genetic polymorphisms involved in the inflammatory response and lung cancer risk: A case-control study in Japan

Chikako Kiyohara, Takahiko Horiuchi, Koichi Takayama, Yoichi Nakanishi

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Evidence is accumulating that chronic inflammation may have an important mechanism for the development and progression of lung cancer. Therefore, genetic polymorphisms in genes that involved in the inflammatory response may be associated with lung cancer risk. We evaluated the role of tumor necrosis factor α (TNFA) rs1799724, interleukin 1β (IL1B) rs16944, IL6 rs1800796, myeloperoxidase (MPO) rs2333227 and C-reactive protein (CRP) rs2794520 in a case-control study comprised of 462 lung cancer cases and 379 controls in a Japanese population. Unconditional logistic regression was used to assess the adjusted odds ratios (OR) and 95% confidence intervals (95% CI). CRP rs2794520 (OR=1.64, 95% CI=1.19-2.26) and IL6 rs1800796 (OR=1.41, 95% CI=1.02-1.96) were associated with lung cancer risk. In addition, we assessed interactions between the polymorphisms and smoking. The polymorphisms did not significantly modify the association between smoking and lung cancer. As TNFA triggers a cytokine cascade, the modifying effect of the TNFA rs1799724 genotypes on the association of any of the remaining polymorphisms with lung cancer risk was also examined. There was a significant interaction between TNFA rs1799724 and MPO rs2333227 (Pinteraction=0.058). Future studies involving larger control and case populations will undoubtedly lead to a more thorough understanding of the role of the polymorphisms involved in the inflammation pathway in lung cancer.

Original languageEnglish
Pages (from-to)88-94
Number of pages7
JournalCytokine
Volume65
Issue number1
DOIs
Publication statusPublished - Jan 2014

All Science Journal Classification (ASJC) codes

  • Immunology and Allergy
  • Immunology
  • Biochemistry
  • Hematology
  • Molecular Biology

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