Genetic polymorphisms of CYP2E1 and risk of colorectal cancer: The fukuoka colorectal cancer study

Makiko Morita, Loïc Le Marchand, Suminori Kono, Guang Yin, Kengo Toyomura, Jun Nagano, Tetsuya Mizoue, Ryuichi Mibu, Masao Tanaka, Yoshihiro Kakeji, Yoshihiko Maehara, Takeshi Okamura, Koji Ikejiri, Kitaroh Futami, Takafumi Maekawa, Yohichi Yasunami, Kenji Takenaka, Hitoshi Ichimiya, Nobutoshi Imaizumi

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Abstract

Cytochrome P450 2E1 (CYP2E1) is involved in the metabolic activation of a wide variety of potential carcinogens, and functional polymorphisms in the CYP2E1 gene have been investigated in relation to colorectal cancer. We examined the relation of the CYP2E1 RsaI and 96-bp insertion polymorphisms to colorectal cancer risk and the interaction between these polymorphisms and some lifestyle risk factors. Subjects were 685 incident cases of colorectal cancer and 778 community controls. Statistical adjustment was made for alcohol use, body mass index, physical activity, and other factors. The RsaI c2 allele was associated with a decreased risk of rectal cancer [adjusted odds ratio for at least one c2 allele, 0.71; 95% confidence interval (95% CI), 0.53-0.95], and an increased risk of rectal cancer was observed among individuals having one or two 96-bp insertion alleles (adjusted odds ratio, 1.40; 95% CI, 1.06-1.85). Individuals with two 96-bp insertion alleles showed a 2.28-fold increase in colon cancer risk (95% CI, 1.29-4.01). The two polymorphisms were in almost complete linkage disequilibrium (D′ = 0.94). A positive association between alcohol intake and colorectal cancer was observed only in individuals without RsaI c2 allele (Ptrend = 0.03) or in those without 96-bp insertion allele (P trend = 0.009). Colon cancer risk was increased in relation to red meat intake only in individuals having one or two 96-bp insertion alleles (Pinteraction = 0.03). The present study suggests that variation in activity and inducibility of CYP2E1, in relation to alcohol or red meat intake, contributes to the development of colorectal cancer.

Original languageEnglish
Pages (from-to)235-241
Number of pages7
JournalCancer Epidemiology Biomarkers and Prevention
Volume18
Issue number1
DOIs
Publication statusPublished - Jan 1 2009

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Cytochrome P-450 CYP2E1
Genetic Polymorphisms
Colorectal Neoplasms
Alleles
Alcohols
Confidence Intervals
Rectal Neoplasms
Colonic Neoplasms
Odds Ratio
Social Adjustment
Linkage Disequilibrium
Carcinogens
Life Style
Body Mass Index
Genes

All Science Journal Classification (ASJC) codes

  • Epidemiology
  • Oncology

Cite this

Genetic polymorphisms of CYP2E1 and risk of colorectal cancer : The fukuoka colorectal cancer study. / Morita, Makiko; Le Marchand, Loïc; Kono, Suminori; Yin, Guang; Toyomura, Kengo; Nagano, Jun; Mizoue, Tetsuya; Mibu, Ryuichi; Tanaka, Masao; Kakeji, Yoshihiro; Maehara, Yoshihiko; Okamura, Takeshi; Ikejiri, Koji; Futami, Kitaroh; Maekawa, Takafumi; Yasunami, Yohichi; Takenaka, Kenji; Ichimiya, Hitoshi; Imaizumi, Nobutoshi.

In: Cancer Epidemiology Biomarkers and Prevention, Vol. 18, No. 1, 01.01.2009, p. 235-241.

Research output: Contribution to journalArticle

Morita, M, Le Marchand, L, Kono, S, Yin, G, Toyomura, K, Nagano, J, Mizoue, T, Mibu, R, Tanaka, M, Kakeji, Y, Maehara, Y, Okamura, T, Ikejiri, K, Futami, K, Maekawa, T, Yasunami, Y, Takenaka, K, Ichimiya, H & Imaizumi, N 2009, 'Genetic polymorphisms of CYP2E1 and risk of colorectal cancer: The fukuoka colorectal cancer study', Cancer Epidemiology Biomarkers and Prevention, vol. 18, no. 1, pp. 235-241. https://doi.org/10.1158/1055-9965.EPI-08-0698
Morita, Makiko ; Le Marchand, Loïc ; Kono, Suminori ; Yin, Guang ; Toyomura, Kengo ; Nagano, Jun ; Mizoue, Tetsuya ; Mibu, Ryuichi ; Tanaka, Masao ; Kakeji, Yoshihiro ; Maehara, Yoshihiko ; Okamura, Takeshi ; Ikejiri, Koji ; Futami, Kitaroh ; Maekawa, Takafumi ; Yasunami, Yohichi ; Takenaka, Kenji ; Ichimiya, Hitoshi ; Imaizumi, Nobutoshi. / Genetic polymorphisms of CYP2E1 and risk of colorectal cancer : The fukuoka colorectal cancer study. In: Cancer Epidemiology Biomarkers and Prevention. 2009 ; Vol. 18, No. 1. pp. 235-241.
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AU - Toyomura, Kengo

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