Estrogen receptor-β gene polymorphism and colorectal cancer risk: Effect modified by body mass index and isoflavone intake

Naoko Honma, Ken Yamamoto, Keizo Ohnaka, Makiko Morita, Kengo Toyomura, Suminori Kono, Masaaki Muramatsu, Tomio Arai, Takashi Ueki, Masao Tanaka, Yoshihiro Kakeji, Yoshihiko Maehara, Takeshi Okamura, Koji Ikejiri, Kitaroh Futami, Takafumi Maekawa, Yohichi Yasunami, Kenji Takenaka, Hitoshi Ichimiya, Reiji Terasaka

Research output: Contribution to journalArticle

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Abstract

Estrogen receptor (ER)-β signaling has generally been implicated in protection against colorectal cancer. The ER-β gene cytosine-adenine (ESR2 CA) repeat polymorphism was reported to be associated with colorectal cancer, although showing contradicting results probably caused by ethnicity or age distribution of the subjects. We investigated the association between this polymorphism and the colorectal cancer risk in a community-based case-control study in Japan (685 cases/778 controls), including only subjects younger than 75. The effect modifications of the body mass index (BMI) and isoflavone intake were also examined. ESR2 CA repeat polymorphism was determined by polymerase chain reaction using fluorescein-labeled primers. CA repeat alleles were classified into short (S) allele (<22 repeats) and long (L) allele (≥22 repeats). Subjects were divided into three genotype groups (SS/SL/LL). The risk of colon cancer, but not of rectal cancer, was increased with an increasing number of L alleles among postmenopausal women; age-adjusted odds ratio (OR) for SL and LL genotypes compared with the SS genotype were 1.78 and 2.91, respectively (trend p = 0.002). Increased risks of colon cancer associated with the L allele were more evident among postmenopausal women with low BMI (<25 kg m-2) or with high isoflavone intake. Such associations were not observed among men or premenopausal women. Having longer ESR2 CA repeat increases colon cancer risk among postmenopausal women younger than 75, possibly with modification of BMI and isoflavone intake. Aging and estrogenic condition may be important in the colon cancer pathogenesis associated with ESR2 CA repeat polymorphism.

Original languageEnglish
Pages (from-to)951-958
Number of pages8
JournalInternational Journal of Cancer
Volume132
Issue number4
DOIs
Publication statusPublished - Feb 15 2012

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Isoflavones
Estrogen Receptors
Colorectal Neoplasms
Body Mass Index
Colonic Neoplasms
Alleles
Genes
Genotype
Cytosine
Age Distribution
Adenine
Rectal Neoplasms
Fluorescein
Case-Control Studies
Japan
Odds Ratio
Polymerase Chain Reaction

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

Cite this

Estrogen receptor-β gene polymorphism and colorectal cancer risk : Effect modified by body mass index and isoflavone intake. / Honma, Naoko; Yamamoto, Ken; Ohnaka, Keizo; Morita, Makiko; Toyomura, Kengo; Kono, Suminori; Muramatsu, Masaaki; Arai, Tomio; Ueki, Takashi; Tanaka, Masao; Kakeji, Yoshihiro; Maehara, Yoshihiko; Okamura, Takeshi; Ikejiri, Koji; Futami, Kitaroh; Maekawa, Takafumi; Yasunami, Yohichi; Takenaka, Kenji; Ichimiya, Hitoshi; Terasaka, Reiji.

In: International Journal of Cancer, Vol. 132, No. 4, 15.02.2012, p. 951-958.

Research output: Contribution to journalArticle

Honma, N, Yamamoto, K, Ohnaka, K, Morita, M, Toyomura, K, Kono, S, Muramatsu, M, Arai, T, Ueki, T, Tanaka, M, Kakeji, Y, Maehara, Y, Okamura, T, Ikejiri, K, Futami, K, Maekawa, T, Yasunami, Y, Takenaka, K, Ichimiya, H & Terasaka, R 2012, 'Estrogen receptor-β gene polymorphism and colorectal cancer risk: Effect modified by body mass index and isoflavone intake', International Journal of Cancer, vol. 132, no. 4, pp. 951-958. https://doi.org/10.1002/ijc.27688
Honma, Naoko ; Yamamoto, Ken ; Ohnaka, Keizo ; Morita, Makiko ; Toyomura, Kengo ; Kono, Suminori ; Muramatsu, Masaaki ; Arai, Tomio ; Ueki, Takashi ; Tanaka, Masao ; Kakeji, Yoshihiro ; Maehara, Yoshihiko ; Okamura, Takeshi ; Ikejiri, Koji ; Futami, Kitaroh ; Maekawa, Takafumi ; Yasunami, Yohichi ; Takenaka, Kenji ; Ichimiya, Hitoshi ; Terasaka, Reiji. / Estrogen receptor-β gene polymorphism and colorectal cancer risk : Effect modified by body mass index and isoflavone intake. In: International Journal of Cancer. 2012 ; Vol. 132, No. 4. pp. 951-958.
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AU - Toyomura, Kengo

AU - Kono, Suminori

AU - Muramatsu, Masaaki

AU - Arai, Tomio

AU - Ueki, Takashi

AU - Tanaka, Masao

AU - Kakeji, Yoshihiro

AU - Maehara, Yoshihiko

AU - Okamura, Takeshi

AU - Ikejiri, Koji

AU - Futami, Kitaroh

AU - Maekawa, Takafumi

AU - Yasunami, Yohichi

AU - Takenaka, Kenji

AU - Ichimiya, Hitoshi

AU - Terasaka, Reiji

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