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SMAD7 rs12953717 polymorphism contributes to increased risk of colorectal cancer

  • Research Article
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Tumor Biology

Abstract

Mothers against decapentaplegic homolog 7 (SMAD7) rs12953717 polymorphism has been implicated to alter the risk of colorectal cancer (CRC), but the results are controversial. The objective of this study was to quantitatively evaluate the association between SMAD7 rs12953717 polymorphism and CRC susceptibility. A comprehensive search was conducted to identify all eligible studies of SMAD7 rs12953717 polymorphism and CRC risk. Pooled odds ratio and 95 % confidence interval were calculated using a fixed or random effects model. Statistical analysis was performed with Review Manager 5.0 and Stata 11. A total of 11 case–control studies, including 12,058 cases and 11,444 controls, were identified. The combined results based on all studies suggested that rs12953717 was associated with CRC risk under all genetic models. When stratifying for race, the data showed that the rs12953717 was associated with a significantly increased CRC risk under all genetic models in Caucasians. Statistically significant association was found in all genetic models except in recessive model comparison in the subgroup of Asians. After stratifying the studies by study design, there was a significant association between rs12953717 polymorphism and CRC risk under all genetic models in the subgroup of population-based studies. Our study suggests that rs12953717 polymorphism is associated with an increased CRC risk.

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Authors and Affiliations

  1. Department of General Surgery, People’s Hospital of Gaomi Municipality, 77 Zhenfu Road, Gaomi, 261500, Shandong, China

    Yanliang Hu, Anhua Zhang & Jinjie Zhang

  2. Department of Radiotherapy, People’s Hospital of Gaomi Municipality, 77 Zhenfu Road, Gaomi, 261500, Shandong Province, China

    Zhifang Sun

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  1. Yanliang Hu
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  2. Zhifang Sun
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  3. Anhua Zhang
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Correspondence to Yanliang Hu.

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Hu, Y., Sun, Z., Zhang, A. et al. SMAD7 rs12953717 polymorphism contributes to increased risk of colorectal cancer. Tumor Biol. 35, 695–699 (2014). https://doi.org/10.1007/s13277-013-1095-2

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  • DOI: https://doi.org/10.1007/s13277-013-1095-2

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