TGFβ-1 and TGFBR2 polymorphisms, cooking oil fume exposure and risk of lung adenocarcinoma in Chinese nonsmoking females: a case control study

BMC Medical Genetics

Baosen Zhou¹  Peng Guan¹  Wei Wu¹  Xuelian Li¹  Yan Wan¹  Kun Li¹  Zhihua Yin¹  Yangwu Ren¹ 

[1] Liaoning Provincial Department of Education, Key Laboratory of Cancer Etiologic and Prevention (China Medical University), Liaoning 110122, China

关键词: Nonsmoking females;    Polymorphisms;    Lung adenocarcinoma;    Transforming growth factor-β;   

Others  :  1177682
DOI  :  10.1186/s12881-015-0170-5

 received in 2013-03-04, accepted in 2015-03-27,  发布年份 2015

【 摘 要 】

Background

Transforming growth factor-β (TGF-β) plays an important role in regulating cellular functions, and many studies have demonstrated important roles for TGF-β in various cancers. Single nucleotide polymorphisms (SNPs) of TGF-β may influence lung carcinogenesis. The aim of this study was to test whether TGF-β1 C509T and TGF-β receptor II (TGFBR2) G-875A polymorphisms were associated with lung adenocarcinoma in nonsmoking females.

Methods

A hospital-based case–control study was performed in Chinese nonsmoking females. Genotyping was performed using TaqMan SNP genotyping assay, and demographic data and environmental exposure were collected by trained interviewers after informed consents were obtained.

Results

A total of 272 (95.4%) cases and 313 (99.4%) controls were successfully genotyped, and the results showed that the polymorphic allele frequencies of C509T and G875A were similar among lung adenocarcinoma patients and controls (P=0.589 and 0.643, respectively). However, when the data were stratified for cooking oil fume exposure, the TT genotype of the TGFB1 C509T polymorphism showed a significantly decreased risk for lung adenocarcinoma compared with the CC genotype (adjusted OR=0.362, 95% CI=0.149–0.878, P=0.025).

Conclusions

TGF-β1 gene C509T polymorphism might be associated with decreased risk of lung adenocarcinoma in Chinese females exposed to cooking oil fumes, but no association was observed TGFBR2 gene G875A polymorphism.

【 授权许可】

   
2015 Ren et al.; licensee BioMed Central.

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