07 November 2019 : Meta-Analysis
Association Between Head and Neck Cancers and Polymorphisms 869T/C, 509C/T, and 915G/C of the Transforming Growth Factor-β1 Gene: A Meta-Analysis of Case-Control StudiesYanli Qu1ABE, Jilong Feng2CF, Lijun Wang2BD, Huan Wang1AE, Hangyu Liu1CD, Xiaohu Sun1BF, Ji Li1AD, Hong Yu1ADG*
Med Sci Monit 2019; 25:8389-8402
BACKGROUND: Worldwide, head and neck cancers are the eighth most common malignancy. Single nucleotide polymorphisms (SNPs) are associated with susceptibility to cancer and sensitivity to radiotherapy and chemotherapy. The inflammatory cytokine, transforming growth factor-β1 (TGF-β1), is involved in the progression of malignancy. This study aimed to systematically review the literature and undertake a meta-analysis of case-control studies on the association between 869T/C, 509C/T, and 915G/C polymorphisms of the TGF-β1 gene and head and neck cancers.
MATERIAL AND METHODS: The published literature in the English and Chinese languages were searched to identify relevant studies reporting TGF-β1 gene polymorphisms and head and neck cancer. The PubMed, Embase, Wanfang Data, and CNKI databases were searched. Data were extracted from eligible studies, and meta-analysis was performed using Stata version 12.0 software.
RESULTS: Ten case-control studies were identified. There was a significant association between the 869T/C polymorphism of the TGF-β1 gene and susceptibility to head and neck cancer. Subgroup analysis showed that the 869T/C polymorphism was not significantly associated with the histological type of head and neck cancer, but was significantly associated with susceptibility to head and neck cancer in the Asian population. The 509C/T polymorphism of the TGF-β1 gene was not significantly associated with susceptibility to nasopharyngeal cancer (NPC), but the 915G/C polymorphism was associated with susceptibility to oral cancer.
CONCLUSIONS: Data from this meta-analysis showed that the 869T/C and 915G/C polymorphisms of the TGF-β1 gene might be associated with susceptibility to head and neck cancer.
Keywords: Head and Neck Neoplasms, meta-analysis, Transforming Growth Factor beta, Asians, Case-Control Studies, China, Genetic Association Studies, Genetic Predisposition to Disease, Genotype, Nasopharyngeal Neoplasms, Odds Ratio, Polymorphism, Single Nucleotide, Risk Factors, Transforming Growth Factor beta1
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