Relationship between polymorphisms of the lipid metabolism-related gene PLA2G16 and risk of colorectal cancer in the Chinese population

• Published in: Functional & integrative genomics Vol. 19; no. 2; pp. 227 - 236
• Main Authors: Xie, Xiao-Nv, Yu, Jing, Zhang, Li-Hua, Luo, Zhi-Ying, Ouyang, Dong-Sheng, Zheng, Ling-Jie, Wang, Chun-Yang, Yang, Li, Chen, Ling, Tan, Zhi-Rong
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.03.2019; Springer Nature B.V
• Subjects: Adult; Animal Genetics and Genomics; Biochemistry; Bioinformatics; Biomedical and Life Sciences; Body mass index; Cell Biology; Colorectal cancer; Colorectal carcinoma; Colorectal Neoplasms - genetics; Colorectal Neoplasms - pathology; Female; Gene polymorphism; Gene regulation; Haplotypes; Humans; Life Sciences; Linkage disequilibrium; Lipid Metabolism; Lymph nodes; Lymphatic Metastasis; Male; Metabolism; Metastases; Microbial Genetics and Genomics; Middle Aged; Original Article; Phospholipase A2; Phospholipases A2, Calcium-Independent - genetics; Plant Genetics and Genomics; Polymorphism; Polymorphism, Single Nucleotide; Population studies; Risk factors; Single-nucleotide polymorphism; Tumor Suppressor Proteins - genetics; Lipid metabolism; Susceptibility; Colorectal cancer; Polymorphism; PLA2G16
• ISSN: 1438-793X; 1438-7948
• DOI: 10.1007/s10142-018-0642-8

This study aimed to investigate the relationship between polymorphisms in the lipid metabolism-related gene PLA2G16 encoding Group XVI phospholipase A2 and the risk of colorectal cancer (CRC) in the Chinese population. A total of 185 patients with CRC and 313 healthy controls were enrolled. Thirteen single nucleotide polymorphisms (SNPs) of PLA2G16 were genotyped with SNPscan™. Linkage disequilibrium and haplotypes were analysed using Haploview software. Multivariate logistic regression was used to determine the association between the various genotypes and CRC risk. We identified five PLA2G16 SNPs (rs11600655, rs3809072, rs3809073, rs640908 and rs66475048) that were associated with CRC risk after adjusting for age, sex and body mass index. Two haplotypes (CTC and GGA) of rs11600655, rs3809073 and rs3809072, were relevant to CRC risk. The rs11600655 polymorphism was also associated with lymph node metastasis and CRC staging, while rs3809073 and rs3809072 may affect transcriptional regulation of PLA2G16 by altering transcription factor binding. These findings suggest that PLA2G16 polymorphisms—especially CTC and GGA haplotypes—increase CRC susceptibility. Importantly, we showed that the rs11600655 CC, rs640908 CT and rs66475048 GA genotypes are independent risk factors for CRC in the Chinese population.