susceptibility

A single nucleotide polymorphism in the promoter region of let-7 family is associated with lung cancer risk in Chinese

L. Q. Shen, Xie, Y. Z., Qian, X. F., Zhuang, Z. X., Jiao, Y., and Qi, X. F., “A single nucleotide polymorphism in the promoter region of let-7 family is associated with lung cancer risk in Chinese”, vol. 14, pp. 4505-4512, 2015.

Lung cancer is a complex polygenic disease and many genetic factors are involved in the development of the disease. As one of the most important and widely studied families of microRNA, let-7 appears to play an important role in initiation and progression of lung cancer. Any small changes in miRNA level or its target point can cause significant changes in gene function. In this study, we examined whether a single-nucleotide polymorphism in the promoter region of the let-7 family (rs10877887) is associated with the susceptibility to and prognosis of lung adenocarcinoma cancer.

Cyclin D1 G870A gene polymorphism and risk of leukemia and hepatocellular carcinoma: a meta-analysis

Y. Zhao, He, H. R., Wang, M. Y., Ren, X. D., Zhang, L., Dong, Y. L., and Lu, J., “Cyclin D1 G870A gene polymorphism and risk of leukemia and hepatocellular carcinoma: a meta-analysis”, vol. 14, pp. 5171-5180, 2015.

Cyclin D1 (CCND1) is a key protein involved in cell-cycle regulation, and the CCND1 G870A polymorphism is associated with many types of malignancy. Studies examining the associations between this G870A polymorphism and susceptibility to leukemia and hepatocellular carcinoma (HCC) have shown inconsistent results. Therefore, we conducted a meta-analysis to clarify these associations. A search of the PubMed database yielded 7 relevant articles: 3 pertaining to leukemia and 4 to HCC. The odds ratios (ORs) from individual studies were pooled using a fixed or random-effect model.

Association between a single nucleotide polymorphism of the XRCC1 gene and hepatocellular carcinoma susceptibility in the Chinese Han population

X. F. Li, Chen, Y. X., Ye, W. W., Tao, X. F., Zhu, J. H., Wu, S., and Lou, L. Q., “Association between a single nucleotide polymorphism of the XRCC1 gene and hepatocellular carcinoma susceptibility in the Chinese Han population”, vol. 13, pp. 160-166, 2014.

The human X-ray repair cross-complementing protein 1 (XRCC1) gene is a potentially gene determining hepatocellular carcinoma (HCC) susceptibility. The purpose of this study was to evaluate the association between XRCC1 and susceptibility to HCC. The association of XRCC1 polymorphisms with HCC susceptibility was investigated in 460 HCC patients and 463 controls using the created restriction site-polymerase chain reaction method.

Aberrant DNA methylation of the P16, MGMT, and hMLH1 genes in combination with the methylenetetrahydrofolate reductase C677T genetic polymorphism and folate intake in gastric cancer

J. Lin, Zeng, R. M., Li, R. N., and Cao, W. H., “Aberrant DNA methylation of the P16, MGMT, and hMLH1 genes in combination with the methylenetetrahydrofolate reductase C677T genetic polymorphism and folate intake in gastric cancer”, vol. 13, pp. 2060-2068, 2014.

Epidemiological studies have indicated that folate metabolism is correlated with increased risk of gastric cancer. Since methylenetetrahydrofolate reductase (MTHFR) is an important enzyme involved in folate metabolism, in this study, we examined whether polymorphisms and haplotypes of MTHFR are correlated with the risk of gastric cancer. The polymorphisms MTHFR C677T and MTHFR A1298C were genotyped by polymerase chain reaction (PCR)-restriction fragment length polymorphism (RFLP) analysis in 285 patients and 570 healthy controls.

Genetic variation in ERCC1 and XPF genes and breast cancer risk

X. H. Pei, Yang, Z., Lv, X. Q., and Li, H. X., “Genetic variation in ERCC1 and XPF genes and breast cancer risk”, vol. 13, pp. 2259-2267, 2014.

Breast cancer is one of the most frequently diagnosed cancer in women worldwide, and we conducted a case-control study by genotyping seven potentially functional SNPs, three in ERCC1 and four in XPF, in a Chinese population of 417 breast cancer cases and 417 cancer-free controls. Three SNPs in ERCC1 and four SNPs in XPF were genotyped by using the Taqman Universal PCR Master Mix in the GeneAmp® PCR System 9700 with Dual 384-Well Sample Block Module, and assays were performed on a 384-well plate on the Sequenom MassARRAY platform.

Association analysis of colorectal cancer susceptibility variants with gastric cancer in a Chinese Han population

C. - P. Zhou, Pan, H. - Z., Li, F. - X., Hu, N. - Y., Li, M., and Yang, X. - X., “Association analysis of colorectal cancer susceptibility variants with gastric cancer in a Chinese Han population”, vol. 13, pp. 3673-3680, 2014.

Evidence suggests that some genetic variants are risk factors for both colorectal cancer (CRC) and gastric cancer (GC). Thus, we selected 12 reported single nucleotide polymorphisms (SNPs) from genome-wide association studies of CRC and conducted this case-control study to assess the associations between these SNPs and the risk for GC in a southern Chinese population. All SNPs were genotyped in 249 individuals with GC and 292 healthy population-matched subjects using the Sequenom MassArray iPLEX System.

Implication of polymorphisms in DNA repair genes with an increased risk of hepatocellular carcinoma

J. S. Wu, Chen, Y. P., Wang, L. C., Yang, Y. J., Deng, C. W., Hou, B. X., He, Z. L., and Chen, J. X., “Implication of polymorphisms in DNA repair genes with an increased risk of hepatocellular carcinoma”, vol. 13, pp. 3812-3818, 2014.

We explored the association between 4 XRCC1 (Arg194Trp and Arg399Gln) and XPD (Asp312Asn and Lys751Gln) polymorphisms with the development and prognosis of hepatocellular carcinoma (HCC). A total of 218 cases with HCC and 277 healthy controls were included in the study. Genotyping of the XRCC1 (Arg194Trp and Arg399Gln) and XPD (Asp312Asn and Lys751Gln) polymorphisms was performed in a 384-well plate format on the Sequenom MassARRAY platform.

Vitamin D receptor genetic variants are associated with susceptibility of gallbladder adenocarcinoma in a Chinese cohort

Z. Li, Yuan, W. T., Ning, S. J., and Zhang, S. J., “Vitamin D receptor genetic variants are associated with susceptibility of gallbladder adenocarcinoma in a Chinese cohort”, vol. 13, pp. 5387-5394, 2014.

The aim of this study was to test for the possible association between vitamin D receptor (VDR) genetic variants and susceptibility to gallbladder cancer (GBC). A total of 291 GBC cases were recruited and 396 gender- and age-matched healthy volunteers were enrolled as controls. The VDR gene polymorphisms were determined in all subjects. The genotype and the allele frequencies of ApaI, BsmI, and TaqI polymorphisms were not significantly different between GBC subjects and controls.

Common polymorphisms in the HIF-1αgene confer susceptibility to digestive cancer: a meta-analysis

J. J. Xu, Zou, L. Y., Yang, L., He, X. L., and Sun, M., “Common polymorphisms in the HIF-1αgene confer susceptibility to digestive cancer: a meta-analysis”, vol. 13, pp. 6228-6238, 2014.

Recent evidence suggests that common functional polymorphisms in the hypoxia inducible factor-1α (HIF-1α) gene may play an important role in the development and progression of digestive cancer, but individually published results are inconclusive. Our meta-analysis is aimed to derive a more precise estimation of the relationships between HIF-1αgene polymorphisms and digestive cancer risk.

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