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Association between TLR-9 polymorphisms and colon cancer susceptibility in Saudi Arabian female patients.
- Source :
-
OncoTargets & Therapy . Jan2017, Vol. 10, p1-11. 11p. - Publication Year :
- 2017
-
Abstract
- Objective: The authors aimed to explore the relationship between the expression/polymorphisms of TLR-9 and susceptibility to colon cancer development in the Saudi Arabian population. Methods: In total, blood samples from 115 patients with colon cancer and 102 participants without colon cancer were analyzed in this study. Three single-nucleotide polymorphisms (SNPs) were selected from the TLR-9 gene, including two sites within the TLR-9 gene's promoter region (rs352144 and rs187084) and one site in a TLR-9 intron region (rs5743839). Odds ratios (ORs) and 95% confidence intervals (CIs) were computed from logistic regression models after adjusting for age, gender, and tumor localization. To investigate the differential expression of TLR-9 in colon cancer, TLR-9 expression was evaluated using quantitative real-time reverse transcription polymerase chain reaction on 40 matched normal and colon tissues. Results: The authors found that TLR-9 expression was decreased in colon cancer tissues as compared with that in normal tissues. Moreover, significant associations between the TLR-9 rs187084 SNP and colon cancer risk were observed in female patients only. In rs187084, the T allele had a significantly lower frequency (2.8 times) in female cancer patients than in controls (0.27 vs 0.41). The TLR-9 rs352139 and rs352144 SNPs were significantly associated with colon cancer development when the tumor was located in the rectal area. Conclusion: The findings support the hypothesis that TLR-9 has an anticancer role in colon cancer development. Furthermore, genetic variation may influence colon cancer development, and SNPs in TLR-9 could serve as biomarkers for decision making in the treatment of females with rectal cancer. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 11786930
- Volume :
- 10
- Database :
- Academic Search Index
- Journal :
- OncoTargets & Therapy
- Publication Type :
- Academic Journal
- Accession number :
- 121217711
- Full Text :
- https://doi.org/10.2147/OTT.S106024