ORIGINAL ARTICLE
Influence of TNF-α promoter variability on stage and grade in individuals with colorectal cancer
Submission date: 2017-10-11
Final revision date: 2017-12-26
Acceptance date: 2018-01-06
Publication date: 2018-07-06
Pol J Pathol 2018;69(2):150-156
KEYWORDS
TOPICS
ABSTRACT
Carcinogenesis is a multistep process in which inflammation plays an important role. Tumour necrosis factor a (TNF-α) is a cytokine that plays a major role in inflammation. Activity of the TNF cytokine family could influence progression of colorectal cancer (CRC). The aim of the study was to establish an association between TNF-α promoter variability and stage/grade in individuals with sporadic CRC. The study included 152 CRC patients and 107 healthy volunteers. Four single nucleotide polymorphisms (rs361525, rs1800629, rs1799724, and rs1799964) located at the promoter of TNFA gene were genotyped using commercially available TaqMan allelic discrimination assays by real-time PCR. CRC stage was described on the basis of preoperative imaging studies and postoperative histopathological report. The grade was described on the basis postoperative pathological examination of the specimen. In the case of rs361525, there was a statistically significant association with M-score (p = 0.0209). Rs361525 has significant association with tumour grade (p = 0.0260). We failed to demonstrate significant association between the other 3 SNPs and cancer grade. Rs361525 potentially could be under consideration when the survival rate and prognosis is assessed.
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