Please use this identifier to cite or link to this item: https://biore.bio.bg.ac.rs/handle/123456789/362
Title: Vitamin D receptor, CYP27B1 and CYP24A1 genes polymorphisms association with oral cancer risk and survival
Authors: Zeljić, Katarina 
Supic, Gordana
Stamenković Radak, Marina 
Jovic, Nebojsa
Kozomara, Ruzica
Magic, Zvonko
Keywords: CYP24A1;CYP27B1;Genetic polymorphisms;Oral cancer risk;Survival;Vitamin D receptor
Issue Date: 1-Nov-2012
Journal: Journal of Oral Pathology and Medicine
Abstract: 
Background: Genetic polymorphisms of vitamin D receptor gene (VDR) and genes involved in vitamin D metabolism pathway, CYP27B1 and CYP24B1, may affect individual susceptibility to oral squamous cell carcinoma. The purpose of this study was to evaluate the associations between VDR, CYP27B1 and CYP24A1 gene polymorphisms with oral cancer risk and survival. Methods: Study cohort consisted of 110 patients with oral cancer and 122 healthy controls. The genotypes of the analysed genes were determined by PCR-RFLP or real-time PCR method. Results: The significant decrease of oral cancer risk was observed in individuals with heterozygote genotype of CYP24A1 gene (rs2296241) (odds ratio 0.281, P=0.000) in comparison with wild type. Patients with VDR FokI ff wild type genotype had significantly worse overall survival (P=0.012, log rank) compared with heterozygous and mutated genotype combined. A stratified analysis by the lymph node involvement and tumour stage showed that ff is associated with poor survival in groups with and without lymph node involvement (P=0.025, P=0.040, respectively) and in stage III tumours (P=0.026). Multivariate Cox's regression analysis revealed that VDR FokI could be considered an independent prognostic factor. Conclusion: Our findings indicate that CYP24A1 gene polymorphism might have an influence on the susceptibility to oral cancer. VDR FokI polymorphism was associated with worse survival and could be considered as an independent prognostic marker. © 2012 John Wiley & Sons A/S.
URI: https://biore.bio.bg.ac.rs/handle/123456789/362
ISSN: 0904-2512
DOI: 10.1111/j.1600-0714.2012.01164.x
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