The objective of the research was to study the possible association between MALAT1 gene rs3200401 polymorphism and the survival of patients with bladder cancer and clinicopathological characteristics in bladder cancer. The venous blood of 141 patients with transitional cell carcinoma of the urinary bladder was used for study. Genotypingof MALAT1 gene rs3200401 polymorphism was performed by real-time polymerase chain reaction using the 7500 Fast Real-Time PCR System (Applied Biosystems, Foster City, USA) and Taq-Man Assays (TaqMan SNP Assay C_3246069_10). Statistical analysis was performed using the SPSS software package (version 17.0). The Kaplan - Meier estimator and Cox regression were used to check the possible association between MALAT1 rs3200401-genotypes and the age of transitional cell carcinoma of the urinary bladder onset. P values << 0,05 were considered as statistically significant. The obtained results revealed that hemoglobin concentration was lower in patients with transitional cell carcinoma of the urinary bladder and rs3 20040 ITT-genotype than in patients with rs3200401CC-genotype (p = 0,024). Herewith, fasting glucose, creatinine concentration, and tumor width were significantly higher in patients with transitional cell carcinoma of the urinary bladder and rs320040 ITT-genotype as compared to rs3200401 CC-genotype carriers (p = 0,036, p = 0,039, p = 0,028, respectively). The results of survival analysis demonstrated that transitional cell carcinoma of the urinary bladder occurred much later in persons with rs320040ITT-genotype as compared to rs3200401C-allele carriers (log rank p = 0,016), and the risk of transitional cell carcinoma of the urinary bladder onset was lower in individuals with rs3200401TT than in major rs3200401CC-allele carriers (hazard ratio = 0,413; p = 0,047). Conclusions% rs3200401 polymorphism of MALATl gene is associated with disease-free survival in Ukrainian patients with transitional cell carcinoma of the urinary bladder. Transitional cell carcinoma of the urinary bladder occurs later in persons with rs3200401TT-genotype than in individuals with rs3200401CC- and rs3200401 CT-genotypes.

 Наукова періодика України 

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• Гарбузова Вікторія Юріївна (1971–) (біологічні науки)

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