Tumor Expression of miR-10b, miR-21, miR-143 and miR-145 Is Related to Clinicopathological Features of Gastric Cancer in a Central European Population

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Authors

OBERMANNOVA R. LOJOVÁ Martina VYCHYTILOVÁ Petra GRELL P. CHO W.C. SACHLOVA M. SVOBODA M. VYZULA R. SLABÝ Ondřej

Year of publication 2018
Type Article in Periodical
Magazine / Source Anticancer Research
MU Faculty or unit

Central European Institute of Technology

Citation
Doi http://dx.doi.org/10.21873/anticanres.12651
Keywords Gastric cancer; microRNA; diagnosis; prognosis
Description Background/Aim: In Western countries, most patients with gastric cancer (GC) present in advanced stages. Therefore, there is imminent clinical need for novel diagnostic and prognostic biomarkers. Deregulation of microRNAs has been reported as a frequent event in GC development in a number of studies. Our study validated the potential of microRNAs to serve as diagnostic and prognostic biomarkers in patients with GC from the Central European population. Materials and Methods: Using quantitative real-time polymerase chain reaction, expression levels of six microRNAs (miR-10b, -21, -93, -107, - 143 , and -145) were examined in 67 tumor tissues and 67 paired adjacent gastric tissues, and correlated with clinicopathological features of GC patients. Results: Expression levels of miR-10b, miR-21, miR-93 , and miR-107 were significantly higher in GC samples compared to non-tumor tissue. Furthermore, the expression levels of miR-10b, miR-143, and miR-145 positively correlated with advanced stages, and increased expression of miR-10b, miR-21 and miR-145 was significantly associated with worse prognosis of gastric cancer patients. Conclusion: Our results indicate that selected tissue microRNAs have the potential to serve as relevant diagnostic and prognostic biomarkers of GC in a central European population.
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