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Clinical and pathological implications of miRNA in bladder cancer

Authors Braicu C, Cojocneanu-Petric R, Chira S, Truta A, Floares A, Petrut B, Achimas-Cadariu P, Berindan-Neagoe I

Received 19 August 2014

Accepted for publication 11 October 2014

Published 20 January 2015 Volume 2015:10(1) Pages 791—800

DOI https://doi.org/10.2147/IJN.S72904

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 5

Editor who approved publication: Dr Thomas J Webster

Cornelia Braicu,1 Roxana Cojocneanu-Petric,1,2 Sergiu Chira,1 Anamaria Truta,1,3 Alexandru Floares,4 Bogdan Petrut,5,6 Patriciu Achimas-Cadariu,7,8,* Ioana Berindan-Neagoe1,9–11,*

1Research Center for Functional Genomics, Biomedicine and Translational Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; 2Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca, Romania; 3Department of Medical Genetics, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; 4Solutions of Artificial Intelligence Applications, Cluj-Napoca, Romania; 5Department of Urology, The Oncology Institute “ Prof Dr. Ion Chiricuta”, Cluj-Napoca, Romania; 6Department of Urology, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; 7Department of Surgery, The Oncology Institute “ Prof Dr. Ion Chiricuta”, Cluj-Napoca, Romania; 8Department of Surgical Oncology and Gynaecological Oncology, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; 9Department of Immunology, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; 10Department of Functional Genomics and Experimental Pathology, The Oncology Institute “ Prof Dr. Ion Chiricuta”, Cluj-Napoca, Romania; 11Department of Experimental Therapeutics M.D. Anderson Cancer Center Houston, TX, USA

Abstract: MicroRNAs (miRNAs) are small, noncoding RNA species with a length of 20–22 nucleotides that are recognized as essential regulators of relevant molecular mechanisms, including carcinogenesis. Current investigations show that miRNAs are detectable not only in different tissue types but also in a wide range of biological fluids, either free or trapped in circulating microvesicles. miRNAs were proven to be involved in cell communication, both in pathological and physiological processes. Evaluation of the global expression patterns of miRNAs provides key opportunities with important practical applications, taking into account that they modulate essential biological processes such as epithelial to mesenchymal transition, which is a mechanism relevant in bladder cancer. miRNAs collected from biological specimens can furnish valuable evidence with regard to bladder cancer oncogenesis, as they also have been linked to clinical outcomes in urothelial carcinoma. Therefore, a single miRNA or a signature of multiple miRNAs may improve risk stratification of patients and may supplement the histological diagnosis of urological tumors, particularly for bladder cancer.

Keywords: bladder cancer, miRNA, prognostic, diagnostic

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