alexa Decreased Expression Levels of Tumor Suppressor MicroRNAs in Hairy Cell Leukemia
ISSN: 2329-6917

Journal of Leukemia
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Research Article

Decreased Expression Levels of Tumor Suppressor MicroRNAs in Hairy Cell Leukemia

Zsuzsanna Gaal1*, Balint Laszlo Balint2, Laszlo Rejto3 and Eva Olah4

1Department of Physiology, University of Debrecen, Hungary

2Department of Biochemistry and Molecular Biology, University of Debrecen, Hungary

3Department of Internal Medicine, University of Debrecen, Hungary

4Department of Pediatrics, University of Debrecen, Hungary

Corresponding Author:
Zsuzsanna Gaal
Department of Physiology, H-4012 Debrecen
Nagyerdei krt 98, 4012, Hungary
Tel: +36(52)255-575
E-mail: [email protected]

Received Date: November 08, 2014; Accepted Date: December 27, 2014; Published Date: January 01, 2015

Citation: Gaal Z, Balint BL, Rejto L, Olah E (2015) Decreased Expression Levels of Tumor Suppressor MicroRNAs in Hairy Cell Leukemia . J Leuk (Los Angel) (Los Angel) 3:169. doi: 10.4172/2329-6917.1000169

Copyright: © 2015 Gaal Z, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use,distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Hairy cell leukemia is a chronic, clonal disease of the hemopoetic stem cell. Although our knowledge on its pathogenesis has increased a lot during the previous years, further details are needed to provide a more personalized, and therefore more successful treatment for patients. New advancements in the growing field of epigenetics may contribute to the finding of novel therapeutic target molecules. Similarly to acute leukemia, hairy cell leukemia also possesses a unique microRNA expression pattern. Decreased levels of tumor suppressor microRNAs lead to the elevation of the expression levels of their oncogenic targets. During our investigations on the level of let-7b and miR-124 in the bone marrow sample of a patient suffering from hairy cell leukemia, decreased expression levels have been found in the case of both microRNAs. These alterations also influence the activity of the MAPK signaling pathway, resulting from the regulation of its members by microRNAs including those mentioned above. Our results support new details about the connection between altered microRNA expression levels and signal transduction pathways in hairy cell leukemia.

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