J 2012

MicroRNA-650 expression is influenced by immunoglobulin gene rearrangement and affects the biology of chronic lymphocytic leukemia

MRÁZ, Marek; Dáša DOLEŽALOVÁ; Karla PLEVOVÁ; Kateřina STAŇO KOZUBÍK; Veronika MAYEROVÁ et. al.

Basic information

Original name

MicroRNA-650 expression is influenced by immunoglobulin gene rearrangement and affects the biology of chronic lymphocytic leukemia

Authors

MRÁZ, Marek (203 Czech Republic, guarantor, belonging to the institution); Dáša DOLEŽALOVÁ (203 Czech Republic, belonging to the institution); Karla PLEVOVÁ (203 Czech Republic, belonging to the institution); Kateřina STAŇO KOZUBÍK (203 Czech Republic, belonging to the institution); Veronika MAYEROVÁ (203 Czech Republic, belonging to the institution); Kateřina ČERNÁ (203 Czech Republic, belonging to the institution); Kateřina MUSILOVÁ (203 Czech Republic, belonging to the institution); Boris TICHÝ (203 Czech Republic, belonging to the institution); Šárka PAVLOVÁ (203 Czech Republic, belonging to the institution); Marek BORSKÝ (203 Czech Republic, belonging to the institution); Jan VERNER (203 Czech Republic, belonging to the institution); Michael DOUBEK (203 Czech Republic, belonging to the institution); Yvona BRYCHTOVÁ (203 Czech Republic, belonging to the institution); Martin TRBUŠEK (203 Czech Republic, belonging to the institution); Aleš HAMPL (203 Czech Republic, belonging to the institution); Jiří MAYER (203 Czech Republic, belonging to the institution) and Šárka POSPÍŠILOVÁ (203 Czech Republic, belonging to the institution)

Edition

Blood, WASHINGTON, Amer Soc Hematology, 2012, 0006-4971

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

30200 3.2 Clinical medicine

Country of publisher

United States of America

Confidentiality degree

is not subject to a state or trade secret

References:

Impact factor

Impact factor: 9.060

RIV identification code

RIV/00216224:14740/12:00059794

Organization unit

Central European Institute of Technology

UT WoS

000300949500022

Keywords in English

CLL PATIENTS; SURVIVAL; SUBTYPES

Tags

Tags

International impact
Changed: 11/4/2013 13:02, Olga Křížová

Abstract

V originále

MicroRNAs (miRNAs) play a key role in chronic lymphocytic leukemia as well as in normal B cells. Notably, miRNA gene encoding miR-650 and its homologs overlap with several variable (V) subgenes coding for lambda immunoglobulin (IgL lambda). Recent studies describe the role of miR-650 in solid tumors, but its role in chronic lymphocytic leukemia (CLL) has not yet been studied. Our experiments demonstrate that miR-650 expression is regulated by coupled expression with its host gene for IgL lambda. This coupling provides a unique yet unobserved mechanism for microRNA gene regulation. We determine that higher expression of miR-650 is associated with a favorable CLL prognosis and influences the proliferation capacity of B cells. We also establish that in B cells, miR-650 targets proteins important in cell proliferation and survival: cyclin dependent kinase 1 (CDK1), inhibitor of growth 4 (ING4), and early B-cell factor 3 (EBF3). This study underscores the importance of miR-650 in CLL biology and normal B-cell physiology.

Links

ED1.1.00/02.0068, research and development project
Name: CEITEC - central european institute of technology
MSM0021622430, plan (intention)
Name: Funkční a molekulární charakteristiky nádorových a normálních kmenových buněk - identifikace cílů pro nová terapeutika a terapeutické strategie
Investor: Ministry of Education, Youth and Sports of the CR, Functional and molecular characteristics of cancer and normal stem cells - identification of targets for novel therapeutics and therapeutic strategies
NT11218, research and development project
Name: Funkční a strukturní změny microRNA u lymfoproliferativních malignit a jejich vliv na prognózu onemocnění a predikci léčebné odpovědi