Detailed Information on Publication Record
2018
miR-150 downregulation contributes to the high-grade transformation of follicular lymphoma by upregulating FOXP1 levels
MUSILOVÁ, Kateřina, Ján DEVÁN, Kateřina AMRUZ ČERNÁ, Václav ŠEDA, Gabriela PAVLASOVÁ et. al.Basic information
Original name
miR-150 downregulation contributes to the high-grade transformation of follicular lymphoma by upregulating FOXP1 levels
Authors
MUSILOVÁ, Kateřina (203 Czech Republic, belonging to the institution), Ján DEVÁN (703 Slovakia, belonging to the institution), Kateřina AMRUZ ČERNÁ (203 Czech Republic, belonging to the institution), Václav ŠEDA (203 Czech Republic, belonging to the institution), Gabriela PAVLASOVÁ (203 Czech Republic, belonging to the institution), Sonali SHARMA (356 India, belonging to the institution), Jan OPPELT (203 Czech Republic, belonging to the institution), R. PYTLIK (203 Czech Republic), V. PROCHAZKA (203 Czech Republic), Z. PROUZOVA (203 Czech Republic), Martin TRBUŠEK (203 Czech Republic, belonging to the institution), L. ZLAMALIKOVA (203 Czech Republic), K. LISKOVA (203 Czech Republic), L. KRUZOVA (203 Czech Republic), M. JAROSOVA (203 Czech Republic), Andrea MAREČKOVÁ (203 Czech Republic), C. KORNAUTH (40 Austria), I. SIMONITSCH-KLUPP (40 Austria), A.I. SCHIEFER (40 Austria), O. MERKEL (40 Austria), H. MOCIKOVA (203 Czech Republic), P. BURDA (203 Czech Republic), K.M. POLAKOVA (203 Czech Republic), L. KREN (203 Czech Republic), Jiří MAYER (203 Czech Republic, belonging to the institution), C.S. ZENT (840 United States of America), M. TRNENY (203 Czech Republic), A.G. EVANS (840 United States of America), Andrea JANÍKOVÁ (203 Czech Republic, belonging to the institution) and Marek MRÁZ (203 Czech Republic, guarantor, belonging to the institution)
Edition
Blood, Washington DC, USA, American Society of Hematology, 2018, 0006-4971
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
30205 Hematology
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 16.601
RIV identification code
RIV/00216224:14740/18:00105661
Organization unit
Central European Institute of Technology
UT WoS
000451634400012
Keywords in English
B-CELL LYMPHOMA; TRANSCRIPTION FACTOR; T-CELLS; C-MYC; HISTOLOGIC TRANSFORMATION; COPY-NUMBER; KAPPA-B; EXPRESSION; SURVIVAL; MICRORNAS
Tags
International impact, Reviewed
Změněno: 13/3/2019 16:23, Mgr. Pavla Foltynová, Ph.D.
Abstract
V originále
Follicular lymphoma (FL) is a common indolent B-cell malignancy with a variable clinical course. An unfavorable event in its course is histological transformation to a high-grade lymphoma, typically diffuse large B-cell lymphoma. Recent studies show that genetic aberrations ofMYC or its overexpression are associated with FL transformation (tFL). However, the precise molecular mechanisms underlying tFL are unclear. Here we performed the first profiling of expression of microRNAs (miRNAs) in paired samples of FL and tFL and identified 5 miRNAs as being differentially expressed. We focused on one of these miRNAs, namely miR-150, which was uniformly downmodulated in all examined tFLs (similar to 3.5-fold), and observed that high levels of MYC are responsible for repressing miR-150 in tFL by binding in its upstream region. This MYC-mediated repression of miR-150 in B cells is not dependent on LIN28A/B proteins, which influence the maturation of miR-150 precursor (pri-miR-150) in myeloid cells. We also demonstrated that low miR-150 levels in tFL lead to upregulation of its target, namely FOXP1 protein, which is a known positive regulator of cell survival, as well as B-cell receptor and NF-kappa B signaling in malignant B cells. We revealed that low levels of miR-150 and high levels of its target, FOXP1, are associated with shorter overall survival in FL and suggest that miR-150 could serve as a good biomarker measurable in formalin-fixed paraffin-embedded tissue. Overall, our study demonstrates the role of theMYC/miR-150/FOXP1 axis in malignant B cells as a determinant of FL aggressiveness and its high-grade transformation.
Links
LQ1601, research and development project |
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NV16-29622A, research and development project |
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NV18-03-00054, research and development project |
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