J 2018

New concepts in follicular lymphoma biology: From BCL2 to epigenetic regulators and non-coding RNAs

DEVÁN, Ján, Andrea JANÍKOVÁ and Marek MRÁZ

Basic information

Original name

New concepts in follicular lymphoma biology: From BCL2 to epigenetic regulators and non-coding RNAs

Authors

DEVÁN, Ján (703 Slovakia, belonging to the institution), Andrea JANÍKOVÁ (203 Czech Republic, belonging to the institution) and Marek MRÁZ (203 Czech Republic, guarantor, belonging to the institution)

Edition

SEMINARS IN ONCOLOGY, PHILADELPHIA, W B SAUNDERS CO-ELSEVIER INC, 2018, 0093-7754

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30204 Oncology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 3.606

RIV identification code

RIV/00216224:14740/18:00105658

Organization unit

Central European Institute of Technology

UT WoS

000454187700005

Keywords in English

Follicular lymphoma; Epigenetics; BCR signaling; Tumor microenvironment; Transformation; miRNA

Tags

International impact, Reviewed
Změněno: 18/3/2019 14:21, Mgr. Pavla Foltynová, Ph.D.

Abstract

V originále

The molecular pathogenesis of follicular lymphoma (FL) was partially revealed 3 decades ago, with the discovery of the translocation that brings BCL2 under the influence of immunoglobulin heavy chain enhancers in a vast majority of cases. Despite the importance of this seminal observation, it has become increasingly clear that additional genetic alterations need to occur to trigger neoplastic transformation and disease progression. The evolution of FL involves developmental arrest and disruption of the normal function of one or more of epigenetic regulators including KMT2D/MLL2, EZH2, CBP/CREBBP, p300/EP300, and HIST1H1 in >95% of cases. B-cells "arrested" in germinal centers acquire dozens of additional genetic aberrations that influence key pathways controlling their physiological development including B Cell Receptor (BCR) signaling, PI3K/AKT, TLR, mTOR, NF-kappa B, JAK/STAT, MAPK, CD40/CD4OL, chemokine, and interleukin signaling. Additionally, most cases of FL do not result from linear accumulation of genomic aberrations, but rather evolve from a common progenitor cell population by diverse evolution, creating multiple FL subclones in one patient. Moreover, one of the subclones might acquire a combination of aberrations involving genes controlling cell survival and proliferation including MDM2, CDKN2A/B, BCL6, MYC, TP53, beta 2M, FOXO1, MYD88, STAT3, or miR-17-92, and this can lead to the transformation of an initially indolent FL to an aggressive lymphoma (2%-3% risk per year). The complexity of the disease is also underscored by the importance of its interactions with the microenvironment that can substantially influence disease development and prognosis. Interpreting individual aberrations in relation to their impact on normal processes, their frequency, position in the disease evolution, and the consequences of their (co)occurrence, are the basis for understanding FL pathogenesis. This is necessary for the identification of patients with risk of early progression or transformation, for the development of novel targeted therapies, and for personalized treatment approaches. In this review, we summarize recent knowledge of molecular pathways and microenvironmental components involved in FL biology, and discuss them in the context of physiological B-cell development, FL evolution, and targeted therapies. (C) 2018 Elsevier Inc. All rights reserved.

Links

NV18-03-00054, research and development project
Name: ÚLOHA MICRORNA A JEJICH CÍLOVÝCH MOLEKUL V TRANSFORMACI FOLIKULÁRNÍHO LYMFOMU A AGRESIVITĚ CHRONICKÉ LYMFOCYTÁRNÍ LEUKÉMIE
Investor: Ministry of Health of the CR