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International Journal of Hematology

27-03-2024 | Lymphoma | Progress in Hematology

Recent advances in understanding the biology of follicular lymphoma

Author: Momoko Nishikori

Published in: International Journal of Hematology

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Abstract

Follicular lymphoma (FL), the most common indolent B-cell lymphoma, develops over decades before manifesting as overt disease. BCL2 overexpression by t(14;18) confers a survival advantage to B cells during the germinal center reaction, and abnormalities in epigenetic modifier genes lead to desynchronization of gene expression changes in germinal center B cells. Studies in mouse models have shown that BCL2 overexpression and epigenetic deregulation in B cells cooperatively promote lymphomagenesis. The immune microenvironment also plays an essential role in the biology of FL, and many molecular prognostic indicators based on the immune microenvironment have been proposed. However, high-risk gene signatures do not appear to be consistent between patients receiving different chemotherapies. FL cells frequently carry N-linked glycosylation motifs within the immunoglobulin gene, leading to chronic activation of the B-cell receptor (BCR). Recent evidence suggests that this chronic BCR signaling drives FL polarization toward a dark-zone phenotype and promotes clonal evolution. Since both epigenetic and post-transcriptional modifications of B cells have been implicated in the early stage of FL development, it may be possible to use novel non-chemotherapeutic approaches that interfere with the immunobiology in treatment or early prevention of FL.
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Metadata
Title
Recent advances in understanding the biology of follicular lymphoma
Author
Momoko Nishikori
Publication date
27-03-2024
Publisher
Springer Nature Singapore
Published in
International Journal of Hematology
Print ISSN: 0925-5710
Electronic ISSN: 1865-3774
DOI
https://doi.org/10.1007/s12185-024-03764-6
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