Alternative RNA splicing in cancer: what about adult T-cell leukemia?

Eukaryotic cells employ a broad range of mechanisms to regulate gene expression. Among others, mRNA alternative splicing is a key process. It consists of introns removal from an immature mRNA (pre-mRNA) via a transesterification reaction to create a mature mRNA molecule. Large-scale genomic studies...

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Main Authors: Julie Tram, Jean-Michel Mesnard, Jean-Marie Peloponese
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-08-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2022.959382/full
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author Julie Tram
Jean-Michel Mesnard
Jean-Marie Peloponese
author_facet Julie Tram
Jean-Michel Mesnard
Jean-Marie Peloponese
author_sort Julie Tram
collection DOAJ
description Eukaryotic cells employ a broad range of mechanisms to regulate gene expression. Among others, mRNA alternative splicing is a key process. It consists of introns removal from an immature mRNA (pre-mRNA) via a transesterification reaction to create a mature mRNA molecule. Large-scale genomic studies have shown that in the human genome, almost 95% of protein-encoding genes go through alternative splicing and produce transcripts with different exons combinations (and sometimes retained introns), thus increasing the proteome diversity. Considering the importance of RNA regulation in cellular proliferation, survival, and differentiation, alterations in the alternative splicing pathway have been linked to several human cancers, including adult T-cell leukemia/lymphoma (ATL). ATL is an aggressive and fatal malignancy caused by the Human T-cell leukemia virus type 1 (HTLV-1). HTLV-1 genome encodes for two oncoproteins: Tax and HBZ, both playing significant roles in the transformation of infected cells and ATL onset. Here, we review current knowledge on alternative splicing and its link to cancers and reflect on how dysregulation of this pathway could participate in HTLV-1-induced cellular transformation and adult T-cell leukemia/lymphoma development.
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spelling doaj.art-8703d2ca7ce04ac0acc9a49bcbaa7f482022-12-22T02:05:38ZengFrontiers Media S.A.Frontiers in Immunology1664-32242022-08-011310.3389/fimmu.2022.959382959382Alternative RNA splicing in cancer: what about adult T-cell leukemia?Julie TramJean-Michel MesnardJean-Marie PeloponeseEukaryotic cells employ a broad range of mechanisms to regulate gene expression. Among others, mRNA alternative splicing is a key process. It consists of introns removal from an immature mRNA (pre-mRNA) via a transesterification reaction to create a mature mRNA molecule. Large-scale genomic studies have shown that in the human genome, almost 95% of protein-encoding genes go through alternative splicing and produce transcripts with different exons combinations (and sometimes retained introns), thus increasing the proteome diversity. Considering the importance of RNA regulation in cellular proliferation, survival, and differentiation, alterations in the alternative splicing pathway have been linked to several human cancers, including adult T-cell leukemia/lymphoma (ATL). ATL is an aggressive and fatal malignancy caused by the Human T-cell leukemia virus type 1 (HTLV-1). HTLV-1 genome encodes for two oncoproteins: Tax and HBZ, both playing significant roles in the transformation of infected cells and ATL onset. Here, we review current knowledge on alternative splicing and its link to cancers and reflect on how dysregulation of this pathway could participate in HTLV-1-induced cellular transformation and adult T-cell leukemia/lymphoma development.https://www.frontiersin.org/articles/10.3389/fimmu.2022.959382/fullHTLV-1Alternative splicingOncogenesisLeukemiaChemoresistance
spellingShingle Julie Tram
Jean-Michel Mesnard
Jean-Marie Peloponese
Alternative RNA splicing in cancer: what about adult T-cell leukemia?
Frontiers in Immunology
HTLV-1
Alternative splicing
Oncogenesis
Leukemia
Chemoresistance
title Alternative RNA splicing in cancer: what about adult T-cell leukemia?
title_full Alternative RNA splicing in cancer: what about adult T-cell leukemia?
title_fullStr Alternative RNA splicing in cancer: what about adult T-cell leukemia?
title_full_unstemmed Alternative RNA splicing in cancer: what about adult T-cell leukemia?
title_short Alternative RNA splicing in cancer: what about adult T-cell leukemia?
title_sort alternative rna splicing in cancer what about adult t cell leukemia
topic HTLV-1
Alternative splicing
Oncogenesis
Leukemia
Chemoresistance
url https://www.frontiersin.org/articles/10.3389/fimmu.2022.959382/full
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