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Transcription factor networks link B-lymphocyte development and malignant transformation in leukemia

Sigvardsson, Mikael LU (2023) In Genes and Development 37(15-16). p.703-723
Abstract

Rapid advances in genomics have opened unprecedented possibilities to explore the mutational landscapes in malignant diseases, such as B-cell acute lymphoblastic leukemia (B-ALL). This disease is manifested as a severe defect in the production of normal blood cells due to the uncontrolled expansion of transformed B-lymphocyte progenitors in the bone marrow. Even though classical genetics identified translocations of transcription factor-coding genes in B-ALL, the extent of the targeting of regulatory networks in malignant transformation was not evident until the emergence of large-scale genomic analyses. There is now evidence that many B-ALL cases present with mutations in genes that encode transcription factors with critical roles in... (More)

Rapid advances in genomics have opened unprecedented possibilities to explore the mutational landscapes in malignant diseases, such as B-cell acute lymphoblastic leukemia (B-ALL). This disease is manifested as a severe defect in the production of normal blood cells due to the uncontrolled expansion of transformed B-lymphocyte progenitors in the bone marrow. Even though classical genetics identified translocations of transcription factor-coding genes in B-ALL, the extent of the targeting of regulatory networks in malignant transformation was not evident until the emergence of large-scale genomic analyses. There is now evidence that many B-ALL cases present with mutations in genes that encode transcription factors with critical roles in normal B-lymphocyte development. These include PAX5, IKZF1, EBF1, and TCF3, all of which are targeted by translocations or, more commonly, partial inactivation in cases of B-ALL. Even though there is support for the notion that germline polymorphisms in the PAX5 and IKZF1 genes predispose for B-ALL, the majority of leukemias present with somatic mutations in transcription factor-encoding genes. These genetic aberrations are often found in combination with mutations in genes that encode components of the preB-cell receptor or the IL-7/TSLP signaling pathways, all of which are important for early B-cell development. This review provides an overview of our current understanding of the molecular interplay that occurs between transcription factors and signaling events during normal and malignant B-lymphocyte development.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
B-ALL, B-lymphocytes, transcription factors]
in
Genes and Development
volume
37
issue
15-16
pages
21 pages
publisher
Cold Spring Harbor Laboratory Press (CSHL)
external identifiers
  • pmid:37673459
  • scopus:85171900073
ISSN
0890-9369
DOI
10.1101/gad.349879.122
language
English
LU publication?
yes
id
951436c9-48a8-44ba-8b45-48b75753864e
date added to LUP
2023-12-19 14:07:39
date last changed
2024-04-18 00:28:43
@article{951436c9-48a8-44ba-8b45-48b75753864e,
  abstract     = {{<p>Rapid advances in genomics have opened unprecedented possibilities to explore the mutational landscapes in malignant diseases, such as B-cell acute lymphoblastic leukemia (B-ALL). This disease is manifested as a severe defect in the production of normal blood cells due to the uncontrolled expansion of transformed B-lymphocyte progenitors in the bone marrow. Even though classical genetics identified translocations of transcription factor-coding genes in B-ALL, the extent of the targeting of regulatory networks in malignant transformation was not evident until the emergence of large-scale genomic analyses. There is now evidence that many B-ALL cases present with mutations in genes that encode transcription factors with critical roles in normal B-lymphocyte development. These include PAX5, IKZF1, EBF1, and TCF3, all of which are targeted by translocations or, more commonly, partial inactivation in cases of B-ALL. Even though there is support for the notion that germline polymorphisms in the PAX5 and IKZF1 genes predispose for B-ALL, the majority of leukemias present with somatic mutations in transcription factor-encoding genes. These genetic aberrations are often found in combination with mutations in genes that encode components of the preB-cell receptor or the IL-7/TSLP signaling pathways, all of which are important for early B-cell development. This review provides an overview of our current understanding of the molecular interplay that occurs between transcription factors and signaling events during normal and malignant B-lymphocyte development.</p>}},
  author       = {{Sigvardsson, Mikael}},
  issn         = {{0890-9369}},
  keywords     = {{B-ALL; B-lymphocytes; transcription factors]}},
  language     = {{eng}},
  number       = {{15-16}},
  pages        = {{703--723}},
  publisher    = {{Cold Spring Harbor Laboratory Press (CSHL)}},
  series       = {{Genes and Development}},
  title        = {{Transcription factor networks link B-lymphocyte development and malignant transformation in leukemia}},
  url          = {{http://dx.doi.org/10.1101/gad.349879.122}},
  doi          = {{10.1101/gad.349879.122}},
  volume       = {{37}},
  year         = {{2023}},
}