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ASCL1 is a MYCN- and LMO1-dependent member of the adrenergic neuroblastoma core regulatory circuitry

Author(s)
Durbin, Adam D.; Abraham, Brian J.; Lawton, Lee N.; Young, Richard A.; Sanda, Takaomi
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Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/
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Abstract
A heritable polymorphism within regulatory sequences of the LMO1 gene is associated with its elevated expression and increased susceptibility to develop neuroblastoma, but the oncogenic pathways downstream of the LMO1 transcriptional co-regulatory protein are unknown. Our ChIP-seq and RNA-seq analyses reveal that a key gene directly regulated by LMO1 and MYCN is ASCL1, which encodes a basic helix-loop-helix transcription factor. Regulatory elements controlling ASCL1 expression are bound by LMO1, MYCN and the transcription factors GATA3, HAND2, PHOX2B, TBX2 and ISL1—all members of the adrenergic (ADRN) neuroblastoma core regulatory circuitry (CRC). ASCL1 is required for neuroblastoma cell growth and arrest of differentiation. ASCL1 and LMO1 directly regulate the expression of CRC genes, indicating that ASCL1 is a member and LMO1 is a coregulator of the ADRN neuroblastoma CRC.
Date issued
2019-12
URI
https://hdl.handle.net/1721.1/124654
Department
Whitehead Institute for Biomedical Research; Massachusetts Institute of Technology. Department of Biology
Journal
Nature communications
Publisher
Springer Science and Business Media LLC
Citation
Wang, Lu et al. "ASCL1 is a MYCN- and LMO1-dependent member of the adrenergic neuroblastoma core regulatory circuitry." Nature communications 10 (2019): 1039 © 2019 The Author(s)
Version: Final published version
ISSN
2041-1723
Keywords
General Biochemistry, Genetics and Molecular Biology, General Physics and Astronomy, General Chemistry

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