Cited by 66Cell death mechanisms and regulationDevelopmental Biology and Gene RegulationAcute Lymphoblastic Leukemia research

Notch/HES1-mediated PARP1 activation: a cell type–specific mechanism for tumor suppression

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Kannan, Sankaranarayanan, Fang, Wendy, Song, Guangchun, Mullighan, Charles G., Hammitt, Richard, McMurray, John, Zweidler-McKay, Patrick A.·2011·Blood

Abstract

Notch signaling plays both oncogenic and tumor suppressor roles, depending on cell type. In contrast to T-cell acute lymphoblastic leukemia (ALL), where Notch activation promotes leukemogenesis, induction of Notch signaling in B-cell ALL (B-ALL) leads to growth arrest and apoptosis. The Notch target Hairy/Enhancer of Split1 (HES1) is sufficient to reproduce this tumor suppressor phenotype in B-ALL; however, the mechanism is not yet known. We report that HES1 regulates proapoptotic signals by the novel interacting protein Poly ADP-Ribose Polymerase1 (PARP1) in a cell type–specific manner. Interaction of HES1 with PARP1 inhibits HES1 function, induces PARP1 activation, and results in PARP1 cleavage in B-ALL. HES1-induced PARP1 activation leads to self-ADP ribosylation of PARP1, consumption of nicotinamide adenine dinucleotide+, diminished adenosine triphosphate levels, and translocation of apoptosis-inducing factor from mitochondria to the nucleus, resulting in apoptosis in B-ALL but not T-cell ALL. Importantly, induction of Notch signaling by the Notch agonist peptide Delta/Serrate/Lag-2 can reproduce these events and leads to B-ALL apoptosis. The novel interaction of HES1 and PARP1 in B-ALL modulates the function of the HES1 transcriptional complex and signals through PARP1 to induce apoptosis. This mechanism shows a cell type–specific proapoptotic pathway that may lead to Notch agonist–based cancer therapeutics.

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  1. Gentleman RC, Carey VJ, Bates DM, et al. Bio- conductor: open software development for com- putational biology and bioinformatics. Genome Biol. 2004;5(10):R80.

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Authors
Kannan, S., Fang, W., Song, G., Mullighan, C. G., Hammitt, R., McMurray, J., & Zweidler-McKay, P. A.
Affiliations
  • The University of Texas MD Anderson Cancer Center (US)
  • St. Jude Children's Research Hospital (US)
  • Division of Pediatrics, The University of Texas M. D. Anderson Cancer Center, Houston, TX;
Venue
Blood
Published
2011-03-10
Volume
117
Issue
10
Pages
2891-2900
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W2094611687
Cited by
66
References
50
Citations by year
2026: 3 · 2025: 5 · 2024: 4 · 2023: 1 · 2022: 3 · 2021: 3 · 2020: 5 · 2019: 3 · 2018: 4 · 2017: 1 · 2016: 2 · 2015: 4 · 2014: 8 · 2013: 9 · 2012: 7
FWCI
3.51
Type
journal article
Language
en
Open access
Locations
  • Blood (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Cancer Institute (R01CA138816, K08CA101934)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Acute Lymphoblastic Leukemia research
Keywords
Notch signaling, Hes1, PARP1, B-cell acute lymphoblastic leukemia, T-cell acute lymphoblastic leukemia, apoptosis, tumor suppression, cell type-specific signaling, PARP-1 cleavage, ADP-ribosylation, apoptosis-inducing factor, mitochondrial translocation
MeSH terms
Poly (ADP-Ribose) Polymerase-1, Transcription Factor HES-1, Cell Separation, Child, Enzyme Activation, Enzyme-Linked Immunosorbent Assay, Flow Cytometry, Humans, Poly(ADP-ribose) Polymerases, RNA, Messenger, Transfection, Signal Transduction, Precursor B-Cell Lymphoblastic Leukemia-Lymphoma, Genes, Tumor Suppressor, Apoptosis, Homeodomain Proteins, Cell Line, Tumor, Chromatin Immunoprecipitation, Basic Helix-Loop-Helix Proteins, Basic Helix-Loop-Helix Transcription Factors, Receptors, Notch, Precursor T-Cell Lymphoblastic Leukemia-Lymphoma

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