Cited by 25Hematopoietic Stem Cell TransplantationGenetic Syndromes and ImprintingBlood disorders and treatments

Deletion of the Imprinted Gene Grb10 Promotes Hematopoietic Stem Cell Self-Renewal and Regeneration

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Yan, Xiao, Himburg, Heather A., Pohl, Katherine, Quarmyne, Mamle, Tran, Evelyn, Zhang, Yurun, Fang, Tiancheng, Kan, Jenny +4 more·2016·Cell Reports

Abstract

Imprinted genes are differentially expressed by adult stem cells, but their functions in regulating adult stem cell fate are incompletely understood. Here we show that growth factor receptor-bound protein 10 ( Grb10 ), an imprinted gene, regulates hematopoietic stem cell (HSC) self-renewal and regeneration. Deletion of the maternal allele of Grb10 in mice ( Grb10 m/+ mice) substantially increased HSC long-term repopulating capacity, as compared to that of Grb10 +/+ mice. After total body irradiation (TBI), Grb10 m/+ mice demonstrated accelerated HSC regeneration and hematopoietic reconstitution, as compared to Grb10 +/+ mice. Grb10 -deficient HSCs displayed increased proliferation after competitive transplantation or TBI, commensurate with upregulation of CDK4 and Cyclin E. Furthermore, the enhanced HSC regeneration observed in Grb10 -deficient mice was dependent on activation of the Akt/mTORC1 pathway. This study reveals a function for the imprinted gene Grb10 in regulating HSC self-renewal and regeneration and suggests that the inhibition of Grb10 can promote hematopoietic regeneration in vivo.

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Crossref · 10.1016/j.celrep.2016.10.025

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Authors
Yan, X., Himburg, H. A., Pohl, K., Quarmyne, M., Tran, E., Zhang, Y., Fang, T., Kan, J., Chao, N. J., Zhao, L., Doan, P. L., & Chute, J. P.
Affiliations
  • University of California, Los Angeles (US)
  • Duke University (US)
Corresponding author
Chute, John P.
Venue
Cell Reports
Publisher
Elsevier BV
Published
2016-11
Volume
17
Issue
6
Pages
1584-1594
ISSN
2211-1247 (ISSN-L)
OpenAlex
W2548044639
Cited by
25
References
43
Citations by year
2026: 1 · 2025: 3 · 2023: 1 · 2022: 2 · 2021: 2 · 2020: 4 · 2019: 3 · 2018: 6 · 2017: 3
FWCI
3.80
Type
journal article
Language
en
Open access
Locations
  • Cell Reports (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • DukeSpace (Duke University) (submittedVersion, cc-by-nc-nd)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institute of Allergy and Infectious Diseases (NIAID) (AI067769)
  • National Heart, Lung, and Blood Institute (NHLBI) (HL086998)
  • California Institute for Regenerative Medicine (LA1-08014)
Topics
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Syndromes and Imprinting
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Blood disorders and treatments
Keywords
Grb10, genomic imprinting, hematopoietic stem cells, stem cell self-renewal, hematopoietic regeneration, total body irradiation, hematopoietic recovery, CDK4, cyclin E, Akt/mTORC1 signaling, stem cell proliferation
MeSH terms
Cell Self Renewal, Mechanistic Target of Rapamycin Complex 1, Animals, Bone Marrow Cells, Hematopoietic Stem Cells, Mice, Inbred C57BL, Regeneration, Whole-Body Irradiation, Signal Transduction, Gene Deletion, Genomic Imprinting, Cell Proliferation, Proto-Oncogene Proteins c-akt, GRB10 Adaptor Protein

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