Cited by 823Hematopoietic Stem Cell TransplantationMesenchymal stem cell researchBlood disorders and treatments

c-Myc controls the balance between hematopoietic stem cell self-renewal and differentiation

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Wilson, Anne, Murphy, Mark J., Oskarsson, Thordur, Kaloulis, Konstantinos, Bettess, Michael D., Oser, Gabriela M., Pasche, Anne-Catherine, Knabenhans, Christian +2 more·2004·Genes & Development

Abstract

The activity of adult stem cells is essential to replenish mature cells constantly lost due to normal tissue turnover. By a poorly understood mechanism, stem cells are maintained through self-renewal while concomitantly producing differentiated progeny. Here, we provide genetic evidence for an unexpected function of the c-Myc protein in the homeostasis of hematopoietic stem cells (HSCs). Conditional elimination of c-Myc activity in the bone marrow (BM) results in severe cytopenia and accumulation of HSCs in situ. Mutant HSCs self-renew and accumulate due to their failure to initiate normal stem cell differentiation. Impaired differentiation of c-Myc-deficient HSCs is linked to their localization in the differentiation preventative BM niche environment, and correlates with up-regulation of N-cadherin and a number of adhesion receptors, suggesting that release of HSCs from the stem cell niche requires c-Myc activity. Accordingly, enforced c-Myc expression in HSCs represses N-cadherin and integrins leading to loss of self-renewal activity at the expense of differentiation. Endogenous c-Myc is differentially expressed and induced upon differentiation of long-term HSCs. Collectively, our data indicate that c-Myc controls the balance between stem cell self-renewal and differentiation, presumably by regulating the interaction between HSCs and their niche.

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Crossref · 10.1101/gad.313104

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  • IL-1 downregulates expression of Myc, a crucial upstream regulator of protein synthesis and cell cycle genes that leads to defective cell cycle entry if deleted in stem cells.

    “Likewise, IL-1 downregulates expression of Myc, a crucial upstream regulator of protein synthesis and cell cycle genes that leads to defective cell cycle entry if deleted in stem cells (Laurenti et al., 2008; Scognamiglio et al., 2016; Wilson et al., 2004).”

    From PU.1 enforces quiescence and limits hematopoietic stem cell expansion during inflammatory stress (2021) · cites this paper as Wilson et al., 2004

    The Abstract describes c-Myc as a regulator of target genes and cell division, and the Results report that its loss impairs proliferation of lineage-committed bone-marrow cells. But the section “Proliferation and survival of HSCs in vivo is c-Myc independent” says hematopoietic stem cells proliferate without c-Myc, contrary to the claimed defect in stem-cell cycle entry. The passages found do not establish that IL-1 downregulates Myc or that Myc regulates protein-synthesis genes. Page numbers were not provided for these indexed passages. (LLM, conf=0.89)

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Research works printed but not linked: 6

  1. Christensen, J.L. and Weissman, I.L. 2001. Flk-2 is a marker in hematopoietic stem cell differentiation: A simple method to isolate long-term stem cells. Proc. Natl. Acad. Sci. 98: 14541-14546.
  2. Morrison, S.J., Wright, D.E., and Weissman, I.L. 1997. Cyclo- phosphamide/granulocyte colony-stimulating factor induces hematopoietic stem cells to proliferate prior to mobilization. Proc. Natl. Acad. Sci. 94: 1908-1913.
  3. Smith, L.G., Weissman, I.L., and Heimfeld, S. 1991. Clonal analysis of hematopoietic stem-cell differentiation in vivo. Proc. Natl. Acad. Sci. 88: 2788-2792.
  4. Song, X. and Xie, T. 2002. DE-cadherin-mediated cell adhesion is essential for maintaining somatic stem cells in the Dro- sophila ovary. Proc. Natl. Acad. Sci. 99: 14813-14818.
  5. Sperger, J.M., Chen, X., Draper, J.S., Antosiewicz, J.E., Chon, C.H., Jones, S.B., Brooks, J.D., Andrews, P.W., Brown, P.O., and Thomson, J.A. 2003. Gene expression patterns in human embryonic stem cells and human pluripotent germ cell tu- mors. Proc. Natl. Acad. Sci. 100: 13350-13355.
  6. Stappenbeck, T.S., Mills, J.C., and Gordon, J.I. 2003. Molecular features of adult mouse small intestinal epithelial progeni- tors. Proc. Natl. Acad. Sci. 100: 1004-1009.

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Authors
Wilson, A., Murphy, M. J., Oskarsson, T., Kaloulis, K., Bettess, M. D., Oser, G. M., Pasche, A.-C., Knabenhans, C., MacDonald, H. R., & Trumpp, A.
Affiliations
ISREC Foundation (CH)
Venue
Genes & Development
Published
2004-11-15
Volume
18
Issue
22
Pages
2747-2763
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W2066277278
Cited by
823
References
6
Citations by year
2026: 9 · 2025: 25 · 2024: 28 · 2023: 32 · 2022: 25 · 2021: 49 · 2020: 48 · 2019: 34 · 2018: 39 · 2017: 26 · 2016: 37 · 2015: 34 · 2014: 36 · 2013: 33 · 2012: 38
Type
posted content
Language
en
Open access
Locations
  • Genes & Development (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
  • IRIS (submittedVersion)
  • SERVAL (Université de Lausanne) (submittedVersion)
Funders
  • National Science Foundation
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
  • UBS Optimus Foundation
Topics
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Blood disorders and treatments
Keywords
c-Myc, hematopoietic stem cells, stem cell self-renewal, stem cell differentiation, hematopoietic homeostasis, bone marrow microenvironment, N-cadherin, integrins, cell adhesion receptors, conditional knockout, cytopenia, stem cell niche
MeSH terms
Anemia, Animals, Bone Marrow, Cell Adhesion, Cell Differentiation, Cell Survival, Female, Hematopoiesis, Hematopoietic Stem Cells, Humans, Mice, Inbred C57BL, Mice, Transgenic, Receptors, Cell Surface, RNA, Messenger, Cadherins, Up-Regulation, Integrins, Proto-Oncogene Proteins c-myc, Integrases, Reverse Transcriptase Polymerase Chain Reaction, Mice

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