Cited by 1,871Hematopoietic Stem Cell TransplantationMesenchymal stem cell researchBlood disorders and treatments

Bmi-1 is required for maintenance of adult self-renewing haematopoietic stem cells.

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Park, In-kyung, Qian, Dalong, Kiel, Mark, Becker, Michael W., Pihalja, Michael, Weissman, Irving L., Morrison, Sean J., Clarke, Michael F.·2003·Nature

Abstract

A central issue in stem cell biology is to understand the mechanisms that regulate the self-renewal of haematopoietic stem cells (HSCs), which are required for haematopoiesis to persist for the lifetime of the animal. We found that adult and fetal mouse and adult human HSCs express the proto-oncogene Bmi-1. The number of HSCs in the fetal liver of Bmi-1-/- mice was normal. In postnatal Bmi-1-/- mice, the number of HSCs was markedly reduced. Transplanted fetal liver and bone marrow cells obtained from Bmi-1-/- mice were able to contribute only transiently to haematopoiesis. There was no detectable self-renewal of adult HSCs, indicating a cell autonomous defect in Bmi-1-/- mice. A gene expression analysis revealed that the expression of stem cell associated genes, cell survival genes, transcription factors, and genes modulating proliferation including p16Ink4a and p19Arf was altered in bone marrow cells of the Bmi-1-/- mice. Expression of p16Ink4a and p19Arf in normal HSCs resulted in proliferative arrest and p53-dependent cell death, respectively. Our results indicate that Bmi-1 is essential for the generation of self-renewing adult HSCs.

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Authors
Park, I.-K., Qian, D., Kiel, M., Becker, M. W., Pihalja, M., Weissman, I. L., Morrison, S. J., & Clarke, M. F.
Affiliations
  • University of Michigan (US)
  • Howard Hughes Medical Institute (US)
  • Stanford Medicine (US)
Corresponding author
Clarke, Michael F.
Venue
Nature
Published
2003-04-20
Volume
423
Issue
6937
Pages
302-305
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2021050536
Cited by
1,871
References
31
Citations by year
2026: 16 · 2025: 19 · 2024: 15 · 2023: 29 · 2022: 50 · 2021: 48 · 2020: 45 · 2019: 51 · 2018: 52 · 2017: 68 · 2016: 79 · 2015: 81 · 2014: 97 · 2013: 100 · 2012: 127
FWCI
55.81
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Deep Blue (University of Michigan) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • University of Michigan
  • National Institutes of Health
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
BMI1, hematopoietic stem cells, self-renewal, stem cell maintenance, p16INK4a, p19ARF, p53-dependent cell death, growth arrest, cell survival genes, hematopoiesis, bone marrow
MeSH terms
Proto-Oncogene Mas, Animals, Bone Marrow Cells, Cell Division, Gene Expression Regulation, Hematopoietic Stem Cells, Humans, Liver, Models, Biological, Nuclear Proteins, Proto-Oncogene Proteins, Repressor Proteins, RNA, Messenger, Bone Marrow Transplantation, Gene Deletion, Hematopoietic Stem Cell Transplantation, Cyclin-Dependent Kinase Inhibitor p16, Tumor Suppressor Protein p14ARF, Mice, Polycomb Repressive Complex 1

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