Cited by 1,106Hematopoietic Stem Cell TransplantationTelomeres, Telomerase, and SenescenceGenetics, Aging, and Longevity in Model Organisms

Stem-cell ageing modified by the cyclin-dependent kinase inhibitor p16INK4a

Janzen, Viktor, Forkert, Randolf, Fleming, Heather E., Saito, Yoriko, Waring, Michael T., Dombkowski, David M., Cheng, Tao, DePinho, Ronald A. +2 more·2006·Nature

Abstract

Stem-cell ageing is thought to contribute to altered tissue maintenance and repair. Older humans experience increased bone marrow failure and poorer haematologic tolerance of cytotoxic injury. Haematopoietic stem cells (HSCs) in older mice have decreased per-cell repopulating activity, self-renewal and homing abilities, myeloid skewing of differentiation, and increased apoptosis with stress. Here we report that the cyclin-dependent kinase inhibitor p16INK4a, the level of which was previously noted to increase in other cell types with age, accumulates and modulates specific age-associated HSC functions. Notably, in the absence of p16INK4a, HSC repopulating defects and apoptosis were mitigated, improving the stress tolerance of cells and the survival of animals in successive transplants, a stem-cell-autonomous tissue regeneration model. Inhibition of p16INK4a may ameliorate the physiological impact of ageing on stem cells and thereby improve injury repair in aged tissue.

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Crossref · 10.1038/nature05159

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Authors
Janzen, V., Forkert, R., Fleming, H. E., Saito, Y., Waring, M. T., Dombkowski, D. M., Cheng, T., DePinho, R. A., Sharpless, N. E., & Scadden, D. T.
Affiliations
  • Harvard University (US)
  • University of North Carolina at Chapel Hill (US)
Corresponding author
Scadden, David T.
Venue
Nature
Published
2006-09
Volume
443
Issue
7110
Pages
421-426
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2084289371
Cited by
1,106
References
33
Citations by year
2026: 13 · 2025: 12 · 2024: 17 · 2023: 21 · 2022: 48 · 2021: 34 · 2020: 37 · 2019: 44 · 2018: 39 · 2017: 57 · 2016: 57 · 2015: 62 · 2014: 66 · 2013: 70 · 2012: 59
FWCI
63.34
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Topics
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
Keywords
p16INK4a, stem cell aging, hematopoietic stem cells, cyclin-dependent kinase inhibitors, tumour suppressor, stem cell self-renewal, apoptosis, stress tolerance, tissue regeneration, pancreatic islet regeneration, brain regeneration, type 2 diabetes, bone marrow failure
MeSH terms
Transcription Factor HES-1, Aging, Animals, Cell Count, Hematopoietic Stem Cells, Bone Marrow Transplantation, Cellular Senescence, Apoptosis, Homeodomain Proteins, Cyclin-Dependent Kinase Inhibitor p16, Cell Proliferation, Mice, Basic Helix-Loop-Helix Proteins

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