Cited by 490Hematopoietic Stem Cell TransplantationGenetics, Aging, and Longevity in Model OrganismsSirtuins and Resveratrol in Medicine

A mitochondrial UPR-mediated metabolic checkpoint regulates hematopoietic stem cell aging

Open access
Mohrin, Mary, Shin, Jiyung, Liu, Yufei, Brown, Katharine, Luo, Hanzhi, Xi, Yannan, Haynes, Cole M., Chen, Danica·2015·Science

Abstract

Deterioration of adult stem cells accounts for much of aging-associated compromised tissue maintenance. How stem cells maintain metabolic homeostasis remains elusive. Here, we identified a regulatory branch of the mitochondrial unfolded protein response (UPR(mt)), which is mediated by the interplay of SIRT7 and NRF1 and is coupled to cellular energy metabolism and proliferation. SIRT7 inactivation caused reduced quiescence, increased mitochondrial protein folding stress (PFS(mt)), and compromised regenerative capacity of hematopoietic stem cells (HSCs). SIRT7 expression was reduced in aged HSCs, and SIRT7 up-regulation improved the regenerative capacity of aged HSCs. These findings define the deregulation of a UPR(mt)-mediated metabolic checkpoint as a reversible contributing factor for HSC aging.

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  • Lowering mitochondrial stress in aged HSCs can restore lost stem cell function.

    “reducing mitochondrial stress in aged HSCs can reverse loss of stem functioning.”

    From Aging of hematopoietic stem cells (2018) · cites this paper as [62]

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Research works printed but not linked: 2

  1. [2]López-Otín C Blasco MA Partridge L Serrano M Kroemer G Cell 2013 153 1194 1217 23746838 PMC3836174
  2. [11]Vakhrusheva O Braeuer D Liu Z Braun T Bober E J. Physiol. Pharmacol 2008 59 suppl. 9 201 212 19261981

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Authors
Mohrin, M., Shin, J., Liu, Y., Brown, K., Luo, H., Xi, Y., Haynes, C. M., & Chen, D.
Affiliations
  • University of California, Berkeley (US)
  • Memorial Sloan Kettering Cancer Center (US)
Corresponding author
  • Mohrin, Mary
  • Shin, Jiyung
  • Liu, Yufei
  • Brown, Katharine
  • Chen, Danica
Venue
Science
Published
2015-03-20
Volume
347
Issue
6228
Pages
1374-1377
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2095048801
Cited by
490
References
30
Citations by year
2026: 34 · 2025: 32 · 2024: 30 · 2023: 43 · 2022: 36 · 2021: 58 · 2020: 60 · 2019: 37 · 2018: 48 · 2017: 45 · 2016: 49 · 2015: 17
FWCI
41.59
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • NIH (R01 AG040990, R01AG040061, T32 AG000266)
  • Ellison Medical Foundation
  • Glenn Foundation
  • NSF Graduate Research Fellowship Program
  • Siebel Stem Cell Institute
Topics
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
Keywords
mitochondrial unfolded protein response, hematopoietic stem cell aging, SIRT7, NRF1, stem cell quiescence, energy metabolism, stem cell proliferation, regenerative capacity, metabolic checkpoint, aging
MeSH terms
Animals, Energy Metabolism, Hematopoietic Stem Cells, Humans, Mice, Mutant Strains, Mitochondria, Protein Biosynthesis, Cellular Senescence, Mitochondrial Proteins, Sirtuins, Nuclear Respiratory Factor 1, Mice, Unfolded Protein Response, HEK293 Cells, Cell Cycle Checkpoints

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