Cited by 313Telomeres, Telomerase, and SenescenceCancer-related Molecular PathwaysDevelopmental Biology and Gene Regulation

Control of the Reversibility of Cellular Quiescence by the Transcriptional Repressor HES1

Open access
Sang, Liyun, Coller, Hilary A., Roberts, James M.·2008·Science

Abstract

The mechanisms by which quiescent cells, including adult stem cells, preserve their ability to resume proliferation after weeks or even years of cell cycle arrest are not known. We report that reversibility is not a passive property of nondividing cells, because enforced cell cycle arrest for a period as brief as 4 days initiates spontaneous, premature, and irreversible senescence. Increased expression of the gene encoding the basic helix-loop-helix protein HES1 was required for quiescence to be reversible, because HES1 prevented both premature senescence and inappropriate differentiation in quiescent fibroblasts. In some human tumors, the HES1 pathway was activated, which allowed these cells to evade differentiation and irreversible cell cycle arrest. We conclude that HES1 safeguards against irreversible cell cycle exit both during normal cellular quiescence and pathologically in the setting of tumorigenesis.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1126/science.1155998

Cites

29 of 29 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Interruption of the DDR pathway is no longer sufficient to rescue growth once cells have progressed towards an established senescent phenotype.

    “However, interruption of this pathway is no longer sufficient to rescue growth once the cells have progressed towards an established senescent phenotype (d'Adda di Fagagna et al, 2003; Sang et al, 2008).”

    From Feedback between p21 and reactive oxygen production is necessary for cell senescence (2010) · cites this paper as Sang et al, 2008

    The passage describing the p21-removal experiment (indexed under Abstract; page unavailable) reports that fibroblasts remained unable to reenter the cell cycle and displayed senescence markers after p21 returned to baseline. Another passage says activating HES1 did not reverse senescence after the phenotypic transition. These findings support the claim that established senescence was not rescued, but the paper does not report interruption of the DDR pathway. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • The discrepancy in our results may relate to cell type or species differences or to HES1 status, which may determine quiescence reversibility (Sang et al., 2008).

    “The apparent discrepancy in our results may relate to cell type or species differences or the status of the helix-loop-helix protein HES1, which may play a crucial role in determining the reversibility of the quiescent state (Sang et al., 2008).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Sang, L., Coller, H. A., & Roberts, J. M.
Affiliations
Princeton University (US)
Corresponding author
Roberts, James M.
Venue
Science
Published
2008-08-22
Volume
321
Issue
5892
Pages
1095-1100
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2018341322
Cited by
313
References
29
Citations by year
2026: 9 · 2025: 12 · 2024: 12 · 2023: 10 · 2022: 7 · 2021: 10 · 2020: 12 · 2019: 16 · 2018: 14 · 2017: 16 · 2016: 13 · 2015: 17 · 2014: 25 · 2013: 23 · 2012: 33
FWCI
18.74
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Cancer Institute (R01CA118043)
  • National Institute of General Medical Sciences (P50GM071508)
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
quiescent cells, Hes1, bHLH transcription factors, cell cycle arrest, premature senescence, fibroblasts, adult stem cells, carcinogenesis, cell cycle exit
MeSH terms
Transcription Factor HES-1, Cell Cycle, Cell Differentiation, Cell Line, Fibroblasts, Humans, Recombinant Fusion Proteins, Repressor Proteins, Rhabdomyosarcoma, Transduction, Genetic, Signal Transduction, Cellular Senescence, MyoD Protein, Homeodomain Proteins, Muscle Development, Cell Line, Tumor, Cell Proliferation, Cyclin-Dependent Kinase Inhibitor p21, Basic Helix-Loop-Helix Proteins, Receptors, Notch, Co-Repressor Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review