Cited by 124Telomeres, Telomerase, and SenescenceGenetics, Aging, and Longevity in Model OrganismsCancer-related Molecular Pathways

The illusion of cell immortality

Open access
Hayflick, L·2000·British Journal of Cancer

Abstract

Normal cultured cell populations are mortal but cells that are immortal are abnormal and most have properties of cancer cells. Nevertheless, this distinction becomes blurred because the terms 'mortality' and 'immortality' are subject to enormous variations in understanding. Forty years ago we showed that cell mortality and immortality are inextricably linked to longevity determination, ageing and cancer. We suggested that a counting mechanism existed in normal cells and that has now been identified as telomere attrition. This replicometer, in combination with the discovery of the enzyme telomerase, has gone very far in explaining why most normal somatic cells have a finite capacity to replicate both in vivo and in vitro and how immortal cancer cells circumvent this inevitability. It is suggested that telomere attrition may be better understood as a direct measure of longevity determination and to only have an indirect association with age changes.

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 · 10.1054/bjoc.2000.1296

Cites

57 of 57 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?

  • Attrition of telomeres is a protective mechanism against cancer, as each round of proliferation is likely to introduce mutations.

    “Attrition of telomeres is a protective mechanism against cancer, as each round of proliferation is likely to introduce mutations [100].”

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
Hayflick, L.
Affiliations
University of California, San Francisco (US)
Corresponding author
Hayflick, L
Venue
British Journal of Cancer
Published
2000-10
Volume
83
Issue
7
Pages
841-846
ISSN
  • 0007-0920 (ISSN-L)
  • 1532-1827
OpenAlex
W1510708869
Cited by
124
References
57
Citations by year
2026: 2 · 2025: 2 · 2024: 1 · 2023: 4 · 2022: 3 · 2021: 6 · 2020: 6 · 2019: 2 · 2018: 4 · 2017: 6 · 2016: 4 · 2015: 9 · 2014: 5 · 2013: 4 · 2012: 3
FWCI
0.87
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • British Journal of Cancer (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
Keywords
cell immortalization, cell death, telomere shortening, telomerase, replicative capacity, cellular aging, cancer cells
MeSH terms
Animals, Cell Survival, Cells, Cultured, Humans, Neoplasms, Telomere, Cellular Senescence, Cell Death

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