Cited by 450Telomeres, Telomerase, and SenescenceGenetics, Aging, and Longevity in Model OrganismsCancer-related Molecular Pathways

Mechanisms underlying the activation of TERT transcription and telomerase activity in human cancer: Old actors and new players

Open access
Yuan, Xiaotian, Larsson, Catharina, Xu, Dawei·2019·Oncogene

Abstract

Long-lived species Homo sapiens have evolved robust protection mechanisms against cancer by repressing telomerase and maintaining short telomeres, thereby delaying the onset of the majority of cancer types until post-reproductive age. Indeed, telomerase is silent in most differentiated human cells, predominantly due to the transcriptional repression of its catalytic component telomerase reverse transcriptase (TERT) gene. The lack of telomerase/TERT expression leads to progressive telomere erosion in dividing human cells, whereas critically shortened telomere length induces a permanent growth arrest stage named replicative senescence. TERT/telomerase activation has been experimentally shown to be essential to cellular immortalization and malignant transformation by stabilizing telomere length and erasing the senescence barrier. Consistently, TERT expression/telomerase activity is detectable in up to 90% of human primary cancers. Compelling evidence has also accumulated that TERT contributes to cancer development and progression via multiple activities beyond its canonical telomere-lengthening function. Given these key roles of telomerase and TERT in oncogenesis, great efforts have been made to decipher mechanisms underlying telomerase activation and TERT induction. In the last two decades since the TERT gene and promoter were cloned, the derepression of the TERT gene has been shown to be achieved typically at a transcriptional level through dysregulation of oncogenic factors or signaling, post-transcriptional/translational regulation and genomic amplification. However, advances in high-throughput next-generation sequencing technologies have prompted a revolution in cancer genomics, which leads to the recent discovery that genomic alterations take center stage in activating the TERT gene. In this review article, we summarize critical mechanisms activating TERT transcription, with special emphases on the contribution of TERT promoter mutations and structural alterations at the TERT locus, and briefly discuss the underlying implications of these genomic events-driven TERT hyperactivity in cancer initiation/progression and potential clinical applications as well.

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 · 10.1038/s41388-019-0872-9

Cites

101 of 101 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?

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
Yuan, X., Larsson, C., & Xu, D.
Affiliations
Karolinska University Hospital (SE)
Corresponding author
  • Yuan, Xiaotian
  • Xu, Dawei
Venue
Oncogene
Published
2019-07-08
Volume
38
Issue
34
Pages
6172-6183
ISSN
  • 0950-9232 (ISSN-L)
  • 1476-5594
OpenAlex
W2962043899
Cited by
450
References
101
Citations by year
2026: 26 · 2025: 64 · 2024: 67 · 2023: 55 · 2022: 72 · 2021: 81 · 2020: 77 · 2019: 7 · 2018: 1
FWCI
6.99
Type
journal article
Language
en
Open access
Locations
  • Oncogene (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Swedish Foundation for International Cooperation in Research and Higher Education
  • Cancerfonden
  • China Postdoctoral Science Foundation (2019M652404)
  • Karolinska Institutet
  • Vetenskapsrådet
  • Cancerföreningen i Stockholm
  • Ruth och Richard Julins Stiftelse
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
telomerase reverse transcriptase, telomerase activation, TERT promoter mutation, gene amplification, telomere length, replicative senescence, cell immortalization, oncogenic signaling, tumor progression, cancer genomics
MeSH terms
Cell Transformation, Neoplastic, Humans, Mutation, Neoplasms, Promoter Regions, Genetic, Transcription, Genetic, Gene Expression Regulation, Neoplastic, Telomere, Disease Progression, Telomerase, Telomere Homeostasis, Telomere Shortening

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