Cited by 710Wnt/β-catenin signaling in development and cancerTelomeres, Telomerase, and SenescenceDevelopmental Biology and Gene Regulation

Telomerase modulates Wnt signalling by association with target gene chromatin

Open access
Park, Jae-Il, Venteicher, Andrew S., Hong, Ji Yeon, Choi, Jinkuk, Jun, Sohee, Shkreli, Marina, Chang, Woody, Meng, Zhaojing +7 more·2009·Nature

Abstract

Stem cells are controlled, in part, by genetic pathways frequently dysregulated during human tumorigenesis. Either stimulation of Wnt/beta-catenin signalling or overexpression of telomerase is sufficient to activate quiescent epidermal stem cells in vivo, although the mechanisms by which telomerase exerts these effects are not understood. Here we show that telomerase directly modulates Wnt/beta-catenin signalling by serving as a cofactor in a beta-catenin transcriptional complex. The telomerase protein component TERT (telomerase reverse transcriptase) interacts with BRG1 (also called SMARCA4), a SWI/SNF-related chromatin remodelling protein, and activates Wnt-dependent reporters in cultured cells and in vivo. TERT serves an essential role in formation of the anterior-posterior axis in Xenopus laevis embryos, and this defect in Wnt signalling manifests as homeotic transformations in the vertebrae of Tert(-/-) mice. Chromatin immunoprecipitation of the endogenous TERT protein from mouse gastrointestinal tract shows that TERT physically occupies gene promoters of Wnt-dependent genes. These data reveal an unanticipated role for telomerase as a transcriptional modulator of the Wnt/beta-catenin signalling pathway.

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  • Stable TERT overexpression in mouse skin enhanced bulge stem cell entry into cell cycle after phorbol ester stimulation.

    “Stable overexpression of TERT in mouse skin enhanced the ability of bulge stem cells to enter cell cycle when stimulated with phorbol esters (147).”

    From Telomeres and telomerase in cancer (2010) · cites this paper as [147]

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Authors
Park, J.-I., Venteicher, A. S., Hong, J. Y., Choi, J., Jun, S., Shkreli, M., Chang, W., Meng, Z., Cheung, P., Ji, H., McLaughlin, M., Veenstra, T. D., Nusse, R., McCrea, P. D., & Artandi, S. E.
Affiliations
  • Stanford Medicine (US)
  • The University of Texas MD Anderson Cancer Center (US)
  • National Cancer Institute (US)
  • Massachusetts Institute of Technology (US)
Corresponding author
Artandi, Steven E.
Venue
Nature
Published
2009-07
Volume
460
Issue
7251
Pages
66-72
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2086316954
Cited by
707
References
51
Citations by year
2026: 17 · 2025: 28 · 2024: 23 · 2023: 41 · 2022: 32 · 2021: 48 · 2020: 48 · 2019: 34 · 2018: 38 · 2017: 29 · 2016: 43 · 2015: 48 · 2014: 58 · 2013: 58 · 2012: 60
FWCI
21.63
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • DigitalCommons-Cedarville (Cedarville University) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • National Cancer Institute (CA111691, R01CA125453, CA125453, R01CA111691, P30CA124435)
  • National Institute of General Medical Sciences (R01GM052112)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
telomerase, telomerase reverse transcriptase, Wnt/β-catenin signaling, SMARCA4, chromatin remodeling, transcriptional regulation, epidermal stem cells, stem cell self-renewal, carcinogenesis, anterior-posterior axis, homeotic transformation, promoter, SWI/SNF complex
MeSH terms
Animals, Cell Line, Choristoma, Chromatin, DNA Helicases, HeLa Cells, Humans, Intestine, Small, Nuclear Proteins, Oocytes, Plasmids, Promoter Regions, Genetic, Transcription Factors, Xenopus laevis, Signal Transduction, Genes, Reporter, Telomerase, Somites, Wnt Proteins, beta Catenin, Mice, Wnt3 Protein

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