The DOI matches its Crossref record; 59 of the 59 references it cites were found in a registry or an index.
Telomeric and extra-telomeric roles for telomerase and the telomere-binding proteins
Abstract
Mammalian telomeres are formed by tandem repeats of the TTAGGG sequence, which are progressively lost with each round of cell division. Telomere protection requires a minimal length of TTAGGG repeats to allow the binding of shelterin, which prevents the activation of a DNA damage response (DDR) at chromosome ends. Telomere elongation is carried out by telomerase. Telomerase can also act as a transcriptional modulator of the Wnt-β-catenin signalling pathway and has RNA-dependent RNA polymerase activity. Dysfunctional telomeres can lead to either cancer or ageing pathologies depending on the integrity of the DDR. This Review discusses the role of telomeric proteins in cancer and ageing through modulating telomere length and protection, as well as regulating gene expression by binding to non-telomeric sites.
Overview
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
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?
In the citing paper
“In humans, many studies have provided evidence for causal associations between short telomere length and age-related diseases 42 .”
From Hallmarks of aging: An expanding universe (2023) · cites this paper as [42]
Citations
Cites
Takahashi, K., & Yamanaka, S. (2006) · Cell · doi:10.1016/j.cell.2006.07.024 · Cited by 26,673
Telomeres shorten during ageing of human fibroblasts
Harley, C. B., Futcher, A. B., & Greider, C. W. (1990) · Nature · doi:10.1038/345458a0 · Cited by 5,750
Extension of Life-Span by Introduction of Telomerase into Normal Human Cells
Bodnar, A. G., Ouellette, M., Frolkis, M., Holt, S. E., Chiu, C.-P., Morin, G. B., Harley, C. B., Shay, J. W., Lichtsteiner, S., & Wright, W. E. (1998) · Science · doi:10.1126/science.279.5349.349 · Cited by 4,975
Genetic instabilities in human cancers
Lengauer, C., Kinzler, K. W., & Vogelstein, B. (1998) · Nature · doi:10.1038/25292 · Cited by 4,168 · cited 1×
“Telomere dysfunction and genomic instability Genomic instability is a prominent characteristic of most, if not all, cancer types that has an essential role in tumorigenesis by accelerating the accumulation of genetic changes that are responsible for cancer cell evolutio”
BackgroundMissing Pieces in the NF-κB Puzzle
Ghosh, S., & Karin, M. (2002) · Cell · doi:10.1016/s0092-8674(02)00703-1 · Cited by 3,638
Transcriptional silencing and longevity protein Sir2 is an NAD-dependent histone deacetylase
Imai, S.-I., Armstrong, C. M., Kaeberlein, M., & Guarente, L. (2000) · Nature · doi:10.1038/35001622 · Cited by 3,510
Shelterin: the protein complex that shapes and safeguards human telomeres
de Lange, T. (2005) · Genes & Development · doi:10.1101/gad.1346005 · Cited by 3,056
A DNA damage checkpoint response in telomere-initiated senescence
Fagagna, F. D. D., Reaper, P. M., Clay-Farrace, L., Fiegler, H., Carr, P., von Zglinicki, T., Saretzki, G., Carter, N. P., & Jackson, S. P. (2003) · Nature · doi:10.1038/nature02118 · Cited by 2,917
Breast cancer metastasis: markers and models
Weigelt, B., Peterse, J. L., & van't Veer, L. J. (2005) · Nature Reviews Cancer · doi:10.1038/nrc1670 · Cited by 2,232
Telomere Shortening and Tumor Formation by Mouse Cells Lacking Telomerase RNA
Blasco, M. A., Lee, H.-W., Hande, M. P., Samper, E., Lansdorp, P. M., DePinho, R. A., & Greider, C. W. (1997) · Cell · doi:10.1016/s0092-8674(01)80006-4 · Cited by 2,108
Self-citationTRF2 Protects Human Telomeres from End-to-End Fusions
van Steensel, B., Smogorzewska, A., & de Lange, T. (1998) · Cell · doi:10.1016/s0092-8674(00)80932-0 · Cited by 1,709
WATSON, J. D. (1972) · Nature New Biology · doi:10.1038/newbio239197a0 · Cited by 1,632
Telomerase Mutations in Families with Idiopathic Pulmonary Fibrosis
Armanios, M. Y., Chen, J. J.-L., Cogan, J. D., Alder, J. K., Ingersoll, R. G., Markin, C., Lawson, W. E., Xie, M., Vulto, I., Phillips, J. A., et al. (2007) · New England Journal of Medicine · doi:10.1056/nejmoa066157 · Cited by 1,357
Longevity, Stress Response, and Cancer in Aging Telomerase-Deficient Mice
Rudolph, K. L., Chang, S., Lee, H.-W., Blasco, M., Gottlieb, G. J., Greider, C., & DePinho, R. A. (1999) · Cell · doi:10.1016/s0092-8674(00)80580-2 · Cited by 1,349 · cited 1×
“This progressive telomere shortening is proposed to be one of the molecular mechanisms underlying agein”
BackgroundSelf-citationEssential role of mouse telomerase in highly proliferative organs
Lee, H.-W., Blasco, M. A., Gottlieb, G. J., Horner, J. W., Greider, C. W., & DePinho, R. A. (1998) · Nature · doi:10.1038/33345 · Cited by 1,270
Self-citationHemann, M. T., Strong, M. A., Hao, L.-Y., & Greider, C. W. (2001) · Cell · doi:10.1016/s0092-8674(01)00504-9 · Cited by 1,219
p53- and ATM-Dependent Apoptosis Induced by Telomeres Lacking TRF2
Karlseder, J., Broccoli, D., Dai, Y., Hardy, S., & de Lange, T. (1999) · Science · doi:10.1126/science.283.5406.1321 · Cited by 1,086
A p53-mediated DNA damage response limits reprogramming to ensure iPS cell genomic integrity
Marión, R. M., Strati, K., Li, H., Murga, M., Blanco, R., Ortega, S., Fernandez-Capetillo, O., Serrano, M., & Blasco, M. A. (2009) · Nature · doi:10.1038/nature08287 · Cited by 1,028
Self-citationMammalian Telomeres Resemble Fragile Sites and Require TRF1 for Efficient Replication
Sfeir, A., Kosiyatrakul, S. T., Hockemeyer, D., MacRae, S. L., Karlseder, J., Schildkraut, C. L., & de Lange, T. (2009) · Cell · doi:10.1016/j.cell.2009.06.021 · Cited by 990
Chin, L., Artandi, S. E., Shen, Q., Tam, A., Lee, S.-L., Gottlieb, G. J., Greider, C. W., & DePinho, R. A. (1999) · Cell · doi:10.1016/s0092-8674(00)80762-x · Cited by 979
The RNA component of telomerase is mutated in autosomal dominant dyskeratosis congenita
Vulliamy, T., Marrone, A., Goldman, F., Dearlove, A., Bessler, M., Mason, P. J., & Dokal, I. (2001) · Nature · doi:10.1038/35096585 · Cited by 960
Human telomeres contain two distinct Myb–related proteins, TRF1 and TRF2
Broccoli, D., Smogorzewska, A., Chong, L., & de Lange, T. (1997) · Nature Genetics · doi:10.1038/ng1097-231 · Cited by 926
Adult-onset pulmonary fibrosis caused by mutations in telomerase
Tsakiri, K. D., Cronkhite, J. T., Kuan, P. J., Xing, C., Raghu, G., Weissler, J. C., Rosenblatt, R. L., Shay, J. W., & Garcia, C. K. (2007) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0701009104 · Cited by 894
Mild hyperoxia shortens telomeres and inhibits proliferation of fibroblasts: a model for senescence?
von Zglinicki, T., Saretzki, G., Döcke, W., & Lotze, C. (1995) · Experimental Cell Research · doi:10.1006/excr.1995.1305 · Cited by 856
Defining molecular cornerstones during fibroblast to iPS cell reprogramming in mouse
Stadtfeld, M., Maherali, N., Breault, D. T., & Hochedlinger, K. (2008) · Cell stem cell · doi:10.1016/j.stem.2008.02.001 · Cited by 823
Telomeres and telomerase in cancer
Artandi, S. E., & DePinho, R. A. (2010) · Carcinogenesis · doi:10.1093/carcin/bgp268 · Cited by 823
Telomerase and cancer therapeutics
Harley, C. B. (2008) · Nature Reviews Cancer · doi:10.1038/nrc2275 · Cited by 728
Mutations in TERT, the Gene for Telomerase Reverse Transcriptase, in Aplastic Anemia
Yamaguchi, H., Calado, R. T., Ly, H., Kajigaya, S., Baerlocher, G. M., Chanock, S. J., Lansdorp, P. M., & Young, N. S. (2005) · New England Journal of Medicine · doi:10.1056/nejmoa042980 · Cited by 723
Telomerase modulates Wnt signalling by association with target gene chromatin
Park, J.-I., Venteicher, A. S., Hong, J. Y., Choi, J., Jun, S., Shkreli, M., Chang, W., Meng, Z., Cheung, P., Ji, H., et al. (2009) · Nature · doi:10.1038/nature08137 · Cited by 707
The POT1-TPP1 telomere complex is a telomerase processivity factor.
Wang, F., Podell, E. R., Zaug, A. J., Yang, Y., Baciu, P., Cech, T. R., & Lei, M. (2007) · Nature · doi:10.1038/nature05454 · Cited by 704
DNA processing is not required for ATM-mediated telomere damage response after TRF2 deletion
Celli, G. B., & de Lange, T. (2005) · Nature Cell Biology · doi:10.1038/ncb1275 · Cited by 623
A Protein-Counting Mechanism for Telomere Length Regulation in Yeast
Marcand, S., Gilson, E., & Shore, D. (1997) · Science · doi:10.1126/science.275.5302.986 · Cited by 524
Telomerase Reverse Transcriptase Delays Aging in Cancer-Resistant Mice
Tomás-Loba, A., Flores, I., Fernández-Marcos, P. J., Cayuela, M. L., Maraver, A., Tejera, A., Borrás, C., Matheu, A., Klatt, P., Flores, J. M., et al. (2008) · Cell · doi:10.1016/j.cell.2008.09.034 · Cited by 484
Self-citationDisease states associated with telomerase deficiency appear earlier in mice with short telomeres
Herrera, E., Samper, E., Martín‐Caballero, J., Flores, J. M., Lee, H., & Blasco, M. A. (1999) · The EMBO Journal · doi:10.1093/emboj/18.11.2950 · Cited by 471
Self-citationYe, J. Z.-S., Hockemeyer, D., Krutchinsky, A. N., Loayza, D., Hooper, S. M., Chait, B. T., & de Lange, T. (2004) · Genes & Development · doi:10.1101/gad.1215404 · Cited by 459
PTOP interacts with POT1 and regulates its localization to telomeres
Liu, D., Safari, A., O'Connor, M. S., Chan, D. W., Laegeler, A., Qin, J., & Songyang, Z. (2004) · Nature Cell Biology · doi:10.1038/ncb1142 · Cited by 450
Conditional telomerase induction causes proliferation of hair follicle stem cells
Sarin, K. Y., Cheung, P., Gilison, D., Lee, E., Tennen, R. I., Wang, E., Artandi, M. K., Oro, A. E., & Artandi, S. E. (2005) · Nature · doi:10.1038/nature03836 · Cited by 425
Wu, L., Multani, A. S., He, H., Cosme-Blanco, W., Deng, Y., Deng, J. M., Bachilo, O., Pathak, S., Tahara, H., Bailey, S. M., et al. (2006) · Cell · doi:10.1016/j.cell.2006.05.037 · Cited by 422
Savage, S. A., Giri, N., Baerlocher, G. M., Orr, N., Lansdorp, P. M., & Alter, B. P. (2008) · The American Journal of Human Genetics · doi:10.1016/j.ajhg.2007.10.004 · Cited by 414
An RNA-dependent RNA polymerase formed by TERT and the RMRP RNA
Maida, Y., Yasukawa, M., Furuuchi, M., Lassmann, T., Possemato, R., Okamoto, N., Kasim, V., Hayashizaki, Y., Hahn, W. C., & Masutomi, K. (2009) · Nature · doi:10.1038/nature08283 · Cited by 384
Short Dysfunctional Telomeres Impair Tumorigenesis in the INK4aΔ2/3 Cancer-Prone Mouse
Greenberg, R. A., Chin, L., Femino, A., Lee, K.-H., Gottlieb, G. J., Singer, R. H., Greider, C. W., & DePinho, R. A. (1999) · Cell · doi:10.1016/s0092-8674(00)80761-8 · Cited by 367
Telomere Shortening Is Nearly Universal in Pancreatic Intraepithelial Neoplasia
van Heek, N. T., Meeker, A. K., Kern, S. E., Yeo, C. J., Lillemoe, K. D., Cameron, J. L., Offerhaus, G. J. A., Hicks, J. L., Wilentz, R. E., Goggins, M. G., et al. (2002) · The American Journal of Pathology · doi:10.1016/s0002-9440(10)64432-x · Cited by 363
The longest telomeres: a general signature of adult stem cell compartments
Flores, I., Canela, A., Vera, E., Tejera, A., Cotsarelis, G., & Blasco, M. A. (2008) · Genes & Development · doi:10.1101/gad.451008 · Cited by 352
Self-citationTelomerase-deficient mice with short telomeres are resistant to skin tumorigenesis
González-Suárez, E., Samper, E., Flores, J. M., & Blasco, M. A. (2000) · Nature Genetics · doi:10.1038/79089 · Cited by 347
Self-citationCelso, C. L., Prowse, D. M., & Watt, F. M. (2004) · Development · doi:10.1242/dev.01052 · Cited by 339
Choi, J., Southworth, L. K., Sarin, K. Y., Venteicher, A. S., Ma, W., Chang, W., Cheung, P., Jun, S., Artandi, M. K., Shah, N., et al. (2008) · PLoS Genetics · doi:10.1371/journal.pgen.0040010 · Cited by 336
Vulliamy, T., Beswick, R., Kirwan, M., Marrone, A., Digweed, M., Walne, A., & Dokal, I. (2008) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0800042105 · Cited by 334
Walne, A. J., Vulliamy, T., Beswick, R., Kirwan, M., & Dokal, I. (2008) · Blood · doi:10.1182/blood-2008-05-153445 · Cited by 317
Walne, A. J., Vulliamy, T., Marrone, A., Beswick, R., Kirwan, M., Masunari, Y., Al-Qurashi, F.-H., Aljurf, M., & Dokal, I. (2007) · Human Molecular Genetics · doi:10.1093/hmg/ddm111 · Cited by 316
Van Mater, D., Kolligs, F. T., Dlugosz, A. A., & Fearon, E. R. (2003) · Genes & Development · doi:10.1101/gad.1076103 · Cited by 263
Dysfunctional telomeres activate an ATM‐ATR‐dependent DNA damage response to suppress tumorigenesis
Guo, X., Deng, Y., Lin, Y., Cosme‐Blanco, W., Chan, S., He, H., Yuan, G., Brown, E. J., & Chang, S. (2007) · The EMBO Journal · doi:10.1038/sj.emboj.7601893 · Cited by 258
Short Telomeres are Sufficient to Cause the Degenerative Defects Associated with Aging
Armanios, M., Alder, J. K., Parry, E. M., Karim, B., Strong, M. A., & Greider, C. W. (2009) · The American Journal of Human Genetics · doi:10.1016/j.ajhg.2009.10.028 · Cited by 257
Cosme‐Blanco, W., Shen, M., Lazar, A. J. F., Pathak, S., Lozano, G., Multani, A. S., & Chang, S. (2007) · The EMBO Reports · doi:10.1038/sj.embor.7400937 · Cited by 205
TERT promotes cellular and organismal survival independently of telomerase activity
Lee, J., Sung, Y. H., Cheong, C., Choi, Y. S., Jeon, H. K., Sun, W., Hahn, W. C., Ishikawa, F., & Lee, H.-W. (2008) · Oncogene · doi:10.1038/sj.onc.1211037 · Cited by 145
hTERT: a novel endogenous inhibitor of the mitochondrial cell death pathway
Massard, C., Zermati, Y., Pauleau, A.-L., Larochette, N., Métivier, D., Sabatier, L., Kroemer, G., & Soria, J.-C. (2006) · Oncogene · doi:10.1038/sj.onc.1209487 · Cited by 144
Telomerase abrogation dramatically accelerates TRF2-induced epithelial carcinogenesis
Blanco, R., Muñoz, P., Flores, J. M., Klatt, P., & Blasco, M. A. (2007) · Genes & Development · doi:10.1101/gad.406207 · Cited by 135
Self-citationHuman Telomeres Are Hypersensitive to UV-Induced DNA Damage and Refractory to Repair
Rochette, P. J., & Brash, D. E. (2010) · PLoS Genetics · doi:10.1371/journal.pgen.1000926 · Cited by 133
Flores, I., & Blasco, M. A. (2009) · PLoS ONE · doi:10.1371/journal.pone.0004934 · Cited by 83
Self-citationKhoo, C. M., Carrasco, D. R., Bosenberg, M. W., Paik, J.-H., & DePinho, R. A. (2007) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0700093104 · Cited by 52
Flagged first, then by citations
Research works printed but not linked: 141
- Takai, H., Smogorzewska, A. & de Lange, T. DNA damage foci at dysfunctional telomeres. Curr. Biol. 13, 1549–1556 (2003). · DOI · Paper page
- Blasco, M. A. The epigenetic regulation of mammalian telomeres. Nature Rev. Genet. 8, 299–309 (2007). · DOI · Paper page
- Palm, W. & de Lange, T. How shelterin protects mammalian telomeres. Annu. Rev. Genet. 42, 301–334 (2008). · DOI · Paper page
- Blackburn, E. H. Switching and signaling at the telomere. Cell 106, 661–673 (2001). · DOI
- de Lange, T. How telomeres solve the end-protection problem. Science 326, 948–952 (2009). · DOI · Paper page
- Cosme-Blanco, W. & Chang, S. Dual roles of telomere dysfunction in initiation and suppression of tumorigenesis. Exp. Cell Res. 314, 1973–1979 (2008). · DOI
- Feldser, D. M. & Greider, C. W. Short telomeres limit tumor progression in vivo by inducing senescence. Cancer Cell 11, 461–469 (2007). · DOI · Paper page
- Samper, E. et al. Long-term repopulating ability of telomerase-deficient murine hematopoietic stem cells. Blood 99, 2767–2775 (2002). · DOI
- Cayuela, M. L., Flores, J. M. & Blasco, M. A. The telomerase RNA component Terc is required for the tumour-promoting effects of Tert overexpression. EMBO Rep. 6, 268–274 (2005). · DOI
- Flores, I., Cayuela, M. L. & Blasco, M. A. Effects of telomerase and telomere length on epidermal stem cell behavior. Science 309, 1253–1256 (2005). · DOI · Paper page
- Gonzalez-Suarez, E. et al. Increased epidermal tumors and increased skin wound healing in transgenic mice overexpressing the catalytic subunit of telomerase, mTERT, in basal keratinocytes. EMBO J. 20, 2619–2630 (2001). · DOI · Paper page
- Smogorzewska, A. & de Lange, T. Regulation of telomerase by telomeric proteins. Annu. Rev. Biochem. 73, 177–208 (2004). · DOI
- Chiang, Y. J., Kim, S. H., Tessarollo, L., Campisi, J. & Hodes, R. J. Telomere-associated protein TIN2 is essential for early embryonic development through a telomerase-independent pathway. Mol. Cell Biol. 24, 6631–6634 (2004). · DOI
- Hockemeyer, D., Daniels, J. P., Takai, H. & de Lange, T. Recent expansion of the telomeric complex in rodents: Two distinct POT1 proteins protect mouse telomeres. Cell 126, 63–77 (2006). · DOI · Paper page
- Karlseder, J. et al. Targeted deletion reveals an essential function for the telomere length regulator Trf1. Mol. Cell Biol. 23, 6533–6541 (2003). · DOI
- Kibe, T., Osawa, G. A., Keegan, C. E. & de Lange, T. Telomere protection by TPP1 is mediated by POT1a and POT1b. Mol. Cell Biol. 30, 1059–1066 (2010). · DOI
- Lazzerini Denchi, E., Celli, G. & de Lange, T. Hepatocytes with extensive telomere deprotection and fusion remain viable and regenerate liver mass through endoreduplication. Genes Dev. 20, 2648–2653 (2006). · DOI · Paper page
- Martinez, P. & Blasco, M. A. Role of shelterin in cancer and aging. Aging Cell 9, 653–666 (2010). · DOI · Paper page
- Martinez, P. et al. Increased telomere fragility and fusions resulting from TRF1 deficiency lead to degenerative pathologies and increased cancer in mice. Genes Dev. 23, 2060–2075 (2009). This paper describes the effect of TRF1 deletion in MEFs and in the stratified epithelia of mice. It demonstrates that TRF1 is required for telomere capping and for proper telomere replication. · DOI
- Else, T. et al. Genetic p53 deficiency partially rescues the adrenocortical dysplasia phenotype at the expense of increased tumorigenesis. Cancer Cell 15, 465–476 (2009). This paper shows that p53 loss rescues the adrenocortical dysplasia phenotype in mice with a hypomorphic TPP1 mutation but triggers the incidence of carcinomas. It proves the in vivo role of telomere vulnerability in tumorigenesis. · DOI · Paper page
- Tejera, A. et al. TPP1 is required for TERT recruitment, telomere elongation during nuclear reprogramming, and normal skin development in mice. Dev. Cell 18, 691–702 (2010). This papers shows that TPP1 is involved in both end protection and telomerase regulation in vivo . It highlights the relevance of telomerase activity in highly proliferative tissues and in the reprogramming of cells to induce pluripotency. · DOI
- Blasco, M. A. Telomeres and human disease: ageing, cancer and beyond. Nature Rev. Genet. 6, 611–622 (2005). · DOI · Paper page
- Munoz, P., Blanco, R., Flores, J. M. & Blasco, M. A. XPF nuclease-dependent telomere loss and increased DNA damage in mice overexpressing TRF2 result in premature aging and cancer. Nature Genet. 37, 1063–1071 (2005). This paper shows that overexpression of TRF2 results in a severe phenotype in the skin in response to light recapitulating the phenotypes observed in xeroderma pigmentosum. These observations provide in vivo links between the NER pathway and telomere maintenance mechanisms. · DOI
- Poncet, D. et al. Changes in the expression of telomere maintenance genes suggest global telomere dysfunction in B-chronic lymphocytic leukemia. Blood 111, 2388–2391 (2008). · DOI
- Abreu, E. et al. TIN2-tethered TPP1 recruits human telomerase to telomeres in vivo. Mol. Cell Biol. 30, 2971–2982 (2010). This paper demonstrates that TIN2-anchored TPP1 has a role in telomerase recruitment to telomeres in human cells. It also shows that telomerase recruitment does not depend on POT1 or on interaction of the shelterin complex with the single-stranded region of the telomeres. · DOI
- Martinez, P. et al. Mammalian Rap1 controls telomere function and gene expression through binding to telomeric and extratelomeric sites. Nature Cell Biol. 12, 768–780 (2010). This paper demonstrates that RAP1 binds to both telomeres and to extratelomeric genomic sites. It also shows that RAP1 is involved in subtelomeric gene silencing and exerts a transcriptional regulatory function. · DOI
- Teo, H. et al. Telomere-independent Rap1 is an IKK adaptor and regulates NF-kappaB-dependent gene expression. Nature Cell Biol. 12, 758–767 (2010). This paper identifies a cytoplasmatic role of RAP1 and provides a molecular mechanism by which RAP1 exerts a crucial function in the NF-κB signalling pathway, independently of its telomeric function. · DOI
- Zaug, A. J., Podell, E. R., Nandakumar, J. & Cech, T. R. Functional interaction between telomere protein TPP1 and telomerase. Genes Dev. 24, 613–622 (2010). This paper shows that POT1–TPP1 binding to telomeres activates telomerase repeat addition processivity and that this activation is dependent on specific interaction with the TEN domain of TERT. · DOI
- Olovnikov, A. M. A theory of marginotomy. The incomplete copying of template margin in enzymic synthesis of polynucleotides and biological significance of the phenomenon. J. Theor. Biol. 41, 181–190 (1973). · DOI
- Greider, C. W. & Blackburn, E. H. Identification of a specific telomere terminal transferase activity in Tetrahymena extracts. Cell 43, 405–413 (1985). · DOI · Paper page
- Liu, L. et al. Telomere lengthening early in development. Nature Cell Biol. 9, 1436–1441 (2007). · DOI
- Marion, R. M. et al. Telomeres acquire embryonic stem cell characteristics in induced pluripotent stem cells. Cell Stem Cell 4, 141–154 (2009). This paper demonstrates that telomeres are elongated in a telomerase-dependent manner and acquire the epigenetic markers of ES cells during nuclear reprogramming. That initial telomere length in parental cells is a determinant for the iPS generation efficiency is also shown. · DOI · Paper page
- Collado, M., Blasco, M. A. & Serrano, M. Cellular senescence in cancer and aging. Cell 130, 223–233 (2007). · DOI · Paper page
- Mitchell, J. R., Wood, E. & Collins, K. A telomerase component is defective in the human disease dyskeratosis congenita. Nature 402, 551–555 (1999). · DOI · Paper page
- Schoeftner, S. & Blasco, M. A. A 'higher order' of telomere regulation: telomere heterochromatin and telomeric RNAs. EMBO J. 28, 2323–2336 (2009). · DOI
- Benetti, R. et al. Suv4–20h deficiency results in telomere elongation and derepression of telomere recombination. J. Cell Biol. 178, 925–936 (2007). · DOI
- Garcia-Cao, M., O'Sullivan, R., Peters, A. H., Jenuwein, T. & Blasco, M. A. Epigenetic regulation of telomere length in mammalian cells by the Suv39h1 and Suv39h2 histone methyltransferases. Nature Genet. 36, 94–99 (2004). · DOI
- Gonzalo, S. et al. DNA methyltransferases control telomere length and telomere recombination in mammalian cells. Nature Cell Biol. 8, 416–424 (2006). · DOI · Paper page
- Benetti, R. et al. A mammalian microRNA cluster controls DNA methylation and telomere recombination via Rbl2-dependent regulation of DNA methyltransferases. Nature Struct. Mol. Biol. 15, 268–279 (2008). · DOI
- Azzalin, C. M., Reichenbach, P., Khoriauli, L., Giulotto, E. & Lingner, J. Telomeric repeat containing RNA and RNA surveillance factors at mammalian chromosome ends. Science 318, 798–801 (2007). · DOI
- Schoeftner, S. & Blasco, M. A. Developmentally regulated transcription of mammalian telomeres by DNA-dependent RNA polymerase II. Nature Cell Biol. 10, 228–236 (2008). · DOI
- Court, R., Chapman, L., Fairall, L. & Rhodes, D. How the human telomeric proteins TRF1 and TRF2 recognize telomeric DNA: a view from high-resolution crystal structures. EMBO Rep. 6, 39–45 (2005). · DOI
- Bianchi, A. et al. TRF1 binds a bipartite telomeric site with extreme spatial flexibility. EMBO J. 18, 5735–5744 (1999). · DOI · Paper page
- Lei, M., Podell, E. R. & Cech, T. R. Structure of human POT1 bound to telomeric single-stranded DNA provides a model for chromosome end-protection. Nature Struct. Mol. Biol. 11, 1223–1229 (2004). · DOI
- Baumann, P. & Cech, T. R. Pot1, the putative telomere end-binding protein in fission yeast and humans. Science 292, 1171–1175 (2001). · DOI · Paper page
- Loayza, D. & De Lange, T. POT1 as a terminal transducer of TRF1 telomere length control. Nature 423, 1013–1018 (2003). · DOI
- He, H. et al. POT1b protects telomeres from end-to-end chromosomal fusions and aberrant homologous recombination. EMBO J. 25, 5180–5190 (2006). · DOI
- Kim, S. H. et al. TIN2 mediates functions of TRF2 at human telomeres. J. Biol. Chem. 279, 43799–43804 (2004). · DOI
- Chen, Y. et al. A shared docking motif in TRF1 and TRF2 used for differential recruitment of telomeric proteins. Science 319, 1092–1096 (2008). · DOI
- Chen, L. Y., Liu, D. & Songyang, Z. Telomere maintenance through spatial control of telomeric proteins. Mol. Cell Biol. 27, 5898–5909 (2007). · DOI
- Xin, H. et al. TPP1 is a homologue of ciliate TEBP-beta and interacts with POT1 to recruit telomerase. Nature 445, 559–562 (2007). · DOI
- Li, B. & de Lange, T. Rap1 affects the length and heterogeneity of human telomeres. Mol. Biol. Cell 14, 5060–5068 (2003). · DOI
- Li, B., Oestreich, S. & de Lange, T. Identification of human Rap1: implications for telomere evolution. Cell 101, 471–483 (2000). · DOI
- Sfeir, A., Kabir, S., van Overbeek, M., Celli, G. B. & de Lange, T. Loss of Rap1 induces telomere recombination in the absence of NHEJ or a DNA damage signal. Science 327, 1657–1661 (2010). This paper describes a crucial role for RAP1 in the inhibition of homology-directed repair at telomeres. RAP1 is shown to be dispensable for TRF2 function, repression of ATM signalling and the NHEJ pathway. · DOI
- Hanahan, D. & Weinberg, R. A. The hallmarks of cancer. Cell 100, 57–70 (2000). · DOI · Paper page
- Halazonetis, T. D., Gorgoulis, V. G. & Bartek, J. An oncogene-induced DNA damage model for cancer development. Science 319, 1352–1355 (2008). · DOI · Paper page
- Tsantoulis, P. K. et al. Oncogene-induced replication stress preferentially targets common fragile sites in preneoplastic lesions. A genome-wide study. Oncogene 27, 3256–3264 (2008). · DOI
- Engelhardt, M., Drullinsky, P., Guillem, J. & Moore, M. A. Telomerase and telomere length in the development and progression of premalignant lesions to colorectal cancer. Clin. Cancer Res. 3, 1931–1941 (1997).
- Engelhardt, M. et al. Relative contribution of normal and neoplastic cells determines telomerase activity and telomere length in primary cancers of the prostate, colon, and sarcoma. Clin. Cancer Res. 3, 1849–1857 (1997).
- Odagiri, E. et al. Reduction of telomeric length and c-erbB-2 gene amplification in human breast cancer, fibroadenoma, and gynecomastia. Relationship to histologic grade and clinical parameters. Cancer 73, 2978–2984 (1994). · DOI
- Meeker, A. K. et al. Telomere shortening occurs in subsets of normal breast epithelium as well as in situ and invasive carcinoma. Am. J. Pathol. 164, 925–935 (2004). · DOI · Paper page
- Meeker, A. K. et al. Telomere length abnormalities occur early in the initiation of epithelial carcinogenesis. Clin. Cancer Res. 10, 3317–3326 (2004). · DOI · Paper page
- Artandi, S. E. et al. Telomere dysfunction promotes non-reciprocal translocations and epithelial cancers in mice. Nature 406, 641–645 (2000). This paper was the first to demonstrate that critically short telomeres in a Trp53 -deficient genetic background lead to the development of epithelial cancers. It highlights that genomic instability that is induced by telomere dysfunction induces tumorigenesis and establishes a key role for p53 in the cellular response to telomere dysfunction in vivo. · DOI · Paper page
- Denchi, E. L. Give me a break: how telomeres suppress the DNA damage response. DNA Repair (Amst) 8, 1118–1126 (2009). · DOI
- Rai, R. et al. The function of classical and alternative non-homologous end-joining pathways in the fusion of dysfunctional telomeres. EMBO J. 29, 2598–2610 (2010). · DOI
- Espejel, S. et al. Mammalian Ku86 mediates chromosomal fusions and apoptosis caused by critically short telomeres. EMBO J. 21, 2207–2219 (2002). · DOI
- Maser, R. S. et al. DNA-dependent protein kinase catalytic subunit is not required for dysfunctional telomere fusion and checkpoint response in the telomerase-deficient mouse. Mol. Cell Biol. 27, 2253–2265 (2007). · DOI
- Murnane, J. P. Telomere loss as a mechanism for chromosome instability in human cancer. Cancer Res. 70, 4255–4259 (2010). · DOI
- Gilson, E. & Geli, V. How telomeres are replicated. Nature Rev. Mol. Cell Biol. 8, 825–838 (2007). · DOI
- Oganesian, L. & Bryan, T. M. Physiological relevance of telomeric G-quadruplex formation: a potential drug target. Bioessays 29, 155–165 (2007). · DOI
- Cacchione, S., Cerone, M. A. & Savino, M. In vitro low propensity to form nucleosomes of four telomeric sequences. FEBS Lett. 400, 37–41 (1997). · DOI
- Verdun, R. E. & Karlseder, J. The DNA damage machinery and homologous recombination pathway act consecutively to protect human telomeres. Cell 127, 709–720 (2006). · DOI
- McNees, C. J. et al. ATR suppresses telomere fragility and recombination but is dispensable for elongation of short telomeres by telomerase. J. Cell Biol. 188, 639–652 (2010). · DOI
- Casper, A. M., Durkin, S. G., Arlt, M. F. & Glover, T. W. Chromosomal instability at common fragile sites in Seckel syndrome. Am. J. Hum. Genet. 75, 654–660 (2004). · DOI
- Murga, M. et al. A mouse model of ATR-Seckel shows embryonic replicative stress and accelerated aging. Nature Genet. 41, 891–898 (2009). · DOI · Paper page
- Okamoto, K., Iwano, T., Tachibana, M. & Shinkai, Y. Distinct roles of TRF1 in the regulation of telomere structure and lengthening. J. Biol. Chem. 283, 23981–23988 (2008). · DOI
- Else, T. et al. Tpp1/Acd maintains genomic stability through a complex role in telomere protection. Chromosome Res. 15, 1001–1013 (2007). · DOI
- Keegan, C. E. et al. Urogenital and caudal dysgenesis in adrenocortical dysplasia (acd) mice is caused by a splicing mutation in a novel telomeric regulator. Hum. Mol. Genet. 14, 113–123 (2005). · DOI · Paper page
- Carroll, K. A. & Ly, H. Telomere dysfunction in human diseases: the long and short of it! Int. J. Clin. Exp. Pathol. 2, 528–543 (2009).
- Henle, E. S. et al. Sequence-specific DNA cleavage by Fe2+-mediated fenton reactions has possible biological implications. J. Biol. Chem. 274, 962–971 (1999). · DOI
- Oikawa, S., Tada-Oikawa, S. & Kawanishi, S. Site-specific DNA damage at the GGG sequence by UVA involves acceleration of telomere shortening. Biochemistry 40, 4763–4768 (2001). · DOI
- Ayouaz, A., Raynaud, C., Heride, C., Revaud, D. & Sabatier, L. Telomeres: hallmarks of radiosensitivity. Biochimie 90, 60–72 (2008). · DOI
- Sitte, N., Saretzki, G. & von Zglinicki, T. Accelerated telomere shortening in fibroblasts after extended periods of confluency. Free Radic Biol. Med. 24, 885–893 (1998). · DOI
- Munoz, P. et al. TRF1 controls telomere length and mitotic fidelity in epithelial homeostasis. Mol. Cell Biol. 29, 1608–1625 (2009). · DOI
- Zhu, X. D. et al. ERCC1/XPF removes the 3′ overhang from uncapped telomeres and represses formation of telomeric DNA-containing double minute chromosomes. Mol. Cell 12, 1489–1498 (2003). · DOI
- Munoz, P., Blanco, R. & Blasco, M. A. Role of the TRF2 telomeric protein in cancer and ageing. Cell Cycle 5, 718–721 (2006). · DOI
- Sands, A. T., Abuin, A., Sanchez, A., Conti, C. J. & Bradley, A. High susceptibility to ultraviolet-induced carcinogenesis in mice lacking XPC. Nature 377, 162–165 (1995). · DOI
- Nakane, H. et al. High incidence of ultraviolet-B-or chemical-carcinogen-induced skin tumours in mice lacking the xeroderma pigmentosum group A gene. Nature 377, 165–168 (1995). · DOI
- Rajagopalan, H. & Lengauer, C. Aneuploidy and cancer. Nature 432, 338–341 (2004). · DOI
- Sen, S. Aneuploidy and cancer. Curr. Opin. Oncol. 12, 82–88 (2000). · DOI
- Sotillo, R. et al. Mad2 overexpression promotes aneuploidy and tumorigenesis in mice. Cancer Cell 11, 9–23 (2007). · DOI · Paper page
- Weaver, B. A., Silk, A. D., Montagna, C., Verdier-Pinard, P. & Cleveland, D. W. Aneuploidy acts both oncogenically and as a tumor suppressor. Cancer Cell 11, 25–36 (2007). · DOI · Paper page
- Davoli, T., Denchi, E. L. & de Lange, T. Persistent telomere damage induces bypass of mitosis and tetraploidy. Cell 141, 81–93 (2010). This paper provides a molecular mechanism underlying tetraploidization as a consequence of persistent telomere dysfunction. A prolonged DNA damage signal in a TP53 -deficient background and its consequent activation of ATM and ATR results in the inhibition of CDK1–cyclin B, cells bypass mitosis and enter a second S phase becoming tetraploid. A molecular explanation about the high incidence of aneuploid cells in tumours is given. · DOI · Paper page
- Pantic, M. et al. Telomere dysfunction and loss of p53 cooperate in defective mitotic segregation of chromosomes in cancer cells. Oncogene 25, 4413–4420 (2006). · DOI
- Toledo, L. I., Murga, M., Gutierrez-Martinez, P., Soria, R. & Fernandez-Capetillo, O. ATR signaling can drive cells into senescence in the absence of DNA breaks. Genes Dev. 22, 297–302 (2008). · DOI · Paper page
- Denchi, E. L. & de Lange, T. Protection of telomeres through independent control of ATM and ATR by TRF2 and POT1. Nature 448, 1068–1071 (2007). · DOI · Paper page
- Hockemeyer, D., Palm, W., Wang, R. C., Couto, S. S. & de Lange, T. Engineered telomere degradation models dyskeratosis congenita. Genes Dev. 22, 1773–1785 (2008). This paper shows that mice lacking Pot1b in combination with reduced telomerase activity develop phenotypes that recapitulate those observed in patients with dyskeratosis congenita such as hyperpigmentation and fatal bone marrow failure. It highlights the idea that this disease is caused by telomere dysfunction. · DOI
- He, H. et al. Pot1b deletion and telomerase haploinsufficiency in mice initiate an ATR-dependent DNA damage response and elicit phenotypes resembling dyskeratosis congenita. Mol. Cell Biol. 29, 229–240 (2009). · DOI
- Shay, J. W. & Wright, W. E. Telomerase therapeutics for cancer: challenges and new directions. Nature Rev. Drug Discov. 5, 577–584 (2006). · DOI
- Shore, D. & Nasmyth, K. Purification and cloning of a DNA binding protein from yeast that binds to both silencer and activator elements. Cell 51, 721–732 (1987). · DOI
- Kyrion, G., Liu, K., Liu, C. & Lustig, A. J. RAP1 and telomere structure regulate telomere position effects in Saccharomyces cerevisiae. Genes Dev. 7, 1146–1159 (1993). · DOI
- Hecht, A., Laroche, T., Strahl-Bolsinger, S., Gasser, S. M. & Grunstein, M. Histone H3 and H4 N-termini interact with SIR3 and SIR4 proteins: a molecular model for the formation of heterochromatin in yeast. Cell 80, 583–592 (1995). · DOI
- Tanny, J. C., Dowd, G. J., Huang, J., Hilz, H. & Moazed, D. An enzymatic activity in the yeast Sir2 protein that is essential for gene silencing. Cell 99, 735–745 (1999). · DOI
- Carmen, A. A., Milne, L. & Grunstein, M. Acetylation of the yeast histone H4 N. terminus regulates its binding to heterochromatin protein SIR3. J. Biol. Chem. 277, 4778–4781 (2002). · DOI
- Buchman, A. R., Kimmerly, W. J., Rine, J. & Kornberg, R. D. Two DNA-binding factors recognize specific sequences at silencers, upstream activating sequences, autonomously replicating sequences, and telomeres in Saccharomyces cerevisiae. Mol. Cell Biol. 8, 210–225 (1988). · DOI
- Capieaux, E., Vignais, M. L., Sentenac, A. & Goffeau, A. The yeast H+-ATPase gene is controlled by the promoter binding factor TUF. J. Biol. Chem. 264, 7437–7446 (1989). · DOI
- Yang, X., Figueiredo, L. M., Espinal, A., Okubo, E. & Li, B. RAP1 is essential for silencing telomeric variant surface glycoprotein genes in Trypanosoma brucei. Cell 137, 99–109 (2009). · DOI
- Hanaoka, S. et al. NMR structure of the hRap1 Myb motif reveals a canonical three-helix bundle lacking the positive surface charge typical of Myb DNA-binding domains. J. Mol. Biol. 312, 167–175 (2001). · DOI
- Basseres, D. S. & Baldwin, A. S. Nuclear factor-kappaB and inhibitor of kappaB kinase pathways in oncogenic initiation and progression. Oncogene 25, 6817–6830 (2006). · DOI
- Akiyama, M. et al. Nuclear factor-κB p65 mediates tumor necrosis factor alpha-induced nuclear translocation of telomerase reverse transcriptase protein. Cancer Res. 63, 18–21 (2003).
- Artandi, S. E. et al. Constitutive telomerase expression promotes mammary carcinomas in aging mice. Proc. Natl Acad. Sci. USA 99, 8191–8196 (2002). · DOI · Paper page
- Gonzalez-Suarez, E., Flores, J. M. & Blasco, M. A. Cooperation between p53 mutation and high telomerase transgenic expression in spontaneous cancer development. Mol. Cell Biol. 22, 7291–7301 (2002). · DOI
- Canela, A., Martin-Caballero, J., Flores, J. M. & Blasco, M. A. Constitutive expression of tert in thymocytes leads to increased incidence and dissemination of T-cell lymphoma in Lck-Tert mice. Mol. Cell Biol. 24, 4275–4293 (2004). · DOI · Paper page
- Shete, S. et al. Genome-wide association study identifies five susceptibility loci for glioma. Nature Genet. 41, 899–904 (2009). · DOI
- Petersen, G. M. et al. A genome-wide association study identifies pancreatic cancer susceptibility loci on chromosomes 13q22.1, 1q32.1 and 5p15.33. Nature Genet. 42, 224–228 (2010). · DOI
- McKay, J. D. et al. Lung cancer susceptibility locus at 5p15.33. Nature Genet. 40, 1404–1406 (2008). · DOI
- Rafnar, T. et al. Sequence variants at the TERT-CLPTM1L locus associate with many cancer types. Nature Genet. 41, 221–227 (2009). · DOI
- Wang, Y. et al. Common 5p15.33 and 6p21.33 variants influence lung cancer risk. Nature Genet. 40, 1407–1409 (2008). · DOI
- Zhang, A. et al. Genetic alterations in cervical carcinomas: frequent low-level amplifications of oncogenes are associated with human papillomavirus infection. Int. J. Cancer 101, 427–433 (2002). · DOI
- Kang, J. U., Koo, S. H., Kwon, K. C., Park, J. W. & Kim, J. M. Gain at chromosomal region 5p15.33, containing TERT, is the most frequent genetic event in early stages of non-small cell lung cancer. Cancer Genet. Cytogenet. 182, 1–11 (2008). · DOI
- Hao, L. Y. et al. Short telomeres, even in the presence of telomerase, limit tissue renewal capacity. Cell 123, 1121–1131 (2005). · DOI · Paper page
- Reya, T. & Clevers, H. Wnt signalling in stem cells and cancer. Nature 434, 843–850 (2005). · DOI · Paper page
- Cong, Y. & Shay, J. W. Actions of human telomerase beyond telomeres. Cell Res. 18, 725–732 (2008). · DOI
- Ridanpaa, M. et al. Mutations in the RNA component of RNase MRP cause a pleiotropic human disease, cartilage-hair hypoplasia. Cell 104, 195–203 (2001). · DOI
- Santos, J. H., Meyer, J. N., Skorvaga, M., Annab, L. A. & Van Houten, B. Mitochondrial hTERT exacerbates free-radical-mediated mtDNA damage. Aging Cell 3, 399–411 (2004). · DOI
- Santos, J. H., Meyer, J. N. & Van Houten, B. Mitochondrial localization of telomerase as a determinant for hydrogen peroxide-induced mitochondrial DNA damage and apoptosis. Hum. Mol. Genet. 15, 1757–1768 (2006). · DOI
- Haendeler, J. et al. Antioxidants inhibit nuclear export of telomerase reverse transcriptase and delay replicative senescence of endothelial cells. Circ. Res. 94, 768–775 (2004). · DOI
- Zhang, P., Chan, S. L., Fu, W., Mendoza, M. & Mattson, M. P. TERT suppresses apoptotis at a premitochondrial step by a mechanism requiring reverse transcriptase activity and 14-3-3 protein-binding ability. FASEB J. 17, 767–769 (2003). · DOI
- Vidal-Cardenas, S. L. & Greider, C. W. Comparing effects of mTR and mTERT deletion on gene expression and DNA damage response: a critical examination of telomere length maintenance-independent roles of telomerase. Nucleic Acids Res. 38, 60–71 (2010). · DOI
- Erdmann, N. & Harrington, L. A. No attenuation of the ATM-dependent DNA damage response in murine telomerase-deficient cells. DNA Repair (Amst) 8, 347–353 (2009). · DOI
- Zhang, J. Z. Overexpression analysis of plant transcription factors. Curr. Opin. Plant Biol. 6, 30–440 (2003). · DOI
- Barolo, S. Transgenic Wnt/TCF pathway reporters: all you need is Lef? Oncogene 25, 7505–7511 (2006). · DOI
- Cortez-Gonzalez, X. & Zanetti, M. Telomerase immunity from bench to bedside: round one. J. Transl. Med. 5, 12 (2007). · DOI
- Latrick, C. M. & Cech, T. R. POT1-TPP1 enhances telomerase processivity by slowing primer dissociation and aiding translocation. EMBO J. 29, 924–933 (2010). · DOI
- Savage, S. A. et al. Genetic variation in telomeric repeat binding factors 1 and 2 in aplastic anemia. Exp. Hematol. 34, 664–671 (2006). · DOI · Paper page
- Blasco, M. A. & Hahn, W. C. Evolving views of telomerase and cancer. Trends Cell Biol. 13, 289–294 (2003). · DOI · Paper page
- Artandi, S. E. & DePinho, R. A. A critical role for telomeres in suppressing and facilitating carcinogenesis. Curr. Opin. Genet. Dev. 10, 39–46 (2000). · DOI · Paper page
- Begus-Nahrmann, Y. et al. p53 deletion impairs clearance of chromosomal-instable stem cells in aging telomere-dysfunctional mice. Nature Genet. 41, 1138–1143 (2009). · DOI · Paper page
- Takahashi, K. et al. Induction of pluripotent stem cells from adult human fibroblasts by defined factors. Cell 131, 861–872 (2007). · DOI · Paper page
- Tsangaris, E. et al. Ataxia and pancytopenia caused by a mutation in TINF2. Hum. Genet. 124, 507–513 (2008). · DOI
- Ye, J. Z. et al. TIN2 binds TRF1 and TRF2 simultaneously and stabilizes the TRF2 complex on telomeres. J. Biol. Chem. 279, 47264–47271 (2004). · DOI
Cited by
Sorted by citations
Hallmarks of aging: An expanding universe
López-Otín, C., Blasco, M. A., Partridge, L., Serrano, M., & Kroemer, G. (2023) · Cell · doi:10.1016/j.cell.2022.11.001 · Cited by 6,549
Self-citationCellular senescence in aging and age-related disease: from mechanisms to therapy
Childs, B. G., Durik, M., Baker, D. J., & van Deursen, J. M. (2015) · Nature Medicine · doi:10.1038/nm.4000 · Cited by 2,363
Shelterin-Mediated Telomere Protection
de Lange, T. (2018) · Annual Review of Genetics · doi:10.1146/annurev-genet-032918-021921 · Cited by 816
Telomere dysfunction in ageing and age-related diseases
Rossiello, F., Jurk, D., Passos, J. F., & d’Adda di Fagagna, F. (2022) · Nature Cell Biology · doi:10.1038/s41556-022-00842-x · Cited by 754
Telomerase directly regulates NF-κB-dependent transcription
Ghosh, A., Saginc, G., Leow, S. C., Khattar, E., Shin, E. M., Yan, T. D., Wong, M., Zhang, Z., Li, G., Sung, W.-K., et al. (2012) · Nature Cell Biology · doi:10.1038/ncb2621 · Cited by 378
Metadata
- Authors
- Martínez, P., & Blasco, M. A.
- Venue
- Nature Reviews Cancer
- Published
- 2011-02-24
- Volume
- 11
- Issue
- 3
- Pages
- 161-176
- ISSN
- 1474-175X
- 1474-1768
- Cited by
- 468
- References
- 59
- Language
- en
- Licence
- www.springer.com/tdm (tdm)
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