Publication: Telomerase reverse transcriptase delays aging in cancer-resistant mice.
Authors
Tomas Loba, Antonia ; Flores, Ignacio ; Fernandez-Marcos, Pablo J ; Cayuela, Maria L ; Maraver, Antonio ; Tejera, Agueda ; Borras, Consuelo ; Matheu, Ander ; Klatt, Peter ; Flores, Juana M ; ViƱa, Jose ; Serrano, Manuel ; Blasco, Maria
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Blasco, MarĆa Antonia
Publisher
Cell Press
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DOI
https://doi.org/10.1016/j.cell.2008.09.034
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info:eu-repo/semantics/article
Description
Ā©2008 Elsevier Inc. This document is the Published version of a Published Work that appeared in final form in Cell. To access the final edited and published work see https://doi.org/10.1016/j.cell.2008.09.034
Abstract
Telomerase confers limitless proliferative potential to most human cells through its ability to elongate telomeres, the natural ends of chromosomes, which otherwise would undergo progressive attrition and eventually compromise cell viability. However, the role of telomerase in organismal aging has remained unaddressed, in part because of the cancer-promoting activity of telomerase. To circumvent this problem, we have constitutively expressed telomerase reverse transcriptase (TERT), one of the components of telomerase, in mice engineered to be cancer resistant by means of enhanced expression of the tumor suppressors p53, p16, and p19ARF. In this context, TERT overexpression improves the fitness of epithelial barriers, particularly the skin and the intestine, and produces a systemic delay in aging accompanied by extension of the median life span. These results demonstrate that constitutive expression of Tert provides antiaging activity in the context of a mammalian organism.
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Citation
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1-ene-2999
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