Telomere Maintenance and the cGAS-STING Pathway in Cancer

Cancer cells exhibit the unique characteristics of high proliferation and aberrant DNA damage response, which prevents cancer therapy from effectively eliminating them. The machinery required for telomere maintenance, such as telomerase and the alternative lengthening of telomeres (ALT), enables can...

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Main Authors: Hiroshi Ebata, Tze Mun Loo, Akiko Takahashi
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/11/12/1958
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author Hiroshi Ebata
Tze Mun Loo
Akiko Takahashi
author_facet Hiroshi Ebata
Tze Mun Loo
Akiko Takahashi
author_sort Hiroshi Ebata
collection DOAJ
description Cancer cells exhibit the unique characteristics of high proliferation and aberrant DNA damage response, which prevents cancer therapy from effectively eliminating them. The machinery required for telomere maintenance, such as telomerase and the alternative lengthening of telomeres (ALT), enables cancer cells to proliferate indefinitely. In addition, the molecules in this system are involved in noncanonical pro-tumorigenic functions. Of these, the function of the cyclic GMP–AMP synthase (cGAS)-stimulator of interferon genes (STING) pathway, which contains telomere-related molecules, is a well-known contributor to the tumor microenvironment (TME). This review summarizes the current knowledge of the role of telomerase and ALT in cancer regulation, with emphasis on their noncanonical roles beyond telomere maintenance. The components of the cGAS-STING pathway are summarized with respect to intercell communication in the TME. Elucidating the underlying functional connection between telomere-related molecules and TME regulation is important for the development of cancer therapeutics that target cancer-specific pathways in different contexts. Finally, strategies for designing new cancer therapies that target cancer cells and the TME are discussed.
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spelling doaj.art-5fcf279be8fb400fa82a112e2796eedd2023-11-23T16:02:11ZengMDPI AGCells2073-44092022-06-011112195810.3390/cells11121958Telomere Maintenance and the cGAS-STING Pathway in CancerHiroshi Ebata0Tze Mun Loo1Akiko Takahashi2Department of Biological Sciences, Faculty of Science, The University of Tokyo, Tokyo 113-0033, JapanProject for Cellular Senescence, Cancer Institute, Japanese Foundation for Cancer Research, Tokyo 135-8550, JapanProject for Cellular Senescence, Cancer Institute, Japanese Foundation for Cancer Research, Tokyo 135-8550, JapanCancer cells exhibit the unique characteristics of high proliferation and aberrant DNA damage response, which prevents cancer therapy from effectively eliminating them. The machinery required for telomere maintenance, such as telomerase and the alternative lengthening of telomeres (ALT), enables cancer cells to proliferate indefinitely. In addition, the molecules in this system are involved in noncanonical pro-tumorigenic functions. Of these, the function of the cyclic GMP–AMP synthase (cGAS)-stimulator of interferon genes (STING) pathway, which contains telomere-related molecules, is a well-known contributor to the tumor microenvironment (TME). This review summarizes the current knowledge of the role of telomerase and ALT in cancer regulation, with emphasis on their noncanonical roles beyond telomere maintenance. The components of the cGAS-STING pathway are summarized with respect to intercell communication in the TME. Elucidating the underlying functional connection between telomere-related molecules and TME regulation is important for the development of cancer therapeutics that target cancer-specific pathways in different contexts. Finally, strategies for designing new cancer therapies that target cancer cells and the TME are discussed.https://www.mdpi.com/2073-4409/11/12/1958DNA damagetelomerecGAS-STINGcancerALTcellular senescence
spellingShingle Hiroshi Ebata
Tze Mun Loo
Akiko Takahashi
Telomere Maintenance and the cGAS-STING Pathway in Cancer
Cells
DNA damage
telomere
cGAS-STING
cancer
ALT
cellular senescence
title Telomere Maintenance and the cGAS-STING Pathway in Cancer
title_full Telomere Maintenance and the cGAS-STING Pathway in Cancer
title_fullStr Telomere Maintenance and the cGAS-STING Pathway in Cancer
title_full_unstemmed Telomere Maintenance and the cGAS-STING Pathway in Cancer
title_short Telomere Maintenance and the cGAS-STING Pathway in Cancer
title_sort telomere maintenance and the cgas sting pathway in cancer
topic DNA damage
telomere
cGAS-STING
cancer
ALT
cellular senescence
url https://www.mdpi.com/2073-4409/11/12/1958
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