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dc.contributor.authorAguado, J
dc.contributor.authorChaggar, HK
dc.contributor.authorGómez-Inclán, C
dc.contributor.authorShaker, MR
dc.contributor.authorLeeson, HC
dc.contributor.authorMackay-Sim, A
dc.contributor.authorWolvetang, EJ
dc.date.accessioned2021-09-10T04:14:46Z
dc.date.available2021-09-10T04:14:46Z
dc.date.issued2021
dc.identifier.issn1474-9718
dc.identifier.doi10.1111/acel.13468
dc.identifier.urihttp://hdl.handle.net/10072/407870
dc.description.abstractAtaxia-telangiectasia (A-T) is a genetic disorder caused by the lack of functional ATM kinase. A-T is characterized by chronic inflammation, neurodegeneration and premature ageing features that are associated with increased genome instability, nuclear shape alterations, micronuclei accumulation, neuronal defects and premature entry into cellular senescence. The causal relationship between the detrimental inflammatory signature and the neurological deficiencies of A-T remains elusive. Here, we utilize human pluripotent stem cell-derived cortical brain organoids to study A-T neuropathology. Mechanistically, we show that the cGAS-STING pathway is required for the recognition of micronuclei and induction of a senescence-associated secretory phenotype (SASP) in A-T olfactory neurosphere-derived cells and brain organoids. We further demonstrate that cGAS and STING inhibition effectively suppresses self-DNA-triggered SASP expression in A-T brain organoids, inhibits astrocyte senescence and neurodegeneration, and ameliorates A-T brain organoid neuropathology. Our study thus reveals that increased cGAS and STING activity is an important contributor to chronic inflammation and premature senescence in the central nervous system of A-T and constitutes a novel therapeutic target for treating neuropathology in A-T patients.
dc.description.peerreviewedYes
dc.languageen
dc.publisherWiley
dc.relation.ispartofjournalAging Cell
dc.subject.fieldofresearchBiological sciences
dc.subject.fieldofresearchHealth sciences
dc.subject.fieldofresearchcode31
dc.subject.fieldofresearchcode42
dc.titleInhibition of the cGAS-STING pathway ameliorates the premature senescence hallmarks of Ataxia-Telangiectasia brain organoids
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationAguado, J; Chaggar, HK; Gómez-Inclán, C; Shaker, MR; Leeson, HC; Mackay-Sim, A; Wolvetang, EJ, Inhibition of the cGAS-STING pathway ameliorates the premature senescence hallmarks of Ataxia-Telangiectasia brain organoids, Aging Cell, 2021
dcterms.licensehttps://creativecommons.org/licenses/by/4.0/
dc.date.updated2021-09-08T03:32:34Z
dc.description.versionVersion of Record (VoR)
gro.description.notepublicThis publication has been entered in Griffith Research Online as an advanced online version.
gro.rights.copyright© 2021 The Authors. Aging Cell published by Anatomical Society and John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorMackay-Sim, Alan


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