ATR promotes clearance of damaged DNA and damaged cells by rupturing micronuclei.

ATR CDK1 DNA damage STING TREX1 autophagosome autophagy cGAS cell-autonomous cell-non-autonomous clearance damaged DNA micronuclear DNA micronuclei micronucleus natural killer cells nuclear envelope rupture

Journal

Molecular cell
ISSN: 1097-4164
Titre abrégé: Mol Cell
Pays: United States
ID NLM: 9802571

Informations de publication

Date de publication:
19 10 2023
Historique:
received: 25 04 2022
revised: 28 06 2023
accepted: 06 09 2023
pmc-release: 19 10 2024
medline: 27 10 2023
pubmed: 4 10 2023
entrez: 3 10 2023
Statut: ppublish

Résumé

The human ataxia telangiectasia mutated and Rad3-related (ATR) kinase functions in the nucleus to protect genomic integrity. Micronuclei (MN) arise from genomic and chromosomal instability and cause aneuploidy and chromothripsis, but how MN are removed is poorly understood. Here, we show that ATR is active in MN and promotes their rupture in S phase by phosphorylating Lamin A/C at Ser395, which primes Ser392 for CDK1 phosphorylation and destabilizes the MN envelope. In cells harboring MN, ATR or CDK1 inhibition reduces MN rupture. Consequently, ATR inhibitor (ATRi) diminishes activation of the cytoplasmic DNA sensor cGAS and compromises cGAS-dependent autophagosome accumulation in MN and clearance of micronuclear DNA. Furthermore, ATRi reduces cGAS-mediated senescence and killing of MN-bearing cancer cells by natural killer cells. Thus, in addition to the canonical ATR signaling pathway, an ATR-CDK1-Lamin A/C axis promotes MN rupture to clear damaged DNA and cells, protecting the genome in cell populations through unexpected cell-autonomous and cell-non-autonomous mechanisms.

Identifiants

pubmed: 37788673
pii: S1097-2765(23)00698-6
doi: 10.1016/j.molcel.2023.09.003
pmc: PMC10599252
mid: NIHMS1935060
pii:
doi:

Substances chimiques

Lamin Type A 0
Nucleotidyltransferases EC 2.7.7.-
DNA 9007-49-2
Ataxia Telangiectasia Mutated Proteins EC 2.7.11.1
ATR protein, human EC 2.7.11.1

Types de publication

Journal Article Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

3642-3658.e4

Subventions

Organisme : NIGMS NIH HHS
ID : R35 GM150648
Pays : United States
Organisme : NCI NIH HHS
ID : R01 CA218856
Pays : United States
Organisme : NCI NIH HHS
ID : K22 CA244865
Pays : United States
Organisme : NCI NIH HHS
ID : R01 CA197779
Pays : United States
Organisme : NCI NIH HHS
ID : F31 CA275096
Pays : United States

Commentaires et corrections

Type : CommentIn

Informations de copyright

Copyright © 2023 Elsevier Inc. All rights reserved.

Déclaration de conflit d'intérêts

Declaration of interests L.Z. is a member of the advisory board of Molecular Cell.

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Auteurs

Yoon Ki Joo (YK)

Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06511, USA; Yale Cancer Biology Institute, Yale University, New Haven, CT 06516, USA.

Elizabeth M Black (EM)

Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06511, USA; Yale Cancer Biology Institute, Yale University, New Haven, CT 06516, USA.

Isabelle Trier (I)

Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06511, USA; Yale Cancer Biology Institute, Yale University, New Haven, CT 06516, USA.

Wisse Haakma (W)

Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, Boston, MA 02129, USA.

Lee Zou (L)

Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, Boston, MA 02129, USA; Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA; Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC 27708, USA. Electronic address: lee.zou@duke.edu.

Lilian Kabeche (L)

Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06511, USA; Yale Cancer Biology Institute, Yale University, New Haven, CT 06516, USA. Electronic address: lilian.kabeche@yale.edu.

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Classifications MeSH