» Articles » PMID: 33533922

Lamin B1 Acetylation Slows the G1 to S Cell Cycle Transition Through Inhibition of DNA Repair

Overview
Specialty Biochemistry
Date 2021 Feb 3
PMID 33533922
Citations 14
Authors
Affiliations
Soon will be listed here.
Abstract

The integrity and regulation of the nuclear lamina is essential for nuclear organization and chromatin stability, with its dysregulation being linked to laminopathy diseases and cancer. Although numerous posttranslational modifications have been identified on lamins, few have been ascribed a regulatory function. Here, we establish that lamin B1 (LMNB1) acetylation at K134 is a molecular toggle that controls nuclear periphery stability, cell cycle progression, and DNA repair. LMNB1 acetylation prevents lamina disruption during herpesvirus type 1 (HSV-1) infection, thereby inhibiting virus production. We also demonstrate the broad impact of this site on laminar processes in uninfected cells. LMNB1 acetylation negatively regulates canonical nonhomologous end joining by impairing the recruitment of 53BP1 to damaged DNA. This defect causes a delay in DNA damage resolution and a persistent activation of the G1/S checkpoint. Altogether, we reveal LMNB1 acetylation as a mechanism for controlling DNA repair pathway choice and stabilizing the nuclear periphery.

Citing Articles

Impact of Nuclear Peripheral Chromatin Lamin LMNB1 Gene in the Proliferation and Migration of Glioma Cells.

Shi X, Zhang T, Li C, Guo C, Yang Q, Feng Y Neurochem Res. 2024; 50(1):46.

PMID: 39636549 DOI: 10.1007/s11064-024-04298-3.


Claudin-4 remodeling of nucleus-cell cycle crosstalk maintains ovarian tumor genome stability and drives resistance to genomic instability-inducing agents.

Villagomez F, Lang J, Nunez-Avellaneda D, Behbakht K, Dimmick H, Webb P bioRxiv. 2024; .

PMID: 39282307 PMC: 11398366. DOI: 10.1101/2024.09.04.611120.


DNA-PK and ATM drive phosphorylation signatures that antagonistically regulate cytokine responses to herpesvirus infection or DNA damage.

Justice J, Reed T, Phelan B, Greco T, Hutton J, Cristea I Cell Syst. 2024; 15(4):339-361.e8.

PMID: 38593799 PMC: 11098675. DOI: 10.1016/j.cels.2024.03.003.


Intercellular communication within the virus microenvironment affects the susceptibility of cells to secondary viral infections.

Song B, Sheng X, Justice J, Lum K, Metzger P, Cook K Sci Adv. 2023; 9(19):eadg3433.

PMID: 37163594 PMC: 10171814. DOI: 10.1126/sciadv.adg3433.


CircPTPRA promotes the progression of pancreatic ductal adenocarcinoma via the miR-140-5p/LMNB1 axis.

Fu W, Wang X, Xiang J, Chen S, Xia R, Xie F Cancer Med. 2023; 12(10):11651-11671.

PMID: 37041721 PMC: 10242365. DOI: 10.1002/cam4.5869.


References
1.
Davison A, Eberle R, Ehlers B, Hayward G, McGeoch D, Minson A . The order Herpesvirales. Arch Virol. 2008; 154(1):171-7. PMC: 3552636. DOI: 10.1007/s00705-008-0278-4. View

2.
Simon D, Wilson K . Partners and post-translational modifications of nuclear lamins. Chromosoma. 2013; 122(1-2):13-31. PMC: 3619935. DOI: 10.1007/s00412-013-0399-8. View

3.
Branon T, Bosch J, Sanchez A, Udeshi N, Svinkina T, Carr S . Efficient proximity labeling in living cells and organisms with TurboID. Nat Biotechnol. 2018; 36(9):880-887. PMC: 6126969. DOI: 10.1038/nbt.4201. View

4.
Buchkovich N, Maguire T, Alwine J . Role of the endoplasmic reticulum chaperone BiP, SUN domain proteins, and dynein in altering nuclear morphology during human cytomegalovirus infection. J Virol. 2010; 84(14):7005-17. PMC: 2898220. DOI: 10.1128/JVI.00719-10. View

5.
Bennardo N, Cheng A, Huang N, Stark J . Alternative-NHEJ is a mechanistically distinct pathway of mammalian chromosome break repair. PLoS Genet. 2008; 4(6):e1000110. PMC: 2430616. DOI: 10.1371/journal.pgen.1000110. View