Evidence map›Paper›PMID 33257806›Full record

ArticleNature cell biology2020

Nuclear F-actin counteracts nuclear deformation and promotes fork repair during replication stress.

Noa Lamm, Mark N Read, Max Nobis, David Van Ly, Scott G Page, V Pragathi Masamsetti, Paul Timpson, Maté Biro, Anthony J Cesare

Abstract read
PubMed Publisher
In one paragraph

Article in Nature cell biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed
9.6field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

85 citing papers in PubMed, 155 citations in OpenAlex.

  1. Review
  2. The Role of Arp2/3 in End-Resection During DNA Double-Strand Break Repair.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026
    Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Recent advances in nuclear actin research.Nucleus (Austin, Tex.) · 2025
    Review
  14. Article
  15. Article
  16. Review
  17. Mechanisms and genomic implications of break-induced replication.Nature structural & molecular biology · 2025
    Review
  18. Article
  19. Replication stress-induced nuclear hypertrophy alters chromatin topology and impacts cancer cell fitness.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  20. Review

25 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Noa LammGenome Integrity Unit, Children's Medical Research Institute, University of Sydney, Westmead, New South Wales, Australia.
Mark N ReadSchool of Computer Science, The Westmead Initiative and The Charles Perkins Centre, University of Sydney, Camperdown, New South Wales, Australia.ORCID http://orcid.org/0000-0002-1481-4780
Max NobisThe Garvan Institute of Medical Research, St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia.
David Van LyGenome Integrity Unit, Children's Medical Research Institute, University of Sydney, Westmead, New South Wales, Australia.
Scott G PageGenome Integrity Unit, Children's Medical Research Institute, University of Sydney, Westmead, New South Wales, Australia.
V Pragathi MasamsettiGenome Integrity Unit, Children's Medical Research Institute, University of Sydney, Westmead, New South Wales, Australia.ORCID http://orcid.org/0000-0002-0251-1707
Paul TimpsonThe Garvan Institute of Medical Research, St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia.
Maté BiroEMBL Australia, Single Molecule Science node, School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia.ORCID http://orcid.org/0000-0001-5852-3726
Anthony J CesareGenome Integrity Unit, Children's Medical Research Institute, University of Sydney, Westmead, New South Wales, Australia. tcesare@cmri.org.au.ORCID http://orcid.org/0000-0002-0864-1254
The University of Sydney · AUGarvan Institute of Medical Research · AUUNSW Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Filamentous actin (F-actin) provides cells with mechanical support and promotes the mobility of intracellular structures. Although F-actin is traditionally considered to be cytoplasmic, here we reveal that nuclear F-actin participates in the replication stress response. Using live and super-resolution imaging, we find that nuclear F-actin is polymerized in response to replication stress through a pathway regulated by ATR-dependent activation of mTORC1, and nucleation through IQGAP1, WASP and ARP2/3. During replication stress, nuclear F-actin increases the nuclear volume and sphericity to counteract nuclear deformation. Furthermore, F-actin and myosin II promote the mobility of stressed-replication foci to the nuclear periphery through increasingly diffusive motion and directed movements along the nuclear actin filaments. These actin functions promote replication stress repair and suppress chromosome and mitotic abnormalities. Moreover, we find that nuclear F-actin is polymerized in vivo in xenograft tumours after treatment with replication-stress-inducing chemotherapeutic agents, indicating that this pathway has a role in human disease.

Indexed as

Actin CytoskeletonActinsAnimalsAntineoplastic AgentsCarboplatinCell LineCell Line, TumorCell NucleusDNA RepairDNA ReplicationHumansMechanistic Target of Rapamycin Complex 1Mice, Inbred NODMice, KnockoutMice, SCIDNeoplasmsActinsAntineoplastic AgentsCarboplatinMechanistic Target of Rapamycin Complex 1

Identifiers

PMID33257806
OpenAlexW3109203712

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.