Evidence map›Paper›PMID 35665815›Full record

ArticleJournal of cell science2022

Nuclear F-actin and Lamin A antagonistically modulate nuclear shape.

Sampada Mishra, Daniel L Levy

Open access · hybridAbstract read
In one paragraph

Article in Journal of cell science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

19 citing papers in PubMed, 20 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Nucleoskeletal Proteins in Early Embryogenesis.Advances in experimental medicine and biology · 2026
    Review
  6. Article
  7. Recent advances in nuclear actin research.Nucleus (Austin, Tex.) · 2025
    Review
  8. Article
  9. Review
  10. Article
  11. How the chromatin landscape influences nuclear morphology.Frontiers in cell and developmental biology · 2025
    Review
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Nuclear growth and import can be uncoupled.Molecular biology of the cell · 2024
    Article
  18. The Functions of Pt-DIC and Pt-Lamin B in Spermatogenesis ofInternational journal of molecular sciences · 2023
    Article
  19. Article
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

2 authors at 1 institution in 1 country.

Sampada MishraDepartment of Molecular Biology, University of Wyoming, Laramie, WY 82071, USA.
Daniel L LevyDepartment of Molecular Biology, University of Wyoming, Laramie, WY 82071, USA.ORCID 0000-0002-7853-3275
University of Wyoming · US

Funding

Wyoming INBRE Phase 4- Equipment Supplement for x-ray diffractometer for Center for Advanced Scientific InstrumentationP20GM103432 · NIGMS · UNIVERSITY OF WYOMING · PI Nicolas A. Blouin · 2012 to 2026
$56.8M
Mechanisms of nuclear size regulationR35GM134885 · NIGMS · UNIVERSITY OF WYOMING · PI Daniel Leon Levy · 2020 to 2026
$2.5M
National Institute of Food and Agriculture 1012152NIGMS NIH HHS P20 GM103432NIGMS NIH HHS R35 GM134885NIH HHS
6 · The paper itself

Abstract

Nuclear shape influences cell migration, gene expression and cell cycle progression, and is altered in disease states like laminopathies and cancer. What factors and forces determine nuclear shape? We find that nuclei assembled in Xenopus egg extracts in the presence of dynamic F-actin exhibit a striking bilobed nuclear morphology with distinct membrane compositions in the two lobes and accumulation of F-actin at the inner nuclear envelope. The addition of Lamin A (encoded by lmna), which is absent from Xenopus eggs, results in rounder nuclei, suggesting that opposing nuclear F-actin and Lamin A forces contribute to the regulation of nuclear shape. Nuclear F-actin also promotes altered nuclear shape in Lamin A-knockdown HeLa cells and, in both systems, abnormal nuclear shape is driven by formins and not Arp2/3 or myosin. Although the underlying mechanisms might differ in Xenopus and HeLa cells, we propose that nuclear F-actin filaments nucleated by formins impart outward forces that lead to altered nuclear morphology unless Lamin A is present. Targeting nuclear actin dynamics might represent a novel approach to rescuing disease-associated defects in nuclear shape.

Indexed as

ActinsLamin Type AActin CytoskeletonAnimalsCell NucleusForminsHeLa CellsHumansNuclear EnvelopeXenopus laevisActinsForminsLamin Type AActinForminsHeLaLamin ANuclear shapeXenopus

Identifiers

PMID35665815
PMCPMC9377710
OpenAlexW4281824426

What OpenQuestion holds

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LicenceCC BY
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.