Evidence map›Paper›PMID 30224463›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2018

Fibroblasts lacking nuclear lamins do not have nuclear blebs or protrusions but nevertheless have frequent nuclear membrane ruptures.

Natalie Y Chen, Paul Kim, Thomas A Weston, Lovelyn Edillo, Yiping Tu, Loren G Fong, Stephen G Young

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
3.4field-weighted citation impact, top 6% 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

73 citing papers in PubMed, 96 citations in OpenAlex.

  1. Review
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  7. Article
  8. ESCRT-III function in membrane fission and repair.Nature reviews. Molecular cell biology · 2026
    Review
  9. Micronuclei: origins, assays, mechanisms, diseases and treatments.Signal transduction and targeted therapy · 2026
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
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  17. Article
  18. Article
  19. Article
  20. How the chromatin landscape influences nuclear morphology.Frontiers in cell and developmental biology · 2025
    Review

13 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

7 authors at 1 institution in 1 country.

Natalie Y ChenDepartment of Medicine, University of California, Los Angeles, CA 90095.
Paul KimDepartment of Medicine, University of California, Los Angeles, CA 90095.ORCID 0000-0002-8429-651X
Thomas A WestonDepartment of Medicine, University of California, Los Angeles, CA 90095.
Lovelyn EdilloDepartment of Medicine, University of California, Los Angeles, CA 90095.
Yiping TuDepartment of Medicine, University of California, Los Angeles, CA 90095.
Loren G FongDepartment of Medicine, University of California, Los Angeles, CA 90095; lfong@mednet.ucla.edu sgyoung@mednet.ucla.edu.
Stephen G YoungDepartment of Medicine, University of California, Los Angeles, CA 90095; lfong@mednet.ucla.edu sgyoung@mednet.ucla.edu.
University of California, Los Angeles · US

Funding

Pilot and Feasibility ProgramP30DK041301 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ROZENGURT, JUAN ENRIQUE · 1990 to 2019
$18.0M
Training in Molecular, Cellular &Integrative PhysiologyT32GM065823 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI TIDBALL, JAMES G · 2003 to 2017
$2.1M
ZMPSTE24, HIV treatment regimens, and atherosclerotic heart diseaseR01HL126551 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI YOUNG, STEPHEN G. · 2014 to 2017
$1.8M
Development of a New Therapeutic Approach for Prelamin A DiseasesR01AG047192 · NIA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FONG, LOREN GI · 2014 to 2018
$1.6M
NHLBI NIH HHS R01 HL126551NIA NIH HHS R01 AG047192NIDDK NIH HHS P30 DK041301NIGMS NIH HHS T32 GM065823
6 · The paper itself

Abstract

The nuclear lamina, an intermediate filament meshwork lining the inner nuclear membrane, is formed by the nuclear lamins (lamins A, C, B1, and B2). Defects or deficiencies in individual nuclear lamin proteins have been reported to elicit nuclear blebs (protrusions or outpouchings of the nuclear envelope) and increase susceptibility for nuclear membrane ruptures. It is unclear, however, how a complete absence of nuclear lamins would affect nuclear envelope morphology and nuclear membrane integrity (i.e., whether nuclear membrane blebs or protrusions would occur and, if not, whether cells would be susceptible to nuclear membrane ruptures). To address these issues, we generated mouse embryonic fibroblasts (MEFs) lacking all nuclear lamins. The nuclear lamin-deficient MEFs had irregular nuclear shapes but no nuclear blebs or protrusions. Despite a virtual absence of nuclear blebs, MEFs lacking nuclear lamins had frequent, prolonged, and occasionally nonhealing nuclear membrane ruptures. By transmission electron microscopy, the inner nuclear membrane in nuclear lamin-deficient MEFs have a "wavy" appearance, and there were discrete discontinuities in the inner and outer nuclear membranes. Nuclear membrane ruptures were accompanied by a large increase in DNA damage, as judged by γ-H2AX foci. Mechanical stress increased both nuclear membrane ruptures and DNA damage, whereas minimizing transmission of cytoskeletal forces to the nucleus had the opposite effects.

Indexed as

DNA DamageStress, MechanicalAnimalsEmbryo, MammalianFibroblastsLaminsMiceMice, KnockoutNuclear EnvelopeLaminsnuclear envelopenuclear laminanuclear membrane rupture

Identifiers

PMID30224463
PMCPMC6176609
OpenAlexW2890492619

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.