Evidence map›Paper›PMID 15548602›Full record

ArticleMolecular biology of the cell2005

Cdc42 mediates nucleus movement and MTOC polarization in Swiss 3T3 fibroblasts under mechanical shear stress.

Jerry S H Lee, Melissa I Chang, Yiider Tseng, Denis Wirtz

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

36 citing papers in PubMed, 94 citations in OpenAlex.

  1. Review
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  5. Article
  6. Perioperative implication of the endothelial glycocalyx.Korean journal of anesthesiology · 2018
    Review
  7. Article
  8. Article
  9. Article
  10. The Mechanobiology of Aging.Annual review of biomedical engineering · 2015
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Nuclear envelope in nuclear positioning and cell migration.Advances in experimental medicine and biology · 2014
    Review
  17. Article
  18. Article
  19. Focal adhesion size uniquely predicts cell migration.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2013
    Article
  20. 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

4 authors at 1 institution in 1 country.

Jerry S H LeeDepartment of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD 21218, USA.
Melissa I Chang
Yiider Tseng
Denis Wirtz
Johns Hopkins University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nucleus movement is essential during nucleus positioning for tissue growth and development in eukaryotic cells. However, molecular regulators of nucleus movement in interphase fibroblasts have yet to be identified. Here, we report that nuclei of Swiss 3T3 fibroblasts undergo enhanced movement when subjected to shear flows. Such movement includes both rotation and translocation and is dependent on microtubule, not F-actin, structure. Through inactivation of Rho GTPases, well-known mediators of cytoskeleton reorganization, we demonstrate that Cdc42, not RhoA or Rac1, controls the extent of nucleus translocation, and more importantly, of nucleus rotation in the cytoplasm. In addition to generating nuclei movement, we find that shear flows also causes repositioning of the MTOC in the direction of flow. This behavior is also controlled by Cdc42 via the Par6/protein kinase Czeta pathway. These results are the first to establish Cdc42 as a molecular regulator of not only shear-induced MTOC polarization in Swiss 3T3 fibroblasts, but also of shear-induced microtubule-dependent nucleus movement. We propose that the movements of MTOC and nucleus are coupled chemically, because they are both regulated by Cdc42 and dependent on microtubule structure, and physically, possibly via Hook/SUN family homologues similar to those found in Caenorhabditis elegans.

Indexed as

Cell Polarity3T3 CellsActinsAnimalsAntibodies, Monoclonalcdc42 GTP-Binding ProteinCell NucleusFibroblastsFluorescent DyesGreen Fluorescent ProteinsIndolesKineticsMiceMicroscopy, VideoMicrotubule-Organizing CenterMicrotubulesActinsAntibodies, Monoclonalcdc42 GTP-Binding ProteinDAPIFluorescent DyesGreen Fluorescent ProteinsIndolesNocodazoleProtein Kinase CProtein Kinase C zetaNASA Discipline Cell BiologyNASA Discipline Cell BiotechnologyNon-NASA Center

Identifiers

PMID15548602
PMCPMC545918
OpenAlexW2132804958

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.