Evidence map›Paper›PMID 20630946›Full record

ArticleDevelopment (Cambridge, England)2010

Macroscopic stiffening of embryonic tissues via microtubules, RhoGEF and the assembly of contractile bundles of actomyosin.

Jian Zhou, Hye Young Kim, James H-C Wang, Lance A Davidson

Abstract read
In one paragraph

Article in Development (Cambridge, England), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

52 citing papers in PubMed, 80 citations in OpenAlex.

  1. Article
  2. Shape, Strain, and Stability: Epithelia Under High Strain.bioRxiv : the preprint server for biology · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Conserved physical mechanisms of cell and tissue elongation.Development (Cambridge, England) · 2024
    Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Mechanics of Anteroposterior Axis Formation in Vertebrates.Annual review of cell and developmental biology · 2019
    Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. 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.

Jian ZhouDepartment of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA.
Hye Young Kim
James H-C Wang
Lance A Davidson
University of Pittsburgh · US

Funding

The Biomechanics of morphogenesis in the frogR01HD044750 · NICHD · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI DAVIDSON, LANCE A. · 2005 to 2020
$3.8M
Biomechanics of MorphogenesisR37HD044750 · NICHD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI LANCE A. DAVIDSON · 2022 to 2026
$2.1M
NICHD NIH HHS HD044750NICHD NIH HHS R01 HD044750NICHD NIH HHS R37 HD044750
6 · The paper itself

Abstract

During morphogenesis, forces generated by cells are coordinated and channeled by the viscoelastic properties of the embryo. Microtubules and F-actin are considered to be two of the most important structural elements within living cells accounting for both force production and mechanical stiffness. In this paper, we investigate the contribution of microtubules to the stiffness of converging and extending dorsal tissues in Xenopus laevis embryos using cell biological, biophysical and embryological techniques. Surprisingly, we discovered that depolymerizing microtubules stiffens embryonic tissues by three- to fourfold. We attribute tissue stiffening to Xlfc, a previously identified RhoGEF, which binds microtubules and regulates the actomyosin cytoskeleton. Combining drug treatments and Xlfc activation and knockdown lead us to the conclusion that mechanical properties of tissues such as viscoelasticity can be regulated through RhoGTPase pathways and rule out a direct contribution of microtubules to tissue stiffness in the frog embryo. We can rescue nocodazole-induced stiffening with drugs that reduce actomyosin contractility and can partially rescue morphogenetic defects that affect stiffened embryos. We support these conclusions with a multi-scale analysis of cytoskeletal dynamics, tissue-scale traction and measurements of tissue stiffness to separate the role of microtubules from RhoGEF activation. These findings suggest a re-evaluation of the effects of nocodazole and increased focus on the role of Rho family GTPases as regulators of the mechanical properties of cells and their mechanical interactions with surrounding tissues.

Indexed as

ActomyosinAnimalsEmbryo, NonmammalianGuanine Nucleotide Exchange FactorsMicrotubulesRho Guanine Nucleotide Exchange FactorsXenopus laevisActomyosinGuanine Nucleotide Exchange FactorsRho Guanine Nucleotide Exchange Factors

Identifiers

PMID20630946
PMCPMC2910388
OpenAlexW2161384527

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.