Evidence map›Paper›PMID 22325267›Full record

ArticleBiophysical journal2012

Strength in the periphery: growth cone biomechanics and substrate rigidity response in peripheral and central nervous system neurons.

Daniel Koch, William J Rosoff, Jiji Jiang, Herbert M Geller, Jeffrey S Urbach

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 136 papers.

0numbers the graph read from it
0cells of the map it votes in
136citing papers in PubMed
9.7field-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

136 citing papers in PubMed, 275 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. 3D Printing for Neural Repair: Bridging the Gap in Regenerative Medicine.Advanced materials (Deerfield Beach, Fla.) · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Field Guide to Traction Force Microscopy.Cellular and molecular bioengineering · 2024
    Review
  15. Article
  16. Article
  17. Article
  18. Tensed axons are on fire.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  19. Article
  20. Review

76 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

5 authors at 2 institutions in 1 country.

Daniel KochDepartment of Physics, Georgetown University, Washington, DC, USA.
William J Rosoff
Jiji Jiang
Herbert M Geller
Jeffrey S Urbach
Georgetown University · USNational Institutes of Health · US

Funding

Signaling by Chondroitin Sulfate ProteoglycansZIAHL006021 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI GELLER, HERBERT M. · 2009 to 2022
$12.3M
Mechanisms of axonal pathfinding in three dimensional matricesR01NS064250 · NINDS · GEORGETOWN UNIVERSITY · PI URBACH, JEFFREY S. · 2009 to 2013
$1.6M
Intramural NIH HHSNINDS NIH HHS 1R01NS064250-01NINDS NIH HHS R01 NS064250
6 · The paper itself

Abstract

There is now considerable evidence of the importance of mechanical cues in neuronal development and regeneration. Motivated by the difference in the mechanical properties of the tissue environment between the peripheral (PNS) and central (CNS) nervous systems, we compare substrate-stiffness-dependent outgrowth and traction forces from PNS (dorsal root ganglion (DRG)) and CNS (hippocampal) neurons. We show that neurites from DRG neurons display maximal outgrowth on substrates with a Young's modulus of ∼1000 Pa, whereas hippocampal neurite outgrowth is independent of substrate stiffness. Using traction force microscopy, we also find a substantial difference in growth cone traction force generation, with DRG growth cones exerting severalfold larger forces compared with hippocampal growth cones. The traction forces generated by DRG and hippocampal growth cones both increase with increasing stiffness, and DRG growth cones growing on substrates with a Young's modulus of 1000 Pa strengthen considerably after 18-30 h. Finally, we find that retrograde actin flow is almost three times faster in hippocampal growth cones than in DRG. Moreover, the density of paxillin puncta is significantly lower in hippocampal growth cones, suggesting that stronger substrate coupling of the DRG cytoskeleton is responsible for the remarkable difference in traction force generation. These findings reveal a differential adaptation of cytoskeletal dynamics to substrate stiffness in growth cones of different neuronal types, and highlight the potential importance of the mechanical properties of the cellular environment for neuronal navigation during embryonic development and nerve regeneration.

Indexed as

Mechanical PhenomenaAnimalsBiomechanical PhenomenaCytoskeletonGanglia, SpinalGrowth ConesHippocampusRatsTime Factors

Identifiers

PMID22325267
PMCPMC3274825
OpenAlexW2012100020

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.