Evidence map›Paper›PMID 32267230›Full record

ArticleeLife2020

The axonal actin-spectrin lattice acts as a tension buffering shock absorber.

Sushil Dubey, Nishita Bhembre, Shivani Bodas, Sukh Veer, Aurnab Ghose, Andrew Callan-Jones, Pramod Pullarkat

Open access · goldAbstract read
In one paragraph

Article in eLife, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

48 citing papers in PubMed, 73 citations in OpenAlex.

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  20. Cellular mechanisms of traumatic brain injury.npj biological physics and mechanics · 2025
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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 3 institutions in 2 countries.

Sushil DubeyRaman Research Institute, Bangalore, India.ORCID 0000-0002-8964-9062
Nishita BhembreRaman Research Institute, Bangalore, India.
Shivani BodasIndian Institute of Science Education and Research, Pune, India.
Sukh VeerRaman Research Institute, Bangalore, India.
Aurnab GhoseIndian Institute of Science Education and Research, Pune, India.ORCID 0000-0002-2053-3918
Andrew Callan-JonesLaboratory of Complex Materials Systems, Paris Diderot University, Paris, France.
Pramod PullarkatRaman Research Institute, Bangalore, India.ORCID 0000-0003-2716-7575
Raman Research Institute · INIndian Institute of Science Education and Research Pune · INDélégation Paris 7 · FR

Funding

Department of Biotechnology , Ministry of Science and Technology BT/PR13244/GBD/27/245/2009Science and Engineering Research Board EMR/2016/003730
6 · The paper itself

Abstract

Axons span extreme distances and are subject to significant stretch deformations during limb movements or sudden head movements, especially during impacts. Yet, axon biomechanics, and its relation to the ultrastructure that allows axons to withstand mechanical stress, is poorly understood. Using a custom developed force apparatus, we demonstrate that chick dorsal root ganglion axons exhibit a tension buffering or strain-softening response, where its steady state elastic modulus decreases with increasing strain. We then explore the contributions from the various cytoskeletal components of the axon to show that the recently discovered membrane-associated actin-spectrin scaffold plays a prominent mechanical role. Finally, using a theoretical model, we argue that the actin-spectrin skeleton acts as an axonal tension buffer by reversibly unfolding repeat domains of the spectrin tetramers to release excess mechanical stress. Our results revise the current viewpoint that microtubules and their associated proteins are the only significant load-bearing elements in axons.

Indexed as

ActinsAnimalsAxonsBiomechanical PhenomenaCells, CulturedChickensMicrotubulesProtein FoldingSpectrinStress, MechanicalActinsSpectrinaxonal cytoskeletonaxon mechanicschickenphysics of living systemsspectrin skeleton

Identifiers

PMID32267230
PMCPMC7190353
OpenAlexW3015165613

What OpenQuestion holds

Textmetadata
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.