Evidence map›Paper›PMID 34779399›Full record

ArticleeLife2021

Neural control of growth and size in the axolotl limb regenerate.

Kaylee M Wells, Kristina Kelley, Mary Baumel, Warren A Vieira, Catherine D McCusker

Abstract read
In one paragraph

Article in eLife, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
–field-weighted citation impact
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

32 citing papers in PubMed.

  1. Review
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  10. Static morphogen scaling enables proportional growth in a tissue growth model inspired by axolotl limb regeneration.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  11. Article
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  15. A Novel Method for Culturing Telencephalic Neurons in Axolotls.The Journal of comparative neurology · 2025
    Article
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  17. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Kaylee M WellsBiology Department, University of Massachusetts, Boston, Boston, United States.
Kristina KelleyBiology Department, University of Massachusetts, Boston, Boston, United States.
Mary BaumelBiology Department, University of Massachusetts, Boston, Boston, United States.ORCID 0000-0002-8551-4785
Warren A VieiraBiology Department, University of Massachusetts, Boston, Boston, United States.
Catherine D McCuskerBiology Department, University of Massachusetts, Boston, Boston, United States.ORCID 0000-0003-0127-433X

Funding

The function of chromatin remodeling in the patterning of the salamander limb regenerateR15HD092180 · NICHD · UNIVERSITY OF MASSACHUSETTS BOSTON · PI MCCUSKER, CATHERINE D · 2018 to 2025
$1.5M
NICHD NIH HHS R15 HD092180
6 · The paper itself

Abstract

The mechanisms that regulate growth and size of the regenerating limb in tetrapods such as the Mexican axolotl are unknown. Upon the completion of the developmental stages of regeneration, when the regenerative organ known as the blastema completes patterning and differentiation, the limb regenerate is proportionally small in size. It then undergoes a phase of regeneration that we have called the 'tiny-limb' stage, which is defined by rapid growth until the regenerate reaches the proportionally appropriate size. In the current study we have characterized this growth and have found that signaling from the limb nerves is required for its maintenance. Using the regenerative assay known as the accessory limb model (ALM), we have found that growth and size of the limb positively correlates with nerve abundance. We have additionally developed a new regenerative assay called the neural modified-ALM (NM-ALM), which decouples the source of the nerves from the regenerating host environment. Using the NM-ALM we discovered that non-neural extrinsic factors from differently sized host animals do not play a prominent role in determining the size of the regenerating limb. We have also discovered that the regulation of limb size is not autonomously regulated by the limb nerves. Together, these observations show that the limb nerves provide essential cues to regulate ontogenetic allometric growth and the final size of the regenerating limb.

Indexed as

RegenerationAmbystoma mexicanumAnimalsCell DifferentiationForelimbaxolotldevelopmental biologylimb regenerationneural controlproportionalityregenerative medicinesize regulationstem cells

Identifiers

PMID34779399
PMCPMC8716110

What OpenQuestion holds

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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.