Evidence map›Paper›PMID 34157170›Full record

ArticleGlia2021

Mek/ERK1/2-MAPK and PI3K/Akt/mTOR signaling plays both independent and cooperative roles in Schwann cell differentiation, myelination and dysmyelination.

Akihiro Ishii, Miki Furusho, Rashmi Bansal

Open access · greenAbstract read
In one paragraph

Article in Glia, 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
5.4field-weighted citation impact, top 3% 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

32 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
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  11. The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
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  18. Homosalate and ERK Knockdown in the Modulation ofCurrent issues in molecular biology · 2024
    Article
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  20. Review
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

3 authors at 1 institution in 1 country.

Akihiro IshiiDepartment of Neuroscience, University of Connecticut School of Medicine, Farmington, Connecticut, USA.
Miki FurushoDepartment of Neuroscience, University of Connecticut School of Medicine, Farmington, Connecticut, USA.
Rashmi BansalDepartment of Neuroscience, University of Connecticut School of Medicine, Farmington, Connecticut, USA.ORCID 0000-0002-9122-4899
University of Connecticut · US

Funding

Fibroblast Growth Factor Receptors in Myelin Function and DiseaseR01NS038878 · NINDS · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI BANSAL, RASHMI · 1999 to 2012
$3.9M
Role of FGF-Signaling in MyelinogenesisR37NS038878 · NINDS · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI BANSAL, RASHMI · 2013 to 2019
$2.9M
NINDS NIH HHS R01 NS038878NINDS NIH HHS R37 NS038878
6 · The paper itself

Abstract

Multiple signals are involved in the regulation of developmental myelination by Schwann cells and in the maintenance of a normal myelin homeostasis throughout adult life, preserving the integrity of the axons in the PNS. Recent studies suggest that Mek/ERK1/2-MAPK and PI3K/Akt/mTOR intracellular signaling pathways play important, often overlapping roles in the regulation of myelination in the PNS. In addition, hyperactivation of these signaling pathways in Schwann cells leads to a late onset of various pathological changes in the sciatic nerves. However, it remains poorly understood whether these pathways function independently or sequentially or converge using a common mechanism to facilitate Schwann cell differentiation and myelin growth during development and in causing pathological changes in the adult animals. To address these questions, we analyzed multiple genetically modified mice using simultaneous loss- and constitutive gain-of-function approaches. We found that during development, the Mek/ERK1/2-MAPK pathway plays a primary role in Schwann cell differentiation, distinct from mTOR. However, during active myelination, ERK1/2 is dependent on mTOR signaling to drive the growth of the myelin sheath and regulate its thickness. Finally, our data suggest that peripheral nerve pathology during adulthood caused by hyperactivation of Mek/ERK1/2-MAPK or PI3K is likely to be independent or dependent on mTOR-signaling in different contexts. Thus, this study highlights the complexities in the roles played by two major intracellular signaling pathways in Schwann cells that affect their differentiation, myelination, and later PNS pathology and predicts that potential therapeutic modulation of these pathways in PNS neuropathies could be a complex process.

Indexed as

MAP Kinase Signaling SystemPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktSchwann CellsTOR Serine-Threonine KinasesAnimalsCell DifferentiationMiceMyelin SheathSciatic NervemTOR protein, mousePhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktTOR Serine-Threonine KinasesdifferentiationmyelinmyelinationSchwann cells

Identifiers

PMID34157170
PMCPMC8373720
OpenAlexW3174862747

What OpenQuestion holds

Textmetadata
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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.