Evidence map›Paper›PMID 22764250›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2012

Drp2 and periaxin form Cajal bands with dystroglycan but have distinct roles in Schwann cell growth.

Diane L Sherman, Lai Man N Wu, Matthew Grove, C Stewart Gillespie, Peter J Brophy

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

39 citing papers in PubMed, 60 citations in OpenAlex.

  1. Charcot-Marie-Tooth disease and related neuropathies.Nature reviews. Disease primers · 2026
    Review
  2. Myelin development in the peripheral nervous system ofFrontiers in cell and developmental biology · 2026
    Article
  3. Article
  4. Article
  5. Schwann Cell Development and Myelination.Cold Spring Harbor perspectives in biology · 2024
    Review
  6. Article
  7. Article
  8. Myelin Biology.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2021
    Review
  9. Article
  10. Myelination of peripheral nerves is controlled by PI4KB through regulation of Schwann cell Golgi function.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Novel hemizygous nonsense mutation inNeurology. Genetics · 2018
    Article
  18. Sustained MAPK/ERK Activation in Adult Schwann Cells Impairs Nerve Repair.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    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

5 authors at 1 institution in 1 country.

Diane L ShermanCentre for Neuroregeneration, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom.
Lai Man N Wu
Matthew Grove
C Stewart Gillespie
Peter J Brophy
University of Edinburgh · GB

Funding

Wellcome Trust 082424
6 · The paper itself

Abstract

Cajal bands are cytoplasmic channels flanked by appositions where the abaxonal surface of Schwann cell myelin apposes and adheres to the overlying plasma membrane. These appositions contain a dystroglycan complex that includes periaxin and dystrophin-related protein 2 (Drp2). Loss of periaxin disrupts appositions and Cajal bands in Schwann cells and causes a severe demyelinating neuropathy in mouse and human. Here, we investigated the role of mouse Drp2 in apposition assembly and Cajal band function and compared it with periaxin. We show that periaxin and Drp2 are not only both required to form appositions, but they must also interact. Periaxin-Drp2 interaction is also required for Drp2 phosphorylation, but phosphorylation is not required for the assembly of appositions. Drp2 loss causes corresponding increases in Dystrophin family members, utrophin and dystrophin Dp116, although dystroglycan remains unchanged. We also show that all dystroglycan complexes in Schwann cells use the uncleaved form of β-dystroglycan. Drp2-null Schwann cells have disrupted appositions and Cajal bands, and they undergo focal hypermyelination and concomitant demyelination. Nevertheless, they do not have the short internodal lengths and associated reduced nerve conduction velocity seen in the absence of periaxin, showing that periaxin regulates Schwann cell elongation independent of its role in the dystroglycan complex. We conclude that the primary role of the dystroglycan complex in appositions is to stabilize and limit the radial growth of myelin.

Indexed as

AnimalsDystroglycansIntercellular Signaling Peptides and ProteinsMembrane ProteinsMiceMice, Inbred C57BLMice, Inbred DBAMice, TransgenicNerve CrushNerve Tissue ProteinsSchwann CellsSciatic Neuropathycollapsin response mediator protein-2DystroglycansIntercellular Signaling Peptides and ProteinsMembrane ProteinsNerve Tissue Proteinsperiaxin

Identifiers

PMID22764250
PMCPMC3400949
OpenAlexW2122774886

What OpenQuestion holds

Textmetadata
LicenceTDM
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.