Evidence map›Paper›PMID 22411830›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

A sulfated carbohydrate epitope inhibits axon regeneration after injury.

Joshua M Brown, Jiang Xia, BinQuan Zhuang, Kin-Sang Cho, Claude J Rogers, Cristal I Gama, Manish Rawat, Sarah E Tully, Noriko Uetani, Daniel E Mason and 5 more

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed
6.3field-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

90 citing papers in PubMed, 152 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Single-cell sequencing uncovers sensory neuron-mediated CGRP signaling as a driver of sarcoma progression.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Chondroitin 4-Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  20. Review

30 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

15 authors at 7 institutions in 3 countries.

Joshua M BrownDivision of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA.
Jiang Xia
BinQuan Zhuang
Kin-Sang Cho
Claude J Rogers
Cristal I Gama
Manish Rawat
Sarah E Tully
Noriko Uetani
Daniel E Mason
Michel L Tremblay
Eric C Peters
Osami Habuchi
Dong F Chen
Linda C Hsieh-Wilson
California Institute of Technology · USGenomics Institute of the Novartis Research Foundation · USHoward Hughes Medical Institute · USMcGill University · CAAichi University of Education · JPMassachusetts Eye and Ear Infirmary · USSmith-Kettlewell Eye Research Institute · US

Funding

PREDOCTORAL TRAINING IN BIOLOGY AND CHEMISTRYT32GM007616 · NIGMS · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI STERNBERG, PAUL WARREN · 1985 to 2019
$22.9M
A chemical approach to elucidating the structure-function relationships of chondronitin sulfate glycosaminoglycansR01GM093627 · NIGMS · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI HSIEH-WILSON, LINDA C · 2010 to 2018
$3.6M
Howard Hughes Medical InstituteNIGMS NIH HHS 5T32 GM07616-30S1NIGMS NIH HHS R01 GM093627NIGMS NIH HHS R01 GM093627-03NIGMS NIH HHS T32 GM007616
6 · The paper itself

Abstract

Chondroitin sulfate proteoglycans (CSPGs) represent a major barrier to regenerating axons in the central nervous system (CNS), but the structural diversity of their polysaccharides has hampered efforts to dissect the structure-activity relationships underlying their physiological activity. By taking advantage of our ability to chemically synthesize specific oligosaccharides, we demonstrate that a sugar epitope on CSPGs, chondroitin sulfate-E (CS-E), potently inhibits axon growth. Removal of the CS-E motif significantly attenuates the inhibitory activity of CSPGs on axon growth. Furthermore, CS-E functions as a protein recognition element to engage receptors including the transmembrane protein tyrosine phosphatase PTPσ, thereby triggering downstream pathways that inhibit axon growth. Finally, masking the CS-E motif using a CS-E-specific antibody reversed the inhibitory activity of CSPGs and stimulated axon regeneration in vivo. These results demonstrate that a specific sugar epitope within chondroitin sulfate polysaccharides can direct important physiological processes and provide new therapeutic strategies to regenerate axons after CNS injury.

Indexed as

AnimalsAntibodies, BlockingAntibodies, MonoclonalAntibodies, NeutralizingAxonsCarbohydrate ConformationChickensChondroitin Sulfate ProteoglycansChondroitin SulfatesEpitopesGanglia, SpinalGrowth ConesMiceNerve RegenerationNeuritesReceptor-Like Protein Tyrosine Phosphatases, Class 2Antibodies, BlockingAntibodies, MonoclonalAntibodies, NeutralizingChondroitin Sulfate ProteoglycansChondroitin SulfatesEpitopesReceptor-Like Protein Tyrosine Phosphatases, Class 2

Identifiers

PMID22411830
PMCPMC3323996
OpenAlexW2086360927

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.