Evidence map›Paper›PMID 24068802›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2013

Short hairpin RNA against PTEN enhances regenerative growth of corticospinal tract axons after spinal cord injury.

Katherine Zukor, Stephane Belin, Chen Wang, Nadia Keelan, Xuhua Wang, Zhigang He

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 174 papers.

0numbers the graph read from it
0cells of the map it votes in
174citing papers in PubMed
9.1field-weighted citation impact, top 1% 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

174 citing papers in PubMed, 285 citations in OpenAlex.

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  8. Hyperactive delta isoform of PI3 kinase enables long-distance regeneration of adult rat corticospinal tract.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Article
  9. Nonresolving Neuroinflammation Regulates Axon Regeneration in Chronic Spinal Cord Injury.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  10. Review
  11. Molecular signaling predicts corticospinal axon growth state and muscle response plasticity induced by neuromodulation.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  12. Lipin1 depletion coordinates neuronal signaling pathways to promote motor and sensory axon regeneration after spinal cord injury.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
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114 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

6 authors at 2 institutions in 2 countries.

Katherine ZukorF. M. Kirby Program in Neuroscience, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts 02115, and Smurfit Institute of Genetics, Trinity College, Dublin 2, Ireland.
Stephane Belin
Chen Wang
Nadia Keelan
Xuhua Wang
Zhigang He
Boston Children's Hospital · USHarvard University · US

Funding

SYNAPTIC MECHANISMS IN HIPPOCAMPAL EPILEPTOGENESISP30HD018655 · NICHD · CHILDREN'S HOSPITAL BOSTON · PI POMEROY, SCOTT LOREN · 1985 to 2015
$26.2M
NICHD NIH HHS P30 HD018655
6 · The paper itself

Abstract

Developing approaches to promote the regeneration of descending supraspinal axons represents an ideal strategy for rebuilding neuronal circuits to improve functional recovery after spinal cord injury (SCI). Our previous studies demonstrated that genetic deletion of phosphatase and tensin homolog (PTEN) in mouse corticospinal neurons reactivates their regenerative capacity, resulting in significant regeneration of corticospinal tract (CST) axons after SCI. However, it is unknown whether nongenetic methods of suppressing PTEN have similar effects and how regenerating axons interact with the extrinsic environment. Herein, we show that suppressing PTEN expression with short-hairpin RNA (shRNA) promotes the regeneration of injured CST axons, and these axons form anatomical synapses in appropriate areas of the cord caudal to the lesion. Importantly, this model of increased CST regrowth enables the analysis of extrinsic regulators of CST regeneration in vivo. We find that regenerating axons avoid dense clusters of fibroblasts and macrophages in the lesion, suggesting that these cell types might be key inhibitors of axon regeneration. Furthermore, most regenerating axons cross the lesion in association with astrocytes, indicating that these cells might be important for providing a permissive bridge for axon regeneration. Lineage analysis reveals that these bridge-forming astrocytes are not derived from ependymal stem cells within the spinal cord, suggesting that they are more likely derived from a subset of mature astrocytes. Overall, this study reveals insights into the critical extrinsic and intrinsic regulators of axon regeneration and establishes shRNA as a viable means to manipulate these regulators and translate findings into other mammalian models.

Indexed as

Nerve RegenerationAnimalsAstrocytesAxonsCell Growth ProcessesEpendymaFibroblastsHEK293 CellsHumansMacrophagesMiceMice, Inbred C57BLPTEN PhosphohydrolasePyramidal TractsRNA, Small InterferingSpinal Cord InjuriesPTEN PhosphohydrolasePten protein, mouseRNA, Small Interfering

Identifiers

PMID24068802
PMCPMC3782617
OpenAlexW2031861741

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.