Evidence map›Paper›PMID 24885550›Full record

ArticleNeural development2014

Genome-wide expression profile of the response to spinal cord injury in Xenopus laevis reveals extensive differences between regenerative and non-regenerative stages.

Dasfne Lee-Liu, Mauricio Moreno, Leonardo I Almonacid, Víctor S Tapia, Rosana Muñoz, Javier von Marées, Marcia Gaete, Francisco Melo, Juan Larraín

Open access · goldAbstract read
In one paragraph

Article in Neural development, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

41 citing papers in PubMed, 80 citations in OpenAlex.

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  5. BRCA1 and ELK-1 regulate neural progenitor cell fate in the optic tectum in response to visual experience inProceedings of the National Academy of Sciences of the United States of America · 2024
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  6. Article
  7. IsPeerJ · 2023
    Article
  8. Review
  9. Article
  10. Mitochondrial function in spinal cord injury and regeneration.Cellular and molecular life sciences : CMLS · 2022
    Review
  11. Article
  12. Article
  13. Article
  14. Unraveling Axon Guidance during Axotomy and Regeneration.International journal of molecular sciences · 2021
    Review
  15. Animal regeneration in the era of transcriptomics.Cellular and molecular life sciences : CMLS · 2021
    Review
  16. iScience · 2021
    Article
  17. Article
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  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

9 authors at 1 institution in 1 country.

Dasfne Lee-Liu
Mauricio Moreno
Leonardo I Almonacid
Víctor S Tapia
Rosana Muñoz
Javier von Marées
Marcia Gaete
Francisco Melo
Juan LarraínCenter for Aging and Regeneration, Millennium Nucleus for Regenerative Biology, Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Alameda 340, Santiago, Chile. jlarrain@bio.puc.cl.
Pontificia Universidad Católica de Chile · CL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundXenopus laevis has regenerative and non-regenerative stages. As a tadpole, it is fully capable of functional recovery after a spinal cord injury, while its juvenile form (froglet) loses this capability during metamorphosis. We envision that comparative studies between regenerative and non-regenerative stages in Xenopus could aid in understanding why spinal cord regeneration fails in human beings.

resultsTo identify the mechanisms that allow the tadpole to regenerate and inhibit regeneration in the froglet, we obtained a transcriptome-wide profile of the response to spinal cord injury in Xenopus regenerative and non-regenerative stages. We found extensive transcriptome changes in regenerative tadpoles at 1 day after injury, while this was only observed by 6 days after injury in non-regenerative froglets. In addition, when comparing both stages, we found that they deployed a very different repertoire of transcripts, with more than 80% of them regulated in only one stage, including previously unannotated transcripts. This was supported by gene ontology enrichment analysis and validated by RT-qPCR, which showed that transcripts involved in metabolism, response to stress, cell cycle, development, immune response and inflammation, neurogenesis, and axonal regeneration were regulated differentially between regenerative and non-regenerative stages.

conclusionsWe identified differences in the timing of the transcriptional response and in the inventory of regulated transcripts and biological processes activated in response to spinal cord injury when comparing regenerative and non-regenerative stages. These genes and biological processes provide an entry point to understand why regeneration fails in mammals. Furthermore, our results introduce Xenopus laevis as a genetic model organism to study spinal cord regeneration.

Indexed as

TranscriptomeAnimalsNeurogenesisSpinal Cord InjuriesSpinal Cord RegenerationXenopus laevis

Identifiers

PMID24885550
PMCPMC4046850
OpenAlexW2126740829

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.