Evidence map›Paper›PMID 22432027›Full record

ArticlePloS one2012

Distinct regulatory functions of calpain 1 and 2 during neural stem cell self-renewal and differentiation.

Daniela M Santos, Joana M Xavier, Ana L Morgado, Susana Solá, Cecília M P Rodrigues

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. 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
3.4field-weighted citation impact, top 7% 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, 57 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Calpains as Potential Therapeutic Targets for Myocardial Hypertrophy.International journal of molecular sciences · 2022
    Review
  8. Article
  9. Role of Calpain-1 in Neurogenesis.Frontiers in molecular biosciences · 2021
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Effects of nuclear factor I phosphorylation on calpastatin (The Journal of biological chemistry · 2019
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  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.

Daniela M SantosResearch Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, University of Lisbon, Lisbon, Portugal.
Joana M Xavier
Ana L Morgado
Susana Solá
Cecília M P Rodrigues
University of Lisbon · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Calpains are calcium regulated cysteine proteases that have been described in a wide range of cellular processes, including apoptosis, migration and cell cycle regulation. In addition, calpains have been implicated in differentiation, but their impact on neural differentiation requires further investigation. Here, we addressed the role of calpain 1 and calpain 2 in neural stem cell (NSC) self-renewal and differentiation. We found that calpain inhibition using either the chemical inhibitor calpeptin or the endogenous calpain inhibitor calpastatin favored differentiation of NSCs. This effect was associated with significant changes in cell cycle-related proteins and may be regulated by calcium. Interestingly, calpain 1 and calpain 2 were found to play distinct roles in NSC fate decision. Calpain 1 expression levels were higher in self-renewing NSC and decreased with differentiation, while calpain 2 increased throughout differentiation. In addition, calpain 1 silencing resulted in increased levels of both neuronal and glial markers, β-III Tubulin and glial fibrillary acidic protein (GFAP). Calpain 2 silencing elicited decreased levels of GFAP. These results support a role for calpain 1 in repressing differentiation, thus maintaining a proliferative NSC pool, and suggest that calpain 2 is involved in glial differentiation.

Indexed as

Cell DifferentiationAnimalsAstrocytesBiomarkersCalciumCalcium-Binding ProteinsCalpainCell CountCell Cycle ProteinsCell DeathCell ProliferationDipeptidesGene SilencingIntermediate Filament ProteinsMiceNerve Tissue ProteinsBiomarkersCalciumCalcium-Binding ProteinsCalpaincalpastatincalpeptinCapn1 protein, mouseCapn2 protein, mouseCell Cycle ProteinsDipeptidesIntermediate Filament ProteinsNerve Tissue ProteinsNes protein, mouseNestinTubulin

Identifiers

PMID22432027
PMCPMC3303840
OpenAlexW2095915414

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.