Evidence map›Paper›PMID 22010221›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2011

Phenotypically aberrant astrocytes that promote motoneuron damage in a model of inherited amyotrophic lateral sclerosis.

Pablo Díaz-Amarilla, Silvia Olivera-Bravo, Emiliano Trias, Andrea Cragnolini, Laura Martínez-Palma, Patricia Cassina, Joseph Beckman, Luis Barbeito

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 108 papers.

0numbers the graph read from it
0cells of the map it votes in
108citing papers in PubMed
8.8field-weighted citation impact, top 2% 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

108 citing papers in PubMed, 183 citations in OpenAlex.

  1. Review
  2. Article
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  4. Article
  5. Review
  6. Current Evidence on the Involvement of RAGE-Diaph1 Signaling in the Pathology and Treatment of Neurodegenerative Diseases-An Overview.Pathophysiology : the official journal of the International Society for Pathophysiology · 2025
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Exploring the Role of Metabolic Hormones in Amyotrophic Lateral Sclerosis.International journal of molecular sciences · 2024
    Article
  13. Review
  14. Article
  15. Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. Review

48 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

8 authors at 4 institutions in 2 countries.

Pablo Díaz-AmarillaInstituto de Investigaciones Biológicas Clemente Estable, Montevideo 11600, Uruguay.
Silvia Olivera-Bravo
Emiliano Trias
Andrea Cragnolini
Laura Martínez-Palma
Patricia Cassina
Joseph Beckman
Luis Barbeito
Instituto de Investigaciones Biológicas Clemente Estable · UYInstitut Pasteur de Montevideo · UYUniversidad de la República · UYOregon State University · US

Funding

Reducing Susceptibility to Environmental Stress Throughout the Life SpanP30ES000210 · NIEHS · OREGON STATE UNIVERSITY · PI BECKMAN, JOSEPH S · 1985 to 2015
$21.4M
Overall Program/FreiP01AT002034 · NCCIH · OREGON STATE UNIVERSITY · PI FREI, BALZ B · 2003 to 2012
$11.7M
Superoxide Dismutase, Peroxynitrite and ALSR01NS058628 · NINDS · OREGON STATE UNIVERSITY · PI BECKMAN, JOSEPH S · 2008 to 2012
$1.6M
NCCIH NIH HHS P01 AT002034NCCIH NIH HHS P01AT002034NIEHS NIH HHS P30 ES000210NIEHS NIH HHS P30ES000210NINDS NIH HHS R01 NS058628NINDS NIH HHS R01NS058628A
6 · The paper itself

Abstract

Motoneuron loss and reactive astrocytosis are pathological hallmarks of amyotrophic lateral sclerosis (ALS), a paralytic neurodegenerative disease that can be triggered by mutations in Cu-Zn superoxide dismutase (SOD1). Dysfunctional astrocytes contribute to ALS pathogenesis, inducing motoneuron damage and accelerating disease progression. However, it is unknown whether ALS progression is associated with the appearance of a specific astrocytic phenotype with neurotoxic potential. Here, we report the isolation of astrocytes with aberrant phenotype (referred as "AbA cells") from primary spinal cord cultures of symptomatic rats expressing the SOD1(G93A) mutation. Isolation was based on AbA cells' marked proliferative capacity and lack of replicative senescence, which allowed oligoclonal cell expansion for 1 y. AbA cells displayed astrocytic markers including glial fibrillary acidic protein, S100β protein, glutamine synthase, and connexin 43 but lacked glutamate transporter 1 and the glial progenitor marker NG2 glycoprotein. Notably, AbA cells secreted soluble factors that induced motoneuron death with a 10-fold higher potency than neonatal SOD1(G93A) astrocytes. AbA-like aberrant astrocytes expressing S100β and connexin 43 but lacking NG2 were identified in nearby motoneurons, and their number increased sharply after disease onset. Thus, AbA cells appear to be an as-yet unknown astrocyte population arising during ALS progression with unprecedented proliferative and neurotoxic capacity and may be potential cellular targets for slowing ALS progression.

Indexed as

Disease Models, AnimalAmyotrophic Lateral SclerosisAnimalsAstrocytesCell ProliferationHumansMotor NeuronsMutationPhenotypeRatsSuperoxide DismutaseSuperoxide Dismutase

Identifiers

PMID22010221
PMCPMC3207668
OpenAlexW2085656073

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.