Evidence map›Paper›PMID 22158513›Full record

ArticleNature neuroscience2011

TRPA1 channels regulate astrocyte resting calcium and inhibitory synapse efficacy through GAT-3.

Eiji Shigetomi, Xiaoping Tong, Kelvin Y Kwan, David P Corey, Baljit S Khakh

Open access · greenAbstract read
In one paragraph

Article in Nature neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 253 papers.

0numbers the graph read from it
0cells of the map it votes in
253citing papers in PubMed
13.2field-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

253 citing papers in PubMed, 468 citations in OpenAlex.

  1. Article
  2. Cocaine facilitates CaMolecular psychiatry · 2026
    Article
  3. Overactive EAAT1 ClActa neuropathologica communications · 2026
    Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. GABAThe European journal of neuroscience · 2025
    Article
  17. Article
  18. Review
  19. Article
  20. Metal Ion Signaling in Biomedicine.Chemical reviews · 2025
    Review

193 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 1 country.

Eiji ShigetomiDepartment of Physiology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA.
Xiaoping Tong
Kelvin Y Kwan
David P Corey
Baljit S Khakh
University of California, Los Angeles · USHarvard University · USHoward Hughes Medical Institute · US

Funding

MOLECULAR MECHANISMS OF AUDITORY TRANSDUCTIONR01DC000304 · NIDCD · MASSACHUSETTS GENERAL HOSPITAL · PI DAVID P COREY, Marcos Sotomayor · 1989 to 2026
$9.3M
Functions of astrocyte calcium signaling in the striatumR01NS060677 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KHAKH, BALJIT · 2008 to 2018
$4.3M
Tracking transmitter gated P2X cation channel activation in vitro and in vivo.R21NS063186 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KHAKH, BALJIT · 2008 to 2009
$382k
An approach to image calcium in small volumes of astrocytes in vivoR21NS071292 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KHAKH, BALJIT, SOFRONIEW, MICHAEL V · 2010 to 2011
$381k
NIDCD NIH HHS R01 DC000304NINDS NIH HHS NS060677NINDS NIH HHS NS063186NINDS NIH HHS NS071292NINDS NIH HHS R01 NS060677NINDS NIH HHS R21 NS063186NINDS NIH HHS R21 NS071292
6 · The paper itself

Abstract

Astrocytes contribute to the formation and function of synapses and are found throughout the brain, where they show intracellular store-mediated Ca(2+) signals. Here, using a membrane-tethered, genetically encoded calcium indicator (Lck-GCaMP3), we report the serendipitous discovery of a new type of Ca(2+) signal in rat hippocampal astrocyte-neuron cocultures. We found that Ca(2+) fluxes mediated by transient receptor potential A1 (TRPA1) channels gave rise to frequent and highly localized 'spotty' Ca(2+) microdomains near the membrane that contributed appreciably to resting Ca(2+) in astrocytes. Mechanistic evaluations in brain slices showed that decreases in astrocyte resting Ca(2+) concentrations mediated by TRPA1 channels decreased interneuron inhibitory synapse efficacy by reducing GABA transport by GAT-3, thus elevating extracellular GABA. Our data show how a transmembrane Ca(2+) source (TRPA1) targets a transporter (GAT-3) in astrocytes to regulate inhibitory synapses.

Indexed as

AnimalsAstrocytesCalciumCells, CulturedCoculture TechniquesGABA Plasma Membrane Transport Proteinsgamma-Aminobutyric AcidHippocampusNeuronsRatsSynapsesTRPA1 Cation ChannelTRPC Cation ChannelsCalciumGABA Plasma Membrane Transport Proteinsgamma-Aminobutyric AcidTRPA1 Cation ChannelTrpa1 protein, ratTRPC Cation Channels

Identifiers

PMID22158513
PMCPMC3282183
OpenAlexW2113679292

What OpenQuestion holds

Textmetadata
LicenceTDM
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.