Evidence map›Paper›PMID 19933746›Full record

ArticleAnnals of the rheumatic diseases2010

Acid-sensing ion channel 3 expressed in type B synoviocytes and chondrocytes modulates hyaluronan expression and release.

S J Kolker, R Y Walder, Y Usachev, J Hillman, D L Boyle, G S Firestein, K A Sluka

Open access · greenAbstract read
In one paragraph

Article in Annals of the rheumatic diseases, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

28 citing papers in PubMed, 51 citations in OpenAlex.

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  16. The Roles of Acidosis in Osteoclast Biology.Frontiers in physiology · 2016
    Review
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  19. Acid-sensing ion channel 2 (asic 2) and trkb interrelationships within the intervertebral disc.International journal of clinical and experimental pathology · 2015
    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

7 authors at 2 institutions in 1 country.

S J KolkerGraduate Program in Physical Therapy and Rehabilitation Science, 1-242 MEB, University of Iowa, Iowa City, Iowa 52242, USA.
R Y Walder
Y Usachev
J Hillman
D L Boyle
G S Firestein
K A Sluka
University of Iowa · USUniversity of California, San Diego · US

Funding

Regulation of p38 and inflammation by MAPK kinasesR01AI070555 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI FIRESTEIN, GARY S · 2006 to 2016
$3.8M
Role of ASIC3 in the Etiology of FibromyalgiaR01AR053509 · NIAMS · UNIVERSITY OF IOWA · PI SLUKA, KATHLEEN A · 2006 to 2010
$3.2M
c-Jun N-terminal kinase and joint destruction in RAR01AR047825 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI FIRESTEIN, GARY S · 2002 to 2012
$2.7M
Innate immunity and the IKKi complex in Rheumatoid Arthritis (RA) synoviumR01AI067752 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI FIRESTEIN, GARY S · 2007 to 2011
$1.7M
NIAID NIH HHS R01 AI067752NIAID NIH HHS R01 AI070555NIAMS NIH HHS AR053509-S1NIAMS NIH HHS R01 AR047825NIAMS NIH HHS R01 AR053509
6 · The paper itself

Abstract

backgroundRheumatoid arthritis is an inflammatory disease marked by intra-articular decreases in pH, aberrant hyaluronan regulation and destruction of bone and cartilage. Acid-sensing ion channels (ASICs) are the primary acid sensors in the nervous system, particularly in sensory neurons and are important in nociception. ASIC3 was recently discovered in synoviocytes, non-neuronal joint cells critical to the inflammatory process.

objectivesTo investigate the role of ASIC3 in joint tissue, specifically the relationship between ASIC3 and hyaluronan and the response to decreased pH.

methodsHistochemical methods were used to compare morphology, hyaluronan expression and ASIC3 expression in ASIC3+/+ and ASIC3-/- mouse knee joints. Isolated fibroblast-like synoviocytes (FLS) were used to examine hyaluronan release and intracellular calcium in response to decreases in pH.

resultsIn tissue sections from ASIC3+/+ mice, ASIC3 localised to articular cartilage, growth plate, meniscus and type B synoviocytes. In cultured FLS, ASIC3 mRNA and protein was also expressed. In FLS cultures, pH 5.5 increased hyaluronan release in ASIC3+/+ FLS, but not ASIC3-/- FLS. In FLS from ASIC3+/+ mice, approximately 50% of cells (25/53) increased intracellular calcium while only 24% (14/59) showed an increase in ASIC3-/- FLS. Of the cells that responded to pH 5.5, there was significantly less intracellular calcium increases in ASIC3-/- FLS compared to ASIC3+/+ FLS.

conclusionASIC3 may serve as a pH sensor in synoviocytes and be important for modulation of expression of hyaluronan within joint tissue.

Indexed as

Acid Sensing Ion ChannelsAnimalsCalciumCartilage, ArticularCells, CulturedChondrocytesFibroblastsHyaluronic AcidHydrogen-Ion ConcentrationMaleMiceMice, Inbred C57BLReverse Transcriptase Polymerase Chain ReactionSodium ChannelsSynovial MembraneAcid Sensing Ion ChannelsASIC3 protein, mouseCalciumHyaluronic AcidSodium Channels

Identifiers

PMID19933746
PMCPMC3476728
OpenAlexW2029449142

What OpenQuestion holds

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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.