Evidence map›Paper›PMID 24474754›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

TRPV4-mediated mechanotransduction regulates the metabolic response of chondrocytes to dynamic loading.

Christopher J O'Conor, Holly A Leddy, Halei C Benefield, Wolfgang B Liedtke, Farshid Guilak

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 295 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
295citing papers in PubMed, 2 pooled it
34.9field-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

295 citing papers in PubMed, 2 syntheses or guidelines pooled it, 472 citations in OpenAlex.

  1. Pooled it
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  8. The Influence of the Chondrocyte Microenvironment on Multiscale Articular Cartilage Mechanics: A Computational Study.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2026
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235 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

5 authors at 4 institutions in 1 country.

Christopher J O'ConorDepartment of Orthopaedic Surgery, Duke University Medical Center, Durham, NC 27710.
Holly A Leddy
Halei C Benefield
Wolfgang B Liedtke
Farshid Guilak
North Carolina State University · USDuke Medical Center · USDuke University · USDuke University Hospital · US

Funding

Thermally-Triggered Intra-articular Drug Delivery for OAP01AR050245 · NIAMS · DUKE UNIVERSITY · PI KRAUS, VIRGINIA · 2003 to 2012
$11.5M
VISCOELASTIC PROPERTIES OF NORMAL AND OA CHONDRONSR01AG015768 · NIA · WASHINGTON UNIVERSITY · PI GUILAK, FARSHID · 1998 to 2022
$7.7M
OBESITY, BIOMECHANICS, AND INFLAMMATION IN OSTEOARTHRITISR01AG046927 · NIA · WASHINGTON UNIVERSITY · PI GUILAK, FARSHID · 2013 to 2023
$3.2M
Mechanical and Osmotic Signaling in ChondrocytesR01AR048182 · NIAMS · DUKE UNIVERSITY · PI GUILAK, FARSHID · 2003 to 2013
$3.0M
Intrinsic Repair of the Knee MeniscusR01AR048852 · NIAMS · DUKE UNIVERSITY · PI GUILAK, FARSHID · 2007 to 2011
$1.4M
Osmotic Signaling in Chondrocyte Aging and OsteoarthritisF30AG040868 · NIA · UNIV OF NORTH CAROLINA CHAPEL HILL · PI O'CONOR, CHRISTOPHER JOSEPH · 2011 to 2015
$163k
NIAMS NIH HHS AR48182NIAMS NIH HHS AR48852NIAMS NIH HHS AR50245NIAMS NIH HHS P01 AR050245NIAMS NIH HHS R01 AR048182NIAMS NIH HHS R01 AR048852NIA NIH HHS AG15768NIA NIH HHS AG40868NIA NIH HHS AG46927NIA NIH HHS F30 AG040868NIA NIH HHS R01 AG015768NIA NIH HHS R01 AG046927
6 · The paper itself

Abstract

Mechanical loading of joints plays a critical role in maintaining the health and function of articular cartilage. The mechanism(s) of chondrocyte mechanotransduction are not fully understood, but could provide important insights into new physical or pharmacologic therapies for joint diseases. Transient receptor potential vanilloid 4 (TRPV4), a Ca(2+)-permeable osmomechano-TRP channel, is highly expressed in articular chondrocytes, and loss of TRPV4 function is associated with joint arthropathy and osteoarthritis. The goal of this study was to examine the hypothesis that TRPV4 transduces dynamic compressive loading in articular chondrocytes. We first confirmed the presence of physically induced, TRPV4-dependent intracellular Ca(2+) signaling in agarose-embedded chondrocytes, and then used this model system to study the role of TRPV4 in regulating the response of chondrocytes to dynamic compression. Inhibition of TRPV4 during dynamic loading prevented acute, mechanically mediated regulation of proanabolic and anticatabolic genes, and furthermore, blocked the loading-induced enhancement of matrix accumulation and mechanical properties. Furthermore, chemical activation of TRPV4 by the agonist GSK1016790A in the absence of mechanical loading similarly enhanced anabolic and suppressed catabolic gene expression, and potently increased matrix biosynthesis and construct mechanical properties. These findings support the hypothesis that TRPV4-mediated Ca(2+) signaling plays a central role in the transduction of mechanical signals to support cartilage extracellular matrix maintenance and joint health. Moreover, these insights raise the possibility of therapeutically targeting TRPV4-mediated mechanotransduction for the treatment of diseases such as osteoarthritis, as well as to enhance matrix formation and functional properties of tissue-engineered cartilage as an alternative to bioreactor-based mechanical stimulation.

Indexed as

AnimalsCells, CulturedChondrocytesGene Expression RegulationMechanotransduction, CellularSepharoseSwineTRPV Cation ChannelsSepharoseTRPV Cation Channelscalcium signalingion channelmechanobiologyTGF-betatissue engineering

Identifiers

PMID24474754
PMCPMC3910592
OpenAlexW2010240830

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.