Evidence map›Paper›PMID 25150065›Full record

ArticleAmerican journal of physiology. Lung cellular and molecular physiology2014

Role of MMP2 and MMP9 in TRPV4-induced lung injury.

Patricia C Villalta, Petra Rocic, Mary I Townsley

Abstract read
In one paragraph

Article in American journal of physiology. Lung cellular and molecular physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
6.3field-weighted citation impact, top 3% 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

50 citing papers in PubMed, 79 citations in OpenAlex.

  1. Review
  2. The CaInternational journal of molecular sciences · 2026
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  14. Article
  15. Mechanosensitive channels in lung disease.Frontiers in physiology · 2023
    Review
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  17. Review
  18. Review
  19. Article
  20. Role of the LRP1-pPyk2-MMP9 pathway in hyperoxia-induced lung injury in neonatal rats.Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2021
    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

3 authors at 2 institutions in 1 country.

Patricia C VillaltaDepartment of Physiology and Center for Lung Biology, University of South Alabama, Mobile, Alabama;
Petra RocicDepartment of Pharmacology, New York Medical College, Valhalla, New York.
Mary I TownsleyDepartment of Physiology and Center for Lung Biology, University of South Alabama, Mobile, Alabama; Department of Medicine, University of South Alabama, Mobile, Alabama; and mtownsley@southalabama.edu.
University of South Alabama · USNew York Medical College · US

Funding

T-type Calcium Channels and von Willebrand Factor ReleaseP01HL066299 · NHLBI · UNIVERSITY OF SOUTH ALABAMA · PI ALVAREZ, DIEGO F. · 2001 to 2022
$34.6M
Regulation of Coronary Collateral Growth in the Metabolic SyndromeR01HL093052 · NHLBI · UNIVERSITY OF SOUTH ALABAMA · PI ROCIC, PETRA · 2008 to 2018
$3.7M
NHLBI NIH HHS HL-066299NHLBI NIH HHS R01-HL-093052
6 · The paper itself

Abstract

Ca(2+) entry through transient receptor potential vanilloid 4 (TRPV4) results in swelling, blebbing, and detachment of the epithelium and capillary endothelium in the intact lung. Subsequently, increased permeability of the septal barrier and alveolar flooding ensue. In this study, we tested the hypothesis that TRPV4 activation provides a Ca(2+) source necessary for proteolytic disruption of cell-cell or cell-matrix adhesion by matrix metalloproteinases (MMPs) 2 and 9, thus increasing septal barrier permeability. In our study, C57BL/6 or TRPV4(-/-) mouse lungs were perfused with varying doses of the TRPV4 agonist GSK-1016790A (Sigma) and then prepared for Western blot. Lung injury, assessed by increases in lung wet-to-dry weight ratios and total protein levels in the bronchoalveolar lavage fluid, was increased in a dose-dependent fashion in TRPV4(+/+) but not TRPV4(-/-) lungs. In concert with lung injury, we detected increased active MMP2 and MMP9 isoforms, suggesting that TRPV4 can provide the Ca(2+) source necessary for increased MMP2/9 activation. Furthermore, tissue inhibitor of metalloproteinases (TIMP) 2 levels in the TRPV4-injured lungs were decreased, suggesting that TRPV4 activation increases the availability of these active MMPs. We then determined whether MMP2 and MMP9 mediate TRPV4-induced lung injury. Pharmacological blockade (SB-3CT, 1 μM; Sigma) of MMP2 and MMP9 resulted in protection against TRPV4-induced lung injury. We conclude that TRPV4 activation and the subsequent Ca(2+) transient initiates a rapid cascade of events leading to release and activation of the gelatinase MMPs, which then contribute to lung injury.

Indexed as

AnimalsBlotting, WesternBronchoalveolar Lavage FluidCell-Matrix JunctionsFemaleLung InjuryMaleMatrix Metalloproteinase 2Matrix Metalloproteinase 9MiceMice, Inbred C57BLMice, KnockoutTissue Inhibitor of MetalloproteinasesTRPV Cation ChannelsMatrix Metalloproteinase 2Matrix Metalloproteinase 9Mmp2 protein, mouseMmp9 protein, mouseTissue Inhibitor of MetalloproteinasesTrpv4 protein, mouseTRPV Cation Channelslung permeabilitymatrix metalloproteinase 2matrix metalloproteinase 9transient receptor potential vanilloid 4

Identifiers

PMID25150065
PMCPMC4200386
OpenAlexW2317850582

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.