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A Role for Bronchial Epithelial Autotaxin in Ventilator-induced Lung Injury

Overview
Specialty Critical Care
Date 2021 Mar 29
PMID 33778909
Citations 3
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Abstract

Background: The pathophysiology of acute respiratory distress syndrome (ARDS) may eventually result in heterogeneous lung collapse and edema-flooded airways, predisposing the lung to progressive tissue damage known as ventilator-induced lung injury (VILI). Autotaxin (ATX; ENPP2), the enzyme largely responsible for extracellular lysophosphatidic acid (LPA) production, has been suggested to play a pathogenic role in, among others, pulmonary inflammation and fibrosis.

Methods: C57BL/6 mice were subjected to low and high tidal volume mechanical ventilation using a small animal ventilator: respiratory mechanics were evaluated, and plasma and bronchoalveolar lavage fluid (BALF) samples were obtained. Total protein concentration was determined, and lung histopathology was further performed RESULTS: Injurious ventilation resulted in increased BALF levels of ATX. Genetic deletion of ATX from bronchial epithelial cells attenuated VILI-induced pulmonary edema.

Conclusion: ATX participates in VILI pathogenesis.

Citing Articles

Decrease in serum levels of autotaxin in COVID-19 patients.

Shimura T, Kurano M, Okamoto K, Jubishi D, Hashimoto H, Kano K Ann Med. 2022; 54(1):3189-3200.

PMID: 36369824 PMC: 9665086. DOI: 10.1080/07853890.2022.2143554.


[Value of autotaxin in predicting refractory pneumonia in children and its correlation with inflammatory cytokines].

Fu B, Zhong L, Ye T, Han Y, Qiu X Zhongguo Dang Dai Er Ke Za Zhi. 2022; 24(7):765-770.

PMID: 35894191 PMC: 9336629. DOI: 10.7499/j.issn.1008-8830.2203030.


Commonalities Between ARDS, Pulmonary Fibrosis and COVID-19: The Potential of Autotaxin as a Therapeutic Target.

Ntatsoulis K, Karampitsakos T, Tsitoura E, Stylianaki E, Matralis A, Tzouvelekis A Front Immunol. 2021; 12:687397.

PMID: 34671341 PMC: 8522582. DOI: 10.3389/fimmu.2021.687397.

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