Cited by 69Interstitial Lung Diseases and Idiopathic Pulmonary FibrosisSphingolipid Metabolism and SignalingOccupational and environmental lung diseases

The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.

Docosatetraenoyl LPA is elevated in exhaled breath condensate in idiopathic pulmonary fibrosis

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Abstract

BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a progressive and fatal disease with no effective medical therapies. Recent research has focused on identifying the biological processes essential to the development and progression of fibrosis, and on the mediators driving these processes. Lysophosphatidic acid (LPA), a biologically active lysophospholipid, is one such mediator. LPA has been found to be elevated in bronchoalveolar lavage (BAL) fluid of IPF patients, and through interaction with its cell surface receptors, it has been shown to drive multiple biological processes implicated in the development of IPF. Accordingly, the first clinical trial of an LPA receptor antagonist in IPF has recently been initiated. In addition to being a therapeutic target, LPA also has potential to be a biomarker for IPF. There is increasing interest in exhaled breath condensate (EBC) analysis as a non-invasive method for biomarker detection in lung diseases, but to what extent LPA is present in EBC is not known. METHODS: In this study, we used liquid chromatography-tandem mass spectrometry (LC-MS/MS) to assess for the presence of LPA in the EBC and plasma from 11 IPF subjects and 11 controls. RESULTS: A total of 9 different LPA species were detectable in EBC. Of these, docosatetraenoyl (22:4) LPA was significantly elevated in the EBC of IPF subjects when compared to controls (9.18 pM vs. 0.34 pM; p = 0.001). A total of 13 different LPA species were detectable in the plasma, but in contrast to the EBC, there were no statistically significant differences in plasma LPA species between IPF subjects and controls. CONCLUSIONS: These results demonstrate that multiple LPA species are detectable in EBC, and that 22:4 LPA levels are elevated in the EBC of IPF patients. Further research is needed to determine the significance of this elevation of 22:4 LPA in IPF EBC, as well as its potential to serve as a biomarker for disease severity and/or progression.

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Crossref · 10.1186/1471-2466-14-5

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Metadata

Authors
Montesi, S. B., Mathai, S. K., Brenner, L. N., Gorshkova, I. A., Berdyshev, E. V., Tager, A. M., & Shea, B. S.
Affiliations
  • Harvard University (US)
  • University of Colorado Denver (US)
  • University of Illinois Chicago (US)
Corresponding author
Shea, Barry S
Venue
BMC Pulmonary Medicine
Published
2014-01-27
Volume
14
Issue
1
Pages
5-5
ISSN
1471-2466 (ISSN-L)
OpenAlex
W2161787739
Cited by
66
References
39
Citations by year
2026: 3 · 2025: 9 · 2024: 5 · 2023: 8 · 2022: 4 · 2021: 5 · 2020: 10 · 2019: 3 · 2018: 4 · 2017: 3 · 2016: 6 · 2015: 4 · 2014: 1
FWCI
4.01
Type
journal article
Language
en
Open access
Locations
  • BMC Pulmonary Medicine (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
Funders
  • Massachusetts General Hospital
  • National Institutes of Health (HL108975)
  • National Heart, Lung, and Blood Institute (R01HL108975, K08HL105656, T32HL116275)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sphingolipid Metabolism and Signaling
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Occupational and environmental lung diseases
Keywords
idiopathic pulmonary fibrosis, lysophosphatidic acid, exhaled breath condensate, non-invasive biomarkers, lysophospholipids
MeSH terms
Aged, Breath Tests, Female, Humans, Lysophospholipids, Male, Idiopathic Pulmonary Fibrosis

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