Proteomic characterization of human exhaled breath condensate - Inserm - Institut national de la santé et de la recherche médicale
Article Dans Une Revue Journal of Breath Research Année : 2018

Proteomic characterization of human exhaled breath condensate

Résumé

To improve biomedical knowledge and to support biomarker discovery studies, it is essential to establish comprehensive proteome maps for human tissues and biofluids, and to make them publicly accessible. In this study, we performed an in-depth proteomics characterization of exhaled breath condensate (EBC), a sample obtained non-invasively by condensation of exhaled air that contains submicron droplets of airway lining fluid. Two pooled samples of EBC, each obtained from 10 healthy donors, were processed using a straightforward protocol based on sample lyophilization, in-gel digestion and liquid chromatography tandem-mass spectrometry analysis. Two 'technical' control samples were processed in parallel to the pooled samples to correct for exogenous protein contamination. A total of 229 unique proteins were identified in EBC among which 153 proteins were detected in both EBC pooled samples. A detailed bioinformatics analysis of these 153 proteins showed that most of the proteins identified corresponded to proteins secreted in the respiratory tract (lung, bronchi). Eight proteins were salivary proteins. Our dataset is described and has been made accessible through the ProteomeXchange database (dataset identifier: PXD007591) and is expected to be useful for future MS-based biomarker studies using EBC as the diagnostic specimen.
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hal-02083443 , version 1 (08-01-2025)

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Maud Lacombe, Caroline Marie-Desvergne, Florence Combes, Alexandra Kraut, Christophe Bruley, et al.. Proteomic characterization of human exhaled breath condensate. Journal of Breath Research, 2018, 12 (2), pp.021001. ⟨10.1088/1752-7163/aa9e71⟩. ⟨hal-02083443⟩
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