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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/11746

Title: A new approach to study exhaled proteins as potential biomarkers for asthma
Authors: Bloemen, K.
Van Den Heuvel, R.
Govarts, E.
Nelen, V.
Witters, E.
Desager, K.
Schoeters, G.
Issue Date: 2011
Citation: CLINICAL AND EXPERIMENTAL ALLERGY, 41(3). p. 346-356
Abstract: P>Background Asthma is a complex clinical disease characterized by airway inflammation. Recently, various studies reported on the analysis of exhaled breath condensate (EBC) in the search for potential biomarkers for asthma. However, in a complex disease such as asthma, one biomarker might not be enough for early diagnosis or follow-up. Objective The use of proteome analysis may reveal disease-specific proteolytic peptide or protein patterns, and may lead to the identification of novel proteins for the detection of asthma. Methods Liquid chromatography and mass spectrometry were used to separate and detect proteins (proteolytic peptides) present in EBC samples from 30 healthy children and 40 children with asthma in the age group of 6-12 years. Results Support vector machine analysis resulted in differentiating profiles based on asthma status. These proteolytic peptide patterns were not correlated to some well known (spirometry, exhaled nitric oxide) and more recently described exhaled markers (EBC pH, LTB4). The more abundant proteins in EBC were identified as cytokeratins, albumin, actin, haemoglobin, lysozyme, dermcidin, and calgranulin B. Conclusion Although the exact role in the disease development or physiological state of the airways of the proteins described in the presented pattern is not clear at this moment, this is an important step in the search for exhaled biomarkers for asthma. This study shows that EBC contains proteins that are of interest for future non-invasive asthma diagnosis or follow-up.
Notes: [Bloemen, K.; Van Den Heuvel, R.; Govarts, E.; Hooyberghs, J.; Witters, E.; Schoeters, G.] Flemish Inst Technol Res VITO, B-2400 Mol, Belgium. [Hooyberghs, J.] Hasselt Univ, Dept WNI, Diepenbeek, Belgium. [Nelen, V.] PIH, Antwerp, Belgium. [Witters, E.] Univ Antwerp, Dept Biol, Ctr Proteome Anal & Mass Spectrometry CEPROMA, B-2020 Antwerp, Belgium. [Witters, E.] Univ Antwerp, Dept Ecophysiol Biochem & Toxicol EBT, B-2020 Antwerp, Belgium. [Desager, K.] Univ Hosp Antwerp UZA, Dept Pediat, Edegem, Belgium. [Schoeters, G.] Univ Antwerp, Dept Biomed Sci, B-2020 Antwerp, Belgium. greet.schoeters@vito.be
URI: http://hdl.handle.net/1942/11746
DOI: 10.1111/j.1365-2222.2010.03638.x
ISI #: 000287036800009
ISSN: 0954-7894
Category: A1
Type: Journal Contribution
Validation: ecoom, 2012
Appears in Collections: Research publications

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