A new approach to study exhaled proteins as potential biomarkers for asthma

被引:62
作者
Bloemen, K. [1 ]
Van Den Heuvel, R. [1 ]
Govarts, E. [1 ]
Hooyberghs, J. [1 ,2 ]
Nelen, V. [3 ]
Witters, E. [1 ,4 ,5 ]
Desager, K. [6 ]
Schoeters, G. [1 ,7 ]
机构
[1] Flemish Inst Technol Res VITO, B-2400 Mol, Belgium
[2] Hasselt Univ, Dept WNI, Diepenbeek, Belgium
[3] PIH, Antwerp, Belgium
[4] Univ Antwerp, Dept Biol, Ctr Proteome Anal & Mass Spectrometry CEPROMA, B-2020 Antwerp, Belgium
[5] Univ Antwerp, Dept Ecophysiol Biochem & Toxicol EBT, B-2020 Antwerp, Belgium
[6] Univ Hosp Antwerp UZA, Dept Pediat, Edegem, Belgium
[7] Univ Antwerp, Dept Biomed Sci, B-2020 Antwerp, Belgium
关键词
asthma; biomarkers; EBC; exhaled breath condensate; BREATH CONDENSATE PH; LEUKOTRIENE B-4; NITRIC-OXIDE; PROTEOMIC ANALYSIS; MASS-SPECTROMETRY; ALLERGIC-ASTHMA; LUNG; ADULTS; RECOMMENDATIONS; EICOSANOIDS;
D O I
10.1111/j.1365-2222.2010.03638.x
中图分类号
R392 [医学免疫学];
学科分类号
100102 ;
摘要
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.
引用
收藏
页码:346 / 356
页数:11
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