Dynamic Urinary Proteome Changes in Ovalbumin-Induced Asthma Mouse Model Using Data-Independent Acquisition Proteomics

Abstract

Weiwei Qin,1,2 Ting Wang,2 Guangwei Liu,3 Lixin Sun,1 Wei Han,4 Youhe Gao2 1Department of Anesthesiology, Qingdao Municipal Hospital, Qingdao University, Qingdao, 266071, People’s Republic of China; 2Department of Biochemistry and Molecular Biology, Gene Engineering Drug and Biotechnology Beijing Key Laboratory, Beijing Normal University, Beijing, 100875, People’s Republic of China; 3Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, Institute of Cell Biology, College of Life Sciences, Beijing Normal University, Beijing, 100875, People’s Republic of China; 4Department of Respiratory Medicine, Qingdao Municipal Hospital, Qingdao University, Qingdao, 266071, People’s Republic of ChinaCorrespondence: Youhe Gao; Wei Han Tel [phone]Email [email protected]; [email protected]: In this work, we aim to investigate dynamic urinary proteome changes during asthma development and to identify potential urinary protein biomarkers for the diagnosis of asthma.Methods: An ovalbumin (OVA)-induced mouse model was used to mimic asthma. The urinary proteome from asthma and control mice was determined using data-independent acquisition combined with high-resolution tandem mass spectrometry.Results: Overall, 331 proteins were identified, among which 53 were differentially expressed (26, 24, 14 and 20 on days 2, 8, 15 and 18, respectively; 1.5-fold change, adjust P< 0.05). Gene Ontology annotation of the differential proteins showed that the acute-phase response, innate immune response, B cell receptor signaling pathway, and complement activation were significantly enriched. Protein–protein interaction network revealed that these differential proteins were partially biologically connected in OVA-induced asthma, as a group. On days 2 and 8, after two episodes of OVA sensitization, six differential proteins (CRAMP, ECP, HP, F2, AGP1, and CFB) were also reported to be closely associated with asthma. These proteins may hold the potential for the early screening of asthma. On days 15 and 18, after challenged with 1% OVA by inhalation, seven differential proteins (VDBP, HP, CTSE, PIGR, AAT, TRFE, and HPX) were also reported to be closely associated with asthma. Thus, these proteins hold the potential to be biomarkers for the diagnosis of asthma attack.Conclusion: Our results indicate that the urinary proteome could reflect dynamic pathophysiological changes in asthma progression.Keywords: OVA-induced asthma, mice, urine, proteome, data-independent acquisition

Keywords

• ova-induced asthma
• mice
• urine
• proteome
• data-independent acquisition