Chen F, Liang Y, Zeng Z, Du L, Xu C, Guo Y, Xie C. Association of increased basic salivary proline-rich protein 1 levels in induced sputum with type 2-high asthma.
Immun Inflamm Dis 2022;
10:e602. [PMID:
35344278 PMCID:
PMC8959441 DOI:
10.1002/iid3.602]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 02/07/2022] [Accepted: 02/09/2022] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND
The aim of this study is to reveal whether basic salivary proline-rich protein BstNI subfamily 1 (PRB1) may be used as a diagnostic biomarker for type 2-high asthma.
METHODS
PRB1 protein levels in the induced sputum of 67 subjects with asthma and 27 controls were determined by an enzyme-linked immunosorbent assay. Correlation analyses between PRB1 in the induced sputum and airway inflammatory indicators were also performed.
RESULTS
PRB1 protein levels were significantly upregulated in the induced sputum of asthmatic patients (p =0.0098) and correlated with clinical eosinophil-related indicators and type 2 airway inflammation. These results indicate that PRB1 is a promising biomarker for type 2-high asthma.
CONCLUSIONS
The expression of PRB1 in induced sputum is a potential biomarker for type 2-high asthma. The results of this study present new insights into the diagnosis and treatment of asthma.
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