1. Biomarkers for predicting response to aspirin therapy in aspirin-exacerbated respiratory disease.
- Author
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Tyrak KE, Pajdzik K, Jakieła B, Kupryś-Lipińska I, Ćmiel A, Kacorzyk R, Trąd G, Kuna P, Sanak M, and Mastalerz L
- Subjects
- Adult, Female, Humans, Male, Middle Aged, Asthma, Aspirin-Induced prevention & control, Biomarkers, Desensitization, Immunologic methods
- Abstract
Background: Aspirin desensitization followed by daily aspirin use is an effective treatment for aspirin-exacerbated respiratory disease (AERD)., Objective: To assess clinical features as well as genetic, immune, cytological and biochemical biomarkers that might predict a positive response to high-dose aspirin therapy in AERD., Methods: We enrolled 34 AERD patients with severe asthma who underwent aspirin desensitization followed by 52-week aspirin treatment (650 mg/d). At baseline and at 52 weeks, clinical assessment was performed; phenotypes based on induced sputum cells were identified; eicosanoid, cytokine and chemokine levels in induced sputum supernatant were determined; and induced sputum expression of 94 genes was assessed. Responders to high-dose aspirin were defined as patients with improvement in 5-item Asthma Control Questionnaire score, 22-item Sino-Nasal Outcome Test (SNOT-22) score and forced expiratory volume in 1 second at 52 weeks., Results: There were 28 responders (82%). Positive baseline predictors of response included female sex (p = .002), higher SNOT-22 score (p = .03), higher blood eosinophil count (p = .01), lower neutrophil percentage in induced sputum (p = .003), higher expression of the hydroxyprostaglandin dehydrogenase gene, HPGD (p = .004) and lower expression of the proteoglycan 2 gene, PRG2 (p = .01). The best prediction model included Asthma Control Test and SNOT-22 scores, blood eosinophils and total serum immunoglobulin E. Responders showed a marked decrease in sputum eosinophils but no changes in eicosanoid levels., Conclusions and Clinical Relevance: Female sex, high blood eosinophil count, low sputum neutrophil percentage, severe nasal symptoms, high HPGD expression and low PRG2 expression may predict a positive response to long-term high-dose aspirin therapy in patients with AERD., (© 2021 The Authors. Clinical & Experimental Allergy published by John Wiley & Sons Ltd.)
- Published
- 2021
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