Microarray-Based Analyses of Rhinovirus Species-Specific Antibody Responses in Exacerbated Pediatric Asthma in a German Pediatric Cohort

Erwan Sallard, Katarzyna Niespodziana, Maja Bajic, Thomas Schlederer, Peter Errhalt, Ann-kathrin Behrendt, Stefan Wirth, Almut Meyer-bahlburg, Anja Ehrhardt, Rudolf Valenta, Malik Aydin

Research output: Journal article (peer-reviewed)Journal article

Abstract

Rhinoviruses (RV) account for a significant number of asthma exacerbations, and RV species C may be associated with a severe course in vulnerable patient groups. Despite important evidence on the role of RV reported by clinicians and life scientists, there are still unanswered questions regarding their influence on asthma exacerbation in young patients. Thus, we measured the RVspecies-specific IgG titers in our German pediatric exacerbation cohort using a microarray-based technology. For this approach, human sera of patients with exacerbated asthma and wheeze, as well as healthy control subjects ( n = 136) were included, and correlation analyses were performed. Concordantly with previously published results, we observed significantly higher cumulative levels of RV species A-specific IgG ( p = 0.011) and RV-C-specific IgG ( p = 0.051) in exacerbated asthma group compared to age-matched controls. Moreover, atopic wheezers had increased RV-specific IgG levels for species A ( p = 0.0011) and species C ( p = 0.0009) compared to non-atopic wheezers. Hypothesizing that bacterial infection positively correlates with immune memory against RV, we included nasopharyngeal swab results in our analyses and detected limited correlations. Interestingly, the eosinophil blood titer positively correlated with RV-specific IgG levels. With these observations, we add important observations to the existing data regarding exacerbation in pediatric and adolescent medicine. We propose that scientists and clinicians should pay more attention to the relevance of RV species in susceptible pediatric patients.

Original languageEnglish
Article number1857
Pages (from-to)1857
JournalViruses
Volume14
Issue number9
DOIs
Publication statusPublished - Sep 2022

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