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

Viruses. 2022 Aug 24;14(9):1857. doi: 10.3390/v14091857.

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.

Keywords: RV; asthma; exacerbation; microarray; rhinovirus; rhinovirus A; rhinovirus B; rhinovirus C; virus infection; wheeze.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Antibody Formation
  • Asthma*
  • Child
  • Enterovirus Infections* / complications
  • Humans
  • Immunoglobulin G
  • Picornaviridae Infections*
  • Rhinovirus

Substances

  • Immunoglobulin G

Associated data

  • DRKS/DRKS00015738

Grants and funding

This research received funding from the Internal Research Grant of the Faculty of Health at Witten/Herdecke University, Germany (project numbers: IFF 2019-13, IFF 2020-02). Furthermore, this work was supported by the ‘Danube-ARC’ research program of the country of Lower Austria grant no. 330950005. The funding organizations had no role in the design and conduction of the study; sample collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; or the decision to submit the manuscript for publication.