Year: 2025
Type: article
Abstract: The relationship between asthma, infections, and immunodeficiencies is complex and affects disease progression. Immune deficiencies can occur independently or because of the inflammatory processes associated with asthma. Early viral infections like respiratory sinticial virus and rhinovirus trigger asthma attacks, while bacteria such as Haemophilus influenzae, Streptococcus pneumoniae, Mycoplasma pneumoniae, and Chlamydia pneumoniae worsen airway inflammation. People with asthma often have defects in innate (mucociliary clearance, interferons, defensins, NK cell, and eosinophils) and adaptive immunity such as immunoglobulin (Ig) deficiencies, making them more vulnerable to lung infections. Combined and selective deficiencies of IgA, IgG, IgM, and IgE are linked to higher asthma rates and reduced effectiveness of treatments, but immunoglobulin therapy can help control symptoms. Biologic therapies also decrease asthma exacerbations during periods of high viral activity by boosting immune responses and airway defenses. However, the link between asthma and higher infection risk is not well studied or understood, so guidelines do not recommend routinely checking for immunodeficiencies in cases of poor treatment response. Further investigation is required to elucidate these relationships and enhance management approaches.
Source: Journal of Respiration
DOI: 10.3390/jor5040020
Institutions: Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, Hospital Clínic de Barcelona, Consorci Institut D'Investigacions Biomediques August Pi I Sunyer, Universitat de Barcelona, Fundació de Recerca Clínic Barcelona-Institut d’Investigacions Biomèdiques August Pi i Sunyer
Language: English
Subfield: Physiology
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $1,207
OpenAlex ID: W4417123277