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  • Title: The airway epithelium as regulator of inflammation patterns in asthma.
    Author: Erjefält JS.
    Journal: Clin Respir J; 2010 May; 4 Suppl 1():9-14. PubMed ID: 20500604.
    Abstract:
    INTRODUCTION: Asthma is a complex, heterogeneous and mutifactorial disease and represents a major health problem in Westernized countries. The airway epithelium, with its direct physical contact with luminal triggers, has a major role in determining the nature of inflammation that develops in asthmatic airways. OBJECTIVE: The present review aims to provide a brief overview of the numerous ways the airway epithelium can affect and influence the histopathological picture in asthma. RESULTS AND CONCLUSION: The ways the epithelium aggravates inflammation range from acute responses to luminal triggers such as allergens and infections to the multipathogenic events occurring as a consequence of repeated epithelial damage-repair responses. The airway epithelium also facilitates the selective migration of leukocytes into the airway lumen, a process that is important in regulating inflammatory cell homeostasis. The fact that only some of the important leukocyte subtypes participate in this process cause translational problems and difficulties in the interpretation of luminal samples. To further reveal the nature of the multifaceted involvement of the airway epithelium in inflamed asthmatic airways emerges as a promising goal for identifying new therapeutic strategies.
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