title: Aspergillus-associated airway disease, inflammation, and the innate immune response.
abstract: Aspergillus moulds exist ubiquitously as spores that are inhaled in large numbers daily. Whilst most are removed by anatomical barriers, disease may occur in certain circumstances. Depending on the underlying state of the human immune system, clinical consequences can ensue ranging from an excessive immune response during allergic bronchopulmonary aspergillosis to the formation of an aspergilloma in the immunocompetent state. The severest infections occur in those who are immunocompromised where invasive pulmonary aspergillosis results in high mortality rates. The diagnosis of Aspergillus-associated pulmonary disease is based on clinical, radiological, and immunological testing. An understanding of the innate and inflammatory consequences of exposure to Aspergillus species is critical in accounting for disease manifestations and preventing sequelae. The major components of the innate immune system involved in recognition and removal of the fungus include phagocytosis, antimicrobial peptide production, and recognition by pattern recognition receptors. The cytokine response is also critical facilitating cell-to-cell communication and promoting the initiation, maintenance, and resolution of the host response. In the following review, we discuss the above areas with a focus on the innate and inflammatory response to airway Aspergillus exposure and how these responses may be modulated for therapeutic benefit.
authors: Department of Respiratory Medicine, Beaumont Hospital, Dublin 9, Ireland. schotirmall@rcsi.ie
authors: Sanjay H
authors: SH
authors: Chotirmall
authors: Mazen
authors: M
authors: Al-Alawi
authors: Bojana
authors: B
authors: Mirkovic
authors: Gillian
authors: G
authors: Lavelle
authors: P Mark
authors: PM
authors: Logan
authors: Catherine M
authors: CM
authors: Greene
authors: Noel G
authors: NG
authors: McElvaney
mesh_terms: D000818:Animals; D001230:Aspergillus / Q000276:immunology*; D006801:Humans; D007113:Immunity, Innate / Q000276:immunology*; D008168:Lung / Q000276:immunology*; D018448:Models, Immunological; D011014:Pneumonia / Q000276:immunology* / Q000382:microbiology*; D055732:Pulmonary Aspergillosis / Q000276:immunology* / Q000382:microbiology*
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