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Review
. 1995 Jun;23(3):86-91.

[Immunopathogenesis of extrinsic allergic alveolitis]

[Article in German]
C Vogelmeier  1 , G Mazur, A Pethran, T Beinert, R Buhl, W M Becker
Affiliations
  • PMID: 7615307
Review

[Immunopathogenesis of extrinsic allergic alveolitis]

[Article in German]
C Vogelmeier et al. Immun Infekt. 1995 Jun.

Abstract

Inhalation of a variety of organic dusts may cause the onset of hypersensitivity pneumonitis (HP) finally leading to irreversible pulmonary fibrosis in some individuals. So far, the pathogenesis of HP remains partially unclear. Besides patient-related factors this is probably attributable to the complex composition of the causative dusts: in addition to specific antigens that may induce type III and type IV reactions they contain a variety of additional components like particles and toxins with the ability to promote several antigen-independent reactions. During an acute episode of HP a marked alveolitis dominated by polymorphonuclear cells develops. As we showed these polymorphonuclear cells are in an activated state and may therefore cause pronounced damage in the lung interstitium. Based on these and other findings we believe that polymorphonuclear cells are of predominant importance for the pathogenesis of HP.

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