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Updated: Mar 12, 2026

Lavage-induced Surfactant Depletion in Pigs As a Model of the Acute Respiratory Distress Syndrome ARDS
Published on: September 7, 2016
Surfactant protein A: A key player in lung homeostasis
Nadia Nathan1, Jessica Taytard2, Philippe Duquesnoy3
1Service de pneumologie pédiatrique, Hôpital Armand Trousseau, Assistance Publique Hôpitaux de Paris, Centre national de référence des maladies respiratoires rares RespiRare, Paris 75012, France; Inserm UMRS933, Université Pierre et Marie Curie (Paris 6), Sorbonne Universités, Paris 75012, France.
Abstract:
The respiratory tract is continually exposed to various insults that are a permanent threat to the maintenance of lung homeostasis. Repair of the parenchyma structure, particularly of the alveolar epithelium, requires complex cellular strategies. Among the molecular components that play an important role in these processes are the surfactant proteins (SPs), particularly SP-A. The present review examines current evidence regarding the role of SP-A in lung host defence mechanisms through its implication in innate/adaptive immunity of the lung and epithelium integrity and repair. New information on SP-A deficiency in various forms of pulmonary diseases could help define therapeutic strategies aimed at restoring functional SP-A within the alveolar structure.
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