Pulmonary surfactant metabolism in the alveolar airspace: Biogenesis, extracellular conversions, recycling

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• 作者：Bá ; rbara Olmeda ; Marta Martí ; nez-Calle ; Jesus Pé ; rez-Gil ; ^{jperezgil@bio.ucm.es}
• 关键词：Pulmonary surfactant ; Lung ; Surface tension ; Air&ndash ; liquid interface ; Pneumocyte
• 刊名：Annals of Anatomy - Anatomischer Anzeiger
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：209
• 期：Complete
• 页码：78-92
• 全文大小：3189 K
• 卷排序：209

文摘

Pulmonary surfactant is a lipid–protein complex that lines and stabilizes the respiratory interface in the alveoli, allowing for gas exchange during the breathing cycle. At the same time, surfactant constitutes the first line of lung defense against pathogens.This review presents an updated view on the processes involved in biogenesis and intracellular processing of newly synthesized and recycled surfactant components, as well as on the extracellular surfactant transformations before and after the formation of the surface active film at the air–water interface. Special attention is paid to the crucial regulation of surfactant homeostasis, because its disruption is associated with several lung pathologies.