RT Journal Article T1 Pulmonary surfactant metabolism in the alveolar airspace: Biogenesis,extracellular conversions, recycling A1 Olmeda Lozano, Bárbara A1 Martínez Calle, Marta A1 Pérez-Gil, Jesús AB 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 ofthe surface active film atthe air–water interface. Special attention is paid to the crucial regulation of surfactant homeostasis, because its disruption is associated with several lung pathologies. PB Elsevier SN 0940-9602, ESSN: 1618-0402 YR 2017 FD 2017-01 LK https://hdl.handle.net/20.500.14352/18064 UL https://hdl.handle.net/20.500.14352/18064 LA eng NO Ministerio de Economía y Competitividad (MINECO) NO Comunidad de Madrid DS Docta Complutense RD 6 abr 2025