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Research article - Peer-reviewed, 2021

Treatment of Respiratory Distress Syndrome with Single Recombinant Polypeptides that Combine Features of SP-B and SP-C

Basabe-Burgos, Oihana; Landreh, Michael; Rising, Anna; Curstedt, Tore; Johansson, Jan


Treatment of respiratory distress syndrome (RDS) with surfactant replacement therapy in prematurely born infants was introduced more than 30 years ago; however, the surfactant preparations currently in clinical use are extracts from animal lungs. A synthetic surfactant that matches the currently used nature-derived surfactant preparations and can be produced in a cost-efficient manner would enable worldwide treatment of neonatal RDS and could also be tested against lung diseases in adults. The major challenge in developing fully functional synthetic surfactant preparations is to recapitulate the properties of the hydrophobic lung surfactant proteins B (SP-B) and SP-C. Here, we have designed single polypeptides that combine properties of SP-B and SP-C and produced them recombinantly using a novel solubility tag based on spider silk production. These Combo peptides mixed with phospholipids are as efficient as nature-derived surfactant preparations against neonatal RDS in premature rabbit fetuses.

Published in

ACS Chemical Biology
2021, volume: 16, number: 12, pages: 2864-2873

Authors' information

Basabe-Burgos, Oihana
Karolinska Institutet
Landreh, Michael
Karolinska Institutet
Karolinska Institute
Swedish University of Agricultural Sciences, Department of Anatomy, Physiology and Biochemistry (AFB)
Curstedt, Tore
Karolinska University Hospital
Johansson, Jan
Karolinska Institutet

UKÄ Subject classification

Respiratory Medicine and Allergy

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