Peptide-based synthetic pulmonary surfactant for the treatment of respiratory distress disorders.

Abstract:

:KL4 (sinapultide) represents the first peptide-based replacement for surfactant protein B in pulmonary surfactant (PS) therapies approved for clinical use. Surfaxin, its formulation with PS lipids, shows the promise of synthetic PS for replacing animal-derived PS in the treatment of respiratory distress syndromes and for treating acute lung injury. Efforts to characterize the molecular basis for KL4 function have revealed the peptide exhibits a helical structure which differentially partitions in response to both lipid saturation levels and pH. The penta-residue repeat of KL4 leads to adaptive peptide helicity, varying with partitioning depth, and suggests structural plasticity may represent an important mechanism for differential trafficking of lipids, particularly in intra-alveolar surfactant for the formation of stable DPPC monolayers at air-water interfaces.

journal_name

Curr Opin Chem Biol

authors

Braide-Moncoeur O,Tran NT,Long JR

doi

10.1016/j.cbpa.2016.02.012

subject

Has Abstract

pub_date

2016-06-01 00:00:00

pages

22-8

eissn

1367-5931

issn

1879-0402

pii

S1367-5931(16)30009-6

journal_volume

32

pub_type

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