Surface activity of a synthetic lung surfactant containing a phospholipase-resistant phosphonolipid analog of dipalmitoyl phosphatidylcholine.
@article{Wang2003SurfaceAO,
title={Surface activity of a synthetic lung surfactant containing a phospholipase-resistant phosphonolipid analog of dipalmitoyl phosphatidylcholine.},
author={Z. Wang and Adrian L. Schwan and Luke L. Lairson and James S. O’Donnell and G F Byrne and Adam Foye and Bruce A. Holm and Robert H. Notter},
journal={American journal of physiology. Lung cellular and molecular physiology},
year={2003},
volume={285 3},
pages={
L550-9
}
}Surface activity and sensitivity to inhibition from phospholipase A2 (PLA2), lysophosphatidylcholine (LPC), and serum albumin were studied for a synthetic C16:0 diether phosphonolipid (DEPN-8) combined with 1.5% by weight of mixed hydrophobic surfactant proteins (SP)-B/C purified from calf lung surfactant extract (CLSE). Pure DEPN-8 had better adsorption and film respreading than the major lung surfactant phospholipid dipalmitoyl phosphatidylcholine and reached minimum surface tensions <1 mN/m…
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References
SHOWING 1-10 OF 67 REFERENCES
Chemical synthesis and surface activity of lung surfactant phospholipid analogs. II. Racemic N-substituted diether phospholipids
- Chemistry, Biology
- 1991
Chemical synthesis and surface activity of lung surfactant phospholipid analogs. II. Racemic N-substituted diether phosphonolipids.
- Chemistry, BiologyBiochimica et biophysica acta
- 1991
Findings suggest that selected analog compounds, synthesized with relatively small structural modifications from biologic glycerophospholipids, may have eventual applications as components of synthetic exogenous lung surfactants.
Additivity of protein and nonprotein inhibitors of lung surfactant activity.
- BiologyAmerican journal of respiratory and critical care medicine
- 1998
Results indicate that surfactant dysfunction in acute respiratory distress syndrome (ARDS) could be increased in severity by interactions between some inhibitory substances, but that supplementation with exogenous CLSE would be effective in reversing inactivation by the mixtures of blood proteins, membrane lipids, and fatty acids studied.
In vivo function of surfactants containing phosphatidylcholine analogs.
- Chemistry, MedicineAmerican journal of respiratory and critical care medicine
- 1994
DEPC and DEPnC were as effective as DPPC as lipid components of synthetic surfactants for certain lung injuries and improved in vivo function to levels comparable to LES.
A diether phosphonolipid surfactant analog, DEPN-8, is resistant to phospholipase-C cleavage.
- Biology, ChemistryRespiration; international review of thoracic diseases
- 1997
The results suggest that (R)(S)-DEPN-8 and structurally related analogs may be useful as components of exogenous replacement surfactant formulations for the treatment of ARDS-related lung injuries.
A competitive inhibitor of phospholipase A2 decreases surfactant phosphatidylcholine degradation by the rat lung.
- BiologyThe Biochemical journal
- 1992
A significant role for acidic Ca(2+)-independent PLA2 in the degradation of internalized alveolar PC is demonstrated, but further indicate that this enzyme accounts for a minor fraction of total lung PC metabolism.
Multiple Mechanisms of Lung Surfactant Inhibition
- BiologyPediatric Research
- 1999
The ability of LPC or other cell membrane lipids to penetrate interfacial films and raise γmin even at high surfactant concentration may increase their inhibitory actions during acute lung injury.
Bilayer characteristics of a diether phosphonolipid analog of the major lung surfactant glycerophospholipid dipalmitoyl phosphatidylcholine.
- Materials Science, PhysicsJournal of lipid research
- 1995
Dynamic Interfacial Properties of Surface-excess Films of Phospholipids and Phosphonolipid Analogs
- Chemistry
- 1994
Abstract Dynamic surface pressure-area (π-A) isotherms were measured for dipalmitoyl phosphatidylcholine (DPPC), dipalmitoyl phosphatidylethanolamine (DPPE), and 13 chain-equivalent synthetic…
Chemical synthesis and surface properties of an analog of the pulmonary surfactant dipalmitoyl phosphatidylcholine.
- Materials ScienceBiochimica et biophysica acta
- 1977










