What question did this study set out to answer?

To determine how surfactant protein D interacts with phosphatidylinositol and surfactant protein B to influence lipid ultrastructure and surface activity compared to surfactant protein A.

May 1, 1999American Journal of Respiratory Cell and Molecular Biology

Ultrastructure of Phospholipid Mixtures Reconstituted with Surfactant Proteins B and D

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Authors

FPFrancis R. PoulainMolecular Biology Consortium JAJennifer A. AkiyamaLawrence Berkeley National Laboratory LALennell AllenCardiovascular Institute Hospital

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Implication

In vitro experiment reveals formation of distinct tubular aggregates by surfactant protein D in lipid mixtures, indicating a structural role in lung surfactant organization.

Key Points

To determine how surfactant protein D interacts with phosphatidylinositol and surfactant protein B to influence lipid ultrastructure and surface activity compared to surfactant protein A.
Reconstituted phospholipid vesicles containing phosphatidylinositol (PI) with surfactant protein B (SP-B) and surfactant protein D (SP-D), comparing them against SP-A-based mixtures.
Analyzed the ultrastructure of reconstituted lipid-protein complexes and native secretions from alveolar type II cells maintained in long-term culture.
SP-D restructured phospholipid vesicles containing PI and SP-B into atypical, highly ordered, and surface-active tubular aggregates distinct from classical SP-A tubular myelin.
Cultured alveolar type II cell secretions naturally contained both classical SP-A tubules and the atypical SP-D-associated tubular structures.

Cite This Study

Poulain et al. (1999) studied this question.

synapsesocial.com/papers/6a8d55509a08a4eedd7fe82b https://doi.org/10.1165/ajrcmb.20.5.3497

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Implication

In vitro experiment reveals formation of distinct tubular aggregates by surfactant protein D in lipid mixtures, indicating a structural role in lung surfactant organization.

Ultrastructure of Phospholipid Mixtures Reconstituted with Surfactant Proteins B and D

Discussion

Member takes

Implication

Key Points

Cite This Study

Ultrastructure of Phospholipid Mixtures Reconstituted with Surfactant Proteins B and D

Discussion

Member takes

Implication

Key Points

Cite This Study

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