What question did this study set out to answer?

To investigate the direct interaction between smooth and rough bacterial lipopolysaccharides and plasma high-density lipoprotein, and to evaluate their subsequent clearance kinetics in rats.

May 1, 1980Infection and ImmunityOpen Access

Interaction of lipopolysaccharides with plasma high-density lipoprotein in rats

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Authors

MFMarina A. FreudenbergTufts University TBT.C. Bøg-HansenStatens Serum Institut UBU. BackStatens Serum Institut

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Implication

Animal study demonstrates binding and clearance of bacterial lipopolysaccharides by high-density lipoprotein in rats, suggesting high-density lipoprotein functions as an endotoxin transporter.

Key Points

To investigate the direct interaction between smooth and rough bacterial lipopolysaccharides and plasma high-density lipoprotein, and to evaluate their subsequent clearance kinetics in rats.
Administered intravenous injections of smooth (S)-form and rough (R)-form lipopolysaccharide preparations to rats.
Tracked alterations in plasma proteins and complex formation using crossed immunoelectrophoresis.
Measured in vivo plasma elimination rates over time using carbon-14-labeled lipopolysaccharides.
Both S-form and R-form lipopolysaccharides formed dose-dependent complexes with high-density lipoprotein, with the S-form complex migrating slower and the R-form complex migrating faster than free high-density lipoprotein.
The rough-form lipopolysaccharide complex cleared from plasma within several hours, whereas the smooth-form complex remained partially detectable after 2 days.
Plasma elimination rates of carbon-14-labeled lipopolysaccharides closely mirrored the disappearance kinetics of their respective high-density lipoprotein complexes.

Cite This Study

Freudenberg et al. (1980) studied this question.

synapsesocial.com/papers/6a7c03452305edf9bbed314c https://doi.org/10.1128/iai.28.2.373-380.1980

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Implication

Animal study demonstrates binding and clearance of bacterial lipopolysaccharides by high-density lipoprotein in rats, suggesting high-density lipoprotein functions as an endotoxin transporter.

Interaction of lipopolysaccharides with plasma high-density lipoprotein in rats

Discussion

Member takes

Implication

Key Points

Cite This Study

Interaction of lipopolysaccharides with plasma high-density lipoprotein in rats

Discussion

Member takes

Implication

Key Points

Cite This Study

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