Abstract
In an attempt to enhance delivery of liposome contents into cells, we tested the effect of lysophosphatidylcholine on transfer of the fluorescent dye, carboxyfluorescein, from small unilamellar and large multilamellar vesicles to human lymphocytes. Dioleoyl phosphatidylcholine and dioleoyl phosphatidylcholine-lysophosphatidylcholine small unilamellar vesicles with varying lipid ratios were prepared and characterized. In the presence of lysophosphatidylcholine, small unilamellar vesicles were slightly smaller and more leaky than those made without lysophosphatidylcholine. Lysophosphatidylcholine induced less leakage in large multilamellar vesicles. It did not show any appreciable effect on transfer of liposome contents, whether included as part of the liposomal bilayer (of unilamellar or multilamellar vesicles) or added exogenously together with small unilamellar dioleoyl phosphatidylcholine vesicles.
Original language | English (US) |
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Pages (from-to) | 543-551 |
Number of pages | 9 |
Journal | BBA - Biomembranes |
Volume | 597 |
Issue number | 3 |
DOIs | |
State | Published - Apr 24 1980 |
Externally published | Yes |
Keywords
- Fluorescent marker
- Leakage
- Liposomal membrane
- Lysophosphatidylcholine
- Permeability
ASJC Scopus subject areas
- Biophysics
- Biochemistry
- Cell Biology