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  • Title: Interaction of vinblastine sulfate with artificial phospholipid membranes. A study by differential scanning calorimetry and spin labeling.
    Author: Berleur F, Roman V, Jaskierowicz D, Daveloose D, Leterrier F, Ter-Minassian-Saraga L, Madelmont G.
    Journal: Biochem Pharmacol; 1985 Sep 01; 34(17):3081-6. PubMed ID: 2994677.
    Abstract:
    The effect of the antimitotic drug vinblastine sulfate has been studied on fully hydrated dipalmitoylphosphatidylcholine (DPPC) liposomes in the temperature range 0 degrees to 60 degrees using differential scanning calorimetry and electron spin resonance spectroscopy with two fatty acid spin labels. In the gel phase, vinblastine interacts essentially with the DPPC polar heads and induces an important disorganization of the phospholipidic bilayer. The co-operativity of the main thermal transition is decreased. In the crystal-liquid phase, the drug penetrates inside the artificial membrane and induces the formation of domains which increased thermal stability. These effects are opposite to those observed with the drug isaxonine which is used to reduce the axonal degenerating effects due to vinblastine.
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