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KMID : 0941819950050020075
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Korean Journal of Clinical Pharmacy
1995 Volume.5 No. 2 p.75 ~ p.84
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Nonhemolytic entrapping method into red blood cells and its release pattern
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Abstract
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Drug delivery by red cells was established to maintain the release of drugs in the blood. The entrapment method by amphotericin B was re-examined and evaluated for obtaining the suitable entrapping conditions without hemolysis. The amphotericin B treatment below 10{mu}g/ml induced the non-hemolysis to entrap daunorubicin into red cells within 10min. Under these conditions intracellular ATP level was decreased as 18%. Membrane fluidity and the shape factor of red cells were maintained. To maintain intracellular ATP, ATP and sodium pyruvate were added during the entrapment procedure because hemolysis during the release test would reflect the loss of intracellular ATP that would be postulate the decrease of the viability invivo. Consequently, the addition of ATP in the reaction solution can raise the intracellular level of ATP.
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