Differences in uptake of adriamycin and daunomycin by normal BM cells and acute leukemia cells determined by flow cytometry
article
Flow cytometry was used to measure the uptake of adriamycin (AM) and daunomycin (DM) by various cell types of the haemopoietic organs and by acute myeloid leukemia (AML) cells. For this purpose, the spontaneous fluorescence of the drugs upon excitation with laser light at 488 nm was measured. The difference in the uptake of these two drugs correlates with their cytotoxicity. Myeloid progenitor cells from mouse bone marrow (CFU-C) are ten times more sensitive for DM than AM [ED10=0.85 ??g/ml (DM); 6.40 ??g/ml (AM)]. The cytotoxicity of DM is correlated with a higher fluorescence intensity of blast cells, lymphocytes and granulocytes when treated with DM as compared to AM. In contrast to this, the fluorescence of AML blast cells is significantly lower after treatment with DM than with AM. The uptake of both drugs seems to occur following active membrane transport, although to a different extent. Chemicals/CAS: daunorubicin, 12707-28-7, 20830-81-3, 23541-50-6; doxorubicin, 23214-92-8, 25316-40-9; Daunorubicin, 20830-81-3; Doxorubicin, 23214-92-8
Topics
Acute leukemiaAnimal experimentBlood and hemopoietic systemDrug absorptionDrug comparisonFlow cytometryGranulocyteHuman cellIn vitro studyLymphatic systemLymphoblastMyeloblastPharmacokineticsAcute DiseaseAnimalBone MarrowBone Marrow CellsColony-Forming Units AssayDaunorubicinDoxorubicinFluorometryHematopoietic Stem CellsHumanLeukemiaLymphocytesRats
TNO Identifier
229054
ISSN
01452126
Source
Leukemia Research, 5(3), pp. 251-257.
Pages
251-257
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