Apoptosis of HL60/VCR Cells Induced by Topotecan
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Abstract
Objective To gain insight into the mechanisms of topotecan(TPT) inducing apoptosis of acute myelogenous leukemia multidrug-resistant HL60/VCR cells. Methods Exposed HL60/VCR cells to different concentrations of TPT, morphologic evidence for apoptosis was determined by Wright-Gimsa and Acridine Orange/ethidium bromide(AO/EB) staining. Cell cycle, Sub-G1 and Annexin V FITC staining were detected by flow cytometry. The expression of active caspase-3, bcl-2 and Pgp were detected by Western blot. Results HL...
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