Acta Med. 2002, 45: 135-144

Time Dependent Appearance of Selected Apoptotic Markers and Usefulness of Their Detection In vitro

Emil Rudolf, Miroslav Červinka

Charles University in Prague, Faculty of Medicine in Hradec Králové, Department of Medical Biology and Genetics, Hradec Králové, Czech Republic

Received October 1, 2002
Accepted November 1, 2002

Many experiments have demonstrated that some cell lines are resistant to chemically induced apoptosis in vitro, and that apoptosis itself is far from being a homogenous phenomenon. Here we show that 10 μg/ml etoposide elicited only minor changes in Bowes human melanoma cells (temporary decrease in cell viability and proliferation, transient phospatidylserine externalization and caspase-3 activation), which weren’t clearly capable to start apoptotic pathway in the entire treated population. On the other hand, potassium chromate at concentration of 150 μg/ml executed cell death bearing some features of apoptosis (cell blebbing, caspase-3 activation and cytoskeletal changes) but lacking or showing weakly others (DNA fragmentation and phospatidylserine externalization). Our results suggest that in detecting apoptosis several faultproof detection systems are to be used to avoid misleading results and conclusions in each experimental setting.


This work was supported by Ministry of Education Czech Republic Research Project FJ MSM 111500001.


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