by time-resolved microscopy using a covalent fluorescence probe. We compared the
dynamics in a human breast cancer cell (MCF-7) with that in a normal breast cell MCF-10A.
The probe, CPM (7-diethylamino-3-(4-maleimido-phenyl)-4-methylcoumarin), binds with the
free thiol groups. In MCF-10A cell, CPM binds with the discrete mitochondria. In MCF-7,
CPM labels the clustered mitochondria in the peri-nuclear region. Location of the CPM in the …