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Micrographs representative of time-lapse analysis of KS cell motility performed by digital saving at 30-minute intervals. Migration tracks were generated by marking the position of the nucleus of individual cells of each image (see Materials and Methods). KS cells were incubated with vehicle alone (A), with 10 ng/ml Tat (B), or with Tat (10 ng/ml) in the presence of 3 μmol/L WEB2170 (C). Original magnification, ×120.
