Fluorescence histograms of immunolabeled cytochrome c in cells untreated (A) or treated (B) with <i>Hemidesmus</i> (0.93 mg/mL).

<p>Note the decrease of the highly fluorescent cell population in region 1 (M1) and the progressive increase of the nonfluorescent cell population in region 2 (M2). M1 and M2, regions arbitrarily defined to limit the population of cells with high and low fluorescence, respectively. Numbers at top of M1 and M2 regions are percentages of cells in each region. Histograms are representatives of three independent experiments.