Mitochondrial Apoptosis Detection Kit Mitochondrial Apoptosis Detection Kit utilizes JC-1, a cationic dye that fluoresces differently in healthy cells and in apoptotic cells. In healthy cells, JC-1 accumulates and aggregates in the mitochondria, giving off a bright red fluorescence. In apoptotic cells, the altered potential of mitochondrial transmembrane causes JC-1 to remain in the cytoplasm in its monomer form, fluorescing green. The fluorescent signals can be easily detected by fluorescence microscopy using a band-pass filter (detects FITC and rhodamine) or analyzed by flow cytometry using the FITC channel for green monomers (Ex/Em =488/530+ 30 nm) and the PI channel for red aggregates (Ex/Em =488/590+ 42 nm).
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