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Morphological features of the HT-29 cells treated with L. acidophilus KLDS1.0901 of different MOI (0, 10, 50, and 100) and 5-FU (100 μmol/L) for 24 h (A–E) and 48 h (F–J). A fluorescence microscope was used to photograph images (20×). The red and green arrows indicate the corresponding apoptosis and intact cells.
