Abstract
To explore the function of curcumin chitosan on the proliferation of human colorectal cancer HT29 cells and to explore its effect on apoptosis. We applied MTT assay to test the inhibitory effect of curcumin chitosan on the proliferation of HT29 cells. The alterations of colorectal cancer cell morphology were observed by optical microscope and electron microscope. The change of early apoptosis rate was determined by flow cytometry using Annexin-V/PI double staining. By Comparison with the control group, curcumin chitosan significantly suppressed the cell proliferation and promoted cell apoptosis of HT29 cells in not only dose- but also time-dependent manner; through light microscopy and electron microscopy, the cell volume was reduced, the cell membrane was shrunk, chromatin was significantly concentrated. Typical apoptotic features such as aggregation; flow cytometry confirmed a significant increase in apoptotic rates (p < 0 05).
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