To explore the effects and underlying mechanisms of Morin in human colorectal cancer. Effects of Morin on proliferation of human colorectal cells were detected by MTT and colony formation assay. Effects of Morin on growth of colorectal tumors were examined using the xenograft tumor model. Production of inflammatory cytokines was evaluated by ELISA assay. Effects of Morin on p65-NFκB expression and activation in HCT-116 cells were determined by qRT-PCR and western blot. Effects of C/EBPβ-induced upregulation of p65-NFκB on the inhibitory effects of Morin in HCT-116 cells were evaluated by qRT-PCR, western blot and immunofluorescent staining analysis. Morin inhibited cell proliferation of human colorectal cells and growth of colorectal tumors . Morin treatment suppressed TNF-α-induced p65-NFκB expression and activation as well as production of IL-6 and IL-8 in HTC-116 cells. The inhibitory effects of Morin were abrogated by C/EBPβ-induced upregulation of p65-NFκB. Morin had inhibitory effects on human colorectal cancer both and . The antitumor functions of Morin in human colorectal cancer cells might be partially due to inhibition of NF-κB signaling.
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