Abstract
In order to overcome the insolution and low bioavailability of the vitexin in vivo, β-cyclodextrin-vitexin (β-CD-vitexin) microspheres were prepared, and their effects on the proliferation of SW480 cells were observed. Scanning electron microscopy, ultraviolet spectrum, Fourier transform infrared spectroscopy, and release rate analysis identified the formation of β-CD-vitexin microspheres. MTT assay detected the effect of β-CD-vitexin microspheres on tumor cell proliferation at 6, 12, 24, and 48 h. Fluorescence microscopy and flow cytometry were used to observe the effect of β-CD-vitexin microspheres on the apoptosis of SW480 cells. The mRNA expression of the p53 gene was measured by qPCR. β-CD-vitexin microspheres were successfully prepared. SW480 cell proliferation was inhibited by 0.1, 0.2, and 0.4 mg/mL of β-CD-vitexin microspheres in a dose- and time-dependent manner, and the mechanism of proliferation inhibition was related to cell apoptosis caused by the upregulated expression of p53 gene. The preparation of β-CD-vitexin sustained release microspheres is feasible, and β-CDvitexin microspheres have potential anti-colorectal cancer value.
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