Abstract
Toona sinensis is a traditional Chinese medicine belonging to the Meliaceae family. The aim of this study was to identify the potential compounds responsible for anticancer activity of T. sinensis. The EtOAc extracts of leaves and woods of T. sinensis inhibited cell proliferation and induced apoptosis in human leukemia HL-60 cells. Our phytochemical research of these extracts led to the isolation of various polyphenolic constituents. The chemical structures were determined by spectroscopic analyses. Among isolates, gallic acid and loropetalin D showed inhibition of cell proliferation and possible induction of apoptosis in these cells. Overall, our results revealed the importance of T. sinensis as a chemopreventive medicinal plant. In addition, an analysis of structure–activity relationship indicated that the number of galloyl groups affects their antileukemic potency.
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