Apoptosis Induction of Human Cancer Cells by Polyphenolics from Sweetpotato (Ipomoea batatas L.) Leaves

摘要

Sweetpotato leaves (Ipomoea batatas L.) contain a high content of polyphenolics that consist of a caffeic acid (CA) and caffeoylquinic acid (CQA) derivatives with plural caffeoyl groups bound to quinic acid (QA) (1). Our previous report recently foundphysiological functions, like DPPH-radical scavenging activity, antimutagenicity, and diabetes treatment. In this study, we describe the effect of these CQA derivatives on human tumor cells.