Article Publish Status: FREE
Abstract Title:

Comparative cytotoxicity of artemisinin and cisplatin and their interactions with chlorogenic acids in MCF7 breast cancer cells.

Abstract Source:

ChemMedChem. 2014 Dec ;9(12):2791-7. Epub 2014 Sep 10. PMID: 25209896

Abstract Author(s):

John O Suberu, Isolda Romero-Canelón, Neil Sullivan, Alexei A Lapkin, Guy C Barker

Article Affiliation:

John O Suberu


In parts of Africa and Asia, self-medication with a hot water infusion of Artemisia annua (Artemisia tea) is a common practice for a number of ailments including malaria and cancer. In our earlier work, such an extract showed better potency than artemisinin alone against both chloroquine-sensitive and -resistant parasites. In this study, in vitro tests of the infusion in MCF7 cells showed high IC50 values (>200μM). The combination of artemisinin and 3-caffeoylquinic acid (3CA), two major components in the extract, was strongly antagonistic and gave a near total loss of cytotoxicity for artemisinin. We observed that the interaction of 3CAs with another cytotoxic compound, cisplatin, showed potentiation ofactivity by 2.5-fold. The chelation of cellular iron by 3CA is hypothesized as a possible explanation for the loss of artemisinin activity.

Study Type : In Vitro Study

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