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Molecules 2015, 20(7), 12576-12589;

CAPE Analogs Induce Growth Arrest and Apoptosis in Breast Cancer Cells

Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB E1A 3E9, Canada
Atlantic Cancer Research Institute, Moncton, NB E1C 8X3, Canada
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Academic Editors: Jean Jacques Vanden Eynde and Annie Mayence
Received: 28 May 2015 / Revised: 4 July 2015 / Accepted: 7 July 2015 / Published: 10 July 2015
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Breast cancer is the second leading cause of death amongst women worldwide. As a result, many have turned their attention to new alternative approaches to treat this disease. Caffeic acid phenylethyl ester (CAPE), a well-known active compound from bee propolis, has been previously identified as a strong antioxidant, anti-inflammatory, antiviral and anticancer molecule. In fact, CAPE is well documented as inducing cell death by inhibiting NFκB and by inducing pro-apoptotic pathways (i.e., p53). With the objective of developing stronger anticancer compounds, we studied 18 recently described CAPE derivatives for their ability to induce apoptosis in breast cancer cell lines. Five of the said compounds, including CAPE, were selected and subsequently characterised for their anticancer mechanism of action. We validated that CAPE is a potent inducer of caspase-dependent apoptosis. Interestingly, some newly synthesized CAPE derivatives also showed greater cell death activity than the lead CAPE structure. Similarly to CAPE, analog compounds elicited p53 activation. Interestingly, one compound in particular, analog 10, induced apoptosis in a p53-mutated cell line. These results suggest that our new CAPE analog compounds may display the capacity to induce breast cancer apoptosis in a p53-dependent and/or independent manner. These CAPE analogs could thus provide new therapeutic approaches for patients with varying genotypic signatures (such as p53 mutations) in a more specific and targeted fashion. View Full-Text
Keywords: breast cancer; CAPE; apoptosis; NFκB; p53; caspase breast cancer; CAPE; apoptosis; NFκB; p53; caspase

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Beauregard, A.-P.; Harquail, J.; Lassalle-Claux, G.; Belbraouet, M.; Jean-Francois, J.; Touaibia, M.; Robichaud, G.A. CAPE Analogs Induce Growth Arrest and Apoptosis in Breast Cancer Cells. Molecules 2015, 20, 12576-12589.

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