RPF101, a new capsaicin-like analogue, disrupts the microtubule network accompanied by arrest in the G2/M phase, inducing apoptosis and mitotic catastrophe in the MCF-7 breast cancer cells.

Abstract:

:Breast cancer is the world's leading cause of death among women. This situation imposes an urgent development of more selective and less toxic agents. The use of natural molecular fingerprints as sources for new bioactive chemical entities has proven to be a quite promising and efficient method. Capsaicin, which is the primary pungent compound in red peppers, was reported to selectively inhibit the growth of a variety tumor cell lines. Here, we report for the first time a novel synthetic capsaicin-like analogue, RPF101, which presents a high antitumor activity on MCF-7 cell line, inducing arrest of the cell cycle at the G2/M phase through a disruption of the microtubule network. Furthermore, it causes cellular morphologic changes characteristic of apoptosis and a decrease of Δψm. Molecular modeling studies corroborated the biological findings and suggested that RPF101, besides being a more reactive molecule towards its target, may also present a better pharmacokinetic profile than capsaicin. All these findings support the fact that RPF101 is a promising anticancer agent.

journal_name

Toxicol Appl Pharmacol

authors

de-Sá-Júnior PL,Pasqualoto KF,Ferreira AK,Tavares MT,Damião MC,de Azevedo RA,Câmara DA,Pereira A,de Souza DM,Parise Filho R

doi

10.1016/j.taap.2012.11.029

subject

Has Abstract

pub_date

2013-02-01 00:00:00

pages

385-98

issue

3

eissn

0041-008X

issn

1096-0333

pii

S0041-008X(12)00518-2

journal_volume

266

pub_type

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