alexa Sulphamoylated estradiol analogue induces antiproliferative activity and apoptosis in breast cell lines
Toxicology

Toxicology

Journal of Clinical Toxicology

Author(s): Michelle Visagie, Thandi Mqoco, Anna Joubert

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Research into potential anticancer agents has shown that 2-methoxyestradiol exerts antiproliferative activity in vitro and in vivo in an estrogen receptor-independent manner. Due to its limited biological accessibility and rapid metabolic degradation, several new analogues have been developed in recent years. This study investigated the in vitro effects of a novel in silicodesigned compound (C16) in an estrogen receptor-positive breast adenocarcinoma epithelial cell line (MCF-7), an estrogen receptor-negative breast adenocarcinoma epithelial cell line (MDA-MB-231) and a nontumorigenic breast cell line (MCF-12A). Light microscopy revealed decreased cell density, cells blocked in metaphase and the presence of apoptotic characteristics in all three cell lines after exposure to C16 for 24 h. Polarizationoptical transmitted light differential interference contrast revealed the presence of several rounded cells and decreased cell density. The xCELLigence real-time label-independent approach revealed that C16 exerted antiproliferative activity. Significant inhibition of cell growth was demonstrated after 24 h of exposure to 0.2 μM C16 in all three cell lines. However, the non-tumorigenic MCF-12A cell line recovered extremely well after 48 h when compared to the tumorigenic cell lines. This indicates that C16 acts as an antiproliferative agent, possesses antimitotic activity and induces apoptosis in vitro. These features warrant further investigation.

This article was published in Cellular & Molecular Biology Letters and referenced in Journal of Clinical Toxicology

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