AB186 Inhibits Migration of Triple-Negative Breast Cancer Cells and Interacts with α-Tubulin.

Abstract

Breast cancer is one of the leading causes of cancer-related death among females worldwide. A major challenge is to develop innovative therapy in order to treat breast cancer subtypes resistant to current treatment. In the present study, we examined the effects of two Troglitazone derivatives Δ2-TGZ and AB186. Previous studies showed that both compounds induce apoptosis, nevertheless AB186 was a more potent agent. The kinetic of cellular events was investigated by real-time cell analysis system (RTCA) in MCF-7 (hormone dependent) and MDA-MB-231 (triple negative) breast cancer (TNBC) cells, followed by cell morphology analysis by immuno-localization. Both compounds induced a rapid modification of both impedance-based signals and cellular morphology. This process was associated with an inhibition of cell migration measured by wound healing and transwell assays in TNBC MDA-MB-231 and Hs578T cells. In order to identify cytoplasmic targets of AB186, we performed surface plasmon resonance (SPR) and pull-down analyses. Subsequently, 6 cytoskeleton components were identified as potential targets. We further validated α-tubulin as one of the direct targets of AB186. In conclusion, our results suggested that AB186 could be promising to develop novel therapeutic strategies to treat aggressive forms of breast cancer such as TNBC.

• Authors: Marine Geoffroy, Marine Lemesle, Alexandra Kleinclauss, Sabine Mazerbourg, Levy Batista, Muriel Barberi-Heyob, Thierry Bastogne, Wilfrid Boireau, Alain Rouleau, Dorian Dupommier, Michel Boisbrun, Corinne Comoy, Stéphane Flament, Isabelle Grillier-Vuissoz, Sandra Kuntz
• Journal: International journal of molecular sciences (Int J Mol Sci) Vol. 23 Issue 12 (Jun 20 2022) ISSN: 1422-0067 [Electronic] Switzerland
• PMID: 35743305 (Publication Type: Journal Article)

Chemical References

• Tubulin

Topics

• Apoptosis
• Cell Line, Tumor
• Cell Movement
• Cell Proliferation
• Female
• Humans
• Triple Negative Breast Neoplasms (metabolism)
• Tubulin