4.6 Article

Epithelial-to-Mesenchymal Transition Is Not a Major Modulating Factor in the Cytotoxic Response to Natural Products in Cancer Cell Lines

Journal

MOLECULES
Volume 26, Issue 19, Pages -

Publisher

MDPI
DOI: 10.3390/molecules26195858

Keywords

natural products; cancer; chemotherapy resistance; epithelial-to-mesenchymal transition; mesenchymal-to-epithelial transition

Funding

  1. Research Fund of Istanbul University [ONAP 46784]
  2. Scientific and Technological Research Council of Turkey [TUBITAK-BIDEB 2211-E]

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This study investigated the use of eight natural compounds and two repurposed agents on cancer cells, with curcumin showing the most significant anti-cancer activity across different cell lines. While some natural products induced MET in cancer cells, the MET induction did not necessarily enhance chemosensitivity.
Numerous natural products exhibit antiproliferative activity against cancer cells by modulating various biological pathways. In this study, we investigated the potential use of eight natural compounds (apigenin, curcumin, epigallocatechin gallate, fisetin, forskolin, procyanidin B2, resveratrol, urolithin A) and two repurposed agents (fulvestrant and metformin) as chemotherapy enhancers and mesenchymal-to-epithelial (MET) inducers of cancer cells. Screening of these compounds in various colon, breast, and pancreatic cancer cell lines revealed anti-cancer activity for all compounds, with curcumin being the most effective among these in all cell lines. Although some of the natural products were able to induce MET in some cancer cell lines, the MET induction was not related to increased synergy with either 5-FU, irinotecan, gemcitabine, or gefitinib. When synergy was observed, for example with curcumin and irinotecan, this was unrelated to MET induction, as assessed by changes in E-cadherin and vimentin expression. Our results show that MET induction is compound and cell line specific, and that MET is not necessarily related to enhanced chemosensitivity.

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