I3C and ICZ inhibit migration by suppressing the EMT process and FAK expression in breast cancer cells

Area of Science:

• Biochemistry
• Molecular Biology
• Oncology

Background:

• Indole-3-carbinol (I3C) and indole[3,2-b] carbazole (ICZ) are bioactive compounds found in cruciferous vegetables.
• Previous research indicates I3C and ICZ possess anticancer properties against various cancer cell types.
• The impact of indole compounds on cancer cell migration and epithelial-to-mesenchymal transitions (EMT) remains incompletely understood.

Purpose of the Study:

• To investigate the effects of I3C and ICZ on the migration of breast cancer cells.
• To determine if I3C and ICZ influence the epithelial-to-mesenchymal transition (EMT) process in breast cancer cells.
• To explore the underlying molecular mechanisms by which I3C and ICZ affect cancer cell motility.

Main Methods:

• Utilized MCF-7 and MDA-MB231 breast cancer cell lines.
• Assessed cell migration using the monolayer scratch assay.
• Quantified changes in mRNA expression of key EMT markers (vimentin, E-cadherin) and focal adhesion kinase (FAK).
• Measured the activity of matrix metalloproteinases (MMP-2 and MMP-9).

Main Results:

• Pre-treatment with I3C and ICZ significantly inhibited breast cancer cell migration.
• No cytotoxic effects were observed at the tested concentrations.
• I3C and ICZ decreased vimentin and FAK mRNA expression while increasing E-cadherin expression, indicating EMT suppression.
• Reduced activity of MMP-2 and MMP-9 was observed following I3C and ICZ treatment.

Conclusions:

• I3C and ICZ effectively inhibit breast cancer cell migration.
• These indole compounds suppress cancer cell migration by inhibiting the EMT process and reducing MMP activity, partly through FAK repression.
• I3C and ICZ show potential as therapeutic or preventative agents against breast cancer metastasis.