Ampelopsins A and C Induce Apoptosis and Metastasis through Downregulating AxL, TYRO3, and FYN Expressions in...

Area of Science:

• Phytochemistry
• Cancer Biology
• Pharmacology

Background:

• Resveratrol oligostilbenes, such as ampelopsins A and C, are natural compounds with largely unknown roles in cancer development.
• Breast cancer metastasis remains a significant challenge in oncology, necessitating the identification of novel therapeutic strategies.

Purpose of the Study:

• To evaluate the antimetastatic and apoptosis-inducing properties of ampelopsins A and C in MDA-MB-231 breast cancer cells.
• To investigate the molecular mechanisms underlying the effects of ampelopsins A and C on cancer cell signaling pathways.

Main Methods:

• Cell viability assays (IC50 determination) were performed on MDA-MB-231 cells treated with ampelopsins A and C.
• Cell metastasis assays were conducted at 24 hours post-treatment.
• A human phosphoreceptor tyrosine kinase array was used to analyze protein phosphorylation changes.
• Combination studies with luteolin and chrysin were performed to assess synergistic antiproliferation effects.

Main Results:

• Ampelopsins A and C exhibited varying IC50 values against MDA-MB-231 cells at 72 hours (38.75 ± 4.61 μM and 2.71 ± 0.21 μM, respectively).
• Both compounds significantly decreased MDA-MB-231 cell metastasis at 24 hours.
• Ampelopsin C notably reduced the phosphorylation of key proteins including AXL, TYRO3 (Dtk), EphA2, EphA6, Fyn, Hck, and SRMS.
• The antiproliferation effects of ampelopsin C were potentiated when combined with luteolin and chrysin.

Conclusions:

• Ampelopsins A and C, isolated from Vitis thunbergii, demonstrate significant antimetastatic properties against breast cancer cells.
• These compounds induce apoptosis and modulate critical signaling pathways involved in cancer progression.
• Ampelopsins A and C represent promising novel therapeutic agents and potential targets for breast cancer treatment.