[(+)-corynoline Regulates the Proliferation,Stemness and Apoptosis of Triple Negative Breast Cancer Cells]

Area of Science:

• Oncology
• Pharmacology
• Biochemistry

Background:

• Triple-negative breast cancer (TNBC) presents significant therapeutic challenges due to limited treatment options and high recurrence rates.
• Developing novel therapeutic agents with improved efficacy is crucial for managing TNBC.
• (+)-Corynoline is a natural compound with potential anti-cancer properties.

Purpose of the Study:

• To investigate the anti-cancer effects and underlying mechanisms of (+)-corynoline on MDA-MB-436 cells, a model for triple-negative breast cancer.
• To evaluate (+)-corynoline as a potential therapeutic agent for TNBC.

Main Methods:

• Cell viability and proliferation assessed using CCK-8 and colony formation assays.
• Apoptosis and cell migration/invasion evaluated via flow cytometry and Transwell assays.
• Protein expression analyzed by Western blotting; global gene expression profiling performed using RNA-Seq.

Main Results:

• (+)-Corynoline significantly inhibited proliferation and stemness of MDA-MB-436 cells.
• (+)-Corynoline treatment promoted apoptosis in MDA-MB-436 cells.
• Evidence suggests (+)-corynoline activates the oxidative phosphorylation pathway in TNBC cells.

Conclusions:

• (+)-Corynoline demonstrates potent inhibitory effects against triple-negative breast cancer cells.
• The findings support (+)-corynoline as a promising candidate for developing novel TNBC therapeutics.
• Activation of oxidative phosphorylation is a potential mechanism for (+)-corynoline's anti-cancer activity.