Gypenoside-Induced Apoptosis via the PI3K/AKT/mTOR Signaling Pathway in Bladder Cancer

Area of Science:

• Herbal Medicine
• Pharmacology
• Oncology

Background:

• Gynostemma pentaphyllum (G. pentaphyllum) is a traditional herb with known antitumor properties.
• Gypenosides are the primary active compounds responsible for these effects.
• Previous research has not investigated gypenosides for bladder cancer treatment.

Purpose of the Study:

• To explore the molecular mechanisms of gypenosides against bladder cancer.
• To identify potential therapeutic targets and bioactive components.
• To validate the antitumor effects of gypenosides experimentally.

Main Methods:

• Network pharmacology to identify targets and pathways.
• Molecular docking to assess compound-target interactions.
• In vitro assays (CCK8, colony formation, cell cycle, apoptosis) and in vivo mouse xenograft model.

Main Results:

• Identified 10 bioactive ingredients and 163 gene targets for gypenosides.
• Network analysis suggested VEGFA, STAT3, and PI3KCA as key targets.
• The phosphatidylinositol-3-kinase (PI3K)/AKT/mammalian target of rapamycin (mTOR) pathway was identified as crucial.
• Gypenosides induced apoptosis in bladder cancer cells by inactivating the PI3K/AKT/mTOR pathway.
• Significant inhibition of bladder cancer growth was observed in vivo.

Conclusions:

• Gypenosides possess significant antitumor activity against bladder cancer.
• The mechanism involves the induction of apoptosis via the PI3K/AKT/mTOR signaling pathway.
• Gypenosides represent a potential therapeutic agent for bladder cancer treatment.