Efficacy of ginsenoside Rg3 nanoparticles against Ehrlich solid tumor growth in mice

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Cancer Research

Background:

• Solid tumors present significant clinical challenges due to poor surgical resectability and resistance to conventional therapies like radiation and chemotherapy.
• Ginsenoside Rg3 is a known compound with potential antitumor properties, but its efficacy can be limited by formulation and delivery.
• Developing novel drug delivery systems is crucial for improving the therapeutic outcomes of existing compounds against challenging cancers.

Purpose of the Study:

• To fabricate ginsenoside Rg3 nanoparticles (Rg3-NPs) using whey protein isolates (WPI), maltodextrin (MD), and gum Arabic (GA).
• To evaluate the in vivo antitumor efficacy of Rg3-NPs against Ehrlich solid tumors (EST) in a mouse model.
• To compare the therapeutic effects of Rg3-NPs with native Rg3 and assess the dose-dependent response.

Main Methods:

• Rg3-NPs were synthesized using WPI, MD, and GA, characterized for particle size and zeta potential.
• Ehrlich solid tumors were induced in mice by injecting Ehrlich ascites cells.
• Mice were treated with native Rg3 or varying doses of Rg3-NPs, and tumor growth, biochemical markers (AFP, Casp3, TNF-α, MMP-9, VEGF, MDA, SOD, GPx), and DNA damage were assessed.

Main Results:

• Synthesized Rg3-NPs exhibited a spherical shape with an average particle size of 20 nm and a zeta potential of -5.58 mV.
• Treatment with Rg3-NPs significantly reduced tumor weight and size compared to native Rg3.
• Rg3-NPs demonstrated a dose-dependent improvement in biochemical parameters and reduced DNA damage, indicating enhanced antitumor activity and protective effects against EST.

Conclusions:

• Fabrication of Rg3-NPs using WPI, MD, and GA significantly enhances the antitumor efficacy against Ehrlich solid tumors.
• Rg3-NPs show superior therapeutic potential compared to native Rg3, likely due to improved delivery and possibly synergistic effects with the formulation components.
• These findings suggest that Rg3-NPs represent a promising nanomedicine approach for managing solid tumors, warranting further investigation for clinical applications.