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Engineered Whey Protein Nanoparticles for Intracellular Drug Delivery
Veronica Torresan1, Rebecca Busetto1, Estelle Audoux2
1Department of Industrial Engineering, University of Padova and INSTM, via Marzolo 9, Padova 35131, Italy.
ACS Omega
|August 18, 2025
Summary
Whey protein nanoparticles offer a sustainable drug delivery system. These biocompatible nanoparticles efficiently encapsulate drugs, showing targeted cancer cell cytotoxicity and reduced side effects.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Drug Delivery Systems
Background:
- Protein-based nanoparticles are advanced drug delivery platforms enhancing therapeutic agent solubility, stability, and bioavailability.
- They offer high biocompatibility and biodegradability, minimizing side effects and toxicity.
- Whey proteins, a byproduct of cheese production, present a sustainable source for engineered nanoparticles.
Purpose of the Study:
- To engineer and characterize whey protein-based nanoparticles (Matrix and Core-shell) for efficient drug delivery.
- To evaluate the cellular uptake, cytotoxicity, and proliferation effects of these nanoparticles using curcumin as a model drug.
- To assess the potential of whey protein nanoparticles for targeted cancer therapy.
Main Methods:
- Synthesis of two types of whey protein nanoparticles: Matrix and Core-shell.
- Characterization of nanoparticle properties.
- In vitro evaluation of cellular uptake, cytotoxicity, and cell proliferation using tumor and healthy cells.
- Curcumin extract utilized as a model anticancer drug.
Main Results:
- Both Matrix and Core-shell whey protein nanoparticles demonstrated efficient drug encapsulation.
- Nanoparticles exhibited effective cellular uptake in tested cell lines.
- Enhanced cytotoxicity was observed in tumor cells compared to healthy cells, particularly at higher concentrations.
- Whey protein nanoparticles showed potential for targeted delivery of therapeutic agents.
Conclusions:
- Whey protein-based nanoparticles are a viable and sustainable platform for drug delivery, especially in cancer therapy.
- These nanoparticles enhance drug efficacy while potentially reducing side effects.
- Further research into whey protein nanoparticles could lead to innovative targeted cancer treatments.

