Surface-Modified Superparamagnetic Iron Oxide Nanoparticles (SPIONs) in a New Perspective for Prostate Cancer...

Area of Science:

• Biomaterials Science
• Nanotechnology
• Oncology

Background:

• Prostate cancer metastasis is driven by circulating tumor cells (CTCs).
• Superparamagnetic Iron Oxide Nanoparticles (SPIONs) are explored for biomedical applications, including CTC capture and drug delivery.
• Chitosan derivatives offer versatile stabilization for nanoparticles.

Purpose of the Study:

• To investigate the impact of SPIONs stabilized with cationic (CCh) and anionic (ACh) chitosan on prostate cancer cell lines.
• To evaluate the effect of these SPIONs on cell signaling pathways involved in epithelial-mesenchymal transition (EMT).
• To assess the potential of SPIONs as drug carriers for prostate cancer therapy.

Main Methods:

• Preparation and characterization of SPION/CCh and SPION/ACh nanoparticles.
• Assessment of colloidal stability and magnetic properties using DLS, fluorescence spectroscopy, Mössbauer spectroscopy, and magnetometry.
• Evaluation of SPIONs' impact on prostate cancer cell lines (PC-3, LNCaP, DU 145) and EMT-related proteins.

Main Results:

• SPION nanoparticles were spherical, stable, and possessed excellent magnetic properties.
• SPIONs inhibited prostate cancer cell migration and increased E-cadherin expression, suggesting a protective effect.
• Nanoparticles were internalized by and adsorbed onto prostate cancer cells, indicating potential as drug carriers.

Conclusions:

• SPIONs stabilized with chitosan derivatives demonstrate potential for inhibiting prostate cancer progression.
• These SPIONs can be effectively internalized by prostate cancer cells.
• Non-toxic concentrations of these SPIONs can serve as carriers for active substances in prostate cancer treatment.