Modern Photodynamic Glioblastoma Therapy Using Curcumin- or Parietin-Loaded Lipid Nanoparticles in a CAM Model Study

Area of Science:

• Nanomedicine
• Photodynamic Therapy
• Cancer Research

Background:

• Glioblastoma is a challenging brain cancer with limited treatment options.
• Photodynamic therapy (PDT) offers a light-mediated approach to cancer treatment.
• Nanoscale drug delivery systems can enhance PDT efficacy.

Purpose of the Study:

• To develop and evaluate natural photosensitizer-loaded lipid nanoparticles for glioblastoma treatment.
• To assess the in vitro and in vivo efficacy of this nanomedicine-based PDT approach.
• To investigate the impact on tumor viability, growth, and angiogenesis using the chorioallantois membrane (CAM) model.

Main Methods:

• Lipid nanoparticles loaded with curcumin or parietin were prepared using dual asymmetric centrifugation.
• Physicochemical characterization included dynamic light scattering, laser Doppler velocimetry, and atomic force microscopy.
• In vitro and in vivo evaluations were conducted on U87 glioblastoma xenografts on the CAM model, with imaging and histological analyses.

Main Results:

• Lipid nanoparticles demonstrated favorable physicochemical properties.
• In vitro studies confirmed cellular uptake, safety, and efficacy.
• In vivo studies on the CAM model showed reduced glioblastoma xenograft viability, growth, and angiogenesis following PDT with nanoparticles.

Conclusions:

• Natural photosensitizer-loaded lipid nanoparticles are a promising strategy for glioblastoma photodynamic therapy.
• The CAM model provides a suitable platform for evaluating nanomedicine-based cancer therapies.
• This approach holds potential for improving glioblastoma treatment outcomes by targeting tumor cells and vasculature.