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Multifunctional Nanoparticles as High-Efficient Targeted Hypericin System for Theranostic Melanoma
Flávia Amanda Pedroso de Morais1,2, Ana Carolina Vieira De Oliveira2, Rodolfo Bento Balbinot1
1Technological Innovation Laboratory in the Pharmaceuticals and Cosmetics Development, State University of Maringá, Maringá 87020-900, PR, Brazil.
Researchers developed a novel drug delivery system using F127 copolymer modified with biotin, spermine, and folic acid for photodynamic therapy (PDT). This system enhances hypericin delivery and photodynamic activity against B16F10 cancer cells.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Cancer Therapy
Background:
- Photodynamic therapy (PDT) is a promising cancer treatment modality.
- Developing effective drug delivery systems is crucial for enhancing PDT efficacy.
- B16F10 melanoma cells are a relevant model for studying cancer treatments.
Purpose of the Study:
- To synthesize and characterize a novel F127 copolymer-based drug delivery system.
- To investigate the influence of biotin, spermine, and folic acid modifications on the physicochemical properties of the F127 micelles.
- To evaluate the efficacy of hypericin-loaded modified micelles in photodynamic therapy against B16F10 cells.
Main Methods:
- Covalent linkage of biotin, spermine, and folic acid to F127 copolymer.
- Characterization using spectroscopy (1H NMR) and spectrophotometry (HABA/Avidin, fluorescamine assay).
- Assessment of physicochemical parameters: critical micelle concentration, critical micelle temperature, size, polydispersity, and zeta potential.
- In vitro photodynamic therapy assays using hypericin-loaded micelles against B16F10 cells.
Main Results:
- Successful synthesis of modified F127 copolymer micelles.
- Physicochemical properties (CMC, CMT, size, PDI, zeta potential) were influenced by binder hydrophobicity.
- Spermine-modified micelles exhibited improved physical and chemical stability.
- Enhanced hypericin uptake and potentiated photodynamic activity against B16F10 cells were observed.
Conclusions:
- The developed F127 copolymer-based drug delivery system effectively encapsulates hypericin for PDT.
- Modification with biotin, spermine, and folic acid enhances micelle stability and therapeutic efficacy.
- This novel system shows significant potential for improving PDT outcomes in B16F10 cancer treatment.
