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An In-House-Built and Light-Emitting-Diode-Based Photodynamic Therapy Device for Enhancing Verteporfin Cytotoxicity in a 2D Cell Culture Model
Published on: January 13, 2023
Advances in photodynamic therapy assisted by electroporation
Malgorzata Kotulska1, Julita Kulbacka, Jolanta Saczko
1Institute of Biomedical Engineering and Instrumentation, Wroclaw University of Technology, 50-370 Wroclaw, Poland. malgorzata.kotulska@pwr.wroc.pl
Current Drug Metabolism
|November 3, 2012
Summary
Photodynamic therapy (PDT) uses photosensitizers, light, and oxygen to target cancer cells. Combining PDT with electroporation (EP) enhances drug delivery and cancer cell destruction, improving treatment efficacy.
Area of Science:
- Oncology
- Biomedical Engineering
- Photochemistry
Background:
- Photodynamic therapy (PDT) is a low-invasive cancer treatment utilizing photosensitizers, light, and oxygen to generate reactive oxygen species (ROS) for tumor cell damage.
- Effective PDT relies on selective photosensitizer uptake by cancer cells and targeted light irradiation.
- Efficient intracellular drug accumulation is crucial for PDT efficacy, influencing cellular effects.
Purpose of the Study:
- To review the effects of PDT and electrophotodynamic therapy (EPDT) on both carcinoma and healthy cells.
- To compare the efficacy of different photosensitizing agents in enhancing cytotoxicity and selectivity.
- To evaluate the additional benefits of electroporation (EP) in augmenting PDT outcomes.
Main Methods:
- In vitro and in vivo studies were conducted to assess the impact of PDT and EPDT.
- Electroporation (EP) was applied to enhance photosensitizer transport across cell membranes via transient nanopores.
- Comparative analysis of various photosensitizers was performed to determine their effectiveness in EPDT.
Main Results:
- EP significantly augments photosensitizer transport and intracellular accumulation, enhancing therapeutic efficacy.
- EP combined with PDT (EPDT) demonstrated increased cytotoxicity and selectivity towards carcinoma cells compared to PDT alone.
- EP can trigger additional cellular effects, potentially improving tumor destruction and reducing side effects.
Conclusions:
- Electroporation is a promising strategy to enhance the effectiveness of photodynamic therapy for cancer treatment.
- EPDT offers improved cancer cell targeting and destruction, with potential for greater selectivity than conventional PDT.
- Further research into drug selection and optimization of EP parameters can maximize the benefits of EPDT.
