Apoptosis Induced by Photodynamic Therapy in Brain Tissue
Author Information
Author(s): Lilge L, Portnoy M, Wilson B C
Primary Institution: Photonics Research Ontario, Department of Medical Biophysics and Ontario Cancer Institute, University of Toronto
Hypothesis
The study evaluates the apoptotic response of normal brain and intracranial VX2 tumour tissue following photodynamic therapy using different photosensitizers.
Conclusion
The study found that photodynamic therapy produces a minimal and localized apoptotic effect in brain tissues, depending on the photosensitizer used.
Supporting Evidence
- The study evaluated the apoptotic response of brain and tumour tissue following photodynamic therapy.
- Different photosensitizers were tested for their ability to induce apoptosis.
- The incidence of apoptosis was confirmed by histopathology.
- At 24 hours post-treatment, one photosensitizer did not cause detectable apoptosis.
Takeaway
This study looked at how a special light treatment can make brain cells die, and it found that different treatments work differently.
Methodology
The study used a TUNEL assay and confocal laser scanning microscopy to evaluate apoptosis in brain tissues after photodynamic therapy.
Digital Object Identifier (DOI)
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