Photodynamic therapy with topical photosensitizers in mucosal and semimucosal areas: review from a dermatologic perspective

Photodynamic therapy (PDT) has been defined a “2-step” procedure based on the interaction between a Photo Sensitizer (PS), a light source with a wavelength specific for that PS and environmental oxygen. PS, after being internalised into cells, activates in response to energy received from the light source and produces cytotoxic species in t he presence of oxygen. These radicals induce a plethora of biochemical intracellular processes that secondarily lead to cell death, either by apoptosis or by necrosis [1–3].
Source: Photodiagnosis and Photodynamic Therapy - Category: Laser Surgery Authors: Source Type: research