Editorial: Photodynamic Therapy (3rd Edition)

Photodynamic therapy (PDT) was first demonstrated in 1903 by Von Tappeiner and Jesionek, combining light therapy with a photosensitizer and oxygen. PDT is widely used in medical treatments for various human disorders, producing reactive oxygen species that destroy oncological tissue and pathogens. Recent studies show that mild PDT can also have beneficial effects, such as wound healing, stress and pathogen resistance, and extended lifespan in animal models. This editorial provides an overview of “Photodynamic Therapy (3rd Edition)”, published in Biomedicine, highlighting recent contributions and advancements in PDT.