Photodynamic Therapy for Skin Cancer: Overcoming Challenges andExpanding Therapeutic Frontiers

Introduction: A combination of environmental variables, a genetic background, and exposure to sunlight is causing the rate of skin cancer to rise worldwide. The most often diagnosed cancers are non-melanoma skin cancers, especially cancers of the squamous cells (SCC) and basal cell carcinoma (BCC). Although aggressive and surgical therapies are successful, they frequently cause relapse, impairment in functioning, or scarring. A less intrusive option with good cosmetic results is photodynamic treatment (PDT), which uses a light-activated photosensitizer to generate reactive oxygen species (ROS). The purpose of this study is to provide an overview of the mechanisms, developments, efficacy in clinical settings, and constraints of PDT in the treatment of skin cancer. Methods: The databases PubMed, Scopus, Web of Science, and Google Scholar were used to do a narrative review of the literature. "Photodynamic therapy", "the skin cancer", photosensitizers", and "nanotechnology" were among the phrases used. To assess PDT mechanisms, pigment development, clinical outcomes, and new technical tactics, Englishlanguage peer-reviewed literature, research, and review studies were examined. Results: PDT offers superior cosmetic outcomes and selective tumor eradication for actinic keratosis, intermediate BCC, and initial SCC. Tumor hypoxia, uneven photosensitizer absorption, and limited penetration into the tissues are some of the associated limitations. The precision of therapy has been strengthened by recent developments in nanocarrier systems, advanced photosensitizers, and efficient light-delivery methods. In order to overcome resistance and improve medical response, mixed methods that incorporate PDT with immune therapy, chemotherapy, or biological strategies show possibility. Discussion: PDT's growing use in dermatological oncology has been reinforced by its tailored activity and advantageous aesthetic profile. Treatment of deeper or malignancies caused by still presents difficulties, necessitating the use of improved exposure systems, near-infrared photosensitizers, and nanotechnology. Multiple therapies may improve effectiveness even more and lower the chance of reappearance. Conclusion: PDT is a cutting-edge, successful treatment for superficial skin cancers. It is anticipated that collaborative treatment approaches and technological advancements would increase its practical utility and enhance patient results and quality of life.