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Nanoparticle-based photodynamic therapy on non-melanoma skin cancer

Abstract: There are several advantages of Photodynamic Therapy (PDT) for nonmelanoma skin cancer treatment compared to conventional treatment techniques such as surgery, radiotherapy or chemotherapy. Among these advantages its noninvasive nature, the use of non ionizing radiation and its high selectivity can be mentioned. Despite all these advantages, the therapeutic efficiency of the current clinical protocol is not complete in all the patients and depends on the type of pathology. An adequate dosimetry is needed in order to personalize the protocol. There are strategies that try to overcome the current PDT shortcomings, such as the improvement of the photosensitizer accumulation in the target tissue, optical radiation distribution optimization or photochemical reactions maximization. These strategies can be further complemented by the use of nanostructures with conventional PDT. Customized dosimetry for nanoparticle-based PDT requires models in order to adjust parameters of different nature to get an optimal tumor removal. In this work, a predictive model of nanoparticle-based PDT is proposed and analyzed. Dosimetry in nanoparticle-based PDT is going to be influenced by photosensitizer-nanoparticle distribution in the malignant tissue, its influence in the optical radiation distribution and the subsequent photochemical reactions. Nanoparticles are considered as photosensitizer carriers on several types of non-melanoma skin cancer. Shielding effects are taken into account. The results allow to compare the estimated treatment outcome with and without nanoparticles.

Other conference communications or articles related to authors from the University of Cantabria

 Authorship: Fanjul-Vélez F., Arce-Diego J.,

 Congress: Optical Methods for Tumor Treatment and Detection: Mechanisms and Techniques in Photodynamic Therapy (27ª : 2018 : San Francisco, California)

 Publisher: SPIE Society of Photo-Optical Instrumentation Engineers

 Publication date: 01/02/2018

 No. of pages: 6

 Publication type: Conference object

 DOI: 10.1117/12.2290145

 ISSN: 0277-786X,1996-756X

 Spanish project: MAT2015-69508-P

 Publication Url: