Abstract
Photodynamic Therapy (PDT) is a therapeutic modality used for several malignant and
premalignant skin disorders, including Bowen's disease skin cancers and Superficial Basal Cell Carcinoma
(BCC). Several photosensitizers (PSs) have been explored for tumor destruction of skin
cancers, after their activation by a light source of appropriate wavelength. Topical release of PSs
avoids prolonged photosensitization reactions associated with systemic administration; however,
its clinical usefulness is influenced by its poor tissue penetration and the stability of the active
agent. Nanotechnology-based drug delivery systems are promising tool to enhance the efficiency
for PDT of cancer. This review focuses on PSs encapsulated in nanocarriers explored for PDT of
skin tumors.
Keywords:
Photodynamic Therapy, skin cancers, nanotechnology, topical delivery, nanocarriers, photosensitizers.
Graphical Abstract
[6]
Haddadi A, Madiyalakan R, Woo T. Quest Pharmatech Inc, assignee. Polymeric nanoparticles for photosensitizers. US patent US 8,916,205, 2014.
[9]
Ng KW, Lau WM. Skin deep: the basics of human skin structure and drug penetration.Percutaneous penetration enhancers chemical methods in penetration enhancement. Heidelberg 2015; pp. 3-11.
[38]
Donnelly RF, McCarron PA, Woolfson DA. Derivatives of 5-aminolevulinic acid for photodynamic therapy. Perspect Medicin Chem 2007.
[41]
Wölfle U, Seelinger G, Schempp CM. Topical application of St. Johnʼs wort (Hypericum perforatum). Planta med 2014; 80(02/03): 109-20.
[42]
Maduray K, Davids LM. The anticancer activity of hypericin in photodynamic therapy. J Bioanal Biomed 2011.
[88]
Ma X, Qu Q, Zhao Y. Targeted delivery of 5-aminolevulinic acid by multifunctional hollow mesoporous silica nanoparticles for photodynamic skin cancer therapy. ACS Appl Mater Interfaces 2015; 7(20): 10671-6.
[110]
de Salis GV, Praça FS, de Araújo MM, Eloy JO, Medina WS. Lipid-based nanocarriers improved ZnPcSO4 cellular uptake in human keratinocytes for use in topical photodynamic therapy. Indian J Med Res Pharm Sci 2017; 4(5): 23-32.