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Galinari CB, Conrado PCV, Arita GS, Mosca VAB, Melo RC, Bianchi TDP, Faria DR, Sakita KM, Malacarne LC, Gonçalves RS, Pereira PCDS, Cesar GB, Caetano W, de Souza M, da Silva Palácios R, Baesso ML, Svidzinski TIE, Cotica ÉSK, Bonfim-Mendonça PDS. Nanoencapsulated hypericin in P-123 associated with photodynamic therapy for the treatment of dermatophytosis. J Photochem Photobiol B 2020; 215:112103. [PMID: 33383558 DOI: 10.1016/j.jphotobiol.2020.112103] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 12/08/2020] [Accepted: 12/11/2020] [Indexed: 12/26/2022]
Abstract
The antifungal application of photodynamic therapy (PDT) has been widely explored. According to superficial nature of tinea capitis and the facility of application of light sources, the use of nanoencapsulated hypericin in P-123 associated with PDT (P123-Hy-PDT) has been a poweful tool to treat this pathology. Thus, the aim of this study was to evaluate the efficiency of P123-Hy-PDT against planktonic cells and in a murine model of dermatophytosis caused by Microsporum canis. In vitro antifungal susceptibility and in vivo efficiency tests were performed, including a skin toxicity assay, analysis of clinical signs by evaluating score, and photoacoustic spectroscopy. In addition, tissue analyses by histopathology and levels of pro-inflammatory cytokines, such as quantitative and qualitative antifungal assays, were employed. The in vitro assays demonstrated antifungal susceptibility with 6.25 and 12.5 μmol/L P123-Hy-PDI; these experiments are the first that have used this treatment of animals. P123-Hyp-mediated PDT showed neither skin nor biochemical alteration in vivo; it was safe for dermatophytosis treatment. Additionally, the treatment revealed rapid improvement in clinical signs at the site of infection after only three treatment sessions, with a clinical score confirmed by photoacoustic spectroscopy. The mycological reduction occurred after six treatment sessions, with a statistically significant decrease compared with untreated infected animals. These findings showed that P123-Hy-PDT restored tissue damage caused by infection, a phenomenon confirmed by histopathological analysis and proinflammatory cytokine levels. Our results reveal for the first time that P123-Hy-PDT is a promising treatment for tinea capitis and tinea corporis caused by M. canis, because it showed rapid clinical improvement and mycological reduction without causing toxicity.
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Affiliation(s)
- Camila Barros Galinari
- Department of Analysis Clinics & Biomedicine, State University of Maringá, Paraná, Brazil
| | | | - Glaucia Sayuri Arita
- Department of Analysis Clinics & Biomedicine, State University of Maringá, Paraná, Brazil
| | | | - Raquel Cabral Melo
- Department of Analysis Clinics & Biomedicine, State University of Maringá, Paraná, Brazil
| | - Tiago de Paula Bianchi
- Department of Analysis Clinics & Biomedicine, State University of Maringá, Paraná, Brazil
| | - Daniella Renata Faria
- Department of Analysis Clinics & Biomedicine, State University of Maringá, Paraná, Brazil
| | - Karina Mayumi Sakita
- Department of Analysis Clinics & Biomedicine, State University of Maringá, Paraná, Brazil
| | | | | | | | | | - Wilker Caetano
- Department of Chemistry, State University of Maringá, Paraná, Brazil
| | - Monique de Souza
- Department of Physics, State University of Maringá, Paraná, Brazil
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