In vitro photodynamic inactivation of Sporothrix schenckii complex species

Med Mycol. 2014 Oct;52(7):770-3. doi: 10.1093/mmy/myu041. Epub 2014 Jul 21.

Abstract

Photodynamic therapy has been applied successfully against cutaneous and subcutaneous mycoses. We applied methylene blue as a photosensitizing agent and light emitting diode (InGaAlP) against Sporothrix schenckii complex species in an in vitro assay. The viability of the conidia was determined by counting colony-forming units. Methylene blue in conjunction with laser irradiation was able to inhibit the growth of all tested samples. The in vitro inhibition of Sporothrix spp. isolates by laser light deserves in vivo experimental and clinical studies since it may be a promising treatment for cutaneous and subcutaneous sporotrichosis.

Keywords: PDT; laser; methylene blue; mycosis; sporotrichosis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Colony Count, Microbial
  • Disinfection / methods*
  • Humans
  • Lasers*
  • Methylene Blue / metabolism
  • Microbial Viability / drug effects*
  • Microbial Viability / radiation effects*
  • Photochemotherapy / methods
  • Photosensitizing Agents / metabolism*
  • Spores, Fungal / drug effects
  • Spores, Fungal / radiation effects
  • Sporothrix / drug effects*
  • Sporothrix / radiation effects*

Substances

  • Photosensitizing Agents
  • Methylene Blue