Fungal infection models: Current progress of ex vivo methods

Priscilla Maciel Quatrin1, Daiane Flores Dalla Lana2, Taís Fernanda Andrzejewski Kaminski2

  • 1Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.

Mycoses
|July 5, 2019
PubMed

Insights

Alternative ex vivo models offer a crucial alternative for antifungal drug evaluation, bypassing ethical hurdles. This review critically analyzes these models for topical and systemic antifungal candidates, comparing them to traditional in vivo methods.

Area of Science:

  • Mycology
  • Pharmacology
  • Biotechnology

Background:

  • Ex vivo models are vital for drug development, especially when ethical approvals for in vivo studies are complex.
  • Existing literature shows diverse ex vivo fungal infection models for antifungal evaluation, but lacks consensus on optimal choices.
  • Models for nail, cornea, dentinal tubule, and skin fungal infections have been explored, presenting varied results.

Purpose of the Study:

  • To critically analyze prominent ex vivo fungal infection models for evaluating new antifungal drug candidates.
  • To compare the advantages and disadvantages of various ex vivo models against traditional in vivo preclinical models.
  • To provide guidance on selecting appropriate ex vivo models based on infection type for antifungal drug screening.

Main Methods:

  • Literature review and critical analysis of published ex vivo fungal infection models.
  • Comparative assessment of ex vivo models versus in vivo models for antifungal drug efficacy testing.
  • Synthesis of findings on counterpoints and concordances among different ex vivo models.

Main Results:

  • Ex vivo models provide a viable alternative to in vivo studies, often circumventing ethical committee approvals.
  • A wide array of ex vivo models exist for simulating fungal infections in nails, corneas, skin, and dentinal tubules.
  • No established consensus exists on the most suitable ex vivo model for specific fungal infection types.

Conclusions:

  • Ex vivo models are essential tools for antifungal drug discovery and development.
  • A critical evaluation of ex vivo models is needed to establish best practices for antifungal candidate assessment.
  • Further research and consensus-building are required to optimize the use of ex vivo models in antifungal research.

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