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Related Experiment Videos

A modified method for experimental candidosis in mice avoiding lethality.

H Hänel1, W Raether, M Uphoff

  • 1Hoechst AG, Frankfurt/Main-Höchst, Germany.

Mycoses
|March 1, 1992
PubMed
Summary
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This study presents a new mouse model for evaluating antifungal drugs against Candida albicans. The model uses a specific strain to assess drug efficacy without causing excessive animal suffering, aiding in the discovery of systemic antifungals.

Area of Science:

  • Medical Mycology
  • Infectious Diseases
  • Pharmacology

Background:

  • Candida albicans is a significant opportunistic fungal pathogen.
  • Developing effective systemic antifungal agents is crucial for treating invasive candidiasis.
  • Existing animal models for antifungal drug screening often involve high mortality rates.

Purpose of the Study:

  • To develop and validate a novel mouse model for screening systemic antifungal agents.
  • To utilize a specific Candida albicans strain with moderate phospholipase B activity for infection modeling.
  • To establish a screening approach that prioritizes reduced animal distress and avoids early lethality.

Main Methods:

  • Selection of one Candida albicans strain (352) from 150 isolates.
  • Intravenous inoculation of mice with 6 x 10(5) CFU of strain 352.

Related Experiment Videos

  • Assessment of fungal burden in kidneys at day 5 post-infection.
  • Evaluation of fungistatic and fungicidal properties of antifungal agents through extended observation periods.

    • Main Results:

    • The selected Candida albicans strain caused a mild infection with minimal animal suffering over a 6-day period.
    • Kidney fungal counts at day 5 provided an initial indicator of fungistatic drug activity.
    • The model allows for subsequent experiments to determine fungicidal properties of promising compounds.

    Conclusions:

    • A validated mouse model for screening systemic antifungal agents has been established.
    • This model enables efficient evaluation of antifungal drug efficacy by minimizing animal mortality in initial screenings.
    • The approach facilitates the identification of potential drug candidates for invasive fungal infections.