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Updated: Mar 24, 2026
In Vivo Infection with Leishmania amazonensis to Evaluate Parasite Virulence in Mice
Published on: February 20, 2020
Study of Leishmania pathogenesis in mice: experimental considerations
Corinne Loeuillet1, Anne-Laure Bañuls1, Mallorie Hide2
1Maladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution et Contrôle (MIVEGEC), UMR IRD 224-CNRS 5290, Institut de Recherche pour le Développement (IRD), Centre National de la Recherche Scientifique (CNRS), Université de Montpellier, Montpellier, France.
Leishmaniases, neglected tropical diseases affecting 98 countries, present diverse clinical forms. Understanding host defense and parasite virulence mechanisms, influenced by experimental factors in animal models, is crucial for developing effective treatments.
Area of Science:
- Tropical medicine
- Parasitology
- Immunology
Background:
- Leishmaniases are neglected tropical diseases endemic in 98 countries.
- Characterized by virulent and asymptomatic Leishmania spp. strains, leading to a diverse clinical spectrum.
- Investigating host defense and parasite virulence is essential for effective control.
Purpose of the Study:
- To review the influence of experimental parameters on animal models of leishmaniasis.
- To provide an update on factors affecting cutaneous and visceral leishmaniasis models.
Main Methods:
- Literature review focusing on experimental parameters in leishmaniasis animal models.
- Analysis of factors influencing disease manifestation in cutaneous and visceral leishmaniasis.
Main Results:
- Mouse genetic background significantly impacts leishmaniasis outcomes.
- Parasite genotype, inoculation site, and dose affect disease progression.
- Phlebotomine saliva components can modulate host immune responses.
Conclusions:
- Experimental parameters critically influence leishmaniasis model outcomes.
- Standardization of animal models is necessary for reliable research.
- Further research is needed to optimize animal models for drug development.
