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Perspective on animal models: chronic intracellular infections
1Kuzell Institute for Arthritis and Infectious Diseases, California Pacific Medical Center, San Francisco, CA 94115, USA. Kiaid@cooper.cmpc.org
Summary
Researchers studied the Mycobacterium avium-Mycobacterium intracellulare complex (MAC) in beige mice to understand pathogenesis and develop treatments. Promising results in animal models may lead to human trials for this chronic infection.
Area of Science:
- Microbiology
- Immunology
- Infectious Diseases
Background:
- Systemic Mycobacterium avium-Mycobacterium intracellulare complex (MAC) infections cause chronic intracellular disease, primarily in immunocompromised individuals.
- Understanding MAC pathogenesis is crucial for developing effective treatments and prophylaxis.
Purpose of the Study:
- To investigate the beige mouse model for studying MAC infections.
- To evaluate a specific human MAC isolate (serovar 1, MAC 101) in this model.
Main Methods:
- Oral and intravenous challenge of beige mice (C57 beige(+)/beige(+)) with a virulent human MAC isolate.
- Observation of disease progression and outcomes in the animal model.
Main Results:
- The beige mouse model demonstrated susceptibility to MAC infection, mimicking aspects of human disease.
- This model provides a platform for evaluating anti-MAC agents.
Conclusions:
- Animal studies, particularly in the beige mouse model, are essential for advancing anti-MAC therapies.
- The efficacy of antimicrobial agents against MAC may correlate with their ability to achieve high intracellular concentrations.