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Aspergillus in chronic lung disease: Modeling what goes on in the airways
Takahiro Takazono1,2,3, Donald C Sheppard4,3
1Departments of Medicine, Microbiology and Immunology, McGill University, Montréal, Québec, Canada.
Abstract:
Aspergillus species cause a range of respiratory diseases in humans. While immunocompromised patients are at risk for the development of invasive infection with these opportunistic molds, patients with underlying pulmonary disease can develop chronic airway infection with Aspergillus species. These conditions span a range of inflammatory and allergic diseases including Aspergillus bronchitis, allergic bronchopulmonary aspergillosis, and severe asthma with fungal sensitization. Animal models are invaluable tools for the study of the molecular mechanism underlying the colonization of airways by Aspergillus and the host response to these non-invasive infections. In this review we summarize the state-of-the-art with respect to the available animal models of noninvasive and allergic Aspergillus airway disease; the key findings of host-pathogen interaction studies using these models; and the limitations and future directions that should guide the development and use of models for the study of these important pulmonary conditions.
Insights
Animal models are crucial for understanding Aspergillus airway diseases, like allergic bronchopulmonary aspergillosis. This review covers current models, host-pathogen interactions, and future research directions for these significant pulmonary conditions.
Area of Science:
- Pulmonology
- Mycology
- Infectious Diseases
Background:
- Aspergillus species cause various human respiratory diseases.
- Immunocompromised individuals risk invasive aspergillosis.
- Patients with lung disease may develop chronic Aspergillus airway infections, including allergic bronchopulmonary aspergillosis and severe asthma with fungal sensitization.
Purpose of the Study:
- To review current animal models for non-invasive and allergic Aspergillus airway diseases.
- To summarize key findings from host-pathogen interaction studies using these models.
- To identify limitations and future directions for Aspergillus airway disease research.
Main Methods:
- Review of existing literature on animal models of Aspergillus airway infections.
- Analysis of host-pathogen interaction studies.
- Discussion of model limitations and future research needs.
Main Results:
- Various animal models exist for studying Aspergillus airway diseases.
- These models have provided insights into host-pathogen interactions in non-invasive and allergic conditions.
- Current models have limitations that need addressing for future research.
Conclusions:
- Animal models are essential for investigating the mechanisms of Aspergillus airway colonization and host responses.
- Further development and strategic use of these models are needed to advance understanding and treatment of pulmonary aspergillosis.
- Future research should focus on refining models to better recapitulate human disease.
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