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Studying Inherited Immunity in a Caenorhabditis elegans Model of Microsporidia Infection
Published on: April 6, 2022
Innate immunity against moulds: lessons learned from invertebrate models
1Infectious Disease Unit, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel. ronenba@tasmc.health.gov.il
Abstract:
The emergence over the past two decades of invasive mycoses as a significant problem in immunocompromised patients underscores the importance of deciphering innate immunity against filamentous fungi. However, the complexity and cost of traditionally used mammalian model hosts presents a bottleneck that has limited the rate of advances in this field. In contrast, invertebrate model hosts have several important advantages, including simple immune systems, genetic tractability, and amenity to high-throughput experiments. The application of these models to studies of host-pathogen interactions is contingent on two tenets: (1) host innate defenses are preserved across widely disparate taxa, and (2) similar fungal virulence factors are operative in insects and in mammals. Validation of these principles paved the way for the use of invertebrates as facile models for studying invasive mould infections. These studies have helped shape our understanding of human pattern recognition receptors, phagocytic cell function and antimicrobial proteins, and their roles in host defense against filamentous fungi.
Insights
Invertebrate models offer a simpler, cost-effective way to study fungal infections in immunocompromised patients. These models help unravel innate immunity against filamentous fungi, advancing our understanding of host defense mechanisms.
Area of Science:
- * Immunology
- * Mycology
- * Infectious Diseases
Background:
- * Invasive fungal infections (mycoses) pose a significant threat to immunocompromised individuals.
- * Traditional mammalian models for studying fungal infections are complex and costly, hindering research progress.
- * Understanding innate immunity against filamentous fungi is crucial for developing effective treatments.
Purpose of the Study:
- * To highlight the utility of invertebrate model hosts for studying host-pathogen interactions in invasive fungal infections.
- * To validate the use of invertebrates as facile models for investigating antifungal immunity.
Main Methods:
- * Leveraging invertebrate model hosts (e.g., insects) due to their simple immune systems and genetic tractability.
- * Conducting high-throughput experiments to study host-pathogen interactions.
- * Validating the conservation of innate immune defenses and fungal virulence factors across taxa.
Main Results:
- * Demonstrated that invertebrate models are suitable for studying invasive mould infections.
- * Showcased the conserved nature of innate immune responses and fungal virulence factors between invertebrates and mammals.
- * Facilitated the study of key components of innate immunity, including pattern recognition receptors, phagocytic cells, and antimicrobial proteins.
Conclusions:
- * Invertebrate models provide a powerful and accessible platform for advancing research on invasive mycoses.
- * These models have significantly contributed to understanding human innate immune responses against filamentous fungi.
- * Further application of invertebrate models promises to accelerate the development of novel antifungal strategies.
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