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Published on: March 19, 2019
Virulence factors in fungal pathogens of man
Sascha Brunke1, Selene Mogavero1, Lydia Kasper1
1Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knoell Institute Jena (HKI), Beutenbergstrasse 11a, 07745, Jena, Germany.
Abstract:
Human fungal pathogens are a commonly underestimated cause of severe diseases associated with high morbidity and mortality. Like other pathogens, their survival and growth in the host, as well as subsequent host damage, is thought to be mediated by virulence factors which set them apart from harmless microbes. In this review, we describe and discuss commonly employed strategies for fungal survival and growth in the host and how these affect the host-fungus interactions to lead to disease. While many of these strategies require host-specific virulence factors, more generally any fitness factor which allows growth under host-like conditions can be required for pathogenesis. Furthermore, we briefly summarize how different fungal pathogens are thought to damage the host. We find that in addition to a core of common activities relevant for growth, different groups of fungi employ different strategies which in spite of (or together with) the host's response can lead to disease.
Insights
Fungal pathogens cause severe diseases by employing survival and growth strategies within hosts. These strategies, alongside host responses, lead to pathogenesis and disease, highlighting the need for further research into fungal virulence.
Area of Science:
- Medical Mycology
- Pathogen Biology
- Host-Pathogen Interactions
Background:
- Human fungal pathogens are a significant cause of morbidity and mortality.
- Virulence factors are crucial for pathogen survival, growth, and host damage.
- Understanding fungal pathogenesis is key to developing effective treatments.
Purpose of the Study:
- To review and discuss common strategies used by fungal pathogens for survival and growth within a host.
- To explore how these fungal strategies influence host-pathogen interactions and disease development.
- To summarize the mechanisms by which different fungal pathogens cause host damage.
Main Methods:
- Literature review of scientific articles on fungal pathogenesis.
- Analysis of common fungal survival and growth strategies.
- Synthesis of information on host-fungus interactions and disease mechanisms.
Main Results:
- Fungal pathogens utilize diverse strategies for survival and growth under host-like conditions.
- Virulence factors and general fitness factors contribute to pathogenesis.
- Different fungal groups employ distinct strategies, often in conjunction with host responses, to cause disease.
Conclusions:
- Fungal pathogenesis involves a combination of common growth-related activities and group-specific strategies.
- Host-specific virulence factors are important, but general fitness for host environments is also critical.
- Further investigation into these strategies is essential for combating fungal diseases.
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