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When intracellular pathogens invade the frontiers of cell biology and immunology
J Pizarro-Cerdá1, E Moreno, M Desjardins
1Centre d'Immunologie de Marseille-Luminy, Marseille, France.
Abstract:
Cellular microbiology has recently been described as a new discipline emerging at the interface between cell biology and microbiology (Cossart et al., 1996). Many microbial pathogens can enter eukaryotic cells and live intracellularly either inside vacuoles or in the cytoplasm. The different steps during the invasion process are on the way of being dissected at the molecular level revealing new insights in basic cellular functions. Indeed, bacterial pathogenesis can help us to better understand the dynamics of cell cytoskeleton, intracellular membrane traffic and signal transduction events. The recent advancements in the field of microbial pathogenesis are creating a new cross-talk between cell biologists, microbiologists and immunologists. In this review, the different strategies used by several pathogens are presented and the mechanisms elaborated by host cells from the immune system to eliminate the parasites discussed.
Insights
Cellular microbiology explores how pathogens invade host cells, offering insights into cell biology and immunity. Understanding these microbial invasion strategies enhances our knowledge of cellular functions and host defense mechanisms.
Area of Science:
- Cellular microbiology
- Molecular biology
- Immunology
Background:
- Cellular microbiology is an emerging discipline at the intersection of cell biology and microbiology.
- Many microbial pathogens invade eukaryotic cells, residing intracellularly in vacuoles or the cytoplasm.
- Pathogen invasion offers a unique lens to study fundamental cellular processes.
Purpose of the Study:
- To review the strategies employed by various microbial pathogens for host cell invasion.
- To discuss the host immune system's mechanisms for eliminating intracellular parasites.
- To highlight the interdisciplinary nature of cellular microbiology, bridging cell biology, microbiology, and immunology.
Main Methods:
- Literature review of microbial pathogenesis and host-pathogen interactions.
- Analysis of molecular mechanisms underlying pathogen entry and intracellular survival.
- Examination of host immune responses to intracellular microbial infections.
Main Results:
- Pathogen invasion dissects molecular steps, revealing insights into cytoskeleton dynamics, membrane trafficking, and signal transduction.
- Bacterial pathogenesis provides a model for understanding basic cellular functions.
- Advancements foster interdisciplinary collaboration among cell biologists, microbiologists, and immunologists.
Conclusions:
- Cellular microbiology is a rapidly advancing field with significant implications for understanding host-pathogen interactions.
- Studying microbial invasion enhances comprehension of eukaryotic cell biology and immune responses.
- This field promotes cross-talk and collaboration among diverse scientific disciplines.