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Invasion of Human Cells by a Bacterial Pathogen
Published on: March 21, 2011
Staphylococcus aureus host cell invasion and post-invasion events.
Bhanu Sinha1, Martin Fraunholz
1Institute of Hygiene and Microbiology, University of Würzburg, Josef-Schneider-Strasse 2, Bldg. E1, D-97080 Würzburg, Germany. bsinha@hygiene.uni-wuerzburg.de
International Journal of Medical Microbiology : IJMM
|September 29, 2009
Summary
Staphylococcus aureus invades host cells, acting as a facultative intracellular pathogen. This review details its invasion mechanisms, intracellular survival, and the impact of alpha-toxin on infected phagosomes.
Area of Science:
- Microbiology
- Cell Biology
- Pathogen Research
Background:
- Staphylococcus aureus is increasingly recognized as a facultative intracellular pathogen.
- Understanding its intracellular lifestyle is crucial for developing new therapeutic strategies.
Purpose of the Study:
- To review novel data on Staphylococcus aureus invasion mechanisms.
- To discuss post-invasion events, focusing on phagosome fate in non-professional phagocytes.
- To highlight the role of Staphylococcus aureus alpha-toxin in intracellular survival.
Main Methods:
- Literature review of recent studies on Staphylococcus aureus pathogenesis.
- Analysis of data concerning bacterial entry into host cells.
- Examination of phagosome dynamics and host-pathogen interactions.
Main Results:
- Staphylococcus aureus employs diverse mechanisms to invade non-professional phagocytes.
- The bacterium can survive and replicate within host cells, evading immune responses.
- Alpha-toxin plays a significant role in modulating the phagosome and facilitating intracellular survival.
Conclusions:
- Staphylococcus aureus exhibits complex intracellular behavior, contributing to its virulence.
- Targeting invasion pathways and alpha-toxin activity may offer novel treatment approaches.
- Further research into host-pathogen interactions within non-professional phagocytes is warranted.
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