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Host-pathogen interactions in mycoplasma pathogenesis: virulence and survival strategies of minimalist prokaryotes
R Rosengarten1, C Citti, M Glew
1Institute of Bacteriology, Mycology and Hygiene, University of Veterinary Medicine Vienna, Austria. Renate-Rosengarten@vu-wien.ac.at
Abstract:
Despite their very small genomes mycoplasmas are successful pathogens of man and a wide range of animal hosts. Because of the lack of effective therapeutics and vaccines, mycoplasma diseases continue to be a significant problem for public health as well as livestock production with major socio-economic consequences worldwide. Recent outbreaks and epidemiological studies predict that the incidence of human and animal mycoplasma diseases might increase which indicates the urgent need to develop new approaches for prevention and therapy. Development of such reagents, however, requires a solid understanding of the molecular biology of mycoplasma infections. Knowledge in this field has considerably increased during the past decade since new techniques have been developed and adapted to mycoplasmas that allow these organisms to be studied at the molecular level. Research on the two human pathogens Mycoplasma pneumoniae and Mycoplasma genitalium of which the genome sequences have recently been completed as well as the substantial number of studies carried out on the AIDS-associated mycoplasmas, Mycoplasma penetrans and Mycoplasma fermentans, has led the way, but a number of animal mycoplasmas are becoming increasingly appreciated as models for the study of the molecular basis of mycoplasma diseases. This review summarizes and highlights some of the recent findings concerning the molecular interactions that occur between pathogenic mycoplasmas and their hosts, both the common strategies as well as some unique approaches evolved by particular mycoplasma pathogens, including adherence to and uptake into non-phagocytic host cells, as well as mechanisms of escaping the host immune system.
Insights
Mycoplasma pathogens cause significant human and animal diseases due to their unique molecular strategies for host cell invasion and immune evasion. Understanding these mechanisms is crucial for developing new therapies and vaccines against increasing mycoplasma infections.
Area of Science:
- Microbiology
- Pathogen Molecular Biology
Background:
- Mycoplasmas are small-genome pathogens causing significant human and animal diseases with major socio-economic impacts.
- Lack of effective therapeutics and vaccines necessitates new prevention and treatment strategies.
- Increasing incidence of mycoplasma diseases highlights the urgent need for research.
Purpose of the Study:
- To review recent findings on the molecular interactions between pathogenic mycoplasmas and their hosts.
- To highlight common and unique strategies employed by mycoplasma pathogens.
- To provide insights for developing novel therapeutic and preventive approaches.
Main Methods:
- Review of recent scientific literature on mycoplasma molecular biology and pathogenesis.
- Analysis of studies focusing on host-pathogen interactions at the molecular level.
- Integration of findings from human and animal mycoplasma research.
Main Results:
- Mycoplasmas utilize diverse molecular strategies for adherence, invasion of non-phagocytic cells, and immune system evasion.
- Research on human pathogens like Mycoplasma pneumoniae and Mycoplasma genitalium has advanced understanding.
- Animal mycoplasmas are increasingly recognized as valuable models for studying disease mechanisms.
Conclusions:
- A deeper understanding of mycoplasma molecular pathogenesis is essential for combating these infections.
- Identifying specific molecular interactions can lead to targeted therapeutic interventions.
- Continued research into mycoplasma-host interactions is vital for public and animal health.