Persistence of bacterial pathogens as a physiological phenomenon |
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Authors: | O V Bukharin |
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Institution: | (1) Institute of Cellular and Intracellular Symbiosis, Ural Division, Russian Academy of Sciences, Orenburg, Russia |
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Abstract: | The complex ecosystem of humans and microbes has been presented as an associative symbiosis based on a mutual support of symbionts with different consequences for them. Conditions for the persistence of bacteria have been defined: their resistance to environmental factors, antagonism in biocenosis, and stability to withstand host defense mechanisms. The key role of bacterial peptidoglycan has been defined for their survival in an infected organism, and the classification for persistent mechanisms of pathogens has been given. The group of bacterial secreted protease providing microbial resistance to defense factors of the organism has been described. Host colonizing resistance has been presented as a physiological regulatory system controlling bacterial penetration into an organism. Regulatory mechanisms for bacterial persistence have been discussed. |
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