Intruders below the Radar: Molecular Pathogenesis of Bartonella spp
Top Cited Papers
- 1 January 2012
- journal article
- review article
- Published by American Society for Microbiology in Clinical Microbiology Reviews
- Vol. 25 (1), 42-78
- https://doi.org/10.1128/cmr.05009-11
Abstract
SUMMARY: Bartonellaspp. are facultative intracellular pathogens that employ a unique stealth infection strategy comprising immune evasion and modulation, intimate interaction with nucleated cells, and intraerythrocytic persistence. Infections withBartonellaare ubiquitous among mammals, and many species can infect humans either as their natural host or incidentally as zoonotic pathogens. Upon inoculation into a naive host, the bartonellae first colonize a primary niche that is widely accepted to involve the manipulation of nucleated host cells, e.g., in the microvasculature. Consistently,in vitroresearch showed thatBartonellaharbors an ample arsenal of virulence factors to modulate the response of such cells, gain entrance, and establish an intracellular niche. Subsequently, the bacteria are seeded into the bloodstream where they invade erythrocytes and give rise to a typically asymptomatic intraerythrocytic bacteremia. While this course of infection is characteristic for natural hosts, zoonotic infections or the infection of immunocompromised patients may alter the path ofBartonellaand result in considerable morbidity. In this review we compile current knowledge on the molecular processes underlying both the infection strategy and pathogenesis ofBartonellaand discuss their connection to the clinical presentation of human patients, which ranges from minor complaints to life-threatening disease.Keywords
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