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Brucella abortus induces the premature death of human neutrophils through the action of Its lipopolysaccharide
(PLoS Pathogens, 2015-05-06)
Most bacterial infections induce the activation of polymorphonuclear neutrophils (PMNs), enhance their microbicidal function, and promote the survival of these leukocytes for protracted periods of time. Brucella abortus ...
Neutrophils dampen adaptive immunity in Brucellosis
(American Society For Microbiology, 2019-04-23)
Brucella organisms are intracellular stealth pathogens of animals and humans. The bacteria overcome the assault of innate immunity at early stages of an infection. Removal of polymorphonuclear neutrophils (PMNs) at the ...
Neutrophils as Trojan Horse vehicles for Brucella abortus macrophage infection
(Universidad Nacional, Costa Rica, 2019-05-07)
Brucella abortus is a stealthy intracellular bacterial pathogen of animals and humans. This bacterium promotes the premature cell death of neutrophils (PMN) and resists the killing action of these leukocytes. B. abortus-infected ...
Persistence of Brucella abortus in the bone marrow of infected mice
(Journal of Immunology Research, 2018-12-03)
Brucellosis is a zoonotic bacterial infection that may persist for long periods causing relapses in antibiotic-treated patients. The ability of Brucella to develop chronic infections is linked to their capacity to invade ...
What have we learned from brucellosis in the mouse model?
(Veterinary Research, 2012)
Brucellosis is a zoonosis caused by Brucella species. Brucellosis research in natural hosts is often precluded by
practical, economical and ethical reasons and mice are widely used. However, mice are not natural Brucella ...
The lipopolysaccharide core of Brucella abortus acts as a shield against innate immunity recognition
(PLoS Pathogens, 2012-05-10)
Innate immunity recognizes bacterial molecules bearing pathogen-associated molecular patterns to launch inflammatory responses leading to the activation of adaptive immunity. However, the lipopolysaccharide (LPS) of the ...
Brucella β 1,2 cyclic glucan is an activator of human and mouse dendritic cells
(PLoS Pathogens, 2012-11-15)
Bacterial cyclic glucans are glucose polymers that concentrate within the periplasm of alpha-proteobacteria. These molecules are necessary to maintain the homeostasis of the cell envelope by contributing to the osmolarity ...
Neutrophils exert a suppressive effect on Th1 responses to intracellular pathogen Brucella abortus
(PLoS Pathogens, 2013-02-14)
Polymorphonuclear neutrophils (PMNs) are the first line of defense against microbial pathogens. In addition to their role in innate immunity, PMNs may also regulate events related to adaptive immunity. To investigate the ...
Brucella abortus senses the intracellular environment through the BvrR/Bvrs two-component system, which allows B. abortus to adapt to its replicative nich
(American Society for Microbiology., 2018-01-16)
Brucella abortus is a facultative extracellular-intracellular pathogen belonging to a group of Alphaproteobacteria that establishes close interactions with animal cells. This bacterium enters host cells in a membrane-bound ...
The differential interaction of brucella and ochrobactrum with innate immunity reveals traits related to the evolution of stealthy pathogens
(PLOS ONE, 2009-06-16)
Background: During evolution, innate immunity has been tuned to recognize pathogen-associated molecular patterns. However, some a-Proteobacteria are stealthy intracellular pathogens not readily detected by this system. ...