Results 21 to 30 of about 10,455 (248)

Bacterial amyloid curli acts as a carrier for DNA to elicit an autoimmune response via TLR2 and TLR9. [PDF]

open access: yesPLoS Pathogens, 2017
Bacterial biofilms are associated with numerous human infections. The predominant protein expressed in enteric biofilms is the amyloid curli, which forms highly immunogenic complexes with DNA. Infection with curli-expressing bacteria or systemic exposure
Sarah A Tursi   +9 more
doaj   +1 more source

A Comprehensive Review of the Multitarget Effects of Subinhibitory Concentrations of Essential Oils Against Salmonella. [PDF]

open access: yesCompr Rev Food Sci Food Saf
ABSTRACT Essential oils (EOs) exhibit antimicrobial activity against foodborne pathogens due to their chemical composition. This review investigates the mechanisms of action of EOs at subinhibitory concentrations against Salmonella strains. Even at subinhibitory concentrations, EOs induce cellular stress and modulate bacterial metabolism. EOs interfere
Ramos C   +5 more
europepmc   +2 more sources

Microarray-based screening of differentially expressed genes of E. coli O157:H7 Sakai during preharvest survival on butterhead lettuce [PDF]

open access: yes, 2016
Numerous outbreaks of Escherichia coli O157:H7 have been linked to the consumption of leafy vegetables. However, up to the present, little has been known about E.
Cottyn, Bart   +6 more
core   +3 more sources

Escherichia coli O157:H7 Curli Fimbriae Promotes Biofilm Formation, Epithelial Cell Invasion, and Persistence in Cattle

open access: yesMicroorganisms, 2020
Escherichia coli O157:H7 (O157) is noninvasive and a weak biofilm producer; however, a subset of O157 are exceptions. O157 ATCC 43895 forms biofilms and invades epithelial cells. Tn5 mutagenesis identified a mutation responsible for both phenotypes.
Haiqing Sheng   +4 more
doaj   +1 more source

Curli of Uropathogenic Escherichia coli Enhance Urinary Tract Colonization as a Fitness Factor

open access: yesFrontiers in Microbiology, 2019
Curli, a type of fimbriae widely distributed in uropathogenic Escherichia coli (UPEC), are involved in adhesion to human bladder cell surfaces and biofilm development. The role of UPEC curli was evaluated in a murine model of urinary tract infection. The
Víctor M. Luna-Pineda   +8 more
doaj   +1 more source

Assembly and substrate recognition of curli biogenesis system

open access: yesNature Communications, 2020
A major component of bacterial biofilms is curli amyloid fibrils secreted by the curli biogenesis system. Here authors use cryo-EM to visualize the secretion channel complexes (CsgF-CsgG) with and without the curli substrate and provide insights into ...
Zhaofeng Yan   +3 more
doaj   +1 more source

Innovative solutions to sticky situations: Antiadhesive strategies for treating bacterial infections [PDF]

open access: yes, 2016
Bacterial adherence to host tissue is an essential process in pathogenesis, necessary for invasion and colonization and often required for the efficient delivery of toxins and other bacterial effectors.
Aberg   +314 more
core   +2 more sources

Indirect measurement of the magnetocaloric effect using a novel differential scanning calorimeter with magnetic field [PDF]

open access: yes, 2008
Curli are bacterial appendages involved in the adhesion of cells to surfaces; their synthesis is regulated by many genes such as csgD and ompR. The expression of the two curli subunits (CsgA and CsgB) in Escherichia coli (E.
Jensen, Jesper Buch   +4 more
core   +3 more sources

Differential regulatory control of curli (csg) gene expression in Salmonella enterica serovar Typhi requires more than a functional CsgD regulator

open access: yesScientific Reports, 2023
The human-specific Salmonella enterica serovar Typhi (S. Typhi) causes typhoid fever, a systemic disease with no known reservoir. Curli fimbriae are major components of biofilm produced by Salmonella and are encoded by the csg gene cluster (csgBAC and ...
Camille Ou   +2 more
doaj   +1 more source

FabR regulates Salmonella biofilm formation via its direct target FabB [PDF]

open access: yes, 2016
Background: Biofilm formation is an important survival strategy of Salmonella in all environments. By mutant screening, we showed a knock-out mutant of fabR, encoding a repressor of unsaturated fatty acid biosynthesis (UFA), to have impaired biofilm ...
De Coster, David   +8 more
core   +4 more sources

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