Shigella spp. and enteroinvasive Escherichia coli pathogenicity factors.
Bacteria of Shigella spp. (S. boydii, S. dysenteriae, S. flexneri and S. sonnei) and enteroinvasive Escherichia coli (EIEC) are responsible for shigellosis in humans, a disease characterized by the destruction of the colonic mucosa that is induced upon bacterial invasion. Shigella spp. and EIEC strains contain a virulence plasmid of approximately 220 kb that encodes determinants for entry into epithelial cells and dissemination from cell to cell. This review presents the current model on mechanisms of invasion of the colonic epithelium by these bacteria and focuses on their pathogenicity factors, particularly the virulence plasmid-encoded type III secretion system.
Parsot
Claude
C
Unité de Pathogénie Microbienne Moléculaire, INSERM U389, Institut Pasteur, 25 rue du Dr Roux, 75724 Paris Cedex 15, France. cparsot@pasteur.fr
D001426:Bacterial Proteins / Q000235:genetics / Q000378:metabolism*; D003106:Colon / Q000382:microbiology*; D004405:Dysentery, Bacillary / Q000382:microbiology; D004926:Escherichia coli / Q000235:genetics / Q000472:pathogenicity*; D006801:Humans; D010957:Plasmids / Q000235:genetics; D012760:Shigella / Q000145:classification* / Q000235:genetics / Q000472:pathogenicity*; D014774:Virulence; D037521:Virulence Factors / Q000235:genetics* / Q000378:metabolism
D001426:Bacterial Proteins; D037521:Virulence Factors