Review
Copyright ©The Author(s) 2015.
World J Clin Cases. Jul 16, 2015; 3(7): 575-598
Published online Jul 16, 2015. doi: 10.12998/wjcc.v3.i7.575
Table 1 Quorum sensing systems and quorum sensing-virulence associated phenotypes in the reviewed organisms
OrganismQS systemsRegulated phenotypes
Gram (-) bacteria
Pseudomonas aeruginosa(1) LasI (S)-LasR (R)-HSL (s)Expression of several virulence factors including: Pyocyanin, pyoverdine, elastase, alkaline protease, HCN, rhamnolipids and biofilm formation
(2) HSL RhlI-RhlR
(3) Alkyl quinolones (PQS)
Vibrio harveyi(1) LuxM (S)-LuxN (R)- 3OHC4HSL (s)Expression of bioluminescence genes and several virulence factors including: Siderophores, protease, EPS production
(2) LuxS (S)-LuxP (R)-AI-2 (s)
(3) CqsA (S)-CqsS (R)-CAI-1 (s)
Vibrio cholerae(1) LuxS (S)-LuxP (R)-AI-2 (s) (2) CqsA (S)-CqsS (R)-CAI-1 (s)Expression of several virulence factors including: Biofilm formation and EPS production.
Vibrio fischeri(1) LuxI (S)-LuxR (R)-3OC6HSL (s)Expression of bioluminescence, host colonization and motility genes
(2) AinS (S)-AinR (R)-C8HSL (s)
(3) LuxS (S)-LuxP (R)-AI-2 (s)
Acinetobacter spp(1) Abal (S)-AbaR (R)-3OHC12HSL (s)Expression of virulence factors including biofilm formation.
Burkhordelia cepacea(1) Cep1 (S)-CepR (R)-C8HSL,C6HSL (s)Expression of swarm motility genes and several virulence factors including: proteases, siderophores, toxins, antifungal agents and biofilm formation
(2) Ccil (S)-CciR (R)-C8HSL,C6HSL (s)
Escherichia coliSalmonella typhimurium(1) Unknown (S)-SdiA (R)-3OC8HSL (s) (2) LuxS (S)-LsrB (R)-AI-2 (s) (3) Unknown (S)-QseC (R)-AI-3 (s)Expression of motility genes, acid resistance and virulence factors including biofilm formation
Gram (+) bacteria
Staphylococcus aureus(1)AgrB (S)-AgrC (R)-AIP(s)Expression of several virulence factors including: hemolysins, leukocidins, cell surface adhesins, exoenzymes, and biofilm formation
Fungi
Candida albicans2-phenylethanol, tryptophol, farnesol, farnesoic acid, and tyrosol as (s)Fungal dimorphism, biofilm formation and expression of virulence genes
Mucor rouxii, Histoplasmacapsulatum, Ceratocystis ulmiQS (s) unknownFungal dimorphism
Saccharomyces cerevisiaePhenylethanol and tryptophol as (s)Transition from yeast to filamentous form
Protozoa
Trypanosoma cruziSIF soluble factor as (s)Differentiation of replicating to non-dividing forms
Mammal cells
CD4+T cellsIL-2 (s) and IL-2Rα (R)Regulation of the CD4+T cells population
Cancer cellsMultiple (S) and (R) and paracrine factors as (s)Regulation of the metastatic process