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Serine Protease Autotransporters of the Enterobacteriaceae (SPATEs): Out and About and Chopping It Up.

Pokharel P, Habouria H, Bessaiah H, Dozois CM.

Microorganisms. 2019 Nov 21;7(12). pii: E594. doi: 10.3390/microorganisms7120594. Review.


yqhG Contributes to Oxidative Stress Resistance and Virulence of Uropathogenic Escherichia coli and Identification of Other Genes Altering Expression of Type 1 Fimbriae.

Bessaiah H, Pokharel P, Habouria H, Houle S, Dozois CM.

Front Cell Infect Microbiol. 2019 Aug 29;9:312. doi: 10.3389/fcimb.2019.00312. eCollection 2019.


Three new serine-protease autotransporters of Enterobacteriaceae (SPATEs) from extra-intestinal pathogenic Escherichia coli and combined role of SPATEs for cytotoxicity and colonization of the mouse kidney.

Habouria H, Pokharel P, Maris S, Garénaux A, Bessaiah H, Houle S, Veyrier FJ, Guyomard-Rabenirina S, Talarmin A, Dozois CM.

Virulence. 2019 Dec;10(1):568-587. doi: 10.1080/21505594.2019.1624102.


Distribution of ExPEC Virulence Factors, bla CTX-M, fosA3, and mcr-1 in Escherichia coli Isolated From Commercialized Chicken Carcasses.

Cyoia PS, Koga VL, Nishio EK, Houle S, Dozois CM, de Brito KCT, de Brito BG, Nakazato G, Kobayashi RKT.

Front Microbiol. 2019 Jan 14;9:3254. doi: 10.3389/fmicb.2018.03254. eCollection 2018.


The Periplasmic Trehalase Affects Type 1 Fimbria Production and Virulence of Extraintestinal Pathogenic Escherichia coli Strain MT78.

Pavanelo DB, Houle S, Matter LB, Dozois CM, Horn F.

Infect Immun. 2018 Jul 23;86(8). pii: e00241-18. doi: 10.1128/IAI.00241-18. Print 2018 Aug.


eIF4E-Binding Proteins 1 and 2 Limit Macrophage Anti-Inflammatory Responses through Translational Repression of IL-10 and Cyclooxygenase-2.

William M, Leroux LP, Chaparro V, Lorent J, Graber TE, M'Boutchou MN, Charpentier T, Fabié A, Dozois CM, Stäger S, van Kempen LC, Alain T, Larsson O, Jaramillo M.

J Immunol. 2018 Jun 15;200(12):4102-4116. doi: 10.4049/jimmunol.1701670. Epub 2018 Apr 30.


Iron Acquisition and Siderophore Release by Carbapenem-Resistant Sequence Type 258 Klebsiella pneumoniae.

Holden VI, Wright MS, Houle S, Collingwood A, Dozois CM, Adams MD, Bachman MA.

mSphere. 2018 Apr 18;3(2). pii: e00125-18. doi: 10.1128/mSphere.00125-18. Print 2018 Apr 25.


Altered Regulation of the Diguanylate Cyclase YaiC Reduces Production of Type 1 Fimbriae in a Pst Mutant of Uropathogenic Escherichia coli CFT073.

Crépin S, Porcheron G, Houle S, Harel J, Dozois CM.

J Bacteriol. 2017 Nov 14;199(24). pii: e00168-17. doi: 10.1128/JB.00168-17. Print 2017 Dec 15.


Salmonella enterica serovar Typhi siderophore production is elevated and Fur inactivation causes cell filamentation and attenuation in macrophages.

Leclerc JM, Dozois CM, Daigle F.

FEMS Microbiol Lett. 2017 Aug 15;364(15). doi: 10.1093/femsle/fnx147.


Klebsiella pneumoniae Siderophores Induce Inflammation, Bacterial Dissemination, and HIF-1α Stabilization during Pneumonia.

Holden VI, Breen P, Houle S, Dozois CM, Bachman MA.

MBio. 2016 Sep 13;7(5). pii: e01397-16. doi: 10.1128/mBio.01397-16.


The Bacterial Stress-Responsive Hsp90 Chaperone (HtpG) Is Required for the Production of the Genotoxin Colibactin and the Siderophore Yersiniabactin in Escherichia coli.

Garcie C, Tronnet S, Garénaux A, McCarthy AJ, Brachmann AO, Pénary M, Houle S, Nougayrède JP, Piel J, Taylor PW, Dozois CM, Genevaux P, Oswald E, Martin P.

J Infect Dis. 2016 Sep 15;214(6):916-24. doi: 10.1093/infdis/jiw294. Epub 2016 Jul 13.


Regulation and production of Tcf, a cable-like fimbriae from Salmonella enterica serovar Typhi.

Leclerc JM, Quevillon EL, Houde Y, Paranjape K, Dozois CM, Daigle F.

Microbiology. 2016 May;162(5):777-788. doi: 10.1099/mic.0.000270. Epub 2016 Mar 4.


Survival games at the dinner table: regulation of Enterobacterial virulence through nutrient sensing and acquisition.

Porcheron G, Schouler C, Dozois CM.

Curr Opin Microbiol. 2016 Apr;30:98-106. doi: 10.1016/j.mib.2016.01.008. Epub 2016 Feb 10. Review.


Comprehensive analysis of flagellin glycosylation in Campylobacter jejuni NCTC 11168 reveals incorporation of legionaminic acid and its importance for host colonization.

Zebian N, Merkx-Jacques A, Pittock PP, Houle S, Dozois CM, Lajoie GA, Creuzenet C.

Glycobiology. 2016 Apr;26(4):386-97. doi: 10.1093/glycob/cwv104. Epub 2015 Nov 17.


Presence of virulence genes and pathogenicity islands in extraintestinal pathogenic Escherichia coli isolates from Brazil.

Cyoia PS, Rodrigues GR, Nishio EK, Medeiros LP, Koga VL, Pereira AP, Vespero EC, Houle S, Dozois CM, Nakazato G, Kobayashi RK.

J Infect Dev Ctries. 2015 Oct 29;9(10):1068-75. doi: 10.3855/jidc.6683.


HlyF Produced by Extraintestinal Pathogenic Escherichia coli Is a Virulence Factor That Regulates Outer Membrane Vesicle Biogenesis.

Murase K, Martin P, Porcheron G, Houle S, Helloin E, Pénary M, Nougayrède JP, Dozois CM, Hayashi T, Oswald E.

J Infect Dis. 2016 Mar 1;213(5):856-65. doi: 10.1093/infdis/jiv506. Epub 2015 Oct 22.



Dozois CM.

Can J Microbiol. 2015 Sep;61(9):v. doi: 10.1139/cjm-2015-0530. No abstract available.


Interplay between iron homeostasis and virulence: Fur and RyhB as major regulators of bacterial pathogenicity.

Porcheron G, Dozois CM.

Vet Microbiol. 2015 Aug 31;179(1-2):2-14. doi: 10.1016/j.vetmic.2015.03.024. Epub 2015 Apr 8. Review.


Role of capsular modified heptose in the virulence of Campylobacter jejuni.

Wong A, Lange D, Houle S, Arbatsky NP, Valvano MA, Knirel YA, Dozois CM, Creuzenet C.

Mol Microbiol. 2015 Jun;96(6):1136-58. doi: 10.1111/mmi.12995. Epub 2015 Apr 11.


Interplay between genetic regulation of phosphate homeostasis and bacterial virulence.

Chekabab SM, Harel J, Dozois CM.

Virulence. 2014;5(8):786-93. doi: 10.4161/viru.29307. Epub 2014 Oct 31. Review.


The small RNA RyhB contributes to siderophore production and virulence of uropathogenic Escherichia coli.

Porcheron G, Habib R, Houle S, Caza M, Lépine F, Daigle F, Massé E, Dozois CM.

Infect Immun. 2014 Dec;82(12):5056-68. doi: 10.1128/IAI.02287-14. Epub 2014 Sep 22.


PhoB activates Escherichia coli O157:H7 virulence factors in response to inorganic phosphate limitation.

Chekabab SM, Jubelin G, Dozois CM, Harel J.

PLoS One. 2014 Apr 7;9(4):e94285. doi: 10.1371/journal.pone.0094285. eCollection 2014.


Avian extraintestinal Escherichia coli exhibits enterotoxigenic-like activity in the in vivo rabbit ligated ileal loop assay.

Maluta RP, Gatti MS, Joazeiro PP, de Paiva JB, Rojas TC, Silveira F, Houle S, Kobayashi RK, Dozois CM, Dias da Silveira W.

Foodborne Pathog Dis. 2014 Jun;11(6):484-9. doi: 10.1089/fpd.2013.1719. Epub 2014 Mar 27.


Iron, copper, zinc, and manganese transport and regulation in pathogenic Enterobacteria: correlations between strains, site of infection and the relative importance of the different metal transport systems for virulence.

Porcheron G, Garénaux A, Proulx J, Sabri M, Dozois CM.

Front Cell Infect Microbiol. 2013 Dec 5;3:90. doi: 10.3389/fcimb.2013.00090. eCollection 2013. Review.


Shiga toxins decrease enterohaemorrhagic Escherichia coli survival within Acanthamoeba castellanii.

Chekabab SM, Daigle F, Charette SJ, Dozois CM, Harel J.

FEMS Microbiol Lett. 2013 Jul;344(1):86-93. doi: 10.1111/1574-6968.12158. Epub 2013 Apr 29.


Role of the Salmonella enterica serovar Typhi Fur regulator and small RNAs RfrA and RfrB in iron homeostasis and interaction with host cells.

Leclerc JM, Dozois CM, Daigle F.

Microbiology. 2013 Mar;159(Pt 3):591-602. doi: 10.1099/mic.0.064329-0. Epub 2013 Jan 10.


The ecological habitat and transmission of Escherichia coli O157:H7.

Chekabab SM, Paquin-Veillette J, Dozois CM, Harel J.

FEMS Microbiol Lett. 2013 Apr;341(1):1-12. doi: 10.1111/1574-6968.12078. Epub 2013 Jan 29. Review.


Survival of enterohemorrhagic Escherichia coli in the presence of Acanthamoeba castellanii and its dependence on Pho regulon.

Chekabab SM, Daigle F, Charette SJ, Dozois CM, Harel J.

Microbiologyopen. 2012 Dec;1(4):427-37. doi: 10.1002/mbo3.40. Epub 2012 Oct 30.


The fate of not sensing phosphate: downregulation of type 1 fimbriae through activation of the Pho regulon reduces E. coli urinary tract virulence.

Crépin S, Porcheron G, Harel J, Dozois CM.

Virulence. 2012 Nov 15;3(7):596-8. doi: 10.4161/viru.22539. Epub 2012 Nov 15. No abstract available.


Avian lipocalin expression in chickens following Escherichia coli infection and inhibition of avian pathogenic Escherichia coli growth by Ex-FABP.

Garénaux A, Houle S, Folch B, Dallaire G, Truesdell M, Lépine F, Doucet N, Dozois CM.

Vet Immunol Immunopathol. 2013 Mar 15;152(1-2):156-67. doi: 10.1016/j.vetimm.2012.09.018. Epub 2012 Sep 26.


Metals: ironing out copper toxicity.

Garénaux A, Dozois CM.

Nat Chem Biol. 2012 Jul 18;8(8):680-1. doi: 10.1038/nchembio.1027. No abstract available.


Chromosomal complementation using Tn7 transposon vectors in Enterobacteriaceae.

Crépin S, Harel J, Dozois CM.

Appl Environ Microbiol. 2012 Sep;78(17):6001-8. doi: 10.1128/AEM.00986-12. Epub 2012 Jun 15.


Decreased expression of type 1 fimbriae by a pst mutant of uropathogenic Escherichia coli reduces urinary tract infection.

Crépin S, Houle S, Charbonneau MÈ, Mourez M, Harel J, Dozois CM.

Infect Immun. 2012 Aug;80(8):2802-15. doi: 10.1128/IAI.00162-12. Epub 2012 Jun 4.


Identification and mechanism of evolution of new alleles coding for the AIDA-I autotransporter of porcine pathogenic Escherichia coli.

Côté JP, Berthiaume F, Houle S, Fairbrother JM, Dozois CM, Mourez M.

Appl Environ Microbiol. 2012 Jul;78(13):4597-605. doi: 10.1128/AEM.00906-12. Epub 2012 Apr 20.


A structural motif is the recognition site for a new family of bacterial protein O-glycosyltransferases.

Charbonneau MÈ, Côté JP, Haurat MF, Reiz B, Crépin S, Berthiaume F, Dozois CM, Feldman MF, Mourez M.

Mol Microbiol. 2012 Mar;83(5):894-907. doi: 10.1111/j.1365-2958.2012.07973.x. Epub 2012 Feb 5.


The Pho regulon and the pathogenesis of Escherichia coli.

Crépin S, Chekabab SM, Le Bihan G, Bertrand N, Dozois CM, Harel J.

Vet Microbiol. 2011 Nov 21;153(1-2):82-8. doi: 10.1016/j.vetmic.2011.05.043. Epub 2011 Jun 1. Review.


The Ins and Outs of siderophore mediated iron uptake by extra-intestinal pathogenic Escherichia coli.

Garénaux A, Caza M, Dozois CM.

Vet Microbiol. 2011 Nov 21;153(1-2):89-98. doi: 10.1016/j.vetmic.2011.05.023. Epub 2011 Jun 6. Review.


Klebsiella pneumoniae yersiniabactin promotes respiratory tract infection through evasion of lipocalin 2.

Bachman MA, Oyler JE, Burns SH, Caza M, Lépine F, Dozois CM, Weiser JN.

Infect Immun. 2011 Aug;79(8):3309-16. doi: 10.1128/IAI.05114-11. Epub 2011 May 16.


Escherichia coli from animal reservoirs as a potential source of human extraintestinal pathogenic E. coli.

Bélanger L, Garenaux A, Harel J, Boulianne M, Nadeau E, Dozois CM.

FEMS Immunol Med Microbiol. 2011 Jun;62(1):1-10. doi: 10.1111/j.1574-695X.2011.00797.x. Epub 2011 Mar 24. Review.


Secretion, but not overall synthesis, of catecholate siderophores contributes to virulence of extraintestinal pathogenic Escherichia coli.

Caza M, Lépine F, Dozois CM.

Mol Microbiol. 2011 Apr;80(1):266-82. doi: 10.1111/j.1365-2958.2011.07570.x. Epub 2011 Feb 24.


Increased Pho regulon activation correlates with decreased virulence of an avian pathogenic Escherichia coli O78 strain.

Bertrand N, Houle S, LeBihan G, Poirier É, Dozois CM, Harel J.

Infect Immun. 2010 Dec;78(12):5324-31. doi: 10.1128/IAI.00452-10. Epub 2010 Oct 4.


A small RNA promotes siderophore production through transcriptional and metabolic remodeling.

Salvail H, Lanthier-Bourbonnais P, Sobota JM, Caza M, Benjamin JA, Mendieta ME, Lépine F, Dozois CM, Imlay J, Massé E.

Proc Natl Acad Sci U S A. 2010 Aug 24;107(34):15223-8. doi: 10.1073/pnas.1007805107. Epub 2010 Aug 9.


Food reservoir for Escherichia coli causing urinary tract infections.

Vincent C, Boerlin P, Daignault D, Dozois CM, Dutil L, Galanakis C, Reid-Smith RJ, Tellier PP, Tellis PA, Ziebell K, Manges AR.

Emerg Infect Dis. 2010 Jan;16(1):88-95. doi: 10.3201/eid1601.091118.


Roles of the extraintestinal pathogenic Escherichia coli ZnuACB and ZupT zinc transporters during urinary tract infection.

Sabri M, Houle S, Dozois CM.

Infect Immun. 2009 Mar;77(3):1155-64. doi: 10.1128/IAI.01082-08. Epub 2008 Dec 22.


Genome-wide transcriptional response of an avian pathogenic Escherichia coli (APEC) pst mutant.

Crépin S, Lamarche MG, Garneau P, Séguin J, Proulx J, Dozois CM, Harel J.

BMC Genomics. 2008 Nov 28;9:568. doi: 10.1186/1471-2164-9-568.


Specific roles of the iroBCDEN genes in virulence of an avian pathogenic Escherichia coli O78 strain and in production of salmochelins.

Caza M, Lépine F, Milot S, Dozois CM.

Infect Immun. 2008 Aug;76(8):3539-49. doi: 10.1128/IAI.00455-08. Epub 2008 Jun 9.


Contribution of the SitABCD, MntH, and FeoB metal transporters to the virulence of avian pathogenic Escherichia coli O78 strain chi7122.

Sabri M, Caza M, Proulx J, Lymberopoulos MH, Brée A, Moulin-Schouleur M, Curtiss R 3rd, Dozois CM.

Infect Immun. 2008 Feb;76(2):601-11. Epub 2007 Nov 19.


Contribution of the stg fimbrial operon of Salmonella enterica serovar Typhi during interaction with human cells.

Forest C, Faucher SP, Poirier K, Houle S, Dozois CM, Daigle F.

Infect Immun. 2007 Nov;75(11):5264-71. Epub 2007 Aug 20.


Autotransporter-encoding sequences are phylogenetically distributed among Escherichia coli clinical isolates and reference strains.

Restieri C, Garriss G, Locas MC, Dozois CM.

Appl Environ Microbiol. 2007 Mar;73(5):1553-62. Epub 2007 Jan 12.

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