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SpoT Induces Intracellular Salmonella Virulence Programs in the Phagosome.

Fitzsimmons LF, Liu L, Kant S, Kim JS, Till JK, Jones-Carson J, Porwollik S, McClelland M, Vazquez-Torres A.

mBio. 2020 Feb 25;11(1). pii: e03397-19. doi: 10.1128/mBio.03397-19.


Reactive nitrogen species in host-bacterial interactions.

Fang FC, Vázquez-Torres A.

Curr Opin Immunol. 2019 Oct;60:96-102. doi: 10.1016/j.coi.2019.05.008. Epub 2019 Jun 12. Review.


DksA-DnaJ redox interactions provide a signal for the activation of bacterial RNA polymerase.

Kim JS, Liu L, Fitzsimmons LF, Wang Y, Crawford MA, Mastrogiovanni M, Trujillo M, Till JKA, Radi R, Dai S, Vázquez-Torres A.

Proc Natl Acad Sci U S A. 2018 Dec 11;115(50):E11780-E11789. doi: 10.1073/pnas.1813572115. Epub 2018 Nov 14.


SODB1 is essential for Leishmania major infection of macrophages and pathogenesis in mice.

Davenport BJ, Martin CG, Beverley SM, Orlicky DJ, Vazquez-Torres A, Morrison TE.

PLoS Negl Trop Dis. 2018 Oct 29;12(10):e0006921. doi: 10.1371/journal.pntd.0006921. eCollection 2018 Oct.


Zinc-dependent substrate-level phosphorylation powers Salmonella growth under nitrosative stress of the innate host response.

Fitzsimmons L, Liu L, Porwollik S, Chakraborty S, Desai P, Tapscott T, Henard C, McClelland M, Vazquez-Torres A.

PLoS Pathog. 2018 Oct 26;14(10):e1007388. doi: 10.1371/journal.ppat.1007388. eCollection 2018 Oct.


Guanosine tetraphosphate relieves the negative regulation of Salmonella pathogenicity island-2 gene transcription exerted by the AT-rich ssrA discriminator region.

Tapscott T, Kim JS, Crawford MA, Fitzsimmons L, Liu L, Jones-Carson J, Vázquez-Torres A.

Sci Rep. 2018 Jun 21;8(1):9465. doi: 10.1038/s41598-018-27780-9.


Salmonella enterica serovar Typhimurium has three transketolase enzymes contributing to the pentose phosphate pathway.

Shaw JA, Henard CA, Liu L, Dieckman LM, Vázquez-Torres A, Bourret TJ.

J Biol Chem. 2018 Jul 20;293(29):11271-11282. doi: 10.1074/jbc.RA118.003661. Epub 2018 May 30.


Salmonella Reprograms Nucleotide Metabolism in Its Adaptation to Nitrosative Stress.

Fitzsimmons LF, Liu L, Kim JS, Jones-Carson J, Vázquez-Torres A.

mBio. 2018 Feb 27;9(1). pii: e00211-18. doi: 10.1128/mBio.00211-18.


Less Is Best in the Convergent Evolution of Typhoidal Salmonella.

Vázquez-Torres A.

Cell Host Microbe. 2018 Feb 14;23(2):151-153. doi: 10.1016/j.chom.2018.01.009.


Magnesium homeostasis protects Salmonella against nitrooxidative stress.

Bourret TJ, Liu L, Shaw JA, Husain M, Vázquez-Torres A.

Sci Rep. 2017 Nov 8;7(1):15083. doi: 10.1038/s41598-017-15445-y.


Intestinal Epithelial Ecto-5'-Nucleotidase (CD73) Regulates Intestinal Colonization and Infection by Nontyphoidal Salmonella.

Kao DJ, Saeedi BJ, Kitzenberg D, Burney KM, Dobrinskikh E, Battista KD, Vázquez-Torres A, Colgan SP, Kominsky DJ.

Infect Immun. 2017 Sep 20;85(10). pii: e01022-16. doi: 10.1128/IAI.01022-16. Print 2017 Oct.


Cytochrome bd-Dependent Bioenergetics and Antinitrosative Defenses in Salmonella Pathogenesis.

Jones-Carson J, Husain M, Liu L, Orlicky DJ, Vázquez-Torres A.

mBio. 2016 Dec 20;7(6). pii: e02052-16. doi: 10.1128/mBio.02052-16.


Discrimination and Integration of Stress Signals by Pathogenic Bacteria.

Fang FC, Frawley ER, Tapscott T, Vázquez-Torres A.

Cell Host Microbe. 2016 Aug 10;20(2):144-153. doi: 10.1016/j.chom.2016.07.010. Review.


Bacterial Stress Responses during Host Infection.

Fang FC, Frawley ER, Tapscott T, Vázquez-Torres A.

Cell Host Microbe. 2016 Aug 10;20(2):133-43. doi: 10.1016/j.chom.2016.07.009. Review.


Influence of Gelatin-Thrombin Matrix Tissue Sealant on Bacterial Colony Formation and Risk of Pelvic Infection.

Jarrett MJ, Vázquez-Torres A, Frank DN, McCollister BD, Henthorn PK, Ir D, Sheeder J, Guy MS, Anwar HQ, Behbakht K.

Infect Dis Obstet Gynecol. 2016;2016:2649708. doi: 10.1155/2016/2649708. Epub 2016 Apr 21.


Redox-Active Sensing by Bacterial DksA Transcription Factors Is Determined by Cysteine and Zinc Content.

Crawford MA, Tapscott T, Fitzsimmons LF, Liu L, Reyes AM, Libby SJ, Trujillo M, Fang FC, Radi R, Vázquez-Torres A.

mBio. 2016 Apr 19;7(2):e02161-15. doi: 10.1128/mBio.02161-15.


DksA-Dependent Transcriptional Regulation in Salmonella Experiencing Nitrosative Stress.

Crawford MA, Henard CA, Tapscott T, Porwollik S, McClelland M, Vázquez-Torres A.

Front Microbiol. 2016 Mar 31;7:444. doi: 10.3389/fmicb.2016.00444. eCollection 2016.


Antioxidant Defense by Thioredoxin Can Occur Independently of Canonical Thiol-Disulfide Oxidoreductase Enzymatic Activity.

Song M, Kim JS, Liu L, Husain M, Vázquez-Torres A.

Cell Rep. 2016 Mar 29;14(12):2901-11. doi: 10.1016/j.celrep.2016.02.066. Epub 2016 Mar 17.


Nitrate, nitrite and nitric oxide reductases: from the last universal common ancestor to modern bacterial pathogens.

Vázquez-Torres A, Bäumler AJ.

Curr Opin Microbiol. 2016 Feb;29:1-8. doi: 10.1016/j.mib.2015.09.002. Epub 2015 Sep 29. Review.


A Burkholderia pseudomallei colony variant necessary for gastric colonization.

Austin CR, Goodyear AW, Bartek IL, Stewart A, Sutherland MD, Silva EB, Zweifel A, Vitko NP, Tuanyok A, Highnam G, Mittelman D, Keim P, Schweizer HP, Vázquez-Torres A, Dow SW, Voskuil MI.

mBio. 2015 Feb 3;6(1). pii: e02462-14. doi: 10.1128/mBio.02462-14.


Nitric oxide from IFNγ-primed macrophages modulates the antimicrobial activity of β-lactams against the intracellular pathogens Burkholderia pseudomallei and Nontyphoidal Salmonella.

Jones-Carson J, Zweifel AE, Tapscott T, Austin C, Brown JM, Jones KL, Voskuil MI, Vázquez-Torres A.

PLoS Negl Trop Dis. 2014 Aug 14;8(8):e3079. doi: 10.1371/journal.pntd.0003079. eCollection 2014 Aug.


The 4-cysteine zinc-finger motif of the RNA polymerase regulator DksA serves as a thiol switch for sensing oxidative and nitrosative stress.

Henard CA, Tapscott T, Crawford MA, Husain M, Doulias PT, Porwollik S, Liu L, McClelland M, Ischiropoulos H, Vázquez-Torres A.

Mol Microbiol. 2014 Feb;91(4):790-804. doi: 10.1111/mmi.12498. Epub 2014 Jan 7.


The ABC-type efflux pump MacAB protects Salmonella enterica serovar typhimurium from oxidative stress.

Bogomolnaya LM, Andrews KD, Talamantes M, Maple A, Ragoza Y, Vazquez-Torres A, Andrews-Polymenis H.

mBio. 2013 Oct 29;4(6):e00630-13. doi: 10.1128/mBio.00630-13.


Ferric uptake regulator-dependent antinitrosative defenses in Salmonella enterica serovar Typhimurium pathogenesis.

Husain M, Jones-Carson J, Liu L, Song M, Saah JR, Troxell B, Mendoza M, Hassan H, Vázquez-Torres A.

Infect Immun. 2014 Jan;82(1):333-40. doi: 10.1128/IAI.01201-13. Epub 2013 Oct 28.


Low-molecular-weight thiol-dependent antioxidant and antinitrosative defences in Salmonella pathogenesis.

Song M, Husain M, Jones-Carson J, Liu L, Henard CA, Vázquez-Torres A.

Mol Microbiol. 2013 Feb;87(3):609-22. doi: 10.1111/mmi.12119. Epub 2012 Dec 21.


Nitric oxide-dependent killing of aerobic, anaerobic and persistent Burkholderia pseudomallei.

Jones-Carson J, Laughlin JR, Stewart AL, Voskuil MI, Vázquez-Torres A.

Nitric Oxide. 2012 Jun 30;27(1):25-31. doi: 10.1016/j.niox.2012.04.001. Epub 2012 Apr 10.


DksA-dependent resistance of Salmonella enterica serovar Typhimurium against the antimicrobial activity of inducible nitric oxide synthase.

Henard CA, Vázquez-Torres A.

Infect Immun. 2012 Apr;80(4):1373-80. doi: 10.1128/IAI.06316-11. Epub 2012 Feb 6.


Redox active thiol sensors of oxidative and nitrosative stress.

Vázquez-Torres A.

Antioxid Redox Signal. 2012 Nov 1;17(9):1201-14. doi: 10.1089/ars.2012.4522. Epub 2012 Mar 15. Review.


Nitric oxide and salmonella pathogenesis.

Henard CA, Vázquez-Torres A.

Front Microbiol. 2011 Apr 20;2:84. doi: 10.3389/fmicb.2011.00084. eCollection 2011.


Alanine racemase mutants of Burkholderia pseudomallei and Burkholderia mallei and use of alanine racemase as a non-antibiotic-based selectable marker.

Zajdowicz SL, Jones-Carson J, Vazquez-Torres A, Jobling MG, Gill RE, Holmes RK.

PLoS One. 2011;6(6):e21523. doi: 10.1371/journal.pone.0021523. Epub 2011 Jun 24.


Adaptation and antibiotic tolerance of anaerobic Burkholderia pseudomallei.

Hamad MA, Austin CR, Stewart AL, Higgins M, Vázquez-Torres A, Voskuil MI.

Antimicrob Agents Chemother. 2011 Jul;55(7):3313-23. doi: 10.1128/AAC.00953-10. Epub 2011 May 2.


Analysis of the ArcA regulon in anaerobically grown Salmonella enterica sv. Typhimurium.

Evans MR, Fink RC, Vazquez-Torres A, Porwollik S, Jones-Carson J, McClelland M, Hassan HM.

BMC Microbiol. 2011 Mar 21;11:58. doi: 10.1186/1471-2180-11-58.


Nitric oxide protects bacteria from aminoglycosides by blocking the energy-dependent phases of drug uptake.

McCollister BD, Hoffman M, Husain M, Vázquez-Torres A.

Antimicrob Agents Chemother. 2011 May;55(5):2189-96. doi: 10.1128/AAC.01203-10. Epub 2011 Feb 22.


Insertion of CTCF-binding sites into a first-generation adenovirus vector reduces the innate inflammatory response and prolongs transgene expression.

Schaack J, Qiao L, Walkiewicz MP, Stonehouse M, Engel DA, Vazquez-Torres A, Nordeen SK, Shao J, Moorhead JW.

Virology. 2011 Mar 30;412(1):136-45. doi: 10.1016/j.virol.2010.12.053. Epub 2011 Jan 26.


Fur negatively regulates hns and is required for the expression of HilA and virulence in Salmonella enterica serovar Typhimurium.

Troxell B, Sikes ML, Fink RC, Vazquez-Torres A, Jones-Carson J, Hassan HM.

J Bacteriol. 2011 Jan;193(2):497-505. doi: 10.1128/JB.00942-10. Epub 2010 Nov 12.


Control of redox balance by the stringent response regulatory protein promotes antioxidant defenses of Salmonella.

Henard CA, Bourret TJ, Song M, Vázquez-Torres A.

J Biol Chem. 2010 Nov 19;285(47):36785-93. doi: 10.1074/jbc.M110.160960. Epub 2010 Sep 17.


Redox sensor SsrB Cys203 enhances Salmonella fitness against nitric oxide generated in the host immune response to oral infection.

Husain M, Jones-Carson J, Song M, McCollister BD, Bourret TJ, Vázquez-Torres A.

Proc Natl Acad Sci U S A. 2010 Aug 10;107(32):14396-401. doi: 10.1073/pnas.1005299107. Epub 2010 Jul 26.


Analysis of nitric oxide-dependent antimicrobial actions in macrophages and mice.

Vazquez-Torres A, Stevanin T, Jones-Carson J, Castor M, Read RC, Fang FC.

Methods Enzymol. 2008;437:521-38. doi: 10.1016/S0076-6879(07)37026-2. Review.


Inactivation of [Fe-S] metalloproteins mediates nitric oxide-dependent killing of Burkholderia mallei.

Jones-Carson J, Laughlin J, Hamad MA, Stewart AL, Voskuil MI, Vázquez-Torres A.

PLoS One. 2008 Apr 9;3(4):e1976. doi: 10.1371/journal.pone.0001976.


Nitric oxide antagonizes the acid tolerance response that protects Salmonella against innate gastric defenses.

Bourret TJ, Porwollik S, McClelland M, Zhao R, Greco T, Ischiropoulos H, Vázquez-Torres A.

PLoS One. 2008 Mar 19;3(3):e1833. doi: 10.1371/journal.pone.0001833.


Nitric oxide evokes an adaptive response to oxidative stress by arresting respiration.

Husain M, Bourret TJ, McCollister BD, Jones-Carson J, Laughlin J, Vázquez-Torres A.

J Biol Chem. 2008 Mar 21;283(12):7682-9. doi: 10.1074/jbc.M708845200. Epub 2008 Jan 15.


N(2)O(3) enhances the nitrosative potential of IFNgamma-primed macrophages in response to Salmonella.

McCollister BD, Myers JT, Jones-Carson J, Husain M, Bourret TJ, Vázquez-Torres A.

Immunobiology. 2007;212(9-10):759-69. Epub 2007 Dec 3.


Constitutive acid sphingomyelinase enhances early and late macrophage killing of Salmonella enterica serovar Typhimurium.

McCollister BD, Myers JT, Jones-Carson J, Voelker DR, Vázquez-Torres A.

Infect Immun. 2007 Nov;75(11):5346-52. Epub 2007 Aug 13.


Systemic CD8 T-cell memory response to a Salmonella pathogenicity island 2 effector is restricted to Salmonella enterica encountered in the gastrointestinal mucosa.

Jones-Carson J, McCollister BD, Clambey ET, Vázquez-Torres A.

Infect Immun. 2007 Jun;75(6):2708-16. Epub 2007 Apr 2.


FNR is a global regulator of virulence and anaerobic metabolism in Salmonella enterica serovar Typhimurium (ATCC 14028s).

Fink RC, Evans MR, Porwollik S, Vazquez-Torres A, Jones-Carson J, Troxell B, Libby SJ, McClelland M, Hassan HM.

J Bacteriol. 2007 Mar;189(6):2262-73. Epub 2007 Jan 12.


Maintenance of nitric oxide and redox homeostasis by the salmonella flavohemoglobin hmp.

Bang IS, Liu L, Vazquez-Torres A, Crouch ML, Stamler JS, Fang FC.

J Biol Chem. 2006 Sep 22;281(38):28039-47. Epub 2006 Jul 26.


Nitric Oxide in Salmonella and Escherichia coli Infections.

VÁzquez-Torres A, Fang FC.

EcoSal Plus. 2005 Nov;1(2). doi: 10.1128/ecosalplus.8.8.8.


Repression of SPI2 transcription by nitric oxide-producing, IFNgamma-activated macrophages promotes maturation of Salmonella phagosomes.

McCollister BD, Bourret TJ, Gill R, Jones-Carson J, Vázquez-Torres A.

J Exp Med. 2005 Sep 5;202(5):625-35. Epub 2005 Aug 29.


Suppressor alphabeta T lymphocytes control innate resistance to endotoxic shock.

Jones-Carson J, Fantuzzi G, Siegmund B, Dinarello C, Tracey KJ, Wang H, Fang FC, Vazquez-Torres A.

J Infect Dis. 2005 Sep 15;192(6):1039-46. Epub 2005 Aug 4.


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