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Genomes and Genes | Deborah A HoganSummaryAffiliation: Dartmouth Medical School Country: USA Publications
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Publications
The Ras/cAMP/PKA signaling pathway and virulence in Candida albicansDeborah A Hogan
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, NH 03755, USA
Future Microbiol 4:1263-70. 2009..Here, we present an overview of the components of the pathway and their functions, how the pathway may be activated in human hosts and recent updates regarding the role of Ras/cAMP/PKA signaling in virulence...
Candida albicans developmental regulation: adenylyl cyclase as a coincidence detector of parallel signalsDeborah A Hogan
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, NH 03755, United States
Curr Opin Microbiol 14:682-6. 2011..We discuss the possibility that Cyr1 acts as a coincidence detector that tightly regulates fungal development in response to parallel environmental stimuli, and highlight ways in which this might occur...
Candida albicans-produced farnesol stimulates Pseudomonas quinolone signal production in LasR-defective Pseudomonas aeruginosa strainsCarla Cugini
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, NH 03755, USA
Microbiology 156:3096-107. 2010..aeruginosa. The finding that C. albicans, farnesol or ROS stimulate virulence factor production in lasR strains provides new insight into the virulence potential of these strains...
GbdR regulates Pseudomonas aeruginosa plcH and pchP transcription in response to choline catabolitesMatthew J Wargo
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, New Hampshire 03755, USA
Infect Immun 77:1103-11. 2009....
Farnesol and dodecanol effects on the Candida albicans Ras1-cAMP signalling pathway and the regulation of morphogenesisAmber Davis-Hanna
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, NH 03755, USA
Mol Microbiol 67:47-62. 2008..Because several cAMP-controlled outputs are affected by farnesol and dodecanol, our findings suggest that these compounds impact activity of the Ras1-Cdc35 pathway, thus leading to an alteration of C. albicans morphology...
Antifungal mechanisms by which a novel Pseudomonas aeruginosa phenazine toxin kills Candida albicans in biofilmsDiana K Morales
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, NH 03755, USA
Mol Microbiol 78:1379-92. 2010....
Farnesol, a common sesquiterpene, inhibits PQS production in Pseudomonas aeruginosaCarla Cugini
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, NH 03755, USA
Mol Microbiol 65:896-906. 2007..Related isoprenoid compounds, but not other long-chain alcohols, also inhibited PQS production at micromolar concen-trations, suggesting that related compounds may participate in interspecies interactions with P. aeruginosa...
Identification of two gene clusters and a transcriptional regulator required for Pseudomonas aeruginosa glycine betaine catabolismMatthew J Wargo
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, NH 03755, USA
J Bacteriol 190:2690-9. 2008..These studies provided important insight into both the mechanism and the regulation of the catabolism of GB in P. aeruginosa...
Farnesol induces hydrogen peroxide resistance in Candida albicans yeast by inhibiting the Ras-cyclic AMP signaling pathwayAurélie Deveau
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, NH 03755, USA
Eukaryot Cell 9:569-77. 2010..Our results suggest that farnesol effects on the Ras-adenylate cyclase cascade are responsible for many of the observed activities of this fungal signaling molecule...
PEPped up: induction of Candida albicans virulence by bacterial cell wall fragmentsAmy E Piispanen
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, NH 03755, USA
Cell Host Microbe 4:1-2. 2008..Conserved elements in human and fungal detection of muramyl dipeptides highlight a common ability to perceive proximal bacterial populations...
Linking quorum sensing regulation and biofilm formation by Candida albicansAurélie Deveau
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, NH, USA
Methods Mol Biol 692:219-33. 2011..albicans biofilm cells, perhaps rendering biofilms more sensitive to antibiotics. Here, we describe several methods for the analysis of the effects of farnesol on biofilm formation and function...
Roles of three transporters, CbcXWV, BetT1, and BetT3, in Pseudomonas aeruginosa choline uptake for catabolismAdel A Malek
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, New Hampshire 03755, USA
J Bacteriol 193:3033-41. 2011..This work represents the first systematic approach to unravel the mechanisms of choline uptake in P. aeruginosa, which has the most complex bacterial choline uptake systems characterized to date...
Pseudomonas aeruginosa-Candida albicans interactions: localization and fungal toxicity of a phenazine derivativeJane Gibson
Department of Microbiology and Immunology, Dartmouth Medical School, HB7550 Vail Building 208, Hanover, NH 03755, USA
Appl Environ Microbiol 75:504-13. 2009..These findings suggest that intracellular targeting of some phenazines may contribute to their toxicity and that this strategy could be useful in developing new antifungals...
Pseudomonas aeruginosa evasion of phagocytosis is mediated by loss of swimming motility and is independent of flagellum expressionEyal Amiel
Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire 03756, USA
Infect Immun 78:2937-45. 2010..These findings provide an explanation for the well-documented observation of nonmotility in clinical P. aeruginosa isolates and for how this phenotype confers upon the bacteria an advantage in the context of immune evasion...
Examination of Pseudomonas aeruginosa lasI regulation and 3-oxo-C12-homoserine lactone production using a heterologous Escherichia coli systemMatthew J Wargo
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, NH 03755, USA
FEMS Microbiol Lett 273:38-44. 2007..It is proposed that this system will be useful for the study of factors that impact lasI regulation and 3OC12HSL production, and for the examination of the role of LasI-produced AHLs in bacterial interactions with other organisms...
Fungal--bacterial interactions: a mixed bag of mingling microbesMatthew J Wargo
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, NH 03755, USA
Curr Opin Microbiol 9:359-64. 2006..Clinical studies, in combination with in vitro model systems, are necessary to understand how bacterial-fungal interactions impact human health...
Absence of membrane phosphatidylcholine does not affect virulence and stress tolerance phenotypes in the opportunistic pathogen Pseudomonas aeruginosaAdel A Malek
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, New Hampshire, United States of America
PLoS ONE 7:e30829. 2012..Membrane PC may serve a highly specific role during P. aeruginosa interactions with its eukaryotic hosts based on all the clinical strains tested retaining the ability to synthesize it during availability of choline...
Roles of Ras1 membrane localization during Candida albicans hyphal growth and farnesol responseAmy E Piispanen
Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, NH 03755, USA
Eukaryot Cell 10:1473-84. 2011..Our findings imply that Ras1 is farnesylated and palmitoylated, and that the Ras1 stimulation of adenylate cyclase-dependent phenotypes can occur in the absence of these lipid modifications...
Talking to themselves: autoregulation and quorum sensing in fungiDeborah A Hogan
Department of Microbiology and Immunology, HB7550, Dartmouth Medical School, Hanover NH 03755, USA
Eukaryot Cell 5:613-9. 2006
