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Outbred mice with long-term Helicobacter felis infection develop both gastric lymphoid tissue and glandular hyperplastic lesions.
Ferrero RL, Avé P, Radcliff FJ, Labigne A, Huerre MR. Ferrero RL, et al. J Pathol. 2000 Jul;191(3):333-40. doi: 10.1002/1096-9896(2000)9999:9999<::AID-PATH619>3.0.CO;2-H. J Pathol. 2000. PMID: 10878557
Swiss mice (n=10 per group) were either inoculated with a suspension of H. felis or left untreated. H. felis-inoculated mice and age-matched control animals were killed 13 months later. ...Although prominent lymphoid follicles were present in the tissues of all infected an …
Swiss mice (n=10 per group) were either inoculated with a suspension of H. felis or left untreated. H. felis-inoculated mice and age- …
Reduced activation of inflammatory responses in host cells by mouse-adapted Helicobacter pylory isolates.
Philpott DJ, Belaid D, Troubadour P, Thiberge JM, Tankovic J, Labigne A, Ferrero RL. Philpott DJ, et al. Cell Microbiol. 2002 May;4(5):285-96. doi: 10.1046/j.1462-5822.2002.00189.x. Cell Microbiol. 2002. PMID: 12064285
Six isolates were shown to harbour a complete cag PAI and to induce NF- kappa B activation and IL-8 secretion in AGS cells. Of the eight isolates that spontaneously colonized mice, six had a cag PAI(-) genotype and did not induce pro-inflammatory responses in these …
Six isolates were shown to harbour a complete cag PAI and to induce NF- kappa B activation and IL-8 secretion in AGS cells. Of the ei …
From array-based hybridization of Helicobacter pylori isolates to the complete genome sequence of an isolate associated with MALT lymphoma.
Thiberge JM, Boursaux-Eude C, Lehours P, Dillies MA, Creno S, Coppée JY, Rouy Z, Lajus A, Ma L, Burucoa C, Ruskoné-Foumestraux A, Courillon-Mallet A, De Reuse H, Boneca IG, Lamarque D, Mégraud F, Delchier JC, Médigue C, Bouchier C, Labigne A, Raymond J. Thiberge JM, et al. Among authors: labigne a. BMC Genomics. 2010 Jun 10;11:368. doi: 10.1186/1471-2164-11-368. BMC Genomics. 2010. PMID: 20537153 Free PMC article.
Using macro-arrays to study routes of infection of Helicobacter pylori in three families.
Raymond J, Thiberge JM, Kalach N, Bergeret M, Dupont C, Labigne A, Dauga C. Raymond J, et al. Among authors: labigne a. PLoS One. 2008 May 21;3(5):e2259. doi: 10.1371/journal.pone.0002259. PLoS One. 2008. PMID: 18493595 Free PMC article.
Roles of alpha and beta carbonic anhydrases of Helicobacter pylori in the urease-dependent response to acidity and in colonization of the murine gastric mucosa.
Bury-Moné S, Mendz GL, Ball GE, Thibonnier M, Stingl K, Ecobichon C, Avé P, Huerre M, Labigne A, Thiberge JM, De Reuse H. Bury-Moné S, et al. Among authors: labigne a. Infect Immun. 2008 Feb;76(2):497-509. doi: 10.1128/IAI.00993-07. Epub 2007 Nov 19. Infect Immun. 2008. PMID: 18025096 Free PMC article.
Channel-mediated potassium uptake in Helicobacter pylori is essential for gastric colonization.
Stingl K, Brandt S, Uhlemann EM, Schmid R, Altendorf K, Zeilinger C, Ecobichon C, Labigne A, Bakker EP, de Reuse H. Stingl K, et al. EMBO J. 2007 Jan 10;26(1):232-41. doi: 10.1038/sj.emboj.7601471. Epub 2006 Dec 7. EMBO J. 2007. PMID: 17159901 Free PMC article.
A H. pylori DeltahpKchA mutant presented a strong growth defect at low K(+) concentration, which was compensated by KCl addition. ...These data show, for the first time, a biological function for a prokaryotic K(+) channel, as a K(+) uptake syst
A H. pylori DeltahpKchA mutant presented a strong growth defect at low K(+) concentration, which was compensated by KCl additi
Role of AmiA in the morphological transition of Helicobacter pylori and in immune escape.
Chaput C, Ecobichon C, Cayet N, Girardin SE, Werts C, Guadagnini S, Prévost MC, Mengin-Lecreulx D, Labigne A, Boneca IG. Chaput C, et al. PLoS Pathog. 2006 Sep;2(9):e97. doi: 10.1371/journal.ppat.0020097. PLoS Pathog. 2006. PMID: 17002496 Free PMC article.
The peptidoglycan (PG) layer is a major determinant of bacterial cell shape, and therefore we studied H. pylori PG structure during the morphological transition. ...Interestingly, a mutant strain with a mutation in the amiA gene, encoding a putative PG …
The peptidoglycan (PG) layer is a major determinant of bacterial cell shape, and therefore we studied H. pylori PG structure during t …
Deficiency in OGG1 protects against inflammation and mutagenic effects associated with H. pylori infection in mouse.
Touati E, Michel V, Thiberge JM, Avé P, Huerre M, Bourgade F, Klungland A, Labigne A. Touati E, et al. Helicobacter. 2006 Oct;11(5):494-505. doi: 10.1111/j.1523-5378.2006.00442.x. Helicobacter. 2006. PMID: 16961812
Study with the Big Blue mouse model has reported a mutagenic effect associated with the H. pylori infection, as a result in part of oxidative DNA damage. ...These data suggest for the OGG1deficiency a protective role against inflammation and genotoxicity asso …
Study with the Big Blue mouse model has reported a mutagenic effect associated with the H. pylori infection, as a result in pa …
Responsiveness to acidity via metal ion regulators mediates virulence in the gastric pathogen Helicobacter pylori.
Bury-Moné S, Thiberge JM, Contreras M, Maitournam A, Labigne A, De Reuse H. Bury-Moné S, et al. Mol Microbiol. 2004 Jul;53(2):623-38. doi: 10.1111/j.1365-2958.2004.04137.x. Mol Microbiol. 2004. PMID: 15228539
Genes encoding subunits of the F0F1 ATPase and of a newly identified Na+/H+ antiporter (NhaC-HP0946) were downregulated, revealing that this bacterium uses original mechanisms to control proton entry. ...Finally, a nikR-fur mutant is attenuated in the mouse model, e …
Genes encoding subunits of the F0F1 ATPase and of a newly identified Na+/H+ antiporter (NhaC-HP0946) were downregulated, revealing th …
Presence of active aliphatic amidases in Helicobacter species able to colonize the stomach.
Bury-Moné S, Skouloubris S, Dauga C, Thiberge JM, Dailidiene D, Berg DE, Labigne A, De Reuse H. Bury-Moné S, et al. Infect Immun. 2003 Oct;71(10):5613-22. doi: 10.1128/iai.71.10.5613-5622.2003. Infect Immun. 2003. PMID: 14500481 Free PMC article.
Ammonia production is of great importance for the gastric pathogen Helicobacter pylori as a nitrogen source, as a compound protecting against gastric acidity, and as a cytotoxic molecule. In addition to urease, H. pylori possesses two aliphatic amidases respo …
Ammonia production is of great importance for the gastric pathogen Helicobacter pylori as a nitrogen source, as a compound pro …
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