Corynebacterium Diphtheriae and Related Toxigenic Species 2013
DOI: 10.1007/978-94-007-7624-1_2
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Corynebacterium diphtheriae, Corynebacterium ulcerans and Corynebacterium pseudotuberculosis—General Aspects

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Cited by 11 publications
(6 citation statements)
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“…The tox gene is found in corynebacteriophage regions: β tox + , γ tox + , and ω tox + , inside the chromosomes of C. diphtheriae, C. ulcerans , and C. pseudotuberculosis , but in this last one just in the biovar equi. Chromosomal genes interfere directly in Diphtheria Toxin (DT) expression and may cause, for example, an increase of DT production resulting from a low intracellular amount of iron due to inhibition of the regulatory dtx R gene (Guaraldi et al, 2014 ). C. diphtheriae strains produce DT, which is responsible for inhibiting protein synthesis in eukaryotic cells.…”
Section: Virulence Factorsmentioning
confidence: 99%
“…The tox gene is found in corynebacteriophage regions: β tox + , γ tox + , and ω tox + , inside the chromosomes of C. diphtheriae, C. ulcerans , and C. pseudotuberculosis , but in this last one just in the biovar equi. Chromosomal genes interfere directly in Diphtheria Toxin (DT) expression and may cause, for example, an increase of DT production resulting from a low intracellular amount of iron due to inhibition of the regulatory dtx R gene (Guaraldi et al, 2014 ). C. diphtheriae strains produce DT, which is responsible for inhibiting protein synthesis in eukaryotic cells.…”
Section: Virulence Factorsmentioning
confidence: 99%
“…Diphtheria toxin (DT)-producing Corynebacterium ulcerans causes diphtheria in humans ( 1 ). DT is encoded by a DT gene ( tox )-positive prophage in the chromosome ( 2 , 3 ); no C. ulcerans strain harboring two DT genes has been reported to date. Here, we report the complete genome sequence of C. ulcerans strain TSU-28, harboring two DT genes, which was isolated from a diphtheria patient in 2019 in Japan.…”
Section: Announcementmentioning
confidence: 99%
“…A imunidade contra C. pseudotuberculosis é similar a observada por microrganismos intracelulares como Mycobacterium tuberculosis, Mycobacterium bovis (Flynn, 1993;Pascual et al, 1995;Guaraldi et al, 2013) que acontece via ativação de linfócitos T auxiliares (CD4 + ) pelos macrófagos e células dendríticas, mais especificamente pelo perfil Th1; estas são responsáveis pela resposta imune específica, induzindo principalmente a secreção de citocinas como INF- e IL-12 , essas características vão conferir a resistência adaptativa em infecções causadas por bactérias intracelulares facultativas e lisar células infectadas (Kaufmann, 1993;Abbas, 2005;Vaz et al, 2007). Em caprinos e ovinos a resposta imune contra C. pseudotuberculosis envolve mecanismos da resposta imune inata e da resposta adaptativa (Joly, 1965a;Pépin et al, 1997;.…”
Section: Introductionunclassified