Cytolysins of Actinobacillus pleuropneumoniae serotype 9
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چکیده
منابع مشابه
Influence of Actinobacillus pleuropneumoniae serotype 2 and its cytolysins on porcine neutrophil chemiluminescence.
The effects of Actinobacillus pleuropneumoniae serotype 2 and its metabolites on the oxidative activity of porcine neutrophils were studied by using a chemiluminescence technique. Viable A. pleuropneumoniae stimulated the production of oxygen radicals by neutrophils. After having reached a peak value, the oxidative activity decreased until a total inhibition of the oxidative activity of the neu...
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We describe here isolation of genetically atypical serotype 6 Actinobacillus pleuropneumoniae in Japan indistinguishable by the multiplex PCR that can discriminate between immunologically cross-reactive serotypes 3, 6 and 8. Nucleotide sequence analysis of capsular export and biosynthesis genes revealed that the atypical isolates have capsular polysaccharide export and synthesis gene sequences ...
متن کاملAntibiofilm Activity of Actinobacillus pleuropneumoniae Serotype 5 Capsular Polysaccharide
Cell-free extracts isolated from colony biofilms of Actinobacillus pleuropneumoniae serotype 5 were found to inhibit biofilm formation by Staphylococcus aureus, S. epidermidis and Aggregatibacter actinomycetemcomitans, but not by A. pleuropneumoniae serotype 5 itself, in a 96-well microtiter plate assay. Physical and chemical analyses indicated that the antibiofilm activity in the extract was d...
متن کاملInfluence of calcium on secretion and activity of the cytolysins of Actinobacillus pleuropneumoniae.
In vitro production of a secreted hemolytic cytolysin of Actinobacillus pleuropneumoniae has been reported to be dependent on the presence of calcium in culture media. This is not the case with Escherichia coli hemolysins, however, where calcium has been shown to be required only for activation and binding to target cells. Because the cytolysins of A. pleuropneumoniae have structural and functi...
متن کاملSerological characterisation of Actinobacillus pleuropneumoniae
In the most recent study on the serological characterisation of Australian isolates of A pleuropneumoniae, a large percentage of isolates either gave cross-reactions with serovars 3 and 6 (47/256 isolates) or no reaction at all (91/256 isolates).11 This study was performed using slide agglutination and GD, techniques which had performed effectively in the past.5 The high incidence of isolates t...
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ژورنال
عنوان ژورنال: Infection and Immunity
سال: 1991
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.59.12.4497-4504.1991