Human epithelial cell death caused by Actinobacillus actinomycetemcomitans infection
نویسندگان
چکیده
منابع مشابه
Endocarditis caused by Actinobacillus actinomycetemcomitans.
Actinobacillus actinomycetemcomitans is a gram-negative coccobacillus which is a very rare cause of bacterial endocarditis. Preexisting cardiac lesions are a main contributing factor, and antibiotic prophylaxis has long been felt necessary before dental or other manipulation to prevent endocarditis. Penicillin in combination with an aminoglycoside has been the most often used treatment regimen....
متن کاملRequirements for invasion of epithelial cells by Actinobacillus actinomycetemcomitans.
Actinobacillus actinomycetemcomitans, an oral bacterium implicated in human periodontal disease, was recently demonstrated to invade cultured epithelial cells (D. H. Meyer, P. K. Sreenivasan, and P. M. Fives-Taylor, Infect. Immun. 59:2719-2726, 1991). This report characterizes the requirements for invasion of KB cells by A. actinomycetemcomitans. The roles of bacterial and host factors were inv...
متن کاملAdhesion of Actinobacillus actinomycetemcomitans to a human oral cell line.
Two quantitative, rapid assays were developed to study the adhesion of Actinobacillus actinomycetemcomitans, an oral bacterium associated with periodontal disease, to human epithelial cells. The human oral carcinoma cell line KB was grown in microtiter plates, and adherent bacteria were detected by an enzyme-linked immunosorbent assay with purified anti-A. actinomycetemcomitans serum and horser...
متن کاملSecretion of RTX leukotoxin by Actinobacillus actinomycetemcomitans.
Actinobacillus actinomycetemcomitans, the etiologic agent for localized juvenile periodontitis and certain other human infections, such as endocarditis, expresses a leukotoxin that acts on polymorphonuclear leukocytes and macrophages. Leukotoxin is a member of the highly conserved repeat toxin (RTX) family of bacterial toxins expressed by a variety of pathogenic bacteria. While the RTX toxins o...
متن کاملCharacteristics of adherence of Actinobacillus actinomycetemcomitans to epithelial cells.
Actinobacillus actinomycetemcomitans smooth variants [SUNY 75(S), SUNY 465, 652] were investigated for their ability to adhere to KB epithelial cells. Both the type of medium (broth versus agar) and anaerobicity influenced adherence levels and cell surface characteristics. Optimal adherence was observed with all three strains after growth of the bacterial cells in broth under anaerobic conditio...
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ژورنال
عنوان ژورنال: Journal of Medical Microbiology
سال: 2000
ISSN: 0022-2615,1473-5644
DOI: 10.1099/0022-1317-49-8-739