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Humoral immune resp...
Humoral immune response to Aggregatibacter actinomycetemcomitans leukotoxin
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- Brage, Monica (author)
- Umeå universitet,Institutionen för odontologi,Aa-gruppen
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- Holmlund, Anders (author)
- Uppsala universitet,Umeå universitet,Institutionen för odontologi,Institutionen för medicinska vetenskaper,Centrum för klinisk forskning, Gävleborg
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- Johansson, Anders (author)
- Umeå universitet,Institutionen för odontologi,Aa-gruppen
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(creator_code:org_t)
- 2010-12-01
- 2011
- English.
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In: Journal of Periodontal Research. - : Wiley. - 0022-3484 .- 1600-0765. ; 46:2, s. 170-175
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Abstract
Subject headings
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- Background and Objective: Periodontal disease is an inflammatory condition caused by bacterial infections that result in loss of the tooth supporting tissue. The periodontal pathogens produce virulence factors with capacity to affect the host immune response. Aggregatibacter actinomycetemcomitans is a periodontal pathogen that produces a leukotoxin that specifically affects human leukocytes. The aims of the present study were to examine the presence and function of systemic antibodies to the leukotoxin. Material and Methods: One hundred and ninety-seven middle-aged (57 ± 5 years) Swedes with well-documented periodontal status and medical factors related to cardiovascular diseases were studied. These data have been published previously. The serum samples were examined for the presence of leukotoxin antibodies by western blot and the capacity to neutralize leukotoxicity in an activity assay with leukotoxin and cultured leukemic cells. Results: The results showed a high prevalence (57%) of antibodies against A. actinomycetemcomitans leukotoxin in the analyzed population. These antibodies were correlated with leukotoxin neutralizing capacity as well as with the ELISA titers of A. actinomycetemcomitans-specific IgA and IgG. In addition, high levels of leukotoxin antibodies were correlated with increasing age, but not with periodontal disease parameters or cardiovascular risk factors. Conclusion: Systemic antibodies against A. actionmycetemcomitans leukotoxin were common in this adult Swedish population. These antibodies might contribute to limit the systemic effects of the infection.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Mikrobiologi inom det medicinska området (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Microbiology in the medical area (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Odontologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Dentistry (hsv//eng)
Keyword
- Aggregatibacter actinomycetemcomitans;systemic immunoreactivity; leukotoxin;periodontitis
- Microbiology, immunology, infectious diseases
- Mikrobiologi, immunologi, infektionssjukdomar
- Infectious Diseases
- infektionssjukdomar
- Clinical Immunology
- klinisk immunologi
- ODONTOLOGY
Publication and Content Type
- ref (subject category)
- art (subject category)
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