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Titolo:
Immunoglobulin G response of periodontitis patients to Porphyromonas gingivalis capsular carbohydrate and lipopolysaccharide antigens
Autore:
Sims, TJ; Schifferle, RE; Ali, RW; Skaug, N; Page, RC;
Indirizzi:
Univ Washington, Res Ctr Oral Biol, Seattle, WA 98195 USA Univ WashingtonSeattle WA USA 98195 Ctr Oral Biol, Seattle, WA 98195 USA Univ Washington, Sch Dent, Dept Periodont, Seattle, WA 98195 USA Univ Washington Seattle WA USA 98195 ept Periodont, Seattle, WA 98195 USA Univ Washington, Sch Med, Dept Pathol, Seattle, WA 98195 USA Univ Washington Seattle WA USA 98195 , Dept Pathol, Seattle, WA 98195 USA SUNY Buffalo, Sch Dent Med, Buffalo, NY 14260 USA SUNY Buffalo Buffalo NYUSA 14260 lo, Sch Dent Med, Buffalo, NY 14260 USA Univ Bergen, Sch Dent, Dept Odontol Oral Microbiol, Bergen, Norway Univ Bergen Bergen Norway , Dept Odontol Oral Microbiol, Bergen, Norway
Titolo Testata:
ORAL MICROBIOLOGY AND IMMUNOLOGY
fascicolo: 4, volume: 16, anno: 2001,
pagine: 193 - 201
SICI:
0902-0055(200108)16:4<193:IGROPP>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
BACTEROIDES-GINGIVALIS; ADULT; PREVALENCE; PATHOGENS; SEROTYPES; ELISA; PORPHYROMONAS-(BACTEROIDES)-GINGIVALIS; POLYSACCHARIDE; HETEROGENEITY; ANTIBODIES;
Keywords:
IgG; Porphyromonas gingivalis; periodontitis; serotype; lipopolysaccharide; K antigen;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Sims, TJ Univ Washington, Reg Clin Dent Res Ctr, Box 357840, Seattle, WA 98195 USA Univ Washington Box 357840 Seattle WA USA 98195 tle, WA 98195 USA
Citazione:
T.J. Sims et al., "Immunoglobulin G response of periodontitis patients to Porphyromonas gingivalis capsular carbohydrate and lipopolysaccharide antigens", ORAL MICROB, 16(4), 2001, pp. 193-201

Abstract

Porphyromonas gingivalis clonal types that participate in periodontal infections express serologically distinct surface antigens. This investigation sought to determine whether serum antibodies titers against the serotype-specific capsular carbohydrate K antigen and lipopolysaccharide antigens of P. gingivalis might reveal which serotypes are most likely to be responsiblefor subgingival infections in subjects with adult periodontitis. Immunoglobulin G (IgG) titers to purified K antigen and lipopolysaccharide from different P. gingivalis strains were measured by ELISA for 28 healthy controls and 51 patients with periodontal pockets known to be infected with genetically and serologically distinct P. gingivalis clonal types. Titers to purified K antigen from strains W50, HG184, A7A1-28, 49417, HG1690 and HG1691, representing serotypes K1-K6, respectively, and lipopolysaccharide from strains 381, HC1691 and W50, representing serotypes O1-O3, respectively, were measured for all subjects. Chi-square likelihood ratios, Mann-Whitney tests and receiver-operating characterstic sensitivity-specificity plots were usedto compare the accuracy with which titer results for different target antigens classified subjects with or without disease. Results from assays targeting K2, K3, K4, K5, O1 and O2 generally gave poor diagnostic accuracy, whether evaluated separately or as summed titer pairs corresponding to the WO combinations actually expressed by the target antigen parent strains. Exceptions were O3 (from W50) and K5+O2 (both from HG1690), which gave moderate accuracy in classifying subjects. In contrast, highly significant diagnostic accuracy was achieved using individual K1 (W50) and K6 (HG1691) titer data and K1+O3 (W50) and K6+O2 (HG1691) titer sum values. These observations suggest that P. gingivalis clonal types expressing K/O serotypes matching those of W50 (K1/O3) and HG1691 (K6/O2) are more likely than others to participate in periodontal infections in adult periodontitis patients and thus are more likely than others to express relevant virulence factors.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 18:46:59