Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
FIMBRIAE AND THE HEMAGGLUTINATING ADHESIN HA-AG2 MEDIATE ADHESION OF PORPHYROMONAS-GINGIVALIS TO EPITHELIAL-CELLS
Autore:
DU L; PELLENMUSSI P; CHANDAD F; MOUTON C; BONNAUREMALLET M;
Indirizzi:
UNIV RENNES 1,EQUIPE BIOL BUCCALE,UPRES,EA 1256,2 PL PASTEUR F-35000 RENNES FRANCE UNIV RENNES 1,EQUIPE BIOL BUCCALE,UPRES,EA 1256 F-35000 RENNES FRANCE UNIV LAVAL,GRP RECH ECOL BUCCALE LAVAL PQ G1K 7P4 CANADA
Titolo Testata:
Infection and immunity
fascicolo: 9, volume: 65, anno: 1997,
pagine: 3875 - 3881
SICI:
0019-9567(1997)65:9<3875:FATHAH>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
BACTEROIDES-GINGIVALIS; ORAL-SURFACES; PROTEINS; ASACCHAROLYTICUS; MELANINOGENICUS; COLONIZATION; IDENTIFICATION; ATTACHMENT; ADHERENCE; PROTEASE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
37
Recensione:
Indirizzi per estratti:
Citazione:
L. Du et al., "FIMBRIAE AND THE HEMAGGLUTINATING ADHESIN HA-AG2 MEDIATE ADHESION OF PORPHYROMONAS-GINGIVALIS TO EPITHELIAL-CELLS", Infection and immunity, 65(9), 1997, pp. 3875-3881

Abstract

The mechanisms by which Porphyromonas gingivalis, a gram-negative anaerobic bacterium, is pathogenic for the periodontium remain largely hypothetical, Invasion of host tissues by P. gingivalis is believed to require adhesion of the bacterium to host cells, The aim of this study was to use monoclonal antibodies (MAbs) to characterize the bacterial cell surface component(s) acting as a ligand binding to a receptor on epithelial cells, Surface antigens of P. gingivalis ATCC 33277 were obtained as a glass bead-EDTA extract (GEE), and antiserum against the GEE was produced in rabbits. Epithelial cell membrane proteins (ECMP) were prepared from a homogenate of the SK-MES-1 cell line with Triton X-100, The antigen/ligand profile of GEE was resolved by crossed immunoaffinity electrophoresis by using ECMP in the first-dimension gel, Themigration of one immunoprecipitate (IF) was retarded, indicating a ligand-receptor interaction between a surface antigen of P. gingivalis and a complementary binding site on the epithelial cell membrane, The corresponding IP in the GBE/anti-GBE immunoelectrophoresis profile was excised from replicate gels to immunize mice for production of MAbs specific for the bacterial ligand. Five MAbs were obtained and tested for reactivity with GEE in immunoblots and for inhibition of the interaction between GEE and ECMP, Immunoblots revealed polypeptides at 28, 42, 43, and 49 kDa. Inhibition tests were positive for all five MAbs, These results are conclusive evidence that the MAbs recognize functionalepitopes involved in the adherence of P. gingivalis to epithelial cells and that the adhesins are likely associated with fimbriae and the hemagglutinating adhesin HA-Ag2.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 06:23:31