Coaggregation of Porphyromonas gingivalis and Fusobacterium nucleatum PK 1594 is mediated by capsular polysaccharide and lipopolysaccharide
| Autor: | M. N. Sela, Graciela Rosen |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Serotype
Lipopolysaccharide biology Lectin Fusobacteria biology.organism_classification Microbiology Galactoside Bacterial adhesin stomatognathic diseases chemistry.chemical_compound stomatognathic system chemistry Genetics biology.protein Fusobacterium nucleatum Molecular Biology Porphyromonas gingivalis |
| Zdroj: | FEMS Microbiology Letters. 256:304-310 |
| ISSN: | 1574-6968 0378-1097 |
| DOI: | 10.1111/j.1574-6968.2006.00131.x |
| Popis: | Previous reports have shown that coaggregation between Porphyromonas gingivalis and Fusobacterium nucleatum, two important periodontopathogens, is mediated by a galactoside on the surface of P. gingivalis and a lectin on F. nucleatum. In the present study, purified capsular polysaccharide (CPS) and lipopolysaccharide (LPS) of P. gingivalis PK 1924 (serotype K5) were found to be able to bind to F. nucleatum cells and to inhibit binding of F. nucleatum to P. gingivalis serotype K5. Sugar binding studies showed that the requirements for binding of P. gingivalis serotype K5 CPS and LPS to the F. nucleatum lectin are: the presence of a metal divalent ion, an axial free hydroxyl group at position 4 and free equatorial hydroxyl groups at position 3 and 6 of d-galactose. These data suggest that P. gingivalis serotype K5- CPS and LPS act as receptors mediating coaggregation between P. gingivalis and fusobacteria. |
| Databáze: | OpenAIRE |
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