[A study on biological properties of fimbriae of A. viscosus. III. Adherence activity of fimbriae of A. viscosus].
OBJECTIVE
To investigate the adherence activity of two types of fimbriae of A. viscosus on tooth surface or with S. sanguis 34.


METHODS
The inhibited adherence tests, coaggregation tests and the inhibited coaggregation tests were done.


RESULTS
1. The purified type I and type II fimbriae inhibited the adherence of A. viscosus to salivary-treated hydroxyapatite (SHA) and the two specific IgG to type I and type II fimbriae blocked the adsorption of strain T14V, strain 5519 and strain 5951 to SHA; 2. Only type II fimbria indirectly mediated the visible agglutination of S. sanguis 34 and only IgG to type II fimbriae inhibited coaggregation of strain T14V and strain 5915 with S. sanguis 34.


CONCLUSIONS
Type I and type II fimbriae have adherence ability, and only type II fimbria has the agglutination activity. Additionally, the methods which were used to prepare fimbriae don't damage the biological activity of fimbriae.
Liu
T
T
College of Stomatology, West China University of Medical Sciences.
Li
W
W
Yue
S
S
D016924:Actinomyces viscosus / Q000472:pathogenicity* / Q000502:physiology; D000372:Agglutination Tests; D000818:Animals; D000907:Antibodies, Bacterial / Q000276:immunology; D001422:Bacterial Adhesion; D010861:Fimbriae, Bacterial / Q000502:physiology*; D008297:Male; D011817:Rabbits; D014774:Virulence
D000907:Antibodies, Bacterial