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  • 1
    ISSN: 1420-9071
    Keywords: Porphyromonas gingivalis ; lipopolysaccharide (LPS) ; C3H/HeJ mice ; B-cells ; protein phosphorylation ; cytokine production
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Porphyromonas gingivalis 381 lipopolysaccharide (LPS) definitely exhibited mitogenic activity in purified B-cells, separated from spleens of LPS-responsive C3H/HeN mice and LPS-non-responsive C3H/HeJ mice by using a magnetic cell sorting system. The mitogenic activity induced byP. gingivalis LPS was incompletely inhibited by polymyxin B.P. gingivalis LPS also induced a higher production of interleukin-6 (IL-6) in splenic B-cells of C3H/HeN mice as compared withEscherichia coli LPS. Furthermore,P. gingivalis LPS, but notE. coli LPS, induced definite IL-6 production in C3H/HeJ mice.P. gingivalis LPS increased tyrosine, serine/threonine phosphorylation of proteins with various major induced bands in splenic B-cells of both C3H/HeN and C3H/HeJ mice. Additionally, radioiodinatedP. gingivalis LPS, similarly toE. coli LPS, bound to a 73-kDa protein on C3H/HeJ as well as C3H/HeN B-cells. ThusP. gingivalis LPS may activate B-cells of C3H/HeJ as well as C3H/HeN mice via the LPS-specific binding protein on the cells.
    Type of Medium: Electronic Resource
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