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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1998-7-9
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pubmed:abstractText |
Mycobacterium bovis BCG (BCG) is a live vaccine used worldwide against tuberculosis. However, it has unfavourable side effects such as osteitis or osteomyelitis, and these sometimes lead to vertebral caries in some patients as a result of bone resorption. Osteoblasts might play a role in the bone resorption caused by BCG infection, because they are central cells in bone metabolism. Cultured osteoblast-like cell lines (MC3T3-E1) derived from C57BL mice susceptible to BCG infection cells were infected with BCG at several doses. Interestingly, internalization of BCG-enveloped phagosome-like membrane in osteoblast-like cells were observed by transmission electron microscopy (TEM). Owing to infection, the proliferation and alkaline phosphatase activity of the osteoblast-like cells were reduced in a dose-dependent manner. On the other hand, interleukin (IL)-6 production was considerably enhanced by infection. These results suggest that BCG infects osteoblasts, suppressing their proliferation and differentiation and inducing bone resorption, which may be related to osteitis/osteomyelitis and bone caries caused by BCG infection.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0300-9475
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
47
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
453-8
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:9627129-Animals,
pubmed-meshheading:9627129-Bone Resorption,
pubmed-meshheading:9627129-Cell Differentiation,
pubmed-meshheading:9627129-Cell Division,
pubmed-meshheading:9627129-Cell Line,
pubmed-meshheading:9627129-Interleukin-6,
pubmed-meshheading:9627129-Mice,
pubmed-meshheading:9627129-Mice, Inbred C57BL,
pubmed-meshheading:9627129-Mycobacterium bovis,
pubmed-meshheading:9627129-Osteoblasts,
pubmed-meshheading:9627129-Tuberculosis
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pubmed:year |
1998
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pubmed:articleTitle |
Internalization of Mycobacterium bovis Bacillus Calmette-Guérin into osteoblast-like MC3T3-E1 cells and bone resorptive responses of the cells against the infection.
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pubmed:affiliation |
Department of Orthodontics, Nagasaki University School of Dentistry, Sakamoto, Japan.
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pubmed:publicationType |
Journal Article
|