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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1996-6-24
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pubmed:abstractText |
We examined the role of IL-12 in host resistance to Cryptococcus neoformans using a murine model of pulmonary and disseminated infection. In this model, mice were infected intratracheally with viable yeast cells. Mice untreated with IL-12 allowed an uncontrolled multiplication of yeast cells in the lung with infiltrations of few inflammatory cells, and a cryptococcal dissemination to the brain and meningitis by 3 weeks, resulting in death of all animals within 4-6 weeks. IL-12, when administered from the day of tracheal infection for 7 days, induced a marked infiltration of inflammatory cells, consisting mostly of mononuclear cells, and significantly reduced the number of viable yeast cells in the lung. The treatment suppressed brain dissemination, as shown by a marked reduction of yeast cells in the brain and prevention of meningitis. These effects resulted in a significant increase in the survival rate of infected mice. In contrast, late administration of IL-12 commencing on day 7 after instillation of yeast cells failed to protect the mice against infection with C. neoformans. In further experiments, early administration of IL-12 markedly induced interferon-gamma (IFN-gamma) mRNA in the lungs of infected mice, while no IFN-gamma mRNA was detected without this treatment. Our results indicate that IL-12 is effective when administered in the early period of pulmonary cryptococcal infection.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0009-9104
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
104
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
208-14
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:8625510-Animals,
pubmed-meshheading:8625510-Base Sequence,
pubmed-meshheading:8625510-Cryptococcosis,
pubmed-meshheading:8625510-Cryptococcus neoformans,
pubmed-meshheading:8625510-Female,
pubmed-meshheading:8625510-Interferon-gamma,
pubmed-meshheading:8625510-Interleukin-12,
pubmed-meshheading:8625510-Lung,
pubmed-meshheading:8625510-Lung Diseases, Fungal,
pubmed-meshheading:8625510-Meningitis, Cryptococcal,
pubmed-meshheading:8625510-Mice,
pubmed-meshheading:8625510-Mice, Inbred BALB C,
pubmed-meshheading:8625510-Mice, Inbred DBA,
pubmed-meshheading:8625510-Molecular Sequence Data,
pubmed-meshheading:8625510-RNA, Messenger
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pubmed:year |
1996
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pubmed:articleTitle |
IL-12 protects mice against pulmonary and disseminated infection caused by Cryptococcus neoformans.
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pubmed:affiliation |
First Department of Internal Medicine, Faculty of Medicine, University of the Ryukyus, Okinawa, Japan.
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pubmed:publicationType |
Journal Article
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