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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1991-5-28
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pubmed:abstractText |
Ten patients with human T lymphotropic virus type I-associated myelopathy (HAM), 5 asymptomatic HTLV-I carriers and 11 healthy normal volunteers were studied to determine if peripheral blood lymphocytes spontaneously release IL-2 and soluble IL-2 receptors. Peripheral blood lymphocytes obtained from HAM patients proliferated spontaneously when cultured for 5 days in vitro. Proliferating cells were CD3+ lymphocytes and both CD4+ cells and CD8+ cells as shown by morphologic and immunohistochemical observations. These T cell responses were also found in asymptomatic carriers, but the responses were not as marked as those of HAM patients. IL-2 activity in the culture supernatants was much higher in HAM patients than in asymptomatic carriers; IL-2 activity correlated well with the intensity of spontaneous proliferation of lymphocytes. Furthermore, soluble IL-2 receptors in the cell-free supernatants from HAM patients were markedly increased compared to those from asymptomatic carriers. These results indicate that spontaneous proliferation of T cells is intimately related to HTLV-I infection and is probably due to autocrine or paracrine pathways which involve IL-2 and IL-2 receptor system.
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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:issn |
0021-5120
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
29
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
487-92
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:1982452-Adult,
pubmed-meshheading:1982452-Aged,
pubmed-meshheading:1982452-Carrier State,
pubmed-meshheading:1982452-Cells, Cultured,
pubmed-meshheading:1982452-DNA Replication,
pubmed-meshheading:1982452-Deltaretrovirus Infections,
pubmed-meshheading:1982452-Female,
pubmed-meshheading:1982452-Humans,
pubmed-meshheading:1982452-Interleukin-2,
pubmed-meshheading:1982452-Lymphocyte Activation,
pubmed-meshheading:1982452-Male,
pubmed-meshheading:1982452-Middle Aged,
pubmed-meshheading:1982452-Paraparesis, Tropical Spastic,
pubmed-meshheading:1982452-Receptors, Interleukin-2,
pubmed-meshheading:1982452-T-Lymphocyte Subsets,
pubmed-meshheading:1982452-T-Lymphocytes
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pubmed:articleTitle |
Immunological abnormalities in HTLV-I-associated myelopathy: spontaneous release of interleukin-2 and interleukin-2 receptor by peripheral blood lymphocytes.
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pubmed:affiliation |
Department of Hygiene, Kagoshima University Faculty of Medicine, Japan.
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pubmed:publicationType |
Journal Article
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