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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1995-9-14
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pubmed:abstractText |
X-linked severe combined immunodeficiency (XSCID) is characterized by absent or profoundly reduced numbers of T cells and normal numbers of B cells in the circulation. Affected patients have mutations of the interleukin-2 (IL-2) receptor gamma chain gene. Using Epstein-Barr virus-transformed B-lymphoblastoid cell lines (B-LCLs) established from two unrelated XSCID patients, we could show that neither expressed the IL-2 receptor gamma chain on the cell surface. A novel cytokine IL-15, which has biologic activities similar to those of IL-2, could bind to the XSCID B-LCLs in the absence of the gamma chain, although both the beta and gamma chains of the human IL-2 receptor were previously shown to be required for IL-15 binding by transfected COS cells. Furthermore, a significant reduction and delay of IL-15 internalization by B lymphoblasts from XSCID patients was observed when compared with that of normal control B-LCLs. These results show the existence of a novel IL-15-specific receptor component that contributes to IL-15 binding but is insufficient for IL-15 internalization in the absence of the IL-2 receptor gamma chain.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0006-4971
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
|
pubmed:volume |
86
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
N
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pubmed:pagination |
1428-36
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:7632950-B-Lymphocytes,
pubmed-meshheading:7632950-Base Sequence,
pubmed-meshheading:7632950-Cell Line,
pubmed-meshheading:7632950-DNA Primers,
pubmed-meshheading:7632950-Endocytosis,
pubmed-meshheading:7632950-Female,
pubmed-meshheading:7632950-Humans,
pubmed-meshheading:7632950-Interleukin-15,
pubmed-meshheading:7632950-Interleukins,
pubmed-meshheading:7632950-Male,
pubmed-meshheading:7632950-Molecular Sequence Data,
pubmed-meshheading:7632950-Mutation,
pubmed-meshheading:7632950-Pedigree,
pubmed-meshheading:7632950-Receptors, Interleukin-2,
pubmed-meshheading:7632950-Severe Combined Immunodeficiency
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pubmed:year |
1995
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pubmed:articleTitle |
Characterization of B-cell lines established from two X-linked severe combined immunodeficiency patients: interleukin-15 binds to the B cells but is not internalized efficiently.
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pubmed:affiliation |
Department of Molecular Biology, Immunex Research and Development Corp., Seattle, WA 98101, USA.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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