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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1997-5-29
pubmed:abstractText
Soluble interleukin-2 receptor (sIL-2R) alpha chain serum levels as determined by enzyme-linked immunosorbant assay (ELISA) are commonly used to monitor various inflammatory and neoplastic disorders associated with lymphocytic proliferation and activation. The in vivo structure of this soluble receptor species, however, is not characterized. We investigated sera with elevated sIL-2R serum levels of patients with histologically proven cutaneous T cell lymphoma (CTCL) and high-dose IL-2-treated melanoma patients and healthy donors. Purified recombinant IL-2R alpha and beta chain molecules, produced by transfection of NIH/3T3 fibroblasts and CHO cells, served as positive controls for purification and detection procedures. For selective enrichment of IL-2R molecules from supernatants and sera, affinity columns were prepared by coupling recombinant IL-2 or monoclonal antibodies against the alpha and the beta chain of the IL-2R complex to cyanogen bromide-activated Sepharose. Western blotting with affinity-purified fractions under reducing and nonreducing conditions revealed proteins that showed immunoreactivity for IL-2R alpha, beta, and gamma chain using several detection antibodies against these molecules. We conclude that the composition of sIL-2R in vivo is more complex than that of recombinant sIL-2R and can include all three IL-2R chains.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1079-9907
pubmed:author
pubmed:issnType
Print
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
315-20
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Circulating interleukin-2 receptors are a group of multimeric proteins with immunoreactivity for interleukin-2 receptor alpha, beta, and gamma chains.
pubmed:affiliation
Department of Dermatology, University of Zurich Medical School, Gloriastrasse 31, CH 8091 Zurich, Switzerland.
pubmed:publicationType
Journal Article