Linked Life Data

9208874

Source:http://linkedlifedata.com/resource/pubmed/id/9208874

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3 Suppl 9
pubmed:dateCreated
1997-7-15
pubmed:abstractText
Because alpha-interferon (IFN-alpha) has a number of therapeutic applications in the treatment of various human cancers and diseases of viral origin, an understanding of how this family of proteins interacts with cells to induce their pleiotropic biologic activities is essential. Available data suggest that recombinant IFN-alphas from both natural and synthetic genes bind to a common cell surface receptor and induce antiviral activity in a variety of cell lines. IFN-alphas were found to differ significantly in their abilities to bind to cells; this difference varied with the types of IFN-alpha and cell type used. Consensus interferon (IFN-con1), a nonnaturally occurring synthetic IFN, and IFN-alpha2b competed about equally well for receptor binding sites on Daudi and CaKi cells and were followed by IFN-alpha8 in the ability to compete. Results of affinity cross-linking experiments indicated that all three IFN-alphas interacted similarly with the multichain IFN-alpha receptor. IFN-alpha7, however, competed poorly for binding sites on both cell lines. Each of the IFN-alphas tested displayed discrete biologic differences, which also varied with the assay system used. IFN-con1 and IFN-alpha2b displayed similar antiviral activities on CaKi cells using vesicular stomatitis virus; the viral activities of these IFNs were significantly greater than those of IFN-alpha7 or IFN-alpha8. Studies with murine transfectants demonstrated significant differences in the various IFNs to interact with the IFN-alpha receptor-1 chain of the type I IFN receptor. It is yet to be established, however, that these various in vitro distinctions result in differences in clinical benefit or toxicity between the various subtypes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0093-7754
pubmed:author
pubmed:issnType
Print
pubmed:volume
24
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
S9-63-S9-69
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Biologic activities of natural and synthetic type I interferons.
pubmed:affiliation
Department of Pathology, University of Tennessee Health Science Center, Memphis 38163, USA.
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't