Expression of an efficient small molecular weight tumour necrosis factor/lymphotoxin antagonist.

TNF-alpha and lymphotoxin are proinflammatory cytokines that are non-homologous in sequence, have similar homotrimeric structure and they exert their biological activity by aggregating two types of shared cell surface receptors. The natural inhibitors of TNF and lymphotoxin are the shed extracellula...

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প্রধান লেখক: Neve, R, Kissonerghis, M, Clark, J, Feldmann, M, Chernajovsky, Y
বিন্যাস: Journal article
ভাষা:English
প্রকাশিত: 1996
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author Neve, R
Kissonerghis, M
Clark, J
Feldmann, M
Chernajovsky, Y
author_facet Neve, R
Kissonerghis, M
Clark, J
Feldmann, M
Chernajovsky, Y
author_sort Neve, R
collection OXFORD
description TNF-alpha and lymphotoxin are proinflammatory cytokines that are non-homologous in sequence, have similar homotrimeric structure and they exert their biological activity by aggregating two types of shared cell surface receptors. The natural inhibitors of TNF and lymphotoxin are the shed extracellular domains of the p55 and p75 TNF receptors. However recombinant inhibitors composed of the extracellular domains of p75 or p55 receptors dimerized on IgG backbone have been shown to be much more effective. We have produced a dimeric form of the human p75 TNF receptor extracellular domain based on the structure of the native soluble shed receptor. The dimer was engineered by genetically linking the monomeric forms with a polyglycine-serine linker. Biochemical characterization showed that this dimeric TNF receptor elutes from a TNF affinity column at a lower pH than the monomeric form. Biological assay revealed this novel antagonist to be as efficient as a dimer based on an immunoglobulin backbone. However this new dimer is smaller, stable, and could have greater penetration into tissues.
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spelling oxford-uuid:03daa3ef-b59f-4f8f-818f-955c9737fb662022-03-26T08:48:34ZExpression of an efficient small molecular weight tumour necrosis factor/lymphotoxin antagonist.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:03daa3ef-b59f-4f8f-818f-955c9737fb66EnglishSymplectic Elements at Oxford1996Neve, RKissonerghis, MClark, JFeldmann, MChernajovsky, YTNF-alpha and lymphotoxin are proinflammatory cytokines that are non-homologous in sequence, have similar homotrimeric structure and they exert their biological activity by aggregating two types of shared cell surface receptors. The natural inhibitors of TNF and lymphotoxin are the shed extracellular domains of the p55 and p75 TNF receptors. However recombinant inhibitors composed of the extracellular domains of p75 or p55 receptors dimerized on IgG backbone have been shown to be much more effective. We have produced a dimeric form of the human p75 TNF receptor extracellular domain based on the structure of the native soluble shed receptor. The dimer was engineered by genetically linking the monomeric forms with a polyglycine-serine linker. Biochemical characterization showed that this dimeric TNF receptor elutes from a TNF affinity column at a lower pH than the monomeric form. Biological assay revealed this novel antagonist to be as efficient as a dimer based on an immunoglobulin backbone. However this new dimer is smaller, stable, and could have greater penetration into tissues.
spellingShingle Neve, R
Kissonerghis, M
Clark, J
Feldmann, M
Chernajovsky, Y
Expression of an efficient small molecular weight tumour necrosis factor/lymphotoxin antagonist.
title Expression of an efficient small molecular weight tumour necrosis factor/lymphotoxin antagonist.
title_full Expression of an efficient small molecular weight tumour necrosis factor/lymphotoxin antagonist.
title_fullStr Expression of an efficient small molecular weight tumour necrosis factor/lymphotoxin antagonist.
title_full_unstemmed Expression of an efficient small molecular weight tumour necrosis factor/lymphotoxin antagonist.
title_short Expression of an efficient small molecular weight tumour necrosis factor/lymphotoxin antagonist.
title_sort expression of an efficient small molecular weight tumour necrosis factor lymphotoxin antagonist
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AT kissonerghism expressionofanefficientsmallmolecularweighttumournecrosisfactorlymphotoxinantagonist
AT clarkj expressionofanefficientsmallmolecularweighttumournecrosisfactorlymphotoxinantagonist
AT feldmannm expressionofanefficientsmallmolecularweighttumournecrosisfactorlymphotoxinantagonist
AT chernajovskyy expressionofanefficientsmallmolecularweighttumournecrosisfactorlymphotoxinantagonist