Developing chemokine mutants with improved proteoglycan affinity and knocked-out GPCR activity as anti-inflammatory recombinant drugs.

Abstract:

:The interaction of chemokines and GAGs (glycosaminoglycans) on endothelial surfaces is a crucial step for establishing a chemotactic gradient which leads to the functional presentation of chemokines to their GPCRs (G-protein-coupled receptors) and thus to activation of approaching leucocytes. Based on molecular modelling, biophysical investigations, cell-based and in vivo experiments, we have developed a novel concept for therapeutically interfering with chemokine-GAG interactions, namely dominant-negative chemokine mutants with improved GAG binding affinity and knocked-out GPCR activity. These recombinant proteins displace their wild-type chemokine counterparts from the natural proteoglycan co-receptors without being able to activate leucocytes via GPCRs. Our mutant chemokines therefore represent the first protein-based GAG antagonists with high therapeutic potential in inflammatory diseases.

journal_name

Biochem Soc Trans

authors

Potzinger H,Geretti E,Brandner B,Wabitsch V,Piccinini AM,Rek A,Kungl AJ

doi

10.1042/BST0340435

subject

Has Abstract

pub_date

2006-06-01 00:00:00

pages

435-7

issue

Pt 3

eissn

0300-5127

issn

1470-8752

pii

BST0340435

journal_volume

34

pub_type

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