Angewandte Chemie - International Edition p. 1416 - 1421 (2017)
Update date:2022-08-30
Topics:
Moog, Kai E.
Barz, Matthias
Bartneck, Matthias
Beceren-Braun, Figen
Mohr, Nicole
Wu, Zhuojun
Braun, Lydia
Dernedde, Jens
Liehn, Elisa A.
Tacke, Frank
Lammers, Twan
Kunz, Horst
Zentel, Rudolf
Novel polymeric cell adhesion inhibitors were developed in which the selectin tetrasaccharide sialyl-LewisX(SLeX) is multivalently presented on a biocompatible poly(2-hydroxypropyl)methacrylamide (PHPMA) backbone either alone (P1) or in combination with O-sulfated tyramine side chains (P2). For comparison, corresponding polymeric glycomimetics were prepared in which the crucial “single carbohydrate” substructures fucose, galactose, and sialic acid side chains were randomly linked to the PHPMA backbone (P3 or P4 (O-sulfated tyramine)). All polymers have an identical degree of polymerization, as they are derived from the same precursor polymer. Binding assays to selectins, to activated endothelial cells, and to macrophages show that polyHPMA with SLeXis an excellent binder to E-, L-, and P-selectins. However, mimetic P4 can also achieve close to comparable binding affinities in in vitro measurements and surprisingly, it also significantly inhibits the migration of macrophages; this provides new perspectives for the therapy of severe inflammatory diseases.
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Doi:10.1007/BF03185251
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