Research Topics
Species | F L FierensSummaryAffiliation: Vrije Universiteit Brussel Country: Belgium Publications
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Publications
Distinct binding properties of the AT(1) receptor antagonist [(3)H]candesartan to intact cells and membrane preparationsFrederik L P Fierens
Department of Molecular and Biochemical Pharmacology, Free University of Brussels VUB, 65 Paardenstraat, B 1640 Sint Genesius Rode, Belgium
Biochem Pharmacol 63:1273-9. 2002..Whereas the binding was almost completely enthalpy-driven on intact cells, there was a mixed contribution of both enthalpy and entropy on membranes...
Insurmountable angiotensin AT1 receptor antagonists: the role of tight antagonist bindingF L Fierens
Department of Molecular and Biochemical Pharmacology, Free University of Brussels VUB, Belgium
Eur J Pharmacol 372:199-206. 1999..Our data indicate that antagonist-receptor complexes are divided into a fast reversible/surmountable population and a tight binding/insurmountable population at the very onset of the incubation with angiotensin II...
Lys(199) mutation of the human angiotensin type 1 receptor differentially affects the binding of surmountable and insurmountable non-peptide antagonistsF L Fierens
Department of Molecular and Biochemical Pharmacology, Free University of Brussels, Rode, B 1640, Belgium
J Renin Angiotensin Aldosterone Syst 1:283-8. 2000..His256 -->Ala substitution had only minor effects. This suggests that Lys199 is important for the tight binding of non-peptide antagonists...
Tight binding of the angiotensin AT(1) receptor antagonistF L Fierensa
Department of Molecular and Biochemical Pharmacology, Institute for Molecular Biology, Free University of Brussels, Paardenstraat 65, B 1640, Sint Genesius Rode, Belgium
Biochem Pharmacol 61:1227-35. 2001..Insurmountable antagonism of candesartan is therefore independent from receptor internalization via clathrin-coated pits...
The effects of candesartan on human AT1 receptor-expressing Chinese hamster ovary cellsG Vauquelin
Department of Molecular and Biochemical Pharmacology, Institute of Molecular Biology, Free University of Brussels VUB, Sint Genesius Rode, Belgium
J Am Soc Nephrol 10:S15-7. 1999..The insurmountable effect of candesartan can therefore be ascribed to its long-lasting inhibition of the AT1 receptor...
Reversible and syntopic interaction between angiotensin receptor antagonists on Chinese hamster ovary cells expressing human angiotensin II type 1 receptorsP M Vanderheyden
Department of Molecular Pharmacology, Free University of Brussels, Sint Genesius Rode, Belgium
Biochem Pharmacol 59:927-35. 2000..In addition, similar kinetic data were obtained from the slowing of the [(3)H]candesartan association rate to antagonist preincubated cells...
Interaction between the partially insurmountable antagonist valsartan and human recombinant angiotensin II type 1 receptorsI Verheijen
Department of Molecular and Biochemical Pharmacology, Free University of Brussels, Belgium
Fundam Clin Pharmacol 14:577-85. 2000..These kinetic data suggest that the insurmountable inhibition by valsartan is related to its relatively slow dissociation from the human AT1 receptors...
A two-state receptor model for the interaction between angiotensin II type 1 receptors and non-peptide antagonistsG Vauquelin
Department of Molecular and Biochemical Pharmacology, Free University of Brussels VUB, Sint Genesius Rode, Belgium
Biochem Pharmacol 61:277-84. 2001..In conclusion, these findings provide further support for the concept that insurmountable and surmountable AT1 antagonists are mutually competitive and that insurmountable antagonist-receptor complexes may adopt different states...
Angiotensin II type 1 receptor antagonists. Why do some of them produce insurmountable inhibition?P M Vanderheyden
Department of Molecular and Biochemical Pharmacology, Free University of Brussels, Sint Genesius Rode, Belgium
Biochem Pharmacol 60:1557-63. 2000..In addition to the relatively slow dissociation of candesartan, reassociation to the receptor, which is measurable in CHO-AT(1) cells, likely contributes to its long-lasting blood pressure lowering effect in vivo...
Distinction between surmountable and insurmountable selective AT1 receptor antagonists by use of CHO-K1 cells expressing human angiotensin II AT1 receptorsP M Vanderheyden
Department of Protein Chemistry, Free University of Brussels VUB, Sint Genesius Rode, Belgium
Br J Pharmacol 126:1057-65. 1999....
Binding characteristics of [(3)H]-irbesartan to human recombinant angiotensin type 1 receptorsP M Vanderheyden
Department of Molecular and Biochemical Pharmacology, Free University of Brussels, Rode, B 1640, Belgium
J Renin Angiotensin Aldosterone Syst 1:159-65. 2000..In contrast, other phenomena such as the plasma half life and tissue-related factors are necessary to explain its sustained in vivo antihypertensive effect...
Inhibition of angiotensin II-induced inositol phosphate production by triacid nonpeptide antagonists in CHO cells expressing human AT1 receptorsP M Vanderheyden
Department of Molecular and Biochemical Pharmacology, Institute of Molecular Biology and Biotechnology, Free University of Brussels, Sint Genesius Rode, Belgium
Pharm Res 17:1482-8. 2000..The aim of the present work is to describe the inhibitory properties of LY301875 and LY303336, two polysubstituted 4-aminoimidazole AT1 receptor antagonists, on CHO cells expressing human recombinant AT1 receptors...
