Zinc complexation improves angiotensin II receptor type 1 blockade and in vivo antihypertensive activity of telmisartan.

Abstract:

:Background: Angiotensin II receptor blockers were designed as therapeutic agents to block the binding site of the angiotensin II receptor type 1 (AT1R). Methodology: The structure of telmisartan was modified by coordination to the biometal Zn(II), resulting in the compound ZnTelm. Its antihypertensive activity and cellular mechanisms in comparison to telmisartan were studied. Results: Compared with telmisartan, ZnTelm displayed stronger binding to AT1R (binding studies on AT1R-transfected human embryonic kidney cells) and a greater reduction of reactive oxygen species and cytosolic calcium concentration induced by angiotensin II. The antihypertensive activity of the complex (assessed in an N(G)-Nitro-L-arginine methyl ester-induced hypertension model) was significantly higher. ZnTelm also reduced hypertrophy in aortic artery rings and tubular collagen deposition. Conclusion: ZnTelm enhances the AT1R blockade and consequently its antihypertensive effect.

journal_name

Future Med Chem

authors

Martínez VR,Aguirre MV,Todaro JS,Lima AM,Stergiopulos N,Ferrer EG,Williams PA

doi

10.4155/fmc-2020-0093

subject

Has Abstract

pub_date

2021-01-01 00:00:00

pages

13-23

issue

1

eissn

1756-8919

issn

1756-8927

journal_volume

13

pub_type

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