PreprintCited by 4Receptor Mechanisms and SignalingPhosphodiesterase function and regulationCardiovascular, Neuropeptides, and Oxidative Stress Research

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Novel enhancers of guanylyl cyclase-A activity via allosteric modulation

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Preprint — published as 10.1111/bph.16203

Abstract

Natriuretic peptide receptor (NPR)-A (also known as NPR-A, NPR1 or guanylyl cyclase-A, GC-A) is an attractive but challenging target to activate with small molecules. GC-A is activated by endogenous atrial natriuretic peptide (ANP) and B-type natriuretic peptide (BNP), and this activation leads to the production of 3’,5’-cyclic guanosine monophosphate (cGMP). This system plays an important role in the regulation of cardiovascular and renal homeostasis. However, utilization of this receptor as a drug target has so far been limited to peptides, even though small molecule modulators allow oral administration and longer half-life. We have identified small molecular allosteric enhancers of GC-A, which strengthened ANP or BNP activation in various in vitro and ex vivo systems. These compounds do not mediate their actions through previously described allosteric binding sites or via known mechanisms of action. In addition, their selectivity and activity are dependent on only one amino acid in GC-A. Our findings show that there is a novel allosteric binding site on GC-A, which can be targeted by small molecules that increase the signaling effects of ANP and BNP.

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Metadata

Authors
Andresen, H., Pérez-Ternero, C., Robinson, J., Dickey, D. M., Hobbs, A. J., Potter, L. R., Levy, F. O., Cataliotti, A., & Moltzau, L. R.
Affiliations
  • Oslo University Hospital (NO)
  • University of Minnesota (US)
  • Queen Mary University of London (GB)
Corresponding author
Levy, Finn Olav
Venue
British Journal of Pharmacology
Publisher
openRxiv
Published
2022-01-01
Volume
180
Issue
24
Pages
3254-3270
ISSN
0007-1188 (ISSN-L)
OpenAlex
W4385406485
Cited by
4
References
1
Citations by year
2026: 2 · 2025: 1 · 2024: 1
FWCI
0.35
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • British Journal of Pharmacology (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion, cc-by)
  • NORA - Norwegian Open Research Archives (submittedVersion, cc-by)
  • Greater South Information System
Funders
  • Wellcome Trust (205167)
  • British Heart Foundation (RG/16/7/32357)
  • Universitetet i Oslo
  • Norges Forskningsråd (285197, 205167, 303490)
  • Anders Jahres Fond til Vitenskapens Fremme
  • Novo Nordisk Fonden (NNF22OC0080919)
  • Nasjonalforeningen for Folkehelsen (460310)
  • Helse Sør-Øst RHF (2023045, 2019051)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Phosphodiesterase function and regulation
  • Health Sciences › Medicine › Surgery › Cardiovascular, Neuropeptides, and Oxidative Stress Research
Keywords
guanylyl cyclase-A, allosteric enhancers, small molecule activators, atrial natriuretic peptide, brain natriuretic peptide, cyclic GMP, vasorelaxation, aorta, allosteric site, cardiovascular disease treatment
MeSH terms
Animals, Cyclic GMP, Guanylate Cyclase, Atrial Natriuretic Factor, Rats, Wistar, Receptors, Atrial Natriuretic Factor, Natriuretic Peptide, Brain, Rats

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