Discovery of a Tritiated Radioligand with High Affinity and Selectivity for the Histamine H3 Receptor

D Mönnich, M Nagl, L Forster, N Rosier… - ACS Medicinal …, 2023 - ACS Publications
Radioligands used previously for histamine H3 receptor (H3R) are accompanied by a
number of disadvantages. In this study, we report the synthesis of the new H3R radioligand …

Discovery of a G Protein-Biased Radioligand for the Histamine H2 Receptor with Reversible Binding Properties

K Tropmann, C Höring, N Plank… - Journal of Medicinal …, 2020 - ACS Publications
Currently employed histamine H2 receptor (H2R) radioligands possess several drawbacks,
for example, high non-specificity, insurmountable binding, or short half-life. We report the …

Histamine H2 Receptor Radioligands: Triumphs and Challenges

S Pockes, K Tropmann - Future Medicinal Chemistry, 2021 - Taylor & Francis
Since the discovery of the histamine H2 receptor (H2R), radioligands were among the most
powerful tools to investigate its role and function. Initially, radiolabeling was used to …

[3H]UR-DEBa176: A 2,4-Diaminopyrimidine-Type Radioligand Enabling Binding Studies at the Human, Mouse, and Rat Histamine H4 Receptors

E Bartole, T Littmann, M Tanaka, T Ozawa… - Journal of Medicinal …, 2019 - ACS Publications
Differences in sequence homology between human (h), mouse (m), and rat (r) histamine H4
receptors (H4R) cause discrepancies regarding affinities, potencies, and/or efficacies of …

Tritium‐Labeled N1‐[3‐(1H‐imidazol‐4‐yl)propyl]‐N2‐propionylguanidine ([3H]UR‐PI294), a High‐Affinity Histamine H3 and H4 Receptor Radioligand

P Igel, D Schnell, G Bernhardt, R Seifert… - ChemMedChem …, 2009 - Wiley Online Library
Histamine mediates its various functions through four histamine receptor subtypes. The H3
subtype is mainly found in the central nervous system, where it modulates the release of …

Synthesis and Pharmacological Characterization of Subtype-Selective Ligands, Including Radio-and Fluorescence Labeled Ligands, for the Histamine H₂ Receptor

S Biselli - 2020 - epub.uni-regensburg.de
The H₂R is one of four receptor subtypes which mediate the action of the biogenic amine
histamine. However, the (patho-) physical role of the H₂R, especially in the brain, is still far …

Use of an inverse agonist radioligand [3H] A-317920 reveals distinct pharmacological profiles of the rat histamine H3 receptor

BB Yao, DG Witte, TR Miller, TL Carr, CH Kang… - …, 2006 - Elsevier
Selective radioligands for histamine H3 receptors have been used to characterize H3
receptor pharmacology by radioligand binding assays and to determine H3 receptor …

Synthesis of radioligands for the histamine H3 receptor

AD Windhorst, R Leurs, WMPB Menge… - Pharmacochemistry …, 1998 - Elsevier
Publisher Summary This chapter discusses the synthesis of radioligands for the histamine H
3 receptor. Radiolabelled receptor ligands are of great importance for studying receptor …

[HTML][HTML] Detection of multiple H3 receptor affinity states utilizing [3H] A-349821, a novel, selective, non-imidazole histamine H3 receptor inverse agonist radioligand

DG Witte, BB Yao, TR Miller, TL Carr… - British journal of …, 2006 - ncbi.nlm.nih.gov
A-349821 is a selective histamine H 3 receptor antagonist/inverse agonist. Herein, binding
of the novel non-imidazole H 3 receptor radioligand [3 H] A-349821 to membranes …

Development of a selective and potent radioactive ligand for histamine H3 receptors: A compound potentially useful for receptor occupancy studies

Y Mitobe, S Ito, T Mizutani, T Nagase, N Sato… - Bioorganic & medicinal …, 2009 - Elsevier
Radioligands are powerful tools for examining the pharmacological profiles of chemical
leads and thus facilitate drug discovery. In this study, we identified and characterized 3-([1 …