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Wágner G, Mocking TAM, Ma X, Slynko I, Da Costa Pereira D, Breeuwer R, Rood NJN, van der Horst C, Vischer HF, de Graaf C, de Esch IJP, Wijtmans M, Leurs R. SAR exploration of the non-imidazole histamine H 3 receptor ligand ZEL-H16 reveals potent inverse agonism. Arch Pharm (Weinheim) 2023; 356:e2200451. [PMID: 36310109 DOI: 10.1002/ardp.202200451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/24/2022] [Accepted: 10/01/2022] [Indexed: 01/03/2023]
Abstract
Histamine H3 receptor (H3 R) agonists without an imidazole moiety remain very scarce. Of these, ZEL-H16 (1) has been reported previously as a high-affinity non-imidazole H3 R (partial) agonist. Our structure-activity relationship analysis using derivatives of 1 identified both basic moieties as key interaction motifs and the distance of these from the central core as a determinant for H3 R affinity. However, in spite of the reported H3 R (partial) agonism, in our hands, 1 acts as an inverse agonist for Gαi signaling in a CRE-luciferase reporter gene assay and using an H3 R conformational sensor. Inverse agonism was also observed for all of the synthesized derivatives of 1. Docking studies and molecular dynamics simulations suggest ionic interactions/hydrogen bonds to H3 R residues D1143.32 and E2065.46 as essential interaction points.
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Affiliation(s)
- Gábor Wágner
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Tamara A M Mocking
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Xiaoyuan Ma
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Inna Slynko
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Daniel Da Costa Pereira
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Robin Breeuwer
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Niek J N Rood
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Cas van der Horst
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Henry F Vischer
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Chris de Graaf
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Iwan J P de Esch
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Maikel Wijtmans
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Rob Leurs
- Division of Medicinal Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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Zheng Y, Wágner G, Hauwert N, Ma X, Vischer HF, Leurs R. New Chemical Biology Tools for the Histamine Receptor Family. Curr Top Behav Neurosci 2022; 59:3-28. [PMID: 35851442 DOI: 10.1007/7854_2022_360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The histamine research community has in the last decade been very active and generated a number of exciting new chemical biology tools for the study of histamine receptors, their ligands, and their pharmacology. In this paper we describe the development of histamine receptor structural biology, the use of receptor conformational biosensors, and the development of new ligands for covalent or fluorescent labeling or for photopharmacological approaches (photocaging and photoswitching). These new tools allow new approaches to study histamine receptors and hopefully will lead to better insights in the molecular aspects of histamine receptors and their ligands.
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Affiliation(s)
- Yang Zheng
- Department of Medicinal Chemistry, Faculty of Science, Amsterdam Institute of Molecular Life Sciences (AIMMS), Amsterdam, The Netherlands
| | - Gábor Wágner
- Department of Medicinal Chemistry, Faculty of Science, Amsterdam Institute of Molecular Life Sciences (AIMMS), Amsterdam, The Netherlands
| | - Niels Hauwert
- Department of Medicinal Chemistry, Faculty of Science, Amsterdam Institute of Molecular Life Sciences (AIMMS), Amsterdam, The Netherlands
| | - Xiaoyuan Ma
- Department of Medicinal Chemistry, Faculty of Science, Amsterdam Institute of Molecular Life Sciences (AIMMS), Amsterdam, The Netherlands
| | - Henry F Vischer
- Department of Medicinal Chemistry, Faculty of Science, Amsterdam Institute of Molecular Life Sciences (AIMMS), Amsterdam, The Netherlands
| | - Rob Leurs
- Department of Medicinal Chemistry, Faculty of Science, Amsterdam Institute of Molecular Life Sciences (AIMMS), Amsterdam, The Netherlands.
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Synthesis and Structure-Activity Relationships of New 2-Phenoxybenzamides with Antiplasmodial Activity. Pharmaceuticals (Basel) 2021; 14:ph14111109. [PMID: 34832891 PMCID: PMC8625693 DOI: 10.3390/ph14111109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/28/2021] [Accepted: 10/29/2021] [Indexed: 11/17/2022] Open
Abstract
The 2-phenoxybenzamide 1 from the Medicines for Malaria Venture Malaria Box Project has shown promising multi-stage activity against different strains of P. falciparum. It was successfully synthesized via a retrosynthetic approach. Subsequently, twenty-one new derivatives were prepared and tested for their in vitro activity against blood stages of the NF54 strain of P. falciparum. Several insights into structure-activity relationships were revealed. The antiplasmodial activity and cytotoxicity of compounds strongly depended on the substitution pattern of the anilino partial structure as well as on the size of substituents. The diaryl ether partial structure had further impacts on the activity. Additionally, several physicochemical and pharmacokinetic parameters were calculated (log P, log D7.4 and ligand efficiency) or determined experimentally (passive permeability and CYP3A4 inhibition). The tert-butyl-4-{4-[2-(4-fluorophenoxy)-3-(trifluoromethyl)benzamido]phenyl}piperazine-1-carboxylate possesses high antiplasmodial activity against P. falciparum NF54 (PfNF54 IC50 = 0.2690 µM) and very low cytotoxicity (L-6 cells IC50 = 124.0 µM) resulting in an excellent selectivity index of 460. Compared to the lead structure 1 the antiplasmodial activity was improved as well as the physicochemical and some pharmacokinetic parameters.
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Schihada H, Ma X, Zabel U, Vischer HF, Schulte G, Leurs R, Pockes S, Lohse MJ. Development of a Conformational Histamine H 3 Receptor Biosensor for the Synchronous Screening of Agonists and Inverse Agonists. ACS Sens 2020; 5:1734-1742. [PMID: 32397705 PMCID: PMC7325232 DOI: 10.1021/acssensors.0c00397] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
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The
histamine H3 receptor (H3R) represents
a highly attractive drug target for the treatment of various central
nervous system disorders, but the discovery of novel H3R targeting compounds relies on the assessment of highly amplified
intracellular signaling events that do not only reflect H3R modulation and carry the risk of high false-positive and -negative
screening rates. To address these limitations, we designed an intramolecular
H3R biosensor based on the principle of bioluminescence
resonance energy transfer (BRET) that reports the receptor’s
real-time conformational dynamics and provides an advanced tool to
screen for both H3R agonists and inverse agonists in a
live cell screening-compatible assay format. This conformational G-protein-coupled
receptor (GPCR) sensor allowed us to characterize the pharmacological
properties of known and new H3 receptor ligands with unprecedented
accuracy. Interestingly, we found that one newly developed H3 receptor ligand possesses even stronger inverse agonistic activity
than reference H3R inverse agonists including the current
gold standard pitolisant. Taken together, we describe here the design
and validation of the first screening-compatible H3R conformational
biosensor that will aid in the discovery of novel H3R ligands
and can be employed to gain deeper insights into the (in-)activation
mechanism of this highly attractive drug target.
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Affiliation(s)
- Hannes Schihada
- Section of Receptor Biology & Signaling, Dept. Physiology & Pharmacology, Karolinska Institutet, Stockholm 171 77, Sweden
- Institute of Pharmacology and Toxicology and Rudolf Virchow Center, University of Würzburg, Würzburg 97070, Germany
| | - Xiaoyuan Ma
- Amsterdam Institute for Molecules, Medicines and Systems, Division of Medicinal Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam 1081 HV, The Netherlands
| | - Ulrike Zabel
- Institute of Pharmacology and Toxicology and Rudolf Virchow Center, University of Würzburg, Würzburg 97070, Germany
| | - Henry F. Vischer
- Amsterdam Institute for Molecules, Medicines and Systems, Division of Medicinal Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam 1081 HV, The Netherlands
| | - Gunnar Schulte
- Section of Receptor Biology & Signaling, Dept. Physiology & Pharmacology, Karolinska Institutet, Stockholm 171 77, Sweden
| | - Rob Leurs
- Amsterdam Institute for Molecules, Medicines and Systems, Division of Medicinal Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam 1081 HV, The Netherlands
| | - Steffen Pockes
- Institute of Pharmacy, Faculty of Chemistry and Pharmacy, University of Regensburg, Regensburg 93053, Germany
| | - Martin J. Lohse
- Institute of Pharmacology and Toxicology and Rudolf Virchow Center, University of Würzburg, Würzburg 97070, Germany
- ISAR Bioscience, Planegg 82152, Germany
- Max Delbrück Center for Molecular Medicine, Berlin 13125, Germany
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