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Goncalves-Garcia M, Davies S, Savage DD, Hamilton DA. The histamine H 3 receptor inverse agonist SAR-152954 reverses deficits in long-term potentiation associated with moderate prenatal alcohol exposure. Alcohol 2024; 118:45-55. [PMID: 38705312 DOI: 10.1016/j.alcohol.2024.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 03/28/2024] [Accepted: 04/15/2024] [Indexed: 05/07/2024]
Abstract
Prenatal alcohol exposure can have persistent effects on learning, memory, and synaptic plasticity. Previous work from our group demonstrated deficits in long-term potentiation (LTP) of excitatory synapses on dentate gyrus granule cells in adult offspring of rat dams that consumed moderate levels of alcohol during pregnancy. At present, there are no pharmacotherapeutic agents approved for these deficits. Prior work established that systemic administration of the histaminergic H3R inverse agonist ABT-239 reversed deficits in LTP observed following moderate PAE. The present study examines the effect of a second H3R inverse agonist, SAR-152954, on LTP deficits following moderate PAE. We demonstrate that systemic administration of 1 mg/kg of SAR-152954 reverses deficits in potentiation of field excitatory post-synaptic potentials (fEPSPs) in adult male rats exposed to moderate PAE. Time-frequency analyses of evoked responses revealed PAE-related reductions in power during the fEPSP, and increased power during later components of evoked responses which are associated with feedback circuitry that are typically not assessed with traditional amplitude-based measures. Both effects were reversed by SAR-152954. These findings provide further evidence that H3R inverse agonism is a potential therapeutic strategy to address deficits in synaptic plasticity associated with PAE.
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Affiliation(s)
| | - Suzy Davies
- Neurosciences, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Daniel D Savage
- Departments of Psychology, University of New Mexico, Albuquerque, NM, 87131, USA; Neurosciences, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Derek A Hamilton
- Departments of Psychology, University of New Mexico, Albuquerque, NM, 87131, USA; Neurosciences, University of New Mexico, Albuquerque, NM, 87131, USA.
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2
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Ledneczki I, Tapolcsányi P, Gábor E, Éles J, Barabás J, Béni Z, Varga B, Balázs O, Román V, Fodor L, Szikra J, Vastag M, Lévay G, Schmidt É, Lendvai B, Greiner I, Kiss B, Némethy Z, Mahó S. Discovery of Novel Steroid-Based Histamine H 3 Receptor Antagonists/Inverse Agonists. J Med Chem 2024; 67:3643-3667. [PMID: 38393759 DOI: 10.1021/acs.jmedchem.3c02117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
Steroid-based histamine H3 receptor antagonists (d-homoazasteroids) were designed by combining distinct structural elements of HTS hit molecules. They were characterized, and several of them displayed remarkably high affinity for H3 receptors with antagonist/inverse agonist features. Especially, the 17a-aza-d-homolactam chemotype demonstrated excellent H3R activity together with significant in vivo H3 antagonism. Optimization of the chemotype was initiated with special emphasis on the elimination of the hERG and muscarinic affinity. Additionally, ligand-based SAR considerations and molecular docking studies were performed to predict binding modes of the molecules. The most promising compounds (XXI, XXVIII, and XX) showed practically no muscarinic and hERG affinity. They showed antagonist/inverse agonist property in the in vitro functional tests that was apparent in the rat in vivo dipsogenia test. They were considerably stable in human and rat liver microsomes and provided significant in vivo potency in the place recognition and novel object recognition cognitive paradigms.
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Affiliation(s)
| | - Pál Tapolcsányi
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - Eszter Gábor
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - János Éles
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - Júlia Barabás
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - Zoltán Béni
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - Balázs Varga
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - Ottilia Balázs
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - Viktor Román
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - László Fodor
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - Judit Szikra
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - Mónika Vastag
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - György Lévay
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - Éva Schmidt
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - Balázs Lendvai
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - István Greiner
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - Béla Kiss
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - Zsolt Némethy
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
| | - Sándor Mahó
- Gedeon Richter Plc., 19-21 Gyömrői út, Budapest H-1103, Hungary
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Stefaniak-Napieralska M, Walczyński K, Iwan M, Korga-Plewko A, Szałaj N, Więckowska A, Staszewski M. Preliminary studies of 1,5-benzoxazepine derivatives as potential histamine H 3 receptor antagonists. Future Med Chem 2024; 16:197-204. [PMID: 38189171 DOI: 10.4155/fmc-2023-0277] [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] [Received: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/09/2024] Open
Abstract
Aims: Our research aimed to evaluate how the rigidification of the characteristic 3-aminopropyloxy linker by incorporating it into 1,5-benzoxazepines affects the potency of histamine H3 receptor (H3R) antagonists/inverse agonists. This research constitutes a starting point for the full characterization of the pharmacological properties of this group of compounds. Materials & methods: Several 1,5-benzoxazepine derivatives were synthesized and pharmacologically tested as potential H3R antagonist/inverse agonists. In a addition, the effect of the derivatives on acetylcholinesterase and butyrylcholinesterase inhibition and cytotoxicity were tested. Results: The studies indicated 1,5-benzoxazepine containing three carbon side chains as a compound for further modification. Conclusion: Further optimization of the lead structure is necessary, which will favorably affect biological targets.
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Affiliation(s)
| | - Krzysztof Walczyński
- Department of Synthesis & Technology of Drugs, Medical University of Lodz, Muszyńskiego 1, 90-151 Łódź, Poland
| | - Magdalena Iwan
- Department of Toxicology, Medical University of Lublin, Chodźki 8, 20-093 Lublin, Poland
| | - Agnieszka Korga-Plewko
- Independent Medical Biology Unit, Medical University of Lublin, Jaczewskiego 8b, 20-090 Lublin, Poland
| | - Natalia Szałaj
- Department of Physicochemical Drug Analysis, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Anna Więckowska
- Department of Physicochemical Drug Analysis, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Marek Staszewski
- Department of Synthesis & Technology of Drugs, Medical University of Lodz, Muszyńskiego 1, 90-151 Łódź, Poland
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Davies S, Lujan KS, Rappaport EJ, Valenzuela CF, Savage DD. Effect of moderate prenatal ethanol exposure on the differential expression of two histamine H3 receptor isoforms in different brain regions of adult rat offspring. Front Neurosci 2023; 17:1192096. [PMID: 37449267 PMCID: PMC10338121 DOI: 10.3389/fnins.2023.1192096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 05/30/2023] [Indexed: 07/18/2023] Open
Abstract
We have reported that prenatal alcohol exposure (PAE) elevates histamine H3 receptor (H3R) agonist-mediated inhibition of glutamatergic neurotransmission in the dentate gyrus. Here, we hypothesized that PAE alters the expression of two prominent H3R isoforms namely, the rH3A and rH3C isoforms, which have differing intrinsic activities for H3R agonists, in a manner that may contribute to heightened H3R function in PAE rats. In contrast to our predictions, we found different effects of sex and PAE in various brain regions with significant interactions between sex and PAE in dentate gyrus and entorhinal cortex for both isoforms. Subsequently, to confirm the PAE-and sex-induced differences on H3R isoform mRNA expression, we developed a polyclonal antibody selective for the rH3A inform. Western blots of rH3A mRNA-transfected HEK-293 cells identified a ~ 48 kDa band of binding consistent with the molecular weight of rH3A, thus confirming antibody sensitivity for rH3A protein. In parallel, we also established a pan-H3R knockout mice line to confirm antibody specificity in rodent brain membranes. Both qRT-PCR and H3R agonist-stimulated [35S]-GTPγS binding confirmed the absence of mH3A mRNA and H3 receptor-effector coupling in H3R knockout (KO) mice. Subsequent western blotting studies in both rat and mouse brain membranes were unable to detect rH3A antibody binding at ~48 kDa. Rather, the H3RA antibody bound to a ~ 55 kDa band in both rat and mouse membranes, including H3R KO mice, suggesting H3RA binding was not specific for H3Rs in rodent membranes. Subsequent LC/MS analysis of the ~55 kDa band in frontal cortical membranes identified the highly abundant beta subunit of ATPase in both WT and KO mice. Finally, LC/MS analysis of the ~48 kDa band from rH3A mRNA-transfected HEK-293 cell membranes was able to detect rH3A protein, but its presence was below the limits of quantitative reliability. We conclude that PAE alters rH3A and rH3C mRNA expression in some of the same brain regions where we have previously reported PAE-induced alterations in H3R-effector coupling. However, interpreting the functional consequences of altered H3R isoform expression was limited given the technical challenges of measuring the relatively low abundance of rH3A protein in native membrane preparations.
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Li Z, Xiao X, Xue Y, Zhou H, Huang C, Zhu M, Zhuang T, Chen Y, Huang L. Discovery of a novel class of benzoxazole derivatives as histamine H 3 receptor ligands for the treatment of neuropathic pain. Bioorg Chem 2022; 127:106039. [PMID: 35872397 DOI: 10.1016/j.bioorg.2022.106039] [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: 04/11/2022] [Revised: 07/08/2022] [Accepted: 07/14/2022] [Indexed: 11/25/2022]
Abstract
To discover effective analgesics, we summarize the synthesis, optimization, and pharmacological anti-nociceptive effects of a novel series of benzoxazole derivatives targeting H3 receptor (H3R). The new benzoxazoles were assayed in vitro for histamine H3R and H1R binding affinity. The best compound 8d (2-methyl-6-(3-(4-methylpiperazin-1-yl)propoxy)benzo[d]oxazole) exhibited high affinity for H3R (Ki = 19.7 nM), high selectivity for ten other off-target receptors, and negligible effects on human ether-a-go-go-related gene (hERG, cardiac ion channel). In rodent animals, compound 8d dose-dependently reversed formalin-evoked pain (Phase I, ED50 = 6.0 mg/kg; Phase II, ED50 = 7.8 mg/kg) and CCI-induced neuropathic pain (chronic constriction injury, ED50 = 15.6 mg/kg). Furthermore, compound 8d showed an excellent safety profile in acute toxicity test (LD50 > 2000 mg/kg) with a therapeutic index (TI = LD50/ED50) > 250 and showed a desirable drug-like pharmacokinetic profile. Above characteristics indicate that compound 8d represents a promising candidate analgesic for the treatment of neuropathic pain.
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Affiliation(s)
- Ziying Li
- Jiangsu Institute of Marine Resources Development, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Xinyi Xiao
- Jiangsu Institute of Marine Resources Development, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Yulin Xue
- Jiangsu Institute of Marine Resources Development, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Huiling Zhou
- Jiangsu Institute of Marine Resources Development, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Chaonan Huang
- Jiangsu Institute of Marine Resources Development, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Mo Zhu
- Grand Life Sciences (Wuhan) Co., Ltd., Wuhan 430040, China
| | - Tao Zhuang
- Jiangsu Institute of Marine Resources Development, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.
| | - Yin Chen
- Jiangsu Institute of Marine Resources Development, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.
| | - Ling Huang
- Jiangsu Institute of Marine Resources Development, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China; Grand Life Sciences (Wuhan) Co., Ltd., Wuhan 430040, China.
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6
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Ghazanfari N, van Waarde A, Doorduin J, Sijbesma JWA, Kominia M, Koelewijn M, Attia K, Vállez-García D, Willemsen ATM, Heeres A, Dierckx RAJO, Visser TJ, de Vries EFJ, Elsinga PH. Binding of the Dual-Action Anti-Parkinsonian Drug AG-0029 to Dopamine D 2 and Histamine H 3 Receptors: A PET Study in Healthy Rats. Mol Pharm 2022; 19:2287-2298. [PMID: 35732005 PMCID: PMC9257755 DOI: 10.1021/acs.molpharmaceut.2c00121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 06/02/2022] [Accepted: 06/02/2022] [Indexed: 11/30/2022]
Abstract
Introduction: Parkinson's disease (PD) is a neurodegenerative disorder characterized by motor dysfunction and a diverse range of nonmotor symptoms. Functional relationships between the dopaminergic and histaminergic systems suggest that dual-action pharmaceuticals like AG-0029 (D2/D3 agonist/H3 antagonist) could ameliorate both the motor and cognitive symptoms of PD. The current study aimed to demonstrate the interaction of AG-0029 with its intended targets in the mammalian brain using positron emission tomography (PET). Methods: Healthy male Wistar rats were scanned with a small-animal PET camera, using either the dopamine D2/D3 receptor ligand [11C]raclopride or the histamine H3 receptor ligand [11C]GSK-189254, before and after treatment with an intravenous, acute, single dose of AG-0029. Dynamic [11C]raclopride PET data (60 min duration) were analyzed using the simplified reference tissue model 2 (SRTM2) with cerebellum as reference tissue and the nondisplaceable binding potential as the outcome parameter. Data from dynamic [11C]GSK-189254 scans (60 min duration) with arterial blood sampling were analyzed using Logan graphical analysis with the volume of distribution (VT) as the outcome parameter. Receptor occupancy was estimated using a Lassen plot. Results: Dopamine D2/3 receptor occupancies in the striatum were 22.6 ± 18.0 and 84.0 ± 3.5% (mean ± SD) after administration of 0.1 and 1 mg/kg AG-0029, respectively. In several brain regions, the VT values of [11C]GSK-189254 were significantly reduced after pretreatment of rats with 1 or 10 mg/kg AG-0029. The H3 receptor occupancies were 11.9 ± 8.5 and 40.3 ± 11.3% for the 1 and 10 mg/kg doses of AG-0029, respectively. Conclusions: Target engagement of AG-0029 as an agonist at dopamine D2/D3 receptors and an antagonist at histamine H3 receptors could be demonstrated in the rat brain with [11C]raclopride and [11C]GSK-189254 PET, respectively. The measured occupancy values reflect the previously reported high (subnanomolar) affinity of AG-0029 to D2/D3 and moderate (submicromolar) affinity to H3 receptors.
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Affiliation(s)
- Nafiseh Ghazanfari
- Department
of Nuclear Medicine and Molecular Imaging, University Medical Center
Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Aren van Waarde
- Department
of Nuclear Medicine and Molecular Imaging, University Medical Center
Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Janine Doorduin
- Department
of Nuclear Medicine and Molecular Imaging, University Medical Center
Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Jürgen W. A. Sijbesma
- Department
of Nuclear Medicine and Molecular Imaging, University Medical Center
Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Maria Kominia
- Department
of Nuclear Medicine and Molecular Imaging, University Medical Center
Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | | | - Khaled Attia
- Department
of Nuclear Medicine and Molecular Imaging, University Medical Center
Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - David Vállez-García
- Department
of Nuclear Medicine and Molecular Imaging, University Medical Center
Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Antoon T. M. Willemsen
- Department
of Nuclear Medicine and Molecular Imaging, University Medical Center
Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - André Heeres
- Symeres
B.V., Kadijk 3, 9747 AT Groningen, The Netherlands
| | - Rudi A. J. O. Dierckx
- Department
of Nuclear Medicine and Molecular Imaging, University Medical Center
Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Ton J. Visser
- Symeres
B.V., Kadijk 3, 9747 AT Groningen, The Netherlands
| | - Erik F. J. de Vries
- Department
of Nuclear Medicine and Molecular Imaging, University Medical Center
Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Philip H. Elsinga
- Department
of Nuclear Medicine and Molecular Imaging, University Medical Center
Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
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Szczepańska K, Kuder KJ, Kieć-Kononowicz K. Dual-targeting Approach on Histamine H 3 and Sigma-1 Receptor Ligands as Promising Pharmacological Tools in the Treatment of CNS-linked Disorders. Curr Med Chem 2021; 28:2974-2995. [PMID: 32767910 DOI: 10.2174/0929867327666200806103144] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/16/2020] [Accepted: 07/16/2020] [Indexed: 11/22/2022]
Abstract
With the recent market approval of Pitolisant (Wakix®), the interest in clinical application for novel multifunctional histamine H3 receptor antagonists has clearly increased. Several combinations of different H3R pharmacophores with pharmacophoric elements of other G-protein coupled receptors, transporters, or enzymes have been synthesized by numerous pharmaceutical companies and academic institutions. Since central nervous system disorders are characterized by diverse physiological dysfunctions and deregulations of a complex network of signaling pathways, optimal multipotent drugs should simultaneously and peculiarly modulate selected groups of biological targets. Interestingly, very recent studies have shown that some clinically evaluated histamine H3 receptor antagonists possess a nanomolar affinity for sigma-1 receptor binding sites, suggesting that this property might play a role in their overall efficacy. The sigma-1 receptor, unusual and yet obscure protein, is supposed to be involved in numerous CNS pathologies through neuroprotection and neuroplasticity. These two different biological structures, histamine H3 and sigma-1 receptors, combined, can represent a potential fruitful target for therapeutic developments in tackling numerous human diseases.
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Affiliation(s)
- Katarzyna Szczepańska
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, Krakow 30-688, Poland
| | - Kamil J Kuder
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, Krakow 30-688, Poland
| | - Katarzyna Kieć-Kononowicz
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, Krakow 30-688, Poland
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Harwell V, Fasinu PS. Pitolisant and Other Histamine-3 Receptor Antagonists-An Update on Therapeutic Potentials and Clinical Prospects. MEDICINES 2020; 7:medicines7090055. [PMID: 32882898 PMCID: PMC7554886 DOI: 10.3390/medicines7090055] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 12/13/2022]
Abstract
Background: Besides its well-known role as a peripheral chemical mediator of immune, vascular, and cellular responses, histamine plays major roles in the central nervous system, particularly in the mediation of arousal and cognition-enhancement. These central effects are mediated by the histamine-3 auto receptors, the modulation of which is thought to be beneficial for the treatment of disorders that impair cognition or manifest with excessive daytime sleepiness. Methods: A database search of PubMed, Google Scholar, and clinicaltrials.gov was performed in June 2020. Full-text articles were screened and reviewed to provide an update on pitolisant and other histamine-3 receptor antagonists. Results: A new class of drugs—histamine-3 receptor antagonists—has emerged with the approval of pitolisant for the treatment of narcolepsy with or without cataplexy. At the recommended dose, pitolisant is well tolerated and effective. It has also been evaluated for potential therapeutic benefit in Parkinson disease, epilepsy, attention deficit hyperactivity disorder, Alzheimer’s disease, and dementia. Limited studies have shown pitolisant to lack abuse potential which will be a major advantage over existing drug options for narcolepsy. Several histamine-3 receptor antagonists are currently in development for a variety of clinical indications. Conclusions: Although limited clinical studies have been conducted on this new class of drugs, the reviewed literature showed promising results for future additions to the clinical indications of pitolisant, and the expansion of the list of approved drugs in this class for a variety of indications.
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The Dual-Active Histamine H 3 Receptor Antagonist and Acetylcholine Esterase Inhibitor E100 Alleviates Autistic-Like Behaviors and Oxidative Stress in Valproic Acid Induced Autism in Mice. Int J Mol Sci 2020; 21:ijms21113996. [PMID: 32503208 PMCID: PMC7312782 DOI: 10.3390/ijms21113996] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/21/2020] [Accepted: 05/27/2020] [Indexed: 12/16/2022] Open
Abstract
The histamine H3 receptor (H3R) functions as auto- and hetero-receptors, regulating the release of brain histamine (HA) and acetylcholine (ACh), respectively. The enzyme acetylcholine esterase (AChE) is involved in the metabolism of brain ACh. Both brain HA and ACh are implicated in several cognitive disorders like Alzheimer’s disease, schizophrenia, anxiety, and narcolepsy, all of which are comorbid with autistic spectrum disorder (ASD). Therefore, the novel dual-active ligand E100 with high H3R antagonist affinity (hH3R: Ki = 203 nM) and balanced AChE inhibitory effect (EeAChE: IC50 = 2 µM and EqBuChE: IC50 = 2 µM) was investigated on autistic-like sociability, repetitive/compulsive behaviour, anxiety, and oxidative stress in male C57BL/6 mice model of ASD induced by prenatal exposure to valproic acid (VPA, 500 mg/kg, intraperitoneal (i.p.)). Subchronic systemic administration with E100 (5, 10, and 15 mg/kg, i.p.) significantly and dose-dependently attenuated sociability deficits of autistic (VPA) mice in three-chamber behaviour (TCB) test (all p < 0.05). Moreover, E100 significantly improved repetitive and compulsive behaviors by reducing the increased percentage of marbles buried in marble-burying behaviour (MBB) (all p < 0.05). Furthermore, pre-treatment with E100 (10 and 15 mg/kg, i.p.) corrected decreased anxiety levels (p < 0.05), however, failed to restore hyperactivity observed in elevated plus maze (EPM) test. In addition, E100 (10 mg/kg, i.p.) mitigated oxidative stress status by increasing the levels of decreased glutathione (GSH), superoxide dismutase (SOD), and catalase (CAT), and decreasing the elevated levels of malondialdehyde (MDA) in the cerebellar tissues (all p < 0.05). Additionally, E100 (10 mg/kg, i.p.) significantly reduced the elevated levels of AChE activity in VPA mice (p < 0.05). These results demonstrate the promising effects of E100 on in-vivo VPA-induced ASD-like features in mice, and provide evidence that a potent dual-active H3R antagonist and AChE inhibitor (AChEI) is a potential drug candidate for future therapeutic management of autistic-like behaviours.
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10
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Eissa N, Azimullah S, Jayaprakash P, Jayaraj RL, Reiner D, Ojha SK, Beiram R, Stark H, Łażewska D, Kieć-Kononowicz K, Sadek B. The dual-active histamine H3 receptor antagonist and acetylcholine esterase inhibitor E100 ameliorates stereotyped repetitive behavior and neuroinflammmation in sodium valproate induced autism in mice. Chem Biol Interact 2019; 312:108775. [DOI: 10.1016/j.cbi.2019.108775] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 07/17/2019] [Accepted: 07/29/2019] [Indexed: 01/03/2023]
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11
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González-Hernández E, Aparicio R, Garayoa M, Montero MJ, Sevilla MÁ, Pérez-Melero C. Dihydropyrimidine-2-thiones as Eg5 inhibitors and L-type calcium channel blockers: potential antitumour dual agents. MEDCHEMCOMM 2019; 10:1589-1598. [PMID: 31673316 DOI: 10.1039/c9md00108e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 06/29/2019] [Indexed: 11/21/2022]
Abstract
The use of multitarget drugs has evolved as an alternative to "magic bullets" for the treatment of complex diseases such as cancer, in order to affect simultaneously several targets relevant to the disease. We have designed and synthesized a series of dual agents as both Eg5 inhibitors and calcium channel blockers, bearing a 4-aryldihydropyrimidine core. Compound 2 (aryl: 3-nitrophenyl) was selected as potential dual agent due to displaying both activities: it is a vasorelaxant agent (>90% relaxation at 10-5 M in KCl-precontracted aorta rings), it decreases the response to calcium and it is cytotoxic to MCF-7 (breast), HCT-116 (colon) and A-549 (lung) cancer cell lines. The dual mechanism of action was confirmed by blocking (-)-BAY K8644-induced vascular contraction and production of monopolar spindles, typical of Eg5 inhibition. Docking suggests that both (R) and (S)-enantiomers could bind Eg5.
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Affiliation(s)
- Elena González-Hernández
- Pharmaceutical Sciences Department , School of Pharmacy , University of Salamanca , Campus Miguel de Unamuno , 37007 Salamanca , Spain .
| | - Rubén Aparicio
- Physiology and Pharmacology Department , School of Pharmacy , University of Salamanca , Campus Miguel de Unamuno , 37007 Salamanca , Spain . .,Institute of Biomedical Research of Salamanca (IBSAL) , University Hospital of Salamanca , Paseo de San Vicente, 58-182 , 37007 Salamanca , Spain
| | - Mercedes Garayoa
- Institute of Biomedical Research of Salamanca (IBSAL) , University Hospital of Salamanca , Paseo de San Vicente, 58-182 , 37007 Salamanca , Spain.,Cancer Research Center , University of Salamanca-CSIC , Campus Miguel de Unamuno , 37007 Salamanca , Spain
| | - M José Montero
- Physiology and Pharmacology Department , School of Pharmacy , University of Salamanca , Campus Miguel de Unamuno , 37007 Salamanca , Spain . .,Institute of Biomedical Research of Salamanca (IBSAL) , University Hospital of Salamanca , Paseo de San Vicente, 58-182 , 37007 Salamanca , Spain
| | - M Ángeles Sevilla
- Physiology and Pharmacology Department , School of Pharmacy , University of Salamanca , Campus Miguel de Unamuno , 37007 Salamanca , Spain . .,Institute of Biomedical Research of Salamanca (IBSAL) , University Hospital of Salamanca , Paseo de San Vicente, 58-182 , 37007 Salamanca , Spain
| | - Concepción Pérez-Melero
- Pharmaceutical Sciences Department , School of Pharmacy , University of Salamanca , Campus Miguel de Unamuno , 37007 Salamanca , Spain . .,Institute of Biomedical Research of Salamanca (IBSAL) , University Hospital of Salamanca , Paseo de San Vicente, 58-182 , 37007 Salamanca , Spain.,Centre for Research on Tropical Diseases (CIETUS) , University of Salamanca , Spain
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12
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Ghamari N, Zarei O, Arias-Montaño JA, Reiner D, Dastmalchi S, Stark H, Hamzeh-Mivehroud M. Histamine H 3 receptor antagonists/inverse agonists: Where do they go? Pharmacol Ther 2019; 200:69-84. [PMID: 31028835 DOI: 10.1016/j.pharmthera.2019.04.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 04/19/2019] [Indexed: 12/16/2022]
Abstract
Since the discovery of the histamine H3 receptor in 1983, tremendous advances in the pharmacological aspects of H3 receptor antagonists/inverse agonists have been accomplished in preclinical studies. At present, there are several drug candidates that reached clinical trial studies for various indications. However, entrance of these candidates to the pharmaceutical market is not free from challenges, and a variety of difficulties is engaged with their developmental process. In this review, the potential role of H3 receptors in the pathophysiology of various central nervous system, metabolic and allergic diseases is discussed. Thereafter, the current status for H3 receptor antagonists/inverse agonists in ongoing clinical trial studies is reviewed and obstacles in developing these agents are emphasized.
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Affiliation(s)
- Nakisa Ghamari
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Omid Zarei
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran; Neurosciences Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - José-Antonio Arias-Montaño
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del IPN, Av. Instituto Politécnico Nacional 2508, Zacatenco, 07360 Ciudad de México, México
| | - David Reiner
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Universitaetsstr. 1, 40225 Duesseldorf, Germany
| | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Holger Stark
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Universitaetsstr. 1, 40225 Duesseldorf, Germany.
| | - Maryam Hamzeh-Mivehroud
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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13
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Tatarkiewicz J, Rzodkiewicz P, Żochowska M, Staniszewska A, Bujalska-Zadrożny M. New antihistamines - perspectives in the treatment of some allergic and inflammatory disorders. Arch Med Sci 2019; 15:537-553. [PMID: 30899308 PMCID: PMC6425212 DOI: 10.5114/aoms.2017.68534] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 03/13/2017] [Indexed: 12/29/2022] Open
Affiliation(s)
- Jan Tatarkiewicz
- Department of Pharmacodynamics, Centre for Preclinical Research and Technology, Medical University of Warsaw, Warsaw, Poland
| | - Przemysław Rzodkiewicz
- Department of Biochemistry and Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, Warsaw, Poland
- Department of General and Experimental Pathology, Medical University of Warsaw, Warsaw, Poland
| | - Małgorzata Żochowska
- Department of Pharmacodynamics, Centre for Preclinical Research and Technology, Medical University of Warsaw, Warsaw, Poland
| | - Anna Staniszewska
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Warsaw, Poland
| | - Magdalena Bujalska-Zadrożny
- Department of Pharmacodynamics, Centre for Preclinical Research and Technology, Medical University of Warsaw, Warsaw, Poland
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14
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Staszewski M, Stasiak A, Karcz T, McNaught Flores D, Fogel WA, Kieć-Kononowicz K, Leurs R, Walczyński K. Design, synthesis, and in vitro and in vivo characterization of 1-{4-[4-(substituted)piperazin-1-yl]butyl}guanidines and their piperidine analogues as histamine H 3 receptor antagonists. MEDCHEMCOMM 2019; 10:234-251. [PMID: 30881612 DOI: 10.1039/c8md00527c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 11/29/2018] [Indexed: 02/01/2023]
Abstract
Previously, we have shown that 1-substituted-[4-(7-phenoxyheptylpiperazin-1-yl)butyl]guanidine with electron withdrawing substituents at position 4 in the benzyl moiety exhibits high in vitro affinities toward the guinea pig jejunal histamine H3 receptor with pA 2 ranging from 8.49 to 8.43. Here, we present data on the impact of replacement of the piperazine scaffold by the piperidine ring (compounds 2a and 2b), moving benzyl- and 4-trifluoromethylbenzyl substituents from position 1 to 3 of the guanidine moiety (compounds 2c and 2d), which decreases the guanidine basicity (compound 2e), and the influence of individual synthons (compounds 2f-h), present in the lead compounds 1b and 1c, on the antagonistic activity against the histamine H3 receptor. Additionally, the most active compounds 1a, 1c, and 1d were evaluated for their affinity to the rat histamine H3 receptor and the human histamine H3 and H4 receptors. It was also shown that compounds 1a, 1c and 1d, given parenterally for five days, reduced the food intake of rats and did not influence the brain histamine or noradrenaline concentrations; however, significantly reduced serotonin and dopamine concentrations were found in rats administered with compounds 1a and 1c, respectively.
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Affiliation(s)
- Marek Staszewski
- Department of Synthesis and Technology of Drugs , Medical University of Lodz , ul. Muszyńskiego 1 , 90-151 Łódź , Poland . ; ; Tel: +48 42 6779194 ; Tel: +48 42 6779196
| | - Anna Stasiak
- Department of Hormone Biochemistry , Medical University of Lodz , ul. Żeligowskiego 7/9 , 90-752 Łódź , Poland . ;
| | - Tadeusz Karcz
- Department of Technology and Biotechnology of Drugs , Faculty of Pharmacy , Jagiellonian UniversityMedical College , ul. Medyczna 9 , 30-688 Kraków , Poland . ;
| | - Daniel McNaught Flores
- Amsterdam Institute of Molecules , Medicines & Systems, Division of Medicinal Chemistry , Vrije Universiteit Amsterdam , De Boelelaan 1108 , 1081 HZ Amsterdam , The Netherlands . ;
| | - Wiesława Agnieszka Fogel
- Department of Hormone Biochemistry , Medical University of Lodz , ul. Żeligowskiego 7/9 , 90-752 Łódź , Poland . ;
| | - Katarzyna Kieć-Kononowicz
- Department of Technology and Biotechnology of Drugs , Faculty of Pharmacy , Jagiellonian UniversityMedical College , ul. Medyczna 9 , 30-688 Kraków , Poland . ;
| | - Rob Leurs
- Amsterdam Institute of Molecules , Medicines & Systems, Division of Medicinal Chemistry , Vrije Universiteit Amsterdam , De Boelelaan 1108 , 1081 HZ Amsterdam , The Netherlands . ;
| | - Krzysztof Walczyński
- Department of Synthesis and Technology of Drugs , Medical University of Lodz , ul. Muszyńskiego 1 , 90-151 Łódź , Poland . ; ; Tel: +48 42 6779194 ; Tel: +48 42 6779196
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15
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Varaschin RK, Allen NA, Rosenberg MJ, Valenzuela CF, Savage DD. Prenatal Alcohol Exposure Increases Histamine H 3 Receptor-Mediated Inhibition of Glutamatergic Neurotransmission in Rat Dentate Gyrus. Alcohol Clin Exp Res 2018; 42:295-305. [PMID: 29315624 PMCID: PMC5785429 DOI: 10.1111/acer.13574] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 11/28/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND We have reported that prenatal alcohol exposure (PAE)-induced deficits in dentate gyrus, long-term potentiation (LTP), and memory are ameliorated by the histamine H3 receptor inverse agonist ABT-239. Curiously, ABT-239 did not enhance LTP or memory in control offspring. Here, we initiated an investigation of how PAE alters histaminergic neurotransmission in the dentate gyrus and other brain regions employing combined radiohistochemical and electrophysiological approaches in vitro to examine histamine H3 receptor number and function. METHODS Long-Evans rat dams voluntarily consumed either a 0% or 5% ethanol solution 4 hours each day throughout gestation. This pattern of drinking, which produces a mean peak maternal serum ethanol concentration of 60.8 ± 5.8 mg/dl, did not affect maternal weight gain, litter size, or offspring birthweight. RESULTS Radiohistochemical studies in adult offspring revealed that specific [3 H]-A349821 binding to histamine H3 receptors was not different in PAE rats compared to controls. However, H3 receptor-mediated Gi /Go protein-effector coupling, as measured by methimepip-stimulated [35 S]-GTPγS binding, was significantly increased in cerebral cortex, cerebellum, and dentate gyrus of PAE rats compared to control. A LIGAND analysis of detailed methimepip concentration-response curves in dentate gyrus indicated that PAE significantly elevates receptor-effector coupling by a lower affinity H3 receptor population without significantly altering the affinities of H3 receptor subpopulations. In agreement with the [35 S]-GTPγS studies, a similar range of methimepip concentrations also inhibited electrically evoked field excitatory postsynaptic potential responses and increased paired-pulse ratio, a measure of decreased glutamate release, to a significantly greater extent in dentate gyrus slices from PAE rats than in controls. CONCLUSIONS These results suggest that a PAE-induced elevation in H3 receptor-mediated inhibition of glutamate release from perforant path terminals as 1 mechanism contributing the LTP deficits previously observed in the dentate gyrus of PAE rats, as well as providing a mechanistic basis for the efficacy of H3 receptor inverse agonists for ameliorating these deficits.
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Affiliation(s)
- Rafael K Varaschin
- Department of Neurosciences, University of New Mexico School of Medicine, Albuquerque, New Mexico, 87131
| | - Nyika A Allen
- Department of Neurosciences, University of New Mexico School of Medicine, Albuquerque, New Mexico, 87131
| | - Martina J Rosenberg
- Department of Neurosciences, University of New Mexico School of Medicine, Albuquerque, New Mexico, 87131
| | - C Fernando Valenzuela
- Department of Neurosciences, University of New Mexico School of Medicine, Albuquerque, New Mexico, 87131
| | - Daniel D Savage
- Department of Neurosciences, University of New Mexico School of Medicine, Albuquerque, New Mexico, 87131
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16
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Bautista‐Aguilera ÓM, Hagenow S, Palomino‐Antolin A, Farré‐Alins V, Ismaili L, Joffrin P, Jimeno ML, Soukup O, Janočková J, Kalinowsky L, Proschak E, Iriepa I, Moraleda I, Schwed JS, Romero Martínez A, López‐Muñoz F, Chioua M, Egea J, Ramsay RR, Marco‐Contelles J, Stark H. Multipotente Liganden mit kombinierter Cholinesterase‐ und Monoaminooxidase‐Inhibition sowie Histamin‐H
3
R‐Antagonismus bei neurodegenerativen Erkrankungen. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Óscar M. Bautista‐Aguilera
- Laboratorio de Química Médica Instituto de Química Orgánica General CSIC and Centro de Química Orgánica “Lora-Tamayo”, CSIC C/ Juan de la Cierva 3 28006 Madrid Spanien
| | - Stefanie Hagenow
- Institut für Pharmazeutische und Medizinische Chemie Heinrich-Heine-Universität Düsseldorf Universitätsstrasse 1 40225 Düsseldorf Deutschland
| | - Alejandra Palomino‐Antolin
- Instituto de Investigación Sanitaria, Servicio de Farmacología Clínica Hospital Universitario de la Princesa Calle de Diego de León, 62 28006 Madrid Spanien
| | - Víctor Farré‐Alins
- Instituto de Investigación Sanitaria, Servicio de Farmacología Clínica Hospital Universitario de la Princesa Calle de Diego de León, 62 28006 Madrid Spanien
| | - Lhassane Ismaili
- Neurosciences Intégratives et Cliniques EA 481 Université Bourgogne Franche-Comté Rue Ambroise Paré 25000 Besançon Frankreich
| | - Pierre‐Louis Joffrin
- Biomedical Sciences Research Complex University of St Andrews, Biomolecular Sciences Building North Haugh St Andrews KY16 9ST Großbritannien
| | - María L. Jimeno
- Laboratorio de Química Médica Instituto de Química Orgánica General CSIC and Centro de Química Orgánica “Lora-Tamayo”, CSIC C/ Juan de la Cierva 3 28006 Madrid Spanien
| | - Ondřej Soukup
- Centrum biomedicínského výzkumu Fakultní nemocnice Hradec Králové Sokolska 581 50005 Hradec Kralove Tschechische Republik
| | - Jana Janočková
- Centrum biomedicínského výzkumu Fakultní nemocnice Hradec Králové Sokolska 581 50005 Hradec Kralove Tschechische Republik
| | - Lena Kalinowsky
- Institut für Pharmazeutische Chemie Goethe Universität Frankfurt Max-von-Laue-Strasse 9 60438 Frankfurt Deutschland
| | - Ewgenij Proschak
- Institut für Pharmazeutische Chemie Goethe Universität Frankfurt Max-von-Laue-Strasse 9 60438 Frankfurt Deutschland
| | - Isabel Iriepa
- Departamento de Química Orgánica y Química Inorgánica Universidad de Alcalá Ctra. Madrid-Barcelona, Km. 33,6 28871 Madrid Spanien
| | - Ignacio Moraleda
- Departamento de Química Orgánica y Química Inorgánica Universidad de Alcalá Ctra. Madrid-Barcelona, Km. 33,6 28871 Madrid Spanien
| | - Johannes S. Schwed
- Institut für Pharmazeutische und Medizinische Chemie Heinrich-Heine-Universität Düsseldorf Universitätsstrasse 1 40225 Düsseldorf Deutschland
| | - Alejandro Romero Martínez
- Departamento de Toxicología y Farmacología Facultad de Veterinaria, UCM Av. Puerta de Hierro, s/n 28040 Madrid Spanien
| | - Francisco López‐Muñoz
- Universidad Camilo José Cela C/ Castillo de Alarcón, 49 28692 Villanueva de la Cañada Madrid Spanien
| | - Mourad Chioua
- Laboratorio de Química Médica Instituto de Química Orgánica General CSIC and Centro de Química Orgánica “Lora-Tamayo”, CSIC C/ Juan de la Cierva 3 28006 Madrid Spanien
| | - Javier Egea
- Instituto de Investigación Sanitaria, Servicio de Farmacología Clínica Hospital Universitario de la Princesa Calle de Diego de León, 62 28006 Madrid Spanien
| | - Rona R. Ramsay
- Biomedical Sciences Research Complex University of St Andrews, Biomolecular Sciences Building North Haugh St Andrews KY16 9ST Großbritannien
| | - José Marco‐Contelles
- Laboratorio de Química Médica Instituto de Química Orgánica General CSIC and Centro de Química Orgánica “Lora-Tamayo”, CSIC C/ Juan de la Cierva 3 28006 Madrid Spanien
| | - Holger Stark
- Institut für Pharmazeutische und Medizinische Chemie Heinrich-Heine-Universität Düsseldorf Universitätsstrasse 1 40225 Düsseldorf Deutschland
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17
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Discovery of novel steroidal histamine H 3 receptor antagonists/inverse agonists. Bioorg Med Chem Lett 2017; 27:4525-4530. [PMID: 28888822 DOI: 10.1016/j.bmcl.2017.08.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 08/28/2017] [Accepted: 08/29/2017] [Indexed: 12/22/2022]
Abstract
Emerging from an HTS campaign, novel steroid-based histamine H3 receptor antagonists were identified and characterized. Structural moieties of the hit compounds were combined to improve binding affinities which resulted in compound 4 as lead molecule. During the lead optimization due to the versatile modifications of diamino steroid derivatives, several in vitro potent compounds with subnanomolar binding affinities to histamine H3 receptors were found. The unfavorable binding to rat muscarinic receptors was successfully reduced by tuning the basicity. Compound 20 showed significant in vivo activity in the rat dipsogenia model and could serve as a pharmacological tool in the future.
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18
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Bautista-Aguilera ÓM, Hagenow S, Palomino-Antolin A, Farré-Alins V, Ismaili L, Joffrin PL, Jimeno ML, Soukup O, Janočková J, Kalinowsky L, Proschak E, Iriepa I, Moraleda I, Schwed JS, Romero Martínez A, López-Muñoz F, Chioua M, Egea J, Ramsay RR, Marco-Contelles J, Stark H. Multitarget-Directed Ligands Combining Cholinesterase and Monoamine Oxidase Inhibition with Histamine H 3 R Antagonism for Neurodegenerative Diseases. Angew Chem Int Ed Engl 2017; 56:12765-12769. [PMID: 28861918 DOI: 10.1002/anie.201706072] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 07/27/2017] [Indexed: 11/06/2022]
Abstract
The therapy of complex neurodegenerative diseases requires the development of multitarget-directed drugs (MTDs). Novel indole derivatives with inhibitory activity towards acetyl/butyrylcholinesterases and monoamine oxidases A/B as well as the histamine H3 receptor (H3R) were obtained by optimization of the neuroprotectant ASS234 by incorporating generally accepted H3R pharmacophore motifs. These small-molecule hits demonstrated balanced activities at the targets, mostly in the nanomolar concentration range. Additional in vitro studies showed antioxidative neuroprotective effects as well as the ability to penetrate the blood-brain barrier. With this promising in vitro profile, contilisant (at 1 mg kg-1 i.p.) also significantly improved lipopolysaccharide-induced cognitive deficits.
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Affiliation(s)
- Óscar M Bautista-Aguilera
- Laboratorio de Química Médica, Instituto de Química Orgánica General, CSIC and Centro de Química Orgánica "Lora-Tamayo", CSIC, C/ Juan de la Cierva 3, 28006, Madrid, Spain
| | - Stefanie Hagenow
- Institut für Pharmazeutische und Medizinische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, 40225, Düsseldorf, Germany
| | - Alejandra Palomino-Antolin
- Instituto de Investigación Sanitaria, Servicio de Farmacología Clínica, Hospital Universitario de la Princesa, Calle de Diego de León, 62, 28006, Madrid, Spain
| | - Víctor Farré-Alins
- Instituto de Investigación Sanitaria, Servicio de Farmacología Clínica, Hospital Universitario de la Princesa, Calle de Diego de León, 62, 28006, Madrid, Spain
| | - Lhassane Ismaili
- Neurosciences Intégratives et Cliniques EA 481, Université Bourgogne Franche-Comté, Rue Ambroise Paré, 25000, Besançon, France
| | - Pierre-Louis Joffrin
- Biomedical Sciences Research Complex, University of St Andrews, Biomolecular Sciences Building, North Haugh, St Andrews, KY16 9ST, UK
| | - María L Jimeno
- Laboratorio de Química Médica, Instituto de Química Orgánica General, CSIC and Centro de Química Orgánica "Lora-Tamayo", CSIC, C/ Juan de la Cierva 3, 28006, Madrid, Spain
| | - Ondřej Soukup
- Centrum biomedicínského výzkumu, Fakultní nemocnice Hradec Králové, Sokolska 581, 50005, Hradec Kralove, Czech Republic
| | - Jana Janočková
- Centrum biomedicínského výzkumu, Fakultní nemocnice Hradec Králové, Sokolska 581, 50005, Hradec Kralove, Czech Republic
| | - Lena Kalinowsky
- Institut für Pharmazeutische Chemie, Goethe Universität Frankfurt, Max-von-Laue-Strasse 9, 60438, Frankfurt, Germany
| | - Ewgenij Proschak
- Institut für Pharmazeutische Chemie, Goethe Universität Frankfurt, Max-von-Laue-Strasse 9, 60438, Frankfurt, Germany
| | - Isabel Iriepa
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, Ctra. Madrid-Barcelona, Km. 33,6, 28871, Madrid, Spain
| | - Ignacio Moraleda
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, Ctra. Madrid-Barcelona, Km. 33,6, 28871, Madrid, Spain
| | - Johannes S Schwed
- Institut für Pharmazeutische und Medizinische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, 40225, Düsseldorf, Germany
| | - Alejandro Romero Martínez
- Departamento de Toxicología y Farmacología, Facultad de Veterinaria, UCM, Av. Puerta de Hierro, s/n, 28040, Madrid, Spain
| | - Francisco López-Muñoz
- Universidad Camilo José Cela, C/ Castillo de Alarcón, 49, 28692, Villanueva de la Cañada, Madrid, Spain
| | - Mourad Chioua
- Laboratorio de Química Médica, Instituto de Química Orgánica General, CSIC and Centro de Química Orgánica "Lora-Tamayo", CSIC, C/ Juan de la Cierva 3, 28006, Madrid, Spain
| | - Javier Egea
- Instituto de Investigación Sanitaria, Servicio de Farmacología Clínica, Hospital Universitario de la Princesa, Calle de Diego de León, 62, 28006, Madrid, Spain
| | - Rona R Ramsay
- Biomedical Sciences Research Complex, University of St Andrews, Biomolecular Sciences Building, North Haugh, St Andrews, KY16 9ST, UK
| | - José Marco-Contelles
- Laboratorio de Química Médica, Instituto de Química Orgánica General, CSIC and Centro de Química Orgánica "Lora-Tamayo", CSIC, C/ Juan de la Cierva 3, 28006, Madrid, Spain
| | - Holger Stark
- Institut für Pharmazeutische und Medizinische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, 40225, Düsseldorf, Germany
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19
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Hu W, Chen Z. The roles of histamine and its receptor ligands in central nervous system disorders: An update. Pharmacol Ther 2017; 175:116-132. [DOI: 10.1016/j.pharmthera.2017.02.039] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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20
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Schaller D, Hagenow S, Alpert G, Naß A, Schulz R, Bermudez M, Stark H, Wolber G. Systematic Data Mining Reveals Synergistic H3R/MCHR1 Ligands. ACS Med Chem Lett 2017. [PMID: 28626527 DOI: 10.1021/acsmedchemlett.7b00118] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
In this study, we report a ligand-centric data mining approach that guided the identification of suitable target profiles for treating obesity. The newly developed method is based on identifying target pairs for synergistic positive effects and also encompasses the exclusion of compounds showing a detrimental effect on obesity treatment (off-targets). Ligands with known activity against obesity-relevant targets were compared using fingerprint representations. Similar compounds with activities to different targets were evaluated for the mechanism of action since activation or deactivation of drug targets determines the pharmacological effect. In vitro validation of the modeling results revealed that three known modulators of melanin-concentrating hormone receptor 1 (MCHR1) show a previously unknown submicromolar affinity to the histamine H3 receptor (H3R). This synergistic activity may present a novel therapeutic option against obesity.
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Affiliation(s)
- David Schaller
- Pharmaceutical
and Medicinal Chemistry, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany
| | - Stefanie Hagenow
- Pharmaceutical
and Medicinal Chemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Gina Alpert
- Pharmaceutical
and Medicinal Chemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Alexandra Naß
- Pharmaceutical
and Medicinal Chemistry, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany
| | - Robert Schulz
- Pharmaceutical
and Medicinal Chemistry, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany
| | - Marcel Bermudez
- Pharmaceutical
and Medicinal Chemistry, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany
| | - Holger Stark
- Pharmaceutical
and Medicinal Chemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Gerhard Wolber
- Pharmaceutical
and Medicinal Chemistry, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany
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21
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22
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Sadek B, Khan N, Darras FH, Pockes S, Decker M. The dual-acting AChE inhibitor and H3 receptor antagonist UW-MD-72 reverses amnesia induced by scopolamine or dizocilpine in passive avoidance paradigm in rats. Physiol Behav 2016; 165:383-91. [DOI: 10.1016/j.physbeh.2016.08.022] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Revised: 08/23/2016] [Accepted: 08/23/2016] [Indexed: 12/31/2022]
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Kubo M, Kishi T, Matsunaga S, Iwata N. Histamine H3 Receptor Antagonists for Alzheimer's Disease: A Systematic Review and Meta-Analysis of Randomized Placebo-Controlled Trials. J Alzheimers Dis 2016; 48:667-71. [PMID: 26402104 DOI: 10.3233/jad-150393] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND No comprehensive meta-analysis has been performed concerning the efficacy and tolerability of histamine H3 receptor antagonists (H3R-ANTs) in Alzheimer's disease patients. OBJECTIVE We performed a systematic review and meta-analysis of double-blind randomized placebo-controlled trials (RCTs) of H3R-ANTs for Alzheimer's disease. METHODS Relevant studies were identified through searches of PubMed, databases of the Cochrane Library, and PsycINFO citations up to June 19, 2015. The primary outcome was a change in the Mini-Mental State Examination (MMSE) scores. Secondary outcomes were Neuropsychiatric Inventory (NPI) scores, discontinuation rate, and individual adverse events/side effects. Risk ratios, numbers-needed-to-treat/harm, and standardized mean differences were calculated based on a random effects model. RESULTS The computerized search initially yielded 33 studies after excluding duplicates. We excluded 29 of these articles following a review of titles and abstracts and one RCT including healthy subjects after full-text review. We identified three RCTs (two on GSK239512 and one on ABT-288) including 402 patients. Pooled H3R-ANTs were not superior to placebo for improvement in MMSE and NPI scores. Discontinuation rate and individual adverse events/side effects did not differ among the pooled groups. CONCLUSIONS Our results suggest that H3R-ANTs are not effective in treating cognitive dysfunction in Alzheimer's disease. However, further studies with larger samples are required for definitive conclusions regarding responsive subpopulations.
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Sadek B, Saad A, Sadeq A, Jalal F, Stark H. Histamine H3 receptor as a potential target for cognitive symptoms in neuropsychiatric diseases. Behav Brain Res 2016; 312:415-30. [PMID: 27363923 DOI: 10.1016/j.bbr.2016.06.051] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 06/22/2016] [Accepted: 06/26/2016] [Indexed: 01/27/2023]
Abstract
The potential contributions of the brain histaminergic system in neurodegenerative diseases, and the possiblity of histamine-targeting treatments is attracting considerable interests. The histamine H3 receptor (H3R) is expressed mainly in the central nervous system, and is, consequently, an attractive pharmacological target. Although recently described clinical trials have been disappointing in attention deficit hyperactivity disorder (ADHD) and schizophrenia (SCH), numerous H3R antagonists, including pitolisant, demonstrate potential in the treatment of narcolepsy, excessive daytime sleepiness associated with cognitive impairment, epilepsy, and Alzheimer's disease (AD). This review focuses on the recent preclinical as well as clinical results that support the relevance of H3R antagonists for the treatment of cognitive symptoms in neuropsychiatric diseases, namely AD, epilepsy and SCH. The review summarizes the role of histaminergic neurotransmission with focus on these brain disorders, as well as the effects of numerous H3R antagonists on animal models and humans.
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Affiliation(s)
- Bassem Sadek
- Department of Pharmacology & Therapeutics, College of Medicine & Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain, United Arab Emirates.
| | - Ali Saad
- Department of Pharmacology & Therapeutics, College of Medicine & Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain, United Arab Emirates
| | - Adel Sadeq
- College of Pharmacy, Al Ain University of Science and Technology, Al Ain, United Arab Emirates
| | - Fakhreya Jalal
- Department of Pharmacology & Therapeutics, College of Medicine & Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain, United Arab Emirates
| | - Holger Stark
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich Heine University, Universitaetsstr. 1, 40225 Düsseldorf, Germany
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Khanfar MA, Affini A, Lutsenko K, Nikolic K, Butini S, Stark H. Multiple Targeting Approaches on Histamine H3 Receptor Antagonists. Front Neurosci 2016; 10:201. [PMID: 27303254 PMCID: PMC4884744 DOI: 10.3389/fnins.2016.00201] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 04/25/2016] [Indexed: 01/23/2023] Open
Abstract
With the very recent market approval of pitolisant (Wakix®), the interest in clinical applications of novel multifunctional histamine H3 receptor antagonists has clearly increased. Since histamine H3 receptor antagonists in clinical development have been tested for a variety of different indications, the combination of pharmacological properties in one molecule for improved pharmacological effects and reduced unwanted side-effects is rationally based on the increasing knowledge on the complex neurotransmitter regulations. The polypharmacological approaches on histamine H3 receptor antagonists on different G-protein coupled receptors, transporters, enzymes as well as on NO-signaling mechanism are described, supported with some lead structures.
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Affiliation(s)
- Mohammad A Khanfar
- Stark Lab, Institut fuer Pharmazeutische and Medizinische Chemie, Heinrich-Heine-Universitaet DuesseldorfDuesseldorf, Germany; Faculty of Pharmacy, The University of JordanAmman, Jordan
| | - Anna Affini
- Stark Lab, Institut fuer Pharmazeutische and Medizinische Chemie, Heinrich-Heine-Universitaet Duesseldorf Duesseldorf, Germany
| | - Kiril Lutsenko
- Stark Lab, Institut fuer Pharmazeutische and Medizinische Chemie, Heinrich-Heine-Universitaet Duesseldorf Duesseldorf, Germany
| | - Katarina Nikolic
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade Belgrade, Serbia
| | - Stefania Butini
- Department of Biotechnology, Chemistry, and Pharmacy, European Research Centre for Drug Discovery and Development, University of Siena Siena, Italy
| | - Holger Stark
- Stark Lab, Institut fuer Pharmazeutische and Medizinische Chemie, Heinrich-Heine-Universitaet Duesseldorf Duesseldorf, Germany
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Kuder K, Łażewska D, Latacz G, Schwed JS, Karcz T, Stark H, Karolak-Wojciechowska J, Kieć-Kononowicz K. Chlorophenoxy aminoalkyl derivatives as histamine H(3)R ligands and antiseizure agents. Bioorg Med Chem 2015; 24:53-72. [PMID: 26690914 DOI: 10.1016/j.bmc.2015.11.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 11/12/2015] [Accepted: 11/19/2015] [Indexed: 12/20/2022]
Abstract
A series of twenty new chlorophenoxyalkylamine derivatives (9-28) was synthesized and evaluated on their binding properties at the human histamine H3 receptor (hH3R). The spacer alkyl chain contained five to seven carbon atoms. The highest affinities have shown the 4-chloro substituted derivatives 10 and 25 (Ki=133 and 128 nM, respectively) classified as antagonists in cAMP accumulation assay (EC50=72 and 75 nM, respectively). Synthesized compounds were also evaluated for anticonvulsant activity in Antiepileptic Screening Program (ASP) at National Institute of Neurological Disorders and Stroke (USA). Two compounds (4-chloro substituted derivatives: 20 and 26) were the most promising and showed in the MES seizure model in rats (after ip administration) ED50 values of 14 mg/kg and 13.18 mg/kg, respectively. Protective indexes (PI=TD50/ED50) were 3.2 for 20 and 3.8 for 26. Moreover, molecular modeling and docking studies were undertaken to explain affinity at hH3R of target compounds, and the experimentally and in silico estimation of properties like lipophilicity and metabolism was performed. Antiproliferative effects have been also investigated in vitro for selected compounds (10 and 25). These compounds neither possessed significant antiproliferative and antitumor activity, nor modulated CYP3A4 activity up to concentration of 10 μM.
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Affiliation(s)
- Kamil Kuder
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Technology and Biotechnology of Drugs, Medyczna 9, 30-688 Kraków, Poland
| | - Dorota Łażewska
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Technology and Biotechnology of Drugs, Medyczna 9, 30-688 Kraków, Poland
| | - Gniewomir Latacz
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Technology and Biotechnology of Drugs, Medyczna 9, 30-688 Kraków, Poland
| | - Johannes Stephan Schwed
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-University, Universitaetsstr. 1, 40225 Duesseldorf, Germany
| | - Tadeusz Karcz
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Technology and Biotechnology of Drugs, Medyczna 9, 30-688 Kraków, Poland
| | - Holger Stark
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-University, Universitaetsstr. 1, 40225 Duesseldorf, Germany
| | - Janina Karolak-Wojciechowska
- Institute of General and Ecological Chemistry, Technical University of Łódź, Żeromskiego 116 Str., 90-924 Łódź, Poland
| | - Katarzyna Kieć-Kononowicz
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Technology and Biotechnology of Drugs, Medyczna 9, 30-688 Kraków, Poland.
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Sadek B, Stark H. Cherry-picked ligands at histamine receptor subtypes. Neuropharmacology 2015; 106:56-73. [PMID: 26581501 DOI: 10.1016/j.neuropharm.2015.11.005] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 11/05/2015] [Accepted: 11/06/2015] [Indexed: 12/17/2022]
Abstract
Histamine, a biogenic amine, is considered as a principle mediator of multiple physiological effects through binding to its H1, H2, H3, and H4 receptors (H1-H4Rs). Currently, the HRs have gained attention as important targets for the treatment of several diseases and disorders ranging from allergy to Alzheimer's disease and immune deficiency. Accordingly, medicinal chemistry studies exploring histamine-like molecules and their physicochemical properties by binding and interacting with the four HRs has led to the development of a diversity of agonists and antagonists that display selectivity for each HR subtype. An overview on H1-R4Rs and developed ligands representing some key steps in development is provided here combined with a short description of structure-activity relationships for each class. Main chemical diversities, pharmacophores, and pharmacological profiles of most innovative H1-H4R agonists and antagonists are highlighted. Therefore, this overview should support the rational choice for the optimal ligand selection based on affinity, selectivity and efficacy data in biochemical and pharmacological studies. This article is part of the Special Issue entitled 'Histamine Receptors'.
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Affiliation(s)
- Bassem Sadek
- Department of Pharmacology and Therapeutics, College of Medicine & Health Sciences, United Arab Emirates University, PO Box 17666, Al Ain, United Arab Emirates.
| | - Holger Stark
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich Heine University, Universitaetsstr. 1, 40225 Düsseldorf, Germany
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The dual-acting H3 receptor antagonist and AChE inhibitor UW-MD-71 dose-dependently enhances memory retrieval and reverses dizocilpine-induced memory impairment in rats. Behav Brain Res 2015; 297:155-64. [PMID: 26467607 DOI: 10.1016/j.bbr.2015.10.022] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 10/04/2015] [Accepted: 10/06/2015] [Indexed: 11/24/2022]
Abstract
Both the histamine H3 receptor (H3R) and acetylcholine esterase (AChE) are involved in the regulation of release and metabolism of acetylcholine and several other central neurotransmitters. Therefore, dual-active H3R antagonists and AChE inhibitors (AChEIs) have shown in several studies to hold promise to treat cognitive disorders like Alzheimer's disease (AD). The novel dual-acting H3R antagonist and AChEI 7-(3-(piperidin-1-yl)propoxy)-1,2,3,9-tetrahydropyrrolo[2,1-b]quinazoline (UW-MD-71) with excellent selectivity profiles over both the three other HRs as well as the AChE's isoenzyme butyrylcholinesterase (BChE) shows high and balanced in vitro affinities at both H3R and AChE with IC50 of 33.9nM and hH3R antagonism with Ki of 76.2nM, respectively. In the present study, the effects of UW-MD-71 (1.25-5mg/kg, i.p.) on acquisition, consolidation, and retrieval in a one-trial inhibitory avoidance task in male rats were investigated applying donepezil (DOZ) and pitolisant (PIT) as reference drugs. Furthermore, the effects of UW-MD-71 on memory deficits induced by the non-competitive N-methyl-d-aspartate (NMDA) antagonist dizocilpine (DIZ) were tested. Our results indicate that administration of UW-MD-71 before the test session dose-dependently increased performance and enhanced procognitive effect on retrieval. However neither pre- nor post-training acute systemic administration of UW-MD-71 facilitated acquisition or consolidation. More importantly, UW-MD-71 (2.5mg/kg, i.p.) ameliorated the DIZ-induced amnesic effects. Furthermore, the procognitive activity of UW-MD-71 in retrieval was completely reversed and partly abrogated in DIZ-induced amnesia when rats were pretreated with the centrally-acting H2R antagonist zolantidine (ZOL), but not with the CNS penetrant H1R antagonist pyrilamine (PYR). These results demonstrate the procognitive effects of UW-MD-71 in two in vivo memory models, and are to our knowledge the first demonstration in vivo that a potent dual-acting H3R antagonist and AChEI is effective in improving retrieval processes in the one-trial inhibitory avoidance task and provide evidence to such compounds to treat cognitive disorders.
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Bahi A, Sadek B, Nurulain SM, Łażewska D, Kieć-Kononowicz K. The novel non-imidazole histamine H3 receptor antagonist DL77 reduces voluntary alcohol intake and ethanol-induced conditioned place preference in mice. Physiol Behav 2015; 151:189-97. [PMID: 26169446 DOI: 10.1016/j.physbeh.2015.07.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 06/28/2015] [Accepted: 07/08/2015] [Indexed: 12/16/2022]
Abstract
It has become clear that histamine H3 receptors (H3R) have been implicated in modulating ethanol intake and preference in laboratory animals. The novel non-imidazole H3R antagonist DL77 with excellent selectivity profile shows high in-vivo potency as well as in-vitro antagonist affinity with ED50 of 2.1 ± 0.2 mg/kg and pKi=8.08, respectively. In the present study, and applying an unlimited access two-bottle choice procedure, the anti-alcohol effects of the H3R antagonist, DL77 (0, 3, 10 and 30 mg/kg; i.p.), were investigated in adult mice. In this C57BL/6 line, effects of DL77 on voluntary alcohol intake and preference, as well as on total fluid intake were evaluated. Results have shown that DL77, dose-dependently, reduced both ethanol intake and preference. These effects were very selective as both saccharin and quinine, used to control for taste sensitivity, and intakes were not affected following DL77 pre-application. More importantly, systemic administration of DL77 (10 mg/kg) during acquisition inhibited ethanol-induced conditioned-place preference (EtOH-CPP) as measured using an unbiased protocol. The anti-alcohol activity observed for DL77 was abrogated when mice were pretreated with the selective H3R agonist R-(α)-methyl-histamine (RAMH) (10 mg/kg), or with the CNS penetrant H1R antagonist pyrilamine (PYR) (10mg/kg). These results suggest that DL77 has a predominant role in two in vivo effects of ethanol. Therefore, signaling via H3R is essential for ethanol-related consumption and conditioned reward and may represent a novel therapeutic pharmacological target to tackle ethanol abuse and alcoholism.
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Affiliation(s)
- Amine Bahi
- Department of Anatomy, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates.
| | - Bassem Sadek
- Department of Pharmacology & Therapeutics, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Syed M Nurulain
- Department of Pharmacology & Therapeutics, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Dorota Łażewska
- Jagiellonian University-Medical College, Faculty of Pharmacy, Department of Technology and Biotechnology of Drugs, Medyczna 9 St., 30-688 Kraków, Poland
| | - Katarzyna Kieć-Kononowicz
- Jagiellonian University-Medical College, Faculty of Pharmacy, Department of Technology and Biotechnology of Drugs, Medyczna 9 St., 30-688 Kraków, Poland
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30
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Huang G, Nimczick M, Decker M. Rational Modification of the Biological Profile of GPCR Ligands through Combination with Other Biologically Active Moieties. Arch Pharm (Weinheim) 2015; 348:531-40. [DOI: 10.1002/ardp.201500079] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 03/26/2015] [Accepted: 03/27/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Guozheng Huang
- Pharmazeutische und Medizinische Chemie; Institut für Pharmazie und Lebensmittelchemie; Julius-Maximilians-Universität Würzburg; Würzburg Germany
| | - Martin Nimczick
- Pharmazeutische und Medizinische Chemie; Institut für Pharmazie und Lebensmittelchemie; Julius-Maximilians-Universität Würzburg; Würzburg Germany
| | - Michael Decker
- Pharmazeutische und Medizinische Chemie; Institut für Pharmazie und Lebensmittelchemie; Julius-Maximilians-Universität Würzburg; Würzburg Germany
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