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Avila-Luna A, Gálvez-Rosas A, Aguirre-Pérez A, Hidalgo-Bravo A, Alfaro-Rodriguez A, Ríos C, Arias-Montaño JA, Bueno-Nava A. Chronic H 3R activation reduces L-Dopa-induced dyskinesia, normalizes cortical GABA and glutamate levels, and increases striatal dopamine D 1R mRNA expression in 6-hydroxydopamine-lesioned male rats. Psychopharmacology (Berl) 2023; 240:1221-1234. [PMID: 37086286 DOI: 10.1007/s00213-023-06339-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 02/09/2023] [Indexed: 04/23/2023]
Abstract
RATIONALE Dyskinesias induced by L-3,4-dihydroxyphenylalanine, L-Dopa (LIDs), are the major complication in the pharmacological treatment of Parkinson's disease. LIDs induce overactivity of the glutamatergic cortico-striatal projections, and drugs that reduce glutamatergic overactivity exert antidyskinetic actions. Chronic administration of immepip, agonist at histamine H3 receptors (H3R), reduces LIDs and diminishes GABA and glutamate content in striatal dialysates (Avila-Luna et al., Psychopharmacology 236: 1937-1948, 2019). OBJECTIVES AND METHODS In rats unilaterally lesioned with 6-hydroxydopamine in the substantia nigra pars compacta (SNc), we examined whether the chronic administration of immepip and their withdrawal modify LIDs, the effect of L-Dopa on glutamate and GABA content, and mRNA levels of dopamine D1 receptors (D1Rs) and H3Rs in the cerebral cortex and striatum. RESULTS The administration of L-Dopa for 21 days induced LIDs. This effect was accompanied by increased GABA and glutamate levels in the cerebral cortex ipsi and contralateral to the lesioned SNc, and immepip administration prevented (GABA) or reduced (glutamate) these actions. In the striatum, GABA content increased in the ipsilateral nucleus, an effect prevented by immepip. L-Dopa administration had no significant effects on striatal glutamate levels. In lesioned and L-Dopa-treated animals, D1R mRNA decreased in the ipsilateral striatum, an effect prevented by immepip administration. CONCLUSIONS Our results indicate that chronic H3R activation reduces LIDs and the overactivity of glutamatergic cortico-striatal projections, providing further evidence for an interaction between D1Rs and H3Rs in the cortex and striatum under normal and pathological conditions.
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Affiliation(s)
- Alberto Avila-Luna
- Coordinación de Neurociencias Básicas, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, SSa, Calzada México-Xochimilco 289, Arenal de Guadalupe, Ciudad de México, 14389, México
- Laboratorio de Neurofisiología Química de la Discapacidad, Coordinación de Neurociencias Básicas, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, SSa, Calz. México-Xochimilco 289, Arenal de Guadalupe, Ciudad de México, 14389, México
| | - Arturo Gálvez-Rosas
- Coordinación de Neurociencias Básicas, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, SSa, Calzada México-Xochimilco 289, Arenal de Guadalupe, Ciudad de México, 14389, México
- Laboratorio de Neurofisiología Química de la Discapacidad, Coordinación de Neurociencias Básicas, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, SSa, Calz. México-Xochimilco 289, Arenal de Guadalupe, Ciudad de México, 14389, México
| | - Alexander Aguirre-Pérez
- Laboratorio de Neurofisiología Química de la Discapacidad, Coordinación de Neurociencias Básicas, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, SSa, Calz. México-Xochimilco 289, Arenal de Guadalupe, Ciudad de México, 14389, México
| | - Alberto Hidalgo-Bravo
- Departamento de Medicina Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, SSa, Calzada México-Xochimilco 289, Arenal de Guadalupe, Ciudad de México, 14389, México
| | - Alfonso Alfaro-Rodriguez
- Coordinación de Neurociencias Básicas, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, SSa, Calzada México-Xochimilco 289, Arenal de Guadalupe, Ciudad de México, 14389, México
| | - Camilo Ríos
- Coordinación de Neurociencias Básicas, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, SSa, Calzada México-Xochimilco 289, Arenal de Guadalupe, Ciudad de México, 14389, México
- Departamento de Neuroquímica, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, SSa, Insurgentes Sur 3877, La Fama, Ciudad de México, 14269, México
- Laboratorio de Neurofarmacología Molecular, Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana, Unidad Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Ciudad de México, 04960, México
| | - José-Antonio Arias-Montaño
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del IPN, Av. IPN 2508, Zacatenco, Ciudad de México, 07360, México
| | - Antonio Bueno-Nava
- Coordinación de Neurociencias Básicas, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, SSa, Calzada México-Xochimilco 289, Arenal de Guadalupe, Ciudad de México, 14389, México.
- Laboratorio de Neurofisiología Química de la Discapacidad, Coordinación de Neurociencias Básicas, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, SSa, Calz. México-Xochimilco 289, Arenal de Guadalupe, Ciudad de México, 14389, México.
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Sharma A, Muresanu DF, Patnaik R, Menon PK, Tian ZR, Sahib S, Castellani RJ, Nozari A, Lafuente JV, Buzoianu AD, Skaper SD, Bryukhovetskiy I, Manzhulo I, Wiklund L, Sharma HS. Histamine H3 and H4 receptors modulate Parkinson's disease induced brain pathology. Neuroprotective effects of nanowired BF-2649 and clobenpropit with anti-histamine-antibody therapy. PROGRESS IN BRAIN RESEARCH 2021; 266:1-73. [PMID: 34689857 DOI: 10.1016/bs.pbr.2021.06.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Military personnel deployed in combat operations are highly prone to develop Parkinson's disease (PD) in later lives. PD largely involves dopaminergic pathways with hallmarks of increased alpha synuclein (ASNC), and phosphorylated tau (p-tau) in the cerebrospinal fluid (CSF) precipitating brain pathology. However, increased histaminergic nerve fibers in substantia nigra pars Compacta (SNpc), striatum (STr) and caudate putamen (CP) associated with upregulation of Histamine H3 receptors and downregulation of H4 receptors in human cases of PD is observed in postmortem cases. These findings indicate that modulation of histamine H3 and H4 receptors and/or histaminergic transmission may induce neuroprotection in PD induced brain pathology. In this review effects of a potent histaminergic H3 receptor inverse agonist BF-2549 or clobenpropit (CLBPT) partial histamine H4 agonist with H3 receptor antagonist, in association with monoclonal anti-histamine antibodies (AHmAb) in PD brain pathology is discussed based on our own observations. Our investigation shows that chronic administration of conventional or TiO2 nanowired BF 2649 (1mg/kg, i.p.) or CLBPT (1mg/kg, i.p.) once daily for 1 week together with nanowired delivery of HAmAb (25μL) significantly thwarted ASNC and p-tau levels in the SNpC and STr and reduced PD induced brain pathology. These observations are the first to show the involvement of histamine receptors in PD and opens new avenues for the development of novel drug strategies in clinical strategies for PD, not reported earlier.
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Affiliation(s)
- Aruna Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
| | - Dafin F Muresanu
- Department of Clinical Neurosciences, University of Medicine & Pharmacy, Cluj-Napoca, Romania; "RoNeuro" Institute for Neurological Research and Diagnostic, Cluj-Napoca, Romania
| | - Ranjana Patnaik
- Department of Biomaterials, School of Biomedical Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
| | - Preeti K Menon
- Department of Biochemistry and Biophysics, Stockholm University, Stockholm, Sweden
| | - Z Ryan Tian
- Department of Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, United States
| | - Seaab Sahib
- Department of Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, United States
| | - Rudy J Castellani
- Department of Pathology, University of Maryland, Baltimore, MD, United States
| | - Ala Nozari
- Anesthesiology & Intensive Care, Massachusetts General Hospital, Boston, MA, United States
| | - José Vicente Lafuente
- LaNCE, Department of Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain
| | - Anca D Buzoianu
- Department of Clinical Pharmacology and Toxicology, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Stephen D Skaper
- Anesthesiology & Intensive Care, Department of Pharmacology, University of Padua, Padova, Italy
| | - Igor Bryukhovetskiy
- Department of Fundamental Medicine, School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia; Laboratory of Pharmacology, National Scientific Center of Marine Biology, Far East Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Igor Manzhulo
- Laboratory of Pharmacology, National Scientific Center of Marine Biology, Far East Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Lars Wiklund
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| | - Hari Shanker Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
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Shan L, Fronczek R, Lammers GJ, Swaab DF. The tuberomamillary nucleus in neuropsychiatric disorders. HANDBOOK OF CLINICAL NEUROLOGY 2021; 180:389-400. [PMID: 34225943 DOI: 10.1016/b978-0-12-820107-7.00024-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The tuberomamillary nucleus (TMN) is located within the posterior part of the hypothalamus. The histamine neurons in it synthesize histamine by means of the key enzyme histidine decarboxylase (HDC) and from the TMN, innervate a large number of brain areas, such as the cerebral cortex, hippocampus, amygdala as well as the thalamus, hypothalamus, and basal ganglia. Brain histamine is reduced to an inactivated form, tele-methylhistamine (t-MeHA), by histamine N-methyltransferase (HMT). In total, there are four types of histamine receptors (H1-4Rs) in the brain, all of which are G-protein coupled. The histaminergic system controls several basal physiological functions, including the sleep-wake cycle, energy and endocrine homeostasis, sensory and motor functions, and cognitive functions such as attention, learning, and memory. Histaminergic dysfunction may contribute to clinical disorders such as Parkinson's disease, Alzheimer's disease, Huntington's disease, narcolepsy type 1, schizophrenia, Tourette syndrome, and autism spectrum disorder. In the current chapter, we focus on the role of the histaminergic system in these neurological/neuropsychiatric disorders. For each disorder, we first discuss human data, including genetic, postmortem brain, and cerebrospinal fluid studies. Then, we try to interpret the human changes by reviewing related animal studies and end by discussing, if present, recent progress in clinical studies on novel histamine-related therapeutic strategies.
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Affiliation(s)
- Ling Shan
- Department of Neurology, Leiden University Medical Centre, Leiden, The Netherlands; Sleep Wake Centre SEIN, Heemstede, The Netherlands; Department Neuropsychiatric Disorders, Netherlands Institute for Neuroscience, an Institute of the Royal Netherlands Academy of Arts and Sciences, Amsterdam, The Netherlands.
| | - Rolf Fronczek
- Department of Neurology, Leiden University Medical Centre, Leiden, The Netherlands; Sleep Wake Centre SEIN, Heemstede, The Netherlands
| | - Gert Jan Lammers
- Department of Neurology, Leiden University Medical Centre, Leiden, The Netherlands; Sleep Wake Centre SEIN, Heemstede, The Netherlands
| | - Dick F Swaab
- Department Neuropsychiatric Disorders, Netherlands Institute for Neuroscience, an Institute of the Royal Netherlands Academy of Arts and Sciences, Amsterdam, The Netherlands
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Germundson DL, Vendsel LP, Nagamoto-Combs K. Region-specific regulation of central histaminergic H3 receptor expression in a mouse model of cow's milk allergy. Brain Res 2020; 1749:147148. [PMID: 33035498 DOI: 10.1016/j.brainres.2020.147148] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 09/29/2020] [Accepted: 10/01/2020] [Indexed: 01/04/2023]
Abstract
Central histaminergic H3 receptor (H3R) has been extensively investigated as a potential therapeutic target for various neurological and neurodegenerative disorders. Despite promising results in preclinical rodent models, clinical trials have not provided conclusive evidence for the benefit of H3R antagonists to alleviate cognitive and behavioral symptoms of these disorders. Inconsistent pharmacological efficacies may arise from aberrant changes in H3R over time during disease development. Because H3R is involved in feedback inhibition of histamine synthesis and secretion, the expression of the autoreceptor may also be reciprocally regulated by altered histamine levels in a pathological condition. Thus, we investigated H3R expression in a mouse model of cow's milk allergy, a condition associated with increased histamine levels. Mice were sensitized to bovine whey proteins (WP) over 5 weeks and H3R protein and transcript levels were examined in the brain. Substantially increased H3R immunoreactivity was observed in various brain regions of WP-sensitized mice compared to sham mice. Elevated H3R expression was also found in the thalamic/hypothalamic region. The expression of histaminergic H1, but not H2, receptor subtype was also increased in this and the midbrain regions. Unlike the brain, all three histaminergic receptors were increased in the small intestine. These results indicated that the central histaminergic receptors were altered in WP-sensitized mice in a subtype- and region-specific manner, which likely contributed to behavioral changes we observed in these mice. Our study also suggests that altered levels of H3R could be considered during a pharmacological intervention of a neurological disease.
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Affiliation(s)
- Danielle L Germundson
- Department of Pathology, University of North Dakota School of Medicine and Health Sciences, 1301 N. Columbia Rd, Grand Forks, ND, United States
| | - Lane P Vendsel
- Department of Pathology, University of North Dakota School of Medicine and Health Sciences, 1301 N. Columbia Rd, Grand Forks, ND, United States
| | - Kumi Nagamoto-Combs
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, 1301 N. Columbia Rd, Grand Forks, ND, United States.
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Koski SK, Leino S, Panula P, Rannanpää S, Salminen O. Genetic lack of histamine upregulates dopamine neurotransmission and alters rotational behavior but not levodopa-induced dyskinesia in a mouse model of Parkinson's disease. Neurosci Lett 2020; 729:134932. [PMID: 32224226 DOI: 10.1016/j.neulet.2020.134932] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/04/2020] [Accepted: 03/23/2020] [Indexed: 11/19/2022]
Abstract
The brain histaminergic and dopaminergic systems closely interact, and some evidence also suggests significant involvement of histamine in Parkinson's disease (PD), where dopaminergic neurons degenerate. To further investigate histamine-dopamine interactions, particularly in the context of PD, a genetic lack of histamine and a mouse model of PD and levodopa-induced dyskinesia were here combined. Dopaminergic lesions were induced in histidine decarboxylase knockout and wildtype mice by 6-hydroxydopamine injections into the medial forebrain bundle. Post-lesion motor dysfunction was studied by measuring drug-induced rotational behavior and dyskinesia. Striatal tissue from both lesioned and naïve animals was used to investigate dopaminergic, serotonergic and histaminergic biomarkers. Histamine deficiency increased amphetamine-induced rotation but did not affect levodopa-induced dyskinesia. qPCR measurements revealed increased striatal expression of D1 and D2 receptor, DARPP-32, and H3 receptor mRNA, and synaptosomal release experiments in naïve mice indicated increased dopamine release. A lack of histamine thus causes pre- and postsynaptic upregulation of striatal dopaminergic neurotransmission which may be reflected in post-lesion motor behavior. Disturbances or manipulations of the histaminergic system may thus have significant consequences for dopaminergic neurotransmission and motor behavior in both healthy and disease conditions. The findings also represent new evidence for the complex interplay between dopamine and histamine within the nigrostriatal pathway.
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Affiliation(s)
- Sini K Koski
- Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Sakari Leino
- Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Pertti Panula
- Department of Anatomy and Neuroscience Center, University of Helsinki, Helsinki, Finland
| | - Saara Rannanpää
- Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Outi Salminen
- Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.
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6
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Sergeeva OA, Chepkova AN, Görg B, Rodrigues Almeida F, Bidmon HJ, Haas HL, Häussinger D. Histamine-induced plasticity and gene expression in corticostriatal pathway under hyperammonemia. CNS Neurosci Ther 2019; 26:355-366. [PMID: 31571389 PMCID: PMC7052803 DOI: 10.1111/cns.13223] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 08/10/2019] [Accepted: 09/04/2019] [Indexed: 01/13/2023] Open
Abstract
Aims Histamine H3 receptor (H3R) antagonists/inverse agonists increase vigilance. We studied brain histaminergic pathways under hyperammonemia and the transcriptome of receptors and their signaling cascades to provide a rationale for wake‐promoting therapies. Methods We analyzed histamine‐induced long‐lasting depression of corticostriatal synaptic transmission (LLDhist). As the expression of dopamine 1 receptors (D1R) is upregulated in LGS‐KO striatum where D1R‐H3R dimers may exist, we investigated actions of H3R and D1R agonists and antagonists. We analyzed transcription of selected genes in cortex and dorsal striatum in a mouse model of inborn hyperammonemia (liver‐specific glutamine synthetase knockout: LGS‐KO) and compared it with human hepatic encephalopathy. Results LGS‐KO mice showed significant reduction of the direct depression (DD) but not the long‐lasting depression (LLD) by histamine. Neither pharmacological activation nor inhibition of D1R significantly affected DDhist and LLDhist in WT striatum, while in LGS‐KO mice D1R activation suppressed LLDhist. Histaminergic signaling was found unchanged at the transcriptional level except for the H2R. A study of cAMP‐regulated genes indicated a significant reduction in the molecular signature of wakefulness in the diseased cortex. Conclusions Our findings provide a rationale for the development of aminergic wake‐promoting therapeutics in hyperammonemic disorders.
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Affiliation(s)
- Olga A Sergeeva
- Molecular Neurophysiology, Medical Faculty, Institute of Neural and Sensory Physiology, Heinrich-Heine University, Duesseldorf, Germany.,Medical Faculty, Institute of Clinical Neurosciences and Medical Psychology, Heinrich-Heine University, Duesseldorf, Germany
| | - Aisa N Chepkova
- Molecular Neurophysiology, Medical Faculty, Institute of Neural and Sensory Physiology, Heinrich-Heine University, Duesseldorf, Germany.,Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Duesseldorf, Germany
| | - Boris Görg
- Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Duesseldorf, Germany
| | - Filipe Rodrigues Almeida
- Medical Faculty, Institute of Clinical Neurosciences and Medical Psychology, Heinrich-Heine University, Duesseldorf, Germany
| | - Hans-Jürgen Bidmon
- Medical Faculty, C.&O. Vogt Institute for Brain Research, Heinrich-Heine University, Duesseldorf, Germany
| | - Helmut L Haas
- Molecular Neurophysiology, Medical Faculty, Institute of Neural and Sensory Physiology, Heinrich-Heine University, Duesseldorf, Germany
| | - Dieter Häussinger
- Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Duesseldorf, Germany
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Panula P. Histamine, histamine H 3 receptor, and alcohol use disorder. Br J Pharmacol 2019; 177:634-641. [PMID: 30801695 DOI: 10.1111/bph.14634] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 12/20/2018] [Accepted: 02/11/2019] [Indexed: 12/29/2022] Open
Abstract
Alcohol use disorder is associated with several mental, physical, and social problems. Its treatment is difficult and often requires a combination of pharmacological and behavioural therapy. The brain histaminergic system, one of the wake-active systems that controls whole-brain activity, operates through three neuronal GPCRs. The histamine H3 receptor (Hrh3), which is expressed in many brain areas involved in alcohol drinking and alcohol reward, can be targeted with a number of drugs developed initially for cognitive disorders and/or disorders related to sleep, wakefulness, and alertness. In all rodent alcohol drinking models tested so far, H3 receptor antagonists have reduced alcohol drinking and alcohol-induced place preference and cue-induced alcohol reinstatement. Several H3 receptor antagonists tested and found to be safe for humans could be subjected to clinical tests to treat alcohol use disorder. Preference should be given to short-acting drugs to avoid the sleep problems associated with the wake-maintaining effects of the drugs. LINKED ARTICLES: This article is part of a themed section on New Uses for 21st Century. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v177.3/issuetoc.
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Affiliation(s)
- Pertti Panula
- Department of Anatomy and Neuroscience Center, University of Helsinki, Helsinki, Finland
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He M, Zhang Q, Deng C, Jin T, Song X, Wang H, Huang XF. Time-dependent effects of olanzapine treatment on the expression of histidine decarboxylase, H1 and H3 receptor in the rat brain: The roles in olanzapine-induced obesity. Psychoneuroendocrinology 2017; 85:190-199. [PMID: 28886461 DOI: 10.1016/j.psyneuen.2017.08.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 07/24/2017] [Accepted: 08/18/2017] [Indexed: 12/28/2022]
Abstract
Antipsychotic treatment, particularly olanzapine and clozapine, induces severe obesity. The Histamine H1 receptor is considered to be an important contributor to olanzapine-induced obesity, however how olanzapine modulates the histaminergic system is not sufficiently understood. This study examined the effect of olanzapine on key molecules of the histaminergic system, including histidine decarboxylase (HDC), H1 receptor (H1R) and H3 receptor (H3R), in the brain at different stages of olanzapine-induced obesity. During short-term treatment (8-day), olanzapine increased hypothalamic HDC mRNA expression and H1R binding in the arcuate nucleus (Arc) and ventromedial hypothalamus (VMH), without changing H3R binding density. HDC mRNA and Arc H1R binding were positively correlated with increased food intake, feeding efficiency and weight gain. When the treatment was extended to 16 and 36 days, H1R binding was increased not only in the hypothalamic Arc and VMH but also in the brainstem dorsal vagal complex (DVC). The H1R bindings in the Arc, VMH and DVC were positively correlated with weight gain induced by olanzapine treatment. However, the expression of HDC and H3R mRNA was not increased. These results suggest that olanzapine time-dependently modulates histamine neurotransmission, which suggested the different neuronal mechanisms underlying different stages of weight gain development. Treatment targeting the H1R may be effective for both short- and long-term olanzapine-induced weight gain.
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Affiliation(s)
- Meng He
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, Hubei, China; Illawarra Health and Medical Research Institute and Centre for Translational Neuroscience, School of Medicine, University of Wollongong, NSW 2522, Australia
| | - Qingsheng Zhang
- Illawarra Health and Medical Research Institute and Centre for Translational Neuroscience, School of Medicine, University of Wollongong, NSW 2522, Australia
| | - Chao Deng
- Illawarra Health and Medical Research Institute and Centre for Translational Neuroscience, School of Medicine, University of Wollongong, NSW 2522, Australia
| | - Tiantian Jin
- Illawarra Health and Medical Research Institute and Centre for Translational Neuroscience, School of Medicine, University of Wollongong, NSW 2522, Australia
| | - Xueqin Song
- Department of Psychiatry, The First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Hongqing Wang
- Illawarra Health and Medical Research Institute and Centre for Translational Neuroscience, School of Medicine, University of Wollongong, NSW 2522, Australia
| | - Xu-Feng Huang
- Illawarra Health and Medical Research Institute and Centre for Translational Neuroscience, School of Medicine, University of Wollongong, NSW 2522, Australia; Department of Psychiatry, The First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China.
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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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10
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Ligand autoradiographical quantification of histamine H 3 receptor in human dementia with Lewy bodies. Pharmacol Res 2016; 113:245-256. [PMID: 27592250 PMCID: PMC5113906 DOI: 10.1016/j.phrs.2016.08.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 08/24/2016] [Accepted: 08/31/2016] [Indexed: 01/21/2023]
Abstract
Dementia with Lewy bodies (DLB) is a serious age-dependent human neurodegenerative disease, with multiple debilitating symptoms, including dementia, psychosis and significant motor deficits, but with little or no effective treatments. This comparative ligand autoradiographical study has quantified histamine H3 receptors (H3R) in a series of major cortical and basal ganglia structures in human DLB and Alzheimer’s (AD) post-mortem cases using the highly selective radioligand, [3H] GSK189254. In the main, the levels of H3 receptor were largely preserved in DLB cases when compared with aged-matched controls. However, we provide new evidence showing variable levels in the globus pallidus, and, moreover, raised levels of Pallidum H3 correlated with positive psychotic symptoms, in particular delusions and visual hallucinations, but not symptoms associated with depression. Furthermore, no correlation was detected for H3 receptor levels to MMSE or IUPRS symptom severity. This study suggests that H3R antagonists have scope for treating the psychotic symptomologies in DLB and other human brain disorders.
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Nieto-Alamilla G, Márquez-Gómez R, García-Gálvez AM, Morales-Figueroa GE, Arias-Montaño JA. The Histamine H3 Receptor: Structure, Pharmacology, and Function. Mol Pharmacol 2016; 90:649-673. [PMID: 27563055 DOI: 10.1124/mol.116.104752] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 08/24/2016] [Indexed: 01/06/2023] Open
Abstract
Among the four G protein-coupled receptors (H1-H4) identified as mediators of the biologic effects of histamine, the H3 receptor (H3R) is distinguished for its almost exclusive expression in the nervous system and the large variety of isoforms generated by alternative splicing of the corresponding mRNA. Additionally, it exhibits dual functionality as autoreceptor and heteroreceptor, and this enables H3Rs to modulate the histaminergic and other neurotransmitter systems. The cloning of the H3R cDNA in 1999 by Lovenberg et al. allowed for detailed studies of its molecular aspects. In this work, we review the characteristics of the H3R, namely, its structure, constitutive activity, isoforms, signal transduction pathways, regional differences in expression and localization, selective agonists, antagonists and inverse agonists, dimerization with other neurotransmitter receptors, and the main presynaptic and postsynaptic effects resulting from its activation. The H3R has attracted interest as a potential drug target for the treatment of several important neurologic and psychiatric disorders, such as Alzheimer and Parkinson diseases, Gilles de la Tourette syndrome, and addiction.
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Affiliation(s)
- Gustavo Nieto-Alamilla
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados (Cinvestav-IPN), Zacatenco, Ciudad de México, México
| | - Ricardo Márquez-Gómez
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados (Cinvestav-IPN), Zacatenco, Ciudad de México, México
| | - Ana-Maricela García-Gálvez
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados (Cinvestav-IPN), Zacatenco, Ciudad de México, México
| | - Guadalupe-Elide Morales-Figueroa
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados (Cinvestav-IPN), Zacatenco, Ciudad de México, México
| | - José-Antonio Arias-Montaño
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados (Cinvestav-IPN), Zacatenco, Ciudad de México, México
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Bolam JP, Ellender TJ. Histamine and the striatum. Neuropharmacology 2016; 106:74-84. [PMID: 26275849 PMCID: PMC4917894 DOI: 10.1016/j.neuropharm.2015.08.013] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 07/30/2015] [Accepted: 08/06/2015] [Indexed: 12/25/2022]
Abstract
The neuromodulator histamine is released throughout the brain during periods of wakefulness. Combined with an abundant expression of histamine receptors, this suggests potential widespread histaminergic control of neural circuit activity. However, the effect of histamine on many of these circuits is unknown. In this review we will discuss recent evidence for histaminergic modulation of the basal ganglia circuitry, and specifically its main input nucleus; the striatum. Furthermore, we will discuss recent findings of histaminergic dysfunction in several basal ganglia disorders, including in Parkinson's disease and most prominently, in Tourette's syndrome, which has led to a resurgence of interest in this neuromodulator. Combined, these recent observations not only suggest a central role for histamine in modulating basal ganglia activity and behaviour, but also as a possible target in treating basal ganglia disorders. This article is part of the Special Issue entitled 'Histamine Receptors'.
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Affiliation(s)
- J Paul Bolam
- Department of Pharmacology, MRC Brain Network Dynamics Unit, Mansfield Road, OX1 3TH Oxford, United Kingdom
| | - Tommas J Ellender
- Department of Pharmacology, MRC Brain Network Dynamics Unit, Mansfield Road, OX1 3TH Oxford, United Kingdom.
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Jiménez-Jiménez FJ, Alonso-Navarro H, García-Martín E, Agúndez JA. Thr105Ile (rs11558538) polymorphism in the histamine N-methyltransferase (HNMT) gene and risk for Parkinson disease: A PRISMA-compliant systematic review and meta-analysis. Medicine (Baltimore) 2016; 95:e4147. [PMID: 27399132 PMCID: PMC5058861 DOI: 10.1097/md.0000000000004147] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 04/14/2016] [Accepted: 06/13/2016] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND/AIMS Several neuropathological, biochemical, and pharmacological data suggested a possible role of histamine in the etiopathogenesis of Parkinson disease (PD). The single nucleotide polymorphism (SNP) rs11558538 in the histamine N-methyltransferase (HNMT) gene has been associated with the risk of developing PD by several studies but not by some others. We carried out a systematic review that included all the studies published on PD risk related to the rs11558538 SNP, and we conducted a meta-analysis following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. METHODS We used several databases to perform the systematic review, the software Meta-DiSc 1.1.1 to perform the meta-analysis of the eligible studies, and the Q-statistic to test heterogeneity between studies. RESULTS The meta-analysis included 4 eligible case-control association studies for the HNMT rs11558538 SNP and the risk for PD (2108 patients, 2158 controls). The frequency of the minor allele positivity showed a statistically significant association with a decreased risk for PD, both in the total series and in Caucasians. Although homozygosity for the minor allele did not reach statistical significance, the test for trend indicates the occurrence of a gene-dose effect. Global diagnostic odds ratios (95% confidence intervals) for rs11558538T were 0.61 (0.46-0.81) for the total group, and 0.63 (0.45-0.88) for Caucasian patients. CONCLUSION The present meta-analysis confirms published evidence suggesting that the HNMT rs11558538 minor allele is related to a reduced risk of developing PD.
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Affiliation(s)
- Félix Javier Jiménez-Jiménez
- Section of Neurology, Hospital Universitario del Sureste, Arganda del Rey
- Department of Medicine-Neurology, Hospital “Príncipe de Asturias,” Universidad de Alcalá, Alcalá de Henares, Madrid
| | | | | | - José A.G. Agúndez
- Department of Pharmacology, University of Extremadura, Cáceres, Spain
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Papathanou M, Jenner P, Iravani M, Jackson M, Stockwell K, Strang I, Zeng BY, McCreary AC, Rose S. The H3 receptor agonist immepip does not affect l-dopa-induced abnormal involuntary movements in 6-OHDA-lesioned rats. Eur J Pharmacol 2014; 741:304-10. [DOI: 10.1016/j.ejphar.2014.08.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 07/29/2014] [Accepted: 08/10/2014] [Indexed: 12/15/2022]
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Tighilet B, Mourre C, Lacour M. Plasticity of the histamine H3 receptors after acute vestibular lesion in the adult cat. Front Integr Neurosci 2014; 7:87. [PMID: 24427120 PMCID: PMC3879797 DOI: 10.3389/fnint.2013.00087] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Accepted: 11/16/2013] [Indexed: 11/13/2022] Open
Abstract
After unilateral vestibular neurectomy (UVN) many molecular and neurochemical mechanisms underlie the neurophysiological reorganizations occurring in the vestibular nuclei (VN) complex, as well as the behavioral recovery process. As a key regulator, the histaminergic system appears to be a likely candidate because drugs interfering with histamine (HA) neurotransmission facilitate behavioral recovery after vestibular lesion. This study aimed at analyzing the post-lesion changes of the histaminergic system by quantifying binding to histamine H3 receptors (H3R; mediating namely histamine autoinhibition) using a histamine H3 receptor agonist ([3H]N-α-methylhistamine). Experiments were done in brain sections of control cats (N = 6) and cats submitted to UVN and killed 1 (N = 6) or 3 (N = 6) weeks after the lesion. UVN induced a bilateral decrease in binding density of the agonist [3H]N-α-methylhistamine to H3R in the tuberomammillary nuclei (TMN) at 1 week post-lesion, with a predominant down-regulation in the ipsilateral TMN. The bilateral decrease remained at the 3 weeks survival time and became symmetric. Concerning brainstem structures, binding density in the VN, the prepositus hypoglossi, the subdivisions of the inferior olive decreased unilaterally on the ipsilateral side at 1 week and bilaterally 3 weeks after UVN. Similar changes were observed in the subdivisions of the solitary nucleus only 1 week after the lesion. These findings indicate vestibular lesion induces plasticity of the histamine H3R, which could contribute to vestibular function recovery.
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Affiliation(s)
- Brahim Tighilet
- Laboratoire de Neurosciences Intégratives et Adaptatives, UMR 7260, FR - Comportement, Cerveau, Cognition (Behavior, Brain, and Cognition), Centre Saint-Charles, Case B, Centre National de la Recherche Scientifique, Aix-Marseille Université Marseille, France
| | - Christiane Mourre
- Laboratoire de Neurosciences Cognitives, UMR 7291, Centre Saint-Charles, Centre National de la Recherche Scientifique, Aix-Marseille Université Marseille, France
| | - Michel Lacour
- Laboratoire de Neurosciences Intégratives et Adaptatives, UMR 7260, FR - Comportement, Cerveau, Cognition (Behavior, Brain, and Cognition), Centre Saint-Charles, Case B, Centre National de la Recherche Scientifique, Aix-Marseille Université Marseille, France
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The histaminergic network in the brain: basic organization and role in disease. Nat Rev Neurosci 2013; 14:472-87. [DOI: 10.1038/nrn3526] [Citation(s) in RCA: 225] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Gbahou F, Rouleau A, Arrang JM. The histamine autoreceptor is a short isoform of the H₃ receptor. Br J Pharmacol 2012; 166:1860-71. [PMID: 22356432 DOI: 10.1111/j.1476-5381.2012.01913.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
BACKGROUND AND PURPOSE The histamine H(3) receptor was identified as the autoreceptor of brain histaminergic neurons. After its cloning, functional H(3) receptor isoforms generated by a deletion in the third intracellular loop were found in the brain. Here, we determined if this autoreceptor was the long or the short isoform. EXPERIMENTAL APPROACH We hypothesized that the deletion would affect H(3) receptor stereoselectivity. The effects of the enantiomers of two chiral ligands, N(α)-methyl-α-chloromethylhistamine (N(α) Me-αClMeHA) and sopromidine, were investigated on cAMP formation at the H(3(445)) and H(3(413)) receptor isoforms, common to all species. They were further compared with their effects at autoreceptors. They were also compared on [(35)S]GTPγ[S] binding to membranes of rat cerebral cortex, striatum and hypothalamus, the richest area in autoreceptors. KEY RESULTS The stereoselectivity of N(α) Me-αClMeHA enantiomers as agonists was similar at the H(3(413)) receptor isoform and autoreceptors, but lower at the long isoform. While (S) sopromidine did not discriminate between the isoforms, (R) sopromidine was an antagonist at the H(3(413)) receptor isoform and autoreceptors, but a full agonist at the long isoform. In rat brain, stereoselectivity of N(α) Me-αClMeHA was higher in the hypothalamus than in cerebral cortex or striatum, whereas the opposite pattern was found for sopromidine. CONCLUSIONS AND IMPLICATIONS The pharmacological profiles of H(3) receptor isoforms differed markedly, showing that the function of autoreceptors was fulfilled by a short isoform, such as the H(3(413)) receptor. Development of drugs selectively targeting autoreceptors might enhance their therapeutic efficacy and/or decrease incidence of side effects.
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Affiliation(s)
- F Gbahou
- Laboratoire de Neurobiologie et Pharmacologie Moléculaire, Centre de Psychiatrie et Neurosciences (CPN, U 894), INSERM, Paris, France
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18
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Protective effects of histamine H3-receptor ligands in schizophrenic behaviors in experimental models. Pharmacol Rep 2012; 64:191-204. [DOI: 10.1016/s1734-1140(12)70746-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2010] [Revised: 08/31/2011] [Indexed: 11/24/2022]
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Shan L, Bossers K, Luchetti S, Balesar R, Lethbridge N, Chazot PL, Bao AM, Swaab DF. Alterations in the histaminergic system in the substantia nigra and striatum of Parkinson's patients: a postmortem study. Neurobiol Aging 2011; 33:1488.e1-13. [PMID: 22118942 DOI: 10.1016/j.neurobiolaging.2011.10.016] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 10/07/2011] [Accepted: 10/21/2011] [Indexed: 11/29/2022]
Abstract
Earlier studies showed neuronal histamine production in the hypothalamic tuberomamillary nucleus to be unchanged in Parkinson's disease (PD), whereas the histamine levels and innervation in the substantia nigra (SN) increased. In the present study we used quantitative polymerase chain reaction (qPCR) to assess the changes in the histaminergic system in the SN, caudate nucleus (CN), and putamen (PU) in 7 PD patients and 7 controls. The messenger RNA (mRNA) expression of the histamine receptor-3 (H(3)R), which was localized immunocytochemically in the large pigmented neurons, was significantly decreased in the SN in PD, while histamine receptor-4 (H(4)R)-mRNA expression showed a significant increase in caudate nucleus and PU. In addition, significantly increased mRNA levels of histamine methyltransferase (HMT), a key enzyme involved in histamine metabolism, were found in the SN and in the PU in PD. Moreover, in the SN, the histamine methyltransferase-mRNA showed a strong negative correlation with PD disease duration. Our observations imply the presence of local changes in the histaminergic system that may contribute to PD pathology, and may thus provide a rationale for possible novel therapeutic strategies.
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Affiliation(s)
- Ling Shan
- Department of Neurobiology, Key Laboratory of Medical Neurobiology of Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, Zhejiang University School of Medicine, Hangzhou, China
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20
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Hashemi P, Dankoski EC, Wood KM, Ambrose RE, Wightman RM. In vivo electrochemical evidence for simultaneous 5-HT and histamine release in the rat substantia nigra pars reticulata following medial forebrain bundle stimulation. J Neurochem 2011; 118:749-59. [PMID: 21682723 PMCID: PMC3155665 DOI: 10.1111/j.1471-4159.2011.07352.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Exploring the mechanisms of serotonin [5-hydroxytryptamine (5-HT)] in the brain requires an in vivo method that combines fast temporal resolution with chemical selectivity. Fast-scan cyclic voltammetry is a technique with sufficient temporal and chemical resolution for probing dynamic 5-HT neurotransmission events; however, traditionally it has not been possible to probe in vivo 5-HT mechanisms. Recently, we optimized fast-scan cyclic voltammetry for measuring 5-HT release and uptake in vivo in the substantia nigra pars reticulata (SNR) with electrical stimulation of the dorsal raphe nucleus (DRN) in the rat brain. Here, we address technical challenges associated with rat DRN surgery by electrically stimulating 5-HT projections in the medial forebrain bundle (MFB), a more accessible anatomical location. MFB stimulation elicits 5-HT in the SNR; furthermore, we find simultaneous release of an additional species. We use electrochemical and pharmacological methods and describe physiological, anatomical and independent chemical analyses to identify this species as histamine. We also show pharmacologically that increasing the lifetime of extracellular histamine significantly decreases 5-HT release, most likely because of increased activation of histamine H-3 receptors that inhibit 5-HT release. Despite this, under physiological conditions, we find by kinetic comparisons of DRN and MFB stimulations that the simultaneous release of histamine does not interfere with the quantitative 5-HT concentration profile. We therefore present a novel and robust electrical stimulation of the MFB that is technically less challenging than DRN stimulation to study 5-HT and histamine release in the SNR.
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Affiliation(s)
- Parastoo Hashemi
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, 27599
| | - Elyse C. Dankoski
- Curriculum in Neurobiology, University of North Carolina at Chapel Hill, Chapel Hill, 27599
| | - Kevin M. Wood
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, 27599
| | - R. Ellen Ambrose
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, 27599
| | - R. Mark Wightman
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, 27599
- Curriculum in Neurobiology, University of North Carolina at Chapel Hill, Chapel Hill, 27599
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Kitanaka J, Kitanaka N, Hall FS, Uhl GR, Tatsuta T, Morita Y, Tanaka KI, Nishiyama N, Takemura M. Histamine H3 receptor agonists decrease hypothalamic histamine levels and increase stereotypical biting in mice challenged with methamphetamine. Neurochem Res 2011; 36:1824-33. [PMID: 21573995 DOI: 10.1007/s11064-011-0500-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/07/2011] [Indexed: 10/18/2022]
Abstract
The effects of the histamine H(3) receptor agonists (R)-α-methylhistamine, imetit and immepip on methamphetamine (METH)-induced stereotypical behavior were examined in mice. The administration of METH (10 mg/kg, i.p.) to male ddY mice induced behaviors including persistent locomotion and stereotypical behaviors, which were classified into four categories: stereotypical head-bobbing (1.9%), circling (1.7%), sniffing (14.3%), and biting (82.1%). Pretreatment with (R)-α-methylhistamine (3 and 10 mg/kg, i.p.) significantly decreased stereotypical sniffing, but increased stereotypical biting induced by METH, in a dose-dependent manner. This effect of (R)-α-methylhistamine on behavior was mimicked by imetit or immepip (brain-penetrating selective histamine H(3) receptor agonists; 10 mg/kg, i.p. for each drug). Hypothalamic histamine levels 1 h after METH challenge were significantly increased in mice pretreated with saline. These increases in histamine levels were significantly decreased by pretreatment with histamine H(3) receptor agonists, effects which would appear to underlie the shift from METH-induced stereotypical sniffing to biting.
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Affiliation(s)
- Junichi Kitanaka
- Department of Pharmacology, Hyogo College of Medicine, Hyogo 663-8501, Japan.
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Panula P, Nuutinen S. Histamine and H3 receptor in alcohol-related behaviors. J Pharmacol Exp Ther 2010; 336:9-16. [PMID: 20864504 DOI: 10.1124/jpet.110.170928] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Data from rat models for alcohol preference and histidine decarboxylase knockout (HDC KO) mice suggest that brain histamine regulates alcohol-related behaviors. Histamine levels are higher in alcohol-preferring than in alcohol-nonpreferring rat brains, and expression of histamine H(3) receptor (H(3)R) is different in key areas for addictive behavior. H(3)R inverse agonists decrease alcohol responding in one alcohol-preferring rat line. Conditioned place preference induced by alcohol is stronger in HDC KO mice than in control mice. The HDC KO mice display a weaker stimulatory response to acute alcohol than the wild-type (WT) mice. In male inbred C57BL/6 mice the H(3)R antagonist ciproxifan inhibits ethanol-evoked stimulation of locomotor activity. Ciproxifan also potentiates the ethanol reward, but does not alone result in the development of place preference. At least in one rat model developed to study alcohol sensitivity high histamine levels are characteristic of the alcohol-insensitive rat line, and lowering brain histamine with a HDC inhibitor increases alcohol sensitivity in the tilting plane test. However, the motor skills of HDC KO mice do not seem to differ from those of the WT mice. Current evidence suggests that the histaminergic system is involved in the regulation of place preference behavior triggered by alcohol, possibly through an interaction with the mesolimbic dopamine system. Histamine may also interact with dopamine in the regulation of the cortico-striato-pallido-thalamo-cortical motor pathway and cerebellar mechanisms, which may be important in different motor behaviors beyond alcohol-induced motor disturbances. H(3)R ligands may have significant effects on alcohol addiction.
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Affiliation(s)
- Pertti Panula
- Neuroscience Center and Institute of Biomedicine/Anatomy, POB 63, FI-00014, University of Helsinki, Helsinki, Finland.
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A quantitative in situ hybridization protocol for formalin-fixed paraffin-embedded archival post-mortem human brain tissue. Methods 2010; 52:359-66. [PMID: 20621191 DOI: 10.1016/j.ymeth.2010.07.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2010] [Accepted: 07/04/2010] [Indexed: 11/23/2022] Open
Abstract
The use of radioactive in situ hybridization (ISH) to quantitatively determine low-to-moderate abundant mRNA expression in formalin-fixed, paraffin-embedded archival post-mortem human brain tissue is often limited by non-specific-deposits, visible as speckles. In the present study, optimal hybridization conditions were achieved for quantifying the mRNA expression of histidine decarboxylase (HDC) by a number of alterations in a routine protocol, which included (1) during purification of the oligo-probes, glycogen was omitted as a carrier for precipitation, (2) after precipitation, the labeled probe contained within the pellet was first dissolved in water instead of in hybridization buffer (HBF), (3) during hybridization, the dithiothreitol (DTT) concentration was increased from 200 to 800 mM in HBF, and (4) stringencies during hybridization and post-hybridization washes were increased by increasing the temperature. The effect of the adjustment was quantified on adjacent sections from 18 subjects (9 with Parkinson's disease and 9 controls), by comparing the data from the standard and new protocol. The results showed that the improved protocol brought about significantly clearer background with higher signal-to-noise ratios (p=0.001). We propose that this protocol is also applicable for detection of other lower-abundant genes in human brain tissue and probably in other tissues as well. In the present study, this is not only illustrated for HDC ISH, but also for corticotrophin-releasing hormone mRNA expression in the hypothalamic paraventricular nucleus.
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Blandina P, Munari L, Giannoni P, Mariottini C, Passani MB. Histamine neuronal system as a therapeutic target for the treatment of cognitive disorders. FUTURE NEUROLOGY 2010. [DOI: 10.2217/fnl.10.30] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Much has been learned over the past 20 years about the role of histamine as a neurotransmitter. This brief article attempts to evaluate the progress accomplished in this field, and discusses the therapeutic potential of the H3 receptor (H3R). All histaminergic neurons are localized in the tuberomammillary nucleus of the posterior hypothalamus and project to almost all regions of the CNS. Histamine exerts its effect via interaction with specific receptors (H1R, H2R, H3R and H4R). Antagonists of both H1R and H2R have been successful as blockbuster drugs for treating allergic conditions and gastric ulcers. H4R is still awaiting better functional characterization, but the H3R is an attractive target for potential therapies of CNS disorders. Indeed, considerable interest was raised by reports that pharmacological blockade of H3Rs exerted procognitive effects in a variety of animal tasks analyzing different types of memory. In addition, blockade of H3Rs increased wakefulness and reduced bodyweight in animal models. Such findings hint at the potential use of H3R antagonists/inverse agonists for the treatment of Alzheimer’s disease and other dementias, attention-deficit hyperactivity disorder, obesity and sleep disorders. As a result, an increasing number of H3R antagonists/inverse agonists progress through the clinic for the treatment of a variety of conditions, including attention-deficit hyperactivity disorder, cognitive disorders, narcolepsy and schizophrenia. Moreover, the use of H3R antagonists/inverse agonists that weaken traumatic memories may alleviate disorders such as post-traumatic stress syndrome, panic attacks, specific phobias and generalized anxiety. The use of H3R ligands for the treatment of neurodegenerative disorders is demonstrated in several studies, indicating a role of the histamine neurons and H3Rs in neuroprotection. Recently, direct evidence demonstrated that histaminergic neurons are organized into functionally distinct circuits, impinging on different brain regions, and displaying selective control mechanisms. This could imply independent functions of subsets of histaminergic neurons according to their respective origin and terminal projections. The possibility that H3Rs control only some of those functions implies that H3R-directed therapies may achieve selective effects, with minimal side effects, and this may increase the interest regarding this class of drugs.
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Affiliation(s)
| | - Leonardo Munari
- Dipartimento di Farmacologia Preclinica e Clinica, Universitá di Firenze, Italy
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Johnston TH, van der Meij A, Brotchie JM, Fox SH. Effect of histamine H2
receptor antagonism on levodopa-induced dyskinesia in the MPTP-macaque model of Parkinson's disease. Mov Disord 2010; 25:1379-90. [DOI: 10.1002/mds.23069] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Nuutinen S, Panula P. Histamine in neurotransmission and brain diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2010; 709:95-107. [PMID: 21618891 DOI: 10.1007/978-1-4419-8056-4_10] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Apart from its central role in the mediation of allergic reactions, gastric acid secretion and inflammation in the periphery, histamine serves an important function as a neurotransitter in the central nervous system. The histaminergic neurons originate from the tuberomamillary nucleus of the posterior hypothalamus and send projections to most parts of the brain. The central histamine system is involved in many brain functions such as arousal, control of pituitary hormone secretion, suppression ofeating and cognitive functions. The effects of neuronal histamine are mediated via G-protein-coupled H1-H4 receptors. The prominent role of histamine as a wake-promoting substance has drawn interest to treat sleep-wake disorders, especially narcolepsy, via modulation of H3 receptor function. Post mortem studies have revealed alterations in histaminergic system in neurological and psychiatric diseases. Brain histamine levels are decreased in Alzheimer's disease patients whereas abnormally high histamine concentrations are found in the brains of Parkinson's disease and schizophrenic patients. Low histamine levels are associated with convulsions and seizures. The release of histamine is altered in response to different types of brain injury: e.g. increased release of histamine in an ischemic brain trauma might have a role in the recovery from neuronal damage. Neuronal histamine is also involved in the pain perception. Drugs that increase brain and spinal histamine concentrations have antinociceptive properties. Histaminergic drugs, most importantly histamine H3 receptors ligands, have shown efficacy in many animal models of the above-mentioned disorders. Ongoing clinical trials will reveal the efficacy and safety of these drugs in the treatment of human patients.
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Affiliation(s)
- Saara Nuutinen
- Institute of Biomedicine, University of Helsinki, Helsinki, Finland
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Park HJ, Kim HJ, Park HK, Chung JH. Protective effect of histamine H2 receptor antagonist ranitidine against rotenone-induced apoptosis. Neurotoxicology 2009; 30:1114-9. [PMID: 19723537 DOI: 10.1016/j.neuro.2009.08.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Revised: 08/25/2009] [Accepted: 08/25/2009] [Indexed: 10/20/2022]
Abstract
Histamine H(2) receptor antagonists have been reported to improve the motor symptoms of Parkinson's disease (PD) patients and to exert neuroprotective effects. In this study, we investigated the protective effects of the H(2) receptor antagonist ranitidine on rotenone-induced apoptosis in human dopaminergic SH-SY5Y cells, focusing on mitogen-activated protein kinases (MAPKs) and caspases (CASPs)-mediated apoptotic events. Ranitidine blocked the rotenone-induced phosphorylation of c-Jun NH(2)-terminal protein kinase (JNK) and P38 MAPK (P38), and promoted the phosphorylation of extracellular signal-regulated protein kinase (ERK). Ranitidine also prevented the down-regulation of B-cell CLL/lymphoma 2 (BCL2) and the up-regulation of BCL2-associated X protein (BAX) by rotenone. Furthermore, ranitidine not only attenuated rotenone-induced cleavages of CASP9, poly(ADP-ribose) polymerase-1 (PARP) and CASP3, but also suppressed CASP3 enzyme activity. These results indicate that ranitidine protects against rotenone-induced apoptosis, inhibiting phosphorylation of JNK and P38, and activation of CASPs in human dopaminergic SH-SY5Y cells.
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Affiliation(s)
- Hae Jeong Park
- Department of Pharmacology, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
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Apomorphine-induced turning behavior in 6-hydroxydopamine lesioned rats is increased by histidine and decreased by histidine decarboxylase, histamine H1 and H2 receptor antagonists, and an H3 receptor agonist. Pharmacol Biochem Behav 2008; 90:325-30. [DOI: 10.1016/j.pbb.2008.03.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2008] [Accepted: 03/10/2008] [Indexed: 11/22/2022]
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Abstract
Histamine is a transmitter in the nervous system and a signaling molecule in the gut, the skin, and the immune system. Histaminergic neurons in mammalian brain are located exclusively in the tuberomamillary nucleus of the posterior hypothalamus and send their axons all over the central nervous system. Active solely during waking, they maintain wakefulness and attention. Three of the four known histamine receptors and binding to glutamate NMDA receptors serve multiple functions in the brain, particularly control of excitability and plasticity. H1 and H2 receptor-mediated actions are mostly excitatory; H3 receptors act as inhibitory auto- and heteroreceptors. Mutual interactions with other transmitter systems form a network that links basic homeostatic and higher brain functions, including sleep-wake regulation, circadian and feeding rhythms, immunity, learning, and memory in health and disease.
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Affiliation(s)
- Helmut L Haas
- Institute of Neurophysiology, Heinrich-Heine-University, Duesseldorf, Germany.
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Ferrada C, Ferré S, Casadó V, Cortés A, Justinova Z, Barnes C, Canela EI, Goldberg SR, Leurs R, Lluis C, Franco R. Interactions between histamine H3 and dopamine D2 receptors and the implications for striatal function. Neuropharmacology 2008; 55:190-7. [PMID: 18547596 DOI: 10.1016/j.neuropharm.2008.05.008] [Citation(s) in RCA: 134] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2007] [Revised: 05/07/2008] [Accepted: 05/12/2008] [Indexed: 11/30/2022]
Abstract
The striatum contains a high density of histamine H(3) receptors, but their role in striatal function is poorly understood. Previous studies have demonstrated antagonistic interactions between striatal H(3) and dopamine D(1) receptors at the biochemical level, while contradictory results have been reported about interactions between striatal H(3) and dopamine D(2) receptors. In this study, by using reserpinized mice, we demonstrate the existence of behaviorally significant antagonistic postsynaptic interactions between H(3) and D(1) and also between H(3) and dopamine D(2) receptors. The selective H(3) receptor agonist imetit inhibited, while the H(3) receptor antagonist thioperamide potentiated locomotor activation induced by either the D(1) receptor agonist SKF 38393 or the D(2) receptor agonist quinpirole. High scores of locomotor activity were obtained with H(3) receptor blockade plus D(1) and D(2) receptor co-activation, i.e., when thioperamide was co-administered with both SKF 38393 and quinpirole. Radioligand binding experiments in striatal membrane preparations showed the existence of a strong and selective H(3)-D(2) receptor interaction at the membrane level. In agonist/antagonist competition experiments, stimulation of H(3) receptors with several H(3) receptor agonists significantly decreased the affinity of D(2) receptors for the agonist. This kind of intramembrane receptor-receptor interactions are a common biochemical property of receptor heteromers. In fact, by using Bioluminescence Resonance Energy Transfer techniques in co-transfected HEK-293 cells, H(3) (but not H(4)) receptors were found to form heteromers with D(2) receptors. This study demonstrates an important role of postsynaptic H(3) receptors in the modulation of dopaminergic transmission by means of a negative modulation of D(2) receptor function.
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Affiliation(s)
- Carla Ferrada
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, University of Barcelona, 08028 Barcelona, Spain
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31
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Involvement of brain endogenous histamine in the degeneration of dopaminergic neurons in 6-hydroxydopamine-lesioned rats. Neuropharmacology 2007; 53:832-41. [PMID: 17919665 DOI: 10.1016/j.neuropharm.2007.08.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2006] [Revised: 06/15/2007] [Accepted: 08/11/2007] [Indexed: 12/31/2022]
Abstract
Previous studies have suggested that brain histamine is involved in the pathogenesis of Parkinson's disease (PD), but the role of endogenous histamine in the degeneration of dopaminergic neurons in the substantia nigra pars compact (SNpc) remains unclear. We aimed to investigate this issue by changing the brain histamine levels by giving histaminergic agents, and administrating histamine receptor antagonists in the PD animal model, i.e. the 6-hydroxydopamine (6-OHDA)-lesioned rat. In saline-treated animals, 6-OHDA infusion produced a progressive increase in apomorphine-induced turning rate and a loss of tyrosine hydroxylase immunoreactive (TH-ir) neurons in the SNpc. Histaminergic agents were given prior and daily for 1, 7 or 14 days after 6-OHDA infusion. Histidine (500 mg/kg, i.p.), a precursor of histamine, increased the turning rate (27% on day 7 and 26% on day 14, respectively; P<0.05) and also the loss of TH-ir neurons, but only on day 1 and 7 (67% vs 47% and 90.4% vs 74% loss, respectively; P<0.05). In contrast, alpha-fluoromethylhistidine (alpha-FMH, 25 microg, i.c.v.), an irreversible inhibitor of histidine decarboxylase (HDC), significantly decreased the turning rate (25% on day 7 and 26% on day 14, respectively; P<0.05) and prevented the loss of TH-ir neurons, also only on day 1 and day 7 (28% vs 47% and 58% vs 74% loss, respectively; P<0.05). In addition, the histamine H(1) receptor antagonist pyrilamine (5 microg, i.c.v.), but not the H(2) receptor antagonist cimetidine (5 microg, i.c.v.), also decreased the turning rate (38% on day 7 and 21% on day 14, respectively; P<0.05) and prevented the loss of TH-ir neurons on day 1 and day 7 (38% vs 51% and 60% vs 78% loss, respectively; P<0.05). On day 14 after 6-OHDA lesion, there were no significant differences in the number of TH-ir neurons among all the different treatment groups. Taken together, these findings indicate that endogenous histamine may accelerate the degeneration of dopaminergic neurons via its H(1) receptor, while attenuation of histamine transmission may play a protective role on it in the early stage of development of 6-OHDA lesioned PD rats.
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Mezzomo K, Cumming P, Minuzzi L. Comparison of the binding distribution of agonist and antagonist ligands for histamine H3 receptors in pig brain by quantitative autoradiography. Eur J Pharmacol 2007; 564:75-9. [PMID: 17350614 DOI: 10.1016/j.ejphar.2007.01.087] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2006] [Revised: 01/22/2007] [Accepted: 01/25/2007] [Indexed: 11/22/2022]
Abstract
The relationship between the abundances of agonist and antagonist-binding sites for monoamine receptors is poorly established. Therefore, we used quantitative autoradiography to investigate the distribution and concentration of binding sites for histamine H(3) receptor ligands in cryostat sections of pig brain. As in other species, binding of the histamine H(3) receptor agonist [(3)H]N(alpha)-methylhistamine was highly heterogeneous in the pig brain, with highest B(max) in the substantia nigra, followed by the nucleus accumbens and caudate, intermediate binding in frontal cortex, diencephalon, and mesencephalon, and absent specific binding in cerebellum: the affinity of [(3)H]N(alpha)-methylhistamine was close to 1 nM in all regions of pig brain. Thus, the saturation binding parameters for this H(3) receptor agonist in pig brain were similar to the earlier reports in rat, guinea pig, and human. The distribution of histamine H(3) receptors labeled with the receptor antagonist [(125)I]iodophenpropit in adjacent cryostat sections from the same group of pigs was very similar to that of [(3)H]N(alpha)-methylhistamine. However, the B(max) of the receptor antagonist was 40% higher in the basal ganglia than was the B(max) of the receptor agonist. The K(d) for the receptor antagonist ligand was close to 0.9 nM in all regions. These results suggest that histamine H(3) receptor agonist-binding sites, i.e. those linked to intracellular G-protein, comprise a subset of the total receptor antagonist-binding sites in the basal ganglia, as has been reported for dopamine D(2) receptors.
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Affiliation(s)
- Kelin Mezzomo
- Fundacao Faculdade Federal de Ciencias Medicas de Porto Alegre, Brazil
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Kholdebarin E, Caldwell DP, Blackwelder WP, Kao M, Christopher NC, Levin ED. Interaction of nicotinic and histamine H(3) systems in the radial-arm maze repeated acquisition task. Eur J Pharmacol 2007; 569:64-9. [PMID: 17544392 PMCID: PMC1994942 DOI: 10.1016/j.ejphar.2007.04.051] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2006] [Revised: 04/19/2007] [Accepted: 04/25/2007] [Indexed: 11/22/2022]
Abstract
Nicotinic systems have been found in a variety of studies to play important roles in cognitive function. Nicotinic involvement in different aspects of cognitive function such as learning vs. memory may differ. We have found in rats that the spatial repeated acquisition task in the radial-arm maze is significantly improved by low doses of the nicotinic receptor antagonist mecamylamine, the atypical nicotinic receptor ligand lobeline, as well as the alpha7 nicotinic receptor agonist ARR-17779. Interestingly, nicotine in the same dose range that improves working memory in the win-shift radial maze task was not effective in improving repeated acquisition performance. Nicotinic systems interact with a variety of other neural systems. Differential involvement of these extended effects with learning vs. memory may help explain differential effects of nicotinic drugs with these cognitive functions. Histamine H(3) receptor antagonists have been shown by some studies to improve cognitive function, but others have not found this effect and some have found impairment. Nicotine stimulates the release of histamine. This effect may counter other cascading effects of nicotine in the performance of learning and memory tasks. A specific test of this hypothesis involves our study of nicotine (0.1-0.4 mg/kg) interactions with the histamine H(3) receptor antagonist thioperamide (2.5-10 mg/kg) on learning memory in the repeated acquisition test in the radial-arm maze. The highest dose of thioperamide tested caused a significant choice accuracy impairment, which was most evident during the later portions of the learning curve. The highest dose of nicotine did not change overall errors but did cause a significant impairment in learning over trials. The choice accuracy impairment induced by thioperamide was significantly attenuated by nicotine (0.4 mg/kg). The learning impairment caused by the highest dose of nicotine was significantly attenuated by thioperamide. Thioperamide also caused a slowing of response, an effect, which was attenuated by nicotine co-administration. The repeated acquisition test can help differentiate acute drug effects on learning. Nicotine and thioperamide effectively reversed each other's choice accuracy impairment even though each by itself impaired accuracy.
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Affiliation(s)
- Ehsan Kholdebarin
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC 27710, USA
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Humbert-Claude M, Morisset S, Gbahou F, Arrang JM. Histamine H3 and dopamine D2 receptor-mediated [35S]GTPgamma[S] binding in rat striatum: evidence for additive effects but lack of interactions. Biochem Pharmacol 2007; 73:1172-81. [PMID: 17306767 DOI: 10.1016/j.bcp.2007.01.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2006] [Revised: 12/19/2006] [Accepted: 01/03/2007] [Indexed: 11/28/2022]
Abstract
The interactions in the rat striatum between H(3) receptors (H(3)Rs) and D(2) receptors (D(2)Rs) were investigated with the [(35)S]GTPgamma[S] binding assay. The H(3)R agonist (R)alpha-methylhistamine increased [(35)S]GTPgamma[S] binding to striatal membranes with an EC(50)=14+/-5 nM and a maximal effect of +19+/-1%. This effect was inhibited by the H(3)R antagonist ciproxifan with a K(i)=1.0+/-0.3 nM. The D(2)R agonist quinpirole increased [(35)S]GTPgamma[S] binding to the same membranes with an EC(50)=1.5+/-0.5 microM and a maximal effect of +28+/-2%. Its effect was blocked by haloperidol with a K(i)=0.3+/-0.1 nM. The maximal effects of the H(3)R and D(2)R agonists were additive (+46+/-3%). However, D(2)R ligands did not modify the effects of H(3)R ligands and vice versa. Ciproxifan behaved as an H(3)R inverse agonist and decreased [(35)S]GTPgamma[S] binding. Haloperidol had no effect and did not change the inverse agonist effect of ciproxifan. Administrations for 10 days of ciproxifan (1.5mg/kg/day) or haloperidol (0.5mg/kg/day) did not change the effects of quinpirole and (R)alpha-methylhistamine, respectively. These data suggest that striatal H(3)Rs and D(2)Rs do not interact through their coupling to G-proteins. However, a hyperactivity of histaminergic and dopaminergic neurons being observed in schizophrenia, the additive activations of H(3)Rs and D(2)Rs suggest that they cooperate to generate some schizophrenic symptoms. Such a postsynaptic mechanism may underlie the antipsychotic-like effects of H(3)R inverse agonists and supports their therapeutic interest, alone or as adjunctive treatment with neuroleptics.
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Affiliation(s)
- Marie Humbert-Claude
- INSERM, Unité de Neurobiologie et Pharmacologie Moléculaire (U573), Centre Paul Broca, 75014 Paris, France
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35
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Abstract
With the availability of an increased number of experimental tools, for example potent and brain-penetrating H1-, H2-, and H3-receptor ligands and mutant mice lacking the histamine synthesis enzyme or the histamine receptors, the functional roles of histaminergic neurons in the brain have been considerably clarified during the recent years, particularly their major role in the control of arousal, cognition, and energy balance. Various approaches tend to establish the implication of histaminergic neurons in schizophrenia. A strong hyperactivity of histamine neurons is induced in rodent brain by administration of methamphetamine or NMDA-receptor antagonists. Histamine neuron activity is modulated by typical and atypical neuroleptics. H3-receptor antagonists/inverse agonists display antipsychotic-like properties in animal models of the disease. Because of the limited predictability value of most animal models and the paucity of drugs affecting histaminergic transmission that were tried so far in human, the evidence remains therefore largely indirect, but supports a role of histamine neurons in schizophrenia.
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Affiliation(s)
- Jean-Michel Arrang
- INSERM, U573, Unité de Neurobiologie et Pharmacologie Moléculaire, Centre Paul Broca, 2 ter rue d'Alésia, 75014 Paris, France
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Affiliation(s)
- Patrizio Blandina
- Dipartimento di Farmacologia Preclinica e Clinica, Università di Firenze, Italy.
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Nowak P, Dabrowska J, Bortel A, Biedka I, Szczerbak G, Słomian G, Kostrzewa RM, Brus R. Histamine H3 receptor agonist- and antagonist-evoked vacuous chewing movements in 6-OHDA-lesioned rats occurs in an absence of change in microdialysate dopamine levels. Eur J Pharmacol 2006; 552:46-54. [PMID: 17055481 DOI: 10.1016/j.ejphar.2006.08.092] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2006] [Revised: 07/20/2006] [Accepted: 08/04/2006] [Indexed: 10/24/2022]
Abstract
In rats lesioned neonatally with 6-hydroxydopamine (6-OHDA), repeated treatment with SKF 38393 (1-phenyl-2,3,4,5-tetrahydro-(1H)-3-benzazepine-7,8-diol), a dopamine D(1)/D(5) receptor agonist, produces robust stereotyped and locomotor activities. The gradual induction of dopamine D(1) receptor supersensitivity is known as a priming phenomenon, and this process is thought to underlie not only the appearance of vacuous chewing movements in humans with tardive dyskinesia, but also the onset of motor dyskinesias in L-dihydroxyphenylalanine (L-DOPA)-treated Parkinson's disease patients. The object of the present study was to determine the possible influence of the histaminergic system on dopamine D(1) agonist-induced activities. We found that neither imetit (5.0 mg/kg i.p.), a histamine H(3) receptor agonist, nor thioperamide (5.0 mg/kg i.p.), a histamine H(3) receptor antagonist/inverse agonist, altered the numbers of vacuous chewing movements in non-primed-lesioned rats. However, in dopamine D(1) agonist-primed rats, thioperamide alone produced a vacuous chewing movements response (i.e., P < 0.05 vs SKF 38393, 1.0 mg/kg i.p.), but did not modify the SKF 38393 effect. Notably, both imetit and thioperamide-induced catalepsy in both non-primed and primed 6-OHDA-lesioned rats, comparable in magnitude to the effect of the dopamine D(1)/D(5) receptor antagonist SCH 23390 (7-chloro-8-hydroxy-3-methyl-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine; 0.5 mg/kg i.p.). Furthermore, in primed animals both imetit and thioperamide intensified SCH 23390-evoked catalepsy. In vivo microdialysis established that neither imetit nor thioperamide altered extraneuronal levels of dopamine and its metabolites in the striatum of 6-OHDA-lesioned rats. On the basis of the present study, we believe that histaminergic systems may augment dyskinesias induced by dopamine receptor agonists, independent of direct actions on dopaminergic neurons.
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Affiliation(s)
- Przemysław Nowak
- Department of Pharmacology, Medical University of Silesia, H. Jordana 38, 41-808 Zabrze, Poland.
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Panula P, Sallinen V, Sundvik M, Kolehmainen J, Torkko V, Tiittula A, Moshnyakov M, Podlasz P. Modulatory Neurotransmitter Systems and Behavior: Towards Zebrafish Models of Neurodegenerative Diseases. Zebrafish 2006; 3:235-47. [DOI: 10.1089/zeb.2006.3.235] [Citation(s) in RCA: 199] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Pertti Panula
- Neuroscience Center, Institute of Biomedicine/Anatomy, University of Helsinki, Helsinki, Finland
| | - Ville Sallinen
- Neuroscience Center, Institute of Biomedicine/Anatomy, University of Helsinki, Helsinki, Finland
| | - Maria Sundvik
- Neuroscience Center, Institute of Biomedicine/Anatomy, University of Helsinki, Helsinki, Finland
| | - Juha Kolehmainen
- Neuroscience Center, Institute of Biomedicine/Anatomy, University of Helsinki, Helsinki, Finland
| | - Veera Torkko
- Neuroscience Center, Institute of Biomedicine/Anatomy, University of Helsinki, Helsinki, Finland
| | - Anu Tiittula
- Neuroscience Center, Institute of Biomedicine/Anatomy, University of Helsinki, Helsinki, Finland
| | - Maxim Moshnyakov
- Neuroscience Center, Institute of Biomedicine/Anatomy, University of Helsinki, Helsinki, Finland
| | - Piotr Podlasz
- Neuroscience Center, Institute of Biomedicine/Anatomy, University of Helsinki, Helsinki, Finland
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Gomez-Ramirez J, Johnston TH, Visanji NP, Fox SH, Brotchie JM. Histamine H3 receptor agonists reduce L-dopa-induced chorea, but not dystonia, in the MPTP-lesioned nonhuman primate model of Parkinson's disease. Mov Disord 2006; 21:839-46. [PMID: 16532454 DOI: 10.1002/mds.20828] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
L-dopa-induced dyskinesia (LID) remains a major complication of the treatment of Parkinson's disease. The neural mechanisms underlying LID are thought to involve overactivity of striatal glutamatergic neurotransmission, with resultant underactivation of the output regions of the basal ganglia. Histamine H3 heteroreceptors can reduce glutamate and gamma-aminobutyric acid (GABA) transmission in the striatum and substantia nigra reticulata, respectively. Thus, we tested whether the histamine H3 receptor agonists immepip and imetit can alleviate LID in the MPTP-lesioned marmoset model of Parkinson's disease. Coadministration of immepip (1 mg/kg) with L-dopa (15 mg/kg) was associated with significantly less total dyskinesia than L-dopa alone. When dyskinesia was separately rated as chorea and dystonia, coadministration of L-dopa with either immepip or imetit (both 10 mg/kg) significantly reduced chorea but had no effect on dystonia. The antidyskinetic actions of the H3 agonists were not accompanied by alteration of the antiparkinsonian actions of L-dopa. However, immepip (10 mg/kg), when administered as monotherapy, significantly increased parkinsonian disability compared to vehicle. Overall, the results obtained in this study suggest that histamine H3 receptors may be involved in the neural mechanisms underlying L-dopa-induced dyskinesia in Parkinson's disease.
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Affiliation(s)
- Jordi Gomez-Ramirez
- Toronto Western Research Institute, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
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Lozada A, Munyao N, Sallmen T, Lintunen M, Leurs R, Lindsberg PJ, Panula P. Postischemic regulation of central histamine receptors. Neuroscience 2005; 136:371-9. [PMID: 16181737 DOI: 10.1016/j.neuroscience.2005.06.079] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2004] [Revised: 05/26/2005] [Accepted: 06/15/2005] [Indexed: 10/25/2022]
Abstract
This study characterizes changes occurring in the central histaminergic system associated with ischemia-reperfusion pathology in the rat. Specifically, after a postocclusion time period of 48 h, we have analyzed histamine H(1) receptor mRNA expression, histamine H(2) receptor protein amount and binding densities, and histamine H(3) receptor mRNA expression and binding densities in brain regions that have been suggested to be selectively vulnerable to transient global ischemia, i.e. hippocampus, thalamus, caudate-putamen, and cerebral cortex. We found an increase in H(1) receptor mRNA expression in the caudate-putamen: given that ischemia reduces glucose uptake and H(1) receptor activation has been shown to decrease this effect, an increase of expression levels may result in mitigating tissue damage due to energy failure observed in ischemia. A decrease in H(2) receptor binding densities in the caudate-putamen was also observed; the ischemia-induced decrease in H(2) receptor protein was also detectable by Western blot analysis. This phenomenon may underlie the previously reported ischemia induced striatal dopamine release. H(3) receptor mRNA expression was increased in the caudate putamen of the postischemic brain but was decreased in the globus pallidus and the thalamus; in association with this, H(3) receptor binding densities were increased in the cortex, caudate-putamen, globus pallidus, and hippocampus. The upregulation of H(3) receptor ligand binding may be involved in the previously reported continuous neuronal histamine release. Our data suggest that central histamine receptor expression and ligand binding are altered in brain ischemia in distinct areas, and may participate in neuroprotection and/or ischemia-associated neuronal damage.
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Affiliation(s)
- A Lozada
- Department of Biology, Abo Akademi University, Biocity, Artillerigatan 6A, FIN-20520 Turku, Finland
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Passani MB, Lin JS, Hancock A, Crochet S, Blandina P. The histamine H3 receptor as a novel therapeutic target for cognitive and sleep disorders. Trends Pharmacol Sci 2004; 25:618-25. [PMID: 15530639 DOI: 10.1016/j.tips.2004.10.003] [Citation(s) in RCA: 172] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Histamine H3 receptor pharmacology, functions and biochemistry are far from being fully understood; however, progress is being made. Activation of this Gi/GO-protein-coupled receptor affects cognition, the sleep-wake cycle, obesity and epilepsy, which are physiological and pathological conditions that are the main focus of research into the therapeutic potential of selective H3 receptor ligands. This heterogeneity of targets can be reconciled partially by the fact that the histamine system constitutes one of the most important brain-activating systems and that H3 receptors regulate the activity of histamine and other neurotransmitter systems. Furthermore, the H3 receptor shows functional constitutive activity, polymorphisms in humans and rodents with a differential distribution of splice variants in the CNS, and potential coupling to different intracellular signal transduction mechanisms. In light of the genetic, pharmacological and functional complexity of the H3 receptor, the importance of the histamine system as a therapeutic target to control the sleep-wake cycle and cognitive disorders will be discussed.
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Affiliation(s)
- Maria Beatrice Passani
- Dipartimento di Farmacologia Preclinica e Clinica, Universitá di Firenze, Viale Pieraccini 6, 50139 Firenze, Italy
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Threlfell S, Cragg SJ, Kalló I, Turi GF, Coen CW, Greenfield SA. Histamine H3 receptors inhibit serotonin release in substantia nigra pars reticulata. J Neurosci 2004; 24:8704-10. [PMID: 15470136 PMCID: PMC6729965 DOI: 10.1523/jneurosci.2690-04.2004] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2004] [Revised: 08/18/2004] [Accepted: 08/20/2004] [Indexed: 11/21/2022] Open
Abstract
The substantia nigra pars reticulata (SNr) plays a key role in basal ganglia function. Projections from multiple basal ganglia nuclei converge at the SNr to regulate nigrothalamic output. The SNr is also characterized by abundant aminergic input, including dopaminergic dendrites and axons containing 5-hydroxytryptamine (5-HT) or histamine (HA). The functions of HA in the SNr include motor control via HA H3 receptors (H3Rs), although the mechanism remains far from elucidated. In Parkinson's disease, there is an increase in H3Rs and the density of HA-immunoreactive axons in the SN. We explored the role of H3Rs in the regulation of 5-HT release in SNr using fast-scan cyclic voltammetry at carbon-fiber microelectrodes in rat midbrain slices. Immunohistochemistry identified a similar distribution for histaminergic and serotonergic processes in the SNr: immunoreactive varicosities were observed in the vicinity of dopaminergic dendrites. Electrically evoked 5-HT release was dependent on extracellular Ca2+ and prevented by NaV+-channel blockade. Extracellular 5-HT concentration was enhanced by inhibition of uptake transporters for 5-HT but not dopamine. Selective H3R agonists (R)-(-)-alpha-methyl-histamine or immepip inhibited evoked 5-HT release by up to 60%. This inhibition was prevented by the H3R antagonist thioperamide but not by the 5-HT1B receptor antagonist isamoltane. H3R inhibition of 5-HT release prevailed in the presence of GABA or glutamate receptor antagonists (ionotropic and metabotropic), suggesting minimal involvement of GABA or glutamate synapses. The potent regulation of 5-HT by H3Rs reported here not only elucidates HA function in the SNr but also raises the possibility of novel targets for basal ganglia therapies.
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Affiliation(s)
- Sarah Threlfell
- Department of Pharmacology, University of Oxford, Oxford OX1 3QT, United Kingdom
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García-Ramírez M, Aceves J, Arias-Montaño JA. Intranigral injection of the H3 agonist immepip and systemic apomorphine elicit ipsilateral turning behaviour in naive rats, but reduce contralateral turning in hemiparkinsonian rats. Behav Brain Res 2004; 154:409-15. [PMID: 15313028 DOI: 10.1016/j.bbr.2004.03.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2003] [Revised: 03/09/2004] [Accepted: 03/09/2004] [Indexed: 11/30/2022]
Abstract
There is evidence that histamine H3 receptors co-localise with dopamine D1 receptors on the terminals of striato-nigral neurones. In this work we studied the effect of the local activation of H3 receptors present in substantia nigra pars reticulata (SNr) on turning behaviour following apomorphine administration to either naive or hemiparkinsonian rats. In naive rats the intranigral (SNr) injection of the H3 receptor agonist immepip (3.2 or 32 ng/1 microl) resulted in ipsilateral turning following systemic apomorphine (0.5 mg/kg, subcutaneous). The effect of immepip was related to the dose and prevented by the H3 antagonist thioperamide (5 mg/kg, intraperitoneal). Conversely, in rats with 6-hydroxydopamine (6-OHDA) lesions to either substantia nigra pars compacta or the medial forebrain bundle (mfb), apomorphine-induced contralateral turning was reduced by intranigral immepip, an effect prevented by systemic thioperamide. Our data show that H3 receptors present in SNr regulate the synaptic output of the basal ganglia, most likely by reducing GABA release from striato-nigral terminals. These results may be relevant for the understanding of the role of histamine and H3 receptors in the control of motor behaviour both in normal and pathophysiological conditions, such as Parkinson's disease in which histaminergic innervation and histamine levels in substantia nigra have been shown to increase.
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Affiliation(s)
- Martha García-Ramírez
- Departamento de Fisiología, Escuela Nacional de Ciencias Biológicas, IPN, Plan de Ayala y Carpio s/n, Mexico, D.F., Mexico
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Blandina P, Efoudebe M, Cenni G, Mannaioni P, Passani MB. Acetylcholine, Histamine, and Cognition: Two Sides of the Same Coin. Learn Mem 2004; 11:1-8. [PMID: 14747511 DOI: 10.1101/lm.68004] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Patrizio Blandina
- Dipartimento di Farmacologia Preclinica e Clinica, V.le G. Pieraccini 6, Universitá di Firenze, 50139 Firenze, Italy.
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Sallmen T, Lozada AF, Anichtchik OV, Beckman AL, Leurs R, Panula P. Changes in hippocampal histamine receptors across the hibernation cycle in ground squirrels. Hippocampus 2003; 13:745-54. [PMID: 12962318 DOI: 10.1002/hipo.10120] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Hibernation is a physiological state characterized by a dramatic reduction in various functions, such as body temperature, heart rate, and metabolism. The hippocampus is thought to be important for regulation of the hibernation bout because it remains electrophysiologically active throughout this extremely depressed state. The question arises as to what neuronal influences act within the hippocampus during hibernation to sustain its activity. We hypothesized that histaminergic input might be an important contributor. Brain histamine is involved in functions relevant to hibernation, such as the regulation of diurnal rhythms, body temperature, and energy metabolism. Furthermore, we have previously shown that the histaminergic system appears to be activated during the hibernating state. In this study, we used receptor binding autoradiography, in situ hybridization, and GTP-gamma-S binding autoradiography to study changes in histamine receptors across the hibernation bout. We were able to demonstrate an increase in histamine H1 and H2 receptors in the hippocampus during hibernation, whereas the mRNA expression and receptor density of the inhibitory H3 receptor decreased. Histamine H3 receptors were shown to exhibit both histamine-activated and constitutive GTP-gamma-S-binding activity in the ground squirrel hippocampus, both of which decreased during hibernation, indicating a decrease in H3 receptor G-protein activation. Taken together, our results indicate that histamine may be involved in maintaining hibernation by sustaining hippocampal activity, possibly through H1 and H2 receptor activity and decreased inhibition by H3 receptors. The involvement of brain histamine, which is generally thought of as an arousal molecule, in maintaining a depressed state of the brain suggests a more general role for the amine in controlling arousal state.
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MESH Headings
- Afferent Pathways/cytology
- Afferent Pathways/metabolism
- Animals
- Arousal/physiology
- Binding, Competitive/physiology
- Down-Regulation/physiology
- Female
- GTP-Binding Proteins/metabolism
- Guanosine 5'-O-(3-Thiotriphosphate)
- Hibernation/physiology
- Hippocampus/cytology
- Hippocampus/metabolism
- Histamine/metabolism
- Neurons/cytology
- Neurons/metabolism
- RNA, Messenger/metabolism
- Receptors, Histamine/genetics
- Receptors, Histamine/metabolism
- Receptors, Histamine H1/genetics
- Receptors, Histamine H1/metabolism
- Receptors, Histamine H2/genetics
- Receptors, Histamine H2/metabolism
- Receptors, Histamine H3/genetics
- Receptors, Histamine H3/metabolism
- Sciuridae/anatomy & histology
- Sciuridae/physiology
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Affiliation(s)
- Tina Sallmen
- Department of Biology, Abo Akademi University, Turku, Finland
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Sallmen T, Lozada AF, Anichtchik OV, Beckman AL, Panula P. Increased brain histamine H3 receptor expression during hibernation in golden-mantled ground squirrels. BMC Neurosci 2003; 4:24. [PMID: 14505495 PMCID: PMC212552 DOI: 10.1186/1471-2202-4-24] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2003] [Accepted: 09/24/2003] [Indexed: 12/02/2022] Open
Abstract
Background Hibernation is a state of extremely reduced physiological functions and a deep depression of CNS activity. We have previously shown that the histamine levels increase in the brain during hibernation, as does the ratio between histamine and its first metabolite, suggesting increased histamine turnover during this state. The inhibitory histamine H3 receptor has both auto- and heteroreceptor function, rendering it the most likely histamine receptor to be involved in regulating the activity of histamine as well as other neurotransmitters during hibernation. In view of accumulating evidence that there is a global depression of transcription and translation during hibernation, of all but a few proteins that are important for this physiological condition, we reasoned that an increase in histamine H3 receptor expression would clearly indicate an important hibernation-related function for the receptor. Results In this study we show, using in situ hybridization, that histamine H3 receptor mRNA increases in the cortex, caudate nucleus and putamen during hibernation, an increase that is accompanied by elevated receptor binding in the cerebral cortex, globus pallidus and substantia nigra. These results indicate that there is a hibernation-related increase in H3 receptor expression in cortical neurons and in striatopallidal and striatonigral GABAergic neurons. GTP-γ-S binding autoradiography shows that the H3 receptors in the globus pallidus and substantia nigra can be stimulated by histamine throughout the hibernation cycle, suggesting that they are functionally active during hibernation. Conclusions These results show that the histamine H3 receptor gene is one of the few with a transcript that increases during hibernation, indicating an important role for the receptor in regulating this state. Moreover, the receptor is functionally active in the basal ganglia, suggesting a function for it in regulating e.g. dopaminergic transmission during hibernation.
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Affiliation(s)
- Tina Sallmen
- Department of Biology, Abo Akademi University, Åbo/Turku, Finland
| | - Adrian F Lozada
- Department of Biology, Abo Akademi University, Åbo/Turku, Finland
| | - Oleg V Anichtchik
- Department of Biology, Abo Akademi University, Åbo/Turku, Finland
- Institute for Biomedicine/Anatomy, University of Helsinki, Helsinki, Finland
| | - Alexander L Beckman
- Department of Psychology, California State University, Long Beach, California
| | - Pertti Panula
- Department of Biology, Abo Akademi University, Åbo/Turku, Finland
- Institute for Biomedicine/Anatomy, University of Helsinki, Helsinki, Finland
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Haas H, Panula P. The role of histamine and the tuberomamillary nucleus in the nervous system. Nat Rev Neurosci 2003; 4:121-30. [PMID: 12563283 DOI: 10.1038/nrn1034] [Citation(s) in RCA: 625] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Helmut Haas
- Department of Neurophysiology, Heinrich-Heine University, Dusseldorf, Germany.
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Pillot C, Héron A, Schwartz JC, Arrang JM. Ciproxifan, a histamine H3-receptor antagonist/inverse agonist, modulates the effects of methamphetamine on neuropeptide mRNA expression in rat striatum. Eur J Neurosci 2003; 17:307-14. [PMID: 12542667 DOI: 10.1046/j.1460-9568.2003.02422.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We have explored the effect of histamine H3-receptor ligands on the regulation of neuropeptide mRNA expression in the striatum by using in situ hybridization performed with proenkephalin, prodynorphin, substance P and proneurotensin riboprobes. Acute administration of ciproxifan, an H3-receptor antagonist/inverse agonist, or (R)-alpha-methylhistamine, an H3-receptor agonist, did not modify the striatal expression of the neuropeptides by itself. However, ciproxifan strongly and differentially modulated the effect of a single administration of 3 mg/kg methamphetamine on neuropeptide mRNA expression. This modulation was suppressed by the administration of (R)-alpha-methylhistamine and occurred in both the caudate-putamen and nucleus accumbens. Ciproxifan strongly potentiated the decrease of proenkephalin mRNA expression induced by methamphetamine. In contrast, it suppressed the increase in prodynorphin and substance P mRNA expression induced by methamphetamine. Methamphetamine alone or with ciproxifan did not modify proneurotensin mRNA expression. These neurochemical findings indicate that ciproxifan differentially regulates the effect of methamphetamine on the neuropeptides contained in striatonigral and striatopallidal neurons. They suggest that endogenous histamine and dopamine cooperate to modulate the activity of striatal projection neurons and strengthen the interest of H3-receptors as new targets for the treatment of psychotic disorders and drug abuse.
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Affiliation(s)
- Catherine Pillot
- Laboratoire de Physiologie, Faculté des Sciences Pharmaceutiques et Biologiques, 75006 Paris, France
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Pillot C, Heron A, Cochois V, Tardivel-Lacombe J, Ligneau X, Schwartz JC, Arrang JM. A detailed mapping of the histamine H(3) receptor and its gene transcripts in rat brain. Neuroscience 2002; 114:173-93. [PMID: 12207964 DOI: 10.1016/s0306-4522(02)00135-5] [Citation(s) in RCA: 257] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The detailed distribution of histamine H(3) receptor mRNAs in rat brain was analyzed by in situ hybridization using a 33P-labelled riboprobe and was combined for the first time with the detailed autoradiographic distribution of the receptor determined in the same animals with [(125)I]iodoproxyfan, a selective radioligand. The signals generated on adjacent brain sections by each probe were quantified and/or rated and were compared in order to identify neuronal populations expressing the receptor. In addition, the cellular localization of the transcripts within various brain structures was analyzed in sections dipped in a photographic emulsion. In the cerebral cortex, the strong mRNA expression in intermediate and deep layers indicates the presence of H(3) receptors on several types of neurons. The binding is dense except in layer V, suggesting that H(3) receptors are located on granule cells and apical dendrites of pyramidal cells. In addition to their localization on monoaminergic afferents, the dense binding in layer IV and strong mRNA expression in thalamic nuclei suggest the presence of heteroreceptors on thalamocortical projections. In the hippocampus, the strong mRNA expression but low binding in pyramidal layers of the CA1 and ventral CA3 fields suggest that H(3) receptors are abundant on efferent projections of pyramidal cells. In the dentate gyrus, some binding sites in the molecular layer may correspond to H(3) receptors synthesized in granule cells and coexpressed with H(1) and H(2) receptors in their dendrites. In the basal ganglia, H(3) receptors are highly expressed in the striatal complex and olfactory tubercles but not in islands of Calleja. Some of the striatal binding sites may correspond to presynaptic receptors present on afferents. The mRNAs in cortical layer V may encode for heteroreceptors on corticostriatal neurons. The presence of mRNAs in the substantia nigra pars compacta suggests that H(3) receptors are located upon nigrostriatal afferents. However, the absence of any signal in the ventral tegmental area indicates that some but not all dopaminergic neurons express H(3) receptors. In addition, the homogeneous mRNA expression within the caudate putamen and nucleus accumbens suggests that many striatal H(3) receptors are present on medium-sized, spiny projection neurons of both the direct and indirect movement pathways. In agreement, a dense binding, but low mRNA expression, is observed in external and internal pallidum and in substantia nigra pars reticulata. In the amygdala, the dense binding and mRNA expression indicate the presence of receptors on both afferents and projections. In the thalamus, the binding in some association nuclei may correspond to receptors present on neurons emanating from the deep cortical layers that strongly express the mRNAs, as well as receptors on the visual systems. However, the low binding and high mRNA expression in most nuclei indicate that many receptors are present upon thalamic projections. In the hypothalamus, the mRNA expression parallels the density of binding sites and is the highest in the tuberomammillary nucleus. Further investigation is needed to know if the dense binding and mRNA expression observed in other nuclei such as the paraventricular, ventromedial and medial tuberal nuclei correspond to pre- and/or postsynaptic receptors. mRNAs are also observed in several areas projecting to the tuberomammillary nucleus, such as the ventrolateral preoptic nucleus. In the lower brainstem, the high mRNA expression and very low binding in the locus coeruleus and raphe nuclei indicate that presynaptic rather than somatodendritic receptors regulate noradrenaline and serotonin release, respectively. A similar pattern in vestibular nuclei suggests that receptors located on projections account for the anti-vertigo properties of H(3) receptor antagonists. In the cerebellum, binding is hardly detectable but a strong mRNA expression is found in most, if not all, Purkinje cells as well as in several central cerebellar nuclei, suggesting the presence of H(3) receptors on efferent projections. The present study reports the first detailed quantification and/or rating of H(3) receptor mRNAs in the brain. The comparison, performed in the same animals, with the distribution of the H(3) receptor protein provides evidence for the presence of H(3) receptors on many neuronal perikarya, dendrites and projections. Although some localizations, mainly as auto- or heteroreceptors, are consistent with previous functional studies, the physiological role, if any, of most of these presynaptic or postsynaptic receptors remains to be established.
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Affiliation(s)
- C Pillot
- Laboratoire de Physiologie, Faculté des Sciences Pharmaceutiques et Biologiques, 4 avenue de l'Observatoire, 75006 Paris, France
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Ciproxifan, a histamine H3-receptor antagonist/inverse agonist, potentiates neurochemical and behavioral effects of haloperidol in the rat. J Neurosci 2002. [PMID: 12177222 DOI: 10.1523/jneurosci.22-16-07272.2002] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
By using double in situ hybridization performed with proenkephalin and H3-receptor riboprobes on the same sections from rat brain, we show that histamine H3 receptors are expressed within striatopallidal neurons of the indirect movement pathway. The majority ( approximately 70%) of striatal enkephalin neurons express H3-receptor mRNAs. This important degree of coexpression of proenkephalin and H3-receptor mRNAs prompted us to explore the effect of H3-receptor ligands on the regulation of enkephalin mRNA expression in the striatum. Acute administration of ciproxifan, a H3-receptor antagonist/inverse agonist, did not modify the expression of the neuropeptide by itself but strongly increased the upregulation of its expression induced by haloperidol. This potentiation (1) was suppressed by the administration of (R)-alpha-methylhistamine, a H3-receptor agonist, (2) occurred both in the caudate-putamen and nucleus accumbens, and (3) was also observed with a similar pattern on c-fos and neurotensin mRNA expression. Similarly, whereas it was devoid of any motor effect when used alone, ciproxifan strongly potentiated haloperidol-induced locomotor hypoactivity and catalepsy, two behaviors in which striatal neurons are involved. The strong H3-receptor mRNA expression in enkephalin neurons suggests that the synergistic neurochemical and motor effects of ciproxifan and haloperidol result from direct H3/D2-receptor interactions, leading to an enhanced activation of striatopallidal neurons of the indirect movement pathway. The potentiation of the effects of haloperidol by ciproxifan strengthens the potential interest of H3-receptor antagonists/inverse agonists to improve the symptomatic treatment of schizophrenia.
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