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Lalonde R, Strazielle C. The Neuroanatomical Basis of the 5-HT Syndrome and Harmalineinduced Tremor. Curr Rev Clin Exp Pharmacol 2024; 19:163-172. [PMID: 37403385 DOI: 10.2174/2772432819666230703095203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 05/16/2023] [Accepted: 05/31/2023] [Indexed: 07/06/2023]
Abstract
The 5-HT syndrome in rats is composed of head weaving, body shaking, forepaw treading, flat body posture, hindlimb abduction, and Straub tail. The importance of the brainstem and spinal cord for the syndrome is underlined by findings of 5,7-dihydroxytryptamine (5,7-DHT)-induced denervation supersensitivity in response to 5-HT-stimulant drugs. For head weaving and Straub tail, supersensitivity occurred when the neurotoxin was injected into the cisterna magna or spinal cord, for forepaw treading in cisterna magna, and for hindlimb abduction in the spinal cord. Although 5,7- DHT-related body shaking increased in the spinal cord, the sign decreased when injected into the striatum, indicating the modulatory influence of the basal ganglia. Further details on body shaking are provided by its reduced response to harmaline after 5-HT depletion caused by intraventricular 5,7-DHT, electrolytic lesions of the medial or dorsal raphe, and lesions of the inferior olive caused by systemic injection of 3-acetylpyridine along with those found in Agtpbp1pcd or nr cerebellar mouse mutants. Yet the influence of the climbing fiber pathway on other signs of the 5-HT syndrome remains to be determined.
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Affiliation(s)
- Robert Lalonde
- University of Lorraine, Laboratory of Stress, Immunity, Pathogens (EA7300), Medical School, 54500 Vandoeuvre-les- Nancy, France
| | - Catherine Strazielle
- University of Lorraine, Laboratory of Stress, Immunity, Pathogens (EA7300), Medical School, 54500 Vandoeuvre-les- Nancy, France
- Dépt Médecine, Centre Hospitalier Universitaire de Nancy, Vandoeuvre-les-Nancy, France
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2
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Beato A, Gori A, Boucherle B, Peuchmaur M, Haudecoeur R. β-Carboline as a Privileged Scaffold for Multitarget Strategies in Alzheimer's Disease Therapy. J Med Chem 2021; 64:1392-1422. [PMID: 33528252 DOI: 10.1021/acs.jmedchem.0c01887] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The natural β-carboline alkaloids display similarities with neurotransmitters that can be favorably exploited to design bioactive and bioavailable drugs for Alzheimer's disease (AD) therapy. Several AD targets are currently and intensively being investigated, divided in different hypotheses: mainly the cholinergic, the amyloid β (Aβ), and the Tau hypotheses. To date, only symptomatic treatments are available involving acetylcholinesterase and NMDA inhibitors. On the basis of plethoric single-target structure-activity relationship studies, the β-carboline scaffold was identified as a powerful tool for fostering activity and molecular interactions with a wide range of AD-related targets. This knowledge can undoubtedly be used to design multitarget-directed ligands, a highly relevant strategy preferred in the context of multifactorial pathology with intricate etiology such as AD. In this review, we first individually discuss the AD targets of the β-carbolines, and then we focus on the multitarget strategies dedicated to the deliberate design of new efficient scaffolds.
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Affiliation(s)
| | - Anthonin Gori
- Univ. Grenoble Alpes, CNRS, DPM, 38000 Grenoble, France.,CHANEL Parfums Beauté, F-93500 Pantin, France
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Ferraz CAA, de Oliveira Júnior RG, Picot L, da Silva Almeida JRG, Nunes XP. Pre-clinical investigations of β-carboline alkaloids as antidepressant agents: A systematic review. Fitoterapia 2019; 137:104196. [PMID: 31175948 DOI: 10.1016/j.fitote.2019.104196] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/31/2019] [Accepted: 06/04/2019] [Indexed: 12/19/2022]
Abstract
Depressive disorders remain a current public health problem whose prevalence has increased in the past decades. In the constant search for new therapeutic alternatives, β-carboline alkaloids have been identified as good candidates for new antidepressant drugs. In this systematic review, we summarized all pre-clinical investigations involving the use of natural or semisynthetic β-carboline in depression models. A literature search was conducted in August 2018, using PubMed, Scopus and Science Direct databases. All reports were carefully analyzed, and data extraction was conducted through standardized forms. Methodological quality assessment of in vivo studies was also performed. The entire systematic review was performed according to PRISMA statement. From a total of 373 articles, 26 met all inclusion criteria. In vitro and in vivo studies have evaluated a wide variety of β-carbolines through enzymatic and binding assays, and acute or chronic animal models. Most of the in vivo and in vitro studies is concentrated on two molecules: harman and harmine. They have been investigated in several animal models and some mechanisms of action have been proposed for their antidepressant activity. In general, β-carbolines modulate 5-HT and GABA systems, promote neurogenesis, induce neuroendocrine response and restore astrocytic function, being effective when administrated acutely or chronically in different animal models, including chronic mild stress protocols. In short, β-carbolines are multi-target antidepressant compounds and may be useful in the treatment of depressive disorders.
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Affiliation(s)
- Christiane Adrielly Alves Ferraz
- Núcleo de Estudos e Pesquisas de Plantas Medicinais (NEPLAME), Universidade Federal do Vale do São Francisco, Petrolina 56304-917, Brazil
| | | | - Laurent Picot
- Littoral Environnement et Sociétés (LIENSs), Université de La Rochelle, UMRi CNRS 7266, La Rochelle 17042, France
| | | | - Xirley Pereira Nunes
- Núcleo de Estudos e Pesquisas de Plantas Medicinais (NEPLAME), Universidade Federal do Vale do São Francisco, Petrolina 56304-917, Brazil.
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Piechowska P, Zawirska-Wojtasiak R, Mildner-Szkudlarz S. Bioactive β-Carbolines in Food: A Review. Nutrients 2019; 11:E814. [PMID: 30978920 PMCID: PMC6520841 DOI: 10.3390/nu11040814] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 04/09/2019] [Indexed: 12/02/2022] Open
Abstract
Harman and norharman, two neuroactive β-carbolines, are present in several plants and in thermally processed foods. They exhibited a wide spectrum of biological and pharmacological effects, including antioxidant, neuroprotective, and anti-inflammatory effects. In this article, we review the progress of recent research on the presence of these compounds in food, as well as their various biological and neuroactive properties. Our findings strongly suggest that some foods, especially coffee, can act as a rich source of β-carbolines, which may possibly be associated with a reduced risk for serious neurodegenerative diseases, such as Parkinson's and Alzheimer's.
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Affiliation(s)
- Paulina Piechowska
- Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland.
| | - Renata Zawirska-Wojtasiak
- Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland.
| | - Sylwia Mildner-Szkudlarz
- Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland.
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Tascon M, Gagliardi LG, Benavente F. Parts-per-trillion detection of harmala alkaloids in Undaria pinnatifida algae by on-line solid phase extraction capillary electrophoresis mass spectrometry. Anal Chim Acta 2017; 954:60-67. [PMID: 28081815 DOI: 10.1016/j.aca.2016.12.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 12/02/2016] [Accepted: 12/09/2016] [Indexed: 01/09/2023]
Abstract
β-carboline alkaloids of the harmala group (HAlks)-a family of compounds with pharmacologic effects-can be found at trace levels (<25 μg kg-1 algae) in the edible invasive algae Undaria pinnatifida, known commonly as wakame. In this study, we present a simple and sensitive method to detect and quantify at low parts-per-trillion levels the six HAlks more frequently found in those plants. The method is based on on-line solid phase extraction capillary electrophoresis mass spectrometry using a C18 sorbent. First, the methodology was optimized and validated with standard solutions through the use of ultraviolet (UV) and mass spectrometry (MS) detection. Second, the optimized method for MS detection was applied to an analysis of the HAlks in U. pinnatifida extracts. The method achieved limits of detection between 2 and 77 pg mL-1 for standards, producing an analyte preconcentration of about 1000-times in comparison to CE-MS. Some matrix effects were observed for the complex wakame extracts, especially for the most polar HAlks (harmol and harmalol), which bear aromatic hydroxyl groups. Harmine, harmaline, and norharmane were not detected in the algal extracts, whereas harmane was found at 70 pg mL-1 (70 ng kg-1 dry algae). The results underscored that C18-SPE-CE-MS may be considered as a powerful method to detect trace levels of alkaloids and other bioactive small molecules in complex plant extracts.
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Affiliation(s)
- Marcos Tascon
- Laboratorio de Investigación y Desarrollo de Métodos Analíticos (LIDMA), División Química Analítica, CONICET, Universidad Nacional de La Plata, Argentina
| | - Leonardo G Gagliardi
- Laboratorio de Investigación y Desarrollo de Métodos Analíticos (LIDMA), División Química Analítica, CONICET, Universidad Nacional de La Plata, Argentina
| | - Fernando Benavente
- Departament d'Enginyeria Química i Química Analítica, Nutrition and Food Safety Research Institute (INSA-UB), Universitat de Barcelona, Barcelona, Spain.
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de la Fuente Revenga M, Pérez C, Morales-García JA, Alonso-Gil S, Pérez-Castillo A, Caignard DH, Yáñez M, Gamo AM, Rodríguez-Franco MI. Neurogenic Potential Assessment and Pharmacological Characterization of 6-Methoxy-1,2,3,4-tetrahydro-β-carboline (Pinoline) and Melatonin-Pinoline Hybrids. ACS Chem Neurosci 2015; 6:800-10. [PMID: 25815906 DOI: 10.1021/acschemneuro.5b00041] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
6-Methoxy-1,2,3,4-tetrahydro-β-carboline (pinoline) and N-acetyl-5-methoxytryptamine (melatonin) are both structurally related to 5-hydroxytryptamine (serotonin). Here we describe the design, synthesis, and characterization of a series of melatonin rigid analogues resulting from the hybridization of both pinoline and melatonin structures. The pharmacological evaluation of melatonin-pinoline hybrids comprises serotonergic and melatonergic receptors, metabolic enzymes (monoamine oxidases), antioxidant potential, the in vitro blood-brain barrier permeability, and neurogenic studies. Pinoline at trace concentrations and 2-acetyl-6-methoxy-1,2,3,4-tetrahydro-β-carboline (2) were able to stimulate early neurogenesis and neuronal maturation in an in vitro model of neural stem cells isolated from the adult rat subventricular zone. Such effects are presumably mediated via serotonergic and melatonergic stimulation, respectively.
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Affiliation(s)
- Mario de la Fuente Revenga
- Instituto de Química
Médica, Consejo Superior de Investigaciones Científicas
(IQM-CSIC), C/Juan de la Cierva 3, 28006-Madrid, Spain
| | - Concepción Pérez
- Instituto de Química
Médica, Consejo Superior de Investigaciones Científicas
(IQM-CSIC), C/Juan de la Cierva 3, 28006-Madrid, Spain
| | - José A. Morales-García
- Instituto de Investigaciones
Biomédicas “Alberto Sols”, Consejo Superior de
Investigaciones Científicas (IIB-CSIC), C/Arturo Duperier 4, 28029-Madrid, Spain
- Centro de Investigación
Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), C/Valderrebollo 5, 28031-Madrid, Spain
| | - Sandra Alonso-Gil
- Instituto de Investigaciones
Biomédicas “Alberto Sols”, Consejo Superior de
Investigaciones Científicas (IIB-CSIC), C/Arturo Duperier 4, 28029-Madrid, Spain
- Centro de Investigación
Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), C/Valderrebollo 5, 28031-Madrid, Spain
| | - Ana Pérez-Castillo
- Instituto de Investigaciones
Biomédicas “Alberto Sols”, Consejo Superior de
Investigaciones Científicas (IIB-CSIC), C/Arturo Duperier 4, 28029-Madrid, Spain
- Centro de Investigación
Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), C/Valderrebollo 5, 28031-Madrid, Spain
| | - Daniel-Henri Caignard
- Institut
de Recherches
Servier, 125 Chemin de Ronde, 78290-Croissy sur Seine, France
| | - Matilde Yáñez
- Facultad
de Farmacia, Departamento de Farmacología, Universidad de Santiago de Compostela, Campus Vida, La Coruña, 15782-Santiago de Compostela, Spain
| | - Ana M. Gamo
- Facultad
de Ciencias Químicas, Departamento de Química Orgánica
I, Universidad Complutense de Madrid, 28040-Madrid, Spain
| | - María Isabel Rodríguez-Franco
- Instituto de Química
Médica, Consejo Superior de Investigaciones Científicas
(IQM-CSIC), C/Juan de la Cierva 3, 28006-Madrid, Spain
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Tascon M, Benavente F, Sanz-Nebot VM, Gagliardi LG. Fast determination of harmala alkaloids in edible algae by capillary electrophoresis mass spectrometry. Anal Bioanal Chem 2015; 407:3637-45. [PMID: 25749794 DOI: 10.1007/s00216-015-8579-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 01/20/2015] [Accepted: 02/19/2015] [Indexed: 01/08/2023]
Abstract
The use of algae as a foodstuff is rapidly expanding worldwide from the East Asian countries, where they are also used for medical care. Harmala alkaloids (HAlk) are a family of bioactive compounds found in the extracts of some plants, including wakame (Undaria pinnatifida), an edible marine invasive algae. HAlks are based on a characteristic β-carboline structure with at least one amino ionizable group. In this work, we report the successful separation of a mixture of six HAlks (harmine, harmaline, harmol, harmalol, harmane, and norharmane) by capillary electrophoresis ion-trap mass spectrometry (CE-IT-MS) in less than 8 min. Optimum separation in fused-silica capillaries and detection sensitivity in positive-ion mode were achieved using a background electrolyte (BGE) with 25 mmol L(-1) ammonium acetate (pH 7.8) and 10% (v/v) methanol, and a sheath liquid with 60:40 (v/v) isopropanol-water and 0.05% (v/v) formic acid. The separation method was validated in terms of linearity, limits of detection and quantification, repeatability, and reproducibility. Later, a sample pretreatment was carefully optimized to determine HAlks in commercial wakame samples with excellent recovery and repeatability. For the complex wakame extracts, the MS-MS fragmentation patterns of the different HAlks were useful to ensure a reliable identification. The complete procedure was validated using the standard-addition calibration method, determining matrix effects on the studied compounds. Harmalol, harmine, and harmaline were naturally present in the samples and were quantified at very low concentrations, ranging from 7 to 24 μg kg(-1) dry algae.
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Affiliation(s)
- Marcos Tascon
- Laboratorio de Investigación y Desarrollo de Métodos Analíticos (LIDMA), Universidad Nacional de La Plata, Calle 47 y 115, 1900, La Plata, Buenos Aires, Argentina
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Radulescu MC, Bucur MP, Bucur B, Radu GL. Biosensor based on inhibition of monoamine oxidases A and B for detection of β-carbolines. Talanta 2015; 137:94-9. [PMID: 25770611 DOI: 10.1016/j.talanta.2015.02.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 02/03/2015] [Accepted: 02/06/2015] [Indexed: 11/26/2022]
Abstract
β-Carbolines are inhibitors of monoamine oxidases (MAO-A and MAO-B) and can be found in foods, hallucinogenic plant or various drugs. We have developed a fast analysis method for β-carbolines based on the inhibition of MAO. The enzymes were immobilized on screen-printed electrodes modified with a stabilized film of Prussian blue that contain also copper. We have used benzylamine as substrate for the enzymatic reaction and the hydrogen peroxide was measured amperometrically at -50 mV. The detection limits obtained were 5.0 µM for harmane and 2.5 µM for both harmaline and norharmane. The MAO-A is inhibited by all three tested β-carbolines (harmane, norharmane, and harmaline) while MAO-B is inhibited only by norharmane. The presence of norharmane in mixtures of β-carbolines can be identified based on the difference between the cumulative inhibition of MAO-A by all β-carbolines and MAO-B inhibition. The developed biosensors were used for food analysis.
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Affiliation(s)
- Maria-Cristina Radulescu
- National Institute of Research and Development for Biological Sciences, Centre of Bioanalysis, 296, Splaiul Independentei, 060031 Bucharest, Romania
| | - Madalina-Petruta Bucur
- National Institute of Research and Development for Biological Sciences, Centre of Bioanalysis, 296, Splaiul Independentei, 060031 Bucharest, Romania
| | - Bogdan Bucur
- National Institute of Research and Development for Biological Sciences, Centre of Bioanalysis, 296, Splaiul Independentei, 060031 Bucharest, Romania.
| | - Gabriel Lucian Radu
- National Institute of Research and Development for Biological Sciences, Centre of Bioanalysis, 296, Splaiul Independentei, 060031 Bucharest, Romania
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Involvement of dopamine D1/D2 receptors on harmane-induced amnesia in the step-down passive avoidance test. Eur J Pharmacol 2010; 634:77-83. [PMID: 20188725 DOI: 10.1016/j.ejphar.2010.02.027] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2009] [Revised: 01/19/2010] [Accepted: 02/08/2010] [Indexed: 11/22/2022]
Abstract
Ingestion of harmane and other alkaloids derived from plant Peganum harmala has been shown to elicit profound behavioural and toxic effects in humans, including hallucinations, excitation, feelings of elation, and euphoria. These alkaloids in the high doses can cause a toxic syndrome characterized by tremors and convulsions. Harmane has also been shown to act on a variety of receptor systems in the mammalian brain, including those for serotonin, dopamine and benzodiazepines. In animals, it has been reported to affect short and long term memory. In the present study, effects of dopamine D1 and D2 receptor antagonists on the harmane (HA)-induced amnesia and exploratory behaviors were examined in mice. One-trial step-down and hole-board paradigms were used for the assessment of memory retention and exploratory behaviors in adult male NMRI mice respectively. Intraperitoneal (i.p.) administration of HA (5 and 10 mg/kg) immediately after training decreased memory consolidation, while had no effect on anxiety-like behavior. Memory retrieval was not altered by 15- or 30 min pre-testing administration of the D1 (SCH23390, 0.025, 0.05 and 0.1 mg/kg) or D2 (sulpiride 12.5, 25 and 50 mg/kg) receptor antagonists, respectively. In contrast, SCH23390 (0.05 and 0.1 mg/kg) or sulpiride (25 and 50 mg/kg) pre-test administration fully reversed HA-induced impairment of memory consolidation. Finally, neither D1 nor D2 receptor blockade affected exploratory behaviors in the hole-board paradigm. Altogether, these findings strongly suggest an involvement of D1 and D2 receptors modulation in the HA-induced impairment of memory consolidation.
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Farzin D, Mansouri N. Antidepressant-like effect of harmane and other beta-carbolines in the mouse forced swim test. Eur Neuropsychopharmacol 2006; 16:324-8. [PMID: 16183262 DOI: 10.1016/j.euroneuro.2005.08.005] [Citation(s) in RCA: 108] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2005] [Revised: 08/14/2005] [Accepted: 08/30/2005] [Indexed: 11/30/2022]
Abstract
The purpose of the present study was to determine the effects of harmane, norharmane and harmine on the immobility time in the mouse forced swim test (FST) - an animal model of depression. After 30 min of the beta-carbolines injections, mice were placed individually in a vertical glass cylinder (height, 25 cm; diameter, 12 cm) containing water about 15 cm deep at 22+/-1 degrees C and forced to swim. Treatment of animals with harmane (5-15 mg/kg, i.p.), norharmane (2.5-10 mg/kg, i.p.) and harmine (5-15 mg/kg, i.p.) reduced dose-dependently the time of immobility. Their antidepressant-like effects were not affected by pretreatment with reserpine at the dose of 5 mg/kg, i.p., 18 h before the test, which did not modify the immobility time. Conversely, when flumazenil (5 mg/kg, i.p.) was administered 30 min before the test, it was able to antagonize completely the antidepressant-like effects of harmane, norharmane and harmine. It was concluded that harmane, norharmane and harmine reduce the immobility time in this test, suggesting an antidepressant-like effect, via an inverse-agonistic mechanism located in the benzodiazepine receptors.
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Affiliation(s)
- Davood Farzin
- Department of Pharmacology, School of Medicine, Mazandaran University of Medical Sciences, Sari 48168, Iran.
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Han YS, Kim JM, Cho JS, Lee CS, Kim DE. Comparison of the Protective Effect of Indole beta-carbolines and R-(-)-deprenyl Against Nitrogen Species-Induced Cell Death in Experimental Culture Model of Parkinson's Disease. J Clin Neurol 2005; 1:81-91. [PMID: 20396475 PMCID: PMC2854935 DOI: 10.3988/jcn.2005.1.1.81] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2005] [Accepted: 02/07/2005] [Indexed: 11/17/2022] Open
Abstract
Background The membrane permeability transition of mitochondria has been suggested to be involved in toxic and oxidative forms of cell injury. Mitochondrial dysfunction is considered to play a critical role in neurodegeneration in Parkinson's disease. Despite the suggestion that indole β-carbolines may be neurotoxic, these compounds provide a protective effect against cytotoxicity of other neurotoxins. In addition, the effect of indole β-carbolines on change in the mitochondrial membrane permeability due to reactive nitrogen species (RNS), which may lead to cell death, has not been clarified. Methods Differentiated PC12 cells were used as the experimental culture model for the investigation of neuronal cell injury, which occurs in Parkinson's disease. The effect of indole β-carbolines (harmalol and harmine) on differentiated PC12 cells against toxicity of S-nitroso-N-acetyl-DL-penicillamine (SNAP) was determined by measuring the effect on the change in transmembrane potential, cytochrome c release, formation of ROS, GSH contents, caspase-3 activity and cell viability, and was compared to that of R-(-)-deprenyl. Results Specific inhibitors of caspases (z-LEHD.fmk, z-DQMD.fmk) and antioxidants (N-acetylcysteine, dithiothreitol, melatonin, carboxy-PTIO and uric acid) depressed cell death in PC12 cells due to SNAP. β-Carbolines and R-(-)-deprenyl attenuated the SNAP-induced cell death and GSH depletion concentration dependently with a maximal inhibitory effect at 25-50 µM. The compounds inhibited the nuclear damage, decrease in mitochondrial transmembrane potential, cytochrome c release and formation of reactive oxygen species caused by SNAP in PC12 cells. β-Carbolines and R-(-)-deprenyl attenuated the H2O2-induced cell death and depletion of GSH. Conclusions The results suggest that indole β-carbolines attenuate the SNAP-induced viability loss in PC12 cells by inhibition of change in the mitochondrial membrane permeability, which may be caused by free radicals. Indole β-carbolines appear to exert a protective effect against the nitrogen species-mediated neuronal cell injury in Parkinson's disease comparable to R-(-)-deprenyl.
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Affiliation(s)
- Young-Su Han
- Department of Neurology, Seoul Veterans Hospital, Seoul, Korea
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Herraiz T. Relative exposure to beta-carbolines norharman and harman from foods and tobacco smoke. FOOD ADDITIVES AND CONTAMINANTS 2004; 21:1041-50. [PMID: 15764332 DOI: 10.1080/02652030400019844] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Norharman and harman are two heterocyclic beta-carboline (9H-pyrido[3,4-b]indole) alkaloids with biological and potential toxicological activity that appear in foodstuffs and environmental sources. To assess the occurrence and distribution of these compounds and to estimate the exposure levels based on the detected amounts, numerous samples of foodstuffs and cigarette smoke were analysed by solid-phase extraction and high-performance liquid chromatography-fluorescence. The levels found of beta-carbolines were highly variable. Low processed foodstuffs (i.e. milk, yoghurt, uncooked meats and fish) did not contain norharman and harman above the detection limit. Others, however, contained relatively high concentrations (at the tens of ng g(-1) or microg l(-1) level) depending on the processing conditions as, for example, 'well-done' cooked meat and fish. The highest amounts of norharman and harman were found in brewed coffee (29-207 microg l(-1)), sauces (soy sauce and Tabasco, among others; 4-252 microg l(-1)), 'well done' cooked meat and fish (57-160 ng g(-1)), toasted bread (42-160 ng g(-1)), and fermented alcoholic beverages (n.d.-41 mug l(-1)). beta-Carbolines also occurred in a high amount in the mainstream of cigarette smoke (207-2780 ng/cigarette), which is an important contributor to daily exposure to these compounds. Based on these results, it is concluded that the daily exposure to beta-carbolines in humans might be from tens to hundreds of micrograms, with cigarette smoke, coffee, certain seasonings, cooked foods and alcoholic beverages, in this order, being the major contributors. Many other foodstuffs might also contribute with minor amounts of norharman and harman. Foods and tobacco smoke might be potential contributors to the reported endogenous presence of beta-carbolines in humans.
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Affiliation(s)
- T Herraiz
- Spanish Council for Scientific Research, Instituto de Fermentaciones Industriales, CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain.
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Song Y, Kesuma D, Wang J, Deng Y, Duan J, Wang JH, Qi RZ. Specific inhibition of cyclin-dependent kinases and cell proliferation by harmine. Biochem Biophys Res Commun 2004; 317:128-32. [PMID: 15047157 DOI: 10.1016/j.bbrc.2004.03.019] [Citation(s) in RCA: 140] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2004] [Indexed: 11/22/2022]
Abstract
As key regulators of the cell proliferation cycle, cyclin-dependent kinases (CDKs) are attractive targets for the development of anti-tumor drugs. In the present study, harmine was identified from a collection of herbal compounds to be a specific inhibitor of Cdk1/cyclin B, Cdk2/cyclin A, and Cdk5/p25 with IC50 values at low micromoles. It displayed little effect on other serine/threonine and tyrosine kinases tested. The CDK inhibition by harmine is competitive with ATP-Mg2+, suggesting that it binds to the ATP-Mg2+-binding pocket of CDKs. In cytotoxicity assays, harmine exhibited a strong inhibitory effect on the growth and proliferation of carcinoma cells whereas it had no significant effect on quiescent fibroblasts. Further, harmine was found to block DNA replication in the carcinoma cells. Taken together, harmine is a selective inhibitor of CDKs and cell proliferation.
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Affiliation(s)
- Yongcheng Song
- Institute of Molecular and Cell Biology, 30 Medical Drive, Singapore 117609, Singapore
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14
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Park TH, Kwon OS, Park SY, Han ES, Lee CS. N-methylated beta-carbolines protect PC12 cells from cytotoxic effect of MPP+ by attenuation of mitochondrial membrane permeability change. Neurosci Res 2003; 46:349-58. [PMID: 12804796 DOI: 10.1016/s0168-0102(03)00097-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Opening of the mitochondrial permeability transition pore has been recognized to be involved in cell death. The present study investigated the effect of beta-carbolines (harmaline and harmalol) on the MPP(+)-induced change in the mitochondrial membrane permeability and cell death in differentiated PC12 cells. beta-Carbolines and antioxidants (superoxide dismutase, catalase, ascorbate or rutin) prevented the loss of cell viability in PC12 cells treated with 250 microM MPP(+), while the effects of N-acetylcysteine and dithiothreitol were not observed. beta-Carbolines reduced the condensation and fragmentation of nuclei caused by MPP(+) in PC12 cells. beta-Carbolines alone did not exhibit a significant cytotoxic effect on PC12 cells. beta-Carbolines (50 microM) inhibited the decrease in mitochondrial transmembrane potential, cytochrome c release, activation of caspase-3, formation of reactive oxygen species (ROS) and depletion of GSH caused by MPP(+) in PC12 cells. beta-Carbolines reduced the hydrogen peroxide- or SIN-1-induced cell death in PC12 cells. The results suggest that beta-carbolines may attenuate the MPP(+)-induced viability loss in PC12 cells by inhibition of change in the mitochondrial membrane permeability and by antioxidant effect.
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Affiliation(s)
- Tai Hwan Park
- Department of Neurology, College of Medicine, Chung-Ang University, 156-756, Seoul, South Korea
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15
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Herraiz T. Identification and occurrence of the bioactive beta-carbolines norharman and harman in coffee brews. FOOD ADDITIVES AND CONTAMINANTS 2002; 19:748-54. [PMID: 12227938 DOI: 10.1080/02652030210145892] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Norharman and harman, two heterocyclic beta-carboline alkaloids with biological activity, were found in brewed coffee. Identification and analysis were carried out by HPLC-MS and RP-HPLC-fluorescence, respectively. All tested samples of brewed coffee including ground coffee, decaffeinated coffee, instant coffee and espresso contained both norharman and harman in variable amounts. Norharman was the major beta-carboline alkaloid in brewed coffee at levels up to 9.34 microg g(-1) in instant ground coffee compared with harman, which had levels up to 1.67 microg g(-1). The two beta-carbolines appeared to be formed during roasting of the coffee beans. It is concluded that drinking coffee is a major exogenous dietary source of these bioactive beta-carboline alkaloids previously reported as mild psychoactive compounds in animal studies and in vitro co-mutagens. These results support our previous conclusion that foods containing beta-carbolines are an important exogenous source of these alkaloids in humans.
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Affiliation(s)
- T Herraiz
- Spanish Council for Scientific Research, Instituto de Fermentaciones Industriales, CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain.
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16
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Song Y, Wang J, Teng SF, Kesuma D, Deng Y, Duan J, Wang JH, Qi RZ, Sim MM. Beta-carbolines as specific inhibitors of cyclin-dependent kinases. Bioorg Med Chem Lett 2002; 12:1129-32. [PMID: 11909733 DOI: 10.1016/s0960-894x(02)00094-x] [Citation(s) in RCA: 105] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Harmine (3), 7-fluoro-1-methyl beta-carboline (35) and 1-(5-methyl-imidazol-4-yl) beta-carboline (41) were potent and specific inhibitors of cyclin-dependent kinases. The degree of aromaticity of the tricyclic ring and the positioning of substituents are important for inhibitory activity. While most beta-carbolines inhibited CDK2 and CDK5 to the same extent, selective inhibition against CDK2 was observed in 1-(2-chlorophenyl)- (12), 1-(2-fluorophenyl)- (15), and 1-(2-chloro-5-nitrophenyl)- (28) beta-carbolines.
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Affiliation(s)
- Yongcheng Song
- Medicinal and Combinatorial Chemistry Group, Institute of Molecular and Cell Biology, 30 Medical Drive, Singapore 117609, Singapore
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17
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Lee CS, Lee CS, Ko HH, Song JH, Han ES. Effect of R-(-)-deprenyl and harmaline on dopamine- and peroxynitrite-induced membrane permeability transition in brain mitochondria. Neurochem Res 2002; 27:215-24. [PMID: 11958519 DOI: 10.1023/a:1014832520809] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The present study examined the effect of MAO inhibitors, deprenyl and harmaline, on the membrane permeability transition in brain mitochondria. Deprenyl, harmaline, and antioxidant enzymes (SOD and catalase) attenuated alteration of the swelling, membrane potential, cytochrome c release, and Ca2+ transport in mitochondria treated with dopamine. In contrast, deprenyl and harmaline did not reduce the peroxynitrite-induced change in membrane permeability. Deprenyl and harmaline inhibited the decrease in thioredoxin reductase activity and the thiol oxidation in mitochondria treated with dopamine but did not decrease the effect of peroxynitrite. Deprenyl and harmaline significantly decreased the formation of melanin from dopamine. The results suggest that deprenyl and harmaline may protect brain mitochondria against the toxic action of dopamine oxidation by the maintenance of thioredoxin reductase activity, inhibition of thiol oxidation, and inhibition of dopamine oxidation product formation. In contrast, MAO inhibitors may not defend brain mitochondria against damaging action of peroxynitrite.
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Affiliation(s)
- Chung Soo Lee
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul, Korea.
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18
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Gerardy J, Dresse A. Comparative effects of dehydropirlindole and other compounds on rat brain monoamine oxidase type A. Prog Neuropsychopharmacol Biol Psychiatry 2002; 26:75-9. [PMID: 11853123 DOI: 10.1016/s0278-5846(01)00232-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Dehydropirlindole (DHP) is the dehydroderivative of pirlindole, a short-acting inhibitor of monoamine oxidase type A (MAO-A). DHP would be formed in vivo from oxidation of pirlindole by MAO-A. The aim of this work is to compare the inhibitory potency of DHP with three reference compounds: harmaline, befloxatone and clorgyline; the two former are reversible inhibitors and the later is an irreversible inhibitor of MAO-A. Both in vitro and ex vivo assays were performed on rat brain homogenates, and IC50 and ID50 were calculated by a fluorometric method with octopamine as selective MAO-A substrate. In vitro clorgyline and befloxatone were more potent inhibitors than DHP and harmaline with IC50 values of 1.6 and 7.7 nM vs. 40 and 55 nM; ex vivo ID50 values were 1.5 and 32 micromol/kg vs. 41 and 49 micromol/kg. Befloxatone had an ID50/IC50 ratio four to five times higher than DHP and harmaline. Preincubation time experiments did not distinguish befloxatone from DHP and harmaline. In conclusion, this study shows that DHP behaves as a reversible MAO-A inhibitor whose potency is situated between that of befloxatone and harmaline.
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Affiliation(s)
- Jean Gerardy
- Department of Pharmacology, Institute of Pathology, Belgium
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19
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Kim DH, Jang YY, Han ES, Lee CS. Protective effect of harmaline and harmalol against dopamine- and 6-hydroxydopamine-induced oxidative damage of brain mitochondria and synaptosomes, and viability loss of PC12 cells. Eur J Neurosci 2001; 13:1861-72. [PMID: 11403679 DOI: 10.1046/j.0953-816x.2001.01563.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The present study elucidated the protective effect of beta-carbolines (harmaline, harmalol and harmine) against oxidative damage of brain mitochondria, synaptosomes and PC12 cells induced by either dopamine or 6-hydroxydopamine. Harmaline, harmalol and antioxidant enzymes (superoxide dismutase/SOD and catalase) decreased the alteration of mitochondrial swelling and membrane potential induced by 200 microM dopamine or 100 microM 6-hydroxydopamine. Deprenyl attenuated the dopamine-induced mitochondrial dysfunction but did not reduce the effect of 6-hydroxydopamine. While beta-carbolines inhibited the electron flow in mitochondria, they did not enhance the depressant effect of catecholamines. beta-Carbolines and antioxidant enzymes reversed the depression of synaptosomal Ca2+ uptake induced by 10 microM catecholamines. The compounds inhibited the catecholamine-induced thioredoxin reductase inhibition, thiol oxidation and carbonyl formation in mitochondria and synaptosomes. beta-Carbolines decreased the reactive species-induced deoxyribose degradation. Harmaline and harmalol reduced the catecholamine-induced loss of the transmembrane potential and of cell viability in PC12 cells. beta-Carbolines alone did not show a significant cytotoxic effect on PC12 cells. The results suggest that beta-carbolines may attenuate the dopamine- or 6-hydroxydopamine-induced alteration of brain mitochondrial and synaptosomal functions, and viability loss in PC12 cells, by a scavenging action on reactive oxygen species and inhibition of thiol oxidation.
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Affiliation(s)
- D H Kim
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul 156-756, Korea
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20
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Lee CS, Han ES, Jang YY, Han JH, Ha HW, Kim DE. Protective effect of harmalol and harmaline on MPTP neurotoxicity in the mouse and dopamine-induced damage of brain mitochondria and PC12 cells. J Neurochem 2000; 75:521-31. [PMID: 10899927 DOI: 10.1046/j.1471-4159.2000.0750521.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The present study elucidated the protective effect of beta-carbolines (harmaline, harmalol, and harmine) on oxidative neuronal damage. MPTP treatment increased activities of total superoxide dismutase, catalase, and glutathione peroxidase and levels of malondialdehyde and carbonyls in the basal ganglia, diencephalon plus midbrain of brain compared with control mouse brain. Coadministration of harmalol (48 mg/kg) attenuated the MPTP effect on the enzyme activities and formation of tissue peroxidation products. Harmaline, harmalol, and harmine attenuated both the 500 microM MPP(+)-induced inhibition of electron flow and membrane potential formation and the 100 microM dopamine-induced thiol oxidation and carbonyl formation in mitochondria. The scavenging action of beta-carbolines on hydroxyl radicals was represented by inhibition of 2-deoxy-D-ribose degradation. Harmaline and harmalol (100 microM) attenuated 200 microM dopamine-induced viability loss in PC12 cells. The beta-carbolines (50 microM) attenuated 50 microM dopamine-induced apoptosis in PC12 cells. The compounds alone did not exhibit significant cytotoxic effects. The results indicate that beta-carbolines attenuate brain damage in mice treated with MPTP and MPP(+)-induced mitochondrial damage. The compounds may prevent dopamine-induced mitochondrial damage and PC12 cell death through a scavenging action on reactive oxygen species and inhibition of monoamine oxidase and thiol oxidation.
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Affiliation(s)
- C S Lee
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul, Korea. Department of Neurology, Korean Veterans Hospital, Seoul, Korea.
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21
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Pähkla R, Kask A, Rägo L. Differential effects of beta-carbolines and antidepressants on rat exploratory activity in the elevated zero-maze. Pharmacol Biochem Behav 2000; 65:737-42. [PMID: 10764931 DOI: 10.1016/s0091-3057(99)00265-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Present experiments were designed to compare the effects of antidepressants desipramine (10 and 20 mg/kg IP) and fluoxetine (5 and 10 mg/kg IP) with anxiogenic beta-carboline DMCM (0.5 and 1.0 mg/kg IP) in the elevated zero-maze test in rats. The second aim of this study was to assess the effects of pinoline (6-methoxy-1,2,3, 4-tetrahydro-beta-carboline) in the rat elevated zero-maze test in comparison with structurally unrelated beta-carboline DMCM and antidepressants. The time spent in the open part of the elevated zero-maze was not significantly affected by antidepressants, but was decreased by beta-carbolines pinoline and DMCM. The number of line crossings in the open parts and the number of head dips were also decreased more by beta-carbolines in comparison with antidepressants. Latency to enter the open part was statistically significantly increased only by DMCM. Measurement of locomotor activity in a separate experiment indicated that activity of the rats' time moving, distance traveled, and number of rearings were reduced by all four drugs studied. These results demonstrate that the effects of antidepressants in the elevated zero-maze test differ from the effects of the reference anxiogenic compound DMCM. The effects of pinoline and DMCM in the zero-maze test were similar, which suggests the involvement of mechanisms other than serotoninergic in the action of pinoline.
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Affiliation(s)
- R Pähkla
- Department of Pharmacology, University of Tartu, Ravila 19, 50411, Tartu, Estonia
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22
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Meignin C, Hilber P, Caston J. Influence of stimulation of the olivocerebellar pathway by harmaline on spatial learning in the rat. Brain Res 1999; 824:277-83. [PMID: 10196459 DOI: 10.1016/s0006-8993(99)01230-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Administration of harmaline to the rat, which activates synchronously and rhythmically the olivary neurons and the olivocerebellar pathway, elicits visuo-motor, spatial learning and spatial memory deficiencies which are dose-dependent. Since activation and lesion of the olivocerebellar pathway have similar effects, it is concluded that normal functioning of this pathway is required for spatial learning achievement.
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Affiliation(s)
- C Meignin
- UPRES PSY.CO 1780, Faculté des Sciences, Laboratoire de Neurobiologie de l'Apprentissage, Université de Rouen, 76821 Mont-Saint-Aignan Cedex, France
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23
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Rivas P, Cassels BK, Morello A, Repetto Y. Effects of some beta-carboline alkaloids on intact Trypanosoma cruzi epimastigotes. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART C, PHARMACOLOGY, TOXICOLOGY & ENDOCRINOLOGY 1999; 122:27-31. [PMID: 10190025 DOI: 10.1016/s0742-8413(98)10069-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Several beta-carboline (9H-pyrido-[3,4-b]-indole) alkaloids were evaluated for in vitro trypanosomicidal activity against Trypanosoma cruzi epimastigotes belonging to two different strains (Tulahuén and LQ) showing different sensitivity to nifurtimox. Important differences were observed in the susceptibility of the parasites to these natural substances, with the relatively nifurtimox-resistant LQ strain showing greater sensitivity to the beta-carbolines. Respiratory chain inhibition appears to be a possible determinant of the trypanosomicidal activity of these compounds.
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Affiliation(s)
- P Rivas
- Department of Chemistry, Faculty of Sciences, University of Chile, Santiago.
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24
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Pähkla R, Rägo L, Callaway JJ, Airaksinen MM. Binding of pinoline on the 5-hydroxytryptamine transporter: competitive interaction with [3H] citalopram. PHARMACOLOGY & TOXICOLOGY 1997; 80:122-6. [PMID: 9101584 DOI: 10.1111/j.1600-0773.1997.tb00384.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Pinoline (6-methoxy-1,2,3,4-tetrahydro-beta-carboline) is a naturally occurring compound in the mammalian body which inhibits 5-hydroxytryptamine (5-HT) uptake and exerts antidepressant-like behavioural effects in rats. The present study investigates the effects of pinoline on [3H]citalopram binding to the 5-HT transporter on rat brain. Our experiments revealed that pinoline inhibits [3H]citalopram binding with IC50 1255 +/- 167 nM and Ki 572 +/- 76 nM; Hill coefficient for inhibition was close to 1. In saturation experiments, pinoline co-incubated with [3H]citalopram, increased dose-dependently the Kd value but had no effect on the Bmax value of [3H]citalopram binding. Micromolar concentrations of pinoline did not have influence on the dissociation rate of specifically bound [3H]citalopram. Binding parameters of [3H]citalopram did not differ significantly in cerebral cortex and hippocampus of rats treated for 10 days with pinoline or vehicle. These results indicate that pinoline did not have any modulative influence on the activity of 5-HT transporter and it interacts competitively with citalopram on the substrate recognition site of the 5-HT transporter.
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Affiliation(s)
- R Pähkla
- Department of Pharmacology, University of Tartu, Estonia
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