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Liu L, Jiang L, Zhang J, Ma Y, Wan M, Hu X, Yang L. Imperatorin inhibits oxidative stress injury and neuroinflammation via the PI3K/AKT signaling pathway in the MPTP-induced Parkinson's disease mouse. Neuroreport 2024; 35:175-184. [PMID: 38305108 DOI: 10.1097/wnr.0000000000001997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Parkinson's disease (PD) is a disorder of neurodegeneration. Imperatorin is an active natural furocoumarin characterized by antioxidant, anti-inflammatory, and potent vasodilatory properties. Therefore, we aimed to investigate the biological functions of imperatorin and its mechanisms against PD progression. C57BL/6 mice were intraperitoneally injected with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP; 30 mg/kg) daily for 5 consecutive days to mimic PD conditions in vivo. The MPTP-induced PD model mice were intraperitoneally injected with imperatorin (5 mg/kg) for 25 consecutive days after MPTP administration. The motor and cognitive functions of mice were examined by rotarod test, hanging test, narrow beam test and Morris water maze test. After analysis of MWM test, the expression levels of tyrosine hydroxylase and Iba-1 in the substantia nigra pars compacta were measured by immunohistochemistry staining, immunofluorescence staining and western blotting. The expression levels of striatal dopamine and its metabolite 3,4-dihydroxyphenylacetic acid were also measured. The protein levels of inducible nitric-oxide synthase, cyclooxygenase-2, phosphorylated phosphatidylinositol 3-kinase (PI3K) and phosphorylated protein kinase B (Akt) in the mouse striatum were estimated by western blotting. The expression levels of proinflammatory cytokines including tumor necrosis factor, interleukin (IL)-1β and IL-6 in the mouse striatum were measured by ELISA kits. The expression levels of superoxide dismutase, malondialdehyde and glutathione in the mouse midbrains were measured with commercially available kits. TUNEL staining was performed to identify the apoptosis of midbrain cells. Histopathologic changes in the mouse striata were assessed by hematoxylin-eosin staining. Imperatorin treatment markedly improved spatial learning and memory abilities of MPTP-induced PD mice. The MPTP-induced dopaminergic neuron loss in the mouse striata was inhibited by imperatorin. Imperatorin also suppressed neuroinflammation and neuronal oxidative stress in the midbrains of MPTP-induced PD mice. Mechanistically, imperatorin treatment inhibited the MPTP-induced reduction in the PI3K/Akt pathway. Imperatorin treatment can prevent dopaminergic neuron degeneration and improve cognitive functions via its potent antioxidant and anti-inflammatory properties in an MPTP-induced PD model in mice by regulating the PI3K/Akt pathway.
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Affiliation(s)
- Li Liu
- Encephalopathy Department 2, Wuhan Hospital of Traditional Chinese Medicine
| | - Lei Jiang
- Encephalopathy Department 2, Wuhan Hospital of Traditional Chinese Medicine
| | - Jinglan Zhang
- Encephalopathy Department 2, Wuhan Hospital of Traditional Chinese Medicine
| | - Yan Ma
- Encephalopathy Department 2, Wuhan Hospital of Traditional Chinese Medicine
| | - Min Wan
- Department of Clinical laboratory, Wuhan Hospital of Traditional Chinese Medicine, Wuhan, China
| | - Xueqing Hu
- Encephalopathy Department 2, Wuhan Hospital of Traditional Chinese Medicine
| | - Lian Yang
- Encephalopathy Department 2, Wuhan Hospital of Traditional Chinese Medicine
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Łuszczki JJ, Kochman-Moskal E, Bojar H, Florek-Łuszczki M, Skalicka-Woźniak K. Imperatorin interacts additively with novel antiseizure medications in the mouse maximal electroshock-induced seizure model: an isobolographic transformation. Pharmacol Rep 2024; 76:216-222. [PMID: 38015370 PMCID: PMC10830790 DOI: 10.1007/s43440-023-00555-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/02/2023] [Accepted: 11/02/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND Anticonvulsant effects of imperatorin (IMP) have been experimentally confirmed earlier, but no information is available on the interaction profiles of this naturally occurring coumarin when combined with novel antiseizure medication (ASMs). This study aimed to determine the effects of IMP on the anticonvulsant effects of lacosamide (LCM), oxcarbazepine (OXC), pregabalin (PGB), and topiramate (TPM) in the maximal electroshock-induced seizure (MES) model in mice. METHODS The anticonvulsant effects exerted by novel ASMs (LCM, OXC, PGB, and TPM) when combined with constant doses of IMP (25 and 50 mg/kg) underwent isobolographic transformation to precisely classify the observed interactions in the mouse MES model. Total brain concentrations of ASMs were measured with high-pressure liquid chromatography to exclude the pharmacokinetic nature of interactions among IMP and the tested ASMs. RESULTS IMP (50 mg/kg) significantly enhanced (p < 0.01) the anticonvulsant potency of LCM, OXC, PGB, and TPM in the mouse MES model. IMP (25 mg/kg) mildly potentiated the anticonvulsant action of LCM, OXC, PGB, and TPM, but no statistical significance was reported for these combinations. The isobolographic transformation of data from the MES test revealed that the interactions of novel ASMs with IMP were additive. Moreover, IMP (50 mg/kg) did not affect the total brain content of any of the novel ASMs in experimental mice. CONCLUSIONS The additive interactions of IMP with LCM, OXC, PGB, and TPM in the mouse MES model accompanied by no pharmacokinetic changes in the total brain content of ASMs are worthy of recommendation for further studies.
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Affiliation(s)
- Jarogniew J Łuszczki
- Department of Occupational Medicine, Medical University of Lublin, Lublin, Poland.
| | | | - Hubert Bojar
- Department of Toxicology and Food Safety, Institute of Rural Health, Lublin, Poland
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Malaník M, Čulenová M, Sychrová A, Skiba A, Skalicka-Woźniak K, Šmejkal K. Treating Epilepsy with Natural Products: Nonsense or Possibility? Pharmaceuticals (Basel) 2023; 16:1061. [PMID: 37630977 PMCID: PMC10459181 DOI: 10.3390/ph16081061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 08/27/2023] Open
Abstract
Epilepsy is a neurological disease characterized by recurrent seizures that can lead to uncontrollable muscle twitching, changes in sensitivity to sensory perceptions, and disorders of consciousness. Although modern medicine has effective antiepileptic drugs, the need for accessible and cost-effective medication is urgent, and products derived from plants could offer a solution. For this review, we have focused on natural compounds that have shown anticonvulsant activity in in vivo models of epilepsy at relevant doses. In some cases, the effects have been confirmed by clinical data. The results of our search are summarized in tables according to their molecular targets. We have critically evaluated the data we present, identified the most promising therapeutic candidates, and discussed these in the text. Their perspectives are supported by both pharmacokinetic properties and potential interactions. This review is intended to serve as a basis for future research into epilepsy and related disorders.
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Affiliation(s)
- Milan Malaník
- Department of Natural Drugs, Faculty of Pharmacy, Masaryk University, Palackého 1946/1, 61200 Brno, Czech Republic; (A.S.); (K.Š.)
| | - Marie Čulenová
- Department of Natural Drugs, Faculty of Pharmacy, Masaryk University, Palackého 1946/1, 61200 Brno, Czech Republic; (A.S.); (K.Š.)
| | - Alice Sychrová
- Department of Natural Drugs, Faculty of Pharmacy, Masaryk University, Palackého 1946/1, 61200 Brno, Czech Republic; (A.S.); (K.Š.)
| | - Adrianna Skiba
- Department of Natural Products Chemistry, Faculty of Pharmacy, Medical University of Lublin, 1 Chodzki Str., 20-093 Lublin, Poland; (A.S.); (K.S.-W.)
| | - Krystyna Skalicka-Woźniak
- Department of Natural Products Chemistry, Faculty of Pharmacy, Medical University of Lublin, 1 Chodzki Str., 20-093 Lublin, Poland; (A.S.); (K.S.-W.)
| | - Karel Šmejkal
- Department of Natural Drugs, Faculty of Pharmacy, Masaryk University, Palackého 1946/1, 61200 Brno, Czech Republic; (A.S.); (K.Š.)
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Skiba A, Kozioł E, Luca SV, Budzyńska B, Podlasz P, Van Der Ent W, Shojaeinia E, Esguerra CV, Nour M, Marcourt L, Wolfender JL, Skalicka-Woźniak K. Evaluation of the Antiseizure Activity of Endemic Plant Halfordia kendack Guillaumin and Its Main Constituent, Halfordin, on a Zebrafish Pentylenetetrazole (PTZ)-Induced Seizure Model. Int J Mol Sci 2023; 24:ijms24032598. [PMID: 36768918 PMCID: PMC9916433 DOI: 10.3390/ijms24032598] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
Epilepsy is a neurological disease that burdens over 50 million people worldwide. Despite the considerable number of available antiseizure medications, it is estimated that around 30% of patients still do not respond to available treatment. Herbal medicines represent a promising source of new antiseizure drugs. This study aimed to identify new drug lead candidates with antiseizure activity from endemic plants of New Caledonia. The crude methanolic leaf extract of Halfordia kendack Guillaumin (Rutaceae) significantly decreased (75 μg/mL and 100 μg/mL) seizure-like behaviour compared to sodium valproate in a zebrafish pentylenetetrazole (PTZ)-induced acute seizure model. The main coumarin compound, halfordin, was subsequently isolated by liquid-liquid chromatography and subjected to locomotor, local field potential (LFP), and gene expression assays. Halfordin (20 μM) significantly decreased convulsive-like behaviour in the locomotor and LFP analysis (by 41.4% and 60%, respectively) and significantly modulated galn, and penka gene expression.
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Affiliation(s)
- Adrianna Skiba
- Department of Natural Products Chemistry, Medical University of Lublin, 20-093 Lublin, Poland
- Correspondence: (A.S.); (K.S.-W.); Tel.: +48-81448-7093 (A.S.); +48-81448-7089 (K.S.-W.)
| | - Ewelina Kozioł
- Department of Natural Products Chemistry, Medical University of Lublin, 20-093 Lublin, Poland
| | - Simon Vlad Luca
- Biothermodynamics, TUM School of Life Sciences, Technical University of Munich, 85354 Freising, Germany
- Department of Pharmacognosy, Grigore T. Popa University of Medicine and Pharmacy Iasi, 700115 Iasi, Romania
| | - Barbara Budzyńska
- Independent Laboratory of Behavioral Studies, Medical University, Chodzki 4a, 20-090 Lublin, Poland
| | - Piotr Podlasz
- Department of Pathophysiology, Forensic Veterinary and Administration, Faculty of Veterinary Medicine, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Wietske Van Der Ent
- Chemical Neuroscience Group, Centre for Molecular Medicine Norway (NCMM), University of Oslo, Forskningsparken, Gaustadalleén 21, 0349 Oslo, Norway
| | - Elham Shojaeinia
- Chemical Neuroscience Group, Centre for Molecular Medicine Norway (NCMM), University of Oslo, Forskningsparken, Gaustadalleén 21, 0349 Oslo, Norway
| | - Camila V. Esguerra
- Chemical Neuroscience Group, Centre for Molecular Medicine Norway (NCMM), University of Oslo, Forskningsparken, Gaustadalleén 21, 0349 Oslo, Norway
- Department of Pharmacy, Section for Pharmacology and Pharmaceutical Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, Blindern, P.O. Box 1068, 0316 Oslo, Norway
| | - Mohammed Nour
- Institut des Sciences Exactes et Appliquées (ISEA)-EA 4243, France University of New Caledonia, 98851 Nouméa, New Caledonia, France
| | - Laurence Marcourt
- School of Pharmaceutical Sciences, University of Geneva, CMU, Rue Michel Servet 1, 1211 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Rue Michel Servet 1, 1211 Geneva, Switzerland
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, CMU, Rue Michel Servet 1, 1211 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Rue Michel Servet 1, 1211 Geneva, Switzerland
| | - Krystyna Skalicka-Woźniak
- Department of Natural Products Chemistry, Medical University of Lublin, 20-093 Lublin, Poland
- Correspondence: (A.S.); (K.S.-W.); Tel.: +48-81448-7093 (A.S.); +48-81448-7089 (K.S.-W.)
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Łuszczki JJ, Bojar H, Góralczyk A, Skalicka-Woźniak K. Antiseizure Effects of Scoparone, Borneol and Their Impact on the Anticonvulsant Potency of Four Classic Antiseizure Medications in the Mouse MES Model-An Isobolographic Transformation. Int J Mol Sci 2023; 24:ijms24021395. [PMID: 36674911 PMCID: PMC9867083 DOI: 10.3390/ijms24021395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 01/13/2023] Open
Abstract
Numerous botanical drugs containing coumarins and terpenes are used in ethnomedicine all over the world for their various therapeutic properties, especially those affecting the CNS system. The treatment of epilepsy is based on antiseizure medications (ASMs), although novel strategies using naturally occurring substances with confirmed antiseizure properties are being developed nowadays. The aim of this study was to determine the anticonvulsant profiles of scoparone (a simple coumarin) and borneol (a bicyclic monoterpenoid) when administered separately and in combination, as well as their impact on the antiseizure effects of four classic ASMs (carbamazepine, phenytoin, phenobarbital and valproate) in the mouse model of maximal electroshock-induced (MES) tonic-clonic seizures. MES-induced seizures were evoked in mice receiving the respective doses of the tested natural compounds and classic ASMs (when applied alone or in combinations). Interactions for two-drug and three-drug mixtures were assessed by means of isobolographic transformation of data. Polygonograms were used to illustrate the types of interactions occurring among drugs. The total brain content of ASMs was measured in mice receiving the respective drug treatments with fluorescent polarization immunoassay. Scoparone and borneol, when administered alone, exerted anticonvulsant properties in the mouse MES model. The two-drug mixtures of scoparone with valproate, borneol with phenobarbital and borneol with valproate produced synergistic interactions in the mouse MES model, while the remaining tested two-drug mixtures produced additivity. The three-drug mixtures of scoparone + borneol with valproate and phenobarbital produced synergistic interactions in the mouse MES model. Verification of total brain concentrations of valproate and phenobarbital revealed that borneol elevated the total brain concentrations of both ASMs, while scoparone did not affect the brain content of these ASMs in mice. The synergistic interaction of scoparone with valproate observed in the mouse MES model is pharmacodynamic in nature. Borneol elevated the brain concentrations of the tested ASMs, contributing to the pharmacokinetic nature of the observed synergistic interactions with valproate and phenobarbital in the mouse MES model.
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Affiliation(s)
- Jarogniew J. Łuszczki
- Department of Occupational Medicine, Medical University of Lublin, 20-090 Lublin, Poland
- Correspondence: ; Tel.: +48-81-448-6500; Fax: +48-81-448-6501
| | - Hubert Bojar
- Department of Toxicology and Food Safety, Institute of Rural Health, 20-090 Lublin, Poland
| | - Agnieszka Góralczyk
- Department of Occupational Medicine, Medical University of Lublin, 20-090 Lublin, Poland
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Zagaja M, Zagaja A, Szala-Rycaj J, Szewczyk A, Lemieszek MK, Raszewski G, Andres-Mach M. Influence of Umbelliferone on the Anticonvulsant and Neuroprotective Activity of Selected Antiepileptic Drugs: An In Vivo and In Vitro Study. Int J Mol Sci 2022; 23:ijms23073492. [PMID: 35408852 PMCID: PMC8999126 DOI: 10.3390/ijms23073492] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 03/17/2022] [Accepted: 03/21/2022] [Indexed: 02/04/2023] Open
Abstract
Umbelliferone (7-hydroxycoumarin; UMB) is a coumarin with many biological properties, including antiepileptic activity. This study evaluated the effect of UMB on the ability of classical and novel antiepileptic drugs (e.g., lacosamide (LCM), levetiracetam (LEV), phenobarbital (PB) and valproate (VPA)) to prevent seizures evoked by the 6-Hz corneal-stimulation-induced seizure model. The study also evaluated the influence of this coumarin on the neuroprotective properties of these drugs in two in vitro models of neurodegeneration, including trophic stress and excitotoxicity. The results indicate that UMB (100 mg/kg, i.p.) significantly enhanced the anticonvulsant action of PB (p < 0.01) and VPA (p < 0.05), but not that of LCM orLEV, in the 6-Hz test. Whether alone or in combination with other anticonvulsant drugs (at their ED50 values from the 6-Hz test), UMB (100 mg/kg) did not affect motor coordination; skeletal muscular strength and long-term memory, as determined in the chimney; grip strength; or passive avoidance tests, respectively. Pharmacokinetic characterization revealed that UMB had no impact on total brain concentrations of PB or VPA in mice. The in vitro study indicated that UMB has neuroprotective properties. Administration of UMB (1 µg/mL), together with antiepileptic drugs, mitigated their negative impact on neuronal viability. Under trophic stress (serum deprivation) conditions, UMB enhanced the neurotrophic abilities of all the drugs used. Moreover, this coumarin statistically enhanced the neuroprotective effects of PB (p < 0.05) and VPA (p < 0.001) in the excitotoxicity model of neurodegeneration. The obtained results clearly indicate a positive effect of UMB on the anticonvulsant and neuroprotective properties of the selected drugs.
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Affiliation(s)
- Mirosław Zagaja
- Isobolographic Analysis Laboratory, Institute of Rural Health, Jaczewskiego 2, 20-090 Lublin, Poland; (J.S.-R.); (A.S.); (M.A.-M.)
- Correspondence: (M.Z.); (A.Z.); Tel.: +48-81-718-4549 (M.Z.); +48-81-448-6850 (A.Z.)
| | - Anna Zagaja
- Chair and Department of Humanities and Social Medicine, Medical University of Lublin, Chodźki 7, 20-090 Lublin, Poland
- Correspondence: (M.Z.); (A.Z.); Tel.: +48-81-718-4549 (M.Z.); +48-81-448-6850 (A.Z.)
| | - Joanna Szala-Rycaj
- Isobolographic Analysis Laboratory, Institute of Rural Health, Jaczewskiego 2, 20-090 Lublin, Poland; (J.S.-R.); (A.S.); (M.A.-M.)
| | - Aleksandra Szewczyk
- Isobolographic Analysis Laboratory, Institute of Rural Health, Jaczewskiego 2, 20-090 Lublin, Poland; (J.S.-R.); (A.S.); (M.A.-M.)
| | - Marta Kinga Lemieszek
- Department of Medical Biology, Institute of Rural Health, Jaczewskiego 2, 20-090 Lublin, Poland;
| | - Grzegorz Raszewski
- Department of Toxicology and Food Protection, Institute of Rural Health, Jaczewskiego 2, 20-950 Lublin, Poland;
| | - Marta Andres-Mach
- Isobolographic Analysis Laboratory, Institute of Rural Health, Jaczewskiego 2, 20-090 Lublin, Poland; (J.S.-R.); (A.S.); (M.A.-M.)
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Kowalczyk J, Nakos-Bimpos M, Polissidis A, Dalla C, Kokras N, Skalicka-Woźniak K, Budzyńska B. Imperatorin Influences Depressive-like Behaviors: A Preclinical Study on Behavioral and Neurochemical Sex Differences. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27041179. [PMID: 35208969 PMCID: PMC8875245 DOI: 10.3390/molecules27041179] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/24/2022] [Accepted: 02/04/2022] [Indexed: 11/22/2022]
Abstract
Imperatorin, a naturally derived furanocoumarin, exerts promising neuropharmacological properties. Therefore, it might be applicable in the treatment of brain diseases such as depression. In the present project, we aimed to investigate the sex-dependent effects of imperatorin (1, 5, and 10 mg/kg) on behavior and neurochemistry associated with antidepressant effects. The depressive-like behaviors of male and female Swiss mice were investigated in a forced swim test (FST). Subsequently, High-Performance Liquid Chromatography (HPLC) was used to evaluate the level of serotonin, its metabolite, 5-HIAA, and noradrenaline, in mouse brains. The study revealed that only males responded to imperatorin (1 and 5 mg/kg) treatment and caused an antidepressant effect, such as with respect to depressive-like behaviors, lowering immobility time and increasing immobility latency. The HPLC analysis demonstrated that serotonin levels in the prefrontal cortex of females decreased with the middle dose of imperatorin (5 mg/kg), while in the male prefrontal cortex, the lower dose (1 mg/kg) boosted serotonin levels. There were no evident changes observed with respect to noradrenaline and serotonin metabolite levels in the male hippocampus. To conclude, we propose that imperatorin has antidepressant potential, seemingly only in males, influencing brain serotonin level, but the direct mechanism of action requires further investigation.
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Affiliation(s)
- Joanna Kowalczyk
- Independent Laboratory of Behavioral Studies, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland; (J.K.); (B.B.)
| | - Modestos Nakos-Bimpos
- Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece; (M.N.-B.); (A.P.)
| | - Alexia Polissidis
- Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece; (M.N.-B.); (A.P.)
| | - Christina Dalla
- Department of Pharmacology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (C.D.); (N.K.)
| | - Nikolaos Kokras
- Department of Pharmacology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (C.D.); (N.K.)
- First Department of Psychiatry, Eginition Hospital, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Krystyna Skalicka-Woźniak
- Department of Natural Products Chemistry, Medical University of Lublin, 1 Chodźki Street, 20-093 Lublin, Poland
- Correspondence:
| | - Barbara Budzyńska
- Independent Laboratory of Behavioral Studies, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland; (J.K.); (B.B.)
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Potential Anticancer Activity of the Furanocoumarin Derivative Xanthotoxin Isolated from Ammi majus L. Fruits: In Vitro and In Silico Studies. Molecules 2022; 27:molecules27030943. [PMID: 35164207 PMCID: PMC8839012 DOI: 10.3390/molecules27030943] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/22/2022] [Accepted: 01/25/2022] [Indexed: 01/27/2023] Open
Abstract
Ammi majus L., an indigenous plant in Egypt, is widely used in traditional medicine due to its various pharmacological properties. We aimed to evaluate the anticancer properties of Ammi majus fruit methanol extract (AME) against liver cancer and to elucidate the active compound(s) and their mechanisms of action. Three fractions from AME (Hexane, CH2Cl2, and EtOAc) were tested for their anticancer activities against HepG2 cell line in vitro (cytotoxicity assay, cell cycle analysis, annexin V-FITC apoptosis assay, and autophagy efflux assay) and in silico (molecular docking). Among the AME fractions, CH2Cl2 fraction revealed the most potent cytotoxic activity. The structures of compounds isolated from the CH2Cl2 fraction were elucidated using 1H- and 13C-NMR and found that Compound 1 (xanthotoxin) has the strongest cytotoxic activity against HepG2 cells (IC50 6.9 ± 1.07 µg/mL). Treating HepG2 cells with 6.9 µg/mL of xanthotoxin induced significant changes in the DNA-cell cycle (increases in apoptotic pre-G1 and G2/M phases and a decrease in the S-phase). Xanthotoxin induced significant increase in Annexin-V-positive HepG2 cells both at the early and late stages of apoptosis, as well as a significant decrease in autophagic flux in cancer compared with control cells. In silico analysis of xanthotoxin against the DNA-relaxing enzyme topoisomease II (PDB code: 3QX3) revealed strong interaction with the key amino acid Asp479 in a similar fashion to that of the co-crystallized inhibitor (etoposide), implying that xanthotoxin has a potential of a broad-spectrum anticancer activity. Our results indicate that xanthotoxin exhibits anticancer effects with good biocompatibility toward normal human cells. Further studies are needed to optimize its antitumor efficacy, toxicity, solubility, and pharmacokinetics.
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Comparative Antiseizure Analysis of Diverse Natural Coumarin Derivatives in Zebrafish. Int J Mol Sci 2021; 22:ijms222111420. [PMID: 34768849 PMCID: PMC8584229 DOI: 10.3390/ijms222111420] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/16/2021] [Accepted: 10/19/2021] [Indexed: 12/31/2022] Open
Abstract
Coumarins are a well-known group of plant secondary metabolites with various pharmacological activities, including antiseizure activity. In the search for new antiseizure drugs (ASDs) to treat epilepsy, it is yet unclear which types of coumarins are particularly interesting as a systematic analysis has not been reported. The current study performed behavioral antiseizure activity screening of 18 different coumarin derivatives in the larval zebrafish pentylenetetrazole (PTZ) model using locomotor measurements. Activity was confirmed for seven compounds, which lowered seizure-like behavior as follows: oxypeucedanin 38%, oxypeucedanin hydrate 74%, notopterol 54%, nodakenetin 29%, hyuganin C 35%, daphnoretin 65%, and pimpinellin 60%. These coumarins, together with nodakenin, underwent further antiepileptiform analysis by local field potential recordings from the zebrafish opticum tectum (midbrain). All of them, except for nodakenetin, showed pronounced antiepileptiform activity, decreasing PTZ-induced elevation in power spectral density (PSD) by 83-89% for oxypeucedanin, oxypeucedanin hydrate, and notopterol, 77% for nodakenin, 26% for nodakenetin, 65% for hyuganin C, 88% for daphnoretin, and 81% for pimpinellin. These data demonstrate the potential of diverse coumarin scaffolds for ASD discovery. Finally, the structural differences between active and inactive coumarins were investigated in silico for oxypeucedanin hydrate and byacangelicin for their interaction with GABA-transaminase, a hypothetical target.
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Zagaja M, Bryda J, Szewczyk A, Szala-Rycaj J, Łuszczki JJ, Walczak M, Kuś K, Andres-Mach M. Xanthotoxin enhances the anticonvulsant potency of levetiracetam and valproate in the 6-Hz corneal stimulation model in mice. Fundam Clin Pharmacol 2021; 36:133-142. [PMID: 34216038 DOI: 10.1111/fcp.12713] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 06/28/2021] [Indexed: 01/16/2023]
Abstract
Xanthotoxin (8-methoxypsoralen; XANT) is a furanocoumarin that has many biological properties, including antiepileptic activity. This study evaluated the effect of XANT on the ability of classical and novel antiepileptic drugs to prevent seizures evoked by the 6-Hz corneal stimulation-induced seizure model, which is thought to be an experimental model of psychomotor (limbic) seizures in humans. XANT (50 mg/kg, administered i.p.) significantly potentiated the anticonvulsant activity of levetiracetam and valproate, decreasing their median effective dose (ED50 ) values from 19.37 to 2.83 mg/kg (P < 0.01) for levetiracetam and from 92.89 to 44.44 mg/kg (P < 0.05) for valproate. Neither XANT (50 mg/kg) alone nor its combination with the anticonvulsant drugs (at their ED50 values from the 6-Hz test) affected motor coordination; skeletal muscular strength and long-term memory, as determined in the chimney; and grip strength and passive avoidance tests, respectively. Measurement of total brain antiepileptic drug concentrations revealed that XANT (50 mg/kg) had no impact on levetiracetam total brain concentrations, indicating the pharmacodynamic nature of interaction between these antiepileptic drugs in the mouse 6-Hz model. However, XANT (50 mg/kg, i.p.) significantly increased total brain concentrations of valproate (P < 0.01), indicating the pharmacokinetic nature of interactions between drugs. XANT in combination with levetiracetam exerts beneficial anticonvulsant pharmacodynamic interactions in the 6-Hz mouse psychomotor seizure model.
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Affiliation(s)
- Mirosław Zagaja
- Isobolographic Analysis Laboratory, Institute of Rural Health, Lublin, Poland
| | - Jarosław Bryda
- Isobolographic Analysis Laboratory, Institute of Rural Health, Lublin, Poland.,Department of Veterinary Hygiene, Voivodeship Veterinary Inspectorate, Lublin, Poland
| | - Aleksandra Szewczyk
- Isobolographic Analysis Laboratory, Institute of Rural Health, Lublin, Poland
| | - Joanna Szala-Rycaj
- Isobolographic Analysis Laboratory, Institute of Rural Health, Lublin, Poland
| | - Jarogniew J Łuszczki
- Isobolographic Analysis Laboratory, Institute of Rural Health, Lublin, Poland.,Department of Pathophysiology, Medical University, Lublin, Poland
| | - Maria Walczak
- Chair and Department of Toxicology, Faculty of Pharmacy, Jagiellonian University Medical College, Cracow, Poland
| | - Kamil Kuś
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, Cracow, Poland
| | - Marta Andres-Mach
- Isobolographic Analysis Laboratory, Institute of Rural Health, Lublin, Poland
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Bruni R, Barreca D, Protti M, Brighenti V, Righetti L, Anceschi L, Mercolini L, Benvenuti S, Gattuso G, Pellati F. Botanical Sources, Chemistry, Analysis, and Biological Activity of Furanocoumarins of Pharmaceutical Interest. Molecules 2019; 24:E2163. [PMID: 31181737 PMCID: PMC6600687 DOI: 10.3390/molecules24112163] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 06/04/2019] [Accepted: 06/06/2019] [Indexed: 12/12/2022] Open
Abstract
The aim of this work is to provide a critical review of plant furanocoumarins from different points of view, including their chemistry and biosynthetic pathways to their extraction, analysis, and synthesis, to the main biological activities found for these active compounds, in order to highlight their potential within pharmaceutical science. The limits and the possible improvements needed for research involving these molecules are also highlighted and discussed.
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Affiliation(s)
- Renato Bruni
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
| | - Davide Barreca
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Michele Protti
- Department of Pharmacy and Biotechnology (FaBiT), Alma Mater Studiorum, University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy.
| | - Virginia Brighenti
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy.
| | - Laura Righetti
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
| | - Lisa Anceschi
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy.
| | - Laura Mercolini
- Department of Pharmacy and Biotechnology (FaBiT), Alma Mater Studiorum, University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy.
| | - Stefania Benvenuti
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy.
| | - Giuseppe Gattuso
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Federica Pellati
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy.
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12
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Bryda J, Zagaja M, Szewczyk A, Andres-Mach M. Coumarins as potential supportive medication for the treatment of epilepsy. Acta Neurobiol Exp (Wars) 2019. [DOI: 10.21307/ane-2019-011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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13
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Imperatorin ameliorates lipopolysaccharide induced memory deficit by mitigating proinflammatory cytokines, oxidative stress and modulating brain-derived neurotropic factor. Cytokine 2018; 110:78-86. [DOI: 10.1016/j.cyto.2018.04.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 03/21/2018] [Accepted: 04/16/2018] [Indexed: 01/08/2023]
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14
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Liang WH, Chang TW, Charng YC. Effects of drying methods on contents of bioactive compounds and antioxidant activities of Angelica dahurica. Food Sci Biotechnol 2018; 27:1085-1092. [PMID: 30263838 PMCID: PMC6085254 DOI: 10.1007/s10068-018-0359-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 02/20/2018] [Accepted: 03/14/2018] [Indexed: 11/28/2022] Open
Abstract
Baizhi (Angelica dahurica) has been widely used as a traditional Chinese herbal medicine, functional food and cosmetic product ingredient, mostly because of the high furanocoumarin compounds in roots. Because the fresh root is perishable, drying techniques are needed to maintain a higher-quality product. Freeze-drying is the best method but energy-consuming and costly. The aim of this study was to analyze the quality (antioxidant and furanocoumarin content) of Baizhi roots after freeze-drying (the control) and in-the-shade, 40 and 70 °C drying. Antioxidant activity was revealed by 2,2-diphenyl-1-picrylhydrazyl and Fe2+ chelating assay, and the content of six furanocoumarin compounds, including xanthotoxin, bergapten, oxypeucedanin, imperatorin, phellopterin and isoimperatorin, was analyzed by liquid chromatography. Antioxidant activity was greater in roots with in-the-shade, 40 and 70 °C drying than freeze-drying. The furanocoumarin content pattern was similar with 70 °C drying and freeze-drying. A. dahurica roots dried at 70 °C may be an alternative method for maintaining high quality.
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Affiliation(s)
- Wei-Hong Liang
- Department of Agronomy, National Taiwan University, No. 1 Sec. 4 Roosevelt Rd, Taipei, Taiwan, Republic of China
| | - Tung-Wu Chang
- Hualien District Agricultural Research and Extension Station, Council of Agriculture, Executive Yuan, Hualien, Taiwan, Republic of China
| | - Yuh-Chyang Charng
- Department of Agronomy, National Taiwan University, No. 1 Sec. 4 Roosevelt Rd, Taipei, Taiwan, Republic of China
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15
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Liang WH, Chang TW, Charng YC. Influence of harvest stage on the pharmacological effect of Angelica dahurica. BOTANICAL STUDIES 2018; 59:14. [PMID: 29766316 PMCID: PMC5953908 DOI: 10.1186/s40529-018-0230-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 05/04/2018] [Indexed: 05/25/2023]
Abstract
BACKGROUND Baizhi (Angelica dahurica) has been widely used as a traditional Chinese herbal medicine, functional food and cosmetic product ingredient, mostly because of the high furanocoumarin compounds in roots. The cropping system of Baizhi with its unique summer dormancy feature, is easily affected by the transition of its growth stages. The aim of this study was to analyze the quantity (size, form and dry weight [DW]) and quality (antioxidant and furanocoumarin content) of taproot and lateral root from three growth stages of Baizhi; vegetative (V-stage), summer dormancy (S-stage) and bolting stage (B-stage). RESULTS Root length and diameter were lower at V-stage than the other two stages, and S-stage had higher lateral root to total root ratio. However, the highest root DW was observed at S-stage. Antioxidant activity was revealed by 2,2-diphenyl-L-picrylhydrazyl and Fe2+ chelating assay, and the content of six furanocoumarin compounds, including xanthotoxin, bergapten, oxypeucedanin, imperatorin, phellopterin and isoimperatorin, was analyzed by liquid chromatography. Although the antioxidant activity was less at S-stage than the other stages, furanocoumarin contents showed little variation. CONCLUSION Considering the high DW and stable furanocoumarin composition, S-stage is the best harvest stage than the other stages because of its richer total pharmacological content.
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Affiliation(s)
- Wei-Hong Liang
- Department of Agronomy, National Taiwan University, Taipei, Taiwan Republic of China
| | - Tung-Wu Chang
- Hualien District Agricultural Research and Extension Station, Council of Agriculture, Executive Yuan, Hualien, Taiwan Republic of China
| | - Yuh-Chyang Charng
- Department of Agronomy, National Taiwan University, Taipei, Taiwan Republic of China
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16
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A Metabolism-Based Synergy for Total Coumarin Extract of Radix Angelicae Dahuricae and Ligustrazine on Migraine Treatment in Rats. Molecules 2018; 23:molecules23051004. [PMID: 29693578 PMCID: PMC6102536 DOI: 10.3390/molecules23051004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/19/2018] [Accepted: 04/21/2018] [Indexed: 12/14/2022] Open
Abstract
Radix Angelicae dahuricae, containing coumarins, which might affect cytochrome P450 enzyme (CYP450) activity, has been co-administered with ligustrazine, a substrate of CYP450s, for the clinical treatment of migraine. However, whether a pharmacokinetic-based synergy exists between Radix Angelicae dahuricae and ligustrazine is still unknown. In this study, the total coumarin extract (TCE) of Radix Angelicae dahuricae (50 mg/kg, orally) reinforced the anti-migraine activity of ligustrazine by declining head scratching, plasma calcitonin gene-related peptide, and serum nitric oxide, as well as increasing plasma endothelin levels in rats (p < 0.05). Moreover, the pharmacokinetic study reflected that TCE potentiated the area under the concentration⁻time curve of ligustrazine and prolonged its mean retention time in rats (p < 0.05). Besides, the IC50 for TCE, imperatorin and isoimperatorin inhibiting ligustrazine metabolism were 5.0 ± 1.02, 1.35 ± 0.46, 4.81 ± 1.14 µg/mL in human liver microsomes, and 13.69 ± 1.11, 1.19 ± 1.09, 1.69 ± 1.17 µg/mL in rat liver microsomes, respectively. Moreover, imperatorin and isoimperatorin were CYP450s inhibitors with IC50 < 10 µM for CYP1A2, 2C9, 2D6, and 3A4. Therefore, this study concluded that Radix Angelicae dahuricae could increase ligustrazine plasma concentration and then reinforce its pharmacological effect by inhibiting its metabolism through interference with CYP450s. This could be one mechanism for the synergy between Radix Angelicae dahuricae and ligustrazine on migraine treatment.
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17
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Ngo L, Tran P, Ham SH, Cho JH, Cho HY, Lee YB. Simultaneous determination of imperatorin and its metabolite xanthotoxol in rat plasma and urine by LC–MS/MS and its application to pharmacokinetic studies. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1044-1045:30-38. [DOI: 10.1016/j.jchromb.2016.12.037] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 10/28/2016] [Accepted: 12/21/2016] [Indexed: 01/02/2023]
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18
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Zagaja M, Andres-Mach M, Patrzylas P, Pyrka D, Szpringer M, Florek-Łuszczki M, Żółkowska D, Skalicka-Woźniak K, Łuszczki JJ. Influence of xanthotoxin (8-methoxypsoralen) on the anticonvulsant activity of various novel antiepileptic drugs against maximal electroshock-induced seizures in mice. Fitoterapia 2016; 115:86-91. [DOI: 10.1016/j.fitote.2016.09.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 09/26/2016] [Accepted: 09/30/2016] [Indexed: 01/25/2023]
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19
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Kozioł E, Skalicka-Woźniak K. Imperatorin-pharmacological meaning and analytical clues: profound investigation. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2016; 15:627-649. [PMID: 27453708 PMCID: PMC4939159 DOI: 10.1007/s11101-016-9456-2] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 02/13/2016] [Indexed: 05/09/2023]
Abstract
Imperatorin, a furanocoumarin derivative, has many documented pharmacological properties which make it a candidate for possible drug development. In this review, the activity on the central nervous system, the anticancer and antiviral properties and the influence on the cardiovascular system are described. The aim of this review is also to present an overview of the techniques used for the analysis, isolation, and separation of imperatorin from plant material from the practical perspective.
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Affiliation(s)
- Ewelina Kozioł
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, 1 Chodzki Str., 20-093 Lublin, Poland
| | - Krystyna Skalicka-Woźniak
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, 1 Chodzki Str., 20-093 Lublin, Poland
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20
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ZHENG YIMEI, LU AMYXIAOXU, SHEN JAMESZHENG, KWOK AMYHOYAN, HO WINGSHING. Imperatorin exhibits anticancer activities in human colon cancer cells via the caspase cascade. Oncol Rep 2016; 35:1995-2002. [DOI: 10.3892/or.2016.4586] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 10/21/2015] [Indexed: 11/05/2022] Open
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Skalicka-Woźniak K, Orhan IE, Cordell GA, Nabavi SM, Budzyńska B. Implication of coumarins towards central nervous system disorders. Pharmacol Res 2015; 103:188-203. [PMID: 26657416 DOI: 10.1016/j.phrs.2015.11.023] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 11/28/2015] [Accepted: 11/29/2015] [Indexed: 01/11/2023]
Abstract
Coumarins are widely distributed, plant-derived, 2H-1-benzopyran-2-one derivatives which have attracted intense interest in recent years as a result of their diverse and potent pharmacological properties. Particularly, their effects on the central nervous system (CNS) have been established. The present review discusses the most important pharmacological effects of natural and synthetic coumarins on the CNS, including their interactions with benzodiazepine receptors, their dopaminergic and serotonergic affinity, and their ability to inhibit cholinesterases and monoamine oxidases. The structure-activity relationships pertaining to these effects are also discussed. This review posits that natural or synthetic coumarins have the potential for development in the therapy of psychiatric and neurodegenerative disorders, including Alzheimer's and Parkinson's diseases, schizophrenia, anxiety, epilepsy, and depression.
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Affiliation(s)
- Krystyna Skalicka-Woźniak
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, 1 Chodzki Str., 20-093 Lublin, Poland.
| | - Ilkay Erdogan Orhan
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey
| | - Geoffrey A Cordell
- Natural Products Inc., Evanston, IL 60203, USA; Department of Pharmaceutics, College of Pharmacy, University of FL, Gainesville, FL 32610, USA
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Barbara Budzyńska
- Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Poland
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22
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Zagaja M, Pyrka D, Skalicka-Wozniak K, Glowniak K, Florek-Luszczki M, Glensk M, Luszczki JJ. Effect of xanthotoxin (8-methoxypsoralen) on the anticonvulsant activity of classical antiepileptic drugs against maximal electroshock-induced seizures in mice. Fitoterapia 2015; 105:1-6. [PMID: 26026802 DOI: 10.1016/j.fitote.2015.05.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Revised: 05/25/2015] [Accepted: 05/26/2015] [Indexed: 01/16/2023]
Abstract
The effects of xanthotoxin (8-methoxypsoralen) on the anticonvulsant activity of four classical antiepileptic drugs (carbamazepine, phenobarbital, phenytoin and valproate) were studied in the mouse maximal electroshock seizure model. Tonic hind limb extension (seizure activity) was evoked in adult male albino Swiss mice by a current (25 mA, 500 V, 50 Hz, 0.2 s stimulus duration) delivered via auricular electrodes. Total brain concentrations of antiepileptic drugs were measured by fluorescence polarization immunoassay to ascertain any pharmacokinetic contribution to the observed anticonvulsant effects. Results indicate that xanthotoxin (50 and 100 mg/kg, i.p.) significantly potentiated the anticonvulsant activity of carbamazepine against maximal electroshock-induced seizures (P<0.05 and P<0.001, respectively). Similarly, xanthotoxin (100 mg/kg, i.p.) markedly enhanced the anticonvulsant action of valproate in the maximal electroshock seizure test (P<0.001). In contrast, xanthotoxin (100 mg/kg, i.p.) did not affect the protective action of phenobarbital and phenytoin against maximal electroshock-induced seizures in mice. Moreover, xanthotoxin (100 mg/kg, i.p.) significantly increased total brain concentrations of carbamazepine (P<0.001) and valproate (P<0.05), but not those of phenytoin and phenobarbital, indicating pharmacokinetic nature of interactions between drugs. In conclusion, the combinations of xanthotoxin with carbamazepine and valproate, despite their beneficial effects in terms of seizure suppression in mice, were probably due to a pharmacokinetic increase in total brain concentrations of these antiepileptic drugs in experimental animals.
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Affiliation(s)
- Miroslaw Zagaja
- Isobolographic Analysis Laboratory, Institute of Rural Health, Jaczewskiego 2, PL 20-950 Lublin, Poland
| | - Daniel Pyrka
- Department of Pathophysiology, Medical University, Ceramiczna 1, PL 20-150 Lublin, Poland
| | - Krystyna Skalicka-Wozniak
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University, Chodzki 1, PL 20-093 Lublin, Poland
| | - Kazimierz Glowniak
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University, Chodzki 1, PL 20-093 Lublin, Poland
| | | | - Michał Glensk
- Department of Pharmacognosy, Medical University, Nankiera Square 1, PL 50-140 Wroclaw, Poland
| | - Jarogniew J Luszczki
- Isobolographic Analysis Laboratory, Institute of Rural Health, Jaczewskiego 2, PL 20-950 Lublin, Poland; Department of Pathophysiology, Medical University, Ceramiczna 1, PL 20-150 Lublin, Poland.
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Inhibitory effects of imperatorin on voltage-gated K+ channels and ATP-sensitive K+ channels. Pharmacol Rep 2015; 67:134-9. [DOI: 10.1016/j.pharep.2014.08.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 08/13/2014] [Accepted: 08/13/2014] [Indexed: 11/24/2022]
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Bądziul D, Jakubowicz-Gil J, Paduch R, Głowniak K, Gawron A. Combined treatment with quercetin and imperatorin as a potent strategy for killing HeLa and Hep-2 cells. Mol Cell Biochem 2014; 392:213-27. [PMID: 24682729 PMCID: PMC4148393 DOI: 10.1007/s11010-014-2032-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 03/14/2014] [Indexed: 12/29/2022]
Abstract
The aim of the present study was to assess the effect of quercetin and imperatorin administered separately and in combination on apoptosis and autophagy induction in human cervical carcinoma HeLa cells and laryngeal carcinoma Hep-2 cells cultured in vitro. Conducted MTT measurements proved that quercetin and imperatorin displayed a strong antiproliferative activity manifested in markedly reduction of HeLa and Hep-2 cells viability as a result of treatment with 50 μM of each compound. Further cell staining assays revealed that concentration mentioned above generated the highest percentage of apoptotic cells especially in the case of application of both drugs for 48 h. Simultaneous quercetin and imperatorin administration induced apoptosis remarkably stronger than treatment with single drugs. Experiments at the molecular level confirmed these results accompanied with the decreased Hsp27 and Hsp72 expression and, in addition, with increased caspases activity. Autophagy was not observed and no significant changes in the expression of beclin-1 were noticed. Additionally, experiments were performed on the above-mentioned cell lines with blocked Hsp27 and Hsp72 expression. In these cells, no significant changes in the sensitivity to apoptosis induction upon quercetin and imperatorin treatment were observed. The present study has provided evidence supporting the potential of the combination of quercetin and imperatorin drugs as a novel tool to be used in anticancer therapy. Our results have also demonstrated that blocking of the Hsp27 and Hsp72 gene expression is not enough to sensitize cancer cells to programmed cell death induction in HeLa and Hep-2 cells.
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Affiliation(s)
- Dorota Bądziul
- Department of Comparative Anatomy and Anthropology, Institute of Biology, Maria Curie-Skłodowska University, Akademicka 19, 20-033, Lublin, Poland,
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Abstract
AbstractThe aim of the present study was to determine the anticonvulsant effects of xanthotoxin (8-methoxypsoralen) isolated from the fruit of Pastinaca sativa L. This plant is used in European traditional medicine, including Poland. For this purpose, high-performance counter-current chromatography was used. Different solvent systems, mixtures of n-heptane, ethyl acetate, methanol and water were tested in order to calculate partition coefficients. Finally, a mixture with the ratio of 1:1:1:1 (v/v/v/v), giving the K value = 0.92, was chosen as optimal. A rapid scale-up process from analytical to preparative was developed. Evaluation of the anticonvulsant action of xanthotoxin in the mouse maximal electroshock-induced seizure test revealed that it produced a clear-cut anticonvulsant action in mice, and the experimentally-derived median effective doses (ED50 values) ranged between 219 and 252 mg kg−1.
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26
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Bądziul D, Jakubowicz-Gil J, Langner E, Rzeski W, Głowniak K, Gawron A. The effect of quercetin and imperatorin on programmed cell death induction in T98G cells in vitro. Pharmacol Rep 2014; 66:292-300. [PMID: 24911084 DOI: 10.1016/j.pharep.2013.10.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 09/29/2013] [Accepted: 10/31/2013] [Indexed: 01/07/2023]
Abstract
BACKGROUND High expression of HSP27 and HSP72 in glioma cells has been closely associated with chemoresistance and decreased sensitivity to programmed cell death induction. Therefore, it is important to devise therapies that effectively target invasive cancer cells by inducing cell death. The aim of our study was to assess the effect of quercetin and imperatorin applied separately and in combinations on the apoptosis and autophagy induction in human T98G cells cultured in vitro. METHODS Cell death induction was analyzed by the staining method. The Western blotting technique and fluorimetric measurements of activity were used to assess the expression of marker proteins of apoptosis and autophagy. The specific siRNA transfected method was used for blocking of the expression of HSP27 and HSP72 genes. RESULTS The experiments revealed the highest percentage of apoptotic cells after using a 50?M concentration of both compounds. Simultaneous quercetin and imperatorin administration induced apoptosis more effectively than incubation with single drugs. These results were accompanied with decreased HSP27 and HSP72 expression, and a high level of caspase-3 and caspase-9 activity. Autophagy was not observed. Additional experiments were performed on a cell line with blocked Hsp27 and Hsp72 expression and significant increase the sensitivity to apoptosis induction upon quercetin and imperatorin treatment was noticed. CONCLUSIONS The present study indicates that quercetin and imperatorin are potent apoptosis inducers, especially when they act synergistically, which may be a promising combination useful in glioma therapy. Our results also demonstrated that blocking the HSP27 and HSP72 gene expression might serve as a therapeutic target for the human brain cancer.
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Affiliation(s)
- Dorota Bądziul
- Department of Comparative Anatomy and Anthropology, Institute of Biology, Maria Curie-Sklodowska University, Lublin, Poland.
| | - Joanna Jakubowicz-Gil
- Department of Comparative Anatomy and Anthropology, Institute of Biology, Maria Curie-Sklodowska University, Lublin, Poland
| | - Ewa Langner
- Department of Medical Biology, Institute of Agricultural Medicine, Lublin, Poland
| | - Wojciech Rzeski
- Department of Medical Biology, Institute of Agricultural Medicine, Lublin, Poland; Department of Immunology and Virology, Institute of Microbiology and Biotechnology, Maria Curie-Sklodowska University, Poland
| | - Kazimierz Głowniak
- Department of Pharmacognosy with Medical Plant Unit, Medical University, Lublin, Poland
| | - Antoni Gawron
- Department of Comparative Anatomy and Anthropology, Institute of Biology, Maria Curie-Sklodowska University, Lublin, Poland
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Granica S, Kiss AK, Jarończyk M, Maurin JK, Mazurek AP, Czarnocki Z. Synthesis of imperatorin analogs and their evaluation as acetylcholinesterase and butyrylcholinesterase inhibitors. Arch Pharm (Weinheim) 2013; 346:775-82. [PMID: 24123207 DOI: 10.1002/ardp.201300259] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 08/09/2013] [Accepted: 08/12/2013] [Indexed: 11/06/2022]
Abstract
In this study, we synthesized several imperatorin analogs using imperatorin and xanthotoxin as substrates. The anti-cholinesterase activities of all compounds were evaluated in in vitro experiments according to the modified Ellman's method. For each synthesized compound, IC50 values for both enzymes were established. Galantamine hydrobromide was used as a positive control in the enzymatic experiments. All active compounds showed selectivity toward butyrylcholinesterase (BuChE) rather than acetylcholinesterase. The most active ones were 8-(3-methylbutoxy)-psoralen and 8-hexoxypsoralen with IC50 values for BuChE of around 16.5 and 16.4 µM, respectively. The results of our study may be considered as the beginning of a search for potential anti-Alzheimer's disease drugs based on the structure of natural furocoumarins.
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Affiliation(s)
- Sebastian Granica
- Faculty of Chemistry, University of Warsaw, Warsaw, Poland; Faculty of Pharmacy, Department of Pharmacognosy and Molecular Basis of Phytotherapy, Medical University of Warsaw, Warsaw, Poland
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Wu KC, Chen YH, Cheng KS, Kuo YH, Yang CT, Wong KL, Tu YK, Chan P, Leung YM. Suppression of voltage-gated Na(+) channels and neuronal excitability by imperatorin. Eur J Pharmacol 2013; 721:49-55. [PMID: 24113522 DOI: 10.1016/j.ejphar.2013.09.056] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2013] [Revised: 09/07/2013] [Accepted: 09/22/2013] [Indexed: 11/24/2022]
Abstract
Imperatorin is a naturally occurring furocoumarin compound isolated from plants such as Angelica archangelica and Cnidium monnieri. It has multiple pharmacological effects including anticonvulsant effects. Here we determined the effects of imperatorin on voltage-gated Na(+) channels (VGSC) using whole-cell patch clamp techniques in differentiated neuronal NG108-15 cells. We showed that imperatorin inhibited VGSC; such inhibition did not show state-dependence. Imperatorin caused a left shift in the steady-state inactivation curve without affecting activation gating. The inhibition of VGSC by imperatorin displayed a mild frequency-dependence. Imperatorin was also shown to inhibit VGSC and action potential amplitude without affecting voltage-gated K(+) channels in rat hippocampal CA1 neurons. In conclusion, our results suggest that imperatorin dampens neuronal excitability by inhibiting VGSC.
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Affiliation(s)
- King-Chuen Wu
- Department of Anesthesiology, Eda-Hospital, I-Shou University, Kaohsiung, Taiwan
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Luszczki JJ, Plech T, Wujec M. Influence of 5-(3-chlorophenyl)-4-(4-methylphenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione on the anticonvulsant action of 4 classical antiepileptic drugs in the mouse maximal electroshock-induced seizure model. Pharmacol Rep 2013; 64:970-8. [PMID: 23087150 DOI: 10.1016/s1734-1140(12)70893-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 03/26/2012] [Indexed: 11/24/2022]
Abstract
BACKGROUND The aim of this study was to determine the effects of 5-(3-chlorophenyl)-4-(4-methylphenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione (TP10) on the protective action of 4 classical antiepileptic drugs - carbamazepine, phenobarbital, phenytoin and valproate - against maximal electroshock-induced seizures in mice. METHODS Tonic hind limb extension (seizure activity) was evoked in adult male albino Swiss mice by an electric current (sine-wave, 25 mA, 500 V, 50 Hz, 0.2 s stimulus duration) delivered via auricular electrodes. Acute adverse-effect profiles with respect to motor performance, long-term memory and skeletal muscular strength were measured, together with total brain antiepileptic drug concentrations. RESULTS TP10 administered intraperitoneally at 10 mg/kg significantly elevated the threshold for electroconvulsions in mice. TP10 at doses of 2.5 and 5 mg/kg had no impact on the threshold for electroconvulsions in mice. Moreover, TP10 (5 mg/kg) significantly enhanced the anticonvulsant activity of valproate, but not that of carbamazepine, phenobarbital or phenytoin in the maximal electroshock seizure test in mice. Pharmacokinetic experiments revealed that TP10 significantly elevated total brain concentrations of valproate in mice. CONCLUSIONS The enhanced anticonvulsant action of valproate by TP10 in the mouse maximal electroshock-induced seizure model was associated with a pharmacokinetic increase in total brain valproate concentrations in mice. The combinations of TP10 with carbamazepine, phenobarbital and phenytoin were neutral from a preclinical viewpoint.
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Chen YH, Wu KC, Yang CT, Tu YK, Gong CL, Chao CC, Tsai MF, Kuo YH, Leung YM. Coumarsabin hastens C-type inactivation gating of voltage-gated K+ channels. Eur J Pharmacol 2013; 704:41-8. [DOI: 10.1016/j.ejphar.2013.01.062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2012] [Revised: 01/30/2013] [Accepted: 01/31/2013] [Indexed: 11/16/2022]
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Wang X, Lou YJ, Wang MX, Shi YW, Xu HX, Kong LD. Furocoumarins affect hepatic cytochrome P450 and renal organic ion transporters in mice. Toxicol Lett 2012; 209:67-77. [DOI: 10.1016/j.toxlet.2011.11.030] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2011] [Revised: 11/28/2011] [Accepted: 11/29/2011] [Indexed: 01/20/2023]
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32
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Wang J, Chen Z, Wu Y, Fan G. [Fast determination of active components in Angelica dahurica extract using capillary electrochromatography with methacrylate ester-based monolithic columns]. Se Pu 2012; 28:240-6. [PMID: 20549974 DOI: 10.3724/sp.j.1123.2010.00240] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The separation and determination of four important active components (imperatorin, isoimperatorin, phelloptorin and falcarindiol) from Angelica dahurica extract has been performed using capillary electrochromatography (CEC) with a methacrylate ester-based monolithic column. The effect of the porogen ratio on the column preparation was studied. The mobile phase composition, such as the concentration of organic solvent, the ionic strength and the pH of the buffer were also optimized. Under the optimized conditions (50% acetonitrile and 50% of a 20 mmol/L sodium dihydrogen phosphate electrolyte at pH 4.95, - 25 kV), a fast and baseline separation of the four analytes was achieved. The calibration curves showed a good linearity (r2 > 0.997) and the limits of detection were lower than 0.34 mg/L. The mean recoveries of the studied components ranged between 95.18% and 98.44%. The method developed is sensitive, reliable and suitable for the quality control. With this CEC system, the quality of Angelica dahurica extracts from 18 various regions was evaluated.
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Affiliation(s)
- Jiajing Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai Key Laboratory for Pharmaceutical Metabolite Research, Shanghai 200433, China
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The interactions of atorvastatin and fluvastatin with carbamazepine, phenytoin and valproate in the mouse maximal electroshock seizure model. Eur J Pharmacol 2012; 674:20-6. [DOI: 10.1016/j.ejphar.2011.10.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2011] [Revised: 09/12/2011] [Accepted: 10/15/2011] [Indexed: 11/21/2022]
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Wszelaki N, Paradowska K, Jamróz MK, Granica S, Kiss AK. Bioactivity-guided fractionation for the butyrylcholinesterase inhibitory activity of furanocoumarins from Angelica archangelica L. roots and fruits. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:9186-93. [PMID: 21786787 DOI: 10.1021/jf201971s] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Isolation and identification of the inhibitors of butyrylcholinesterase (BChE), obtained from the extracts of roots and fruits of Angelica archangelica L., are reported. Our results confirmed the weak inhibitory effect of Angelica roots on acetylcholinesterase activity. BChE inhibition was much more pronounced at a concentration of 100 μg/mL for hexane extracts and attained a higher rate than 50%. The TLC bioautography guided fractionation and spectroscopic analysis led to the isolation and identification of imperatorin from the fruit's hexane extract and of heraclenol-2'-O-angelate from the root's hexane extract. Both compounds showed significant BChE inhibition activity with IC(50) = 14.4 ± 3.2 μM and IC(50) = 7.5 ± 1.8 μM, respectively. Only C8-substituted and C5-unsubstituted furanocoumarins were active, which could supply information about the initial structures of specific BChE inhibitors.
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Affiliation(s)
- Natalia Wszelaki
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Medical University of Warsaw, Banacha 1, 02-097, Warsaw, Poland
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Arai Y, Maeda S, Higuchi H, Tomoyasu Y, Shimada M, Miyawaki T. Effects of midazolam and phenobarbital on brain oxidative reactions induced by pentylenetetrazole in a convulsion model. Immunopharmacol Immunotoxicol 2011; 34:216-21. [DOI: 10.3109/08923973.2011.595417] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Singhuber J, Baburin I, Ecker GF, Kopp B, Hering S. Insights into structure-activity relationship of GABAA receptor modulating coumarins and furanocoumarins. Eur J Pharmacol 2011; 668:57-64. [PMID: 21749864 DOI: 10.1016/j.ejphar.2011.06.034] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Revised: 06/20/2011] [Accepted: 06/24/2011] [Indexed: 11/18/2022]
Abstract
The coumarins imperatorin and osthole are known to exert anticonvulsant activity. We have therefore analyzed the modulation of GABA-induced chloride currents (I(GABA)) by a selection of 18 coumarin derivatives on recombinant α(1)β(2)γ(2S) GABA(A) receptors expressed in Xenopus laevis oocytes by means of the two-microelectrode voltage clamp technique. Osthole (EC(50)=14 ± 1 μM) and oxypeucedanin (EC(50)=25 ± 8 μM) displayed the highest efficiency with I(GABA) potentiation of 116 ± 4 % and 547 ± 56 %, respectively. I(GABA) enhancement by osthole and oxypeucedanin was not inhibited by flumazenil (1 μM) indicating an interaction with a binding site distinct from the benzodiazepine binding site. In general, prenyl residues are essential for the positive modulatory activity, while longer side chains or bulkier residues (e.g. geranyl residues) diminish I(GABA) modulation. Generation of a binary classification tree revealed the importance of polarisability, which is sufficient to distinguish actives from inactives. A 4-point pharmacophore model based on oxypeucedanin - comprising three hydrophobic and one aromatic feature - identified 6 out of 7 actives as hits. In summary, (oxy-)prenylated coumarin derivatives from natural origin represent new GABA(A) receptor modulators.
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Affiliation(s)
- Judith Singhuber
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria
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Brain Distribution Study of Imperatorin in Rats after Oral Administration Assessed by HPLC. Chromatographia 2011. [DOI: 10.1007/s10337-011-2073-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Łuszczki JJ, Andres-Mach M, Gleńsk M, Skalicka-Woźniak K. Anticonvulsant effects of four linear furanocoumarins, bergapten, imperatorin, oxypeucedanin, and xanthotoxin, in the mouse maximal electroshock-induced seizure model: a comparative study. Pharmacol Rep 2010; 62:1231-6. [DOI: 10.1016/s1734-1140(10)70387-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2009] [Revised: 04/22/2010] [Indexed: 11/25/2022]
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Luszczki JJ, Wojda E, Andres-Mach M, Cisowski W, Glensk M, Glowniak K, Czuczwar SJ. Anticonvulsant and acute neurotoxic effects of imperatorin, osthole and valproate in the maximal electroshock seizure and chimney tests in mice: A comparative study. Epilepsy Res 2009; 85:293-9. [DOI: 10.1016/j.eplepsyres.2009.03.027] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2008] [Revised: 03/25/2009] [Accepted: 03/30/2009] [Indexed: 11/30/2022]
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Luszczki JJ, Andres-Mach M, Cisowski W, Mazol I, Glowniak K, Czuczwar SJ. Osthole suppresses seizures in the mouse maximal electroshock seizure model. Eur J Pharmacol 2009; 607:107-9. [DOI: 10.1016/j.ejphar.2009.02.022] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2008] [Revised: 01/24/2009] [Accepted: 02/09/2009] [Indexed: 10/21/2022]
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Zarnowska I, Luszczki JJ, Zarnowski T, Buszewicz G, Madro R, Czuczwar SJ, Gasior M. Pharmacodynamic and pharmacokinetic interactions between common antiepileptic drugs and acetone, the chief anticonvulsant ketone body elevated in the ketogenic diet in mice. Epilepsia 2008; 50:1132-40. [PMID: 19178560 DOI: 10.1111/j.1528-1167.2008.01864.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
PURPOSE Acetone is the principal ketone body elevated in the ketogenic diet (KD), with demonstrated robust anticonvulsant properties across a variety of seizure tests and models of epilepsy. Because the majority of patients continue to receive antiepileptic drugs (AEDs) during KD treatment, interactions between acetone and AEDs may have important clinical implications. Therefore, we investigated whether acetone could affect the anticonvulsant activity and pharmacokinetic properties of several AEDs against maximal electroshock (MES)-induced seizures in mice. METHODS Effects of acetone given in subthreshold doses were tested on the anticonvulsant effects of carbamazepine (CBZ), lamotrigine (LTG), oxcarbazepine (OXC), phenobarbital (PB), phenytoin (PHT), topiramate (TPM) and valproate (VPA) against MES-induced seizures in mice. In addition, acute adverse effects of acetone-AEDs combinations were assessed in the chimney test (motor performance) and passive avoidance task (long-term memory). Pharmacokinetic interactions between acetone and AEDs were also studied in the mouse brain tissue. RESULTS Acetone (5 or 7.5 mmol/kg, intraperitoneally [i.p.]) enhanced the anticonvulsant activity of CBZ, LTG, PB, and VPA against MES-induced seizures; effects of OXC, PHT, and TPM were not changed. Acetone (7.5 mmol/kg) did not enhance the acute adverse-effect profiles of the studied AEDs. Acetone (5 or 7.5 mmol/kg, i.p.) did not affect total brain concentrations of the studied AEDs. In contrast, VPA, CBZ, LTG, OXC, and TPM significantly decreased the concentration of free acetone in the brain; PB and PHT had no effect. CONCLUSIONS Acetone enhances the anticonvulsant effects of several AEDs such as VPA, CBZ, LTG, and PB without affecting their pharmacokinetic and side-effect profiles.
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Affiliation(s)
- Iwona Zarnowska
- Department of Pathophysiology, Medical University, Lublin, Poland
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Epifano F, Molinaro G, Genovese S, Ngomba RT, Nicoletti F, Curini M. Neuroprotective effect of prenyloxycoumarins from edible vegetables. Neurosci Lett 2008; 443:57-60. [PMID: 18675882 DOI: 10.1016/j.neulet.2008.07.062] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2008] [Revised: 07/13/2008] [Accepted: 07/18/2008] [Indexed: 12/26/2022]
Abstract
The present study is designed to investigate the effect of some natural prenyloxyphenylpropanoids as neuroprotective agents against NMDA-induced toxicity in mixed cortical cell cultures containing both neurons and astrocytes. Excitotoxicity was induced by exposure of cultures to NMDA (100microM) at room temperature in a HEPES-buffered salt solution followed by incubation at 37 degrees C for the following 24h in MEM-Eagle's supplemented with 15.8mM NaHCO(3) and 25mM glucose. Tested compounds were mixed with NMDA. Neuronal injury was measured in all experiments by examination of cultures with phase-contrast microscopy at 20x, 18-20h after the insult while neuronal damage was quantitatively assessed by counting dead neurons stained with trypan blue and by measuring lactate dehydrogenase (LDH) released in the medium. Results showed that only natural prenyloxyphenylpropanoids containing a coumarin nucleus, namely 7-isopentenyloxycoumarin and auraptene, both found in nature from plants belonging to the genus Citrus and other of the family of Rutaceae, including edible ones, exerted a good dose-dependent manner protective effect against NMDA-induced neurotoxicity in particular at concentrations ranging from 1 to 10microM.
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Affiliation(s)
- Francesco Epifano
- Dipartimento di Scienze del Farmaco, Università G. D'Annunzio, Via dei Vestini 31, 66013 Chieti Scalo, Italy.
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