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Liu Y, Li XY, Wu JT, Wang H, Meng X, Zou HD, Pan J, Guan W, Algradi AM, Naseem A, Kuang HX, Yang BY. Fourteen undescribed steroidal saponins from Solanum capsicoides leaves and their neuroprotective effects. PHYTOCHEMISTRY 2024; 222:114091. [PMID: 38615926 DOI: 10.1016/j.phytochem.2024.114091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 04/06/2024] [Accepted: 04/07/2024] [Indexed: 04/16/2024]
Abstract
A total of 14 previously undescribed steroidal saponins named capsicsaponins A-N were isolated from the leaves of Solanum capsicoides, encompassing various types, including cholesterol derivatives and pseudospirostanol saponins. The structures of all compounds were determined through comprehensive analysis of spectroscopic data (1D NMR and 2D NMR), along with physicochemical analysis methods (acid hydrolysis, OR, and UV). Moreover, in the H2O2-induced pheochromocytoma cell line model, compounds 1-14 were screened for their neuroprotective effects on cells. The bioassay results demonstrated compounds 8-14 were able to revive cell viability compared to the positive control edaravone. The damage neuroprotection of the most active compound was further explored.
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Affiliation(s)
- Yan Liu
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Xin-Yuan Li
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Jia-Tong Wu
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Han Wang
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Xin Meng
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Hai-Dan Zou
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Juan Pan
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Wei Guan
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Adnan Mohammed Algradi
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Anam Naseem
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Hai-Xue Kuang
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, 150040, China.
| | - Bing-You Yang
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, 150040, China.
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2
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Zhou J, Zhao XM, An RF, Li XR, Wu KT, Li SM, Huang XF. Four new steroidal glycosides from Lilium lancifolium Thunb. and their antitumor activity. Fitoterapia 2024; 173:105808. [PMID: 38168567 DOI: 10.1016/j.fitote.2023.105808] [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: 10/01/2023] [Revised: 12/08/2023] [Accepted: 12/29/2023] [Indexed: 01/05/2024]
Abstract
Four new steroidal glycosides (1-4), including two steroidal saponins named lililancifoloside B and C (1-2), one pregnane glycoside named lililancifoloside D (3), and one C22-steroidal lactone glycoside named lililancifoloside E (4), together with five known ones (5-9), were isolated from the bulbs of Lilium lancifolium Thunb. By using spectroscopic analysis, including 1D, 2D NMR, and HR-ESI-MS, the structures of 1-4 were elucidated. All isolates were tested for their cytotoxic potential against the MCF-7, MDA-MB-231, HepG2, and A549 cell lines. Compound 6 distinguished out among them, IC50 values of 3.31, 5.23, 1.78, and 1.49 μM against the four cell lines, respectively. Other compounds such as compound 3, 5, and 9 have also shown specific cytotoxic activity. Next, studies showed that compound 6 might cause HepG2 cells to undergo a cell cycle arrest during the G2/M phase and apoptosis.
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Affiliation(s)
- Jing Zhou
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Xin-Meng Zhao
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Ren-Feng An
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Xiao-Rui Li
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Kai-Tian Wu
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Shu-Ming Li
- School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China; Tasly Academy, Tasly Holding Group Co Ltd., Tianjin 300410, China.
| | - Xue-Feng Huang
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
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3
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Nieoczym D, Marszalek-Grabska M, Szalak R, Kundap U, Kaczor AA, Wrobel TM, Kosheva N, Komar M, Abram M, Esguerra CV, Samarut E, Pieróg M, Jakubiec M, Kaminski K, Kukula-Koch W, Gawel K. A comprehensive assessment of palmatine as anticonvulsant agent - In vivo and in silico studies. Biomed Pharmacother 2024; 172:116234. [PMID: 38325264 DOI: 10.1016/j.biopha.2024.116234] [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: 11/08/2023] [Revised: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 02/09/2024] Open
Abstract
Previously, we demonstrated that palmatine (PALM) - an isoquinoline alkaloid from Berberis sibrica radix, exerted antiseizure activity in the pentylenetetrazole (PTZ)-induced seizure assay in larval zebrafish. The aim of the present study was to more precisely characterize PALM as a potential anticonvulsant drug candidate. A range of zebrafish and mouse seizure/epilepsy models were applied in the investigation. Immunostaining analysis was conducted to assess the changes in mouse brains, while in silico molecular modelling was performed to determine potential targets for PALM. Accordingly, PALM had anticonvulsant effect in ethyl 2-ketopent-4-enoate (EKP)-induced seizure assay in zebrafish larvae as well as in the 6 Hz-induced psychomotor seizure threshold and timed infusion PTZ tests in mice. The protective effect in the EKP-induced seizure assay was confirmed in the local field potential recordings. PALM did not affect seizures in the gabra1a knockout line of zebrafish larvae. In the scn1Lab-/- zebrafish line, pretreatment with PALM potentiated seizure-like behaviour of larvae. Repetitive treatment with PALM, however, did not reduce development of PTZ-induced seizure activity nor prevent the loss of parvalbumin-interneurons in the hippocampus of the PTZ kindled mice. In silico molecular modelling revealed that the noted anticonvulsant effect of PALM in EKP-induced seizure assay might result from its interactions with glutamic acid decarboxylase and/or via AMPA receptor non-competitive antagonism. Our study has demonstrated the anticonvulsant activity of PALM in some experimental models of seizures, including a model of pharmacoresistant seizures induced by EKP. These results indicate that PALM might be a suitable new drug candidate but the precise mechanism of its anticonvulsant activity has to be determined.
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Affiliation(s)
- Dorota Nieoczym
- Chair of Animal Physiology and Pharmacology, Institute of Biology and Biochemistry, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka Str. 19, 20-033 Lublin, Poland
| | - Marta Marszalek-Grabska
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, Jaczewskiego Str. 8b, 20-090 Lublin, Poland
| | - Radoslaw Szalak
- Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences, 12 Akademicka St., 20-950 Lublin, Poland
| | - Uday Kundap
- Research Center of the University of Montreal Hospital Center (CRCHUM), Department of Neurosciences, Université de Montréal, Montréal, QC H2X 0A9, Canada; Canada East Spine Centre, Saint John Regional Hospital, Department of Spine and Orthopaedics surgery, Horizon Health Network, Saint John, NB E2L 4L4, Canada
| | - Agnieszka A Kaczor
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances with Computer Modeling Laboratory, Faculty of Pharmacy, Medical University of Lublin, 4A Chodżki St., PL-20093 Lublin, Poland; School of Pharmacy, University of Eastern Finland, Yliopistonranta 1, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Tomasz M Wrobel
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances with Computer Modeling Laboratory, Faculty of Pharmacy, Medical University of Lublin, 4A Chodżki St., PL-20093 Lublin, Poland
| | - Nataliia Kosheva
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, Jaczewskiego Str. 8b, 20-090 Lublin, Poland
| | - Malgorzata Komar
- Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences, 12 Akademicka St., 20-950 Lublin, Poland
| | - Michal Abram
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland
| | - Camila V Esguerra
- Chemical Neuroscience Group, Centre for Molecular Medicine Norway, University of Oslo, Gaustadalleen 21, Forskningsparken, 0349 Oslo, Norway
| | - Eric Samarut
- Research Center of the University of Montreal Hospital Center (CRCHUM), Department of Neurosciences, Université de Montréal, Montréal, QC H2X 0A9, Canada; Neurosciences Department, University of Montreal, Montreal, QC, Canada
| | - Mateusz Pieróg
- Chair of Animal Physiology and Pharmacology, Institute of Biology and Biochemistry, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka Str. 19, 20-033 Lublin, Poland
| | - Marcin Jakubiec
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland
| | - Krzysztof Kaminski
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland
| | - Wirginia Kukula-Koch
- Department of Pharmacognosy with Medicinal Plants Garden, Medical University of Lublin, Chodzki Str. 1, 20-093 Lublin, Poland
| | - Kinga Gawel
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, Jaczewskiego Str. 8b, 20-090 Lublin, Poland.
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Chitolina R, Gallas-Lopes M, Reis CG, Benvenutti R, Stahlhofer-Buss T, Calcagnotto ME, Herrmann AP, Piato A. Chemically-induced epileptic seizures in zebrafish: A systematic review. Epilepsy Res 2023; 197:107236. [PMID: 37801749 DOI: 10.1016/j.eplepsyres.2023.107236] [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: 07/17/2023] [Revised: 09/14/2023] [Accepted: 09/28/2023] [Indexed: 10/08/2023]
Abstract
The use of zebrafish as a model organism is gaining evidence in the field of epilepsy as it may help to understand the mechanisms underlying epileptic seizures. As zebrafish assays became popular, the heterogeneity between protocols increased, making it hard to choose a standard protocol to conduct research while also impairing the comparison of results between studies. We conducted a systematic review to comprehensively profile the chemically-induced seizure models in zebrafish. Literature searches were performed in PubMed, Scopus, and Web of Science, followed by a two-step screening process based on inclusion/exclusion criteria. Qualitative data were extracted, and a sample of 100 studies was randomly selected for risk of bias assessment. Out of the 1058 studies identified after removing duplicates, 201 met the inclusion criteria. We found that the most common chemoconvulsants used in the reviewed studies were pentylenetetrazole (n = 180), kainic acid (n = 11), and pilocarpine (n = 10), which increase seizure severity in a dose-dependent manner. The main outcomes assessed were seizure scores and locomotion. Significant variability between the protocols was observed for administration route, duration of exposure, and dose/concentration. Of the studies subjected to risk of bias assessment, most were rated as low risk of bias for selective reporting (94%), baseline characteristics of the animals (67%), and blinded outcome assessment (54%). Randomization procedures and incomplete data were rated unclear in 81% and 68% of the studies, respectively. None of the studies reported the sample size calculation. Overall, these findings underscore the need for improved methodological and reporting practices to enhance the reproducibility and reliability of zebrafish models for studying epilepsy. Our study offers a comprehensive overview of the current state of chemically-induced seizure models in zebrafish, highlighting the common chemoconvulsants used and the variability in protocol parameters. This may be particularly valuable to researchers interested in understanding the underlying mechanisms of epileptic seizures and screening potential drug candidates in zebrafish models.
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Affiliation(s)
- Rafael Chitolina
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Laboratório de Psicofarmacologia e Comportamento (LAPCOM), Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Matheus Gallas-Lopes
- Brazilian Reproducibility Initiative in Preclinical Systematic Review and meta-Analysis (BRISA) Collaboration, Brazil; Laboratório de Neurobiologia e Psicofarmacologia Experimental (PsychoLab), Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Carlos G Reis
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Laboratório de Psicofarmacologia e Comportamento (LAPCOM), Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Radharani Benvenutti
- School of Pharmacy and Biomolecular Sciences, RCSI University of Medicine and Health Sciences, Dublin, Ireland
| | - Thailana Stahlhofer-Buss
- Laboratório de Psicofarmacologia e Comportamento (LAPCOM), Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Maria Elisa Calcagnotto
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Laboratório de Neurobiologia e Neuroquímica da Excitabilidade Neuronal e Plasticidade Sináptica (NNNESP Lab), Departamento de bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Ana P Herrmann
- Brazilian Reproducibility Initiative in Preclinical Systematic Review and meta-Analysis (BRISA) Collaboration, Brazil; Laboratório de Neurobiologia e Psicofarmacologia Experimental (PsychoLab), Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Angelo Piato
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Laboratório de Psicofarmacologia e Comportamento (LAPCOM), Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
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5
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Knap B, Nieoczym D, Kundap U, Kusio-Targonska K, Kukula-Koch W, Turski WA, Gawel K. Zebrafish as a robust preclinical platform for screening plant-derived drugs with anticonvulsant properties-a review. Front Mol Neurosci 2023; 16:1221665. [PMID: 37701853 PMCID: PMC10493295 DOI: 10.3389/fnmol.2023.1221665] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 07/25/2023] [Indexed: 09/14/2023] Open
Abstract
Traditionally, selected plant sources have been explored for medicines to treat convulsions. This continues today, especially in countries with low-income rates and poor medical systems. However, in the low-income countries, plant extracts and isolated drugs are in high demand due to their good safety profiles. Preclinical studies on animal models of seizures/epilepsy have revealed the anticonvulsant and/or antiepileptogenic properties of, at least some, herb preparations or plant metabolites. Still, there is a significant number of plants known in traditional medicine that exert anticonvulsant activity but have not been evaluated on animal models. Zebrafish is recognized as a suitable in vivo model of epilepsy research and is increasingly used as a screening platform. In this review, the results of selected preclinical studies are summarized to provide credible information for the future development of effective screening methods for plant-derived antiseizure/antiepileptic therapeutics using zebrafish models. We compared zebrafish vs. rodent data to show the translational value of the former in epilepsy research. We also surveyed caveats in methodology. Finally, we proposed a pipeline for screening new anticonvulsant plant-derived drugs in zebrafish ("from tank to bedside and back again").
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Affiliation(s)
- Bartosz Knap
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, Lublin, Poland
| | - Dorota Nieoczym
- Department of Animal Physiology and Pharmacology, Institute of Biological Sciences, Maria Curie-Skłodowska University, Lublin, Poland
| | - Uday Kundap
- Canada East Spine Center, Saint John Regional Hospital, Horizon Health Center, Saint John, NB, Canada
| | - Kamila Kusio-Targonska
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, Lublin, Poland
| | - Wirginia Kukula-Koch
- Department of Pharmacognosy with Medicinal Plants Garden, Medical University, Lublin, Poland
| | - Waldemar A. Turski
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, Lublin, Poland
| | - Kinga Gawel
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, Lublin, Poland
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Szep D, Dittrich B, Gorbe A, Szentpeteri JL, Aly N, Jin M, Budan F, Sik A. A comparative study to optimize experimental conditions of pentylenetetrazol and pilocarpine-induced epilepsy in zebrafish larvae. PLoS One 2023; 18:e0288904. [PMID: 37506089 PMCID: PMC10381053 DOI: 10.1371/journal.pone.0288904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
A common way to investigate epilepsy and the effect of antiepileptic pharmaceuticals is to analyze the movement patterns of zebrafish larvae treated with different convulsants like pentylenetetrazol (PTZ), pilocarpine, etc. Many articles have been written on this topic, but the research methods and exact settings are not sufficiently defined in most. Here we designed and executed a series of experiments to optimize and standardize the zebrafish epilepsy model. We found that during the light and the dark trials, the zebrafish larvae moved significantly more in the light, independent of the treatment, both in PTZ and pilocarpine-treated and the control groups. As expected, zebrafish larvae treated with convulsants moved significantly more than the ones in the control group, although this difference was higher between the individuals treated with PTZ than pilocarpine. When examining the optimal observation time, we divided the half-hour period into 5-minute time intervals, and between these, the first 5 minutes were found to be the most different from the others. There were fewer significant differences in the total movement of larvae between the other time intervals. We also performed a linear regression analysis with the cumulative values of the distance moved during the time intervals that fit the straight line. In conclusion, we recommend 30 minutes of drug pretreatment followed by a 10-minute test in light conditions with a 5-minute accommodation time. Our result paves the way toward improved experimental designs using zebrafish to develop novel pharmaceutical approaches to treat epilepsy.
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Affiliation(s)
- David Szep
- Institute of Transdisciplinary Discoveries, Medical School, University of Pecs, Pecs, Hungary
- Institute of Physiology, Medical School, University of Pecs, Pecs, Hungary
| | - Bianka Dittrich
- Institute of Transdisciplinary Discoveries, Medical School, University of Pecs, Pecs, Hungary
- Institute of Physiology, Medical School, University of Pecs, Pecs, Hungary
| | - Aniko Gorbe
- Institute of Transdisciplinary Discoveries, Medical School, University of Pecs, Pecs, Hungary
- Institute of Physiology, Medical School, University of Pecs, Pecs, Hungary
| | - Jozsef L Szentpeteri
- Institute of Transdisciplinary Discoveries, Medical School, University of Pecs, Pecs, Hungary
| | - Nour Aly
- Institute of Physiology, Medical School, University of Pecs, Pecs, Hungary
| | - Meng Jin
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan, Shandong Province, P.R. China
| | - Ferenc Budan
- Institute of Transdisciplinary Discoveries, Medical School, University of Pecs, Pecs, Hungary
- Institute of Physiology, Medical School, University of Pecs, Pecs, Hungary
| | - Attila Sik
- Institute of Transdisciplinary Discoveries, Medical School, University of Pecs, Pecs, Hungary
- Institute of Physiology, Medical School, University of Pecs, Pecs, Hungary
- College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
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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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8
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D'Amora M, Galgani A, Marchese M, Tantussi F, Faraguna U, De Angelis F, Giorgi FS. Zebrafish as an Innovative Tool for Epilepsy Modeling: State of the Art and Potential Future Directions. Int J Mol Sci 2023; 24:ijms24097702. [PMID: 37175408 PMCID: PMC10177843 DOI: 10.3390/ijms24097702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/20/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
This article discusses the potential of Zebrafish (ZF) (Danio Rerio), as a model for epilepsy research. Epilepsy is a neurological disorder affecting both children and adults, and many aspects of this disease are still poorly understood. In vivo and in vitro models derived from rodents are the most widely used for studying both epilepsy pathophysiology and novel drug treatments. However, researchers have recently obtained several valuable insights into these two fields of investigation by studying ZF. Despite the relatively simple brain structure of these animals, researchers can collect large amounts of data in a much shorter period and at lower costs compared to classical rodent models. This is particularly useful when a large number of candidate antiseizure drugs need to be screened, and ethical issues are minimized. In ZF, seizures have been induced through a variety of chemoconvulsants, primarily pentylenetetrazol (PTZ), kainic acid (KA), and pilocarpine. Furthermore, ZF can be easily genetically modified to test specific aspects of monogenic forms of human epilepsy, as well as to discover potential convulsive phenotypes in monogenic mutants. The article reports on the state-of-the-art and potential new fields of application of ZF research, including its potential role in revealing epileptogenic mechanisms, rather than merely assessing iatrogenic acute seizure modulation.
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Affiliation(s)
- Marta D'Amora
- Istituto Italiano di Tecnologia, 16163 Genova, Italy
- Department of Biology, University of Pisa, 56125 Pisa, Italy
| | - Alessandro Galgani
- Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, 56126 Pisa, Italy
| | - Maria Marchese
- Molecular Medicine and Neurobiology-ZebraLab, IRCCS Fondazione Stella Maris, 56128 Pisa, Italy
| | | | - Ugo Faraguna
- Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, 56126 Pisa, Italy
- Department of Developmental Neuroscience, IRCCS Fondazione Stella Maris, 56128 Pisa, Italy
| | | | - Filippo Sean Giorgi
- Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, 56126 Pisa, Italy
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9
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In silico studies, X-ray diffraction analysis and biological investigation of fluorinated pyrrolylated-chalcones in zebrafish epilepsy models. Heliyon 2023; 9:e13685. [PMID: 36852036 PMCID: PMC9958447 DOI: 10.1016/j.heliyon.2023.e13685] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 02/13/2023] Open
Abstract
Epilepsy is the third most common known brain disease worldwide. Several antiepileptic drugs (AEDs) are available to improve seizure control. However, the associated side effects limit their practical use and highlight the ongoing search for safer and effective AEDs. Eighteen newly designed fluorine-containing pyrrolylated chalcones were extensively studied in silico, synthesized, structurally analyzed by X-ray diffraction (XRD), and biologically and toxicologically tested as potential new AEDs in zebrafish epilepsy in vivo models. The results predicted that 3-(3,5-difluorophenyl)-1-(1H-pyrrol-2-yl)prop-2-en-1-one (compound 8) had a good drug-like profile with binding affinity to γ-aminobutyric acid receptor type-A (GABAA, -8.0 kcal/mol). This predicted active compound 8 was effective in reducing convulsive behaviour in pentylenetetrazol (PTZ)-induced larvae and hyperactive movements in zc4h2 knockout (KO) zebrafish, experimentally. Moreover, no cardiotoxic effect of compound 8 was observed in zebrafish. Overall, pyrrolylated chalcones could serve as alternative AEDs and warrant further in-depth pharmacological studies to uncover their mechanism of action.
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Crawford AD. Identification of anti-epileptic natural products using zebrafish. MAKEDONSKO FARMACEVTSKI BILTEN 2022. [DOI: 10.33320/maced.pharm.bull.2022.68.04.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Affiliation(s)
- Alexander D. Crawford
- Department of Preclinical Sciences and Pathology, Norwegian University of Life Sciences (NMBU), Elizabeth Stephansens vei 15, 1430 Ås, Norway
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11
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Shaw PAG, Panda SK, Stanca A, Luyten W. Optimization of a locomotion-based zebrafish seizure model. J Neurosci Methods 2022; 375:109594. [PMID: 35421798 DOI: 10.1016/j.jneumeth.2022.109594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 03/22/2022] [Accepted: 04/02/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND Locomotor assays in zebrafish have emerged as a screening test in early drug discovery for antiseizure compounds. However, parameters differ considerably between published studies, which may explain some discrepant results with (candidate) antiseizure medications. NEW METHOD We optimized a locomotor-based seizure assay in zebrafish with pentylenetetrazol (PTZ) as the pharmacological proconvulsant to generate a therapeutic window in which proconvulsant-treated zebrafish larvae could be discriminated from a non-treated control. To generate a reliable control, exposure time and concentration of valproate (VPA, anticonvulsant) was optimized. RESULTS Wells with one or three larvae show a similar PTZ dose-dependent increase in locomotion with less variability in motility for the latter. Zebrafish immersed in 10 mM PTZ showed a significant increase in movement with a sustained effect, without any indication of toxicity. Animals treated with 3 mM VPA showed the strongest reduction of PTZ-induced movement without toxicity. The decrease in PTZ-induced locomotion was greater after 18 h versus 2 h. COMPARISON WITH EXISTING METHOD(S) For the larval zebrafish PTZ-induced seizure model, varying experimental parameters have been reported in literature. Our results show that PTZ is often used at toxic concentrations, and we provide instead reliable conditions to quantify convulsant behaviour using an infrared-beam motility assay. CONCLUSIONS We recommend using three zebrafish larvae per well to quantify locomotion in 96-multiwell plates. Larvae should preferably be exposed to 10 mM PTZ for 1 h, consisting of 30 min acclimation and 30 min subsequent recording. As positive control for anticonvulsant activity, we recommend exposure to 3 mM VPA for 18 h before administration of PTZ.
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Affiliation(s)
| | - Sujogya Kumar Panda
- Department of Biology, KU Leuven, Naamsestraat 59, 3000 Leuven, Belgium; Center of Environment Climate Change and Public Health, Utkal University, Vani Vihar, Bhubaneswar 751004, Odisha, India.
| | - Alexandru Stanca
- Department of Biology, KU Leuven, Naamsestraat 59, 3000 Leuven, Belgium.
| | - Walter Luyten
- Department of Biology, KU Leuven, Naamsestraat 59, 3000 Leuven, Belgium.
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Gwedela MNV, Terai H, Lampiao F, Matsunami K, Aizawa H. Anti-seizure effects of medicinal plants in Malawi on pentylenetetrazole-induced seizures in zebrafish larvae. JOURNAL OF ETHNOPHARMACOLOGY 2022; 284:114763. [PMID: 34688800 DOI: 10.1016/j.jep.2021.114763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/15/2021] [Accepted: 10/18/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Medicinal plants are used to manage and treat epilepsy in Malawi because of traditional beliefs and barriers to conventional anti-seizure drugs. Among the plants prescribed by traditional medical practitioners are Margaritaria discoidea, Dalbergia boehmii, Dalbergia nitidula, Catunaregam spinosa, and Lannea discolor. Despite the wide use of these plants, there is a lack of scientific evidence to support their anti-seizure efficacy. AIM OF THE STUDY This study used the pentylenetetrazole (PTZ)-induced larval zebrafish seizure model to screen for anti-seizure effects of a collection of medicinal plants traditionally used in Malawi. MATERIALS AND METHODS Zebrafish larvae were incubated in decoctions at maximum tolerated concentrations for 18 h and exposed to PTZ. As a primary screen, the effects of the decoctions on seizure-induced locomotor activity were determined. Decoctions that significantly reduced total distance traveled were further checked for effects on seizure latency and frequency, brain activity, immediate early gene expression, and c-fos protein expression. RESULTS M. discoidea male leaves, D. boehmii roots, and D. nitidula leaves showed significant anti-seizure effects in the primary screen and were selected for further study. Electrophysiological and immediate early gene analyses corroborated anti-seizure effect of D. boehmii and D. nitidula. The results of c-fos protein expression further suggested that the anti-seizure effects in the larval brain may be mediated by the suppression of neurons localized in midbrain regions. CONCLUSIONS These findings provide pioneering scientific evidence of the presence of anti-seizure activity in M. discoidea, D. boehmii, and D. nitidula, prescribed by traditional Malawian medical practitioners. Further studies are needed to identify and isolate compounds responsible for such biological activities and elucidate the possible mechanisms of action.
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Affiliation(s)
- Mayeso Naomi Victoria Gwedela
- Department of Neurobiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8553, Japan
| | - Haruhi Terai
- Department of Neurobiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8553, Japan
| | - Fanuel Lampiao
- Africa Centre of Excellence in Public Health and Herbal Medicine, Kamuzu University of Health Sciences, Private Bag 360, Blantyre, Malawi
| | - Katsuyoshi Matsunami
- Department of Pharmacognosy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8553, Japan
| | - Hidenori Aizawa
- Department of Neurobiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8553, Japan.
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Castañeda R, Cáceres A, Velásquez D, Rodríguez C, Morales D, Castillo A. Medicinal plants used in traditional Mayan medicine for the treatment of central nervous system disorders: An overview. JOURNAL OF ETHNOPHARMACOLOGY 2022; 283:114746. [PMID: 34656668 DOI: 10.1016/j.jep.2021.114746] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/22/2021] [Accepted: 10/11/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE For thousands of years, different cultural groups have used and transformed natural resources for medicinal purposes focused on psychological or neurological conditions. Some of these are recognized as central nervous system (CNS) disorders and diseases, whereas other ethnopsychiatric interpretations are explained in culture-specific terms. In traditional Mayan medicine, several herbs have been part of treatments and rituals focused on cultural and ethnomedical concepts. AIM OF REVIEW This study aims to provide a comprehensive overview of the medicinal plants used in Mesoamerica by traditional healers and Mayan groups to CNS disorders and associate the traditional use with demonstrated pharmacological evidence to establish a solid foundation for directing future research. METHODS A systematic search for primary sources of plant use reports for traditional CNS-related remedies of Mesoamerica were obtained from library catalogs, thesis and scientific databases (PubMed, Scopus, Google Scholar; and Science Direct), and entered in a database with data analyzed in terms of the usage frequency, use by ethnic groups, plant endemism, and pharmacological investigation. RESULTS A total of 155 plants used for ethnopsychiatric conditions in Mesoamerica by Mayan groups were found, encompassing 127 native species. Of these, only 49 native species have reported in vitro or in vivo pharmacological analyses. The most commonly reported ethnopsychiatric conditions are related to anxiety, depression, memory loss, epilepsy, and insomnia. The extent of the scientific evidence available to understand the pharmacological application for their use against CNS disorders varied between different plant species, with the most prominent evidence shown by Annona cherimola, Justicia pectoralis, J. spicigera, Mimosa pudica, Persea americana, Petiveria alliacea, Piper amalago, Psidium guajava, Tagetes erecta and T. lucida. CONCLUSION Available pharmacological data suggest that different plant species used in traditional Mayan medicine may target the CNS, mainly related to GABA, serotonin, acetylcholine, or neuroprotective pathways. However, more research is required, given the limited data regarding mechanism of action at the preclinical in vivo level, identification of active compounds, scarce number of clinical studies, and the dearth of peer-reviewed studies.
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Affiliation(s)
- Rodrigo Castañeda
- School of Pharmacy, Faculty of Chemical Sciences and Pharmacy, University of San Carlos, Guatemala.
| | | | - Diana Velásquez
- School of Biology, Faculty of Chemical Sciences and Pharmacy, University of San Carlos, Guatemala.
| | - Cesar Rodríguez
- School of Pharmacy, Faculty of Chemical Sciences and Pharmacy, University of San Carlos, Guatemala.
| | - David Morales
- School of Pharmacy, Faculty of Chemical Sciences and Pharmacy, University of San Carlos, Guatemala.
| | - Andrea Castillo
- School of Pharmacy, Faculty of Chemical Sciences and Pharmacy, University of San Carlos, Guatemala.
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14
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Chipiti T, Viljoen AM, Cordero-Maldonado ML, Veale CGL, Van Heerden FR, Sandasi M, Chen W, Crawford AD, Enslin GM. Anti-seizure activity of African medicinal plants: The identification of bioactive alkaloids from the stem bark of Rauvolfia caffra using an in vivo zebrafish model. JOURNAL OF ETHNOPHARMACOLOGY 2021; 279:114282. [PMID: 34118342 DOI: 10.1016/j.jep.2021.114282] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/15/2021] [Accepted: 05/30/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Epilepsy is one of the major chronic diseases that does not have a cure to date. Adverse drug reactions have been reported from the use of available anti-epileptic drugs (AEDs) which are also effective in only two-thirds of the patients. Accordingly, the identification of scaffolds with promising anti-seizure activity remains an important first step towards the development of new anti-epileptic therapies, with improved efficacy and reduced adverse effects. Herbal medicines are widely used in developing countries, including in the treatment of epilepsy but with little scientific evidence to validate this use. In the search for new epilepsy treatment options, the zebrafish has emerged as a chemoconvulsant-based model for epilepsy, mainly because of the many advantages that zebrafish larvae offer making them highly suitable for high-throughput drug screening. AIM OF THE STUDY In this study, 20 medicinal plants traditionally used in South Africa to treat epilepsy were screened for anti-epileptic activity using a zebrafish larvae model. MATERIALS AND METHODS Toxicity triaging was conducted on 120 crude extracts, 44 fractions and three isolated compounds to determine the maximum tolerated concentration (MTC) of each extract, fraction or compound. MTC values were used to guide the concentration range selection in bioactivity studies. The effectiveness of crude extracts, fractions and isolated compounds from Rauvolfia caffra Sond. in suppression of pentylenetetrazole (PTZ) induced seizure-like behaviour in a 6-dpf zebrafish larvae model was measured using the PTZ assay. RESULTS Following a preliminary toxicity triage and bioactivity screen of crude extracts from 20 African plants used traditionally for the treatment and management of epilepsy, the methanolic extract of Rauvolfia caffra Sond. was identified as the most promising at suppressing PTZ induced seizure-like behaviour in a zebrafish larvae model. Subsequent bioactivity-guided fractionation and spectroscopic structural elucidation resulted in the isolation and identification of two tryptoline derivatives; a previously unreported alkaloid to which we assigned the trivial name rauverine H (1) and the known alkaloid pleiocarpamine (2). Pleiocarpamine was found to reduce PTZ-induced seizures in a dose-dependent manner. CONCLUSIONS Accordingly, pleiocarpamine represents a promising scaffold for the development of new anti-seizure therapeutic compounds. Furthermore, the results of this study provide preliminary evidence to support the traditional use of Rauvolfia caffra Sond. in the treatment and management of epilepsy. These findings warrant further studies on the anti-epileptic potential of Rauvolfia caffra Sond. using other models.
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Affiliation(s)
- Talent Chipiti
- Department of Pharmaceutical Sciences, Tshwane University of Technology, Pretoria, 0001, South Africa
| | - Alvaro M Viljoen
- Department of Pharmaceutical Sciences, Tshwane University of Technology, Pretoria, 0001, South Africa; SAMRC Herbal Drugs Research Unit, Tshwane University of Technology, Pretoria, 0001, South Africa
| | - Maria L Cordero-Maldonado
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur- Alzette, 4362, Luxembourg
| | - Clinton G L Veale
- School of Chemistry and Physics, Pietermaritzburg Campus, University of KwaZulu-Natal, Scottsville, 3209, South Africa
| | - Fanie R Van Heerden
- School of Chemistry and Physics, Pietermaritzburg Campus, University of KwaZulu-Natal, Scottsville, 3209, South Africa
| | - Maxleene Sandasi
- Department of Pharmaceutical Sciences, Tshwane University of Technology, Pretoria, 0001, South Africa
| | - Weiyang Chen
- Department of Pharmaceutical Sciences, Tshwane University of Technology, Pretoria, 0001, South Africa
| | - Alexander D Crawford
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur- Alzette, 4362, Luxembourg; Department of Preclinical Sciences and Pathology, Norwegian University of Life Sciences, Oslo, Norway; Institute for Orphan Drug Discovery, Bremer Innovations- und Technologiezentrum, Bremen, Germany
| | - Gill M Enslin
- Department of Pharmaceutical Sciences, Tshwane University of Technology, Pretoria, 0001, South Africa.
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15
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Geck MS, Lecca D, Marchese G, Casu L, Leonti M. Ethnomedicine and neuropsychopharmacology in Mesoamerica. JOURNAL OF ETHNOPHARMACOLOGY 2021; 278:114243. [PMID: 34129899 DOI: 10.1016/j.jep.2021.114243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/27/2021] [Accepted: 05/24/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The burden of disease caused by mental and neurological disorders is increasing globally, to a disproportionate degree in Latin America. In contrast to the many psychoactive plants with a use history in Mesoamerican cultures, the translation to the wider population of knowledge around numerous botanicals used contemporarily by indigenous Mesoamerican societies to treat psychological and neurological disorders did not receive the same attention. MATERIAL AND METHODS We used the previously published Mesoamerican Medicinal Plant Database to extract species and associated botanical drugs used as treatments for illnesses associated with the nervous system by Mesoamerican cultures in Belize, Guatemala, and Mexico. With the critical use of published pharmacological literature, the cross-culturally most salient genera are systematically reviewed. RESULTS From 2188 plant taxa contained in the database 1324 are used as treatments for illnesses associated with the nervous system. The ethnomedical data was critically confronted with the available biomedical literature for the 58 cross-culturally most salient genera. For a considerable proportion of the frequently used taxa, preclinical data are available, mostly validating ethnomedicinal uses. CONCLUSION This quantitative approach facilitates the prioritization of taxa for future pre-clinical, clinical and treatment outcome studies and gives patients, practitioners, and legislators a fundamental framework of evidence, on which to base decisions regarding phytomedicines.
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Affiliation(s)
- Matthias S Geck
- Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria, 09042, Monserrato, CA, Italy; Biovision - Foundation for Ecological Development, Heinrichstrasse 147, 8005, Zurich, Switzerland
| | - Daniele Lecca
- Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria, 09042, Monserrato, CA, Italy
| | - Giorgio Marchese
- Institute of Translational Pharmacology UOS of Cagliari National Research Council of Italy, Pula, Cagliari, Italy
| | - Laura Casu
- Department of Life and Environmental Sciences, University of Cagliari, Cittadella Universitaria, 09042, Monserrato, CA, Italy
| | - Marco Leonti
- Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria, 09042, Monserrato, CA, Italy.
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16
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Bertoncello KT, Bonan CD. Zebrafish as a tool for the discovery of anticonvulsant compounds from botanical constituents. Eur J Pharmacol 2021; 908:174342. [PMID: 34265297 DOI: 10.1016/j.ejphar.2021.174342] [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: 04/05/2021] [Revised: 06/23/2021] [Accepted: 07/11/2021] [Indexed: 02/06/2023]
Abstract
Epilepsy affects about 65 million people in the world, which makes this disease a public health problem. In addition to the incidence of recurrent seizures, this neurological condition also culminates in cognitive, psychological, behavioral, and social consequences to the patients. Epilepsy treatment is based on the use of drugs that aim to inhibit repetitive neuronal discharges, and consequently, the recurrence of seizures. However, despite the large number of antiepileptic drugs currently available, about 30-40% of patients with epilepsy do not respond satisfactorily to treatments. Therefore, the investigation of new therapeutic alternatives for epilepsy becomes relevant, especially the search for new compounds with anticonvulsant properties. The therapeutic potential of plant-derived bioactive compounds has been a target for alternative treatments for epilepsy. The use of animal models for drug screening, such as zebrafish, contributes to a better understanding of the mechanisms involved in seizures and for investigating methods and alternative treatments to decrease seizure incidence. The sensitivity of zebrafish to chemoconvulsants and its use in genetic approaches reinforces the contribution of this animal to epilepsy research. Moreover, we summarize advances in zebrafish-based studies that focus on plant-derived bioactive compounds with potential antiseizure properties, contributing to the screening of new drugs for epilepsy treatment.
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Affiliation(s)
- Kanandra Taisa Bertoncello
- Laboratório de Neuroquímica e Psicofarmacologia, Programa de Pós-Graduação em Biologia Celular e Molecular, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Carla Denise Bonan
- Laboratório de Neuroquímica e Psicofarmacologia, Programa de Pós-Graduação em Biologia Celular e Molecular, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil.
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17
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Brillatz T, Jacmin M, Queiroz EF, Marcourt L, Morin H, Shahbazi N, Boulens N, Riva A, Crawford AD, Allémann E, Wolfender JL. Identification of Potential Antiseizure Agents in Boswellia sacra using In Vivo Zebrafish and Mouse Epilepsy Models. ACS Chem Neurosci 2021; 12:1791-1801. [PMID: 33926190 DOI: 10.1021/acschemneuro.1c00044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The resin of the tree Boswellia sacra Flueck. (synonym: B. carterii; Burseraceae), also known as "frankincense", is a traditional remedy used for central nervous system disorders in East Africa. Here we report the evaluation of its antiseizure activity in zebrafish and mouse epilepsy models to identify novel antiseizure compounds. The resin was extracted by solvents of increasing polarity. The hexane extract demonstrated the strongest antiseizure activity and was therefore subjected to bioactivity-guided isolation, which leaded to the isolation of eight terpene derivatives. A new prenylbicyclogermacrene derivative (2) was isolated along with seven other compounds (1, 3-8). Among them, the triterpene β-boswellic acid (5) showed the strongest activity and reduced 90% of pentylenetetrazole (PTZ)-induced seizures at 100 μg/mL. In parallel to B. sacra, a commercial extract of Boswellia serrata was also evaluated and showed moderate bioactivity (45% reduction at 30 μg/mL). The extract of B. serrata was subjected to targeted isolation of other boswellic acid derivatives (9-13), which were evaluated for antiseizure activity in comparison with 5. In the whole series, β-boswellic acid (5) was the most active (60% reduction at 200 μM), and its potency was also confirmed with its purchased standard (S5). Pure nanoparticles of S5 and a commercially formulated extract of B. serrata were tested in a PTZ-kindling mouse seizure model. This notably revealed that the S5 administration reduced seizures by 50% in this mouse model, which was consistent with its detection and quantification in plasma and brain samples. This study and the preclinical evaluation performed indicate that β-boswellic acid, common to various species of Boswellia, has some potential as an antiseizure agent.
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Affiliation(s)
- Théo Brillatz
- School of Pharmaceutical Sciences, University of Geneva, CMU−Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU−Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
| | - Maxime Jacmin
- Luxembourg Centre for Systems Biomedicine, Université du Luxembourg, 6, avenue du Swing, 4367 Belvaux, Luxembourg
- Theracule S.á r.l., 9, avenue des Hauts-Fourneaux, 4362 Belval, Luxembourg
| | - Emerson F. Queiroz
- School of Pharmaceutical Sciences, University of Geneva, CMU−Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU−Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
| | - Laurence Marcourt
- School of Pharmaceutical Sciences, University of Geneva, CMU−Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU−Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
| | - Hugo Morin
- School of Pharmaceutical Sciences, University of Geneva, CMU−Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU−Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
| | - Nargess Shahbazi
- Department of Preclinical Sciences & Pathology, Norwegian University of Life Sciences, Ullevålsveien 72, 0454 Oslo, Norway
| | - Nathalie Boulens
- School of Pharmaceutical Sciences, University of Geneva, CMU−Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU−Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
| | | | - Alexander D. Crawford
- Luxembourg Centre for Systems Biomedicine, Université du Luxembourg, 6, avenue du Swing, 4367 Belvaux, Luxembourg
- Theracule S.á r.l., 9, avenue des Hauts-Fourneaux, 4362 Belval, Luxembourg
- Department of Preclinical Sciences & Pathology, Norwegian University of Life Sciences, Ullevålsveien 72, 0454 Oslo, Norway
| | - Eric Allémann
- School of Pharmaceutical Sciences, University of Geneva, CMU−Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU−Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, CMU−Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU−Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
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Viet Cuong LC, Nhi NPK, Ha TP, Anh LT, Dat TTH, Oanh PTT, Phuong NTM, Thu VTK, Duc HV, Anh HLT. A new steroidal saponin from the aerial parts of Solanum torvum. Nat Prod Res 2021; 36:4892-4897. [PMID: 33813958 DOI: 10.1080/14786419.2021.1908282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
A new steroidal saponin, torvoside R (1), was isolated along with torvoside Q (2) and macaoside (3) from dichloromethane soluble-portion of the aerial parts of Solanum torvum. Their chemical structures were elucidated using HRESIMS, 1 D- and 2 D-NMR as well as comparison with those reported in the literature. All isolated compounds (1 - 3) exhibited cytotoxicity against SK-LU-1, HepG2, MCF-7, and T24 cancer cell lines with IC50 values ranging from 14.18 to 89.31 µg/mL.
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Affiliation(s)
- Le Canh Viet Cuong
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Nguyen Phuc Khanh Nhi
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Tran Phuong Ha
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Le Tuan Anh
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Ton That Huu Dat
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Phung Thi Thuy Oanh
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Nguyen Thi Minh Phuong
- Faculty of Environment and Chemical Engineering, Duy Tan University (DTU), Da Nang, Vietnam
| | - Vo Thi Kim Thu
- Faculty of Food Science and Technology, Thu Dau Mot University, Thu Dau Mot, Vietnam
| | - Ho Viet Duc
- Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
| | - Hoang Le Tuan Anh
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam.,Center for Research and Technology Transfer, VAST, Hanoi, Vietnam
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Pieróg M, Socała K, Doboszewska U, Wyska E, Guz L, Szopa A, Serefko A, Poleszak E, Wlaź P. Effects of classic antiseizure drugs on seizure activity and anxiety-like behavior in adult zebrafish. Toxicol Appl Pharmacol 2021; 415:115429. [PMID: 33524447 DOI: 10.1016/j.taap.2021.115429] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 01/06/2021] [Accepted: 01/26/2021] [Indexed: 12/21/2022]
Abstract
The zebrafish is extensively used as a model organism for studying several disorders of the central nervous system (CNS), including epilepsy. Some antiseizure drugs (ASDs) have been shown to produce discrepant results in larvae and adults zebrafish, therefore, their anticonvulsant efficacy in subsequent stages of the pentylenetetrazole (PTZ)-induced seizures should be more precisely characterized. The purpose of this study was to investigate behavioral effects of five classic ASDs: valproate (VPA), phenytoin (PHT), carbamazepine (CBZ), diazepam (DZP), and phenobarbital (PB) administered intraperitoneally (i.p.) in the PTZ-induced seizure test in adult zebrafish. We determined the time of maximal effect and the dose-response relationship of the studied ASDs. Furthermore, we assessed changes in the locomotor activity and the anxiety-like behavior in the color preference test. Moreover, drug concentrations in zebrafish homogenates were examined. VPA, DZP, and PB significantly increased the seizure latency at three subsequent stages of seizures (SI-SIII). PHT produced the anticonvulsant-like effect at SI and SII, while CBZ was effective at SII and SIII. Only DZP decreased zebrafish locomotor activity. A strong anxiolytic-like effect was observed after administration of PHT and PB. A weak anxiolytic-like effect occurred after treatment with VPA and DZP. The HPLC analysis showed the average concentrations of the studied ASDs in the fish body during the maximum anticonvulsant activity of each drug. Our results confirm the advantages of using zebrafish with the mature CNS over larval models and its utility to investigate some neuropharmacological properties of the tested drugs.
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Affiliation(s)
- Mateusz Pieróg
- Department of Animal Physiology and Pharmacology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, PL 20-033 Lublin, Poland.
| | - Katarzyna Socała
- Department of Animal Physiology and Pharmacology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, PL 20-033 Lublin, Poland
| | - Urszula Doboszewska
- Department of Animal Physiology and Pharmacology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, PL 20-033 Lublin, Poland
| | - Elżbieta Wyska
- Department of Pharmacokinetics and Physical Pharmacy, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Leszek Guz
- Department of Fish Diseases and Biology, Institute of Biological Bases of Animal Diseases, University of Life Sciences, Akademicka 12, PL 20-033 Lublin, Poland
| | - Aleksandra Szopa
- Laboratory of Preclinical Testing, Chair and Department of Applied and Social Pharmacy, Medical University of Lublin, Chodźki 1, PL 20-093, Lublin, Poland
| | - Anna Serefko
- Laboratory of Preclinical Testing, Chair and Department of Applied and Social Pharmacy, Medical University of Lublin, Chodźki 1, PL 20-093, Lublin, Poland
| | - Ewa Poleszak
- Laboratory of Preclinical Testing, Chair and Department of Applied and Social Pharmacy, Medical University of Lublin, Chodźki 1, PL 20-093, Lublin, Poland
| | - Piotr Wlaź
- Department of Animal Physiology and Pharmacology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, PL 20-033 Lublin, Poland.
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20
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Gong G, Chen H, Kam H, Chan G, Tang YX, Wu M, Tan H, Tse YC, Xu HX, Lee SMY. In Vivo Screening of Xanthones from Garcinia oligantha Identified Oliganthin H as a Novel Natural Inhibitor of Convulsions. JOURNAL OF NATURAL PRODUCTS 2020; 83:3706-3716. [PMID: 33296199 DOI: 10.1021/acs.jnatprod.0c00963] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Epilepsy is a chronic neurological disorder, characterized by recurrent, spontaneous, and transient seizures, and affects more than 70 million people worldwide. Although two dozen antiepileptic drugs (AEDs) are approved and available in the market, seizures remain poorly controlled in one-third of epileptic patients who are suffering from drug resistance or various adverse effects. Recently, the xanthone skeleton has been regarded as an attractive scaffold for the discovery and development of emerging anticonvulsants. We had isolated several dihydroxanthone derivatives previously, including oliganthin H, oliganthin I, and oliganthin N, whose structures were similar and delicately elucidated by spectrum analysis or X-ray crystallographic data, from extracts of leaves of Garcinia oligantha. These xanthone analogues were evaluated for anticonvulsant activity, and a novel xanthone, oliganthin H, has been identified as a sound and effective natural inhibitor of convulsions in zebrafish in vivo. A preliminary structure-activity relationship analysis on the relationship between structures of the xanthone analogues and their activities was also conducted. Oliganthin H significantly suppressed convulsant behavior and reduced to about 25% and 50% of PTZ-induced activity, in 12.5 and 25 μM treatment groups (P < 0.01 and 0.001), respectively. Meanwhile, it reduced seizure activity, velocity, seizure duration, and number of bursts in zebrafish larvae (P < 0.05). Pretreatment of oliganthin H significantly restored aberrant induction of gene expressions including npas4a, c-fos, pyya, and bdnf, as well as gabra1, gad1, glsa, and glula, upon PTZ treatment. In addition, in silico analysis revealed the stability of the oliganthin H-GABAA receptor complex and their detailed binding pattern. Therefore, direct interactions with the GABAA receptor and involvement of downstream GABA-glutamate pathways were possible mechanisms of the anticonvulsant action of oliganthin H. Our findings present the anticonvulsant activity of oliganthin H, provide a novel scaffold for further modifications, and highlight the xanthone skeleton as an attractive and reliable resource for the development of emerging AEDs.
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Affiliation(s)
- Guiyi Gong
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
- The Second Affiliated Hospital, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Hanbin Chen
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Hiotong Kam
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Ging Chan
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Yue-Xun Tang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Man Wu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Hongsheng Tan
- Clinical Research Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200240, China
| | - Yu-Chung Tse
- Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Department of Biology, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Hong-Xi Xu
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Simon Ming-Yuen Lee
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
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21
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Brillatz T, Jacmin M, Vougogiannopoulou K, Petrakis EA, Kalpoutzakis E, Houriet J, Pellissier L, Rutz A, Marcourt L, Queiroz EF, Crawford AD, Skaltsounis AL, Wolfender JL. Antiseizure potential of the ancient Greek medicinal plant Helleborus odorus subsp. cyclophyllus and identification of its main active principles. JOURNAL OF ETHNOPHARMACOLOGY 2020; 259:112954. [PMID: 32445663 DOI: 10.1016/j.jep.2020.112954] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/22/2020] [Accepted: 05/06/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ethnopharmacological data and ancient texts support the use of black hellebore (Helleborus odorus subsp. cyclophyllus, Ranunculaceae) for the management and treatment of epilepsy in ancient Greece. AIM OF THE STUDY A pharmacological investigation of the root methanolic extract (RME) was conducted using the zebrafish epilepsy model to isolate and identify the compounds responsible for a potential antiseizure activity and to provide evidence of its historical use. In addition, a comprehensive metabolite profiling of this studied species was proposed. MATERIALS AND METHODS The roots were extracted by solvents of increasing polarity and root decoction (RDE) was also prepared. The extracts were evaluated for antiseizure activity using a larval zebrafish epilepsy model with pentylenetetrazole (PTZ)-induced seizures. The RME exhibited the highest antiseizure activity and was therefore selected for bioactivity-guided fractionation. Isolated compounds were fully characterized by NMR and high-resolution tandem mass spectrometry (HRMS/MS). The UHPLC-HRMS/MS analyses of the RME and RDE were used for dereplication and metabolite profiling. RESULTS The RME showed 80% inhibition of PTZ-induced locomotor activity (300 μg/ml). This extract was fractionated and resulted in the isolation of a new glucopyranosyl-deoxyribonolactone (1) and a new furostanol saponin derivative (2), as well as of 20-hydroxyecdysone (3), hellebrin (4), a spirostanol glycoside derivative (5) and deglucohellebrin (6). The antiseizure activity of RME was found to be mainly due to the new furostanol saponin (2) and hellebrin (4), which reduced 45% and 60% of PTZ-induced seizures (135 μM, respectively). Besides, the aglycone of hellebrin, hellebrigenin (S34), was also active (45% at 7 μM). To further characterize the chemical composition of both RME and RDE, 30 compounds (A7-33, A35-37) were annotated based on UHPLC-HRMS/MS metabolite profiling. This revealed the presence of additional bufadienolides, furostanols, and evidenced alkaloids. CONCLUSIONS This study is the first to identify the molecular basis of the ethnopharmacological use of black hellebore for the treatment of epilepsy. This was achieved using a microscale zebrafish epilepsy model to rapidly quantify in vivo antiseizure activity. The UHPLC-HRMS/MS profiling revealed the chemical diversity of the extracts and the presence of numerous bufadienolides, furostanols and ecdysteroids, also present in the decoction.
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Affiliation(s)
- Théo Brillatz
- School of Pharmaceutical Sciences, Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel Servet 1, CH-1211, Geneva 4, Switzerland
| | - Maxime Jacmin
- Luxembourg Centre for Systems Biomedicine, Université du Luxembourg 6, Avenue du Swing, 4367, Belvaux, Luxembourg; Theracule S.á r.l., 9, Avenue des Hauts-Fourneaux, 4362, Belval, Luxembourg
| | - Konstantina Vougogiannopoulou
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771, Athens, Greece
| | - Eleftherios A Petrakis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771, Athens, Greece
| | - Eleftherios Kalpoutzakis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771, Athens, Greece
| | - Joëlle Houriet
- School of Pharmaceutical Sciences, Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel Servet 1, CH-1211, Geneva 4, Switzerland
| | - Léonie Pellissier
- School of Pharmaceutical Sciences, Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel Servet 1, CH-1211, Geneva 4, Switzerland
| | - Adriano Rutz
- School of Pharmaceutical Sciences, Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel Servet 1, CH-1211, Geneva 4, Switzerland
| | - Laurence Marcourt
- School of Pharmaceutical Sciences, Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel Servet 1, CH-1211, Geneva 4, Switzerland
| | - Emerson Ferreira Queiroz
- School of Pharmaceutical Sciences, Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel Servet 1, CH-1211, Geneva 4, Switzerland
| | - Alexander D Crawford
- Luxembourg Centre for Systems Biomedicine, Université du Luxembourg 6, Avenue du Swing, 4367, Belvaux, Luxembourg; Theracule S.á r.l., 9, Avenue des Hauts-Fourneaux, 4362, Belval, Luxembourg; Department of Preclinical Sciences & Pathology, Norwegian University of Life Sciences, Ullevålsveien 72, 0454, Oslo, Norway
| | - Alexios-Leandros Skaltsounis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771, Athens, Greece.
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel Servet 1, CH-1211, Geneva 4, Switzerland.
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22
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Brillatz T, Kubo M, Takahashi S, Jozukuri N, Takechi K, Queiroz EF, Marcourt L, Allard PM, Fish R, Harada K, Ishizawa K, Crawford AD, Fukuyama Y, Wolfender JL. Metabolite Profiling of Javanese Ginger Zingiber purpureum and Identification of Antiseizure Metabolites via a Low-Cost Open-Source Zebrafish Bioassay-Guided Isolation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:7904-7915. [PMID: 32628839 DOI: 10.1021/acs.jafc.0c02641] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The rhizomes of Zingiber purpureum, "Bangle", were investigated for its antiseizure properties using a streamlined and cost-effective zebrafish screening strategy and a mouse epilepsy assay. Its hexane extract demonstrated strong antiseizure activity in zebrafish epilepsy assay and was, therefore, selected for bioactivity-guided fractionation. Twelve compounds (1-12) were isolated, and two bioactive phenylbutenoids, trans- (11) and cis-banglene (12), reduced up to 70% of pentylenetetrazole (PTZ)-induced seizures. These compounds showed moderate activity against PTZ-induced seizures in a mouse epilepsy assay. To understand the specificity of Z. purpureum active compounds, its chemical profile was compared to that of Z. officinale. Their composition was assessed by differential metabolite profiling visualized by a molecular network, which revealed only vanillin derivatives and terpenoids as common metabolites and gave a comprehensive view of Z. purpureum composition. This study demonstrates the efficacy of a streamlined zebrafish epilepsy assay, which is therefore suitable for routine screening in phytochemistry laboratories.
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Affiliation(s)
- Théo Brillatz
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU-Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
| | - Miwa Kubo
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, Japan
| | - Shimon Takahashi
- Department of Clinical Pharmacology and Therapeutics, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Natsumi Jozukuri
- Department of Clinical Pharmacology and Therapeutics, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | | | - Emerson Ferreira Queiroz
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU-Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
| | - Laurence Marcourt
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU-Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
| | - Pierre-Marie Allard
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU-Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
| | - Richard Fish
- Department of Genetic Medicine and Development, University of Geneva, Faculty of Medicine, CMU-Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
| | - Kenichi Harada
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, Japan
| | - Keisuke Ishizawa
- Department of Clinical Pharmacology and Therapeutics, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Alexander D Crawford
- Department of Preclinical Sciences & Pathology, Norwegian University of Life Sciences, Ulleva°lsveien 72, 0454 Oslo, Norway
| | - Yoshiyasu Fukuyama
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, Japan
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU-Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
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23
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Viet Cuong LC, Lien LT, Minh Phuong NT, Kim Thu VT, Phuong Ha T, Huu Dat TT, Hai Ha PT, Anh TTP, Tuan Anh HL. Cytotoxic activity of steroidal glycosides from the aerial parts of Solanum torvum collected in Thua Thien Hue, Vietnam. Nat Prod Res 2020; 35:5502-5507. [PMID: 32608263 DOI: 10.1080/14786419.2020.1788022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
A phytochemical investigation of Solanum torvum led to the isolation of eleven steroidal glycosides, including neochlorogenin 6-O-β-D-quinovopyranoside (1), (22 R,23S,25R)-3β-6α,23-trihydroxy-5α-spirostane 6-O-β-D-xylopyranosyl-(1→3)-β-D-quinovopyranoside (2), neochlorogenin 6-O-α-L-rhamnopyranosyl-(1→3)-β-D-quinovopyranoside (3), solagenin 6-O-α-L-rhamnopyranosyl-(1→3)-β-D-quinovopyranoside (4), paniculonin A (5), paniculonin B (6), 6α-O-[β-D-xylopyranosyl-(1→3)β-D-quinovopyranosyl]-(25S)-5α-spirostan-3β-ol (7), torvoside J (8), torvoside K (9), torvoside L (10) and solagenin 6-O-β-D-quinovopyranoside (11). Their chemical structures were elucidated by 1D-NMR and 2D-NMR data as well as comparison with the data reported in the literature. Moreover, all isolated compounds were evaluated for their cytotoxic activities against SK-LU-1, HepG2, MCF-7 and T24 cancer cell lines. Among them, compounds 1, 3, 7 and 11 exhibited cytotoxicity against all four tested cell lines with IC50 values ranging from 7.89 ± 0.87 to 46.76 ± 3.88 µM.
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Affiliation(s)
- Le Canh Viet Cuong
- Mientrung Institute for Scientific Research,Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam.,Graduate University of Science and Technology (VAST), Hanoi, Vietnam
| | - Le Thi Lien
- Mientrung Institute for Scientific Research,Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Nguyen Thi Minh Phuong
- Faculty of Environment and Chemical Engineering, Duy Tan University (DTU), Da Nang, Vietnam
| | - Vo Thi Kim Thu
- Faculty of Food Science and Technology, Thu Dau Mot University, Thu Dau Mot, Vietnam
| | - Tran Phuong Ha
- Mientrung Institute for Scientific Research,Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Ton That Huu Dat
- Mientrung Institute for Scientific Research,Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Pham Thi Hai Ha
- Faculty of Biotechnology, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | | | - Hoang Le Tuan Anh
- Mientrung Institute for Scientific Research,Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam.,Graduate University of Science and Technology (VAST), Hanoi, Vietnam
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Gawel K, Langlois M, Martins T, van der Ent W, Tiraboschi E, Jacmin M, Crawford AD, Esguerra CV. Seizing the moment: Zebrafish epilepsy models. Neurosci Biobehav Rev 2020; 116:1-20. [PMID: 32544542 DOI: 10.1016/j.neubiorev.2020.06.010] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/20/2020] [Accepted: 06/05/2020] [Indexed: 12/14/2022]
Abstract
Zebrafish are now widely accepted as a valuable animal model for a number of different central nervous system (CNS) diseases. They are suitable both for elucidating the origin of these disorders and the sequence of events culminating in their onset, and for use as a high-throughput in vivo drug screening platform. The availability of powerful and effective techniques for genome manipulation allows the rapid modelling of different genetic epilepsies and of conditions with seizures as a core symptom. With this review, we seek to summarize the current knowledge about existing epilepsy/seizures models in zebrafish (both pharmacological and genetic) and compare them with equivalent rodent and human studies. New findings obtained from the zebrafish models are highlighted. We believe that this comprehensive review will highlight the value of zebrafish as a model for investigating different aspects of epilepsy and will help researchers to use these models to their full extent.
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Affiliation(s)
- Kinga Gawel
- Chemical Neuroscience Group, Centre for Molecular Medicine Norway (NCMM), University of Oslo, Gaustadalléen 21, Forskningsparken, 0349, Oslo, Norway; Department of Experimental and Clinical Pharmacology, Medical University of Lublin, Jaczewskiego St. 8b, 20-090, Lublin, Poland
| | | | - Teresa Martins
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Belval, Luxembourg
| | - Wietske van der Ent
- Chemical Neuroscience Group, Centre for Molecular Medicine Norway (NCMM), University of Oslo, Gaustadalléen 21, Forskningsparken, 0349, Oslo, Norway
| | - Ettore Tiraboschi
- Chemical Neuroscience Group, Centre for Molecular Medicine Norway (NCMM), University of Oslo, Gaustadalléen 21, Forskningsparken, 0349, Oslo, Norway; Neurophysics Group, Center for Mind/Brain Sciences, University of Trento, Piazza Manifattura 1, Building 14, 38068, Rovereto, TN, Italy
| | - Maxime Jacmin
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Belval, Luxembourg
| | - Alexander D Crawford
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Belval, Luxembourg; Faculty of Veterinary Medicine, Norwegian University of Life Sciences (NMBU), Oslo, Norway
| | - Camila V Esguerra
- Chemical Neuroscience Group, Centre for Molecular Medicine Norway (NCMM), University of Oslo, Gaustadalléen 21, Forskningsparken, 0349, Oslo, Norway.
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25
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Brillatz T, Jacmin M, Queiroz EF, Marcourt L, Slacanin I, Petit C, Carrupt PA, Bum EN, Herrling P, Crawford AD, Wolfender JL. Zebrafish bioassay-guided isolation of antiseizure compounds from the Cameroonian medicinal plant Cyperus articulatus L. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2020; 70:153175. [PMID: 32302934 DOI: 10.1016/j.phymed.2020.153175] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 01/10/2020] [Accepted: 01/18/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Epilepsy is a chronic neurological disorder affecting more than 50 million people worldwide, of whom 80% live in low- and middle-income countries. Due to the limited availability of antiseizure drugs (ASDs) in these countries, medicinal plants are the first-line treatment for most epilepsy patients. In Cameroon, a decoction of Cyperus articulatus L. rhizomes is traditionally used to treat epilepsy. PURPOSE The aim of this study was to identify and isolate the active compounds responsible for the antiseizure activity of C. articulatus in order to confirm both its traditional medicinal usage and previous in vivo studies on extracts of this plant in mouse epilepsy models. METHODS The dried rhizomes of C. articulatus were extracted with solvents of increasing polaritie (hexane, dichloromethane, methanol and water). A traditional decoction and an essential oil were also prepared. These extracts were evaluated for antiseizure activity using a larval zebrafish seizure model with seizures induced by the GABAA antagonist pentylenetetrazole (PTZ). The hexane extract demonstrated the highest antiseizure activity and was therefore selected for bioassay-guided fractionation. The isolated bioactive compounds were characterized by classical spectroscopic methods. Since they were found to be volatile, they were quantified by GC-FID. In addition, the absorption of the active compounds through the gastrointestinal tract and the blood-brain barrier was evaluated using a hexadecane and a blood-brain barrier parallel artificial membrane permeability assays (HDM-PAMPA and PAMPA-BBB). RESULTS The hexane extract of C. articulatus exhibited the highest antiseizure activity with a reduction of 93% of PTZ-induced seizures, and was therefore subjected to bioassay-guided fractionation in order to isolate the active principles. Four sesquiterpenoids were identified as cyperotundone (1), mustakone (2), 1,2-dehydro-α-cyperone (3) and sesquichamaenol (4) and exhibited significant antiseizure activity. These volatile compounds were quantified by GC in the hexane extract, the essential oil and the simulated traditional decoction. In addition, the constituents of the hexane extract including compounds 1 and 2 were found to cross the gastrointestinal barrier and the major compound 2 crossed the blood-brain barrier as well. CONCLUSION These results highlight the antiseizure activity of various sesquiterpene compounds from a hexane extract of C. articulatus dried rhizomes and support its use as a traditional treatment for epilepsy.
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Affiliation(s)
- Théo Brillatz
- Institute of Pharmaceutical Sciences of Western Switzerland, CMU - Rue Michel-Servet 1, Geneva 4 CH-1211, Switzerland
| | - Maxime Jacmin
- Luxembourg Centre for Systems Biomedicine, Université du Luxembourg, 6, avenue du Swing, Belvaux 4367, Luxembourg; Theracule S.á r.l., 9, avenue des Hauts-Fourneaux, Belval 4362, Luxembourg
| | - Emerson Ferreira Queiroz
- Institute of Pharmaceutical Sciences of Western Switzerland, CMU - Rue Michel-Servet 1, Geneva 4 CH-1211, Switzerland
| | - Laurence Marcourt
- Institute of Pharmaceutical Sciences of Western Switzerland, CMU - Rue Michel-Servet 1, Geneva 4 CH-1211, Switzerland
| | - Ivan Slacanin
- ILIS Institut & Laboratory, Chemin de la Passerelle 17, Bienne CH-2503, Switzerland
| | - Charlotte Petit
- Institute of Pharmaceutical Sciences of Western Switzerland, CMU - Rue Michel-Servet 1, Geneva 4 CH-1211, Switzerland
| | - Pierre-Alain Carrupt
- Institute of Pharmaceutical Sciences of Western Switzerland, CMU - Rue Michel-Servet 1, Geneva 4 CH-1211, Switzerland
| | - Elisabeth Ngo Bum
- Department of Biological Sciences, Faculty of Sciences, University of Ngaoundéré, P.O. Box 454, Ngaoundéré, Cameroon
| | - Paul Herrling
- Novartis Pharma Ltd., Research, Basel CH-4002, Switzerland
| | - Alexander D Crawford
- Luxembourg Centre for Systems Biomedicine, Université du Luxembourg, 6, avenue du Swing, Belvaux 4367, Luxembourg; Theracule S.á r.l., 9, avenue des Hauts-Fourneaux, Belval 4362, Luxembourg; Department of Preclinical Sciences & Pathology, Norwegian University of Life Sciences, Ullevålsveien 72, Oslo 0454, Norway
| | - Jean-Luc Wolfender
- Institute of Pharmaceutical Sciences of Western Switzerland, CMU - Rue Michel-Servet 1, Geneva 4 CH-1211, Switzerland.
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26
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Zebrafish as an Emerging Model for Bioassay-Guided Natural Product Drug Discovery for Neurological Disorders. MEDICINES 2019; 6:medicines6020061. [PMID: 31151179 PMCID: PMC6631710 DOI: 10.3390/medicines6020061] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 05/26/2019] [Accepted: 05/27/2019] [Indexed: 02/06/2023]
Abstract
Most neurodegenerative diseases are currently incurable, with large social and economic impacts. Recently, there has been renewed interest in investigating natural products in the modern drug discovery paradigm as novel, bioactive small molecules. Moreover, the discovery of potential therapies for neurological disorders is challenging and involves developing optimized animal models for drug screening. In contemporary biomedicine, the growing need to develop experimental models to obtain a detailed understanding of malady conditions and to portray pioneering treatments has resulted in the application of zebrafish to close the gap between in vitro and in vivo assays. Zebrafish in pharmacogenetics and neuropharmacology are rapidly becoming a widely used organism. Brain function, dysfunction, genetic, and pharmacological modulation considerations are enhanced by both larval and adult zebrafish. Bioassay-guided identification of natural products using zebrafish presents as an attractive strategy for generating new lead compounds. Here, we see evidence that the zebrafish's central nervous system is suitable for modeling human neurological disease and we review and evaluate natural product research using zebrafish as a vertebrate model platform to systematically identify bioactive natural products. Finally, we review recently developed zebrafish models of neurological disorders that have the potential to be applied in this field of research.
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Auditeau E, Chassagne F, Bourdy G, Bounlu M, Jost J, Luna J, Ratsimbazafy V, Preux PM, Boumediene F. Herbal medicine for epilepsy seizures in Asia, Africa and Latin America: A systematic review. JOURNAL OF ETHNOPHARMACOLOGY 2019; 234:119-153. [PMID: 30610931 DOI: 10.1016/j.jep.2018.12.049] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 12/29/2018] [Accepted: 12/30/2018] [Indexed: 06/09/2023]
Abstract
RELEVANCE More than 70 million people suffer epilepsy worldwide. Low availability of anti-epileptic drugs, side-effects and drug-resistant epilepsy affect the quality of life of persons with epilepsy in countries with a poorly developed health system. Herbal medicine is frequently used for this neurological condition. OBJECTIVES The main objective was to provide a detailed analysis of Herbal Medicine used for neurological conditions related with epilepsy in Asia, Africa and Latin America. More broadly, this study aims to highlight species with assessed efficacy (cross-cultural use, pharmacological effects on models of epileptic seizures) and safety (toxicological data in laboratory) information, in order to point out species of interest for further studies. A critical assessment of models used in pharmacological evaluations was done. MATERIALS AND METHODS The systematic search for Herbal Medicine treatments for epilepsy was performed considering all the articles published until February 2017 through three scientific databases. It was made with MeSH terms and free text defining the epilepsy seizures and plant species. We included studies carried out in Asia, Africa and Latin America. All articles reporting the use of Herbal Medicine to treat epilepsy seizures and/or their pharmacological evaluation were retained for further analysis. RESULTS The search yielded 1886 articles, from 30 countries. Hundred and six articles published between 1982 and 2017 were included, corresponding to a total of 497 use reports for 351 plant species belonging to 106 families. Three hundred and seventy seven use reports corresponding to 264 species in ethnopharmacological surveys and 120 evaluation reports corresponding to 107 species were noted. Twenty-nine reports, for 29 species, combined both ethnopharmacological and pharmacological evaluation. Fifty eight studies originated from Africa, 35 studies from Asia and 18 from Latin America. Highest use report was noted for rhizomes of Acorus calamus L. (12 use report in 1 country) and leaves of Bacopa monnieri (L.) Wettst. (8 use report in 2 countries). Therefore these species display the highest use convergence. Regarding pharmacological evaluation most studied species were: Leonotis leonurus (L.) R.Br. (4 evaluation reports in 1 country), Uncaria rhynchophylla (Miq.) Miq. ex Havil. (3 evaluation reports in 2 countries) and Calotropis gigantea (L.) Dryand. (3 evaluation reports in 1 country). In vivo models of chronic epilepsy were more relevant than in vitro models or chemical models inducing acute seizures for pharmacological assessment. CONCLUSION Species with the highest use report were not those with pharmacological evaluation. It will be pertinent to assess the pharmacological effects and safety of medicinal plants used mostly by traditional healers on predictive models of seizures.
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Affiliation(s)
- Emilie Auditeau
- INSERM, U1094, Tropical Neuroepidemiology, 2 rue du Dr Marcland, 87025 Limoges, France; Univ. Limoges, UMR 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, 2 rue du Dr Marcland, 87025 Limoges, France.
| | - François Chassagne
- UMR 152 Research Institute for the development, University Toulouse 3, Pharmaceutical sciences Faculty, 35 chemin des Maraîchers, 31400 Toulouse, France; Center for the Study of Human Health, Emory University, Atlanta, GA, USA.
| | - Geneviève Bourdy
- UMR 152 Research Institute for the development, University Toulouse 3, Pharmaceutical sciences Faculty, 35 chemin des Maraîchers, 31400 Toulouse, France.
| | - Mayoura Bounlu
- INSERM, U1094, Tropical Neuroepidemiology, 2 rue du Dr Marcland, 87025 Limoges, France; Institute of Francophonie for Tropical Medicine, Vientiane, Lao Democratic People's Republic.
| | - Jérémy Jost
- INSERM, U1094, Tropical Neuroepidemiology, 2 rue du Dr Marcland, 87025 Limoges, France; Univ. Limoges, UMR 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, 2 rue du Dr Marcland, 87025 Limoges, France.
| | - Jaime Luna
- INSERM, U1094, Tropical Neuroepidemiology, 2 rue du Dr Marcland, 87025 Limoges, France; Univ. Limoges, UMR 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, 2 rue du Dr Marcland, 87025 Limoges, France.
| | - Voa Ratsimbazafy
- INSERM, U1094, Tropical Neuroepidemiology, 2 rue du Dr Marcland, 87025 Limoges, France; Univ. Limoges, UMR 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, 2 rue du Dr Marcland, 87025 Limoges, France.
| | - Pierre-Marie Preux
- INSERM, U1094, Tropical Neuroepidemiology, 2 rue du Dr Marcland, 87025 Limoges, France; Univ. Limoges, UMR 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, 2 rue du Dr Marcland, 87025 Limoges, France.
| | - Farid Boumediene
- INSERM, U1094, Tropical Neuroepidemiology, 2 rue du Dr Marcland, 87025 Limoges, France; Univ. Limoges, UMR 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, 2 rue du Dr Marcland, 87025 Limoges, France.
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Aourz N, Serruys ASK, Chabwine JN, Balegamire PB, Afrikanova T, Edrada-Ebel R, Grey AI, Kamuhabwa AR, Walrave L, Esguerra CV, van Leuven F, de Witte PAM, Smolders I, Crawford AD. Identification of GSK-3 as a Potential Therapeutic Entry Point for Epilepsy. ACS Chem Neurosci 2019; 10:1992-2003. [PMID: 30351911 DOI: 10.1021/acschemneuro.8b00281] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
In view of the clinical need for new antiseizure drugs (ASDs) with novel modes of action, we used a zebrafish seizure model to screen the anticonvulsant activity of medicinal plants used by traditional healers in the Congo for the treatment of epilepsy, and identified a crude plant extract that inhibited pentylenetetrazol (PTZ)-induced seizures in zebrafish larvae. Zebrafish bioassay-guided fractionation of this anticonvulsant Fabaceae species, Indigofera arrecta, identified indirubin, a compound with known inhibitory activity of glycogen synthase kinase (GSK)-3, as the bioactive component. Indirubin, as well as the more potent and selective GSK-3 inhibitor 6-bromoindirubin-3'-oxime (BIO-acetoxime) were tested in zebrafish and rodent seizure assays. Both compounds revealed anticonvulsant activity in PTZ-treated zebrafish larvae, with electroencephalographic recordings revealing reduction of epileptiform discharges. Both indirubin and BIO-acetoxime also showed anticonvulsant activity in the pilocarpine rat model for limbic seizures and in the 6-Hz refractory seizure mouse model. Most interestingly, BIO-acetoxime also exhibited anticonvulsant actions in 6-Hz fully kindled mice. Our findings thus provide the first evidence for anticonvulsant activity of GSK-3 inhibition, thereby implicating GSK-3 as a potential therapeutic entry point for epilepsy. Our results also support the use of zebrafish bioassay-guided fractionation of antiepileptic medicinal plant extracts as an effective strategy for the discovery of new ASDs with novel mechanisms of action.
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Affiliation(s)
- Najat Aourz
- Center for Neurosciences (C4N), Research Group Experimental Pharmacology (EFAR/FASC), Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Ann-Sophie K. Serruys
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, University of Leuven, Leuven 3000, Belgium
| | - Joëlle N. Chabwine
- Salama Neuroscience Center, Bukavu, South Kivu BP 54, Democratic Republic of the Congo
| | | | - Tatiana Afrikanova
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, University of Leuven, Leuven 3000, Belgium
| | - RuAngelie Edrada-Ebel
- Strathclyde Institute of Pharmacy & Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, Scotland, U.K
| | - Alexander I. Grey
- Strathclyde Institute of Pharmacy & Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, Scotland, U.K
| | - Appolinary R. Kamuhabwa
- Department of Pharmacognosy, Muhimbili University of Health & Allied Sciences, Dar es Salaam 11000, Tanzania
| | - Laura Walrave
- Center for Neurosciences (C4N), Research Group Experimental Pharmacology (EFAR/FASC), Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Camila V. Esguerra
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, University of Leuven, Leuven 3000, Belgium
| | - Fred van Leuven
- Experimental Genetics Group (LEGTEGG), Department of Human Genetics, University of Leuven, Leuven 3000, Belgium
| | - Peter A. M. de Witte
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, University of Leuven, Leuven 3000, Belgium
| | - Ilse Smolders
- Center for Neurosciences (C4N), Research Group Experimental Pharmacology (EFAR/FASC), Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Alexander D. Crawford
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, University of Leuven, Leuven 3000, Belgium
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Liu M, Copmans D, Lu JG, Yang MR, Sourbron J, Ny A, Jiang ZH, de Witte PAM, Luyten W. Bioassay-guided isolation of anti-seizure principles from Semen Pharbitidis using a zebrafish pentylenetetrazol seizure model. JOURNAL OF ETHNOPHARMACOLOGY 2019; 232:130-134. [PMID: 30572093 DOI: 10.1016/j.jep.2018.12.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 12/15/2018] [Accepted: 12/15/2018] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Semen Pharbitidis, the seeds of Pharbitis nil (Linn.) Choisy (Convolvulaceae) is a well-known traditional Chinese medicinal plant used for treating helminthiasis and epilepsy in China. AIM OF THE STUDY This study aims to identify the anti-seizure components from Semen Pharbitidis. METHODS A bioassay-guided isolation of anti-seizure compounds from Semen Pharbitidis was performed using a zebrafish pentylenetetrazol seizure model. The structures of active compounds were elucidated by high resolution mass spectrometry. The fragments of active compounds were tested for anti-seizure activity as well. RESULTS The bioassay-guided isolation of ethanol extract of Semen Pharbitidis led to a group of resin glucosides, namely pharbitin. One of the fragments of pharbitin, 2-methylbutyric acid, also showed anti-seizure activity. CONCLUSIONS We provided further experimental scientific evidence to support the traditional use of Semen Pharbitidis for the treatment of epilepsy. Pharbitin was identified to be the main anti-seizure component in Semen Pharbitidis.
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Affiliation(s)
- Maoxuan Liu
- Department of Biology, Animal Physiology and Neurobiology section, KU Leuven, Naamsestraat 59, box 2465, 3000 Leuven, Belgium; Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49, 3000 Leuven, Belgium.
| | - Daniëlle Copmans
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Jing-Guang Lu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa 999078, Macau
| | - Ming-Rong Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa 999078, Macau
| | - Jo Sourbron
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Annelii Ny
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa 999078, Macau
| | - Peter A M de Witte
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49, 3000 Leuven, Belgium.
| | - Walter Luyten
- Department of Biology, Animal Physiology and Neurobiology section, KU Leuven, Naamsestraat 59, box 2465, 3000 Leuven, Belgium
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Hien TTT, Tuan HA, Huong DP, Van Luong H, Mai NTT, Tai BH, Van Kiem P. Two New Steroidal Saponins from Solanum procumbens. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801301009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Two new steroidal saponins, solaprocumosides A (1) and B (2), and a known compound paniculonin B (3) were isolated from the aerial parts of Solanum procumbens. Their chemical structures were determined by analysis of HR-ESI-MS and NMR spectra. Compound 1 had ketone functional groups at C-16 and C-22 of sterol skeleton which is rarely found in nature. Meanwhile, compound 2 could be form by oxidative breakdown C-20/C-22 bonding of a furostane-type saponin. Compounds 1–3 showed weak cytotoxicity against HepG2 cell line with IC50 values of 55.7 ± 1.5, 48.1 ± 2.2, and 78.3 ± 2.4 μM, respectively.
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Affiliation(s)
- Truong Thi Thu Hien
- Vietnam Military Medical University, 160 Phung Hung, Phuc La, Ha Dong, Hanoi, Vietnam
| | - Hoang Anh Tuan
- Vietnam Military Medical University, 160 Phung Hung, Phuc La, Ha Dong, Hanoi, Vietnam
| | - Do Phuong Huong
- Vietnam Military Hospital 103, 261 Phung Hung, Phuc La, Ha Dong, Hanoi, Vietnam
| | - Hoang Van Luong
- Vietnam Military Medical University, 160 Phung Hung, Phuc La, Ha Dong, Hanoi, Vietnam
| | - Ngo Thi Tuyet Mai
- Vietnam Military Medical University, 160 Phung Hung, Phuc La, Ha Dong, Hanoi, Vietnam
| | - Bui Huu Tai
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Phan Van Kiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
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Zhang S, Liu X, Sun M, Zhang Q, Li T, Li X, Xu J, Zhao X, Chen D, Feng X. Reversal of reserpine-induced depression and cognitive disorder in zebrafish by sertraline and Traditional Chinese Medicine (TCM). Behav Brain Funct 2018; 14:13. [PMID: 29898741 PMCID: PMC6001006 DOI: 10.1186/s12993-018-0145-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 06/01/2018] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND With increased social pressure, individuals face a high risk of depression. Subsequently, depression affects cognitive behaviour and negatively impacts daily life. Fortunately, the Traditional Chinese Medicine Jia Wei Xiao Yao (JWXY) capsule is effective in reducing depression and improving cognitive behaviour. METHODS The constituents of JWXY capsule were identified by ultra-performance liquid chromatography and quadrupole time-of-flight mass spectrometry analyses. We analysed behaviours of depression-like zebrafish in the novel tank with an automatic 3D video-tracking system and conducted the colour preference test, as well detected physiological changes after sertraline and JWXY capsule treatments. RESULTS Both sertraline and JWXY capsule rescued the decreased locomotive behaviour and depression phenotype of zebrafish caused by reserpine. JWXY capsule especially improved the inhibited exploratory behaviour caused by reserpine. In addition, with the onset of depressive behaviour, zebrafish exhibited alterations in cognitive behaviour as indicated by colour preference changes. However, compared with sertraline, JWXY capsule was more efficaciously in rescuing this change in the colour preference pattern. Moreover, an increased level of cortisol, increased expression of tyrosine hydroxylase (TH) and decreased monoamine neurotransmitters, including serotonin (5-HT) and noradrenaline, were involved in the depressive behaviours. In addition, sertraline and JWXY capsule rescued the depressive phenotype and cognitive behaviour of zebrafish by altering the levels of endogenous cortisol and monoamine neurotransmitters. CONCLUSIONS JWXY capsule was more effectively than sertraline in rescuing reserpine-induced depression and cognitive disorder in zebrafish. Potentially, our study can provide new insights into the clinical treatment of depression and the mechanism of action of JWXY capsule.
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Affiliation(s)
- Shuhui Zhang
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China
| | - Xiaodong Liu
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China
| | - Mingzhu Sun
- The Institute of Robotics and Automatic Information Systems, Nankai University, Tianjin, 300071, China
| | - Qiuping Zhang
- Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin, 300071, China
| | - Teng Li
- The Institute of Robotics and Automatic Information Systems, Nankai University, Tianjin, 300071, China
| | - Xiang Li
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China
| | - Jia Xu
- Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin, 300071, China
| | - Xin Zhao
- The Institute of Robotics and Automatic Information Systems, Nankai University, Tianjin, 300071, China.
| | - Dongyan Chen
- Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin, 300071, China.
| | - Xizeng Feng
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China.
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Muniandy Y. The Use of Larval Zebrafish (Danio rerio) Model for Identifying New Anxiolytic Drugs from Herbal Medicine. Zebrafish 2018; 15:321-339. [PMID: 29851363 DOI: 10.1089/zeb.2018.1562] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Anxiety is a widespread psychiatric disorder. The search for a cure is still continuing since many of the synthetic drugs were inefficient in completely treating anxiety, yet caused some dangerous side effects until many of the drugs were withdrawn from the market. One promising source of new anxiolytics could be herbal medicines. The challenge is to screen plant extracts. Rodent models can be used for this purpose but are expensive. Moreover, rodent tests are costly and consume relatively large quantities of sample. For this reason, alternative animal models may be useful. Zebrafish larvae have many advantages for screening natural products. The main advantage is that they can be produced cheaply and in large numbers. Several studies have shown that the zebrafish is a good model for studying drugs that affect anxiety. This review focuses on the use of animal models, including zebrafish larvae, for studying anxiety and screening for herbal medicines that modulate anxiety. Finally, future prospects of the zebrafish larva as an alternative model in this field are also discussed.
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Affiliation(s)
- Yuvendran Muniandy
- 1 Animal Sciences and Health, Faculty of Mathematics and Natural Sciences, Institute of Biology Leiden , Leiden, Netherlands .,2 Plant Sciences and Natural Products, Faculty of Mathematics and Natural Sciences, Institute of Biology Leiden , Leiden, Netherlands
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Zebrafish-based identification of the antiseizure nucleoside inosine from the marine diatom Skeletonema marinoi. PLoS One 2018; 13:e0196195. [PMID: 29689077 PMCID: PMC5916873 DOI: 10.1371/journal.pone.0196195] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 04/09/2018] [Indexed: 02/06/2023] Open
Abstract
With the goal of identifying neuroactive secondary metabolites from microalgae, a microscale in vivo zebrafish bioassay for antiseizure activity was used to evaluate bioactivities of the diatom Skeletonema marinoi, which was recently revealed as being a promising source of drug-like small molecules. A freeze-dried culture of S. marinoi was extracted by solvents with increasing polarities (hexane, dichloromethane, methanol and water) and these extracts were screened for anticonvulsant activity using a larval zebrafish epilepsy model with seizures induced by the GABAA antagonist pentylenetetrazole. The methanolic extract of S. marinoi exhibited significant anticonvulsant activity and was chosen for bioassay-guided fractionation, which associated the bioactivity with minor constituents. The key anticonvulsant constituent was identified as the nucleoside inosine, a well-known adenosine receptor agonist with previously reported antiseizure activities in mice and rat epilepsy models, but not reported to date as a bioactive constituent of microalgae. In addition, a UHPLC-HRMS metabolite profiling was used for dereplication of the other constituents of S. marinoi. Structures of the isolated compounds were elucidated by nuclear magnetic resonance and high-resolution spectrometry. These results highlight the potential of zebrafish-based screening and bioassay-guided fractionation to identify neuroactive marine natural products.
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Shams S, Rihel J, Ortiz JG, Gerlai R. The zebrafish as a promising tool for modeling human brain disorders: A review based upon an IBNS Symposium. Neurosci Biobehav Rev 2018; 85:176-190. [DOI: 10.1016/j.neubiorev.2017.09.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 08/28/2017] [Accepted: 09/02/2017] [Indexed: 12/12/2022]
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Moradi-Afrapoli F, Ebrahimi SN, Smiesko M, Hamburger M. HPLC-Based Activity Profiling for GABA A Receptor Modulators in Extracts: Validation of an Approach Utilizing a Larval Zebrafish Locomotor Assay. JOURNAL OF NATURAL PRODUCTS 2017; 80:1548-1557. [PMID: 28485933 DOI: 10.1021/acs.jnatprod.7b00081] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Gamma-aminobutyric acid type A (GABAA) receptors are major inhibitory neurotransmitter receptors in the central nervous system and a target for numerous clinically important drugs used to treat anxiety, insomnia, and epilepsy. A series of allosteric GABAA receptor agonists was identified previously with the aid of HPLC-based activity profiling, whereby activity was tracked with an electrophysiological assay in Xenopus laevis oocytes. To accelerate the discovery process, an approach has been established for HPLC-based profiling using a larval zebrafish (Danio rerio) seizure model induced by pentylenetetrazol (PTZ), a pro-convulsant GABAA receptor antagonist. The assay was validated with the aid of representative GABAergic plant compounds and extracts. Various parameters that are relevant for the quality of results obtained, including PTZ concentration, the number of larvae, the incubation time, and the data analysis protocol, were optimized. The assay was then translated into an HPLC profiling protocol, and active compounds were tracked in extracts of Valeriana officinalis and Magnolia officinalis. For selected compounds the effects in the zebrafish larvae model were compared with data from in silico blood-brain barrier (BBB) permeability predictions, to validate the use for discovery of BBB-permeable natural products.
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Affiliation(s)
| | - Samad Nejad Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University , G. C., Evin, Tehran, Iran
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Coulerie P, Ratinaud Y, Moco S, Merminod L, Naranjo Pinta M, Boccard J, Bultot L, Deak M, Sakamoto K, Queiroz EF, Wolfender JL, Barron D. Standardized LC×LC-ELSD Fractionation Procedure for the Identification of Minor Bioactives via the Enzymatic Screening of Natural Extracts. JOURNAL OF NATURAL PRODUCTS 2016; 79:2856-2864. [PMID: 27792327 DOI: 10.1021/acs.jnatprod.6b00628] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To identify natural bioactive compounds from complex mixtures such as plant extracts, efficient fractionation for biological screening is mandatory. In this context, a fully automated workflow based on two-dimensional liquid chromatography (2D-LC × LC) was developed, allowing for the production of hundreds of semipure fractions per extract. Moreover, the ELSD response was used for online sample weight estimation and automated concentration normalization for subsequent bioassays. To evaluate the efficiency of this protocol, an enzymatic assay was developed using AMP-activated protein kinase (AMPK). The activation of AMPK by nonactive extracts spiked with biochanin A, a known AMPK activator, was enhanced greatly when the fractionation workflow was applied compared to screening crude spiked extracts. The performance of the workflow was further evaluated on a red clover (Trifolium pratense) extract, which is a natural source of biochanin A. In this case, while the crude extract or 1D chromatography fractions failed to activate AMPK, semipure fractions containing biochanin A were readily localized when produced by the 2D-LC×LC-ELSD workflow. The automated fractionation methodology presented demonstrated high efficiency for the detection of bioactive compounds at low abundance in plant extracts for high-throughput screening. This procedure can be used routinely to populate natural product libraries for biological screening.
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Affiliation(s)
- Paul Coulerie
- Nestle Institute of Health Sciences , EPFL Innovation Park, H, CH-1015, Lausanne, Switzerland
- School of Pharmaceutical Sciences, EPGL, University of Geneva, University of Lausanne, CMU , 1, Rue Michel Servet, 1211, Geneva 4, Switzerland
| | - Yann Ratinaud
- Nestle Institute of Health Sciences , EPFL Innovation Park, H, CH-1015, Lausanne, Switzerland
| | - Sofia Moco
- Nestle Institute of Health Sciences , EPFL Innovation Park, H, CH-1015, Lausanne, Switzerland
| | - Loraine Merminod
- Nestle Institute of Health Sciences , EPFL Innovation Park, H, CH-1015, Lausanne, Switzerland
| | - Martine Naranjo Pinta
- Nestle Institute of Health Sciences , EPFL Innovation Park, H, CH-1015, Lausanne, Switzerland
| | - Julien Boccard
- School of Pharmaceutical Sciences, EPGL, University of Geneva, University of Lausanne, CMU , 1, Rue Michel Servet, 1211, Geneva 4, Switzerland
| | - Laurent Bultot
- Nestle Institute of Health Sciences , EPFL Innovation Park, H, CH-1015, Lausanne, Switzerland
| | - Maria Deak
- Nestle Institute of Health Sciences , EPFL Innovation Park, H, CH-1015, Lausanne, Switzerland
| | - Kei Sakamoto
- Nestle Institute of Health Sciences , EPFL Innovation Park, H, CH-1015, Lausanne, Switzerland
| | - Emerson Ferreira Queiroz
- School of Pharmaceutical Sciences, EPGL, University of Geneva, University of Lausanne, CMU , 1, Rue Michel Servet, 1211, Geneva 4, Switzerland
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, EPGL, University of Geneva, University of Lausanne, CMU , 1, Rue Michel Servet, 1211, Geneva 4, Switzerland
| | - Denis Barron
- Nestle Institute of Health Sciences , EPFL Innovation Park, H, CH-1015, Lausanne, Switzerland
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Igor VFDS, Jonatas LD, Caio PF, Hady K, Jesus RRA, Josué AVM, Andrés N, José CTC. Use of zebrafish (Danio rerio) in experimental models for biological assay with natural products. ACTA ACUST UNITED AC 2016. [DOI: 10.5897/ajpp2016.4662] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Bertrand S, Azzollini A, Nievergelt A, Boccard J, Rudaz S, Cuendet M, Wolfender JL. Statistical Correlations between HPLC Activity-Based Profiling Results and NMR/MS Microfraction Data to Deconvolute Bioactive Compounds in Mixtures. Molecules 2016; 21:259. [PMID: 26927035 PMCID: PMC6274519 DOI: 10.3390/molecules21030259] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 01/18/2016] [Accepted: 01/25/2016] [Indexed: 11/20/2022] Open
Abstract
Recent approaches in natural product (NP) research are leading toward the discovery of bioactive chemical entities at the microgram level. In comparison to classical large scale bioassay-guided fractionation, the use of LC-MS metabolite profiling in combination with microfractionation for both bioactivity profiling and NMR analysis, allows the identification of bioactive compounds at a very early stage. In that context, this study aims to assess the potential of statistic correlation analysis to enable unambiguous identification of features related to bioactive compounds in mixtures, without the need for complete isolation. For that purpose, a mixture of NPs was microfractionated by rapid small-scale semi-preparative HPLC for proof-of-concept. UHPLC-ESI-TOFMS profiles, micro-flow CapNMR spectra and a cancer chemopreventive assay carried out on every microfraction were analysed by statistical correlations.
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Affiliation(s)
- Samuel Bertrand
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest-Ansermet 30, CH-1211 Geneva 4, Switzerland.
- Groupe Mer, Molécules, Santé-EA 2160, UFR des Sciences Pharmaceutiques et Biologiques, Université de Nantes, 9 Rue Bias, BP 53508, F-44035 Nantes, France.
| | - Antonio Azzollini
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest-Ansermet 30, CH-1211 Geneva 4, Switzerland.
| | - Andreas Nievergelt
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest-Ansermet 30, CH-1211 Geneva 4, Switzerland.
| | - Julien Boccard
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest-Ansermet 30, CH-1211 Geneva 4, Switzerland.
| | - Serge Rudaz
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest-Ansermet 30, CH-1211 Geneva 4, Switzerland.
| | - Muriel Cuendet
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest-Ansermet 30, CH-1211 Geneva 4, Switzerland.
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest-Ansermet 30, CH-1211 Geneva 4, Switzerland.
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Cunliffe VT. Building a zebrafish toolkit for investigating the pathobiology of epilepsy and identifying new treatments for epileptic seizures. J Neurosci Methods 2016. [DOI: 10.1016/j.jneumeth.2015.07.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Reversal of pentylenetetrazole-altered swimming and neural activity-regulated gene expression in zebrafish larvae by valproic acid and valerian extract. Psychopharmacology (Berl) 2016; 233:2533-47. [PMID: 27165438 PMCID: PMC4908174 DOI: 10.1007/s00213-016-4304-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 04/15/2016] [Indexed: 10/27/2022]
Abstract
RATIONALE Ethnopharmacology has documented hundreds of psychoactive plants awaiting exploitation for drug discovery. A robust and inexpensive in vivo system allowing systematic screening would be critical to exploiting this knowledge. OBJECTIVE The objective of this study was to establish a cheap and accurate screening method which can be used for testing psychoactive efficacy of complex mixtures of unknown composition, like plant crude extracts. METHODS We used automated recording of zebrafish larval swimming behavior during light vs. dark periods which we reproducibly altered with an anxiogenic compound, pentylenetetrazole (PTZ). First, we reversed this PTZ-altered swimming by co-treatment with a well-defined synthetic anxiolytic drug, valproic acid (VPA). Next, we aimed at reversing it by adding crude root extracts of Valeriana officinalis (Val) from which VPA was originally derived. Finally, we assessed how expression of neural activity-regulated genes (c-fos, npas4a, and bdnf) known to be upregulated by PTZ treatment was affected in the presence of Val. RESULTS Both VPA and Val significantly reversed the PTZ-altered swimming behaviors. Noticeably, Val at higher doses was affecting swimming independently of the presence of PTZ. A strong regulation of all three neural-activity genes was observed in Val-treated larvae which fully supported the behavioral results. CONCLUSIONS We demonstrated in a combined behavioral-molecular approach the strong psychoactivity of a natural extract of unknown composition made from V. officinalis. Our results highlight the efficacy and sensitivity of such an approach, therefore offering a novel in vivo screening system amenable to high-throughput testing of promising ethnobotanical candidates.
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Abhishek R, Thippeswamy S, Manjunath K, Mohana D. Antifungal and antimycotoxigenic potency of Solanum torvum
Swartz. leaf extract: isolation and identification of compound active against mycotoxigenic strains of Aspergillus flavus
and Fusarium verticillioides. J Appl Microbiol 2015; 119:1624-36. [DOI: 10.1111/jam.12956] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/16/2015] [Accepted: 09/15/2015] [Indexed: 12/19/2022]
Affiliation(s)
- R.U. Abhishek
- Department of Microbiology and Biotechnology; Bangalore University; Bengaluru India
| | - S. Thippeswamy
- Department of Microbiology and Biotechnology; Bangalore University; Bengaluru India
| | - K. Manjunath
- Department of Microbiology and Biotechnology; Bangalore University; Bengaluru India
| | - D.C. Mohana
- Department of Microbiology and Biotechnology; Bangalore University; Bengaluru India
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Wang Z, Li J, Zeng XD, Hu XM, Zhou X, Hong X. Synthesis and Pharmacological Evaluation of Novel Benzenesulfonamide Derivatives as Potential Anticonvulsant Agents. Molecules 2015; 20:17585-600. [PMID: 26404228 PMCID: PMC6331867 DOI: 10.3390/molecules200917585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/17/2015] [Accepted: 09/17/2015] [Indexed: 11/17/2022] Open
Abstract
A novel series of benzenesulfonamide derivatives containing 4-aminobenzenesul-fonamide and α-amides branched valproic acid or 2,2-dimethylcyclopropanecarboxylic acid moieties were synthesized and screened for their anticonvulsant activities in mice maximal electroshock seizure (MES) and subcutaneous pentylenetetrazole (scPTZ) test. The activity experimental study showed that 2,2-dipropyl-N¹-(4-sulfamoylphenyl)malonamide (18b) had the lowest median effective dose (ED50) of 16.36 mg/kg in MES test, and 2,2-dimethyl-N-(4-sulfamoylphenyl)cyclopropane-1,1-dicarboxamide (12c) had the lowest ED50 of 22.50 mg/kg in scPTZ test, which resulted in the protective indexe (PI) of 24.8 and 20.4, respectively. These promising data suggest the new compounds have good potential as new class of anticonvulsant agents with high effectiveness and low toxicity for the treatment of epilepsy.
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Affiliation(s)
- Zhiming Wang
- State Key Laboratory of Virology, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, 185 Donghu Road, Wuhan 430071, China.
| | - Jinping Li
- State Key Laboratory of Virology, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, 185 Donghu Road, Wuhan 430071, China.
| | - Xiao-Dong Zeng
- State Key Laboratory of Virology, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, 185 Donghu Road, Wuhan 430071, China.
| | - Xian-Ming Hu
- State Key Laboratory of Virology, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, 185 Donghu Road, Wuhan 430071, China.
| | - Xiaoju Zhou
- State Key Laboratory of Virology, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, 185 Donghu Road, Wuhan 430071, China.
| | - Xuechuan Hong
- State Key Laboratory of Virology, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, 185 Donghu Road, Wuhan 430071, China.
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Kurita KL, Linington RG. Connecting phenotype and chemotype: high-content discovery strategies for natural products research. JOURNAL OF NATURAL PRODUCTS 2015; 78:587-96. [PMID: 25728167 PMCID: PMC7505086 DOI: 10.1021/acs.jnatprod.5b00017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In recent years, the field of natural products has seen an explosion in the breadth, resolution, and accuracy of profiling platforms for compound discovery, including many new chemical and biological annotation methods. With these new tools come opportunities to examine extract libraries using systematized profiling approaches that were not previously available to the field and which offer new approaches for the detailed characterization of the chemical and biological attributes of complex natural products mixtures. This review will present a summary of some of these untargeted profiling methods and provide perspective on the future opportunities offered by integrating these tools for novel natural products discovery.
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Affiliation(s)
- Kenji L. Kurita
- Department of Chemistry and Biochemistry, University of California Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States
| | - Roger G. Linington
- Department of Chemistry and Biochemistry, University of California Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States
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Abstract
Components from venoms have stimulated many drug discovery projects, with some notable successes. These are briefly reviewed, from captopril to ziconotide. However, there have been many more disappointments on the road from toxin discovery to approval of a new medicine. Drug discovery and development is an inherently risky business, and the main causes of failure during development programmes are outlined in order to highlight steps that might be taken to increase the chances of success with toxin-based drug discovery. These include having a clear focus on unmet therapeutic needs, concentrating on targets that are well-validated in terms of their relevance to the disease in question, making use of phenotypic screening rather than molecular-based assays, and working with development partners with the resources required for the long and expensive development process.
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Affiliation(s)
- Alan L Harvey
- Research and Innovation Support, Dublin City University, Dublin 9, Ireland; Strathclyde Institute for Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK.
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