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Bradley SA, Hansson FG, Lehka BJ, Rago D, Pinho P, Peng H, Adhikari KB, Haidar AK, Hansen LG, Volkova D, Holtz M, Muyo Abad S, Ma X, Koudounas K, Besseau S, Gautron N, Mélin C, Marc J, Birer Williams C, Courdavault V, Jensen ED, Keasling JD, Zhang J, Jensen MK. Yeast Platforms for Production and Screening of Bioactive Derivatives of Rauwolscine. ACS Synth Biol 2024; 13:1498-1512. [PMID: 38635307 DOI: 10.1021/acssynbio.4c00039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Monoterpene indole alkaloids (MIAs) make up a highly bioactive class of metabolites produced by a range of tropical and subtropical plants. The corynanthe-type MIAs are a stereochemically complex subclass with therapeutic potential against a large number of indications including cancer, psychotic disorders, and erectile dysfunction. Here, we report yeast-based cell factories capable of de novo production of corynanthe-type MIAs rauwolscine, yohimbine, tetrahydroalstonine, and corynanthine. From this, we demonstrate regioselective biosynthesis of 4 fluorinated derivatives of these compounds and de novo biosynthesis of 7-chlororauwolscine by coexpression of a halogenase with the biosynthetic pathway. Finally, we capitalize on the ability of these cell factories to produce derivatives of these bioactive scaffolds to establish a proof-of-principle drug discovery pipeline in which the corynanthe-type MIAs are screened for bioactivity on human drug targets, expressed in yeast. In doing so, we identify antagonistic and agonistic behavior against the human adrenergic G protein-coupled receptors ADRA2A and ADRA2B, and the serotonergic receptor 5HT4b, respectively. This study thus demonstrates a proto-drug discovery pipeline for bioactive plant-inspired small molecules based on one-pot biocatalysis of natural and new-to-nature corynanthe-type MIAs in yeast.
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Affiliation(s)
- Samuel A Bradley
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Frederik G Hansson
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Beata J Lehka
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Daniela Rago
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Pedro Pinho
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Huadong Peng
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Khem B Adhikari
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Ahmad K Haidar
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Lea G Hansen
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
- Biomia ApS, DK-2100 Copenhagen, Denmark
| | - Daria Volkova
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Maxence Holtz
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Sergi Muyo Abad
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Xin Ma
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Konstantinos Koudounas
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, F-37200 Tours, France
| | - Sébastien Besseau
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, F-37200 Tours, France
| | - Nicolas Gautron
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, F-37200 Tours, France
| | - Céline Mélin
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, F-37200 Tours, France
| | - Jillian Marc
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, F-37200 Tours, France
| | - Caroline Birer Williams
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, F-37200 Tours, France
| | - Vincent Courdavault
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, F-37200 Tours, France
| | - Emil D Jensen
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Jay D Keasling
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
- Joint BioEnergy Institute, Emeryville, California 94608,United States
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720,United States
- Department of Chemical and Biomolecular Engineering, Department of Bioengineering, University of California, Berkeley, California 94720, United States
- Center for Synthetic Biochemistry, Institute for Synthetic Biology, Shenzhen Institutes of Advanced Technologies, Shenzhen 518055, China
| | - Jie Zhang
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
- Biomia ApS, DK-2100 Copenhagen, Denmark
| | - Michael K Jensen
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Lyngby, Denmark
- Biomia ApS, DK-2100 Copenhagen, Denmark
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Formagio ASN, Vilegas W, Kassuya CAL, De Almeida VP, Manfron J, Konkiewitz EC, Ziff EB, Faoro JAM, Dos Santos JM, Cecatto AJ, Sarragiotto MH, Mussury RM. A Comprehensive Description of the Anatomy and Histochemistry of Psychotria capillacea (Müll. Arg.) Standl. and an Investigation into Its Anti-Inflammatory Effects in Mice and Role in Scopolamine-Induced Memory Impairment. Pharmaceuticals (Basel) 2024; 17:564. [PMID: 38794135 PMCID: PMC11123824 DOI: 10.3390/ph17050564] [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: 02/19/2024] [Revised: 04/14/2024] [Accepted: 04/18/2024] [Indexed: 05/26/2024] Open
Abstract
Species of the genus Psychotria are used in popular medicine for pain, inflammatory symptoms, and mental disorders. Psychotria capillacea (Müll. Arg.) Standl. (Rubiaceae) is commonly known as coffee and some scientific studies have demonstrated its therapeutic potential. The goal of this study was to investigate the anti-inflammatory and neuroprotective effects, and acetylcholinesterase (AChE) inhibitory activity of a methanolic extract obtained from leaves of P. capillacea (MEPC), as well as the micromorphology and histochemistry of the leaves and stems of this plant. In addition, the MEPC was analyzed by UHPLC-MS/MS and the alkaloidal fraction (AF) obtained from the MEPC was tested in a mouse model of inflammation. MEPC contained three indole alkaloids, one sesquiterpene (megastigmane-type) and two terpene lactones. MEPC (3, 30 and 100 mg/kg) and AF (3 and 30 mg/kg) were evaluated in inflammation models and significantly inhibited edema at 2 h and 4 h, mechanical hyperalgesia after 4 h and the response to cold 3 h and 4 h after carrageenan injection. Scopolamine significantly increased the escape latency, and reduced the swimming time and number of crossings in the target quadrant and distance, while MEPC (3, 30 and 100 mg/kg), due to its neuroprotective actions, reversed these effects. AChE activity was significantly decreased in the cerebral cortex (52 ± 3%) and hippocampus (60 ± 3%), after MEPC administration. Moreover, micromorphological and histochemical information was presented, to aid in species identification and quality control of P. capillacea. The results of this study demonstrated that P. capillacea is an anti-inflammatory and antihyperalgesic agent that can treat acute disease and enhance memory functions in mouse models.
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Affiliation(s)
- Anelise Samara Nazari Formagio
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados 79825-070, MS, Brazil; (A.S.N.F.); (C.A.L.K.); (E.C.K.); (J.A.M.F.); (J.M.D.S.)
| | - Wagner Vilegas
- Institute of Biosciences, São Paulo State University—UNESP, São Vicente 11330-900, SP, Brazil;
| | - Cândida Aparecida Leite Kassuya
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados 79825-070, MS, Brazil; (A.S.N.F.); (C.A.L.K.); (E.C.K.); (J.A.M.F.); (J.M.D.S.)
| | - Valter Paes De Almeida
- Posgraduate Program in Pharmaceutical Sciences, State University of Ponta Grossa, Ponta Grossa 84010-330, PR, Brazil; (V.P.D.A.); (J.M.)
| | - Jane Manfron
- Posgraduate Program in Pharmaceutical Sciences, State University of Ponta Grossa, Ponta Grossa 84010-330, PR, Brazil; (V.P.D.A.); (J.M.)
| | - Elisabete Castelon Konkiewitz
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados 79825-070, MS, Brazil; (A.S.N.F.); (C.A.L.K.); (E.C.K.); (J.A.M.F.); (J.M.D.S.)
| | - Edward Benjamin Ziff
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York University, New York City, NY 10012, USA;
| | - Janaine Alberto Marangoni Faoro
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados 79825-070, MS, Brazil; (A.S.N.F.); (C.A.L.K.); (E.C.K.); (J.A.M.F.); (J.M.D.S.)
| | - Jessica Maurino Dos Santos
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados 79825-070, MS, Brazil; (A.S.N.F.); (C.A.L.K.); (E.C.K.); (J.A.M.F.); (J.M.D.S.)
| | - Ana Julia Cecatto
- Department of Chemistry, State University of Maringá, Maringá 87020-900, PR, Brazil; (A.J.C.); (M.H.S.)
| | - Maria Helena Sarragiotto
- Department of Chemistry, State University of Maringá, Maringá 87020-900, PR, Brazil; (A.J.C.); (M.H.S.)
| | - Rosilda Mara Mussury
- Faculty of Biological and Environmental Sciences, Federal University of Grande Dourados—UFGD, Dourados 79825-070, MS, Brazil
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Omar F, Tareq AM, Alqahtani AM, Dhama K, Sayeed MA, Emran TB, Simal-Gandara J. Plant-Based Indole Alkaloids: A Comprehensive Overview from a Pharmacological Perspective. Molecules 2021; 26:molecules26082297. [PMID: 33921093 PMCID: PMC8071433 DOI: 10.3390/molecules26082297] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/09/2021] [Accepted: 04/12/2021] [Indexed: 12/12/2022] Open
Abstract
Plant-based indole alkaloids are very rich in pharmacological activities, and the indole nucleus is considered to contribute greatly to these activities. This review's fundamental objective is to summarize the pharmacological potential of indole alkaloids that have been derived from plants and provide a detailed evaluation of their established pharmacological activities, which may contribute to identifying new lead compounds. The study was performed by searching various scientific databases, including Springer, Elsevier, ACS Publications, Taylor and Francis, Thieme, Wiley Online Library, ProQuest, MDPI, and online scientific books. A total of 100 indole compounds were identified and reviewed. The most active compounds possessed a variety of pharmacological activities, including anticancer, antibacterial, antiviral, antimalarial, antifungal, anti-inflammatory, antidepressant, analgesic, hypotensive, anticholinesterase, antiplatelet, antidiarrheal, spasmolytic, antileishmanial, lipid-lowering, antimycobacterial, and antidiabetic activities. Although some compounds have potent activity, some only have mild-to-moderate activity. The pharmacokinetic profiles of some of the identified compounds, such as brucine, mitragynine, 7-hydroxymitragynine, vindoline, and harmane, were also reviewed. Most of these compounds showed promising pharmacological activity. An in-depth pharmacological evaluation of these compounds should be performed to determine whether any of these indoles may serve as new leads.
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Affiliation(s)
- Faisal Omar
- Department of Pharmacy, International Islamic University Chittagong, Chittagong 4318, Bangladesh; (F.O.); (A.M.T.)
| | - Abu Montakim Tareq
- Department of Pharmacy, International Islamic University Chittagong, Chittagong 4318, Bangladesh; (F.O.); (A.M.T.)
| | - Ali M. Alqahtani
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia;
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, Uttar Pradesh, India;
| | - Mohammed Abu Sayeed
- Department of Pharmacy, International Islamic University Chittagong, Chittagong 4318, Bangladesh; (F.O.); (A.M.T.)
- Correspondence: (M.A.S.); (T.B.E.); (J.S.-G.); Tel.: +88-0-167-041-9435 (M.A.S.); +88-0-181-994-2214 (T.B.E.); +34-988-387000 (J.S.-G.)
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh
- Correspondence: (M.A.S.); (T.B.E.); (J.S.-G.); Tel.: +88-0-167-041-9435 (M.A.S.); +88-0-181-994-2214 (T.B.E.); +34-988-387000 (J.S.-G.)
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo—Ourense Campus, E32004 Ourense, Spain
- Correspondence: (M.A.S.); (T.B.E.); (J.S.-G.); Tel.: +88-0-167-041-9435 (M.A.S.); +88-0-181-994-2214 (T.B.E.); +34-988-387000 (J.S.-G.)
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Psychotria leiocarpa Extract and Vincosamide Reduce Chemically-Induced Inflammation in Mice and Inhibit the Acetylcholinesterase Activity. Inflammation 2020; 42:1561-1574. [PMID: 31102122 DOI: 10.1007/s10753-019-01018-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Species from Psychotria are used in folk medicine against inflammatory diseases, respiratory disturbances, and anti-hallucinogenic. In the present study, the compound vincosamide (PL-1) was identified for the first time in methanolic extract of the Psychotria leiocarpa (ME-PL) leaves, as well as the anti-inflammatory and anticholinesteric effects in rodents and molecular docking simulations. The fractionation of the chloroform fraction (CF-PL) through chromatographic methods afforded the known compound PL-1. The anti-inflammatory activity of the ME-PL (30, 100, and 300 mg/kg) and PL-1 (3, 30, and 100 mg/kg) was analyzed using experimental models: paw edema, pleurisy, and mechanical and thermal hyperalgesia induced by carrageenan. The anticholinesterase activity of the ME-PL (30 and 100 mg/kg) and PL-1 (30 mg/kg) was showed by acetylcholinesterase (AChE) inhibitory in brain structures. The molecular docking simulations were performed using Molegro Virtual Docker v6.0. Overall, the results indicated that ME-PL and PL-1 demonstrated an anti-edematogenic effect in Cg-induced paw edema, leukocyte migration in the pleurisy model, and significantly reduced mechanical hyperalgesia, cold response to acetone in mice. The samples exhibited maximal inhibition of enzyme acetylcholinesterase (AChE) in the frontal cortex. The molecular coupling of PL-1 with the AChE showed significant interactions with the catalytic and peripheral site, corroborating the activity presented in the inhibition assay. The acute administration of ME-PL did not cause signs of toxicity in the treated animals. The results showed that P. leiocarpa inhibited AChE and anti-inflammatory activity, and alkaloid vincosamide could be responsible, at least in part, for the observed effects, supporting the popular use of this genus.
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Formagio ASN, de Oliveira Junior PC, Volobuff CRF, Kassuya CAL, Ferreira DC, Cardoso CAL, Sarragiotto MH, Pereira ZV. Anti-inflammatory Activity of Methanolic Extract and an Alkaloid from Palicourea crocea (Sw.) Roem and Schult. Inflammation 2019; 42:1045-1055. [DOI: 10.1007/s10753-019-00966-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Volobuff CRF, Junior PCO, Dos Santos SM, Pereira ZV, Ferreira DC, Cardoso CAL, Ruiz ALTG, Foglio MA, de Carvalho JE, Formagio ASN. Antitumoral and Anticholinesterasic Activities of the Seven Species from Rubiaceae. Curr Pharm Biotechnol 2019; 20:302-308. [PMID: 30747062 DOI: 10.2174/1389201020666190211154550] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 01/30/2019] [Accepted: 02/05/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND The genus Psychotria and Palicourea are reported as a source of alkaloids and iridoids, which exhibit biological activities. This study aimed to evaluate antiproliferative and anticholinesterase activities and quantification of the alkaloids of seven species among the genus found in Mato Grosso do Sul region in Brazil. METHODS Concentrations of alkaloids were measured spectrophotometrically. The extracts were submitted to antiproliferative activity against ten cell lines. The anticholinesterase activity of the extracts was developed using brain structures of male Wistar rats: cerebral cortex, hippocampus, hypothalamus and striatum by the Ellman method. RESULTS Alkaloids from Psychotria and Palicourea species were quantified which showed values of 47.6 to 21.9 µg/g. Regarding the antiproliferative potential, Palicourea crocea demonstrated selectivity against the 786-0 cell line (GI50: 22.87 µg/mL). Psychotria leiocarpa inhibited cell growth against OVCAR-3 (GI50: 3.28 µg/mL), K-562 (GI50: 5.26 µg/mL), HaCaT (GI50: 27.20 µg/mL), PC-3 (GI50: 34.92 µg/mL), MCF-7 (GI50: 35.80 µg/mL) and P. capillacea showed activity against OVCAR-3 (GI50: 2.33 µg/ml) and U251 (GI50: 16.66 µg/ml). The effect of acetylcholinesterase inhibition was more effective in the hippocampus, demonstrating inhibition for Paliourea crocea, Psychotria deflexa, P. brachybotrya and P. leiocarpa of 70%, 57%, 50% and 40%, respectively, followed by P. poeppigiana and P. capillacea, inhibiting 21%, compared to the control. CONCLUSION Herein, the present work showed for the first time, anticholinesterasic and antiproliferative activities of extracts of Palicourea and Psychotria seem to be mainly associated with the levels of alkaloids in the leaves of these species.
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Affiliation(s)
- Carla R F Volobuff
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados-MS, Brazil
| | - Pedro C O Junior
- Faculty of Biological and Environmental Sciences, Federal University of Grande Dourados, Dourados-MS, Brazil
| | - Sidney M Dos Santos
- Faculty of Biological and Environmental Sciences, Federal University of Grande Dourados, Dourados-MS, Brazil
| | - Zefa V Pereira
- Faculty of Biological and Environmental Sciences, Federal University of Grande Dourados, Dourados-MS, Brazil
| | - Diego C Ferreira
- Department of Chemistry, State University of Mato Grosso do Sul, Dourados-MS, Brazil
| | - Claudia A L Cardoso
- Department of Chemistry, State University of Mato Grosso do Sul, Dourados-MS, Brazil
| | - Ana L T G Ruiz
- Faculty of Pharmaceutical Science, University of Campinas Unicamp, SP, Sao Paulo, Brazil
| | - Mary A Foglio
- Faculty of Pharmaceutical Science, University of Campinas Unicamp, SP, Sao Paulo, Brazil
| | - João E de Carvalho
- Faculty of Pharmaceutical Science, University of Campinas Unicamp, SP, Sao Paulo, Brazil
| | - Anelise S N Formagio
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados-MS, Brazil.,Faculty of Biological and Environmental Sciences, Federal University of Grande Dourados, Dourados-MS, Brazil
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Giovannini P, Howes MJR. Medicinal plants used to treat snakebite in Central America: Review and assessment of scientific evidence. JOURNAL OF ETHNOPHARMACOLOGY 2017; 199:240-256. [PMID: 28179114 DOI: 10.1016/j.jep.2017.02.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 02/02/2017] [Accepted: 02/03/2017] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Every year between 1.2 and 5.5 million people worldwide are victims of snakebites, with about 400,000 left permanently injured. In Central America an estimated 5500 snakebite cases are reported by health centres, but this is likely to be an underestimate due to unreported cases in rural regions. The aim of this study is to review the medicinal plants used traditionally to treat snakebites in seven Central American countries: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua and Panama. MATERIALS AND METHODS A literature search was performed on published primary data on medicinal plants of Central America and those specifically pertaining to use against snakebites. Plant use reports for traditional snakebite remedies identified in primary sources were extracted and entered in a database, with data analysed in terms of the most frequent numbers of use reports. The scientific evidence that might support the local uses of the most frequently reported species was also examined. RESULTS A total of 260 independent plant use reports were recorded in the 34 sources included in this review, encompassing 208 species used to treat snakebite in Central America. Only nine species were reported in at least three studies: Cissampelos pareira L., Piper amalago L., Aristolochia trilobata L., Sansevieria hyacinthoides (L.) Druce, Strychnos panamensis Seem., Dorstenia contrajerva L., Scoparia dulcis L., Hamelia patens Jacq., and Simaba cedron Planch. Genera with the highest number of species used to treat snakebite were Piper, Aristolochia, Hamelia, Ipomoea, Passiflora and Peperomia. The extent of the scientific evidence available to understand any pharmacological basis for their use against snakebites varied between different plant species. CONCLUSION At least 208 plant species are traditionally used to treat snakebite in Central America but there is a lack of clinical research to evaluate their efficacy and safety. Available pharmacological data suggest different plant species may target different symptoms of snakebites, such as pain or anxiety, although more studies are needed to further evaluate the scientific basis for their use.
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Affiliation(s)
- Peter Giovannini
- Natural Capital and Plant Health Department, Royal Botanic Gardens Kew, Wakehurst Place, Ardingly, West Sussex RH17 6TN, UK.
| | - Melanie-Jayne R Howes
- Natural Capital and Plant Health Department, Jodrell Laboratory, Royal Botanic Gardens Kew, Richmond, Surrey TW9 3AB, UK; Institute of Pharmaceutical Science, Faculty of Life Sciences & Medicine, Franklin-Wilkins Building, King's College London, 150 Stamford Street, London SE1 9NH, UK
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Kerber VA, Passos CS, Klein-Júnior LC, Quirion JC, Pannecoucke X, Salliot-Maire I, Henriques AT. Three new monoterpene indole alkaloids from Psychotria umbellata Thonn. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.06.090] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Passos CS, Simões-Pires CA, Nurisso A, Soldi TC, Kato L, de Oliveira CMA, de Faria EO, Marcourt L, Gottfried C, Carrupt PA, Henriques AT. Indole alkaloids of Psychotria as multifunctional cholinesterases and monoamine oxidases inhibitors. PHYTOCHEMISTRY 2013; 86:8-20. [PMID: 23261030 DOI: 10.1016/j.phytochem.2012.11.015] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Revised: 10/29/2012] [Accepted: 11/21/2012] [Indexed: 06/01/2023]
Abstract
Thirteen Psychotria alkaloids were evaluated regarding their interactions with acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and monoamine oxidases A and B (MAO-A and MAO-B), which are enzymatic targets related with neurodegenerative diseases. Two quaternary β-carboline alkaloids, prunifoleine and 14-oxoprunifoleine, inhibited AChE, BChE and MAO-A with IC(50) values corresponding to 10 and 3.39 μM for AChE, 100 and 11 μM for BChE, and 7.41 and 6.92 μM for MAO-A, respectively. Both compounds seem to behave as noncompetitive AChE inhibitors and time-dependent MAO-A inhibitors. In addition, the monoterpene indole alkaloids (MIAs) angustine, vallesiachotamine lactone, E-vallesiachotamine and Z-vallesiachotamine inhibited BChE and MAO-A with IC(50) values ranging from 3.47 to 14 μM for BChE inhibition and from 0.85 to 2.14 μM for MAO-A inhibition. Among the tested MIAs, angustine is able to inhibit MAO-A in a reversible and competitive way while the three vallesiachotamine-like alkaloids display a time-dependent inhibition on this target. Docking calculations were performed in order to understand the binding mode between the most active ligands and the selected targets. Taken together, our findings established molecular details of AChE, BChE and MAO-A inhibition by quaternary β-carboline alkaloids and MIAs from Psychotria, suggesting these secondary metabolites are scaffolds for the development of multifunctional compounds against neurodegeneration.
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Affiliation(s)
- Carolina S Passos
- Departamento de Produção de Matéria-Prima, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, UFRGS, Porto Alegre, RS, Brazil.
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Farias F, Passos C, Arbo M, Barros D, Gottfried C, Steffen V, Henriques A. Strictosidinic acid, isolated from Psychotria myriantha Mull. Arg. (Rubiaceae), decreases serotonin levels in rat hippocampus. Fitoterapia 2012; 83:1138-43. [DOI: 10.1016/j.fitote.2012.04.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 04/11/2012] [Accepted: 04/15/2012] [Indexed: 11/26/2022]
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Dos Santos Passos C, Soldi TC, Torres Abib R, Anders Apel M, Simões-Pires C, Marcourt L, Gottfried C, Henriques AT. Monoamine oxidase inhibition by monoterpene indole alkaloids and fractions obtained from Psychotria suterella and Psychotria laciniata. J Enzyme Inhib Med Chem 2012; 28:611-8. [PMID: 22424181 DOI: 10.3109/14756366.2012.666536] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Alkaloid fractions of Psychotria suterella (SAE) and Psychotria laciniata (LAE) as well as two monoterpene indole alkaloids (MIAs) isolated from these fractions were evaluated against monoamine oxidases (MAO-A and -B) obtained from rat brain mitochondria. SAE and LAE were analysed by HPLC-PDA and UHPLC/HR-TOF-MS leading to the identification of the compounds 1, 2, 3 and 4, whose identity was confirmed by NMR analyses. Furthermore, SAE and LAE were submitted to the enzymatic assays, showing a strong activity against MAO-A, characterized by IC(50) values of 1.37 ± 1.05 and 2.02 ± 1.08 μg/mL, respectively. Both extracts were also able to inhibit MAO-B, but in higher concentrations. In a next step, SAE and LAE were fractionated by RP-MPLC affording three and four major fractions, respectively. The RP-MPLC fractions were subsequently tested against MAO-A and -B. The RP-MPLC fractions SAE-F3 and LAE-F4 displayed a strong inhibition against MAO-A with IC(50) values of 0.57 ± 1.12 and 1.05 ± 1.15 μg/mL, respectively. The MIAs 1 and 2 also inhibited MAO-A (IC(50) of 50.04 ± 1.09 and 132.5 ± 1.33 μg/mL, respectively) and -B (IC(50) of 306.6 ± 1.40 and 162.8 ± 1.26 μg/mL, respectively), but in higher concentrations when compared with the fractions. This is the first work describing the effects of MIAs found in neotropical species of Psychotria on MAO activity. The results suggest that species belonging to this genus could consist of an interesting source in the search for new MAO inhibitors.
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Affiliation(s)
- Carolina Dos Santos Passos
- Laboratório Farmacognosia, Departamento de Produção de Matéria Prima, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
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Howes MJR, Perry E. The Role of Phytochemicals in the Treatment and Prevention of Dementia. Drugs Aging 2011; 28:439-68. [DOI: 10.2165/11591310-000000000-00000] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Farias FM, Passos CS, Arbo MD, Zuanazzi JAS, Steffen VM, Henriques AT. Monoamine levels in rat striatum after acute intraperitoneal injection of strictosidinic acid isolated from Psychotria myriantha Mull. Arg. (Rubiaceae). PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2010; 17:289-291. [PMID: 19576739 DOI: 10.1016/j.phymed.2009.05.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2009] [Revised: 04/16/2009] [Accepted: 05/14/2009] [Indexed: 05/28/2023]
Abstract
Strictosidinic acid 10mg/kg, isolated from Psychotria myriantha leaves, were administered intraperitoneally to Wistar male rats (n=5-6). After 60 minutes, striatum was dissected, homogenized and injected onto HPLC-ED chromatographic system. It was observed a 28.7% reduction in the 5-HT levels followed up by an increase of 5-HIAA levels (29.4%). Furthermore there was a decrease of 8.0% in DA levels and an increase in the levels of metabolites DOPAC (21.5%) and HVA (52.5%). The results indicate that strictosidinic acid has a promising effect in the central nervous system, justifying more studies about the central actions of Psychotria compounds.
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Affiliation(s)
- F M Farias
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul. Av. Ipiranga, 2752, CEP 90610-000 Porto Alegre, RS, Brazil
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Porto DD, Henriques AT, Fett-Neto AG. Bioactive Alkaloids from South American Psychotria and Related Species. ACTA ACUST UNITED AC 2009. [DOI: 10.2174/1874847300902010029] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Many important molecules have been discovered from tropical and sub-tropical plant biodiversity. However, the largest part of the chemical profile of such biodiversity remains unknown. Combining ethnopharmacological and chemotaxonomical investigation can be a good strategy in bioactive compound discovery. South American Psychotria species studied by this approach proved to be a rich source of new bioactive alkaloids, some of which bear unique chemical skeletons.
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Awad R, Ahmed F, Bourbonnais-Spear N, Mullally M, Ta CA, Tang A, Merali Z, Maquin P, Caal F, Cal V, Poveda L, Vindas PS, Trudeau VL, Arnason JT. Ethnopharmacology of Q'eqchi' Maya antiepileptic and anxiolytic plants: effects on the GABAergic system. JOURNAL OF ETHNOPHARMACOLOGY 2009; 125:257-64. [PMID: 19591913 DOI: 10.1016/j.jep.2009.06.034] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2009] [Revised: 06/26/2009] [Accepted: 06/29/2009] [Indexed: 05/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Q'eqchi' Maya possess a large selection of plants to treat neurological disorders, including epilepsy and susto (fright), a culture-bound illness related to anxiety disorders. AIM OF THE STUDY To investigate the activity of antiepileptic and anxiolytic plants in the GABAergic system, and determine if there is a pharmacological basis for plant selection. MATERIALS AND METHODS Ethanol extracts of 34 plants were tested in vitro for their ability to inhibit GABA-transaminase (GABA-T) or bind to the GABA(A)-benzodiazepine (BZD) receptor, two principal drug targets in epilepsy and anxiety. Pharmacological activity was correlated with relative frequency of use, based on informant consensus. RESULTS Ten plants showed greater than 50% GABA-T inhibition at 1mg/ml, while 23 showed greater than 50% binding to the GABA(A)-BZD receptor at 250 microg/ml. Piperaceae, Adiantaceae and Acanthaceae families were highly represented and active in both assays. There was a significant positive correlation between GABA-T inhibition and relative frequency of use for epilepsy, and an even stronger correlation between GABA(A) binding and relative frequency of use for susto (fright). CONCLUSIONS Clearly, Q'eqchi' traditional knowledge of antiepileptic and anxiolytic plants is associated with the use of pharmacologically active plants. Based on the evidence, it is suggested that the mechanism of action for some traditionally used plants may be mediated through the GABAergic system.
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Affiliation(s)
- Rosalie Awad
- Biology Department, University of Ottawa, Ontario, Canada
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Treit D, Engin E, McEown K. Animal models of anxiety and anxiolytic drug action. Curr Top Behav Neurosci 2009; 2:121-60. [PMID: 21309109 DOI: 10.1007/7854_2009_17] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Animal models of anxiety attempt to represent some aspect of the etiology, symptomatology, or treatment of human anxiety disorders, in order to facilitate their scientific study. Within this context, animal models of anxiolytic drug action can be viewed as treatment models relevant to the pharmacological control of human anxiety. A major purpose of these models is to identify novel anxiolytic compounds and to study the mechanisms whereby these compounds produce their anxiolytic effects. After a critical analysis of "face," "construct," and "predictive" validity, the biological context in which animal models of anxiety are to be evaluated is specified. We then review the models in terms of their general pharmacological profiles, with particular attention to their sensitivity to 5-HTIA agonists and antidepressant compounds. Although there are important exceptions, most of these models are sensitive to one or perhaps two classes of anxiolytic compounds, limiting their pharmacological generality somewhat, but allowing in depth analysis of individual mechanisms of anxiolytic drug action (e.g., GABAA agonism). We end with a discussion of possible sources of variability between models in response to 5-HTIA agonists and antidepressant drugs.
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Affiliation(s)
- Dallas Treit
- Department of Psychology, Division of Neuroscience, University of Alberta, P-449 Biological Sciences Building, Edmonton, AB, Canada T6G 2E9.
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Kerber VA, Passos CS, Verli H, Fett-Neto AG, Quirion JP, Henriques AT. Psychollatine, a glucosidic monoterpene indole alkaloid from Psychotria umbellata. JOURNAL OF NATURAL PRODUCTS 2008; 71:697-700. [PMID: 18288808 DOI: 10.1021/np0703951] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A monoterpene indole alkaloid, psychollatine ( 1), was isolated from Psychotria umbellata leaves. Its structure was characterized by interpretation of spectroscopic data and by comparison of its NMR data with those of croceaine A ( 2) from Palicourea crocea. The configuration of psychollatine ( 1) was established by NOE difference and circular dichroism (CD) techniques, while its conformation was evaluated through molecular modeling studies and NMR coupling constants.
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Affiliation(s)
- V A Kerber
- Faculdade de Farmácia, Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga, 2752, Porto Alegre, 90610-000, Brazil
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Rodrigues E, Tabach R, GaldurÓz JCF, Negri G. Plants With Possible Anxiolytic and/or Hypnotic Effects Indicated by Three Brazilian Cultures - Indians, Afro-Brazilians, and River-Dwellers. BIOACTIVE NATURAL PRODUCTS (PART O) 2008. [DOI: 10.1016/s1572-5995(08)80014-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Fragoso V, do Nascimento NC, Moura DJ, e Silva ACR, Richter MF, Saffi J, Fett-Neto AG. Antioxidant and antimutagenic properties of the monoterpene indole alkaloid psychollatine and the crude foliar extract of Psychotria umbellata Vell. Toxicol In Vitro 2007; 22:559-66. [PMID: 18093795 DOI: 10.1016/j.tiv.2007.11.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2007] [Accepted: 11/09/2007] [Indexed: 10/22/2022]
Abstract
Psychollatine is a monoterpene indole alkaloid produced and accumulated by Psychotria umbellata Vell. (Rubiaceae) leaves in relatively high amounts (approximately 3% of the dry weight). The alkaloid has been shown to display opioid-like analgesic, anxiolytic, antidepressive and antipsychotic activities in rodents. In vitro assays suggested a protective role for this molecule in plant oxidative stress responses. This work reports antioxidant properties of psychollatine and the crude foliar extract from P. umbellata in strains of Saccharomyces cerevisiae proficient and deficient in antioxidant defenses exposed to H2O2 and paraquat. The antimutagenic activity of P. umbellata and its main alkaloid were assayed in S. cerevisiae N123 strain in presence of H2O2. Moreover, the antioxidant capacity of these substances on the hydroxyl radical (OH.) was investigated, using the hypoxanthine/xanthine oxidase assay. Psychollatine and the crude foliar extract of P. umbellata showed protective effect against oxidative stress in yeast, acting both as antioxidant and antimutagenic agents.
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Affiliation(s)
- Variluska Fragoso
- Departamento de Botânica/Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
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Pasquali G, Porto DD, Fett-Neto AG. Metabolic engineering of cell cultures versus whole plant complexity in production of bioactive monoterpene indole alkaloids: Recent progress related to old dilemma. J Biosci Bioeng 2006; 101:287-96. [PMID: 16716935 DOI: 10.1263/jbb.101.287] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2005] [Accepted: 11/12/2005] [Indexed: 11/17/2022]
Abstract
Monoterpene indole alkaloids (MIAs) are a large class of plant alkaloids with significant pharmacological interest. The sustained production of MIAs at high yields is an important goal in biotechnology. Intensive effort has been expended toward the isolation, cloning, characterization and transgenic modulation of genes involved in MIA biosynthesis and in the control of the expression of these biosynthesis-related genes. At the same time, considerable progress has been made in the detailed description of the subcellular-, cellular-, tissue- and organ-specific expressions of portions of the biosynthetic pathways leading to the production of MIAs, revealing a complex picture of the transport of biosynthetic intermediates among membrane compartments, cells and tissues. The identification of the particular environmental and ontogenetic requirements for maximum alkaloid yield in MIA-producing plants has been useful in improving the supply of bioactive molecules. The search for new bioactive MIAs, particularly in tropical and subtropical regions, is continuously increasing the arsenal for therapeutic, industrially and agriculturally useful molecules. In this review we focus on recent progress in the production of MIAs in transgenic cell cultures and organs (with emphasis on Catharanthus roseus and Rauvolfia serpentina alkaloids), advances in the understanding of in planta spatial-temporal expression of MIA metabolic pathways, and on the identification of factors capable of modulating bioactive alkaloid accumulation in nontransgenic differentiated cultures and plants (with emphasis on new MIAs from Psychotria species). The combined use of metabolic engineering and physiological modulation in transgenic and wild-type plants, although not fully exploited to date, is likely to provide the sustainable and rational supply of bioactive MIAs needed for human well being.
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Affiliation(s)
- Giancarlo Pasquali
- Programa de Pós-graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Pr. 43.431, P.O. Box 15.005, CEP 91.501-970, Porto Alegre, RS, Brazil
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