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Ngah L, Tsopgni WDT, Nyobe JCN, Tcho AT, Langat MK, Ndom JC, Mas-Claret E, Sadgrove NJ, Waffo AFK, Phumthum M. A New Antimicrobial Phenylpropanol from the Leaves of Tabernaemontana inconspicua Stapf. (Apocynaceae) Inhibits Pathogenic Gram-Negative Bacteria. Antibiotics (Basel) 2022; 11:antibiotics11010121. [PMID: 35052998 PMCID: PMC8773313 DOI: 10.3390/antibiotics11010121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/11/2022] [Accepted: 01/13/2022] [Indexed: 11/21/2022] Open
Abstract
A chemical investigation of the leaves of Tabernaemontana inconspicua Stapf. led to the isolation of a new phenylpropanol derivative, namely irisdichototin G (1), together with nine known compounds, including one polyol derivative, dambonitol (2); three alkaloids, 10-hydroxycoronaridine (3), voacristine (4) and vobasine (5); two triterpenes lupeol (6), betulinic acid (7) and three sterols, sitosterol (8), sitosterol-3-O-β-D-glucopyranoside (9) and stigmasterol (10). The structure of the new compound, as well as those of the known ones, was established by means of spectroscopic methods: NMR analysis (1H and 13C NMR, 1H-1H-COSY, HSQC, HMBC and NOESY), high-resolution mass spectrometry (HR-ESI-MS) and comparisons with previously reported data. Among the known compounds, compound 2 was firstly reported from the family Apocynaceae. Compounds 1–5 were tested for their antimicrobial effects against three Gram-negative organisms associated with human wound and systemic infections, namely Haemophilus influenzae 9435337A, Klebsiella pneumoniae 17102005 and Pseudomonas aeruginosa 2137659B. Compounds 1, 3, and 5 showed significant antimicrobial effects with minimum inhibitory concentrations (MIC) of 62.5 μg/mL, 62.5 μg/mL and 7.81 μg/mL, respectively, against Haemophilus influenzae, whereas compounds 1 and 5 showed significant antimicrobial effects, with a MIC value of 31.25 μg/mL against Pseudomonas aeruginosa. In addition, compound 3 showed significant antimicrobial activity, with a MIC value of 31.25 μg/mL against Klebsiella pneumoniae.
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Affiliation(s)
- Lidwine Ngah
- Faculty of Sciences, Department of Chemistry, University of Douala, Douala P.O. Box 24157, Cameroon; (L.N.); (W.D.T.T.); (J.C.N.); (A.F.K.W.)
| | - Willifred Dongmo Tékapi Tsopgni
- Faculty of Sciences, Department of Chemistry, University of Douala, Douala P.O. Box 24157, Cameroon; (L.N.); (W.D.T.T.); (J.C.N.); (A.F.K.W.)
| | - Judith Caroline Ngo Nyobe
- Laboratory of Quality Control for Food, Pharmaceutical and Cosmetic Products, Department of Thermal Engineering and Energy, University Institute of Technology, University of Douala, Douala P.O. Box 8698, Cameroon;
| | - Alain Tadjong Tcho
- Department of Chemistry, Faculty of Sciences, University of Buea, Buea P.O. Box 63, Cameroon;
| | - Moses K. Langat
- Royal Botanic Gardens, Kew, Kew Green, Richmond, Surrey TW9 3AE, UK; (M.K.L.); (E.M.-C.); (N.J.S.)
| | - Jean Claude Ndom
- Faculty of Sciences, Department of Chemistry, University of Douala, Douala P.O. Box 24157, Cameroon; (L.N.); (W.D.T.T.); (J.C.N.); (A.F.K.W.)
| | - Eduard Mas-Claret
- Royal Botanic Gardens, Kew, Kew Green, Richmond, Surrey TW9 3AE, UK; (M.K.L.); (E.M.-C.); (N.J.S.)
| | - Nicholas John Sadgrove
- Royal Botanic Gardens, Kew, Kew Green, Richmond, Surrey TW9 3AE, UK; (M.K.L.); (E.M.-C.); (N.J.S.)
| | - Alain François Kamdem Waffo
- Faculty of Sciences, Department of Chemistry, University of Douala, Douala P.O. Box 24157, Cameroon; (L.N.); (W.D.T.T.); (J.C.N.); (A.F.K.W.)
| | - Methee Phumthum
- Royal Botanic Gardens, Kew, Kew Green, Richmond, Surrey TW9 3AE, UK; (M.K.L.); (E.M.-C.); (N.J.S.)
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
- Correspondence:
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Major Bioactive Alkaloids and Biological Activities of Tabernaemontana Species (Apocynaceae). PLANTS 2021; 10:plants10020313. [PMID: 33562893 PMCID: PMC7915066 DOI: 10.3390/plants10020313] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/24/2021] [Accepted: 01/29/2021] [Indexed: 01/28/2023]
Abstract
Several species belonging to the genus Tabernaemontana have been well researched and utilized for their wide-ranging biological activities. A few of the most prominent species include Tabernaemontana divaricata, Tabernaemontana catharinensis, Tabernaemontana crassa, and Tabernaemontana elegans. These species and many others within the genus often display pharmacological importance, which is habitually related to their chemical constituents. The secondary metabolites within the genus have demonstrated huge medicinal potential for the treatment of infections, pain, injuries, and various diseases. Regardless of the indispensable reports and properties displayed by Tabernaemontana spp., there remains a wide variety of plants that are yet to be considered or examined. Thus, an additional inclusive study on species within this genus is essential. The current review aimed to extensively analyze, collate, and describe an updated report of the current literature related to the major alkaloidal components and biological activities of species within the genus Tabernaemontana.
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Foudjo Melacheu Laura G, Mfotie Njoya E, Jouda JB, Wakeu Kweka BN, Djama Mbazoa C, Wang F, Seguin E, Wandji J. A new cytotoxic indole alkaloid from Tabernaemontana inconspicua stapf. Nat Prod Res 2019; 35:1590-1595. [PMID: 31305139 DOI: 10.1080/14786419.2019.1628749] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
One new indole alkaloid derivative, 5,6-dioxo-11-hydroxy voacangine (1) together with four known compounds (2-5), were isolated from the fruits of Tabernaemontana inconspicua Stapf (Apocynaceae). Their structures were determined using 1D and 2D NMR, HRESI-MS, and a comparison with the literature. The new compound was found to be cytotoxic on human breast cancer MDA-MB 231 cells with IC50 values of 3.35 µM and 2.19 µM after 24 and 48 hours, respectively.
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Affiliation(s)
| | - Emmanuel Mfotie Njoya
- Key Laboratory of Natural Medicine and Clinical Translation, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China.,Department of Biochemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Jean-Bosco Jouda
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | | | - Céline Djama Mbazoa
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Fei Wang
- Key Laboratory of Natural Medicine and Clinical Translation, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Elisabeth Seguin
- Laboratoire de Pharmacogniosie, Faculté de Medicine et de Pharmacie, Université de Rouen, Rouen cedex 1, France
| | - Jean Wandji
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
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Abdelhameed RM, Darwesh OM, Rocha J, Silva AMS. IRMOF-3 Biological Activity Enhancement by Post-Synthetic Modification. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801442] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Reda M. Abdelhameed
- Applied Organic Chemistry Department; National Research Centre; 33 EL Bohouth st. Dokki, Giza Egypt
- Department of Chemistry; CICECO-Aveiro Institute of Materials; University of Aveiro; 3810-193 Aveiro Portugal
| | - Osama M. Darwesh
- Agricultural Microbiology Department; National Research Centre; 33 EL Bohouth st. Dokki, Giza Egypt
| | - João Rocha
- Department of Chemistry; CICECO-Aveiro Institute of Materials; University of Aveiro; 3810-193 Aveiro Portugal
| | - Artur M. S. Silva
- Department of Chemistry, QOPNA; University of Aveiro; 3810-193 Aveiro Portugal
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Camponogara C, Casoti R, Brusco I, Piana M, Boligon AA, Cabrini DA, Trevisan G, Ferreira J, Silva CR, Oliveira SM. Tabernaemontana catharinensis leaves effectively reduce the irritant contact dermatitis by glucocorticoid receptor-dependent pathway in mice. Biomed Pharmacother 2019; 109:646-657. [DOI: 10.1016/j.biopha.2018.10.132] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/09/2018] [Accepted: 10/21/2018] [Indexed: 12/26/2022] Open
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Phytochemical Analysis by HPLC-HRESI-MS and Anti-Inflammatory Activity of Tabernaemontana catharinensis. Int J Mol Sci 2018; 19:ijms19020636. [PMID: 29495249 PMCID: PMC5855858 DOI: 10.3390/ijms19020636] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 01/07/2018] [Accepted: 01/13/2018] [Indexed: 12/12/2022] Open
Abstract
Tabernaemontana catharinensis (Apocynaceae) has been popularly used by folk medicine because of its anti-inflammatory, analgesic, and antiophidic properties. This study aims to analyze the flavonoids composition of the hydroethanolic extract and of the ethyl acetate (EtOAc) and butanol (BuOH) fractions of T. catharinensis leaves, as well as to evaluate their anti-inflammatory activity using in vivo models. The phytochemical profile, determined by High-Performance Liquid Chromatography–High-Resolution Electrospray Ionization-Mass Spectrometry (HPLC–HRESI-MS), showed the presence of flavonoids mainly having an isorhamnetin nucleus. The anti-inflammatory activity was evaluated in carrageenan-induced paw edema (pre- and post-treatment) with oral administration of a T. catharinensis hydroethanolic extract (50, 100, and 150 mg/kg) and of organic fractions (50 mg/kg). The extract and fractions showed antiedematogenic activity by decreasing myeloperoxidase (MPO) production. In the zymosan-air-pouch model, the extract and fractions inhibited leukocyte migration and significantly decreased the levels of various proteins, such as MPO, interleukin (IL)-1β, and tumor necrosis factor (TNF)-α. The cytotoxicity was evaluated by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, which revealed no cytotoxicity of the extract and the fractions. These results suggest that the hydroethanolic extract and organic fractions of T. catharinensis leaves have sufficient anti-inflammatory activity to support the popular use of this plant in the treatment of inflammatory disorders.
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Marinho FF, Simões AO, Barcellos T, Moura S. Brazilian Tabernaemontana genus: Indole alkaloids and phytochemical activities. Fitoterapia 2016; 114:127-137. [PMID: 27639415 DOI: 10.1016/j.fitote.2016.09.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 09/07/2016] [Accepted: 09/13/2016] [Indexed: 11/19/2022]
Abstract
The Tabernaemontana genus belongs to the family Apocynaceae comprising about 100 species spread throughout tropical and subtropical regions around the world including Brazil, which contains around 40 species spread all over its territory. Because of the territorial space and climate diversity, these species already identified in Brazil are the largest collection of Tabernaemontana, which are representative (about 30%) of worldwide distribution. The monoterpene indole alkaloids present as major secondary components in all parts of the plants of the genus Tabernaemontana, have attracted the attention of the scientific community for new alkaloids derivatives and bioactivities. This review covers relevant references about Tabernaemontana species found in Brazil, its geographical distribution, occurrence of monoterpene alkaloids and phytochemical activities. Additional information about the South American species activities are also reported in this review.
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Affiliation(s)
- Flávio F Marinho
- Laboratory of Biotechnology of Natural and Synthetic Products, Institute of Biotechnology, University of Caxias do Sul, Caxias do Sul, Brazil
| | - André Olmos Simões
- Departamento de Biologia Vegetal, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Thiago Barcellos
- Laboratory of Biotechnology of Natural and Synthetic Products, Institute of Biotechnology, University of Caxias do Sul, Caxias do Sul, Brazil
| | - Sidnei Moura
- Laboratory of Biotechnology of Natural and Synthetic Products, Institute of Biotechnology, University of Caxias do Sul, Caxias do Sul, Brazil.
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Boligon AA, de Freitas RB, de Brum TF, Piana M, Belke BV, da Rocha JBT, Athayde ML. Phytochemical constituents and in vitro antioxidant capacity of Tabernaemontana catharinensis A. DC. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.fra.2013.05.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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