1
|
Olaranont Y, Mas-Claret E, Cheek M, Prescott TA, Onana JM, Langat MK. Cytotoxic ent-abietane diterpenoids, banyangmbolides A-E, from the leaves of Suregada occidentalis. Heliyon 2024; 10:e25917. [PMID: 38371959 PMCID: PMC10873725 DOI: 10.1016/j.heliyon.2024.e25917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/20/2024] Open
Abstract
The chemical investigation of a leaf extract from a herbarium specimen of Suregada occidentalis collected in Banyang Mbo Wildlife Sanctuary, Southwest Region, Cameroon, yielded five undescribed ent-abietane diterpenoids, banyangmbolides A-E, (1-5), and four known diterpenoids, gelomulides A (6), B (7), D (8) and O (9). The structures of the isolated compounds were determined using NMR, IR, ECD and HRESIMS. Compounds 5, 7 and 8, showed 48-55% inhibition at 200 μM against FM-55-M1 human melanoma cells.
Collapse
Affiliation(s)
- Yanisa Olaranont
- Royal Botanic Gardens Kew, Richmond, TW9 3AE, Surrey, UK
- Department of Plant Science, Faculty of Science, Mahidol University, Rama VI Road, Bangkok, 10400, Thailand
| | | | - Martin Cheek
- Royal Botanic Gardens Kew, Richmond, TW9 3AE, Surrey, UK
| | | | - Jean Michel Onana
- Department of Plant Biology, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
- IRAD-National Herbarium of Cameroon, Yaoundé, PO Box 1601, Cameroon
| | | |
Collapse
|
2
|
Obegi Matundura J, Midiwo JO, Yenesew A, Omosa LK, Kumarihamy M, Zhao J, Wang M, Tripathi S, Khan S, Masila VM, Nchiozem-Ngnitedem VA, Muhammad I. Antiplasmodial and antimicrobial activities of e nt-abietane diterpenoids from the roots of Suregada zanzibariensis. Nat Prod Res 2023; 37:4008-4012. [PMID: 36576067 DOI: 10.1080/14786419.2022.2158463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/05/2022] [Accepted: 12/09/2022] [Indexed: 12/29/2022]
Abstract
The root extract of Suregada zanzibariensis Baill. afforded six previously described ent-abietane diterpenoids, namely 7-oxo-ent-abieta-5(6),8(14),13(15)-trien-16,12-olide (1), mangiolide (2), 8,14β:11,12α-diepoxy-13(15)-abietane-16,12-olide (3), 7β,11β,12β-trihydroxy-ent-abieta-8(14),13(15)-diene-16,12-olide (4), 8α,14-dihydro-7-oxo-jolkinolide E (5), jolkinolide A (6), together with 3β-sitosterol (7), scopoletin (8) and vanillin (9). Their structures were deduced through 1D and 2D NMR spectroscopic techniques, and HRESIMS, as well as by comparison of the NMR data with those reported in the literature. The crude extract and compounds 1-9 were evaluated for their antiplasmodial, antifungal and antibacterial activities. Mangiolide (2) showed strong in vitro antiplasmodial activity against chloroquine sensitive (D6) and resistant (W2) strains of Plasmodium falciparum with IC50 values of 0.79 and 0.87 µg/mL, respectively, while 3 (IC50 1.24 and 1.17 µg/mL) was less active than 2. Compound 2 also displayed antimicrobial activity against Cryptococcus neoformans, methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus faecium (VRE) with IC50 values of 1.20, 3.90 and 7.20 µg/mL, respectively.
Collapse
Affiliation(s)
| | - Jacob O Midiwo
- Department of Chemistry, University of Nairobi, Nairobi, Kenya
| | - Abiy Yenesew
- Department of Chemistry, University of Nairobi, Nairobi, Kenya
| | | | - Mallika Kumarihamy
- National Centre for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, Mississippi, 38677, USA
| | - Jianping Zhao
- National Centre for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, Mississippi, 38677, USA
| | - Mei Wang
- National Centre for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, Mississippi, 38677, USA
- Natural Products Utilization Research Unit, Agricultural Research Service, United States, Department of Agriculture, University, Mississippi, 38677, USA
| | - Siddharth Tripathi
- National Centre for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, Mississippi, 38677, USA
| | - Shabana Khan
- National Centre for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, Mississippi, 38677, USA
| | | | | | - Ilias Muhammad
- National Centre for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, Mississippi, 38677, USA
| |
Collapse
|
3
|
Mangisa M, Kemboi D, Fouche G, Nthambeleni R, Langat MK, Tarirai C, Cheek M, Gonyela O, Tembu VJ. Ethnomedicinal Uses, Phytochemistry and Pharmacological Properties of Suregada Genus: A Review. Pharmaceuticals (Basel) 2023; 16:1390. [PMID: 37895862 PMCID: PMC10610488 DOI: 10.3390/ph16101390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 10/29/2023] Open
Abstract
Plants of the Suregada Roxb. ex Rottler (formerly Gelonium Roxb. ex Willd) are utilized to treat various ailments, namely, hepatic, gum diseases, pyrexia, eczema, and venereal diseases. This review links the reported compounds to ethnomedicinal uses through pharmacological activities. The compounds possess anticancer, anti-allergic, antibacterial, anti-inflammatory, antioxidant, and anti-HIV properties. From the previous reports, 32 known species of the Suregada genus have been investigated morphologically, and nine were investigated for their phytochemistry and pharmacology. Phytochemistry, ethnomedicinal, and pharmacological uses of the other 23 Suregada species are not known and/or not reported. In this review, abietane diterpenoids are the main compounds expressed by the Suregada, accounting for 71 of the 114 reported compounds. Ten triterpenoids and sterols, one aliphatic, two lignans, five flavonoids, and twenty-one nitrogen-containing compounds have been reported from the genus.
Collapse
Affiliation(s)
- Mandisa Mangisa
- Department of Chemistry, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa; (M.M.); (O.G.); (V.J.T.)
| | - Douglas Kemboi
- Department of Chemistry, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa; (M.M.); (O.G.); (V.J.T.)
- Department of Chemistry, University of Kabianga, Kericho 2030, Kenya
| | - Gerda Fouche
- Department of Chemistry, University of Pretoria, Private Bag X20, Pretoria 0001, South Africa;
| | - Rudzani Nthambeleni
- Biosciences, Council for Scientific and Industrial Research, Pretoria 0001, South Africa;
| | | | - Clemence Tarirai
- Department of Pharmaceutical Sciences, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa;
| | - Martin Cheek
- Science Department, Royal Botanic Gardens, Kew TW9 3DS, UK; (M.K.L.); (M.C.)
| | - Odwa Gonyela
- Department of Chemistry, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa; (M.M.); (O.G.); (V.J.T.)
| | - Vuyelwa Jacqueline Tembu
- Department of Chemistry, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa; (M.M.); (O.G.); (V.J.T.)
| |
Collapse
|