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Khadem S, Marles RJ. Biological activity of natural 2-quinolinones. Nat Prod Res 2024:1-15. [PMID: 38824680 DOI: 10.1080/14786419.2024.2359545] [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: 03/20/2024] [Accepted: 05/18/2024] [Indexed: 06/04/2024]
Abstract
While natural products have undeniably played a crucial role in drug discovery, challenges such as limited availability and complex synthesis methods have hindered the identification of lead compounds. At the core of numerous natural and synthetic compounds, each displaying distinct biological behaviours, lies the foundational structure of 2-quinolinone. Compounds with this structural motif exhibit a broad range of effects in different tissues. Furthermore, specific members showcase therapeutic potential for various disorders. Despite the significance of these compounds, the current review literature has not provided a comprehensive overview, underscoring the essential contribution of this article in exploring their biological functions. This study examines the biological activity of selected 2-quinolinone alkaloids across diverse organisms, unveiling their potential as a source of innovative bioactive natural products.
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Affiliation(s)
- Shahriar Khadem
- Safe Environments Directorate, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, ON, Canada
| | - Robin J Marles
- Retired Senior Scientific Advisor, Health Canada, Ottawa, Canada
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Widyawaruyanti A, Tanjung M, Permanasari AA, Saputri R, Tumewu L, Adianti M, Aoki-Utsubo C, Hotta H, Hafid AF, Wahyuni TS. Alkaloid and benzopyran compounds of Melicope latifolia fruit exhibit anti-hepatitis C virus activities. BMC Complement Med Ther 2021; 21:27. [PMID: 33435968 PMCID: PMC7802229 DOI: 10.1186/s12906-021-03202-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 01/04/2021] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND New agents for developing alternative or complementary medicine to treat the hepatitis C virus (HCV) are still needed due to high rates of HCV infection globally and the current limitations of available treatments. Treatment of HCV with a combination of direct acting antivirals have been shown to be approximately 90% effective but will be limited in the future due to the emergence of drug resistance and high cost. The leaves of Melicope latifolia have previously been reported to have anti-HCV activity and are a potential source of bioactive compounds for future novel drug development. This study aimed to evaluate the efficacy of the extract of M. latifolia fruit to treat HCV and to isolate its active compounds. METHOD M. latifolia fruit was extracted using methanol and purified using vacuum liquid chromatography (VLC) and Radial Chromatography. The anti-HCV activity was analyzed using cell culture lines Huh7it-1 and JFH1 (genotype 2a). Time-of-addition and immunoblotting studies were performed to identify the mode of action of the isolated active compounds. The structures of the active compounds were determined using nuclear magnetic resonance (NMR) spectra, UV, IR, and Mass Spectra. RESULTS Six known compounds were isolated from M. latifolia fruit: O-methyloktadrenolon, alloevodionol, isopimpinellin, alloxanthoxyletin, methylevodionol, and N-methylflindersine. N-methylflidersine was the most active compound with IC50 value of 3.8 μg/ml while methylevodionol, isopimpinellin, and alloevodionol were less active. O-methyloktadrenolon and alloxanthoxyletin were moderately active with IC50 values of 10.9 and 21.72 μg/ml, respectively. N-methylflidersine decreased level of HCV NS3 protein expression in the cells. CONCLUSION The alkaloid compound, N-methylflindersine which was isolated from M. latifolia possesses anti-HCV activity through post-entry inhibition and suppressed NS3 protein expression.
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Affiliation(s)
- Aty Widyawaruyanti
- Department of Pharmacognosy and Phytochemistry, Faculty of Pharmacy, Universitas Airlangga, Jl. Mulyorejo, Surabaya, 60115, Indonesia
- Institute of Tropical Disease, Universitas Airlangga, Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - Mulyadi Tanjung
- Institute of Tropical Disease, Universitas Airlangga, Jl. Mulyorejo, Surabaya, 60115, Indonesia
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - Adita Ayu Permanasari
- Institute of Tropical Disease, Universitas Airlangga, Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - Ratih Saputri
- Institute of Tropical Disease, Universitas Airlangga, Jl. Mulyorejo, Surabaya, 60115, Indonesia
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - Lidya Tumewu
- Institute of Tropical Disease, Universitas Airlangga, Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - Myrna Adianti
- Institute of Tropical Disease, Universitas Airlangga, Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - Chie Aoki-Utsubo
- Department of Public Health, Kobe University Graduate School of Health Sciences, 7-10-2, Tomogaoka, Suma-ku, Kobe, 654-0142, Japan
| | - Hak Hotta
- Faculty of Clinical Nutrition and Dietetics, Konan Women's University, 6-2-23 Morikita-machi, Higashinada-ku, Kobe, 658-0001, Japan
| | - Achmad Fuad Hafid
- Department of Pharmacognosy and Phytochemistry, Faculty of Pharmacy, Universitas Airlangga, Jl. Mulyorejo, Surabaya, 60115, Indonesia
- Institute of Tropical Disease, Universitas Airlangga, Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - Tutik Sri Wahyuni
- Department of Pharmacognosy and Phytochemistry, Faculty of Pharmacy, Universitas Airlangga, Jl. Mulyorejo, Surabaya, 60115, Indonesia.
- Institute of Tropical Disease, Universitas Airlangga, Jl. Mulyorejo, Surabaya, 60115, Indonesia.
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Abstract
A new flavonoid derivative, namely 5,7-dihydroxy-3,6-dimethoxy-3′,4′-methylenedioxyflavone (1), was isolated from the leaves of Melicope glabra (Blume) T.G. Hartley. The structure of 1 was elucidated based on their UV, IR, HRESIMS, and 1D and 2D NMR spectral data.
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5,9,11-Trihydroxy-10-(2″-hydroxy-3″-methylbut-3″-en-1-yl)-2,2-dimethyl-3-(2′-methylbut-3′-en-2′-yl)-2H,12H-pyrano[2,3-a]xanthen-12-one from Calophyllum pseudomole. MOLBANK 2017. [DOI: 10.3390/m961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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