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Yang Y, Tao L, Li Y, Wu Y, Ran Q, Li D, Li SM, Yu X, Yuan CM, Zhou K. Fungal Prenyltransferase AnaPT and Its F265 Mutants Catalyze the Dimethylallylation at the Nonaromatic Carbon of Phloretin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:8018-8026. [PMID: 38557039 DOI: 10.1021/acs.jafc.4c00928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Phloretin is widely found in fruit and shows various biological activities. Here, we demonstrate the dimethylallylation, geranylation, and farnesylation, particularly the first dimethylallylation at the nonaromatic carbon of phloretin (1) by the fungal prenyltransferase AnaPT and its mutants. F265 was identified as a key amino acid residue related to dimethylallylation at the nonaromatic carbon of phloretin. Mutants AnaPT_F265D, AnaPT_F265G, AnaPT_F265P, AnaPT_F265C, and AnaPT_F265Y were discovered to generally increase prenylation activity toward 1. AnaPT_F265G catalyzes the O-geranylation selectively at the C-2' hydroxyl group, which involves an intramolecular hydrogen bond with the carbonyl group of 1. Seven products, 1D5, 1D7-1D9, 1G2, 1G4, and 1F2, have not been reported prior to this study. Twelve compounds, 1D3-1D9, 1G1-1G3, and 1F1-1F2, exhibited potential inhibitory effects on α-glucosidase with IC50 values ranging from 11.45 ± 0.87 to 193.80 ± 6.52 μg/mL. Among them, 1G1 with an IC50 value of 11.45 ± 0.87 μg/mL was the most potential α-glucosidase inhibitor, which is about 30 times stronger than the positive control acarbose with an IC50 value of 346.63 ± 15.65 μg/mL.
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Affiliation(s)
- Yanzhi Yang
- School of Pharmaceutical Sciences, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Linlan Tao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
| | - Yunyun Li
- School of Pharmaceutical Sciences, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Ying Wu
- School of Pharmaceutical Sciences, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Qianqian Ran
- School of Pharmaceutical Sciences, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Dan Li
- School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
| | - Shu-Ming Li
- Institut für Pharmazeutische Biologie und Biotechnologie, Fachbereich Pharmazie, Philipps-Universität Marburg, Robert-Koch-Str. 4, Marburg 35037, Germany
| | - Xia Yu
- School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
| | - Chun-Mao Yuan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
| | - Kang Zhou
- School of Pharmaceutical Sciences, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
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Tabakam GT, Kodama T, Tchuenmogne MAT, Hoang NN, Nomin-Erdene B, Ngouela SA, Tene M, Morita H, Awouafack MD. Cytotoxic potential of dihydrochalcones from Eriosema glomeratum and their semi-synthetic derivatives. Nat Prod Res 2024; 38:186-197. [PMID: 35968769 DOI: 10.1080/14786419.2022.2111563] [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: 04/15/2022] [Revised: 07/23/2022] [Accepted: 07/28/2022] [Indexed: 10/15/2022]
Abstract
In the search of cytotoxic dihydrochalcones, this investigation led to the isolation of seven compounds (1-7) from Eriosema glomeratum and the preparation of eight derivatives (8-15). The cytotoxicity of samples was evaluated against lung (A549), breast (MCF-7), and cervical (HeLa) human cancer cells. The CH2Cl2/MeOH extract of the aerial part had strong cytotoxicity against all cells [IC50 11.2 (MCF-7), 8.4 (HeLa) and 13.1 (A549) μg/mL]. A strong activity was also displayed by the n-hexane fraction on MCF-7 (IC50 11.2 μg/mL). The precursor 3 and the derivative 8 were specifically found as strong cytotoxic agents toward MCF-7 (7.6 μM) and HeLa (3.1 μM), respectively and were more effective than the positive control. Derivatives 8 (3.1 μM) and 9 (21.3 μM) against HeLa were most potent than their precursor 3 (23.7 μM). This is the first preparation of 8-14 as well as the cytotoxicity of 3, 4, 8-15, fractions, and extract.
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Affiliation(s)
- Gaétan Tchangou Tabakam
- Natural Products Chemistry Research Unit, Department of Chemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
| | - Takeshi Kodama
- Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | | | - Nhat Nam Hoang
- Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | | | - Silvère Augustin Ngouela
- Natural Products Chemistry Research Unit, Department of Chemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
| | - Mathieu Tene
- Natural Products Chemistry Research Unit, Department of Chemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
| | - Hiroyuki Morita
- Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Maurice Ducret Awouafack
- Natural Products Chemistry Research Unit, Department of Chemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
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Chepkirui C, Ali Adem F, Rudenko A, Gütlin Y, Ndakala A, Derese S, Orthaber A, Bourgard C, Yenesew A, Erdélyi M. Benzo[ b]naphtho[2,1- d]furans and 2-Phenylnaphthalenes from Streblus usambarensis. JOURNAL OF NATURAL PRODUCTS 2023; 86:1010-1018. [PMID: 37043719 PMCID: PMC10152483 DOI: 10.1021/acs.jnatprod.3c00051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Three new benzo[b]naphtho[2,1-d]furans, usambarins A-C (1-3), five new 2-phenylnaphthalenes, usambarins D-H (4-8), a new flavan (9), and a new phenyl-1-benzoxepin (10) as well as two known compounds (11 and 12) were isolated from the extract of the stem and roots of Streblus usambarensis (Moraceae). The structures were deduced using NMR spectroscopic and mass spectrometric analyses, and those of compounds 1 and 4 were confirmed by X-ray crystallography. Usambarin D (4) demonstrated moderate antibacterial activity (MIC 9.0 μM) against Bacillus subtilis, while none of the tested compounds were effective against Escherichia coli.
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Affiliation(s)
- Carolyne Chepkirui
- Department of Chemistry, University of Nairobi, P.O. Box 30197, 00100 Nairobi, Kenya
- Department of Physical and Biological Sciences, Kabarak University, Private Bag-20157, Nakuru, Kenya
| | - Fozia Ali Adem
- Department of Chemistry, University of Nairobi, P.O. Box 30197, 00100 Nairobi, Kenya
| | - Anastasia Rudenko
- Department of Chemistry and Molecular Biology, University of Gothenburg, and Centre for Antibiotic Resistance Research (CARe) at the University of Gothenburg, SE-405 30 Gothenburg, Sweden
| | - Yukino Gütlin
- Department of Chemistry and Molecular Biology, University of Gothenburg, and Centre for Antibiotic Resistance Research (CARe) at the University of Gothenburg, SE-405 30 Gothenburg, Sweden
| | - Albert Ndakala
- Department of Chemistry, University of Nairobi, P.O. Box 30197, 00100 Nairobi, Kenya
| | - Solomon Derese
- Department of Chemistry, University of Nairobi, P.O. Box 30197, 00100 Nairobi, Kenya
| | - Andreas Orthaber
- Department of Chemistry - Ångström, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Catarina Bourgard
- Department of Chemistry and Molecular Biology, University of Gothenburg, and Centre for Antibiotic Resistance Research (CARe) at the University of Gothenburg, SE-405 30 Gothenburg, Sweden
| | - Abiy Yenesew
- Department of Chemistry, University of Nairobi, P.O. Box 30197, 00100 Nairobi, Kenya
| | - Máté Erdélyi
- Department of Chemistry - BMC, Uppsala University, SE-752 37 Uppsala, Sweden
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Lv HW, Wang QL, Luo M, Zhu MD, Liang HM, Li WJ, Cai H, Zhou ZB, Wang H, Tong SQ, Li XN. Phytochemistry and pharmacology of natural prenylated flavonoids. Arch Pharm Res 2023; 46:207-272. [PMID: 37055613 PMCID: PMC10101826 DOI: 10.1007/s12272-023-01443-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 03/07/2023] [Indexed: 04/15/2023]
Abstract
Prenylated flavonoids are a special kind of flavonoid derivative possessing one or more prenyl groups in the parent nucleus of the flavonoid. The presence of the prenyl side chain enriched the structural diversity of flavonoids and increased their bioactivity and bioavailability. Prenylated flavonoids show a wide range of biological activities, such as anti-cancer, anti-inflammatory, neuroprotective, anti-diabetic, anti-obesity, cardioprotective effects, and anti-osteoclastogenic activities. In recent years, many compounds with significant activity have been discovered with the continuous excavation of the medicinal value of prenylated flavonoids, and have attracted the extensive attention of pharmacologists. This review summarizes recent progress on research into natural active prenylated flavonoids to promote new discoveries of their medicinal value.
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Affiliation(s)
- Hua-Wei Lv
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China
| | - Qiao-Liang Wang
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China
| | - Meng Luo
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China
| | - Meng-Di Zhu
- Research Center of Analysis and Measurement, Zhejiang University of Technology University, 310014, Hang Zhou, P. R. China
| | - Hui-Min Liang
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China
| | - Wen-Jing Li
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China
| | - Hai Cai
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China
| | - Zhong-Bo Zhou
- School of Pharmacy, Youjiang Medical University for Nationalities, 533000, Baise, P. R. China
| | - Hong Wang
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China
| | - Sheng-Qiang Tong
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China.
| | - Xing-Nuo Li
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China.
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Tomani JCD, Bonnet O, Nyirimigabo A, Deschamps W, Tchinda AT, Jansen O, Ledoux A, Mukazayire MJ, Vanhamme L, Frédérich M, Muganga R, Souopgui J. In Vitro Antiplasmodial and Cytotoxic Activities of Compounds from the Roots of Eriosema montanum Baker f. (Fabaceae). Molecules 2021; 26:molecules26092795. [PMID: 34068519 PMCID: PMC8125995 DOI: 10.3390/molecules26092795] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 04/29/2021] [Accepted: 05/04/2021] [Indexed: 11/16/2022] Open
Abstract
Malaria remains one of the leading causes of death in sub-Saharan Africa, ranked in the top three infectious diseases in the world. Plants of the Eriosema genus have been reported to be used for the treatment of this disease, but scientific evidence is still missing for some of them. In the present study, the in vitro antiplasmodial activity of the crude extract and compounds from Eriosema montanum Baker f. roots were tested against the 3D7 strain of Plasmodium falciparum and revealed using the SYBR Green, a DNA intercalating compound. The cytotoxicity effect of the compounds on a human cancer cell line (THP-1) was assessed to determine their selectivity index. It was found that the crude extract of the plant displayed a significant antiplasmodial activity with an IC50 (µg/mL) = 17.68 ± 4.030 and a cytotoxic activity with a CC50 (µg/mL) = 101.5 ± 12.6, corresponding to a selective antiplasmodial activity of 5.7. Bioactivity-guided isolation of the major compounds of the roots' crude extract afforded seven compounds, including genistein, genistin and eucomic acid. Under our experimental conditions, using Artemisinin as a positive control, eucomic acid showed the best inhibitory activity against the P. falciparum 3D7, a well-known chloroquine-sensitive strain. The present results provide a referential basis to support the traditional use of Eriosema species in the treatment of malaria.
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Affiliation(s)
- Jean Claude Didelot Tomani
- School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Kigali P.O. Box 3286, Rwanda; (J.C.D.T.); (A.N.); (M.J.M.); (R.M.)
- Department of Molecular Biology, Institute for Molecular Biology and Medicine, Université Libre de Bruxelles, 6041 Gosselies, Belgium; (W.D.); (L.V.)
| | - Olivier Bonnet
- Centre for Interdisciplinary Research on Medicines (CIRM), Laboratory of Pharmacognosy, University of Liège, B36, 4000 Liège, Belgium; (O.B.); (O.J.); (A.L.); (M.F.)
| | - Alain Nyirimigabo
- School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Kigali P.O. Box 3286, Rwanda; (J.C.D.T.); (A.N.); (M.J.M.); (R.M.)
- Centre for Interdisciplinary Research on Medicines (CIRM), Laboratory of Pharmacognosy, University of Liège, B36, 4000 Liège, Belgium; (O.B.); (O.J.); (A.L.); (M.F.)
| | - William Deschamps
- Department of Molecular Biology, Institute for Molecular Biology and Medicine, Université Libre de Bruxelles, 6041 Gosselies, Belgium; (W.D.); (L.V.)
| | - Alembert Tiabou Tchinda
- Laboratory of Phytochemistry, Centre for Research on Medicinal Plants and Traditional Medicine, Institute of Medical Research and Medicinal Plants Studies, Yaoundé P.O. Box 13033, Cameroon;
| | - Olivia Jansen
- Centre for Interdisciplinary Research on Medicines (CIRM), Laboratory of Pharmacognosy, University of Liège, B36, 4000 Liège, Belgium; (O.B.); (O.J.); (A.L.); (M.F.)
| | - Allison Ledoux
- Centre for Interdisciplinary Research on Medicines (CIRM), Laboratory of Pharmacognosy, University of Liège, B36, 4000 Liège, Belgium; (O.B.); (O.J.); (A.L.); (M.F.)
| | - Marie Jeanne Mukazayire
- School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Kigali P.O. Box 3286, Rwanda; (J.C.D.T.); (A.N.); (M.J.M.); (R.M.)
| | - Luc Vanhamme
- Department of Molecular Biology, Institute for Molecular Biology and Medicine, Université Libre de Bruxelles, 6041 Gosselies, Belgium; (W.D.); (L.V.)
| | - Michel Frédérich
- Centre for Interdisciplinary Research on Medicines (CIRM), Laboratory of Pharmacognosy, University of Liège, B36, 4000 Liège, Belgium; (O.B.); (O.J.); (A.L.); (M.F.)
| | - Raymond Muganga
- School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Kigali P.O. Box 3286, Rwanda; (J.C.D.T.); (A.N.); (M.J.M.); (R.M.)
| | - Jacob Souopgui
- Department of Molecular Biology, Institute for Molecular Biology and Medicine, Université Libre de Bruxelles, 6041 Gosselies, Belgium; (W.D.); (L.V.)
- Correspondence: ; Tel.: +32-2-650-9936
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