1
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Li C, Wang Q, Liu Y, Liao B, Zhang X, Chen L, Zhang J, Wang H, Zuo A. A new xanthone isolated from Garcinia bracteata and its important effect on NO levels. Nat Prod Res 2024:1-7. [PMID: 38656927 DOI: 10.1080/14786419.2024.2344742] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/14/2024] [Indexed: 04/26/2024]
Abstract
A new xanthone, allanxanthone F (1), and 10 known compounds were isolated from the ethanol extract of Garcinia bracteata. The structure of compound 1 was elucidated based on spectroscopic methods (UV, IR, HR-ESI-MS, and NMR). In addition, compounds 1-9 were assessed for their anti-inflammatory activities based on the expression of nitric oxide (NO) levels on lipopolysaccharide (LPS)-induced RAW264.7 macrophages, and compounds 1-3, 4 and 6-9 suggested potential anti-inflammatory activities.
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Affiliation(s)
- Changfen Li
- School of Chinese Materia Medica and Yunnan Key Laboratory of Southern Medicinal Resource, Yunnan University of Chinese Medicine, Kunming, China
| | - Qiao Wang
- School of Chinese Materia Medica and Yunnan Key Laboratory of Southern Medicinal Resource, Yunnan University of Chinese Medicine, Kunming, China
| | - Yanjiao Liu
- School of Chinese Materia Medica and Yunnan Key Laboratory of Southern Medicinal Resource, Yunnan University of Chinese Medicine, Kunming, China
| | - Binbin Liao
- School of Chinese Materia Medica and Yunnan Key Laboratory of Southern Medicinal Resource, Yunnan University of Chinese Medicine, Kunming, China
| | - Xinjian Zhang
- Baoshan College of Traditional Chinese Medicine, Baoshan, China
| | - Lingling Chen
- Baoshan College of Traditional Chinese Medicine, Baoshan, China
| | - Jianying Zhang
- School of Chinese Materia Medica and Yunnan Key Laboratory of Southern Medicinal Resource, Yunnan University of Chinese Medicine, Kunming, China
| | - Hongyun Wang
- Baoshan College of Traditional Chinese Medicine, Baoshan, China
| | - Aixue Zuo
- School of Chinese Materia Medica and Yunnan Key Laboratory of Southern Medicinal Resource, Yunnan University of Chinese Medicine, Kunming, China
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2
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Farasati Far B, Gouranmohit G, Naimi-Jamal MR, Neysani E, El-Nashar HAS, El-Shazly M, Khoshnevisan K. The potential role of Hypericum perforatum in wound healing: A literature review on the phytochemicals, pharmacological approaches, and mechanistic perspectives. Phytother Res 2024. [PMID: 38600756 DOI: 10.1002/ptr.8204] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 03/18/2024] [Accepted: 03/21/2024] [Indexed: 04/12/2024]
Abstract
St. John's Wort, commonly known as Hypericum perforatum L., is a flowering plant in the Clusiaceae family that traditionally been employed for treating anxiety, depression, wounds, burns, sunburn, irritation, and stomach ailments. This review provides a synopsis of H. perforatum L. phytoconstituents and their biological effects, highlighting its beneficial therapeutic properties for dermatological indications, as well as its antioxidant, antimicrobial, anti-inflammatory, and anti-angiogenic activity in various applications including wound healing and skin conditions such as eczema, sun burn and minor burns also spastic paralysis, stiff neck and mood disorders as anti-depressant and nerve pains such as neuralgia. The data were collected from several databases as Web of Science PubMed, ScienceDirect, Scopus and Google Scholar using the terms: "H. perforatum L.", "H. perforatum L. /phytochemistry," and "H. perforatum extracts/wound healing" collected from 1994 to 2023. The findings suggest H. perforatum L. acts through various mechanisms and plays a role in each phase of the wound healing process, including re-epithelialization, angiogenesis, wound contraction, and connective tissue regeneration. H. perforatum L. enhances collagen deposition, decreases inflammation, inhibits fibroblast migration, and promotes epithelialization by increasing the number of fibroblasts with polygonal shape and the number of collagen fibers within fibroblasts. H. Perforatum L. extracts modulate the immune response and reduce inflammation were found to accelerate the wound healing process via inhibition of inflammatory mediators' production like interleukin-6, tumor necrosis factor-α, cyclooxygenase-2 gene expression, and inducible nitric oxide synthase. Thus, H. perforatum L. represents a potential remedy for a wide range of dermatological problems, owing to its constituents with beneficial therapeutic properties. H. perforatum L. could be utilized in the development of novel wound healing therapies.
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Affiliation(s)
- Bahareh Farasati Far
- Research Laboratory of Green Organic Synthesis and Polymers, Department of Chemistry, Iran University of Science and Technology, Tehran, Iran
| | - Ghazaleh Gouranmohit
- Faculty of Pharmaceutical Chemistry, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Mohammad Reza Naimi-Jamal
- Research Laboratory of Green Organic Synthesis and Polymers, Department of Chemistry, Iran University of Science and Technology, Tehran, Iran
| | - Erfan Neysani
- Pharmaceutical Sciences Research Center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Heba A S El-Nashar
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Mohamed El-Shazly
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Kamyar Khoshnevisan
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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3
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Herbert LA, Bruguière A, Derbré S, Richomme P, Peña-Rodríguez LM. 13C NMR dereplication-assisted isolation of bioactive polyphenolic metabolites from Clusia flava Jacq. Nat Prod Res 2024; 38:1089-1098. [PMID: 36214555 DOI: 10.1080/14786419.2022.2130917] [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: 12/21/2021] [Revised: 09/19/2022] [Accepted: 09/25/2022] [Indexed: 10/17/2022]
Abstract
Presently it is estimated that many of the approximately 4000 new natural products isolated every year following complicated, long, and expensive isolation processes are already known; because of this, developing new strategies for locating secondary metabolites of interest in complex extracts or fractions is important. Currently, chromatographic and spectroscopic techniques are being used to optimize the isolation and identification of natural products. In this investigation we have used 13C NMR dereplication analyses for the quick identification of a number of triterpenes (friedelin, lupeol, betulinic acid), sterols (euphol, β-sitosterol) and fatty acids (palmitic acid) present in semipurified fractions obtained from the stem bark extract of Clusia flava and to assist in the isolation of the bioactive metabolites trapezifolixanthone and paralycolin A. The complete and correct assignment of the 1H and 13C NMR spectroscopic data for paralycolin A is reported for the first time and the antioxidant and antiAGEs activity of both metabolites is described.
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Affiliation(s)
- Luis A Herbert
- Centro de Investigación Científica de Yucatán, Unidad de Biotecnología, Mérida, Yucatán, México
| | - Antoine Bruguière
- Department of Pharmacy, Faculty of Health Sciences, SONAS, EA921, UNIV Angers, SFR QUASAV, Angers, France
| | - Séverine Derbré
- Department of Pharmacy, Faculty of Health Sciences, SONAS, EA921, UNIV Angers, SFR QUASAV, Angers, France
| | - Pascal Richomme
- Department of Pharmacy, Faculty of Health Sciences, SONAS, EA921, UNIV Angers, SFR QUASAV, Angers, France
| | - Luis M Peña-Rodríguez
- Centro de Investigación Científica de Yucatán, Unidad de Biotecnología, Mérida, Yucatán, México
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4
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Noleto-Dias C, Farag MA, Porzel A, Tavares JF, Wessjohann LA. A multiplex approach of MS, 1D-, and 2D-NMR metabolomics in plant ontogeny: A case study on Clusia minor L. organs (leaf, flower, fruit, and seed). Phytochem Anal 2024; 35:445-468. [PMID: 38069552 DOI: 10.1002/pca.3300] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 10/09/2023] [Indexed: 04/13/2024]
Abstract
INTRODUCTION The genus Clusia L. is mostly recognised for the production of prenylated benzophenones and tocotrienol derivatives. OBJECTIVES The objective of this study was to map metabolome variation within Clusia minor organs at different developmental stages. MATERIAL AND METHODS In total 15 organs/stages (leaf, flower, fruit, and seed) were analysed by UPLC-MS and 1H- and heteronuclear multiple-bond correlation (HMBC)-NMR-based metabolomics. RESULTS This work led to the assignment of 46 metabolites, belonging to organic acids(1), sugars(2) phenolic acids(1), flavonoids(3) prenylated xanthones(1) benzophenones(4) and tocotrienols(2). Multivariate data analyses explained the variability and classification of samples, highlighting chemical markers that discriminate each organ/stage. Leaves were found to be rich in 5-hydroxy-8-methyltocotrienol (8.5 μg/mg f.w.), while flowers were abundant in the polyprenylated benzophenone nemorosone with maximum level detected in the fully mature flower bud (43 μg/mg f.w.). Nemorosone and 5-hydroxy tocotrienoloic acid were isolated from FL6 for full structural characterisation. This is the first report of the NMR assignments of 5-hydroxy tocotrienoloic acid, and its maximum level was detected in the mature fruit at 50 μg/mg f.w. Seeds as typical storage organ were rich in sugars and omega-6 fatty acids. CONCLUSION To the best of our knowledge, this is the first report on a comparative 1D-/2D-NMR approach to assess compositional differences in ontogeny studies compared with LC-MS exemplified by Clusia organs. Results derived from this study provide better understanding of the stages at which maximal production of natural compounds occur and elucidate in which developmental stages the enzymes responsible for the production of such metabolites are preferentially expressed.
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Affiliation(s)
- Clarice Noleto-Dias
- Natural and Synthetic Bioactive Products Graduate Program, Federal University of Paraíba, João Pessoa, PB, Brazil
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
| | - Mohamed A Farag
- Pharmacognosy Department, College of Pharmacy, Cairo University, Cairo, Egypt
| | - Andrea Porzel
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
| | - Josean F Tavares
- Natural and Synthetic Bioactive Products Graduate Program, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Ludger A Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
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5
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Dos Santos IIP, Silva MDCC, Ferraz CG, Ribeiro PR. Flavonoids, biphenyls and xanthones from the genus Clusia: chemistry, biological activities and chemophenetics relevance. Nat Prod Res 2024:1-14. [PMID: 38498692 DOI: 10.1080/14786419.2024.2330515] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 03/01/2024] [Indexed: 03/20/2024]
Abstract
Clusia is one of the most important genera of the Clusiaceae family, comprising up to 400 species. This review describes the identification of twenty-two flavonoids from Clusia species, which includes five flavonols (1-4 and 11), six flavones (5-10), one catechin (12), one flavanone (13), and nine biflavonoids (14-22). O- and C-glycosylation are frequently observed amongst these flavonoids. Furthermore, seven biphenyls (23-29) and nine xanthones (30-38) have been isolated from Clusia species. Biphenyls and xanthones show limited occurrence within the genus, but together with biosynthetic insights, they might offer important chemophenetics leads for the consolidation of the genus Clusia within the Clusiaceae family. Altogether, this work provides an overview of the chemistry of the genus Clusia in terms of flavonoids, biphenyls and xanthones, as well as it discusses biological activities and chemophenetics of the isolated compounds, when appropriate.
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Affiliation(s)
- Ismirna I P Dos Santos
- Metabolomics Research Group, Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil
- Programa de Pós-Graduação em Química Aplicada, Departamento de Ciências Exatas e da Terra - Campus I da UNEB, Salvador, Brazil
| | - Maria do Carmo C Silva
- Metabolomics Research Group, Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil
| | - Caline G Ferraz
- Metabolomics Research Group, Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil
- Programa de Pós-Graduação em Química Aplicada, Departamento de Ciências Exatas e da Terra - Campus I da UNEB, Salvador, Brazil
| | - Paulo R Ribeiro
- Metabolomics Research Group, Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil
- Programa de Pós-Graduação em Química Aplicada, Departamento de Ciências Exatas e da Terra - Campus I da UNEB, Salvador, Brazil
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6
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Rifaldi, Fadlan A, Fatmawati S, Purnomo AS, Ersam T. Antiplasmodial and anticancer activities of xanthones isolated from Garcinia bancana Miq. Nat Prod Res 2024; 38:885-890. [PMID: 37029625 DOI: 10.1080/14786419.2023.2199212] [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: 09/29/2022] [Accepted: 03/28/2023] [Indexed: 04/09/2023]
Abstract
This report describes the isolation and characterization of xanthones from Garcinia bancana Miq. and evaluates their antiplasmodial and anticancer activities. Macluraxanthone (1), isojacareubin (2), and gerontoxanthone C (3) were isolated from the stem bark of G. bancana Miq. for the first time. In silico molecular docking studies revealed the hydrogen bonding and steric interactions between xanthones (1-3) and PfLDH/VEGFR2. The in vitro antiplasmodial activity was assayed against the chloroquine-sensitive Plasmodium falciparum strain 3D7 by the lactate dehydrogenase (LDH) method. The anticancer evaluation was evaluated against the A549, MCF-7, HeLa, and B-16 cancer cell lines. Compounds (1) (IC50 8.45-16.71 μM) and (3) (IC50 9.69-14.86 μM) showed more potent anticancer activity than compound (2) (IC50 25.46-31.31 μM), as well for their antiplasmodial activity (4.28 μM, 5.52 μM, 11.45 μM). Our findings indicated the potential of G. bancana Miq. as a natural resource of antiplasmodial and anticancer compounds.
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Affiliation(s)
| | - Arif Fadlan
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Sri Fatmawati
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Adi Setyo Purnomo
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Taslim Ersam
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
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7
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Naing S, Sandech N, Maiuthed A, Chongruchiroj S, Pratuangdejkul J, Lomarat P. Garcinia mangostana L. Pericarp Extract and Its Active Compound α-Mangostin as Potential Inhibitors of Immune Checkpoint Programmed Death Ligand-1. Molecules 2023; 28:6991. [PMID: 37836835 PMCID: PMC10574194 DOI: 10.3390/molecules28196991] [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: 08/22/2023] [Revised: 09/22/2023] [Accepted: 09/30/2023] [Indexed: 10/15/2023] Open
Abstract
α-Mangostin, a major xanthone found in mangosteen (Garcinia mangostana L., Family Clusiaceae) pericarp, has been shown to exhibit anticancer effects through multiple mechanisms of action. However, its effects on immune checkpoint programmed death ligand-1 (PD-L1) have not been studied. This study investigated the effects of mangosteen pericarp extract and its active compound α-mangostin on PD-L1 by in vitro and in silico analyses. HPLC analysis showed that α-mangostin contained about 30% w/w of crude ethanol extract of mangosteen pericarp. In vitro experiments in MDA-MB-231 triple-negative breast cancer cells showed that α-mangostin and the ethanol extract significantly inhibit PD-L1 expression when treated for 72 h with 10 µM or 10 µg/mL, respectively, and partially inhibit glycosylation of PD-L1 when compared to untreated controls. In silico analysis revealed that α-mangostin effectively binds inside PD-L1 dimer pockets and that the complex was stable throughout the 100 ns simulation, suggesting that α-mangostin stabilized the dimer form that could potentially lead to degradation of PD-L1. The ADMET prediction showed that α-mangostin is lipophilic and has high plasma protein binding, suggesting its greater distribution to tissues and its ability to penetrate adipose tissue such as breast cancer. These findings suggest that α-mangostin-rich mangosteen pericarp extract could potentially be applied as a functional ingredient for cancer chemoprevention.
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Affiliation(s)
- Sandar Naing
- Department of Food Chemistry, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand;
| | - Nichawadee Sandech
- Centre of Biopharmaceutical Science for Healthy Ageing, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand; (N.S.); (A.M.)
| | - Arnatchai Maiuthed
- Centre of Biopharmaceutical Science for Healthy Ageing, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand; (N.S.); (A.M.)
- Department of Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | - Sumet Chongruchiroj
- Department of Microbiology, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand; (S.C.); (J.P.)
| | - Jaturong Pratuangdejkul
- Department of Microbiology, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand; (S.C.); (J.P.)
| | - Pattamapan Lomarat
- Department of Food Chemistry, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand;
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8
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Hien HM, Viet Hung T, Heng PWS. A new chromanone acid derivative from the nut oil resin of Calophyllum inophyllum. J Asian Nat Prod Res 2023; 25:1021-1028. [PMID: 37200202 DOI: 10.1080/10286020.2023.2208530] [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] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 04/25/2023] [Accepted: 04/25/2023] [Indexed: 05/20/2023]
Abstract
One novel chromanone acid derivative, namely inocalophylline C (1), together with one known compound calophyllolide (2), were isolated from the methanolic extract of nut oil resin of Calophyllum inophyllum L., a medicinal plant widely distributed in Vietnam. The isolated compound structures were elucidated by spectroscopic methods and the absolute configuration of 1 was established by the single-crystal X-ray crystallography as ethyl (R) 3-((2 R,3R,6R)-4-hydroxy-2,3-dimethyl-6-((R)-5-methyl-2-(prop-1-en-2-yl)hex-4-en-1-yl)-6-(3-methylbut-2-en-1-yl)-5,7-dioxo-3,5,6,7-tetrahydro-2H-chromen-8-yl)-3-phenylpropanoate.
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Affiliation(s)
- Ha Minh Hien
- Institute of Drug Quality Control-Ho Chi Minh City, Ho Chi Minh City, 700000, Vietnam
| | - Tran Viet Hung
- Institute of Drug Quality Control-Ho Chi Minh City, Ho Chi Minh City, 700000, Vietnam
| | - Paul W S Heng
- Department of Pharmacy, GEA-NUS Pharmaceutical Processing Research Laboratory, National University of Singapore, 117543, Singapore
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9
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Cuesta-Rubio O, Monzote L, Fernández-Acosta R, Pardo-Andreu GL, Rastrelli L. A review of nemorosone: Chemistry and biological properties. Phytochemistry 2023; 210:113674. [PMID: 37044362 DOI: 10.1016/j.phytochem.2023.113674] [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] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 04/03/2023] [Accepted: 04/04/2023] [Indexed: 06/19/2023]
Abstract
Nemorosone is a bicyclic polyprenylated acylphloroglucinol derivative originally isolated from Clusia spp. and it can be obtained through chemical synthesis employing different synthetic strategies. Since its discovery, it has attracted great attention both from a biological and chemical viewpoint. In the present article, we attempted to review various chemical and biological topics around nemorosone, with an emphasis on its antiproliferative activities. For this purpose, relevant data was collected from different scientific databases including Google Scholar, PubMed, Scopus and ISI Web of Knowledge. This natural compound has shown activity against several types of malignancies such as leukemia, human colorectal, pancreatic, and breast cancer because it modulates multiple molecular pathways. Nemorosone has both cytostatic and cytotoxic activity and it also seems to induce apoptosis and ferroptosis. Additionally, it has antimicrobial capabilities against Gram-positive bacteria and parasites belonging to genus Leishmania. Its promising antiproliferative pre-clinical effects deserve further attention for anticancer and anti-parasitic drug development and translation to the clinic.
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Affiliation(s)
- Osmany Cuesta-Rubio
- Universidad Técnica de Machala, Facultad de Ciencias Químicas y de la Salud, Ave. Panamericana km 5½, 070101, Machala, Ecuador.
| | - Lianet Monzote
- Departamento de Parasitología, Instituto de Medicina Tropical Pedro Kourí, Autopista Novia del Mediodía Km 6 1/2, 11400, La Habana, Cuba.
| | - Roberto Fernández-Acosta
- Department of Pharmacy, Institute of Pharmaceutical and Food Sciences, University of Havana, 222 St. # 2317, La Coronela, 13600, Havana, Cuba.
| | - Gilberto Lázaro Pardo-Andreu
- Center for Research and Biological Evaluation, Institute of Pharmaceutical and Food Sciences, University of Havana, 222 St. # 2317, 13600, Havana, Cuba.
| | - Luca Rastrelli
- Universitá degli Studi di Salerno, Dipartimento di Farmacia, Via Giovanni Paolo II, 84084, Fisciano, SA, Italy; NBFC, National Biodiversity Future Center, Palermo, 90133, Italy.
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10
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Kaennakam S, Sukandar ER, Phasuthan P, Yahuafai J, Onsrisawat P, Mulya F, Parasuk V, Phuwapraisirisan P, Tip-Pyang S. Garcowacinols A-J, cytotoxic polyprenylated benzoylphloroglucinol derivatives from the twigs of Garcinia cowa. Phytochemistry 2023; 209:113622. [PMID: 36849096 DOI: 10.1016/j.phytochem.2023.113622] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 02/20/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
Ten undescribed polyprenylated benzoylphloroglucinol derivatives named garcowacinols A‒J (1-10) and four known analogues (11-14) were isolated from the twigs of Garcinia cowa. Their structures were determined by spectroscopic data analysis (1D and 2D NMR and HRESIMS), and their absolute configurations were established based on NOESY and ECD data. All isolated compounds were evaluated for their cytotoxicity against five types of human cancer cells (KB, HeLa S3, MCF-7, Hep G2, and HT-29) as well as Vero cells by MTT colorimetric assay. Garcowacinol C was significantly active against all the five cancer cells with IC50 values in the range of 0.61-9.50 μM. Selective proliferative inhibitions were observed on garcowacinol F and 7-epiclusianone against KB cells, and guttiferone Q toward MCF-7 cells with IC50 values less than 10 μM.
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Affiliation(s)
- Sutin Kaennakam
- Department of Agro-Industrial, Food, and Environmental Technology, Faculty of Applied Science, King Mongkut's University of Technology North Bangkok (KMUTNB), Bangkok, 10800, Thailand.
| | - Edwin R Sukandar
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Pattama Phasuthan
- Department of Agro-Industrial, Food, and Environmental Technology, Faculty of Applied Science, King Mongkut's University of Technology North Bangkok (KMUTNB), Bangkok, 10800, Thailand
| | - Jantana Yahuafai
- Natural Products Research Section, Research Division, National Cancer Institute, Bangkok, 10400, Thailand
| | - Prayumat Onsrisawat
- Natural Products Research Section, Research Division, National Cancer Institute, Bangkok, 10400, Thailand
| | - Fadjar Mulya
- Center of Excellence in Computational Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Vudhichai Parasuk
- Center of Excellence in Computational Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Preecha Phuwapraisirisan
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Santi Tip-Pyang
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
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11
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Sukandar ER, Kaennakam S, Wongsuwan S, Chatwichien J, Krobthong S, Yingchutrakul Y, Mahatnirunkul T, Mulya F, Parasuk V, Harding DJ, Poldorn P, Rungrotmongkol T, Tip-Pyang S, Aonbangkhen C, Chavasiri W. Schomburginones A‒J, geranylated benzophenones from the leaves of Garcinia schomburgkiana and their cytotoxic and anti-inflammatory activities. Phytochemistry 2023; 211:113701. [PMID: 37127017 DOI: 10.1016/j.phytochem.2023.113701] [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] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 04/09/2023] [Accepted: 04/28/2023] [Indexed: 05/03/2023]
Abstract
Ten undescribed benzophenones, schomburginones A-J, together with 14 known analogs were isolated from the leaves of Garcinia schomburgkiana, an edible plant native to the Indochina region. The structures of the undescribed compounds were elucidated by NMR combined with HRMS spectroscopy, while their absolute configurations were determined using ECD and single-crystal X-ray diffraction analysis. The isolated metabolites represent benzophenone derivatives containing a modified monoterpene unit, including tri- and tetracyclic skeletons, which are rarely found in genus Garcinia. The cytotoxic evaluation on three cancerous cell lines demonstrated that schomburginone G, schomburginone H, and 3-geranyl-2,4,6-trihydroxybenzophenone were active against HeLa cells with IC50 values in the range of 12.2-15.7 μM, respectively, and selective compared to the non-cancerous L929 cells (SI > 3.5). In addition, the three cytotoxic compounds together with clusiacyclol A showed significant NO inhibitory activity in RAW 264.7 macrophage cells over 85% inhibition without obvious cytotoxicity at a final concentration of 100 μM. The promising activities of these compounds in cytotoxic and anti-inflammatory assays make them attractive for further study in the development of anticancer drugs.
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Affiliation(s)
- Edwin R Sukandar
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Sutin Kaennakam
- Department of Agro-Industrial, Food, and Environmental Technology, Faculty of Applied Science, King Mongkut's University of Technology North Bangkok (KMUTNB), Bangkok, 10800, Thailand
| | - Sutthida Wongsuwan
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Jaruwan Chatwichien
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok, 10210, Thailand
| | - Sucheewin Krobthong
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Center for Neuroscience, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Yodying Yingchutrakul
- Center for Neuroscience, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand; National Omics Center (NOC), NSTDA, Pathum Thani, 12120, Thailand
| | - Thanisorn Mahatnirunkul
- National Nanotechnology Center (NANOTEC), 111 Thailand Science Park, Phahonyothin Rd, Klong Nueng, Klong Luang, Pathum Thani, 12120, Thailand
| | - Fadjar Mulya
- Center of Excellence in Computational Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Vudhichai Parasuk
- Center of Excellence in Computational Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - David J Harding
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Preeyaporn Poldorn
- Center of Excellence in Biocatalyst and Sustainable Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Thanyada Rungrotmongkol
- Center of Excellence in Biocatalyst and Sustainable Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Santi Tip-Pyang
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Chanat Aonbangkhen
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Warinthorn Chavasiri
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand.
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12
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Rifaldi, Sukandar ER, Fadlan A, Fatmawati S, Purnomo AS, Wairata J, Ersam T. A new biphenyl from the stem bark of Garcinia macrantha A.C.Sm. Nat Prod Res 2023:1-6. [PMID: 36938907 DOI: 10.1080/14786419.2023.2190113] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
In our continuation of exploring antidiabetic agents from Garcinia species, we found that the methanolic extract of G. macrantha A.C.Sm. exhibited considerable α-glucosidase inhibition of 58.20 ± 0.37% in sucrose substrate and 39.86 ± 2.07% in maltose substrate at 100 μg/mL. Phytochemical investigation on the extract revealed the presence of a new biphenyl, macrabiphenyl A, which was successfully elucidated by means of spectroscopic methods (HRESIMS and 1D and 2D NMR). The α-glucosidase inhibitory evaluation indicated that the new compound was weakly active against the enzyme.
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Affiliation(s)
- Rifaldi
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Edwin R Sukandar
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Arif Fadlan
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Sri Fatmawati
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Adi S Purnomo
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
| | - Johanis Wairata
- Department of Agrotechnology, Faculty of Natural Science and Engineering Technology, University of Halmahera, Tobelo, North Halmahera, Indonesia
| | - Taslim Ersam
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
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13
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Nguengang RT, Tchegnitegni BT, Nono ECN, Bellier Tabekoueng G, Fongang YSF, Bankeu JJK, Chouna JR, Nkenfou CN, Fekam FB, Sewald N, Lenta BN. Constituents of the Stem Bark of Symphonia globulifera Linn. f. with Antileishmanial and Antibacterial Activities. Molecules 2023; 28:molecules28062473. [PMID: 36985446 PMCID: PMC10053230 DOI: 10.3390/molecules28062473] [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: 02/15/2023] [Revised: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 03/30/2023] Open
Abstract
The chemical investigation of the n-hexane fraction from the methanol extract of the stem bark of Symphonia globulifera Linn f., which displayed good in vitro activity against Leishmania donovani NR-48822 promastigotes (IC50 43.11 µg/mL), led to the isolation of three previously unreported polyprenylated benzophenones, guttiferone U (1), V (2)/W (3), and a new tocotrienol derivative named globuliferanol (4), along with 11 known compounds (5-15). Their structures were elucidated based on their NMR and MS data. Some isolated compounds were assessed for both their antileishmanial and cytotoxic activities against L. donovani and Vero cells, respectively. Guttiferone K (5) exhibited the best potency (IC50 3.30 μg/mL), but with low selectivity to Vero cells. The n-hexane fraction and some compounds were also assessed in vitro for their antibacterial activity against seven bacterial strains. All the samples exhibited moderate to potent antibacterial activity (MICs ≤ 15.6 µg/mL) against at least one of the tested strains.
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Affiliation(s)
- Ruland Tchuinkeu Nguengang
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé P.O. Box 812, Cameroon
- Department of Chemistry, Higher Teacher Training College, University of Yaoundé I, Yaoundé P.O. Box 47, Cameroon
| | | | - Eric Carly Nono Nono
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé P.O. Box 812, Cameroon
| | | | | | - Jean Jules Kezetas Bankeu
- Department of Chemistry, Faculty of Science, The University of Bamenda, Bambili P.O. Box 39, Cameroon
| | - Jean Rodolphe Chouna
- Department of Chemistry, Faculty of Science, University of Dschang, Dschang P.O. Box 67, Cameroon
| | - Céline Nguefeu Nkenfou
- Department of Biology, Higher Teacher Training College, University of Yaoundé I, Yaoundé P.O. Box 47, Cameroon
| | - Fabrice Boyom Fekam
- Antimicrobial & Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, University of Yaoundé I, Yaoundé P.O. Box 812, Cameroon
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, D-33501 Bielefeld, Germany
| | - Bruno Ndjakou Lenta
- Department of Chemistry, Higher Teacher Training College, University of Yaoundé I, Yaoundé P.O. Box 47, Cameroon
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14
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Li XX, Yan Y, Zhang J, Ding K, Xia CY, Pan XG, Shi YJ, Xu JK, He J, Zhang WK. Hyperforin: A natural lead compound with multiple pharmacological activities. Phytochemistry 2023; 206:113526. [PMID: 36442576 DOI: 10.1016/j.phytochem.2022.113526] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 06/16/2023]
Abstract
Hypericum perforatum L. (Clusiaceae), commonly known as St. John's wort, has a rich historical background as one of the oldest and most widely studied herbal medicines. Hyperforin is the main antidepressant active ingredient of St. John's wort. In recent years, hyperforin has attached increasing attention due to its multiple pharmacological activities. In this review, the information on hyperforin was systematically summarized. Hyperforin is considered to be a lead compound with diverse pharmacological activities including anti-depression, anti-tumor, anti-dementia, anti-diabetes and others. It can be obtained by extraction and synthesis. Further pharmacological studies and more precise detection methods will help develop a value for hyperforin. In addition, structural modification and pharmaceutical preparation technology will be beneficial to promoting the research progress of hyperforin based innovative drugs. Although these works are full of known and unknown challenges, researchers are still expected to make hyperforin play a greater value.
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Affiliation(s)
- Xin-Xin Li
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, PR China; School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Yu Yan
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, PR China
| | - Jia Zhang
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Kang Ding
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Cong-Yuan Xia
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, PR China
| | - Xue-Ge Pan
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Yan-Jing Shi
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Jie-Kun Xu
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, PR China.
| | - Jun He
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, PR China.
| | - Wei-Ku Zhang
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, PR China.
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15
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Chouni A, Paul S. A Comprehensive Review of the Phytochemical and Pharmacological Potential of an Evergreen Plant Garcinia cowa. Chem Biodivers 2023; 20:e202200910. [PMID: 36628555 DOI: 10.1002/cbdv.202200910] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 01/12/2023]
Abstract
Garcinia cowa of the Clusiaceae family, native to South-East Asia used in traditional medicine. It has antipyretic, antimicrobial, and many other biological activities. In this review, a thorough study of this plant's chemical constituents and pharmacological and therapeutic effects was conducted from the research articles from PubMed, Science Direct, Google Scholar, and Scopus from 1977 to 2022. Reported secondary metabolites are enriched with xanthones, phloroglucinols, depsidones, steroids, etc. α-mangostin, β-mangostin, cowaxanthone, rubraxanthone, cowanin, norcowanin, etc. represent the major xanthones. This article discusses the relationship between the different functional groups in xanthone compounds and their bioactivity against cancer, diabetes, bacteria, leishmania, malaria, and inflammation. This review is a comprehensive compendium of major bioactive molecules and its implication for human disease.
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Affiliation(s)
- Anirban Chouni
- Laboratory of Cell and Molecular Biology, Department of Botany, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, West Bengal, India
| | - Santanu Paul
- Laboratory of Cell and Molecular Biology, Department of Botany, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, West Bengal, India
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16
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Trinh DH, Huynh ON, Nguyen TQ, Nguyen HT, Nguyen TLT, Pham HD, Nguyen LHD, Tran PT. Polyisoprenylated benzophenones and xanthones from the pericarp of Garcinia planchonii Pierre. Nat Prod Res 2023; 37:188-196. [PMID: 34498967 DOI: 10.1080/14786419.2021.1960328] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Two new polyisoprenylated benzophenones, planchoniones A (1) and B (2), together with two known benzophenones (3, 4) and six known xanthones (5-10), were isolated from an ethyl acetate extract of the pericarp of Garcinia planchonii Pierre. Their structures were established using spectroscopic methods, mainly 1D and 2D NMR. The four benzophenones were evaluated for their cytotoxicity against MCF-7 human breast cancer cells, and showed almost no activity. Meanwhile, compounds 5-10 were investigated for their inhibitory effects towards α-glucosidase, and γ-mangostin (5) exhibited the most remarkable effect with IC50 value of 15.3 ± 0.9 µM (compared with acarbose, IC50 = 224.9 ± 3.6 µM).
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Affiliation(s)
- Duong H Trinh
- Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam.,Department of Reference Substances, Ho Chi Minh City Institute of Drug Quality Control, Ho Chi Minh City, Vietnam
| | - Oanh N Huynh
- Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Trung Q Nguyen
- Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Hieu T Nguyen
- Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Thao-Ly T Nguyen
- Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Hung D Pham
- Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Lien-Hoa D Nguyen
- Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Phuong T Tran
- Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
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17
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Ha NTT, Tuyen NV, Tra NT, Anh LTT, Son NT, Litaudon M, Van Cuong P, Tai BH, Kiem PV. Garcimckeans A-C, three new xanthones from the stems of Garcinia mckeaniana, and their cytotoxic activity. Nat Prod Res 2023; 37:77-84. [PMID: 34338100 DOI: 10.1080/14786419.2021.1950717] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Three new xanthones, garcimckeans A-C (1-3) were isolated from the methanol extract of the stems of Garcinia mckeaniana (Clusiaceae). Their structures were established by extensive spectroscopic analysis (HR-ESI-MS and 1 D and 2 D NMR) and by comparison of the spectral data with those reported in the literature. Compounds 1-3 displayed weak cytotoxic activity toward KB, Lu, HepG2, and MCF7 cell lines using the MTT assay with IC50 values ranging from 71.03 ± 2.93 to 90.40 ± 7.13 µM compared to that of the positive control compound, ellipticine (IC50: 1.22 ± 0.10 ∼ 2.44 ± 0.2 µM).
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Affiliation(s)
- Nguyen Thi Thu Ha
- Institute of Chemistry, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam
| | - Nguyen Van Tuyen
- Institute of Chemistry, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam
| | - Nguyen Thanh Tra
- Institute of Chemistry, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam
| | - Le Thi Tu Anh
- Institute of Chemistry, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam
| | - Mac Litaudon
- Institute of Chemistry of Natural Substances, CNRS-ICSN, UPR 2301, University Paris-Sud, Gif-sur-Yvette, France
| | - Pham Van Cuong
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam.,Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam
| | - Bui Huu Tai
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam.,Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam
| | - Phan Van Kiem
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam.,Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Caugiay, Hanoi, Vietnam
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18
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Mohamed GA, Ibrahim SRM, Hareeri RH, Binmahfouz LS, Bagher AM, Abdallah HM, Elsaed WM, El-Agamy DS. Garcinone E Mitigates Oxidative Inflammatory Response and Protects against Experimental Autoimmune Hepatitis via Modulation of Nrf2/HO-1, NF-κB and TNF-α/JNK Axis. Nutrients 2022; 15:nu15010016. [PMID: 36615674 PMCID: PMC9824319 DOI: 10.3390/nu15010016] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Garcinia mangostana L. (Clusiaceae), a popular tropical fruit for its juiciness and sweetness, is an opulent fountain of prenylated and oxygenated xanthones with a vast array of bio-activities. Garcinone E (GE), a xanthone derivative reported from G. mangostana, possesses cytotoxic and aromatase inhibitory activities. The present research endeavors to investigate the hepato-protection efficaciousness of GE on concanavalin-A (Con-A)-instigated hepatitis. Results showed that GE pretreating noticeably diminishes both the serum indices (transaminases, ALP, LDH, and γ-GT) and histopathological lesions of the liver. It counteracted neutrophil and CD4+ infiltration into the liver. GE furthered the Nrf2 genetic expression and its antioxidants' cascade, which resulted in amelioration of Con-A-caused oxidative stress (OS), lipid per-oxidative markers (4-HNE, MDA, PC) reduction, and intensified antioxidants (TAC, SOD, GSH) in the hepatic tissue. Additionally, GE prohibited NF-ĸB (nuclear factor kappa-B) activation and lessened the genetics and levels of downstream cytokines (IL1β and IL6). Moreover, the TNF-α/JNK axis was repressed in GE-treated mice, which was accompanied by attenuation of Con-A-induced apoptosis. These findings demonstrated the protective potential of GE in Con-A-induced hepatitis which may be associated with Nrf2/HO-1 signaling activation and OS suppression, as well as modulation of the NF-κB and TNF-α/JNK/apoptosis signaling pathway. These results suggest the potential use of GE as a novel hepato-protective agent against autoimmune hepatitis.
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Affiliation(s)
- Gamal A. Mohamed
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: ; Tel.: +966-597636182
| | - Sabrin R. M. Ibrahim
- Department of Chemistry, Preparatory Year Program, Batterjee Medical College, Jeddah 21442, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Rawan H. Hareeri
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Lenah S. Binmahfouz
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Amina M. Bagher
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Hossam M. Abdallah
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Wael M. Elsaed
- Department of Anatomy and Embryology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Dina S. El-Agamy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
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19
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Yu M, Wang SJ, Li H, Zhang GJ. Xanthones from the stems of Calophyllum membranaceum Gardn. et Champ. and their anti-inflammatory activity. Phytochemistry 2022; 200:113246. [PMID: 35605809 DOI: 10.1016/j.phytochem.2022.113246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 05/13/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Eighteen undescribed xanthones, including six pairs of xanthone enantiomers, three xanthones, and three xanthone glycosides, together with one pair of known xanthone enantiomers and 12 known xanthones, were isolated from the stems of Calophyllum membranaceum Gardn. et Champ. Their structures were elucidated by spectroscopic analysis, and the absolute configuration of the enantiomers was determined by using experimental and calculated electronic circular dichroism data. All compounds were screened for their anti-inflammatory effects on LPS-induced BV-2 microglial cells. Among them, six compounds showed remarkable activities with IC50 values of 7.8-36.0 μM.
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Affiliation(s)
- Min Yu
- College of Pharmacy, Guilin Medical University, Guilin, 541004, People's Republic of China
| | - Su-Juan Wang
- College of Pharmacy, Guilin Medical University, Guilin, 541004, People's Republic of China
| | - Hua Li
- College of Pharmacy, Guilin Medical University, Guilin, 541004, People's Republic of China
| | - Gui-Jie Zhang
- College of Pharmacy, Guilin Medical University, Guilin, 541004, People's Republic of China.
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20
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Yang L, Zhang D, Li JB, Zhang X, Zhou N, Zhang WY, Lu H. Prenylated xanthones with α-glucosidase and α-amylase inhibitory effects from the pericarp of Garcinia mangostana. J Asian Nat Prod Res 2022; 24:624-633. [PMID: 34762536 DOI: 10.1080/10286020.2021.1967328] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 08/09/2021] [Indexed: 06/13/2023]
Abstract
Two new prenylated xanthones, mangoxanthones A-B (1-2), together with four known compounds 3-6, were isolated from the ethanol extract of the pericarp of Garcinia mangostana. The structures of these compounds have been elucidated based on spectroscopic analysis. The analysis results of chiral HPLC revealed compounds 1 and 2 were scalemic mixtures respectively. All isolated compounds were biologically evaluated for their α-glucosidase and α-amylase inhibitory effects using in-vitro assays. Compound 1 showed moderate inhibitory activities against α-glucosidase and α-amylase with IC50 of 29.06 ± 1.86 and 22.74 ± 2.07 μM, respectively. Molecular docking predicted the binding sites of compound 1 to α-glucosidase and α-amylase. A preliminary structure-activity relationship was discussed.
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Affiliation(s)
- Lei Yang
- Department of Nutrition, General Hospital of North Theater, PLA, Shenyang 110015, China
| | - Dan Zhang
- Department of Nutrition, General Hospital of North Theater, PLA, Shenyang 110015, China
| | - Jia-Bao Li
- Department of Nutrition, General Hospital of North Theater, PLA, Shenyang 110015, China
| | - Xi Zhang
- Department of Nutrition, General Hospital of North Theater, PLA, Shenyang 110015, China
| | - Nan Zhou
- Department of Nutrition, General Hospital of North Theater, PLA, Shenyang 110015, China
| | - Wen-Yue Zhang
- Department of Nutrition, General Hospital of North Theater, PLA, Shenyang 110015, China
| | - Hui Lu
- General Hospital of North Theater, PLA, Shenyang 110015, China
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21
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Shi Z, Tan X, Hu H, Zhang N, Duan Y, Guo Y, Feng H, Sun L, Chen G, Qi C, Zhang Y. Discovery of Undescribed Monoterpenoid Polyprenylated Acylphloroglucinols with Immunosuppressive Activities from Hypericum longistylum. Phytochemistry 2022; 198:113173. [PMID: 35337838 DOI: 10.1016/j.phytochem.2022.113173] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 03/18/2022] [Accepted: 03/20/2022] [Indexed: 06/14/2023]
Abstract
Acylphlorostylums A-G (1-7), seven undescribed monoterpenoid polyprenylated acylphloroglucinols, were isolated and identified from Hypericum longistylum. Significantly, acylphlorostylums A and B were the first monoterpenoid polyprenylated acylphloroglucinols possessing a dodecahydro-1H-benzo [b]cyclopenta [e]oxepine moiety bearing a 6/7/5 fused tricyclic ring system that assembled by the attack from 4-OH to C-13. In addition, acylphlorostylums A-G exhibited moderate in vitro immunosuppressive activity in anti-CD3/anti-CD28 monoclonal antibodies, lipopolysaccharide and concanavalin A-induced murine splenocyte proliferation, with IC50 values ranging from 1.51 ± 0.12 to 18.49 ± 1.67 μM, underscoring those isolates as novel chemical templates in the development of novel immunosuppressors.
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Affiliation(s)
- Zhengyi Shi
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Xiaosheng Tan
- Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, 430030, People's Republic of China
| | - Hong Hu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Na Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Yulin Duan
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Yi Guo
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Hao Feng
- Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, 430030, People's Republic of China
| | - Lingjuan Sun
- Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, 430030, People's Republic of China
| | - Gang Chen
- Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, 430030, People's Republic of China
| | - Changxing Qi
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China.
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
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22
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Sukandar ER, Kaennakam S, Raab P, Nöst X, Rassamee K, Bauer R, Siripong P, Ersam T, Tip-Pyang S, Chavasiri W. Cytotoxic and Anti-Inflammatory Activities of Dihydroisocoumarin and Xanthone Derivatives from Garcinia picrorhiza. Molecules 2021; 26:6626. [PMID: 34771035 DOI: 10.3390/molecules26216626] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/03/2021] [Accepted: 10/08/2021] [Indexed: 11/17/2022] Open
Abstract
Garcinia picrorhiza, a woody plant native to Sulawesi and Maluku Islands, Indonesia, has been traditionally used as a wound healing ointment. In our continuous search for bioactive compounds from this plant, 15 phenolic compounds were isolated from its stem bark, including a previously undescribed dihydroisocoumarin, 2'-hydroxyannulatomarin, and two undescribed furanoxanthones, gerontoxanthone C hydrate and 3'-hydroxycalothorexanthone. The structures of the new metabolites were elucidated on the basis of spectroscopic analysis, including 1D and 2D NMR and HRESIMS. Gerontoxanthone C hydrate possessed cytotoxicity against four cancer cells (KB, HeLa S3, MCF-7, and Hep G2) with IC50 values ranging from 5.6 to 7.5 µM. Investigation on the anti-inflammatory activities showed that 3'-hydroxycalothorexanthone inhibited NO production in RAW 264.7 and BV-2 cell lines with IC50 values of 16.4 and 13.8 µM, respectively, whereas only (-)-annulatomarin possessed inhibition activity on COX-2 enzyme over 10% at 20 µM. This work describes the presence of 3,4-dihydroisocoumarin structures with a phenyl ring substituent at C-3, which are reported the first time in genus Garcinia. These findings also suggest the potential of furanxanthone derivatives as cytotoxic and anti-inflammatory agents for further pharmacological studies.
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Darwati D, Safitri AN, Ambardhani N, Mayanti T, Nurlelasari N, Kurnia D. Effectiveness and Anticancer Activity of a Novel Phenolic Compound from Garcinia porrecta Against the MCF-7 Breast Cancer Cell Line in vitro and in silico. Drug Des Devel Ther 2021; 15:3523-3533. [PMID: 34408404 PMCID: PMC8366943 DOI: 10.2147/dddt.s321824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 07/15/2021] [Indexed: 12/09/2022]
Abstract
Background Cancer is a leading cause of death worldwide, with breast cancer being the most common invasive cancer type in women. Several therapeutic strategies have been explored to reduce the mortality rates of breast cancer. Chemotherapy is the most commonly used systemic treatment, but associated with numerous side-effects. Development of anticancer agents with high efficacy and minimal negative effects is therefore an important focus of research. Natural materials provide an excellent source of bioactive compounds. For instance, Garcinia porrecta from the Clusiaceae family has multiple pharmacological activities, including antioxidant, anti-inflammatory, antibacterial, antiviral, anti-HIV, antidepressant, and anticancer properties. Purpose The main objective of this study was to investigate the potential anticancer effects of compounds extracted from the bark of G. porrecta. Materials and Methods Our experiments were divided into three steps: (1) chromatographic isolation of compounds using various separation techniques, such as extraction, separation and purification, (2) characterization via infrared (IR), nuclear magnetic resonance (NMR) and mass spectroscopy, and (3) evaluation of anticancer activity in vitro (MTT assay) and in silico (via analysis of molecular docking against caspase-9, tumor necrosis factor alpha (TNF-α), estrogen receptor alpha (ER-α), and human epidermal growth factor receptor 2 (HER-2)). Results Depsidone (1) and benzophenone (2) from the ethyl acetate extract of bark of G. porrecta were identified as bioactive components. Examination of the activities of these compounds against MCF-7 cells revealed an IC50 value of 119.3 µg/mL for benzophenone, whereas IC50 for depsidone could not be estimated. Benzophenone activity was lower than that of the positive control doxorubicin (6.9 µg/mL). Depsidone showed the highest binding affinity for HER-2 (−9.2 kcal.mol-1) and benzophenone for ER-α (−8.0 kcal.mol-1). Conclusion Benzophenone displays potency as an anticancer agent through blocking ER-α.
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Affiliation(s)
- Darwati Darwati
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, 45363, West Java, Indonesia
| | - Ayu Nadila Safitri
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, 45363, West Java, Indonesia
| | - Nurul Ambardhani
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, 45363, West Java, Indonesia
| | - Tri Mayanti
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, 45363, West Java, Indonesia
| | - Nurlelasari Nurlelasari
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, 45363, West Java, Indonesia
| | - Dikdik Kurnia
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, 45363, West Java, Indonesia
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Fang QQ, Feng TT, Wang AZ, He WY, Wei RJ, Lu Q, Tan CH. Structurally diverse polyprenylated acylphloroglucinols from Hypericum uralum Buch.-Ham. ex D. Don. Phytochemistry 2021; 187:112771. [PMID: 33882428 DOI: 10.1016/j.phytochem.2021.112771] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 03/29/2021] [Accepted: 04/05/2021] [Indexed: 06/12/2023]
Abstract
Uralins A - D, four undescribed polycyclic polyprenylated acylphloroglucinols (PPAPs) featuring an unprecedented fused hexacyclic architecture, a unique monocyclic tetra-seco-tetranor-b-PPAP, an oxidative b-PPAP and a rare norspiroindane-type m-PPAP, respectively, were isolated from the aerial parts of Hypericum uralum, along with ten known PPAPs. Their structures and absolute configurations were elucidated by extensive spectroscopic techniques (MS, NMR, [α]D, CD), conceivable biogenetic pathways and time-dependent density functional theory-based electronic circular dichroism (TDDFT-ECD) calculations. Biological assays showed three b-PPAPs had moderate antioxidative damage activities, while spiroindanes exhibited moderate cytotoxic effects.
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Affiliation(s)
- Qiang-Qiang Fang
- Natural Product Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Tong-Tong Feng
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610000, China
| | - Ai-Zhu Wang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610000, China
| | - Wan-Ying He
- Natural Product Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ren-Jie Wei
- Natural Product Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qun Lu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610000, China.
| | - Chang-Heng Tan
- Natural Product Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China.
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25
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Zong JF, Zhang MM, Zhou YB, Li J, Hou AJ, Lei C. Polyprenylated acylphloroglucinol meroterpenoids with PTP1B inhibition from Hypericum forrestii. Fitoterapia 2021; 153:104959. [PMID: 34111550 DOI: 10.1016/j.fitote.2021.104959] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 10/21/2022]
Abstract
Three new polyprenylated acylphloroglucinol meroterpenoids, hyperiforins A-C (1-3), were isolated from Hypericum forrestii (Chittenden) N. Robson, together with twelve known analogues (4-15). Their structures were established by extensive physical and spectroscopic data analysis. Compounds 1, 2, 5, 7, and 13-15 showed potent inhibitory effects on protein tyrosine phosphatase 1B with IC50 values from 6.63 ± 2.40 to 14.21 ± 3.51 μM.
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Affiliation(s)
- Jian-Fa Zong
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Meng-Meng Zhang
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yu-Bo Zhou
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Jia Li
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Ai-Jun Hou
- School of Pharmacy, Fudan University, Shanghai 201203, China.
| | - Chun Lei
- School of Pharmacy, Fudan University, Shanghai 201203, China.
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26
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Kaennakam S, Sukandar ER, Juntagoot T, Siripong P, Tip-Pyang S. Four new xanthones and their cytotoxicity from the stems of Garcinia schomburgkiana. J Nat Med 2021; 75:871-876. [PMID: 33999337 DOI: 10.1007/s11418-021-01527-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/06/2021] [Indexed: 11/28/2022]
Abstract
Four new xanthones, named schomburgones C-F (1‒4), along with six known xanthones (5‒10) were isolated from the stems of Garcinia schomburgkiana. Their structures were determined by spectroscopic analysis especially 1D and 2D NMR spectroscopies. The isolated compounds were evaluated for their cytotoxicity against five human cancer cell lines. Furanoxanthones 4‒6 showed potent cytotoxicity against four cell lines (KB, HeLa S3, MCF-7 and Hep G2) with IC50 values in the range of 0.18‒9.95 µM.
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Affiliation(s)
- Sutin Kaennakam
- Department of Agro-Industrial, Food, and Environmental Technology, Faculty of Applied Science, King Mongkut's University of Technology North Bangkok (KMUTNB), Bangkok, 10800, Thailand.
| | - Edwin Risky Sukandar
- Department of Chemistry, Center of Excellence in Natural Products Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Thanawan Juntagoot
- The Demonstration School, Faculty of Education, Phetchaburi Rajabhat University, Phetchaburi, 76000, Thailand
| | - Pongpun Siripong
- Natural Products Research Section, Research Division, National Cancer Institute, Bangkok, 10400, Thailand
| | - Santi Tip-Pyang
- Department of Chemistry, Center of Excellence in Natural Products Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand.
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27
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Wang AZ, Fang QQ, Feng TT, Wei RJ, Jiang K, Lu Q, Tan CH. Acmoxanthones A-E, New Lavandulated Xanthones from Hypericum acmosepalum N. Robson. Fitoterapia 2021; 154:104923. [PMID: 33984437 DOI: 10.1016/j.fitote.2021.104923] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/03/2021] [Accepted: 05/07/2021] [Indexed: 10/21/2022]
Abstract
Acmoxanthones A-E (1-5), five new lavandulylated xanthones, were isolated from the aerial parts of Hypericum acmosepalum, together with four known xanthones. Their structures with absolute configurations were elucidated on the basis of analysis of MS, NMR and chiroptical properties. A bioassay against high glucose-induced damage on human umbilical vein endothelial cells (HUVECs) showed ananixanthone (6) and osajaxanthone (7) had potential antioxidative damage activity with EC50 values of 10.5 μg/mL and 7.6 μg/mL, respectively, while 3-hydroxy-2,4-dimethoxyxanthone (8) exhibited cytotoxic effect on the damaged cells with IC50 values of 7.1 μg/mL.
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Affiliation(s)
- Ai-Zhu Wang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610000, China; Natural Product Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Qiang-Qiang Fang
- Natural Product Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Tong-Tong Feng
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610000, China
| | - Ren-Jie Wei
- Natural Product Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Kun Jiang
- Natural Product Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Qun Lu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610000, China.
| | - Chang-Heng Tan
- Natural Product Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
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28
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Tran TH, Nguyen VT, Le HT, Nguyen HM, Tran TH, Do Thi T, Nguyen XC, Ha MT. Garcinoxanthones SV, new xanthone derivatives from the pericarps of Garcinia mangostana together with their cytotoxic and antioxidant activities. Fitoterapia 2021; 151:104880. [PMID: 33711431 DOI: 10.1016/j.fitote.2021.104880] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/05/2021] [Accepted: 03/07/2021] [Indexed: 01/28/2023]
Abstract
Xanthones (9H-xanthene-9-ones) are considered to be very promising compounds due to a variety of interesting biological and pharmacological activities. In this study, column chromatography of the methanol extract of the Garcinia mangostana L. pericarps resulted in the isolation of four new xanthones (garcinoxanthones SV, 1-4) and five known analogs including garcinone E (5), 11-hydroxy-1-isomangostin (6) mangostenone E (7), 1,3,6,7-tetrahydroxyxanthone (8), and α-mangostin (9). The structures of the new compounds were elucidated by NMR, HRESIMS, and ECD spectra. Compound 8 (1,3,6,7-tetrahydroxyxanthone) was found from the G. mangostana pericarps for the first time. All the isolated compounds (1-8) were evaluated for their 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging capacity and cytotoxicity in vitro against three human cancer cell lines including SK-LU-1, MCF7, and HT-29 cell lines. Compounds 3, 5, and 8 exhibited significant DPPH scavenging capacity with IC50 values of 68.55, 63.05, and 28.45 μM, respectively, in comparison with ascorbic acid (IC50 = 48.03 μM). Compounds 5 and 8 showed moderate cytotoxic effects against the three human cancer cell lines with IC50 value ranges of 19.86-27.38 μM.
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29
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Ferraz CG, Ribeiro PR, Mendonça R, Silveira ER, Cruz FG. Novel polyprenylated benzophenone derivatives from Clusia burle-marxii. Fitoterapia 2020; 149:104760. [PMID: 33075410 DOI: 10.1016/j.fitote.2020.104760] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 10/07/2020] [Accepted: 10/12/2020] [Indexed: 01/12/2023]
Abstract
Three new caged polyprenylated benzophenone derivatives named burlemarxiones D-F (1-3) were isolated from the hexane extract of Clusia burle-marxii trunks. Burlemarxione D (1) contains the tetracyclo[8.3.1.03,11.05,10]tetradecane core skeleton also observed for burlemarxione A, its probable immediate precursor. However, two additional rings are formed to produce an unprecedented complex-caged core skeleton. These additional rings could be formed by a radical cyclization reaction of one prenyl group at C-5 with C-1 and C-33, followed by oxidative dehydrogenation (rearomatization) or by an intramolecular [4 + 2] radical cycloaddition (Diels-Alder reaction), followed by an enolization reaction (rearomatization). Burlemarxiones E and F were isolated after methylation with diazomethane that was necessary to avoid the interconversion of the pair of β-diketones in tautomeric equilibrium. The proposed biosynthetic pathway for burlemarxiones D-F involves the condensation of either lavandulyl pyrophosphate or 2-(1-methylvinyl)-hexa-5-enyl pyrophosphate with the acylphloroglucinol derivative 6-benzoyl-5-hydroxy-5-cyclohexen-1,3-dione, followed by consecutive prenylation reactions. Therefore, Clusia burle-marxii reinforces the claim that the genus Clusia is an important source of sophisticated caged polyprenylated benzophenone derivatives.
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Affiliation(s)
- Caline G Ferraz
- Grupo de Estudos de Substâncias Naturais Orgânicas, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115 Salvador, Brazil; Metabolomics Research Group, Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115 Salvador, Brazil.
| | - Paulo R Ribeiro
- Grupo de Estudos de Substâncias Naturais Orgânicas, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115 Salvador, Brazil; Metabolomics Research Group, Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115 Salvador, Brazil
| | - Renata Mendonça
- Instituto de Química, Universidade Federal do Rio Grande do Norte, CP 1524, 59072-970 Natal, RN, Brazil
| | - Edilberto R Silveira
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, 60021-940 Fortaleza, CE, Brazil
| | - Frederico G Cruz
- Grupo de Estudos de Substâncias Naturais Orgânicas, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115 Salvador, Brazil
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30
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do Espirito Santo BLS, Santana LF, Kato Junior WH, de Araújo FDO, Bogo D, Freitas KDC, Guimarães RDCA, Hiane PA, Pott A, Filiú WFDO, Arakaki Asato M, Figueiredo PDO, Bastos PRHDO. Medicinal Potential of Garcinia Species and Their Compounds. Molecules 2020; 25:molecules25194513. [PMID: 33019745 PMCID: PMC7582350 DOI: 10.3390/molecules25194513] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/24/2020] [Accepted: 07/30/2020] [Indexed: 02/07/2023] Open
Abstract
Garcinia is a genus of Clusiaceae, distributed throughout tropical Asia, Africa, New Caledonia, Polynesia, and Brazil. Garcinia plants contain a broad range of biologically active metabolites which, in the last few decades, have received considerable attention due to the chemical compositions of their extracts, with compounds which have been shown to have beneficial effects in several diseases. Our work had the objective of reviewing the benefits of five Garcinia species (G. brasiliensis, G. gardneriana, G. pedunculata, G. cambogia, and G. mangstana). These species provide a rich natural source of bioactive compounds with relevant therapeutic properties and anti-inflammatory effects, such as for the treatment of skin disorders, wounds, pain, and infections, having demonstrated antinociceptive, antioxidant, antitumoral, antifungal, anticancer, antihistaminic, antiulcerogenic, antimicrobial, antiviral, vasodilator, hypolipidemic, hepatoprotective, nephroprotective, and cardioprotective properties. This demonstrates the relevance of the genus as a rich source of compounds with valuable therapeutic properties, with potential use in the prevention and treatment of nontransmissible chronic diseases.
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Affiliation(s)
- Bruna Larissa Spontoni do Espirito Santo
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul-UFMS, 79070-900 Campo Grande, Brazil; (B.L.S.d.E.S.); (L.F.S.); (D.B.); (R.d.C.A.G.); (P.A.H.); (P.R.H.d.O.B.)
| | - Lidiani Figueiredo Santana
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul-UFMS, 79070-900 Campo Grande, Brazil; (B.L.S.d.E.S.); (L.F.S.); (D.B.); (R.d.C.A.G.); (P.A.H.); (P.R.H.d.O.B.)
| | - Wilson Hino Kato Junior
- Graduate of Pharmaceutical Sciences, Federal University of Mato Grosso do Sul-UFMS, 79070-900 Campo Grande, Brazil;
| | - Felipe de Oliveira de Araújo
- Graduate of Electrical Engineering, Federal University of Mato Grosso do Sul-UFMS, 79070-900 Campo Grande, Brazil;
| | - Danielle Bogo
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul-UFMS, 79070-900 Campo Grande, Brazil; (B.L.S.d.E.S.); (L.F.S.); (D.B.); (R.d.C.A.G.); (P.A.H.); (P.R.H.d.O.B.)
| | - Karine de Cássia Freitas
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul-UFMS, 79070-900 Campo Grande, Brazil; (B.L.S.d.E.S.); (L.F.S.); (D.B.); (R.d.C.A.G.); (P.A.H.); (P.R.H.d.O.B.)
- Correspondence: ; Tel.: +55-67-3345-7416
| | - Rita de Cássia Avellaneda Guimarães
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul-UFMS, 79070-900 Campo Grande, Brazil; (B.L.S.d.E.S.); (L.F.S.); (D.B.); (R.d.C.A.G.); (P.A.H.); (P.R.H.d.O.B.)
| | - Priscila Aiko Hiane
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul-UFMS, 79070-900 Campo Grande, Brazil; (B.L.S.d.E.S.); (L.F.S.); (D.B.); (R.d.C.A.G.); (P.A.H.); (P.R.H.d.O.B.)
| | - Arnildo Pott
- Laboratory of Botany, Institute of Biosciences, Federal University of Mato Grosso do Sul, 79070-900 Campo Grande, Brazil;
| | - Wander Fernando de Oliveira Filiú
- Faculty of Pharmaceutical Sciences, Food and Nutrition, Federal University of Mato Grosso do Sul-UFMS, 79070-900 Campo Grande, Brazil;
| | - Marcel Arakaki Asato
- Medical School, Federal University of Mato Grosso do Sul, 79070-900 Campo Grande, Brazil;
| | - Patrícia de Oliveira Figueiredo
- Laboratory PRONABio (Bioactive Natural Products)-Chemistry Institute, Federal University of Mato Grosso do Sul-UFMS, 79074-460 Campo Grande, Brazil;
| | - Paulo Roberto Haidamus de Oliveira Bastos
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul-UFMS, 79070-900 Campo Grande, Brazil; (B.L.S.d.E.S.); (L.F.S.); (D.B.); (R.d.C.A.G.); (P.A.H.); (P.R.H.d.O.B.)
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Emade Kwene C, Tih AE, Abderamane B, Ghogomu RT. Two new phenolic glycosides from the leaves of Garcinia epunctata Stapf. ACTA ACUST UNITED AC 2020; 75:51-56. [PMID: 32053496 DOI: 10.1515/znc-2018-0217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 01/01/2020] [Indexed: 11/15/2022]
Abstract
The leaves of Garcinia epunctata Stapf have furnished two new phenolic glucosides, epunctosides A and B, along with 13 known secondary metabolites identified as lanceoloside A, betulinic acid, lupeol, stigmasterol, β-sitosterol, β-sitosterol-3-O-β-d-glucopyranoside, stigmasterol-3-O-β-d-glucopyranoside, luteolin-7-O-glucoside, quercitin-7-O-glucoside, amentoflavone, robustaflavone, 4'-O-methyl-amentoflavone and 4'-O-methyl-robustaflavone. All structures were established from chemical and spectroscopic evidence including 1D and 2D NMR data as well as by comparing the obtained spectroscopic data with literature. This is the first report of the presence of phenolic glucosides in the genus Garcinia.
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Affiliation(s)
- C Emade Kwene
- Faculty of Science, Department of Organic Chemistry, University of Yaounde I, PO Box 812, Yaounde, Cameroon
| | - Anastasie E Tih
- Faculty of Science, Department of Organic Chemistry, University of Yaounde I, PO Box 812, Yaounde, Cameroon
| | | | - Rapheal T Ghogomu
- Faculty of Science, Department of Organic Chemistry, University of Yaounde I, PO Box 812, Yaounde, Cameroon, E-mail:
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Coste C, Gérard N, Dinh CP, Bruguière A, Rouger C, Leong ST, Awang K, Richomme P, Derbré S, Charreau B. Targeting MHC Regulation Using Polycyclic Polyprenylated Acylphloroglucinols Isolated from Garcinia bancana. Biomolecules 2020; 10:biom10091266. [PMID: 32887413 PMCID: PMC7563419 DOI: 10.3390/biom10091266] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 12/15/2022] Open
Abstract
Modulation of major histocompatibility complex (MHC) expression using drugs has been proposed to control immunity. Phytochemical investigations on Garcinia species have allowed the isolation of bioactive compounds such as polycyclic polyprenylated acylphloroglucinols (PPAPs). PPAPs such as guttiferone J (1), display anti-inflammatory and immunoregulatory activities while garcinol (4) is a histone acetyltransferases (HAT) p300 inhibitor. This study reports on the isolation, identification and biological characterization of two other PPAPs, i.e., xanthochymol (2) and guttiferone F (3) from Garcinia bancana, sharing structural analogy with guttiferone J (1) and garcinol (4). We show that PPAPs 1-4 efficiently downregulated the expression of several MHC molecules (HLA-class I, -class II, MICA/B and HLA-E) at the surface of human primary endothelial cells upon inflammation. Mechanistically, PPAPs 1-4 reduce MHC proteins by decreasing the expression and phosphorylation of the transcription factor STAT1 involved in MHC upregulation mediated by IFN-γ. Loss of STAT1 activity results from inhibition of HAT CBP/p300 activity reflected by a hypoacetylation state. The binding interactions to p300 were confirmed through molecular docking. Loss of STAT1 impairs the expression of CIITA and GATA2 but also TAP1 and Tapasin required for peptide loading and transport of MHC. Overall, we identified new PPAPs issued from Garcinia bancana with potential immunoregulatory properties.
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Affiliation(s)
- Chloé Coste
- Université de Nantes, CHU Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, F-44000 Nantes, France; (C.C.); (N.G.)
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, CEDEX 01, 49045 Angers, France; (C.P.D.); (A.B.); (C.R.); (P.R.)
| | - Nathalie Gérard
- Université de Nantes, CHU Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, F-44000 Nantes, France; (C.C.); (N.G.)
| | - Chau Phi Dinh
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, CEDEX 01, 49045 Angers, France; (C.P.D.); (A.B.); (C.R.); (P.R.)
| | - Antoine Bruguière
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, CEDEX 01, 49045 Angers, France; (C.P.D.); (A.B.); (C.R.); (P.R.)
| | - Caroline Rouger
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, CEDEX 01, 49045 Angers, France; (C.P.D.); (A.B.); (C.R.); (P.R.)
| | - Sow Tein Leong
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia; (S.T.L.); (K.A.)
| | - Khalijah Awang
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia; (S.T.L.); (K.A.)
| | - Pascal Richomme
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, CEDEX 01, 49045 Angers, France; (C.P.D.); (A.B.); (C.R.); (P.R.)
| | - Séverine Derbré
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, CEDEX 01, 49045 Angers, France; (C.P.D.); (A.B.); (C.R.); (P.R.)
- Correspondence: (S.D.); (B.C.); Tel.: +33-249-180-440 (S.D.); +33-240-087-416 (B.C.); Fax: +33-240-087-411 (B.C.)
| | - Béatrice Charreau
- Université de Nantes, CHU Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, F-44000 Nantes, France; (C.C.); (N.G.)
- Correspondence: (S.D.); (B.C.); Tel.: +33-249-180-440 (S.D.); +33-240-087-416 (B.C.); Fax: +33-240-087-411 (B.C.)
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Phang Y, Wang X, Lu Y, Fu W, Zheng C, Xu H. Bicyclic polyprenylated acylphloroglucinols and their derivatives: structural modification, structure-activity relationship, biological activity and mechanism of action. Eur J Med Chem 2020; 205:112646. [PMID: 32791400 DOI: 10.1016/j.ejmech.2020.112646] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/02/2020] [Accepted: 07/04/2020] [Indexed: 12/22/2022]
Abstract
Bicyclic polyprenylated acylphloroglucinols (BPAPs), the principal bioactive benzophenone products isolated from plants of genera Garcinia and Hypericum, have attracted noticeable attention from the synthetic and biological communities due to their fascinating chemical structures and promising biological activities. However, the potential drug interaction, undesired physiochemical properties and toxicity have limited their potential use and development. In the last decade, pharmaceutical research on the structural modifications, structure-activity relationships (SARs) and mechanisms of action of BPAPs has been greatly developed to overcome the challenges. A comprehensive review of these scientific literature is extremely needed to give an overview of the rapidly emerging area and facilitate research related to BPAPs. This review, containing over 226 references, covers the progress made in the chemical synthesis-based structure modifications, SARs and the mechanism of action of BPAPs in vivo and vitro. The most relevant articles will focus on the discovery of lead compounds via synthetic modifications and the important BPAPs for which the direct targets have been deciphered. From this review, several key points of the SARs and mode of actions of this novel class of compounds have been summarized. The perspective and future direction of the research on BPAPs are concluded. This review would be helpful to get a better grasp of medicinal research of BPAPs and become a compelling guide for chemists dedicated to the synthesis of these compounds.
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Silva LG, Gomes KS, Costa-Silva TA, Romanelli MM, Tempone AG, Sartorelli P, Lago JHG. Calanolides E1 and E2, two related coumarins from Calophyllum brasiliense Cambess. ( Clusiaceae), displayed in vitro activity against amastigote forms of Trypanosoma cruzi and Leishmania infantum. Nat Prod Res 2020; 35:5373-5377. [PMID: 32441133 DOI: 10.1080/14786419.2020.1765347] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the present work, the MeOH extract from stem barks of Calophyllum brasiliense Cambess. (Clusiaceae) displayed activity against amastigote forms of Trypanosoma cruzi and Leishmania infantum and was subjected to a bioactivity-guided fractionation to give two related coumarins - calanolides E1 (1) and E2 (2). Compounds 1 and 2 were actives to T. cruzi with EC50 values of 12.1 and 8.2 μM, respectively. When tested against L. infantum, the EC50 values were 37.1 and 29.1 μM, respectively. Compound 2, corresponding to anti isomer, showed the best selectivity index (SI) with values >24.4 to T. cruzi and >6.9 to L. infantum in comparison to the syn isomer 1. Furthermore, using an in silico multi-parametric prediction, both compounds did not contain any PAINS sub-structures. Therefore, these data suggest that coumarins 1 and 2 may contribute as scaffolds for the design of novel drug candidates for leishmaniasis and Chagas disease.
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Affiliation(s)
- Luciana Grus Silva
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, São Paulo, Brazil
| | - Kaio S Gomes
- Centre of Human and Natural Sciences, Federal University of ABC, Santo André, Brazil, São Paulo, Brazil
| | - Thais A Costa-Silva
- Centre of Human and Natural Sciences, Federal University of ABC, Santo André, Brazil, São Paulo, Brazil
| | - Maiara M Romanelli
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, Brazil
| | - Andre G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, Brazil
| | - Patricia Sartorelli
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, São Paulo, Brazil
| | - João Henrique G Lago
- Centre of Human and Natural Sciences, Federal University of ABC, Santo André, Brazil, São Paulo, Brazil
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Ferraz CG, Ribeiro PR, Marques ÉJ, Mendonça R, Guedes MLS, Silveira ER, El-Bachá R, Cruz FG. Polyprenylated benzophenone derivatives with a novel tetracyclo[8.3.1.0 3,11.0 5,10]tetradecane core skeleton from Clusia burle-marxii exhibited cytotoxicity against GL-15 glioblastoma-derived human cell line. Fitoterapia 2019; 138:104346. [PMID: 31465815 DOI: 10.1016/j.fitote.2019.104346] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 07/02/2019] [Revised: 08/21/2019] [Accepted: 08/25/2019] [Indexed: 11/19/2022]
Abstract
Three new polyprenylated benzophenone derivatives (1-3) were identified in the hexane extract of Clusia burle-marxii trunks, through the isolation and structural elucidation of their methyl derivatives, along with two known polyprenylated benzophenone derivatives sampsonine N (4) and obdeltifolione C (5). Burlemarxiones A (1) and B (2) show an unprecedent tetracyclo[8.3.1.03,11.05,10]tetradecane core skeleton. These compounds are a pair of β-diketones in tautomeric equilibrium, whereas isonemorosonol (3) is the respective β-diketone pair in tautomeric equilibrium with nemorosonol. Burlemarxione A methyl derivative (1a) and sampsonine N exhibited strong in vitro cytotoxic activity against GL-15 glioblastoma-derived human cell line.
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Affiliation(s)
- Caline G Ferraz
- Grupo de Estudos de Substâncias Naturais Orgânicas (GESNAT), Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115 Salvador, Brazil; Centro de Ciências Exatas e Tecnológicas, CETEC, Universidade Federal do Recôncavo da Bahia, Rua Rui Barbosa, no710, 44.380-000 Cruz das Almas, Brazil; Metabolomics Research Group, Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115 Salvador, Brazil.
| | - Paulo R Ribeiro
- Grupo de Estudos de Substâncias Naturais Orgânicas (GESNAT), Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115 Salvador, Brazil; Metabolomics Research Group, Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115 Salvador, Brazil
| | - Édson J Marques
- Grupo de Estudos de Substâncias Naturais Orgânicas (GESNAT), Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115 Salvador, Brazil
| | - Renata Mendonça
- Instituto de Química, Universidade Federal do Rio Grande do Norte, CP 1524, 59072-970 Natal, RN, Brazil
| | - Maria Lenise S Guedes
- Instituto de Biologia, Universidade Federal da Bahia, 40.170-290 Salvador, BA, Brazil
| | - Edilberto R Silveira
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, 60021-940 Fortaleza, CE, Brazil
| | - Ramon El-Bachá
- Laboratório de Neuroquímica e Biologia Celular, Departamento de Bioquímica e Biofísica, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - Frederico G Cruz
- Grupo de Estudos de Substâncias Naturais Orgânicas (GESNAT), Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115 Salvador, Brazil
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Ibrahim SRM, Mohamed GA, Elfaky MA, Al Haidari RA, Zayed MF, El-Kholy AAE, Khedr AIM. Garcixanthone A, a new cytotoxic xanthone from the pericarps of Garcinia mangostana. J Asian Nat Prod Res 2019; 21:291-297. [PMID: 29307236 DOI: 10.1080/10286020.2017.1423058] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 12/28/2017] [Indexed: 05/21/2023]
Abstract
A new prenylated xanthone, garcixanthone A (5), together with eight known compounds, mangostanaxanthones I (1) and II (2), garcinone E (3), β-mangostin (4), 8-hydroxycudraxanthone G (6), garcinone C (7), cudraxanthone G (8), and (-)-epicatechin (9) were isolated from the EtOAc-soluble fraction of the air-dried pericarps of Garcinia mangostana (family Clusiaceae). Their structures were verified on the basis of spectroscopic data interpretation as well as comparison with the literature. The cytotoxic and antimicrobial activities of the new compound were assessed using sulforhodamine B (SRB) and agar disk diffusion assays, respectively. Compound 5 showed significant cytotoxic potential against epithelial lung carcinoma (A549) and breast carcinoma (MCF7) cell lines with IC50s 3.0 and 4.2 μM, respectively, compared to doxorubicin (0.74 and 0.41 μM, respectively).
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Affiliation(s)
- Sabrin Ragab Mohamed Ibrahim
- a Department of Pharmacognosy and Pharmaceutical Chemistry, College of Pharmacy , Taibah University , Al Madinah Al Munawwarah 30078 , Saudi Arabia
- b Department of Pharmacognosy, Faculty of Pharmacy , Assiut University , Assiut 71526 , Egypt
| | - Gamal Abdallah Mohamed
- c Department of Natural Products and Alternative Medicine, Faculty of Pharmacy , King Abdulaziz University , Jeddah 21589 , Saudi Arabia
- d Department of Pharmacognosy, Faculty of Pharmacy , Al-Azhar University , Assiut 71524 , Egypt
| | - Mahmoud Abdelkhalek Elfaky
- c Department of Natural Products and Alternative Medicine, Faculty of Pharmacy , King Abdulaziz University , Jeddah 21589 , Saudi Arabia
| | - Rwaida Adel Al Haidari
- a Department of Pharmacognosy and Pharmaceutical Chemistry, College of Pharmacy , Taibah University , Al Madinah Al Munawwarah 30078 , Saudi Arabia
| | - Mohamed Fathalla Zayed
- a Department of Pharmacognosy and Pharmaceutical Chemistry, College of Pharmacy , Taibah University , Al Madinah Al Munawwarah 30078 , Saudi Arabia
- e Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Al-Azhar University , Cairo , Egypt
| | - Amal Abd-Elmoneim El-Kholy
- f Department of Clinical and Hospital Pharmacy, College of Pharmacy , Taibah University , Al Madinah Al Munawwarah 30078 , Saudi Arabia
- g Department of Clinical Pharmacy, Faculty of Pharmacy , Ain-Shams University , Cairo 11566 , Egypt
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37
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Bruguière A, Derbré S, Coste C, Le Bot M, Siegler B, Leong ST, Sulaiman SN, Awang K, Richomme P. 13C-NMR dereplication of Garcinia extracts: Predicted chemical shifts as reliable databases. Fitoterapia 2018; 131:59-64. [PMID: 30321650 DOI: 10.1016/j.fitote.2018.10.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 06/22/2018] [Revised: 09/25/2018] [Accepted: 10/01/2018] [Indexed: 12/18/2022]
Abstract
Usually isolated from Garcinia (Clusiaceae) or Hypericum (Hypericaceae) species, some Polycyclic Polyprenylated AcylPhloroglucinols (PPAPs) have been recently reported as potential research tools for immunotherapy. Aiming at exploring the chemodiversity of PPAPs amongst Garcinia genus, a dereplication process suitable for such natural compounds has been developed. Although less sensitive than mass spectrometry, NMR spectroscopy is perfectly reproducible and allows stereoisomers distinction, justifying the development of 13C-NMR strategies. Dereplication requires the use of databases (DBs). To define if predicted DBs were accurate enough as dereplication tools, experimental and predicted δC of natural products usually isolated from Clusiaceae were compared. The ACD/Labs commercial software allowed to predict 73% of δC in a 1.25 ppm range around the experimental values. Consequently, with these parameters, the major PPAPs from a Garcinia bancana extract were successfully identified using a predicted DB.
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Affiliation(s)
| | | | - Chloé Coste
- SONAS SFR QUASAV, University of Angers, France
| | | | | | - Sow Tein Leong
- Department of Chemistry, Faculty of sciences, University of Malaya, Malaysia
| | | | - Khalijah Awang
- Department of Chemistry, Faculty of sciences, University of Malaya, Malaysia
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Kaennakam S, Mudsing K, Rassamee K, Siripong P, Tip-Pyang S. Two new xanthones and cytotoxicity from the bark of Garcinia schomburgkiana. J Nat Med 2019; 73:257-61. [PMID: 30171417 DOI: 10.1007/s11418-018-1240-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 08/17/2018] [Indexed: 11/05/2022]
Abstract
Two new xanthone derivatives, named schomburgones A (1) and B (2), along with eight known compounds, including xanthones (3–8) and anthraquinones (9–10) were isolated from the bark of Garcinia schomburgkiana. Their structures were determined by spectroscopic analysis especially 1D and 2D NMR spectroscopies. All isolated compounds were evaluated for their cytotoxicity against five cancer cell lines (KB, HeLa S-3, HT-29, MCF-7 and HepG-2). Compounds 3–6 and 8 showed good cytotoxicity against all the five cancer cell lines with IC50 values in the range of 1.45–9.46 µM.
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Wang ZQ, Li XY, Hu DB, Long CL. Cytotoxic garcimultiflorones K-Q, lavandulyl benzophenones from Garcinia multiflora branches. Phytochemistry 2018; 152:82-90. [PMID: 29738915 DOI: 10.1016/j.phytochem.2018.04.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/30/2018] [Accepted: 04/30/2018] [Indexed: 06/08/2023]
Abstract
Seven undescribed lavandulyl benzophenones garcimultiflorones K-Q, and fourteen known compounds were isolated from the CHCl3 soluble fraction of 95% EtOH extract of Garcinia multiflora branches. Their structures and absolute configurations were determined by spectroscopic techniques including NMR spectroscopy, MS analysis, and ECD calculations. Seven isolated compounds expect for garcimultiflorone L and garcimultiflorone O exhibited cytotoxic activities in vitro against five cancer cell lines (HL-60, A549, SMMC-7721, MCF-7, and SW480). It is worth mentioning that garcimultiflorone Q exhibited most significant cytotoxicities against five cancer cell lines with IC50 values ranging from 3.07-12.56 μM.
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Affiliation(s)
- Zhao-Quan Wang
- College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China
| | - Xing-Yu Li
- College of Science, Yunnan Agriculture University, Kunming, 650201, China
| | - Dong-Bao Hu
- College of Resources and Environment, Yuxi Normal University, Yuxi, 653100, China
| | - Chun-Lin Long
- College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China; Key Laboratory of Ethnomedicine (Minzu University of China), Ministry of Education, Beijing, 100081, China.
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40
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Pailee P, Kuhakarn C, Sangsuwan C, Hongthong S, Piyachaturawat P, Suksen K, Jariyawat S, Akkarawongsapat R, Limthongkul J, Napaswad C, Kongsaeree P, Prabpai S, Jaipetch T, Pohmakotr M, Tuchinda P, Reutrakul V. Anti-HIV and cytotoxic biphenyls, benzophenones and xanthones from stems, leaves and twigs of Garcinia speciosa. Phytochemistry 2018; 147:68-79. [PMID: 29304383 DOI: 10.1016/j.phytochem.2017.12.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 12/18/2017] [Accepted: 12/19/2017] [Indexed: 06/07/2023]
Abstract
Eleven previously undescribed compounds, including four benzophenones (garciosones A-D), four xanthones (garciosones E-H) and three biphenyls (garciosines A-C), along with eighteen known compounds were isolated from the stems, leaves and twigs of Garcinia speciosa Wall. (Clusiaceae). Their structures were established by extensive spectroscopic analysis. For garciosines A-C, the structures were confirmed by single crystal X-ray diffraction analysis. Most of the isolated compounds were evaluated for their cytotoxic activity and anti-HIV-1 activity using the syncytium inhibition assay and HIV-1 reverse transcriptase (RT) assay. The known compounds, 4,6,3',4'-tetrahydroxy-2-methoxybenzophenone and macluraxanthone, displayed significant cytotoxic activity with the ED50 in the range of 1.85-11.76 μM. 1,5-Dihydroxyxanthone exhibited the most potent anti-HIV activity against syncytium formation with EC50 < 17.13 μM (SI > 25.28) and 2-(3,3-dimethylallyl)-1,3,7-trihydroxyxanthone was the most active compound in the HIV-1 reverse transcriptase assay with IC50 value of 58.24 μM. Structure-activity relationship of some isolated compounds were also discussed.
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Affiliation(s)
- Phanruethai Pailee
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Chutima Kuhakarn
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Chanyapat Sangsuwan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Sakchai Hongthong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Pawinee Piyachaturawat
- Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Kanoknetr Suksen
- Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Surawat Jariyawat
- Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Radeekorn Akkarawongsapat
- Department of Microbiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Jitra Limthongkul
- Department of Microbiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Chanita Napaswad
- Department of Microbiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Palangpon Kongsaeree
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Samran Prabpai
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Thaworn Jaipetch
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Manat Pohmakotr
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Patoomratana Tuchinda
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Vichai Reutrakul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
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Chaturonrutsamee S, Kuhakarn C, Surawatanawong P, Prabpai S, Kongsaeree P, Jaipetch T, Piyachaturawat P, Jariyawat S, Akkarawongsapat R, Suksen K, Limthongkul J, Napaswad C, Nuntasaen N, Reutrakul V. Polycyclic polyprenylated acylphloroglucinols and biphenyl derivatives from the roots of Garcinia nuntasaenii Ngerns. & Suddee. Phytochemistry 2018; 146:63-74. [PMID: 29247893 DOI: 10.1016/j.phytochem.2017.12.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 11/30/2017] [Accepted: 12/04/2017] [Indexed: 06/07/2023]
Abstract
Seven previously undescribed compounds, including three polycyclic polyprenylated acylphloroglucinols (garcinuntins A-C), three biphenyl derivatives (garcinuntabiphenyls A-C) and a lanostane triterpene (garcinuntine), along with thirteen known compounds were isolated from the root of Garcinia nuntasaenii Ngerns. & Suddee. Their structures were elucidated on the basis of spectroscopic techniques. For garcinuntins A-C, the absolute configurations were confirmed by the combination of single X-ray crystallography and ECD calculations. Anti-HIV activity using anti-HIV-1 reverse transcriptase and syncytium inhibition assays, and cytotoxic activity against a panel of cultured mammalian cancer cell lines of isolated compounds were investigated.
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Affiliation(s)
- Suppisak Chaturonrutsamee
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand; Research and Development Department, International Laboratories Corp., Ltd., Bang Phli, Samut Prakan 10540, Thailand
| | - Chutima Kuhakarn
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Panida Surawatanawong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Samran Prabpai
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Palangpon Kongsaeree
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Thaworn Jaipetch
- Mahidol University, Center of Excellence for Innovation in Chemistry (PERCH-CIC), Kanchanaburi Campus, Saiyok, Kanchanaburi 71150, Thailand
| | - Pawinee Piyachaturawat
- Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Surawat Jariyawat
- Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Radeekorn Akkarawongsapat
- Department of Microbiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Kanoknetr Suksen
- Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Jitra Limthongkul
- Department of Microbiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Chanita Napaswad
- Department of Microbiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Narong Nuntasaen
- The Forest Herbarium, Department of National Parks, Wildlife and Plant Conservation, Ministry of Natural Resources and Environment, Bangkok 10900, Thailand
| | - Vichai Reutrakul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
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Meechai I, Phupong W, Chunglok W, Meepowpan P. Dihydroosajaxanthone: A New Natural Xanthone from the Branches of Garcinia Schomburgkiana Pierre. Iran J Pharm Res 2018; 17:1347-1352. [PMID: 30568693 PMCID: PMC6269574] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/29/2022]
Abstract
Garcinia schomburgkiana, locally known in Thailand as an edible fruit "Ma-dan", is a plant species of the Clusiaceae family which has been reported as sources of a variety of compounds with biological activities. In the phytochemical studies of Ma-dan, four xanthones were, for the very first time, isolated from the branch acetone extract of G. schomburgkiana. Their structures were determined through the analysis of spectroscopic data (1H, 13C-NMR, IR and MS) and the comparison with those previously reported. Dihydroosajaxanthone (1), an original synthetic xanthone, is reported herein for the first time as a naturally occurring xanthone, together with three known xanthones: xanthochymone A (2), 1,3,7-trihydroxy-2-(3-hydroxy-3-methylbutyl) xanthone (3) and 1,3,5,6-tetrahydroxyxanthone (4). These compounds, especially dihydroosajaxanthone (1), might be considered as chemotaxonomic markers of the Garcinia genus.
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Affiliation(s)
- Imron Meechai
- Department of Chemistry, School of Science, Walailak University, Nakhon Si Thammarat, 80161, Thailand.
| | - Worrapong Phupong
- Department of Chemistry, School of Science, Walailak University, Nakhon Si Thammarat, 80161, Thailand. ,Corresponding author: E-mail:
| | - Warangkana Chunglok
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, 80161 Thailand.
| | - Puttinan Meepowpan
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand.
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Jo S, Kim HW, Kim YK, Sohn JY, Cheon SH, Kim KJ. The complete plastome of tropical fruit Garcinia mangostana ( Clusiaceae). Mitochondrial DNA B Resour 2017; 2:722-724. [PMID: 33490474 PMCID: PMC7800348 DOI: 10.1080/23802359.2017.1390406] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 09/13/2017] [Accepted: 10/06/2017] [Indexed: 01/12/2023] Open
Abstract
The complete plastome sequence of Garcinia mangostana L. (Clusiaceae) is completed in this study (NCBI acc. no. KX822787). This is a first complete plastome sequence from the Clusiaceae. The complete plastome size is 158,179 bp in length and consists of a large single copy of 86,458 bp and a small single copy of 17,703 bp, separated by two inverted repeats of 27,009 bp. The G. mangostana plastome shows four minor structural modifications including infA gene loss, rpl32 gene loss, ycf3 gene intron loss and a 363 bp inversion between trnV-UAC and atpE gene. The plastome contains 111 genes, of which 77 are protein-coding genes, 30 are tRNA genes and four are rRNA genes. The average A-T content of the plastome is 63.9%. A total of 110 simple sequence loci are identified from the genome. Phylogenetic analysis reveals that G. mangostana is a sister group of Erythroxylum novogranatense (Erythroxylaceae) with 78% bootstrap support.
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Affiliation(s)
- Sangjin Jo
- Division of Life Sciences, Korea University, Seoul, Korea
| | - Hoe-Won Kim
- Division of Life Sciences, Korea University, Seoul, Korea
| | - Young-Kee Kim
- Division of Life Sciences, Korea University, Seoul, Korea
| | - Jung-Yeon Sohn
- Division of Life Sciences, Korea University, Seoul, Korea
| | - Se-Hwan Cheon
- Division of Life Sciences, Korea University, Seoul, Korea
| | - Ki-Joong Kim
- Division of Life Sciences, Korea University, Seoul, Korea
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Youn UJ, Sripisut T, Miklossy G, Turkson J, Laphookhieo S, Chang LC. Bioactive polyprenylated benzophenone derivatives from the fruits extracts of Garcinia xanthochymus. Bioorg Med Chem Lett 2017; 27:3760-3765. [PMID: 28729053 DOI: 10.1016/j.bmcl.2017.06.073] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 06/26/2017] [Accepted: 06/26/2017] [Indexed: 10/19/2022]
Abstract
Two new polycyclic prenylated xanthones (1 and 2) and a new phenylpropanoid glycoside (3), along with seven known compounds (4-10) were isolated from the fruits of Garcinia xanthochymus. The structures were elucidated by 1D- and 2D-NMR, and HRMS experiments. The isolates were evaluated for their inhibitory effects against the viability of U251MG glioblastoma and MDA-MB-231 breast cancer cells that harbor an aberrantly active signal transducer and exhibit activation of transcription 3 (STAT3), and compared to normal NIH3T3 mouse fibroblasts. Among the isolates, compounds 1, 2, 5, and 6-9 inhibited the viability of glioma cancer cells with IC50 values in the range of 1.6-6.5μM. Furthermore, treatment of U251MG with 6 and 7 inhibited intracellular STAT3 tyrosine phosphorylation and glioma cell migration in vitro, respectively.
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Affiliation(s)
- Ui Joung Youn
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720, United States; Division of Life Sciences, Korea Polar Research Institute, KIOST, Incheon 21990, Republic of Korea
| | - Tawanun Sripisut
- Natural Products Research Laboratory, School of Science, Mae Fah Luang University, Tasud, Muang, Chiang Rai 57100, Thailand
| | - Gabriella Miklossy
- Natural Products and Experimental Therapeutics Program, University of Hawai'i Cancer Center, Honolulu, HI 96813, United States
| | - James Turkson
- Natural Products and Experimental Therapeutics Program, University of Hawai'i Cancer Center, Honolulu, HI 96813, United States
| | - Surat Laphookhieo
- Natural Products Research Laboratory, School of Science, Mae Fah Luang University, Tasud, Muang, Chiang Rai 57100, Thailand
| | - Leng Chee Chang
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720, United States.
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Ghosh A, Banik S, Amin MN, Ahmed J. Evaluation of antinociceptive, antihyperglycemic, and membrane stabilizing activities of Garcinia lancifolia Roxb. J Tradit Complement Med 2017; 8:303-307. [PMID: 29736386 PMCID: PMC5934706 DOI: 10.1016/j.jtcme.2017.04.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 02/27/2017] [Revised: 04/25/2017] [Accepted: 04/27/2017] [Indexed: 10/27/2022] Open
Abstract
This study was undertaken to examine the antinociceptive, antihyperglycemic, and membrane stabilizing activity with phytochemical screening of methanolic extract of Garcinia lanceifolia whole plant. The extracts were subjected to in-vivo antinociceptive, antihyperglycemic activity in laboratory animals and in-vitro membrane stabilizing activity. In peripheral antinociceptive activity, G. lanceifolia (400 and 200 mg/kg) exhibited significant (P < 0.001) inhibition of writhing with 59.15% and 49.30% respectively comparable to standard Diclofenac (54.92% inhibition). In central antinociceptive activity, the extract (400 and 200 mg/kg) exhibited significant analgesic activity having 78.31% (P < 0.05) and 89.95% (P < 0.01) elongation of reaction time respectively in 90 min after administration of sample comparable to the standard Morphine (708.99% elongation). In hypoglycemic activity, the extract (400 and 200 mg/kg) exhibit statistically significant (P < 0.001) antihyperglycemic activity compared to standard drug Glibenclamide (10 mg/kg) at different time interval. In membrane stabilizing activity assay, clearly evident that the methanolic extracts of G. lanceifolia were highly effective to prevent the lyses of erythrocytes induced by heat. The outcomes of the present study revealed that this plant possess noteworthy pharmacological activities that may be basis for further research to disclose feasible mode of action of the plant part.
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Affiliation(s)
- Antara Ghosh
- Department of Pharmacy, Noakhali Science and Technology University, Sonapur, Noakhali 3814, Bangladesh
| | - Sujan Banik
- Department of Pharmacy, Noakhali Science and Technology University, Sonapur, Noakhali 3814, Bangladesh
| | - Mohammad Nurul Amin
- Department of Pharmacy, Atish Dipankar University of Science and Technology, Bangladesh
| | - Jamiuddin Ahmed
- Department of Pharmacy, Noakhali Science and Technology University, Sonapur, Noakhali 3814, Bangladesh.,Faculty of Science, University of Brunei Darussalam, Brunei
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Brito LDC, Berenger ALR, Figueiredo MR. An overview of anticancer activity of Garcinia and Hypericum. Food Chem Toxicol 2017; 109:847-862. [PMID: 28363851 DOI: 10.1016/j.fct.2017.03.053] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [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: 01/22/2017] [Revised: 03/12/2017] [Accepted: 03/14/2017] [Indexed: 01/01/2023]
Abstract
Cancer is one of the leading causes of death worldwide (approximately 8.2 million cases/year) and, over the next two decades, a 70% increase in new cancer cases is expected. Through analysis of the available drugs between the years of 1930 and 2014, it was found that 48% were either natural products or their derivatives. This proportion increased to 66% when semi-synthetic products were included. The family Clusiaceae Juss. (Malpighiales) includes approximately 1000 species distributed throughout all tropical and temperate regions. The phytochemical profile of this family includes many chemicals with interesting pharmacological activities, including anticancer activities. This study includes an overview of the in vitro and in vivo anticancer activity of secondary metabolites from Garcinia and Hypericum and the mechanisms involved in this activity. Hypericum no longer belong to Clusiaceae family, but was considered in the past by taxonomists, due to similarities with this family. Research in the area has shown that several compounds belonging to different chemical classes exhibit activity in several tumor cell lines in different experimental models. This review shows the significant antineoplasic activity of these compounds, in particular of these two genera and validates the importance of natural products in the search for anticancer drugs.
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Affiliation(s)
- Lavínia de C Brito
- Central Analítica Fernanda Coutinho, Instituto de Química, UERJ, Rio de Janeiro, RJ, Brazil; Laboratório de Produtos Naturais 3 (PN3), FIOCRUZ, Rio de Janeiro, RJ, Brazil.
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Hu G, Zhang ZH, Yang P, Zhang QW, Yuan CA. Development of microsatellite markers in Garcinia paucinervis ( Clusiaceae), an endangered species of karst habitats. Appl Plant Sci 2017; 5:apps1600131. [PMID: 28090413 PMCID: PMC5231918 DOI: 10.3732/apps.1600131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 11/27/2016] [Indexed: 06/06/2023]
Abstract
PREMISE OF THE STUDY Microsatellite markers were developed for Garcinia paucinervis (Clusiaceae), an endangered and endemic tree species of karst habitats, to analyze its genetic diversity and genetic structure. METHODS AND RESULTS Using shotgun sequencing on an Illumina MiSeq platform, a total of 22 microsatellite primer sets were characterized, of which 17 were identified as polymorphic. For these polymorphic loci, the total number of alleles per locus ranged from two to 12 across 54 individuals from three populations. The observed and expected heterozygosities ranged from 0.000 to 1.000 and from 0.000 to 0.850, respectively. No pair of loci showed significant linkage disequilibrium. Three loci in one population deviated significantly from Hardy-Weinberg equilibrium (P < 0.05). Seven loci (JSL3, JSL5, JSL22, JSL29, JSL32, JSL39, and JSL43) were successfully amplified in G. bracteata. CONCLUSIONS These markers will be useful in studies on genetic diversity and population structure of G. paucinervis.
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Affiliation(s)
- Gang Hu
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization of Ministry of Education, Guangxi Teachers Education University, Nanning 530001, People’s Republic of China
- Guangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation, Guangxi Teachers Education University, Nanning 530001, People’s Republic of China
- School of Environment and Life Sciences, Guangxi Teachers Education University, Nanning 530001, People’s Republic of China
| | - Zhong-Hua Zhang
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization of Ministry of Education, Guangxi Teachers Education University, Nanning 530001, People’s Republic of China
- Guangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation, Guangxi Teachers Education University, Nanning 530001, People’s Republic of China
- School of Environment and Life Sciences, Guangxi Teachers Education University, Nanning 530001, People’s Republic of China
| | - Ping Yang
- Guangxi Key Laboratory of Traditional Chinese Medicine Quality Standards, Guangxi Institute of Chinese Medicine and Pharmaceutical Science, Nanning 530022, People’s Republic of China
| | - Qi-Wei Zhang
- Guangxi Key Laboratory of Traditional Chinese Medicine Quality Standards, Guangxi Institute of Chinese Medicine and Pharmaceutical Science, Nanning 530022, People’s Republic of China
| | - Chang-An Yuan
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization of Ministry of Education, Guangxi Teachers Education University, Nanning 530001, People’s Republic of China
- Guangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation, Guangxi Teachers Education University, Nanning 530001, People’s Republic of China
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Liu Q, Li D, Wang A, Dong Z, Yin S, Zhang Q, Ye Y, Li L, Lin L. Nitric oxide inhibitory xanthones from the pericarps of Garcinia mangostana. Phytochemistry 2016; 131:115-123. [PMID: 27561254 DOI: 10.1016/j.phytochem.2016.08.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 07/21/2016] [Accepted: 08/15/2016] [Indexed: 06/06/2023]
Abstract
Mangosteen (Garcinia mangostana, Clusiaceae) is called "queen of fruit" in Southeast Asia. In the current study, three dimeric xanthones, garcinoxanthones A-C, and four monomeric xanthones, garcinoxanthones D-G, together with 18 known xanthones, were isolated from the pericarps of G. mangostana, collected in Thailand. The structures of garcinoxanthones A-G were elucidated by analysis of their 1D and 2D NMR and other spectroscopic data, and their absolute configurations were determined by the CD spectra. All seven compounds were tested for nitric oxide (NO) inhibitory activity on lipopolysaccharide (LPS)-stimulated RAW264.7 cells. Garcinoxanthones B and C significantly inhibited NO production with IC50 values of 11.3 ± 1.7 and 18.0 ± 1.8 μM, respectively, which were comparable with the positive control indomethacin (IC50 3.9 ± 0.3 μM). Moreover, garcinoxanthone B suppressed inducible NO synthase expression in a dose-dependent manner. These results reveal the presence of rare dimeric xanthones in G. mangostana and their NO inhibitory effect on LPS-stimulated murine macrophage cells.
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Affiliation(s)
- Qianyu Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Dan Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Anqi Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Zhen Dong
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Sheng Yin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Qingwen Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Yang Ye
- Department of Natural Products Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Liangchun Li
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China.
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
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Olsson S, Seoane-Zonjic P, Bautista R, Claros MG, González-Martínez SC, Scotti I, Scotti-Saintagne C, Hardy OJ, Heuertz M. Development of genomic tools in a widespread tropical tree, Symphonia globulifera L.f.: a new low-coverage draft genome, SNP and SSR markers. Mol Ecol Resour 2016; 17:614-630. [PMID: 27718316 DOI: 10.1111/1755-0998.12605] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 09/30/2016] [Accepted: 10/04/2016] [Indexed: 01/08/2023]
Abstract
Population genetic studies in tropical plants are often challenging because of limited information on taxonomy, phylogenetic relationships and distribution ranges, scarce genomic information and logistic challenges in sampling. We describe a strategy to develop robust and widely applicable genetic markers based on a modest development of genomic resources in the ancient tropical tree species Symphonia globulifera L.f. (Clusiaceae), a keystone species in African and Neotropical rainforests. We provide the first low-coverage (11X) fragmented draft genome sequenced on an individual from Cameroon, covering 1.027 Gbp or 67.5% of the estimated genome size. Annotation of 565 scaffolds (7.57 Mbp) resulted in the prediction of 1046 putative genes (231 of them containing a complete open reading frame) and 1523 exact simple sequence repeats (SSRs, microsatellites). Aligning a published transcriptome of a French Guiana population against this draft genome produced 923 high-quality single nucleotide polymorphisms. We also preselected genic SSRs in silico that were conserved and polymorphic across a wide geographical range, thus reducing marker development tests on rare DNA samples. Of 23 SSRs tested, 19 amplified and 18 were successfully genotyped in four S. globulifera populations from South America (Brazil and French Guiana) and Africa (Cameroon and São Tomé island, FST = 0.34). Most loci showed only population-specific deviations from Hardy-Weinberg proportions, pointing to local population effects (e.g. null alleles). The described genomic resources are valuable for evolutionary studies in Symphonia and for comparative studies in plants. The methods are especially interesting for widespread tropical or endangered taxa with limited DNA availability.
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Affiliation(s)
- Sanna Olsson
- Department of Forest Ecology and Genetics, INIA Forest Research Centre (INIA-CIFOR), Carretera de A Coruña km 7.5, E-28040, Madrid, Spain
| | - Pedro Seoane-Zonjic
- Departamento de Biología Molecular y Bioquímica, and Plataforma Andaluza de Bioinformática, Universidad de Málaga, calle Severo Ochoa 34, E-29590, Campanillas, Málaga, Spain
| | - Rocío Bautista
- Departamento de Biología Molecular y Bioquímica, and Plataforma Andaluza de Bioinformática, Universidad de Málaga, calle Severo Ochoa 34, E-29590, Campanillas, Málaga, Spain
| | - M Gonzalo Claros
- Departamento de Biología Molecular y Bioquímica, and Plataforma Andaluza de Bioinformática, Universidad de Málaga, calle Severo Ochoa 34, E-29590, Campanillas, Málaga, Spain
| | - Santiago C González-Martínez
- Department of Forest Ecology and Genetics, INIA Forest Research Centre (INIA-CIFOR), Carretera de A Coruña km 7.5, E-28040, Madrid, Spain.,UMR1202 BioGeCo, INRA, Univ. Bordeaux, 69 route d'Arcachon, F-33610, Cestas, France
| | - Ivan Scotti
- INRA, UR629 URFM, Ecologie des Forêts Méditerranéennes, Site Agroparc, Domaine Saint Paul, F-84914, Avignon Cedex 9, France
| | - Caroline Scotti-Saintagne
- INRA, UR629 URFM, Ecologie des Forêts Méditerranéennes, Site Agroparc, Domaine Saint Paul, F-84914, Avignon Cedex 9, France
| | - Olivier J Hardy
- Faculté des Sciences, Evolutionary Biology and Ecology, Université Libre de Bruxelles, Av. F.D. Roosevelt 50, CP 160/12, B-1050, Brussels, Belgium
| | - Myriam Heuertz
- Department of Forest Ecology and Genetics, INIA Forest Research Centre (INIA-CIFOR), Carretera de A Coruña km 7.5, E-28040, Madrid, Spain.,UMR1202 BioGeCo, INRA, Univ. Bordeaux, 69 route d'Arcachon, F-33610, Cestas, France.,Faculté des Sciences, Evolutionary Biology and Ecology, Université Libre de Bruxelles, Av. F.D. Roosevelt 50, CP 160/12, B-1050, Brussels, Belgium
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50
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Ruhfel BR, Bove CP, Philbrick CT, Davis CC. Dispersal largely explains the Gondwanan distribution of the ancient tropical clusioid plant clade. Am J Bot 2016; 103:1117-1128. [PMID: 27335391 DOI: 10.3732/ajb.1500537] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 05/18/2016] [Indexed: 06/06/2023]
Abstract
PREMISE OF THE STUDY The clusioid clade (Malpighiales) has an ancient fossil record (∼90 Ma) and extant representatives exhibit a pantropical distribution represented on all former Gondwanan landmasses (Africa, Australia, India, Madagascar, and South America) except Antarctica. Several biogeographers have hypothesized that the clusioid distribution is an example of Gondwanan vicariance. Our aim is to test the hypothesis that the modern distribution of the clusioid clade is largely explained by Gondwanan fragmentation. METHODS Using a four gene, 207-taxon data set we simultaneously estimated the phylogeny and divergence times of the clusioid clade using a Bayesian Markov chain Monte Carlo approach. Ancestral Area Reconstructions (AARs) were then conducted on a distribution of 1000 trees and summarized on a reduced phylogeny. KEY RESULTS Divergence time estimates and AARs revealed only two or four cladogenic events that are potentially consistent with Gondwanan vicariance, depending on the placement of the ancient fossil Paleoclusia. In contrast, dispersal occurred on > 25% of the branches, indicating the current distribution of the clade likely reflects extensive recent dispersal during the Cenozoic (< 65 Ma), most of which occurred after the beginning of the Eocene (∼56 Ma). CONCLUSIONS These results support growing evidence that suggests many traditionally recognized angiosperm clades (families and genera) are too young for their distributions to have been influenced strictly by Gondwanan fragmentation. Instead, it appears that corridors of dispersal may be the best explanation for numerous angiosperm clades with Gondwanan distributions.
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Affiliation(s)
- Brad R Ruhfel
- Department of Biological Sciences, Eastern Kentucky University, 521 Lancaster Avenue, Richmond, Kentucky 40475 USA Department of Organismic and Evolutionary Biology, Harvard University Herbaria, Harvard University, 22 Divinity Avenue, Cambridge, Massachusetts 02138 USA
| | - Claudia P Bove
- Departamento de Botânica, Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, Rio de Janeiro 20940-040, Brazil
| | - C Thomas Philbrick
- Biological & Environmental Sciences, Western Connecticut State University, 181 White Street, Danbury, Connecticut 06810 USA
| | - Charles C Davis
- Department of Organismic and Evolutionary Biology, Harvard University Herbaria, Harvard University, 22 Divinity Avenue, Cambridge, Massachusetts 02138 USA
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