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Kshirsagar P, Gaikwad S, Pai S, Desai N, Bapat V. Evaluation of antioxidant capacity and phytochemical investigation of eleven Clusiaceae members from Western Ghats, India. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Liu T, Zhang ZQ, Xiao X, Li XQ. Bioassay-guided isolation of anti-tumor polyprenylphloroglucinols from Calophyllum polyanthum and primary mechanism. Biomed Pharmacother 2022; 151:113129. [PMID: 35594705 DOI: 10.1016/j.biopha.2022.113129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/11/2022] [Accepted: 05/13/2022] [Indexed: 11/28/2022] Open
Abstract
Five compounds were isolated from Calophyllum polyanthum leaves (10.09 g) by bioassay-guided fractionation to evaluate their anti-tumor activity. Among these compounds, apetalic acid (1) demonstrated significant inhibitory activity against 8 types of tumor cells (MHCC97H, CNE1, CNE2, B16, LOVO, SW480, A549, 1299), especially against two colon cancer cells (LOVO, SW480). Apetalic acid could inhibit cell proliferation, migration, invasion and induce apoptosis. It could significantly up-regulate the expression levels of apoptosis-related genes (BAX, Caspase-9,) and proteins (BAX, Cleaved-caspase-9, Cleaved-caspase-3) and down-regulated the expression of inhibitor of apoptosis gene (Bcl-2) and proteins (Bcl-2, phosphorylated AKT). Possible mechanism of the antitumor activity of apetalic acid derived from Calophyllum polyanthum supports its use in the prevention and treatment of colorectal cancer.
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Affiliation(s)
- Tie Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, People's Republic of China
| | - Zhuang-Qin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, People's Republic of China
| | - Xia Xiao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, People's Republic of China
| | - Xiao-Qian Li
- The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Scientific Research Center, Guizhou 563002, People's Republic of China.
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Nahar L, Talukdar AD, Nath D, Nath S, Mehan A, Ismail FMD, Sarker SD. Naturally Occurring Calanolides: Occurrence, Biosynthesis, and Pharmacological Properties Including Therapeutic Potential. Molecules 2020; 25:E4983. [PMID: 33126458 PMCID: PMC7663239 DOI: 10.3390/molecules25214983] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/23/2020] [Accepted: 10/26/2020] [Indexed: 12/11/2022] Open
Abstract
Calanolides are tetracyclic 4-substituted dipyranocoumarins. Calanolide A, isolated from the leaves and twigs of Calophyllum lanigerum var. austrocoriaceum (Whitmore) P. F. Stevens, is the first member of this group of compounds with anti-HIV-1 activity mediated by reverse transcriptase inhibition. Calanolides are classified pharmacologically as non-nucleoside reverse transcriptase inhibitors (NNRTI). There are at least 15 naturally occurring calanolides distributed mainly within the genus Calophyllum, but some of them are also present in the genus Clausena. Besides significant anti-HIV properties, which have been exploited towards potential development of new NNRTIs for anti-HIV therapy, calanolides have also been found to possess anticancer, antimicrobial and antiparasitic potential. This review article provides a comprehensive update on all aspects of naturally occurring calanolides, including their chemistry, natural occurrence, biosynthesis, pharmacological and toxicological aspects including mechanism of action and structure activity relationships, pharmacokinetics, therapeutic potentials and available patents.
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Affiliation(s)
- Lutfun Nahar
- Laboratory of Growth Regulators, Institute of Experimental Botany ASCR & Palacký University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Anupam Das Talukdar
- Department of Life Science and Bioinformatics, Assam University, Silchar, Assam 788011, India;
| | - Deepa Nath
- Department of Botany, Gurucharan College, Silchar, Assam 788004, India;
| | - Sushmita Nath
- Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom Street, Liverpool L3 3AF, UK; (S.N.); (F.M.D.)
| | - Aman Mehan
- School of Clinical Medicine, University of Cambridge, Cambridge CB2 OSP, UK;
| | - Fyaz M. D. Ismail
- Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom Street, Liverpool L3 3AF, UK; (S.N.); (F.M.D.)
| | - Satyajit D. Sarker
- Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom Street, Liverpool L3 3AF, UK; (S.N.); (F.M.D.)
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Zamakshshari NH, Ee GCL, Ismail IS, Ibrahim Z, Mah SH. Cytotoxic xanthones isolated from Calophyllum depressinervosum and Calophyllum buxifolium with antioxidant and cytotoxic activities. Food Chem Toxicol 2019; 133:110800. [PMID: 31479710 DOI: 10.1016/j.fct.2019.110800] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 08/24/2019] [Accepted: 08/30/2019] [Indexed: 01/11/2023]
Abstract
The stem bark of Calophyllum depressinervosum and Calophyllum buxifolium were extracted and examined for their antioxidant activities, together with cytotoxicity towards human cancer cells. The methanol extract of C. depressinervosum exhibited good DPPH and NO scavenging effects. The strongest BCB inhibition and FIC effects were shown by dichloromethane and ethyl acetate extracts of both species. Overall, DPPH, FRAP and FIC assays showed strong correlation with TPC. For cytotoxicity, hexane extract of C. depressinervosum possessed the strongest anti-proliferative activities towards SNU-1 cells while the hexane extract of C. buxifolium showed the strongest activity towards LS-174T and K562 cells with the IC50 values ranging from 7 to 17 μg/mL. The purification of plant extracts afforded eight xanthones, ananixanthone (1), caloxanthone B (2), caloxanthone I (3), caloxanthone J (4) xanthochymone B (5), thwaitesixanthone (6), 1,3,5,6-tetrahydroxyxanthone (7) and dombakinaxanthone (8). All the xanthones, except 1 were reported for the first time from both Calophyllum species. The xanthones were examined for their cytotoxic effect against K562 leukemic cells. Compounds 1 and 2 showed strong cytotoxicity with the IC50 values of 2.96 and 1.23 μg/mL, respectively. The molecular binding interaction of 2 was further investigated by performing molecular docking study with promising protein receptor Src kinase.
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Affiliation(s)
- Nor Hisam Zamakshshari
- Centre for Natural Product Research and Drug Discovery (CENAR), Wellness Research Cluster, Jalan Universiti, 50603, Kuala Lumpur, Wilayah Persekutuan, Kuala Lumpur, Malaysia
| | - Gwendoline Cheng Lian Ee
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Intan Safinar Ismail
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Zalikha Ibrahim
- Department of Pharmaceutical Chemistry, Kulliyyah of Pharmacy, International Islamic University Malaysia, Bandar Indera Mahkota Campus, 25200, Kuantan, Pahang, Malaysia
| | - Siau Hui Mah
- School of Biosciences, Taylor's University, Lakeside Campus, 1, Jalan Taylor's, 47500, Subang Jaya, Selangor, Malaysia.
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Rouger C, Pagie S, Derbré S, Le Ray AM, Richomme P, Charreau B. Prenylated Polyphenols from Clusiaceae and Calophyllaceae with Immunomodulatory Activity on Endothelial Cells. PLoS One 2016; 11:e0167361. [PMID: 27907087 PMCID: PMC5131938 DOI: 10.1371/journal.pone.0167361] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 11/12/2016] [Indexed: 12/19/2022] Open
Abstract
Endothelial cells (ECs) are key players in inflammation and immune responses involved in numerous pathologies. Although attempts were experimentally undertaken to prevent and control EC activation, drug leads and probes still remain necessary. Natural products (NPs) from Clusiaceous and Calophyllaceous plants were previously reported as potential candidates to prevent endothelial dysfunction. The present study aimed to identify more precisely the molecular scaffolds that could limit EC activation. Here, 13 polyphenols belonging to 5 different chemical types of secondary metabolites (i.e., mammea coumarins, a biflavonoid, a pyranochromanone acid, a polyprenylated polycyclic acylphloroglucinol (PPAP) and two xanthones) were tested on resting and cytokine-activated EC cultures. Quantitative and qualitative changes in the expression of both adhesion molecules (VCAM-1, ICAM-1, E-selectin) and major histocompatibility complex (MHC) molecules have been used to measure their pharmaceutical potential. As a result, we identified 3 mammea coumarins that efficiently reduce (up to >90% at 10 μM) both basal and cytokine-regulated levels of MHC class I, class II, MICA and HLA-E on EC surface. They also prevented VCAM-1 induction upon inflammation. From a structural point of view, our results associate the loss of the free prenyl group substituting mammea coumarins with a reduced cellular cytotoxicity but also an abrogation of their anti-inflammatory potential and a reduction of their immunosuppressive effects. A PPAP, guttiferone J, also triggers a strong immunomodulation but restricted to HLA-E and MHC class II molecules. In conclusion, mammea coumarins with a free prenyl group and the PPAP guttiferone J emerge as NPs able to drastically decrease both VCAM-1 and a set of MHC molecules and to potentially reduce the immunogenicity of the endothelium.
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Affiliation(s)
- Caroline Rouger
- Université d’Angers, Campus du végétal, SFR4207 QUASAV, EA921 SONAS, Beaucouzé, France
| | - Sylvain Pagie
- INSERM UMR1064, Centre de Recherche en Transplantation et Immunologie, IHU CESTI, LabEx IGO and LabEx Transplantex, Nantes, France
- CHU de Nantes, Institut de Transplantation-Urologie-Néphrologie, ITUN, Nantes, France
- LUNAM, Université de Nantes, Faculté de Médecine, Nantes, France
| | - Séverine Derbré
- Université d’Angers, Campus du végétal, SFR4207 QUASAV, EA921 SONAS, Beaucouzé, France
| | - Anne-Marie Le Ray
- Université d’Angers, Campus du végétal, SFR4207 QUASAV, EA921 SONAS, Beaucouzé, France
| | - Pascal Richomme
- Université d’Angers, Campus du végétal, SFR4207 QUASAV, EA921 SONAS, Beaucouzé, France
| | - Béatrice Charreau
- INSERM UMR1064, Centre de Recherche en Transplantation et Immunologie, IHU CESTI, LabEx IGO and LabEx Transplantex, Nantes, France
- CHU de Nantes, Institut de Transplantation-Urologie-Néphrologie, ITUN, Nantes, France
- LUNAM, Université de Nantes, Faculté de Médecine, Nantes, France
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