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Samkian A, Virgil SC, Stoltz BM. Total Synthesis of Hypersampsone M. J Am Chem Soc 2024; 146:18886-18891. [PMID: 38958271 PMCID: PMC11258692 DOI: 10.1021/jacs.4c07007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/23/2024] [Accepted: 06/24/2024] [Indexed: 07/04/2024]
Abstract
We report the first total synthesis of hypersampsone M, an archetypal member of the homoadamantane polycyclic polyprenylated acylphloroglucinols (PPAPs). Commencing from cyclohexenone, a key cyclopentene annulation followed by ring-expansion results in an elusive hydrazulene that undergoes a series of unexpected late-stage transformations, ultimately enabling completion of the synthesis. The route detailed herein represents a potentially general strategy for the synthesis of related homoadamantane PPAPs.
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Affiliation(s)
- Adrian
E. Samkian
- The Warren and Katharine Schlinger
Laboratory for Chemistry and Chemical Engineering, Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
| | - Scott C. Virgil
- The Warren and Katharine Schlinger
Laboratory for Chemistry and Chemical Engineering, Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
| | - Brian M. Stoltz
- The Warren and Katharine Schlinger
Laboratory for Chemistry and Chemical Engineering, Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
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2
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Qiu YF, Grossman RB, Yang XW. Structure Revision of Type B Polycyclic Polyprenylated Acylphloroglucinols Fused to a Partly Reduced Furan Ring. JOURNAL OF NATURAL PRODUCTS 2023; 86:2391-2397. [PMID: 37843029 DOI: 10.1021/acs.jnatprod.3c00591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Four previous papers reported the isolation and structural determination of 10 polycyclic polyprenylated acylphloroglucinols (PPAPs), uraliones F, G, K, and O, attenuatumiones E and F, and scabrumiones A-D, from Hypericum species. Their structures were identified as type B PPAPs that featured not only the characteristic acyl group at C-3 of the bicyclo[3.3.1]nonane core but also a partly reduced furan ring fused to the C-1-C-2-O-2 atoms of the core. However, the 1D and 2D NMR data of these compounds were more consistent with type A PPAPs that featured not only the acyl group at C-1 but also a partially reduced furan ring fused to the C-3-C-2-O-2 atoms of the core. Now we revise these 10 previously proposed structures to the corresponding type A PPAPs via NMR analysis. Additionally, we propose a rule that uses NMR data to determine whether a particular PPAP that is fused to a partly reduced furan ring at C-3-C-2-O-2 or C-1-C-2-O-2 is type A or type B, respectively. We also propose a rule to assign the relative configurations of corresponding type A PPAPs at C-18 and revise the configurations of sampsonione N, hypericumoxides A-C, and hyperscabin G.
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Affiliation(s)
- Yu-Feng Qiu
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, People's Republic of China
| | - Robert B Grossman
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506-0055, United States
| | - Xing-Wei Yang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, People's Republic of China
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3
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Nguyen LTT, Dinh CP, Nguyen PTD, To HT, Nguyen DKA, Trinh DH, Ngo NTN, Nguyen LTT, Nguyen TN, Nguyen LHD, Trinh BTD. In vitro and in silico antioxidant and α-glucosidase inhibitory potential of compounds isolated from Garcinia gaudichaudii. Nat Prod Res 2023; 37:750-758. [PMID: 35727176 DOI: 10.1080/14786419.2022.2089985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Nine compounds including a new one, garcichaudiic acid (1), were isolated from the bark of G. gaudichaudii and their structures were characterized mainly by 1 D and 2 D NMR experiments. The antioxidant capacity of the isolated compounds was determined using DPPH radical scavenging assay and the anti-hyperglycemic activity was assessed by measuring the inhibitory effect against α-glucosidase. Among them, compound 4 showed higher antioxidant activity than the positive control, ascorbic acid, while both compounds 1 and 7 exhibited more significant α-glucosidase inhibitory activity than the reference drug acarbose. Molecular docking analysis of the bioactive compounds was also performed to examine the binding modes and key interactions with the catalytic site.
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Affiliation(s)
- Le-Thu T Nguyen
- Natural Product and Medicinal Chemistry Lab, Faculty of Chemistry, VNUHCM-University of Science (HCMUS), Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Chau-Phi Dinh
- Natural Product and Medicinal Chemistry Lab, Faculty of Chemistry, VNUHCM-University of Science (HCMUS), Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Phuong T D Nguyen
- Natural Product and Medicinal Chemistry Lab, Faculty of Chemistry, VNUHCM-University of Science (HCMUS), Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Huong T To
- Natural Product and Medicinal Chemistry Lab, Faculty of Chemistry, VNUHCM-University of Science (HCMUS), Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Dieu K A Nguyen
- Natural Product and Medicinal Chemistry Lab, Faculty of Chemistry, VNUHCM-University of Science (HCMUS), Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Duong H Trinh
- Natural Product and Medicinal Chemistry Lab, Faculty of Chemistry, VNUHCM-University of Science (HCMUS), Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Ngoc T N Ngo
- Natural Product and Medicinal Chemistry Lab, Faculty of Chemistry, VNUHCM-University of Science (HCMUS), Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam.,Department of Analytical Chemistry, HCMUS, Ho Chi Minh City, Vietnam
| | - Ly T T Nguyen
- Natural Product and Medicinal Chemistry Lab, Faculty of Chemistry, VNUHCM-University of Science (HCMUS), Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Thanh-Nhan Nguyen
- Natural Product and Medicinal Chemistry Lab, Faculty of Chemistry, VNUHCM-University of Science (HCMUS), Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Lien-Hoa D Nguyen
- Natural Product and Medicinal Chemistry Lab, Faculty of Chemistry, VNUHCM-University of Science (HCMUS), Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam.,Department of Organic Chemistry, HCMUS, Ho Chi Minh City, Vietnam
| | - Binh T D Trinh
- Natural Product and Medicinal Chemistry Lab, Faculty of Chemistry, VNUHCM-University of Science (HCMUS), Ho Chi Minh City, Vietnam.,Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam.,Department of Analytical Chemistry, HCMUS, Ho Chi Minh City, Vietnam
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4
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Cytotoxic Isopentenyl Phloroglucinol Compounds from Garcinia xanthochymus Using LC-MS-Based Metabolomics. Metabolites 2023; 13:metabo13020258. [PMID: 36837877 PMCID: PMC9964469 DOI: 10.3390/metabo13020258] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/03/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023] Open
Abstract
Many unique chemical metabolites with significant antitumor activities have been isolated from Garcinia species and have become a leading hotspot of antitumor research in recent years. The aim of this study was to identify bioactive compounds from different plant parts (leaf, branch, stem bark, fruit, and seed) of G. xanthochymus through combining LC-MS-based metabolomics with cytotoxicity assays. As a result, 70% methanol seed extract exerted significant cytotoxic effects on five human cancer cell types (HL-60, A549, SMMC-7721, MDA-MB-231, and SW480). LC-MS-based metabolomics analysis was used, including principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA), in order to identify 12 potential markers from seed extract that may relate to bioactivity. LC-MS guidance isolated the markers to obtain three compounds and identified new isopentenyl phloroglucinols (1-3, named garxanthochin A-C), using spectroscopic methods. Among them, garxanthochin B (2) demonstrated moderate inhibitory activities against five human cancer cell types, with IC50 values of 14.71~24.43 μM. These findings indicate that G. xanthochymus seed has significant cytotoxic activity against cancer cells and garxanthochin B has potential applications in the development of antitumor-led natural compounds.
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Su YH, Lin JY. Menthone Inhalation Alleviates Local and Systemic Allergic Inflammation in Ovalbumin-Sensitized and Challenged Asthmatic Mice. Int J Mol Sci 2022; 23:ijms23074011. [PMID: 35409371 PMCID: PMC8999977 DOI: 10.3390/ijms23074011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 03/31/2022] [Accepted: 04/01/2022] [Indexed: 02/01/2023] Open
Abstract
Menthone is rich in Mentha × Piperita L. essential oil and it has anti-inflammatory properties; research shows that it is useful, via percutaneous absorption, in treating inflammation-related diseases. However, anti-allergic inflammatory effects of volatile menthone have not yet been used to treat allergic asthma, in vivo. We hypothesized that menthone inhalation may have anti-inflammatory and anti-allergic effects in patients with allergic asthma. Therefore, in our study, menthone inhalation was used to treat ovalbumin (OVA)-sensitized and challenged asthmatic mice. Allergic inflammation mediator changes in the lungs and airways, sera, splenocytes, and peritoneal macrophages of the mice were measured. Relative expression amounts of six receptor genes related to allergic inflammation of the lungs and airways were quantitated using a two-step real time quantitative polymerase chain reaction (qPCR). Results showed that menthone inhalation increased serum OVA-specific IgG2a/IgG1 and IgG2a/IgE ratios, increased Th1-type cytokine production in the bronchoalveolar lavage fluid, and decreased nitric oxide, protein, and eotaxin levels. Menthone inhalation inhibited mast cell and eosinophil degranulation, and chemokine (C-C motif) receptor 3 (Ccr3) gene expression amounts, but (relatively) increased Th1 cytokine secretion by splenocytes. Our results evidence that menthone inhalation alleviates local and systemic allergic inflammation in asthmatic mice.
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The ethanol extract of Garcinia subelliptica Merr. induces autophagy. BMC Complement Med Ther 2021; 21:280. [PMID: 34758822 PMCID: PMC8579681 DOI: 10.1186/s12906-021-03454-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 10/28/2021] [Indexed: 12/13/2022] Open
Abstract
Background Garcinia subelliptica Merr. is a multipurpose coastal tree, the potential medicinal effects of which have been studied, including cancer suppression. Here, we present evidence that the ethanol extract of G. subelliptica Merr. (eGSM) induces autophagy in human lung adenocarcinoma cells. Methods Two different human lung adenocarcinoma cell lines, A549 and SNU2292, were treated with varying amounts of eGSM. Cytotoxicity elicited by eGSM was assessed by MTT assay and PARP degradation. Autophagy in A549 and SNU2292 was determined by western blotting for AMPK, mTOR, ULK1, and LC3. Genetic deletion of AMPKα in HEK293 cells was carried out by CRISPR. Results eGSM elicited cytotoxicity, but not apoptosis, in A549 and SNU2292 cells. eGSM increased LC3-II production in both A549 and, more extensively, SNU2292, suggesting that eGSM induces autophagy. In A549, eGSM activated AMPK, an essential autophagy activator, but not suppressed mTOR, an autophagy blocker, suggesting that eGSM induces autophagy by primarily activating the AMPK pathway in A549. By contrast, eGSM suppressed mTOR activity without activating AMPK in SNU2292, suggesting that eGSM induces autophagy by mainly suppressing mTOR in SNU2292. In HEK293 cells lacking AMPKα expression, eGSM increased LC3-II production, confirming that the autophagy induced by eGSM can occur without the AMPK pathway. Conclusion Our findings suggest that eGSM induces autophagy by activating AMPK or suppressing mTOR pathways, depending on cell types. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-021-03454-4.
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7
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Guo Y, Cao Y, Qi C, Tong Q, Chen C, Yang J, Zhu H, Zhang Y. Polycyclic polyprenylated acylphloroglucinols with immunosuppressive activity from Hypericum perforatum and absolute configurations assignment of previously reported analogues. Bioorg Chem 2021; 114:105144. [PMID: 34328858 DOI: 10.1016/j.bioorg.2021.105144] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/18/2021] [Accepted: 07/01/2021] [Indexed: 10/20/2022]
Abstract
Hyperformitins A-I (1-9), nine undescribed polycyclic polyprenylated acylphloroglucinols (PPAPs) with double-bond migration, along with four new isomers hyperformitins J-M (10-13), were isolated from Hypericum perforatum. Their structures and absolute configurations were determined by spectroscopic analyses including HRESIMS, IR, UV, NMR, and ECD, as well as optical rotation (OR) calculations. The absolute configurations of previously reported analogues, garsubellins D and C as well as garcinielliptones L and M, were assigned for the first time by NMR spectra and specific rotations analyses assisting with OR calculations. Selected compounds were tested for their immunosuppressive activities against lipopolysaccharide (LPS)-induced B lymphocyte proliferation. Compounds 1, 3, 4, 5, 7, and 11 showed inhibition activities against the proliferation of B lymphocyte with IC50 values ranging from 4.1 to 9.7 μM. Furthermore, the neuroprotective activities of the isolates against corticosterone (CORT)-induced injury in PC12 cells were also tested, and compounds 1, 12, and 13 exhibited neuroprotective effects with cell viabilities of 68.0%, 71.3%, and 68.4%, respectively under the concentration of 10 μM.
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Affiliation(s)
- 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, China
| | - Yunfang Cao
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, 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, China
| | - Qingyi Tong
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Chunmei Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jing Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China.
| | - Hucheng Zhu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, 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, China.
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Garcinielliptone G from Garcinia subelliptica Induces Apoptosis in Acute Leukemia Cells. Molecules 2021; 26:molecules26092422. [PMID: 33919344 PMCID: PMC8122622 DOI: 10.3390/molecules26092422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 04/15/2021] [Accepted: 04/19/2021] [Indexed: 11/29/2022] Open
Abstract
Cytotoxicity and apoptosis-inducing properties of compounds isolated from Garcinia subelliptica leaves were investigated. The hexane-soluble portion of MeOH extracts of G. subelliptica leaves that showed cytotoxic activity was separated to yield seven compounds 1–7. Chemical structure analysis using NMR spectroscopy and mass spectrometry confirmed that compound 1 was canophyllol, and compounds 2–7 were garcinielliptones N, O, J, G, F, and garcinielliptin oxide, respectively. Among them, garcinielliptone G (5) showed growth inhibition by causing apoptosis in THP-1 and Jurkat cells derived from human acute monocytic leukemia and T lymphocyte cells, respectively. Apoptosis induced by garcinielliptone G (5) was demonstrated by the detection of early apoptotic cells with fluorescein-labeled Annexin V and increases in cleaved caspase-3 and cleaved PARP protein levels. However, the addition of caspase inhibitor Z-VAD-FMK did not affect growth arrest or apoptosis induction. These results suggest that garcinielliptone G (5) can induce both caspase-3 activation and caspase-independent apoptosis. Therefore, garcinielliptone G (5) may be a potential candidate for acute leukemia treatment.
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9
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Chen Q, Di L, Zhang Y, Li N. Chemical constituents with cytotoxic and anti-inflammatory activity in Hypericum sampsonii and the antitumor potential under the view of cancer-related inflammation. JOURNAL OF ETHNOPHARMACOLOGY 2020; 259:112948. [PMID: 32417427 DOI: 10.1016/j.jep.2020.112948] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 04/23/2020] [Accepted: 05/01/2020] [Indexed: 05/22/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Chronic inflammation has an important role in the development of cancers. Hypericum sampsonii, known as "Yuanbao Cao", is mainly distributed in the southwest of China. As a folk medicinal plant, "Yuanbao Cao" is traditionally used for treatment of various inflammation-related diseases including swelling, burns, arthritis, and dermatitis, etc. The plant is a promising anticancer herb. However, there is no research on the antitumor potential of this plant from the view of cancer-related inflammation strategy. AIM OF THE STUDY To explore the H. sampsonii in relation to cancer-related chemical constituents with anti-inflammatory and cytotoxic activity in cancer-related inflammation. MATERIALS AND METHODS The chemical constituents of H. sampsonii were isolated by repeated chromatography techniques, and their structures were identified mainly by spectroscopic methods and compared to published data. The chemical profile of the herb was analyzed using HPLC. The cytotoxicities of compounds against five cancer cell lines: human melanoma cell (A375), human breast cancer cell (MDA-MB-231), human gastric cancer cell (SGC-7901), human colon cancer cell (SiHa), and human bone marrow neuroblastoma cell (SHSY-5Y), were tested using MTT assay; their anti-inflammatory activities were evaluated by inhibition on NO production in LPS-stimulated RAW 264.7, THP-1 and BV-2 microglial cells. RESULTS Twenty-five compounds, including four phenols (1-4), two anthraquinonoids (5 and 6), six xanthones (7-12), one benzophenone (13), one phloroglucinol (14), nine flavonoids (15-23), one sterol (24) and one alkaloid (25), were isolated from the EtOH extract of H. sampsonii. Of them, compounds 3, 4, 6, 7, 10-14, 17, 19, 22 and 23 were reported in H. sampsonii for the first time. HPLC analysis showed that flavonoids were the main constituents in the herb. MTT assay revealed that compounds 1, 2, 5-14, 15, 17, 18, 20, 21, 22 and 25 had selective cytotoxic activities (IC50: 7.52-158.90 μM) against tested cancer cells, in which compound 5, 6, 13 and 14 displayed high activities against A375, MDA-MB-231, SiHa and SHSY-5Y. In the screening experiment of anti-inflammatory activity, most compounds (1-2, 5-23) showed considerable high anti-inflammatory activities (IC50: 10.59-42.75 μM), in which compounds 5, 6, 13, 14, and 15 exhibited high anti-inflammatory activities in LPS-stimulated RAW264.7, THP-1 and BV-2 microglial cells. CONCLUSIONS Compounds 3, 4, 6, 7, 10-14, 17, 19, 22 and 23 were isolated for the first time from H. sampsonii. Compound 5, 6, 13 and 14 displayed high cytotoxic activities against the tested cancer cell lines. Compounds (1-2, 5-23) showed anti-inflammatory activities, of them, compounds 5, 6, 13, 14 and 15 exhibited the high activity. From the view of cancer-related inflammation point, not only the compounds with high cytotoxicity, but those compounds with anti-inflammatory activities, especially the flavonoids, contribute to the antitumor potential of H. sampsonii. The results and viewpoint of present study provide a different insight to better understand the antitumor potential of H. sampsonii, and may also promote the reasonable usage of this folk medical herb.
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Affiliation(s)
- Qian Chen
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, PR China.
| | - Lei Di
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, PR China.
| | - Yi Zhang
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, PR China.
| | - Ning Li
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, PR China.
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Teng H, Ma Z, Teng H, Du Y, Chen X, Chen Y, Yang G. Two novel cyclohexanone-monocyclic polycyclic polyprenylated acylphloroglucinols from Garcinia multiflora fruits. Nat Prod Res 2020; 36:508-514. [DOI: 10.1080/14786419.2020.1788559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Haida Teng
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, P.R. China
| | - Ziyu Ma
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, P.R. China
| | - Hongli Teng
- Guangxi International Zhuang Medicine Hospital, Nanning, P. R. China
| | - Yan Du
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, P.R. China
| | - Xi Chen
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, P.R. China
| | - Yu Chen
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, P.R. China
| | - Guangzhong Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, P.R. China
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11
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Grossman RB, Yang XW. Structural Revision of Garcinielliptin Oxide and Garcinielliptone E. JOURNAL OF NATURAL PRODUCTS 2020; 83:2041-2044. [PMID: 32496059 DOI: 10.1021/acs.jnatprod.0c00306] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Previously, Lin et al. reported the isolation and structural determination of two triterpenoids, garcinielliptin oxide (GO) and garcinielliptone E (GE). Their unusual structural features, which remained unparalleled in subsequent decades despite the intervening discovery of hundreds of other polycyclic polyprenylated acylphloroglucinols (PPAPs), caused us to question the originally assigned structures, so GO was reisolated from Garcinia subelliptica, and its NMR spectra were reacquired. In this Note, we revise the structures of GO and the related GE via NMR analysis, biosynthetic considerations, and chemical conversion. Garcinielliptone T, a new PPAP, was also isolated and characterized. GO exhibited weak inhibitory activity against acetylcholinesterase with an IC50 value of 20.7 μM.
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Affiliation(s)
- Robert B Grossman
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506-0055, United States
| | - Xing-Wei Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
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12
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Chhetri BK, Lavoie S, Sweeney-Jones AM, Kubanek J. Recent trends in the structural revision of natural products. Nat Prod Rep 2019; 35:514-531. [PMID: 29623331 DOI: 10.1039/c8np00011e] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Covering: 2012 to 2017 This article reviews recent reports on the structural revision of natural products. Through a critical assessment of the original and revised published structures, the article addresses why each structure was targeted for revision, discusses the techniques and key discrepancies that led to the proposal of the revised structure, and offers measures that may have been taken during the original structure determination to prevent error. With the revised structures in hand, weaknesses of original proposals are assessed, providing a better understanding on the logic behind structure determination.
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Affiliation(s)
- Bhuwan Khatri Chhetri
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA.
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Hu YL, Hu K, Kong LM, Xia F, Yang XW, Xu G. Norascyronones A and B, 2,3,4-nor-Polycyclic Polyprenylated Acylphloroglucinols from Hypericum ascyron. Org Lett 2019; 21:1007-1010. [PMID: 30693777 DOI: 10.1021/acs.orglett.8b04022] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Ya-Li Hu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Kun Hu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People’s Republic of China
| | - Ling-Mei Kong
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Fan Xia
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xing-Wei Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People’s Republic of China
| | - Gang Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People’s Republic of China
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14
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Zheng C, Wang X, Fu W, Lu Y, Tan H, Xu H. Total Synthesis of Norsampsones A and B, Garcinielliptones N and O, and Hyperscabrin A. JOURNAL OF NATURAL PRODUCTS 2018; 81:2582-2589. [PMID: 30394090 DOI: 10.1021/acs.jnatprod.8b00763] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The asymmetric total synthesis of five decarbonyl polycyclic polyprenylated acylphloroglucinols norsampsnes A (3) and B (4), garcinielliptones O (5) and N (6), and hyperscabrin A (7) is described. The synthesis to construct the core substituted cyclohexanone ring of these natural products was achieved by a key Dieckmann condensation. The chirality of the molecules was introduced by the stereoselective alkylation with Evans' oxazolidinones. The synthesis could be run on grams scale, and the Dieckmann condensation was investigated through the DFT calculations to help improve the yield of garcinielliptone O (5). Determination of the absolute configuration of garcinielliptones O (5) and N (6) was also achieved.
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Affiliation(s)
- Changwu Zheng
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , People's Republic of China
| | - Xueying Wang
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , People's Republic of China
| | - Wenwei Fu
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , People's Republic of China
| | - Yue Lu
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , People's Republic of China
| | - Hongsheng Tan
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , People's Republic of China
| | - Hongxi Xu
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , People's Republic of China
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15
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Yang H, Lee SY, Lee SR, Pyun BJ, Kim HJ, Lee YH, Kwon SW, Suh DH, Lee CH, Hong EJ, Lee HW. Therapeutic Effect of Ecklonia cava Extract in Letrozole-Induced Polycystic Ovary Syndrome Rats. Front Pharmacol 2018; 9:1325. [PMID: 30524282 PMCID: PMC6262357 DOI: 10.3389/fphar.2018.01325] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 10/29/2018] [Indexed: 12/18/2022] Open
Abstract
Polycystic ovary syndrome (PCOS) is an endocrinal disorder that afflicts mainly women of childbearing age. The symptoms of PCOS are irregular menstrual cycles, weight gain, subfertility and infertility. However, because the etiology is unclear, management and treatment methods for PCOS are not well established. Recently, natural substances have been used for PCOS therapy. Ecklonia cava (E. cava) is a well-known natural substance that attenuates the effects of inflammation, allergies, and cancer. In this study, we investigated the effects of E. cava extract in rats with PCOS. When rats with letrozole-induced PCOS were exposed to the E. cava extract, the regular estrus cycle was restored, similar to that in placebo rats. Hormone levels, including the levels of testosterone, estrogen, luteinizing hormone (LH), follicle stimulating hormone (FSH), and anti-Müllerian hormone (AMH), were restored to their normal states. Histological analysis revealed that the polycystic ovary symptoms were significantly decreased in the E. cava-treated rats and were comparable to those of normal ovaries. At the transcriptional and translational levels, Ar, and Esr2 levels were markedly increased in the E. cava-treated rats with PCOS compared with the rats with letrozole-induced PCOS. These results suggest that the E. cava extract inhibits the symptoms of PCOS by restoring imbalanced hormonal levels and irregular ovarian cycles in letrozole-induced female rats.
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Affiliation(s)
- Hyun Yang
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon, South Korea
| | - Seung Yeon Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
| | - Sang R Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
| | - Bo-Jeong Pyun
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon, South Korea
| | - Hye Jin Kim
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon, South Korea
| | - Young Ho Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
| | - Sun Woo Kwon
- College of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
| | - Dong Ho Suh
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, South Korea
| | - Choong Hwan Lee
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, South Korea
| | - Eui-Ju Hong
- College of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
| | - Hye Won Lee
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon, South Korea
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16
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Acylphloroglucinol Derivatives from Garcinia multiflora with Anti-Inflammatory Effect in LPS-Induced RAW264.7 Macrophages. Molecules 2018; 23:molecules23102587. [PMID: 30308951 PMCID: PMC6222856 DOI: 10.3390/molecules23102587] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 10/03/2018] [Accepted: 10/07/2018] [Indexed: 11/16/2022] Open
Abstract
Two new acylphloroglucinol derivatives, 13,14-didehydroxygarcicowin C (1) and 13,14-didehydroxyisoxanthochymol (2), have been isolated from the stems of Garcinia multiflora, together with seven known compounds (3⁻9). The structures of new compounds 1 and 2 were elucidated by MS and extensive 1D/2D NMR spectroscopic analyses. Among the isolates, 13,14-didehydroxy-isoxanthochymol (2) and sampsonione B (3) exhibited inhibition against lipopolysaccharide (LPS)-induced NF-κB activation in macrophages at 30 μM with relative luciferase activity values (inhibitory %) of 0.75 ± 0.03 (24 ± 4%) and 0.12 ± 0.03 (88 ± 4%), respectively. Additionally, sampsonione B (3) reduced LPS-induced nitric oxide (NO) production in murine RAW264.7 macrophages and did not induce cytotoxicity against RAW 264.7 cells after 24 h treatment. Compound 3 is worth further investigation and may be expectantly developed as an anti-inflammatory drug candidate.
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17
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Yang XW, Grossman RB, Xu G. Research Progress of Polycyclic Polyprenylated Acylphloroglucinols. Chem Rev 2018; 118:3508-3558. [PMID: 29461053 DOI: 10.1021/acs.chemrev.7b00551] [Citation(s) in RCA: 249] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Polycyclic polyprenylated acylphloroglucinols (PPAPs) are a class of hybrid natural products sharing the mevalonate/methylerythritol phosphate and polyketide biosynthetic pathways and showing considerable structure and bioactivity diversity. This review discusses the progress of research into the chemistry and biological activity of 421 natural PPAPs in the past 11 years as well as in-depth studies of biological activities and total synthesis of some PPAPs isolated before 2006. We created an online database of all PPAPs known to date at http://www.chem.uky.edu/research/grossman/PPAPs . Two subclasses of biosynthetically related metabolites, spirocyclic PPAPs with octahydrospiro[cyclohexan-1,5'-indene]-2,4,6-trione core and complicated PPAPs produced by intramolecular [4 + 2] cycloadditions of MPAPs, are brought into the PPAP family. Some PPAPs' relative or absolute configurations are reassigned or critically discussed, and the confusing trivial names in PPAPs investigations are clarified. Pharmacologic studies have revealed a new molecular mechanism whereby hyperforin and its derivatives regulate neurotransmitter levels by activating TRPC6 as well as the antitumor mechanism of garcinol and its analogues. The antineoplastic potential of some type B PPAPs such as oblongifolin C and guttiferone K has increased significantly. As a result of the recent appearances of innovative synthetic methods and strategies, the total syntheses of 22 natural PPAPs including hyperforin, garcinol, and plukenetione A have been accomplished.
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Affiliation(s)
- Xing-Wei Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming 650201 , People's Republic of China
| | - Robert B Grossman
- Department of Chemistry , University of Kentucky , Lexington , Kentucky 40506-0055 , United States
| | - Gang Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming 650201 , People's Republic of China
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18
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Guo Y, Zhang N, Chen C, Huang J, Li XN, Liu J, Zhu H, Tong Q, Zhang J, Luo Z, Xue Y, Zhang Y. Tricyclic Polyprenylated Acylphloroglucinols from St John's Wort, Hypericum perforatum. JOURNAL OF NATURAL PRODUCTS 2017; 80:1493-1504. [PMID: 28445039 DOI: 10.1021/acs.jnatprod.6b01178] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The new polyprenylated acylphloroglucinol derivatives 1-15 and the known furohyperforin (16) were isolated from the stems and leaves of Hypericum perforatum. Their structures were determined by analyses of NMR and HRESIMS data. Their absolute configurations were elucidated by a combination of electronic circular dichroism (ECD) and Rh2(OCOCF3)4-induced ECD, as well as X-ray diffraction crystallography. The new hyperforatin F (9) contains a unique acetyl functionality at C-1 of the bicyclo[3.3.1]nonane core. Hyperforatins G (10) and H (11) are similarly the first examples of naturally occurring [3.3.1]-type polycyclic prenylated acylphloroglucinols possessing a carbonyl functionality at C-32. The compounds were tested for their acetylcholinesterase (AChE) inhibitory activities and cytotoxic activities against a panel of human tumor cell lines. Compounds 3, 5, 6, 8, and 9 exerted moderate inhibitory activities (IC50 3.98-9.13 μM) against AChE.
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Affiliation(s)
| | | | | | | | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650204, Yunnan, People's Republic of China
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19
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da Silva Prado L, da Silva J, Garcia ALH, Boaretto FBM, Grivicich I, Conter LU, de Oliveira Salvi A, Reginatto FH, Vencato SB, de Barros Falcão Ferraz A, Picada JN. Evaluation of DNA Damage in HepG2 Cells and Mutagenicity of Garcinielliptone FC, A Bioactive Benzophenone. Basic Clin Pharmacol Toxicol 2017; 120:621-627. [DOI: 10.1111/bcpt.12753] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 12/21/2016] [Indexed: 02/04/2023]
Affiliation(s)
| | - Juliana da Silva
- Laboratory of Genetic Toxicology; Lutheran University of Brazil (ULBRA); Canoas Brazil
| | | | | | - Ivana Grivicich
- Laboratory of Cancer Biology; Lutheran University of Brazil (ULBRA); Canoas Brazil
| | | | - Aguisson de Oliveira Salvi
- Graduate Program in Pharmacy; Health Sciences Center; Federal University of Santa Catarina (UFSC); Florianópolis Brazil
| | - Flávio Henrique Reginatto
- Graduate Program in Pharmacy; Health Sciences Center; Federal University of Santa Catarina (UFSC); Florianópolis Brazil
| | - Suele Bierhals Vencato
- Laboratory of Pharmacognosy and Phytochemistry; Lutheran University of Brazil (ULBRA); Canoas Brazil
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20
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Yang XW, Yang J, Xu G. Skeleton Reassignment of Type C Polycyclic Polyprenylated Acylphloroglucinols. JOURNAL OF NATURAL PRODUCTS 2017; 80:108-113. [PMID: 28033006 DOI: 10.1021/acs.jnatprod.6b00754] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The previous assignment of the type C skeleton of polycyclic polyprenylated acylphloroglucinols (PPAPs) was controversial and proved to be incorrect in this study. The structures of the type C PPAPs (3-6) were revised to corresponding type A structures (3a-6a) via 13C NMR spectroscopic analysis and a quantum computational chemistry method. Therefore, only types A and B PPAPs are likely present in plants of the family Clusiaceae.
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Affiliation(s)
- Xing-Wei Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People's Republic of China
| | - Jing Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People's Republic of China
| | - Gang Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People's Republic of China
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21
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Inoue T, Kainuma M, Baba K, Oshiro N, Kimura N, Chan EWC. Garcinia subelliptica Merr. (Fukugi): A multipurpose coastal tree with promising medicinal properties. JOURNAL OF COMPLEMENTARY MEDICINE RESEARCH 2017; 6:121-127. [PMID: 28163970 PMCID: PMC5289081 DOI: 10.5455/jice.20161229060034] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 11/28/2016] [Indexed: 11/26/2022]
Abstract
In this short review, the current knowledge on the botany, ecology, uses, and medicinal properties of the multipurpose Garcinia subelliptica (Fukugi) is updated. As yet, there are no reviews on this indigenous and heritage coastal tree species of the Ryukyu Islands in Japan, which has ethnocultural, ecological, and pharmacological significance. Planted by the Okinawan people some 300 years ago, Fukugi trees serve as windbreaks and accord protection against the destructive typhoons. The species has become a popular ornamental tree, and its bark has been used for dyeing fabrics. It forms part of the food chain for mammals and insects and serves as nesting sites for birds. Endowed with bioactive compounds of benzophenones, xanthones, biflavonoids, and triterpenoids, G. subelliptica possesses anticancer, anti-inflammatory, anti-tyrosinase, trypanocidal, antibacterial, DNA topoisomerase inhibitory, DNA strand scission, choline acetyltransferase enhancing, hypoxia-inducible factor-1 inhibitory, and antiandrogenic activities. Fukugetin and fukugiside are two novel biflavonoids named after the species. The chemical constituents of Fukugi fruits when compared with those of mangosteen yielded interesting contrasts.
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Affiliation(s)
- Tomomi Inoue
- Centre for Environmental Biology and Ecosystem Studies, National Institute for Environmental Studies, Tsukuba, Japan
| | - Mami Kainuma
- International Society for Mangrove Ecosystems (ISME), Okinawa, Japan
| | - Karin Baba
- International Society for Mangrove Ecosystems (ISME), Okinawa, Japan
| | - Nozomi Oshiro
- International Society for Mangrove Ecosystems (ISME), Okinawa, Japan
| | - Norimi Kimura
- International Society for Mangrove Ecosystems (ISME), Okinawa, Japan
| | - Eric Wei Chiang Chan
- Department of Food Science with Nutrition, Faculty of Applied Sciences, UCSI University, Cheras, Kuala Lumpur, Malaysia
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22
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Zhu H, Chen C, Yang J, Li D, Zhang J, Guo Y, Wang J, Luo Z, Xue Y, Zhang Y. Hyperhexanone A, a crucial intermediate from bicyclo[3.3.1]- to cyclohexanone monocyclic-polycyclic polyprenylated acylphloroglucinols. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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23
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Crockett SL, Kunert O, Pferschy-Wenzig EM, Jacob M, Schuehly W, Bauer R. Phloroglucinol and Terpenoid Derivatives from Hypericum cistifolium and H. galioides (Hypericaceae). FRONTIERS IN PLANT SCIENCE 2016; 7:961. [PMID: 27458464 PMCID: PMC4930935 DOI: 10.3389/fpls.2016.00961] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 06/15/2016] [Indexed: 06/06/2023]
Abstract
A new simple phloroglucinol derivative characterized as 1-(6-hydroxy-2,4-dimethoxyphenyl)-2-methyl-1-propanone (1) was isolated from Hypericum cistifolium (Hypericaceae) as a major constituent of the non-polar plant extract. Minor amounts of this new compound, in addition to two known structurally related phloroglucinol derivatives (2 and 3), and two new terpenoid derivatives characterized, respectively, as 2-benzoyl-3,3-dimethyl-4R,6S-bis-(3-methylbut-2-enyl)-cyclohexanone (4a) and 2-benzoyl-3,3-dimethyl-4S,6R-bis-(3-methylbut-2-enyl)-cyclohexanone (4b), were isolated from a related species, H. galioides Lam. The chemical structures were established using 2D-NMR spectroscopy and mass spectrometry. These compounds were evaluated in vitro for antimicrobial activity against a panel of pathogenic microorganisms and anti-inflammatory activity through inhibition of COX-1, COX-2, and 5-LOX catalyzed LTB4 formation.
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Affiliation(s)
- Sara L. Crockett
- Department of Pharmacognosy, Institute of Pharmaceutical Sciences, University of GrazGraz, Austria
| | - Olaf Kunert
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences, University of GrazGraz, Austria
| | | | - Melissa Jacob
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, UniversityMS, USA
| | - Wolfgang Schuehly
- Department of Pharmacognosy, Institute of Pharmaceutical Sciences, University of GrazGraz, Austria
| | - Rudolf Bauer
- Department of Pharmacognosy, Institute of Pharmaceutical Sciences, University of GrazGraz, Austria
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24
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Cho YC, Cho S. c-Jun N-terminal kinase-mediated anti-inflammatory effects of Garcinia subelliptica in macrophages. Mol Med Rep 2016; 13:2293-300. [PMID: 26781201 DOI: 10.3892/mmr.2016.4791] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 12/23/2015] [Indexed: 11/06/2022] Open
Abstract
Garcinia plants have been traditionally used to treat inflammatory diseases, such as skin infections and pain, in many regions including South‑East Asia. Garcinia subelliptica, a plant of the Garcinia species widely distributed from Japan to Thailand, has been reported to contain components similar to other Garcinia plants that exhibit anti‑inflammatory effects. The present study aimed to explore the anti‑inflammatory effects of ethanol extracts of Garcinia subelliptica (EGS) in macrophages, as there are no previous systemic studies that have investigated the effects of Garcinia subelliptica on inflammation. Non‑cytotoxic concentrations of EGS (≤200 µg/ml) were observed to reduce nitric oxide production by modulating iNOS expression in lipopolysaccharide (LPS)‑stimulated RAW 264.7 macrophages. The expression of cyclooxygenase‑2, the enzyme responsible for the production of prostaglandin E2, was notably reduced by EGS. EGS treatment inhibited the production of pro‑inflammatory cytokines, including IL‑6 and IL‑1β, however, not TNF‑α. Reduced production of inflammatory mediators by EGS was followed by reduced phosphorylation of c‑Jun N‑terminal kinase (JNK) however, not of other mitogen‑activated protein kinases and nuclear factor‑κB. These results indicate that EGS selectively inhibits the excessive production of inflammatory mediators in LPS‑stimulated murine macrophages by reducing the activation of JNK, suggesting that EGS is a candidate for modulating severe inflammation.
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Affiliation(s)
- Young-Chang Cho
- Laboratory of Molecular and Pharmacological Cell Biology, College of Pharmacy, Chung‑Ang University, Seoul 156‑756, Republic of Korea
| | - Sayeon Cho
- Laboratory of Molecular and Pharmacological Cell Biology, College of Pharmacy, Chung‑Ang University, Seoul 156‑756, Republic of Korea
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25
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Sukandar ER, Ersam T, Fatmawati S, Siripong P, Aree T, Tip-pyang S. Cylindroxanthones A-C, three new xanthones and their cytotoxicity from the stem bark of Garcinia cylindrocarpa. Fitoterapia 2015; 108:62-5. [PMID: 26611370 DOI: 10.1016/j.fitote.2015.11.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 11/17/2015] [Accepted: 11/19/2015] [Indexed: 11/19/2022]
Abstract
Three new xanthones, cylindroxanthones A-C (1-3), were isolated from the stem bark of Garcinia cylindrocarpa. The structures were established on the basis of spectroscopic analysis. The molecular structure of 1 was unequivocally confirmed by single-crystal X-ray diffraction analysis. These three xanthones were evaluated regarding their cytotoxicity against KB, HeLa S-3, HT-29, MCF-7, and Hep G2 cancer cell lines. Compound 1 exhibited good cytotoxicity against KB cell with IC50 value of 2.36 μM.
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Affiliation(s)
- Edwin Risky Sukandar
- Natural Products Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Natural Products and Synthesis Chemistry Research Laboratory, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Sepuluh Nopember, Kampus ITS-Sukolilo, Surabaya 60111, Indonesia
| | - Taslim Ersam
- Natural Products and Synthesis Chemistry Research Laboratory, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Sepuluh Nopember, Kampus ITS-Sukolilo, Surabaya 60111, Indonesia.
| | - Sri Fatmawati
- Natural Products and Synthesis Chemistry Research Laboratory, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Sepuluh Nopember, Kampus ITS-Sukolilo, Surabaya 60111, Indonesia
| | - Pongpun Siripong
- Natural Products Research Section, Research Division, National Cancer Institute, Bangkok 10400, Thailand
| | - Thammarat Aree
- Natural Products Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Santi Tip-pyang
- Natural Products Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
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27
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Garcinielliptone FC: Antiparasitic activity without cytotoxicity to mammalian cells. Toxicol In Vitro 2015; 29:681-7. [DOI: 10.1016/j.tiv.2014.12.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 11/19/2014] [Accepted: 12/19/2014] [Indexed: 11/22/2022]
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28
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Ting CW, Hwang TL, Chen IS, Cheng MJ, Sung PJ, Yen MH, Chen JJ. Garcimultiflorone G, a novel benzoylphloroglucinol derivative from Garcinia multiflora with inhibitory activity on neutrophil pro-inflammatory responses. Chem Biodivers 2015; 11:819-24. [PMID: 24827693 DOI: 10.1002/cbdv.201300278] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Indexed: 11/07/2022]
Abstract
A novel benzoylphloroglucinol derivative, garcimultiflorone G (1), was isolated from the fruits of Garcinia multiflora. The structure of 1 was determined through extensive 1D- and 2D-NMR, and MS analyses. Garcimultiflorone G (1) showed inhibitory effects against superoxide anion (O·2(-) generation and elastase release by human neutrophils in response to formyl-L-methionyl-L-leucyl-L-phenylalanine/cytochalasin B (fMLP/CB), with IC50 values of 6.97 ± 1.56 and 11.70 ± 1.58 μM, respectively.
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Affiliation(s)
- Chia-Wei Ting
- Faculty of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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29
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Arcanjo DDR, Costa-Júnior JSD, Moura LHP, Ferraz ABF, Rossatto RR, David JM, Quintans-Júnior LJ, Oliveira RDCM, Citó AMDGL, Oliveira APD. Garcinielliptone FC, a polyisoprenylated benzophenone fromPlatonia insignisMart., promotes vasorelaxant effect on rat mesenteric artery. Nat Prod Res 2014; 28:923-7. [DOI: 10.1080/14786419.2014.889136] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Sen T, Samanta SK. Medicinal plants, human health and biodiversity: a broad review. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2014; 147:59-110. [PMID: 25001990 DOI: 10.1007/10_2014_273] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Biodiversity contributes significantly towards human livelihood and development and thus plays a predominant role in the well being of the global population. According to WHO reports, around 80 % of the global population still relies on botanical drugs; today several medicines owe their origin to medicinal plants. Natural substances have long served as sources of therapeutic drugs, where drugs including digitalis (from foxglove), ergotamine (from contaminated rye), quinine (from cinchona), and salicylates (willow bark) can be cited as some classical examples.Drug discovery from natural sources involve a multifaceted approach combining botanical, phytochemical, biological, and molecular techniques. Accordingly, medicinal-plant-based drug discovery still remains an important area, hitherto unexplored, where a systematic search may definitely provide important leads against various pharmacological targets.Ironically, the potential benefits of plant-based medicines have led to unscientific exploitation of the natural resources, a phenomenon that is being observed globally. This decline in biodiversity is largely the result of the rise in the global population, rapid and sometimes unplanned industrialization, indiscriminate deforestation, overexploitation of natural resources, pollution, and finally global climate change.Therefore, it is of utmost importance that plant biodiversity be preserved, to provide future structural diversity and lead compounds for the sustainable development of human civilization at large. This becomes even more important for developing nations, where well-planned bioprospecting coupled with nondestructive commercialization could help in the conservation of biodiversity, ultimately benefiting mankind in the long run.Based on these findings, the present review is an attempt to update our knowledge about the diverse therapeutic application of different plant products against various pharmacological targets including cancer, human brain, cardiovascular function, microbial infection, inflammation, pain, and many more.
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Affiliation(s)
- Tuhinadri Sen
- Department of Pharmaceutical Technology and School of Natural Product Studies, Jadavpur University, Kolkata, 700032, India,
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31
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Wang Q, Kuang H, Su Y, Sun Y, Feng J, Guo R, Chan K. Naturally derived anti-inflammatory compounds from Chinese medicinal plants. JOURNAL OF ETHNOPHARMACOLOGY 2013; 146:9-39. [PMID: 23274744 DOI: 10.1016/j.jep.2012.12.013] [Citation(s) in RCA: 157] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 12/06/2012] [Accepted: 12/10/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Though inflammatory response is beneficial to body damage repair, if it is out of control, it can produce adverse effects on the body. Although purely western anti-inflammatory drugs, orthodox medicines, can control inflammation occurrence and development, it is not enough. The clinical efficacy of anti-inflammation therapies is unsatisfactory, thus the search for new anti-inflammation continues. Chinese Material Medica (CMM) remains a promising source of new therapeutic agents. CMM and herbal formulae from Traditional Chinese Medicine (TCM), unorthodox medicines, play an improtant anti-inflammatory role in multi-targets, multi-levels, and multi-ways in treating inflammation diseases in a long history in China, based on their multi-active ingredient characteristics. Due to these reasons, recently, CMM has been commercialized as an anti-inflammation agent which has become increasingly popular in the world health drug markets. Major research contributions in ethnopharmacology have generated vast amount of data associated with CMM in anti-inflammtion aspect. Therefore, a systematic introduction of CMM anti-inflammatory research progress is of great importance and necessity. AIM OF THE STUDY This paper strives to describe the progress of CMM in the treatment of inflammatory diseases from different aspects, and provide the essential theoretical support and scientific evidence for the further development and utilization of CMM resources as a potential anti-inflammation drug through a variety of databases. MATERIAL AND METHODS Literature survey was performed via electronic search (SciFinder®, Pubmed®, Google Scholar and Web of Science) on papers and patents and by systematic research in ethnopharmacological literature at various university libraries. RESULTS This review mainly introduced the current research on the anti-inflammatory active ingredient, anti-inflammatory effects of CMM, their mechanism, anti-inflammatory drug development of CMM, and toxicological information. CONCLUSION CMM is used clinically to treat inflammation symptoms in TCM, and its effect is mediated by multiple targets through multiple active ingredients. Although scholars around the world have made studies on the anti-inflammatory studies of CMM from different pathways and aspects and have made substantial progress, further studies are warranted to delineate the inflammation actions in more cogency models, establish the toxicological profiles and quality standards, assess the potentials of CMM in clinical applications, and make more convenient preparations easy to administrate for patients. Development of the clinically anti-inflammatory drugs are also warranted.
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Affiliation(s)
- Qiuhong Wang
- Key Laboratory of Ministry of Education, Department of Pharmacology, Heilongjiang University of Chinese Medicine, Harbin, China
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Costa Júnior JS, de Almeida AAC, Ferraz ADBF, Rossatto RR, Silva TG, Silva PB, Militão GC, Citó AMDGL, Santana LCLR, Carvalho FADA, Freitas RM. Cytotoxic and leishmanicidal properties of garcinielliptone FC, a prenylated benzophenone fromPlatonia insignis. Nat Prod Res 2013; 27:470-4. [DOI: 10.1080/14786419.2012.695363] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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33
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Mehta G, Bera MK. An approach toward the synthesis of PPAP natural product garsubellin A: construction of the tricyclic core. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.12.066] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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34
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Comparison of the cytotoxic effects of enantiopure PPAPs, including nemorosone and clusianone. Bioorg Med Chem Lett 2012; 22:6144-7. [DOI: 10.1016/j.bmcl.2012.08.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 07/31/2012] [Accepted: 08/03/2012] [Indexed: 11/22/2022]
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35
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Costa Júnior JS, Ferraz AB, Sousa TO, Silva RA, De Lima SG, Feitosa CM, Citó AM, Melo Cavalcante AA, Freitas RM, Moura Sperotto AR, Péres VF, Moura DJ, Saffi J. Investigation of Biological Activities of Dichloromethane and Ethyl Acetate Fractions ofPlatonia insignisMart. Seed. Basic Clin Pharmacol Toxicol 2012; 112:34-41. [DOI: 10.1111/j.1742-7843.2012.00924.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2012] [Accepted: 07/03/2012] [Indexed: 11/30/2022]
Affiliation(s)
| | - Alexandre B.F. Ferraz
- Post-Graduation Programme in Genetics and Applied Toxicology; Lutheran University of Brazil; Canoas; RS; Brazil
| | - Taciana O. Sousa
- Department of Chemistry; Federal Institute of Piaui; Teresina; PI; Brazil
| | - Romézio A.C. Silva
- Department of Chemistry; Federal Institute of Piaui; Teresina; PI; Brazil
| | - Sidney G. De Lima
- Department of Chemistry; Federal University of Piaui; Teresina; PI; Brazil
| | | | | | - Ana A.C. Melo Cavalcante
- Post-Graduation Programme in Pharmaceutics Science; Federal University of Piaui; Teresina; PI; Brazil
| | - Rivelilson M. Freitas
- Post-Graduation Programme in Pharmaceutics Science; Federal University of Piaui; Teresina; PI; Brazil
| | - Angelo R. Moura Sperotto
- Laboratory of Genetic Toxicology; Department of Basic Health Sciences; Federal University of Health Sciences of Porto Alegre; Porto Alegre; RS; Brazil
| | - Valéria F. Péres
- Laboratory of Genetic Toxicology; Department of Basic Health Sciences; Federal University of Health Sciences of Porto Alegre; Porto Alegre; RS; Brazil
| | - Dinara J. Moura
- Laboratory of Genetic Toxicology; Department of Basic Health Sciences; Federal University of Health Sciences of Porto Alegre; Porto Alegre; RS; Brazil
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36
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Synthetic studies toward geranylated PPAP natural products oblongifolin A, oblongifolin D, and enervosanone. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.06.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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37
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Ting CW, Hwang TL, Chen IS, Yen MH, Chen JJ. A new benzoylphloroglucinol derivative with an adamantyl skeleton and other constituents from Garcinia multiflora: effects on neutrophil pro-inflammatory responses. Chem Biodivers 2012; 9:99-105. [PMID: 22253107 DOI: 10.1002/cbdv.201100006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A novel benzoylphloroglucinol derivative, garcimultiflorone D (1), with an unusual adamantyl-caged skeleton was isolated from the fruits of Garcinia multiflora, together with four known compounds. The structure of 1 was determined through extensive 1D/2D-NMR and mass-spectrometric analyses. Garcimultiflorone D (1) exhibited inhibitory activities with IC(50) values of 7.21±1.07 and 6.01±0.37 μg/ml against fMLP/CB-induced superoxide anion generation and elastase release, respectively.
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Affiliation(s)
- Chia-Wei Ting
- Faculty of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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38
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Lin KW, Huang AM, Yang SC, Weng JR, Hour TC, Pu YS, Lin CN. Cytotoxic and antioxidant constituents from Garcinia subelliptica. Food Chem 2012; 135:851-9. [PMID: 22868169 DOI: 10.1016/j.foodchem.2012.04.133] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 03/25/2012] [Accepted: 04/26/2012] [Indexed: 10/28/2022]
Abstract
Two new triterpenoids, garcinielliptones Q (1) and S (3), and a new phloroglucinol, garcinielliptone R (2), were isolated from the seed of Garcinia subelliptica. Their structures were established by analysis of their spectroscopic data. Phloroglucinol, garcinielliptone FC (4) from this plant exhibited a significant increase of antiproliferative effect, while 4 combined with cisplatin significantly caused decrease of cell inhibition induced by cisplatin in NTUB1. Exposure of NTUB1 cells to 4 cotreated with cisplatin for significantly decreased the amount of reactive oxygen species (ROS) than that of the total amount generated by 4 and cisplatin. These results suggested that 4 could protect the cisplatin toxicity through reduction of ROS in NTUB1. Phloroglucinols, garcinielliptones, A (5) and F (7), and garsubelline A (6), from this plant, revealed ABTS radical cation scavenging activity and 5 displayed an inhibitory effect on xanthine oxidase. These finding showed that 5-7 may be used as antioxidants.
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Affiliation(s)
- Kai-Wei Lin
- Faculty of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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39
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Ma J, Ji TF, Yang JB, Wang AG, Su YL. Three new phloroglucinol derivatives from Hypericum scabrum. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2012; 14:508-514. [PMID: 22530678 DOI: 10.1080/10286020.2012.680445] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A chemical investigation on the aerial parts of Hypericum scabrum L. resulted in the isolation of three new phloroglucinol derivatives, hyperscabrins A (1), B (2), and C (3), together with one known compound, (2R,3R,4S,6R)-3-methyl-4,6-di(3-methyl-2-butenyl)-2-(2-methyl-1-oxopropyl)-3-(4-methyl-3-pentenyl)-cyclohexanone (4). The structures were elucidated by means of spectroscopic methods, including MS, IR, 1D NMR, and 2D NMR, and the absolute configurations of chiral centers in these phloroglucinol derivatives were determined for the first time by studying their circular dichroism spectra.
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Affiliation(s)
- Jie Ma
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
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40
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Synthetic studies toward the PPAP natural products, prolifenones A and B and hyperforin: an Effenberger cyclization approach. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.07.171] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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41
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Casey BM, Eakin CA, Jiao J, Sadasivam DV, Flowers RA. Corrigendum to Solvent-dependent oxidative coupling of 1-aryl-1,3-dicarbonyls and styrene. Tetrahedron 2010; 66:5720-5726. [PMID: 20806051 PMCID: PMC2928991 DOI: 10.1016/j.tet.2010.05.063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This report describes the scope and mechanism of the solvent-dependent, chemoselective oxidative coupling of 1-aryl-1,3-dicarbonyls with styrene using Ce(IV) reagents. Dihydrofuran derivatives are obtained when reactions are performed in methanol whereas nitrate esters can be selectively synthesized in acetonitrile and methylene chloride. Mechanistic studies are consistent with the rate of solvent-assisted deprotonation of a radical cation intermediate playing an integral role in the selective formation of products.
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Affiliation(s)
- Brian M Casey
- Department of Chemistry, Lehigh University, Bethlehem, PA 18015, USA
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42
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Zhang LJ, Chiou CT, Cheng JJ, Huang HC, Yang Kuo LM, Liao CC, Bastow KF, Lee KH, Kuo YH. Cytotoxic polyisoprenyl benzophenonoids from Garcinia subelliptica. JOURNAL OF NATURAL PRODUCTS 2010; 73:557-62. [PMID: 20232858 PMCID: PMC2860718 DOI: 10.1021/np900620y] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Six new polyisoprenyl benzophenonoids, (+/-)-garcinialiptone A (1, 2), garcinialiptone B (3), (-)-cycloxanthochymol (4), garcinialiptone C (5), and garcinialiptone D (6), along with three known compounds, xanthochymol (7), isoxanthochymol (8), and cycloxanthochymol (9), were isolated from the fruits of Garcinia subelliptica. The structures of 1-6 were elucidated by spectroscopic analysis. Biological evaluation showed that all compounds 1-9 exhibited cytotoxic activity against a small panel of human tumor cell lines (A549, DU145, KB, vincristine-resistant KB).
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MESH Headings
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Benzophenones/chemistry
- Benzophenones/isolation & purification
- Benzophenones/pharmacology
- Drug Resistance, Neoplasm/drug effects
- Drug Screening Assays, Antitumor
- Drugs, Chinese Herbal/chemistry
- Drugs, Chinese Herbal/isolation & purification
- Drugs, Chinese Herbal/pharmacology
- Fruit/chemistry
- Garcinia/chemistry
- Humans
- KB Cells
- Molecular Structure
- Nuclear Magnetic Resonance, Biomolecular
- Plants, Medicinal/chemistry
- Vincristine/pharmacology
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Affiliation(s)
- Li-Jie Zhang
- National Research Institute of Chinese Medicine, Taipei 112, Taiwan
| | - Chun-Tang Chiou
- National Research Institute of Chinese Medicine, Taipei 112, Taiwan
| | - Jing-Jy Cheng
- National Research Institute of Chinese Medicine, Taipei 112, Taiwan
| | - Hui-Chi Huang
- School of Chinese Medicine Resources, China Medical University, Taichung, 404, Taiwan
| | - Li-Ming Yang Kuo
- National Research Institute of Chinese Medicine, Taipei 112, Taiwan
| | - Chia-Chin Liao
- National Research Institute of Chinese Medicine, Taipei 112, Taiwan
| | - Kenneth F. Bastow
- Natural Products Research Laboratories, Division of Medicinal Chemistry and Natural Products, Eshelman School of Pharmacy, University or North Carolina, Chapel Hill, NC 27599-7360
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, Division of Medicinal Chemistry and Natural Products, Eshelman School of Pharmacy, University or North Carolina, Chapel Hill, NC 27599-7360
| | - Yao-Haur Kuo
- National Research Institute of Chinese Medicine, Taipei 112, Taiwan
- Graduate Institute of Integrated Medicine, China Medical University, Taichuang 404, Taiwan
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43
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Phupong W, Nuangnaowarat W, Intereya K, Isaka M. New Prenylated Xanthone from the Branch of Garcinia costata. HETEROCYCLES 2010. [DOI: 10.3987/com-10-12034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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44
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Casey BM, Eakin CA, Jiao J, Sadasivam DV, Flowers RA. Solvent-dependent oxidative coupling of 1-aryl-1,3-dicarbonyls and styrene. Tetrahedron 2009; 65:10762-10768. [PMID: 20625455 PMCID: PMC2898135 DOI: 10.1016/j.tet.2009.06.118] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
This report describes the scope and mechanism of the solvent-dependent, chemoselective oxidative coupling of 1-aryl-1,3-dicarbonyls with styrene using Ce(IV) reagents. Dihydrofuran derivatives are obtained when reactions are performed in methanol whereas alpha-tetralones can be selectively synthesized in acetonitrile and methylene chloride. Mechanistic studies are consistent with the rate of solvent-assisted deprotonation of a radical cation intermediate playing an integral role in the selective formation of products.
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Affiliation(s)
- Brian M Casey
- Department of Chemistry, Lehigh University, Bethlehem, PA 18015, USA
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45
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Gautam R, Jachak SM. Recent developments in anti-inflammatory natural products. Med Res Rev 2009; 29:767-820. [DOI: 10.1002/med.20156] [Citation(s) in RCA: 301] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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46
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Mehta G, Bera MK. Synthetic studies towards the phloroglucin natural product hyperforin: construction of the fully prenylated bicyclic core. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.03.041] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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47
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Chen JJ, Ting CW, Hwang TL, Chen IS. Benzophenone derivatives from the fruits of Garcinia multiflora and their anti-inflammatory activity. JOURNAL OF NATURAL PRODUCTS 2009; 72:253-258. [PMID: 19203247 DOI: 10.1021/np8006364] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Five new benzophenone derivatives, 13,14-didehydoxyisogarcinol (1), garcimultiflorone A (2), garcimultiflorone B (3), 13-hydroxygarcimultiflorone B (4), and garcimultiflorone C (5), have been isolated from the fruits of Garcinia multiflora, together with seven known compounds (6-12). The structures of these new compounds were determined through spectroscopic and MS analyses. 13,14-Didehydoxyisogarcinol (1), garcimultiflorone A (2), garcimultiflorone B (3), and 13-hydroxygarcimultiflorone B (4) exhibited inhibition with an IC(50) range of 0.11-5.58 microM on superoxide anion generation and elastase release by human neutrophils in response to fMet-Leu-Phe/cytochalasin B (fMLP/CB).
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Affiliation(s)
- Jih-Jung Chen
- Graduate Institute of Pharmaceutical Technology, Tajen University, Pingtung 907, Taiwan, Republic of China.
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48
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Yin S, Chen X, Su ZS, Yang SP, Fan CQ, Ding J, Yue JM. Harrisotones A–E, five novel prenylated polyketides with a rare spirocyclic skeleton from Harrisonia perforata. Tetrahedron 2009. [DOI: 10.1016/j.tet.2008.11.068] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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49
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Zhong FF, Chen Y, Yang GZ. Chemical Constituents from the Bark ofGarcinia xanthochymusand Their 1,1-Diphenyl-2-picrylhydrazyl (DPPH) Radical-Scavenging Activities. Helv Chim Acta 2008. [DOI: 10.1002/hlca.200890185] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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50
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Derogis PBMC, Martins FT, de Souza TC, de C Moreira ME, Souza Filho JD, Doriguetto AC, de Souza KRD, Veloso MP, Dos Santos MH. Complete assignment of the 1H and 13C NMR spectra of garciniaphenone and keto-enol equilibrium statements for prenylated benzophenones. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2008; 46:278-282. [PMID: 18236418 DOI: 10.1002/mrc.2166] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
This article reports the structural elucidation by IR, UV and MS spectroscopic data along with 1H and 13C NMR chemical shift assignments of two benzophenones isolated from the fruit pericarp of Garcinia brasiliensis Mart. (Clusiaceae): garciniaphenone, (1R,5S,7S)-3-benzoyl-4-hydroxy-6,6-dimethyl-5,7-di(3-methyl-2-butenyl)bicyclo[3.3.1]non-3-ene-2,9-dione, a novel triprenylated benzophenone; and 7-epi-clusianone, a tetraprenylated benzophenone that has already been extracted from another species of the same family. Furthermore, the keto-enol tautomeric equilibrium at solution-state was described for these compounds by 1D and 2D NMR spectral methods and one attempt to rationalize the different ratios between the noted tautomers was based on stereochemical features.
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Affiliation(s)
- Priscilla B M C Derogis
- Departamento de Farmácia, Universidade Federal de Alfenas-UNIFAL-MG, Rua Gabriel Monteiro da Silva 714, CEP 37130-000, Alfenas, MG, Brazil
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