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Hien NT, Cuc DT, Thuy NTT, Hiep H, Huyen VT, Ai DTT, Nhiem NX. Labdane- type diterpenoids and sesquiterpenes from Curcuma aromatica and their nitric oxide inhibitory activity in lipopolysaccharide-stimulated RAW264.7 macrophages. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2024; 26:387-393. [PMID: 37289576 DOI: 10.1080/10286020.2023.2220273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 05/27/2023] [Accepted: 05/28/2023] [Indexed: 06/10/2023]
Abstract
One new labdane-type diterpenoid, 3β,15-dihydroxylabda-8(17),12E-dien-16,15-olide (1) named curcumatin and twelve known compounds, coronarin D (2), isocoronarin D (3), (E)-labda-8(17),12-diene-15,16-dial (4), zerumin A (5), (E)-labda-8(17),12-dien-15,16-dioic acid (6), furanodiene (7), linderazulene (8), zedoarol (9), zedoarondiol (10), germacrone-1,10-epoxide (11), germacrone-4,5-epoxide (12), and zingiberenol (13) were isolated from the ethanol extract of the roots of Curcuma aromatica Salisb. Their structures were elucidated by 1D-, 2D-NMR spectroscopic analysis, HR-ESI-MS, and comparing with the NMR data reported in the literature. Compounds 2, 5, and 13 significantly inhibited the nitric oxide production effect in LPS-stimulated RAW 264.7 macrophages with IC50 values of 8.8 ± 1.7, 4.0 ± 0.9, and 6.2 ± 0.4 µM, respectively.
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Affiliation(s)
- Nguyen Thi Hien
- Faculty of Natural Resources & Environment, Vietnam National University of Agriculture (VNUA), Hanoi 12406, Vietnam
| | - Dinh Thi Cuc
- Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Hanoi 10072, Vietnam
| | | | - Hoang Hiep
- Faculty of Natural Resources & Environment, Vietnam National University of Agriculture (VNUA), Hanoi 12406, Vietnam
| | - Vu Thi Huyen
- Faculty of Food Science and Technology, VNUA, Hanoi 12406, Vietnam
| | - Doan Thi Thuy Ai
- Faculty of Natural Resources & Environment, Vietnam National University of Agriculture (VNUA), Hanoi 12406, Vietnam
| | - Nguyen Xuan Nhiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Hanoi 10072, Vietnam
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Singh AP, Chitme H, Sharma RK, Kandpal JB, Behera A, Abdel-Wahab BA, Orabi MA, Khateeb MM, Habeeb MS, Bakir MB. A Comprehensive Review on Pharmacologically Active Phyto-Constituents from Hedychium species. Molecules 2023; 28:molecules28073278. [PMID: 37050042 PMCID: PMC10096824 DOI: 10.3390/molecules28073278] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/25/2023] [Accepted: 03/28/2023] [Indexed: 04/14/2023] Open
Abstract
In this review, we describe and discuss the phytoconstituents present in Hedychium species and emphasize their potential as drug candidates. Though they are widely validated in vitro and in vivo models, to date, no efforts have been made to compile in a single review all the pharmacologically active phytoconstituents from Hedychium species, and their pharmacological and toxicity profile. In this study, we present a reinvestigation of the chemical constituents present in Hedychium species obtained from the essential oil and solvent extraction of the flowers, leaves and rhizomes under consideration. Key databases such as PubMed, Science Direct, Scopus, and Google Scholar amongst others were probed for a systematic search using keywords to retrieve relevant publications on this plant. An exhaustive electronic survey of the related literature on Hedychium species resulted in around 200 articles. Articles published between the years 1975-2021 were included. The studies conducted on either crude extracts, solvent fractions or isolated pure compounds from Hedychium species reported with a varied range of biological effects such as anti-inflammatory, analgesic, antidiabetic, potentially anti-asthmatic, and cytotoxic, among other related activities of the chemical constituents present in its essential oil and solvent extract deployed in this review. Traditional and herbal medication around the world that uses different parts of Hedychium species were considered for anti-inflammatory, skincare, analgesic, anti-asthmatic, anti-diabetic, antidotal uses, among others. These uses support the idea that chemical constituents obtained from solvent extraction may also exert the same action individually or in a synergistic manner. The review concluded that there is scope for computation and biological study to find out possible new targets for strengthening the potency and selectivity of the relevant compounds, and to find a commercial method for extraction of active pharmaceutical ingredients.
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Affiliation(s)
- Alok Pratap Singh
- Faculty of Pharmacy, DIT University, Dehradun 248009, Uttarakhand, India
- Department of Research and Development, India Glycols Ltd., Pharma City, Selaqui, Dehradun 248009, Uttarakhand, India
| | - Havagiray Chitme
- Faculty of Pharmacy, DIT University, Dehradun 248009, Uttarakhand, India
| | | | - J B Kandpal
- Department of Research and Development, India Glycols Ltd., Pharma City, Selaqui, Dehradun 248009, Uttarakhand, India
| | - Ashok Behera
- Faculty of Pharmacy, DIT University, Dehradun 248009, Uttarakhand, India
| | - Basel A Abdel-Wahab
- Department of Pharmacology, College of Pharmacy, Najran University, Najran P.O. Box 1988, Saudi Arabia
| | - Mohammed Abdelmalek Orabi
- Department of Pharmacognosy, College of Pharmacy, Najran University, Najran P.O. Box 1988, Saudi Arabia
| | - Masood Medleri Khateeb
- Department of Pharmacology, College of Pharmacy, Najran University, Najran P.O. Box 1988, Saudi Arabia
| | | | - Marwa B Bakir
- Department of Pharmacology, College of Medicine Najran University, Najran P.O. Box 1988, Saudi Arabia
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Acquaviva R, Malfa GA, Loizzo MR, Xiao J, Bianchi S, Tundis R. Advances on Natural Abietane, Labdane and Clerodane Diterpenes as Anti-Cancer Agents: Sources and Mechanisms of Action. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27154791. [PMID: 35897965 PMCID: PMC9330018 DOI: 10.3390/molecules27154791] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/18/2022] [Accepted: 07/25/2022] [Indexed: 01/14/2023]
Abstract
Extensive research over the past decades has identified numerous phytochemicals that could represent an important source of anti-cancer compounds. There is an immediate need for less toxic and more effective preventive and therapeutic strategies for the treatment of cancer. Natural compounds are considered suitable candidates for the development of new anti-cancer drugs due to their pleiotropic actions on target events with multiple manners. This comprehensive review highlighted the most relevant findings achieved in the screening of phytochemicals for anticancer drug development, particularly focused on a promising class of phytochemicals such as diterpenes with abietane, clerodane, and labdane skeleton. The chemical structure of these compounds, their main natural sources, and mechanisms of action were critically discussed.
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Affiliation(s)
- Rosaria Acquaviva
- Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy; (R.A.); (S.B.)
- CERNUT, Research Centre on Nutraceuticals and Health Products, Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy
| | - Giuseppe A. Malfa
- Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy; (R.A.); (S.B.)
- CERNUT, Research Centre on Nutraceuticals and Health Products, Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy
- Correspondence:
| | - Monica R. Loizzo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy; (M.R.L.); (R.T.)
| | - Jianbo Xiao
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Sciences, Universidade de Vigo, 32004 Ourense, Spain;
| | - Simone Bianchi
- Department of Drug and Health Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy; (R.A.); (S.B.)
| | - Rosa Tundis
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy; (M.R.L.); (R.T.)
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4
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Otsuka S, Kawamura M, Fujino S, Nakamura F, Arai D, Fusetani N, Nakao Y. Coronarin D, a Metabolite from the Wild Turmeric, Curcuma aromatica, Promotes the Differentiation of Neural Stem Cells into Astrocytes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:3300-3309. [PMID: 35245031 PMCID: PMC8931754 DOI: 10.1021/acs.jafc.2c00020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Plants in the genus Curcuma have been widely used as traditional medicines in Asian countries. These plants contain bioactive compounds with neuroprotective properties or activities that increase neural stem cells (NSCs) and neurons. However, bioactive components in Curcuma that promote the differentiation of NSCs into astrocytes have not yet been reported. Here, the effects of Curcuma extracts on the in vitro differentiation of embryonic stem-cell-derived NSCs were evaluated. The extract of the wild turmeric, Curcuma aromatica, strongly promoted the differentiation of NSCs into astrocytes. Bioassay-guided isolation yielded coronarins C (1) and D (2), as well as (E)-labda-8(17),12-diene-15,16-dial (3) as the bioactive compounds. Coronarin D (2) markedly promoted the differentiation of NSCs into astrocytes up to approximately 4 times (3.64 ± 0.48) and increased the expression level of GFAP at the mRNA and protein level, while compounds 1 and 3 exhibited only weak effects, suggesting that the 15-hydroxy-Δ12-γ-lactone moiety is important for bioactivity. Moreover, compound 2 increased the number of pSTAT3-positive cells, suggesting that compound 2 promoted astrocytic differentiation through JAK/STAT signaling pathway.
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Affiliation(s)
- Satoshi Otsuka
- Department
of Chemistry and Biochemistry, Graduate School of Advanced Science
and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
- Research
Institute for Science and Engineering, Waseda
University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Midori Kawamura
- Department
of Chemistry and Biochemistry, Graduate School of Advanced Science
and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Shutaro Fujino
- Department
of Chemistry and Biochemistry, Graduate School of Advanced Science
and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Fumiaki Nakamura
- Department
of Chemistry and Biochemistry, Graduate School of Advanced Science
and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Daisuke Arai
- Department
of Chemistry and Biochemistry, Graduate School of Advanced Science
and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Nobuhiro Fusetani
- Research
Institute for Science and Engineering, Waseda
University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
- Fisheries
and Oceans Hakodate, 3-1-1 Minato-cho, Hakodate 041-8611, Japan
| | - Yoichi Nakao
- Department
of Chemistry and Biochemistry, Graduate School of Advanced Science
and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
- Research
Institute for Science and Engineering, Waseda
University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
- . Tel: +81-3-5286-3100
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Subramanyan S, Deepika S, Ajith A, Joseph Gracy A, Dan M, Maiti KK, Varma RL, Radhakrishnan KV. Antiproliferative labdane diterpenes from the rhizomes of Hedychium flavescens Carey ex Roscoe. Chem Biol Drug Des 2021; 98:501-506. [PMID: 34143941 DOI: 10.1111/cbdd.13906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 02/12/2021] [Accepted: 06/06/2021] [Indexed: 12/01/2022]
Abstract
Antiproliferative activity was confirmed in the various extracts of rhizomes of Hedychium flavescens (Zingiberaceae). The phytochemical investigation of the rhizomes of Hedychium flavescens led to the isolation of four labdane diterpenes. Their structures were established as coronarin E (1), C-14 epimers of isocoronarin D (2), C-15 epimers of coronarin D methyl ether (3) and isocoronarin D (4). The structure of the compounds was identified based on spectroscopic analysis and on comparison with literature reports. All these compounds were assessed for their in vitro cytotoxicity against human lung adenocarcinoma (A549) cell line and showed significant cytotoxicity as reflected in IC50 value, that is, 0.52, 0.59, 0.68 and 1.22 μM compared with the control doxorubicin (IC50 0.92 μM). Moreover, all the compounds were nontoxic towards the normal lung fibroblast (WI-38) cells. The chemo-profiling and cytotoxicity study of Hedychium flavescens is reported for the first time.
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Affiliation(s)
- Santhi Subramanyan
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, India.,Academy of Scientific and Innovative Research (ACSIR), Ghaziabad, India
| | - Selvakumar Deepika
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, India
| | - Anjitha Ajith
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, India
| | - Anuja Joseph Gracy
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, India.,Academy of Scientific and Innovative Research (ACSIR), Ghaziabad, India.,Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Thiruvananthapuram, India
| | - Mathew Dan
- Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Thiruvananthapuram, India
| | - Kaustabh Kumar Maiti
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, India.,Academy of Scientific and Innovative Research (ACSIR), Ghaziabad, India
| | - Ramavarma Luxmi Varma
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, India.,Academy of Scientific and Innovative Research (ACSIR), Ghaziabad, India
| | - Kokkuvayil Vasu Radhakrishnan
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, India.,Academy of Scientific and Innovative Research (ACSIR), Ghaziabad, India
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6
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Singamaneni V, Lone B, Singh J, Kumar P, Gairola S, Singh S, Gupta P. Coronarin K and L: Two Novel Labdane Diterpenes From Roscoea purpurea: An Ayurvedic Crude Drug. Front Chem 2021; 9:642073. [PMID: 33968897 PMCID: PMC8097143 DOI: 10.3389/fchem.2021.642073] [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: 12/15/2020] [Accepted: 03/25/2021] [Indexed: 11/13/2022] Open
Abstract
The main objective of cancer treatment with chemotherapy is to kill the cancerous cells without affecting the healthy normal cells. In the present study, bioactivity-guided purification of the n-chloroform soluble fraction from the methanol extract of Roscoea purpurea resulted in the identification of two new labdane diterpenes: coronarin K (1) and coronarin L (2), along with eight known compounds, coronarin A (3), bisdemethoxycurcumin (4), kaempferol 3-O-methyl ether (5), kaempferol (6), fenozan acid (7), 3-(3-methoxy,4-hydroxyphenyl)-2-propenoic acid ferulic acid (8), caffeic acid (9), and gallic acid (10). The structural identification of new compounds (1 and 2) were determined by detailed analysis of 1D (1H and 13C) and 2D NMR (COSY, HSQC, and HMBC) spectroscopic data. The relative configurations of 1 and 2 were determined with the help of NOESY correlations and comparison of optical rotations with known labdane diterpenes, with established stereochemistry, while structure of known compounds was established by direct comparison of their NMR data with those reported in the literature. This is the first report of isolation of this labdane diterpenes and phenolic classes of secondary metabolites in R. purpurea. In the preliminary screening, the methanol extract and its fractions were tested for the cytotoxic activity against a panel of four cancer cell lines (A549, HCT-116, Bxpc-3, and MCF-7); extract and its chloroform fraction were found to be active against the lung cancer cell line, A-549, with IC50 value <25 μg/ml. Owing to the notable cytotoxic activity of the chloroform fraction, the compounds (1-5) were screened for their cytotoxicity against all the cell lines by MTT assay. Coronarin K, 1 showed significant cytotoxic potential against lung cancer cell lines (A-549), with IC50 value of 13.49 μM, while other compounds did not show activity below 22 μM.
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Affiliation(s)
- Venugopal Singamaneni
- Natural Product and Medicinal Chemistry Division, Indian Institute of Integrative Medicine, Jammu, India
| | - Bashir Lone
- Natural Product and Medicinal Chemistry Division, Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific & Innovative Research (AcSIR), Council of Scientific and Industrial Research, New Delhi, India
| | - Jasvinder Singh
- Academy of Scientific & Innovative Research (AcSIR), Council of Scientific and Industrial Research, New Delhi, India.,Cancer Pharmacology Division, Indian Institute of Integrative Medicine, Jammu, India
| | - Pankaj Kumar
- Academy of Scientific & Innovative Research (AcSIR), Council of Scientific and Industrial Research, New Delhi, India.,Plant Science Division, Indian Institute of Integrative Medicine, Jammu, India
| | - Sumeet Gairola
- Academy of Scientific & Innovative Research (AcSIR), Council of Scientific and Industrial Research, New Delhi, India.,Plant Science Division, Indian Institute of Integrative Medicine, Jammu, India
| | - Shashank Singh
- Academy of Scientific & Innovative Research (AcSIR), Council of Scientific and Industrial Research, New Delhi, India.,Cancer Pharmacology Division, Indian Institute of Integrative Medicine, Jammu, India
| | - Prasoon Gupta
- Natural Product and Medicinal Chemistry Division, Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific & Innovative Research (AcSIR), Council of Scientific and Industrial Research, New Delhi, India
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7
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Dembitsky VM, Ermolenko E, Savidov N, Gloriozova TA, Poroikov VV. Antiprotozoal and Antitumor Activity of Natural Polycyclic Endoperoxides: Origin, Structures and Biological Activity. Molecules 2021; 26:686. [PMID: 33525706 PMCID: PMC7865715 DOI: 10.3390/molecules26030686] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/20/2021] [Accepted: 01/25/2021] [Indexed: 02/08/2023] Open
Abstract
Polycyclic endoperoxides are rare natural metabolites found and isolated in plants, fungi, and marine invertebrates. The purpose of this review is a comparative analysis of the pharmacological potential of these natural products. According to PASS (Prediction of Activity Spectra for Substances) estimates, they are more likely to exhibit antiprotozoal and antitumor properties. Some of them are now widely used in clinical medicine. All polycyclic endoperoxides presented in this article demonstrate antiprotozoal activity and can be divided into three groups. The third group includes endoperoxides, which show weak antiprotozoal activity with a reliability of up to 70%, and this group includes only 1.1% of metabolites. The second group includes the largest number of endoperoxides, which are 65% and show average antiprotozoal activity with a confidence level of 70 to 90%. Lastly, the third group includes endoperoxides, which are 33.9% and show strong antiprotozoal activity with a confidence level of 90 to 99.6%. Interestingly, artemisinin and its analogs show strong antiprotozoal activity with 79 to 99.6% confidence against obligate intracellular parasites which belong to the genera Plasmodium, Toxoplasma, Leishmania, and Coccidia. In addition to antiprotozoal activities, polycyclic endoperoxides show antitumor activity in the proportion: 4.6% show weak activity with a reliability of up to 70%, 65.6% show an average activity with a reliability of 70 to 90%, and 29.8% show strong activity with a reliability of 90 to 98.3%. It should also be noted that some polycyclic endoperoxides, in addition to antiprotozoal and antitumor properties, show other strong activities with a confidence level of 90 to 97%. These include antifungal activity against the genera Aspergillus, Candida, and Cryptococcus, as well as anti-inflammatory activity. This review provides insights on further utilization of polycyclic endoperoxides by medicinal chemists, pharmacologists, and the pharmaceutical industry.
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Affiliation(s)
- Valery M. Dembitsky
- Centre for Applied Research, Innovation and Entrepreneurship, Lethbridge College, 3000 College Drive South, Lethbridge, AB T1K 1L6, Canada;
- A.V. Zhirmunsky National Scientific Center of Marine Biology, 17 Palchevsky Str., 690041 Vladivostok, Russia;
| | - Ekaterina Ermolenko
- A.V. Zhirmunsky National Scientific Center of Marine Biology, 17 Palchevsky Str., 690041 Vladivostok, Russia;
| | - Nick Savidov
- Centre for Applied Research, Innovation and Entrepreneurship, Lethbridge College, 3000 College Drive South, Lethbridge, AB T1K 1L6, Canada;
| | - Tatyana A. Gloriozova
- Institute of Biomedical Chemistry, 10 Pogodinskaya Str., 119121 Moscow, Russia; (T.A.G.); (V.V.P.)
| | - Vladimir V. Poroikov
- Institute of Biomedical Chemistry, 10 Pogodinskaya Str., 119121 Moscow, Russia; (T.A.G.); (V.V.P.)
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8
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Bioactive Compounds from Medicinal Plants in Myanmar. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2021; 114:135-251. [PMID: 33792861 DOI: 10.1007/978-3-030-59444-2_2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Myanmar is a country with rich natural resources and of these, medicinal plants play a vital role in the primary health care of its population. The people of Myanmar have used their own system of traditional medicine inclusive of the use of medicinal plants for 2000 years. However, systematic and scientific studies have only recently begun to be reported. Researchers from Japan, Germany, and Korea have collaborated with researchers in Myanmar on medicinal plants since 2000. During the past two decades, over 50 publications have been published in peer-reviewed journals. Altogether, 433 phytoconstituents, including 147 new and 286 known compounds from 26 plant species consisting of 29 samples native to Myanmar, have been collated. In this contribution, phytochemical and biological investigations of these plants, including information on traditional knowledge are compiled and discussed.
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9
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Bailly C. Anticancer activities and mechanism of action of the labdane diterpene coronarin D. Pathol Res Pract 2020; 216:152946. [DOI: 10.1016/j.prp.2020.152946] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/21/2020] [Accepted: 03/23/2020] [Indexed: 12/12/2022]
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10
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Clerodane Diterpenoids from Callicarpa hypoleucophylla and Their Anti-Inflammatory Activity. Molecules 2020; 25:molecules25102288. [PMID: 32414033 PMCID: PMC7287842 DOI: 10.3390/molecules25102288] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/08/2020] [Accepted: 05/12/2020] [Indexed: 02/02/2023] Open
Abstract
Plants of the genus Callicarpa are known to possess several medicinal effects. The constituents of the Taiwan endemic plant Callicarpa hypoleucophylla have never been studied. Therefore, C. hypoleucophylla was selected for our phytochemical investigation. Two new clerodane-type diterpenoids, named callihypolins A (1) and B (2), along with seven known compounds were isolated from the leaves and twigs of the Lamiaceae plant C. hypoleucophylla and then characterized. The structures of compounds 1 and 2 were elucidated by spectroscopic data analysis, specifically, two-dimension nuclear magnetic resonance (NMR). The anti-inflammatory activity of compounds 1-9 based on the suppression of superoxide anion generation and elastase release was evaluated. Among the isolates, compounds 2-4 showed anti-inflammatory activity (9.52-32.48% inhibition at the concentration 10 μm) by suppressing superoxide anion generation and elastase release. Our findings not only expand the description of the structural diversity of the compounds present in plants of the genus Callicarpa but also highlight the possibility of developing anti-inflammatory agents from Callicarpa endemic species.
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11
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Adamkiewicz A, Węglarz I, Butkiewicz A, Woyciechowska M, Mlynarski J. Lewis Acid‐Catalyzed Stereoselective α‐Addition of Chiral Aldehydes to Cyclic Dienol Silanes: Aqueous Synthesis of Chiral Butenolides. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Anna Adamkiewicz
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Krakow Poland
| | - Izabela Węglarz
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 Warsaw Poland
| | - Aleksandra Butkiewicz
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 Warsaw Poland
| | - Marta Woyciechowska
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Krakow Poland
| | - Jacek Mlynarski
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 Warsaw Poland
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12
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Móricz ÁM, Jamshidi-Aidji M, Krüzselyi D, Darcsi A, Böszörményi A, Csontos P, Béni S, Ott PG, Morlock GE. Distinction and valorization of 30 root extracts of five goldenrod (Solidago) species. J Chromatogr A 2020; 1611:460602. [DOI: 10.1016/j.chroma.2019.460602] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/03/2019] [Accepted: 10/05/2019] [Indexed: 12/13/2022]
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13
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Coronarin D Induces Apoptotic Cell Death and Cell Cycle Arrest in Human Glioblastoma Cell Line. Molecules 2019; 24:molecules24244498. [PMID: 31818017 PMCID: PMC6943529 DOI: 10.3390/molecules24244498] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 11/18/2019] [Accepted: 11/21/2019] [Indexed: 12/25/2022] Open
Abstract
Glioblastoma (GBM) is the most frequent and highest-grade brain tumor in adults. The prognosis is still poor despite the use of combined therapy involving maximal surgical resection, radiotherapy, and chemotherapy. The development of more efficient drugs without noticeable side effects is urgent. Coronarin D is a diterpene obtained from the rhizome extract of Hedychium coronarium, classified as a labdane with several biological activities, principally anticancer potential. The aim of the present study was to determine the anti-cancer properties of Coronarin D in the glioblastoma cell line and further elucidate the underlying molecular mechanisms. Coronarin D potently suppressed cell viability in glioblastoma U-251 cell line, and also induced G1 arrest by reducing p21 protein and histone H2AX phosphorylation, leading to DNA damage and apoptosis. Further studies showed that Coronarin D increased the production of reactive oxygen species, lead to mitochondrial membrane potential depolarization, and subsequently activated caspases and ERK phosphorylation, major mechanisms involved in apoptosis. To our knowledge, this is the first analysis referring to this compound on the glioma cell line. These findings highlight the antiproliferative activity of Coronarin D against glioblastoma cell line U-251 and provide a basis for further investigation on its antineoplastic activity on brain cancer.
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Balbinot RB, de Oliveira JAM, Bernardi DI, Melo UZ, Zanqueta ÉB, Endo EH, Ribeiro FM, Volpato H, Figueiredo MC, Back DF, Basso EA, Ruiz ALTG, de Carvalho JE, Foglio MA, Prado Filho BD, Nakamura TU, Nakamura CV, do Carmo MRB, Sarragiotto MH, Baldoqui DC. Structural Characterization and Biological Evaluation of 18‐Nor‐
ent
‐labdane Diterpenoids from
Grazielia gaudichaudeana. Chem Biodivers 2019; 16:e1800644. [DOI: 10.1002/cbdv.201800644] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 03/04/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Rodolfo B. Balbinot
- Departamento de QuímicaUniversidade Estadual de Maringá Av. Colombo 5790 87020-900 Maringá, Paraná Brazil
| | - Josiane A. M. de Oliveira
- Departamento de QuímicaUniversidade Estadual de Maringá Av. Colombo 5790 87020-900 Maringá, Paraná Brazil
| | - Darlon I. Bernardi
- Departamento de QuímicaUniversidade Estadual de Maringá Av. Colombo 5790 87020-900 Maringá, Paraná Brazil
| | - Ulisses Z. Melo
- Departamento de QuímicaUniversidade Estadual de Maringá Av. Colombo 5790 87020-900 Maringá, Paraná Brazil
| | - Érica B. Zanqueta
- Programa de Pós-Graduação em Ciências FarmacêuticasUniversidade Estadual de Maringá, Av. Colombo 5790, 87020–900 Maringá, Paraná, Brazil
| | - Eliana H. Endo
- Programa de Pós-Graduação em Ciências FarmacêuticasUniversidade Estadual de Maringá, Av. Colombo 5790, 87020–900 Maringá, Paraná, Brazil
| | - Fabianne M. Ribeiro
- Programa de Pós-Graduação em Ciências BiológicasUniversidade Estadual de Maringá Av. Colombo 5790 87020-900 Maringá, Paraná Brazil
| | - Hélito Volpato
- Programa de Pós-Graduação em Ciências BiológicasUniversidade Estadual de Maringá Av. Colombo 5790 87020-900 Maringá, Paraná Brazil
| | - Mariana C. Figueiredo
- Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas (CPQBA)Universidade Estadual de Campinas 13083-970 Campinas São Paulo Brazil
| | - Davi F. Back
- Departamento de QuímicaUniversidade Federal de Santa Maria, Caixa Postal 5031 97105-970 Santa Maria, Rio Grande do Sul Brazil
| | - Ernani A. Basso
- Departamento de QuímicaUniversidade Estadual de Maringá Av. Colombo 5790 87020-900 Maringá, Paraná Brazil
| | - Ana L. T. G. Ruiz
- Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas (CPQBA)Universidade Estadual de Campinas 13083-970 Campinas São Paulo Brazil
| | - João E. de Carvalho
- Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas (CPQBA)Universidade Estadual de Campinas 13083-970 Campinas São Paulo Brazil
| | - Mary Ann Foglio
- Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas (CPQBA)Universidade Estadual de Campinas 13083-970 Campinas São Paulo Brazil
| | - Benedito D. Prado Filho
- Programa de Pós-Graduação em Ciências FarmacêuticasUniversidade Estadual de Maringá, Av. Colombo 5790, 87020–900 Maringá, Paraná, Brazil
| | - Tania U. Nakamura
- Programa de Pós-Graduação em Ciências FarmacêuticasUniversidade Estadual de Maringá, Av. Colombo 5790, 87020–900 Maringá, Paraná, Brazil
| | - Celso V. Nakamura
- Programa de Pós-Graduação em Ciências FarmacêuticasUniversidade Estadual de Maringá, Av. Colombo 5790, 87020–900 Maringá, Paraná, Brazil
- Programa de Pós-Graduação em Ciências BiológicasUniversidade Estadual de Maringá Av. Colombo 5790 87020-900 Maringá, Paraná Brazil
| | - Marta R. B. do Carmo
- Departamento de Biologia GeralUniversidade Estadual de Ponta Grossa Av. Carlos Cavalcanti, 4748 84030-910 Ponta Grossa, Paraná Brazil
| | - Maria H. Sarragiotto
- Departamento de QuímicaUniversidade Estadual de Maringá Av. Colombo 5790 87020-900 Maringá, Paraná Brazil
| | - Debora C. Baldoqui
- Departamento de QuímicaUniversidade Estadual de Maringá Av. Colombo 5790 87020-900 Maringá, Paraná Brazil
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15
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Liu YT, Hsieh MJ, Lin JT, Chen G, Lin CC, Lo YS, Chuang YC, Hsi YT, Chen MK, Chou MC. Coronarin D induces human oral cancer cell apoptosis though upregulate JNK1/2 signaling pathway. ENVIRONMENTAL TOXICOLOGY 2019; 34:513-520. [PMID: 30623577 DOI: 10.1002/tox.22705] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 12/19/2018] [Accepted: 12/26/2018] [Indexed: 06/09/2023]
Abstract
The incidence of oral cancer is increasing all over the world, with rates particularly high in Southeast Asian countries, such as Taiwan. Coronarin D (CD) has been confirmed to have anti-inflammatory, anti-bacterial effects, and anti-apoptotic effects in human hepatocellular carcinoma and nasopharyngeal carcinoma. The purpose of this study is to explore whether CD has a suppression effect on oral cancer cells and the mechanisms involved. The results of our study revealed the significantly decreased cancer cell viability and increased activation of apoptosis via increased loss of mitochondrial membrane potential, increased death receptors, leading to the activation of caspase-8, -9, -3. Moreover, the rate of apoptosis of cells treated with CD plus JNK inhibitors was decreased compared to CD-treated cells. This is the first study to demonstrate that CD induces apoptosis in human oral cancer cells and can be expected to be a promising anticancer agent for oral cancer treatment.
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Affiliation(s)
- Yen-Tze Liu
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Family Medicine, Changhua Christian Hospital, Changhua, Taiwan
- Department of Holistic Wellness, Mingdao University, Changhua, Taiwan
- Oral Cancer Research Center, Changhua Christian Hospital, Changhua, Taiwan
| | - Ming-Ju Hsieh
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Holistic Wellness, Mingdao University, Changhua, Taiwan
- Oral Cancer Research Center, Changhua Christian Hospital, Changhua, Taiwan
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
| | - Jen-Tsun Lin
- Division of Hematology and Oncology, Department of Medicine, Changhua Christian Hospital, Changhua, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Gene Chen
- Southridge School, Surrey, British Columbia, Canada
| | - Chia-Chieh Lin
- Oral Cancer Research Center, Changhua Christian Hospital, Changhua, Taiwan
| | - Yu-Sheng Lo
- Oral Cancer Research Center, Changhua Christian Hospital, Changhua, Taiwan
| | - Yi-Ching Chuang
- Oral Cancer Research Center, Changhua Christian Hospital, Changhua, Taiwan
| | - Yi-Ting Hsi
- Oral Cancer Research Center, Changhua Christian Hospital, Changhua, Taiwan
| | - Mu-Kuan Chen
- Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan
| | - Ming-Chih Chou
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Division of Thoracic Surgery, Department of Surgery, Chung Shan Medical University Hospital, Taichung, Taiwan
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16
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Villamizar J, Salazar F, Fuentes J, Tropper E, Alonso R. Synthesis of (+)-Coronarin E, (-)-7-epi-Coronarin a and (+)-15, 16-Epoxy-8(17), 13(16), 14-Labdatriene from (+)-Manool. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/030823403103174722] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An efficient method for the synthesis of (+)-coronarin E 1, (+)- epi-coronarin A 2 and (+)-15, 16-epoxy-8(17), 13(16), 14-labdatriene 3 via the homodrimane 9, obtained in four steps from (+)-manool 5, is described.
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Affiliation(s)
- José Villamizar
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (I.V.I.C.), Apartado 21827, Caracas, 1020-A, Venezuela
| | - Franklin Salazar
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (I.V.I.C.), Apartado 21827, Caracas, 1020-A, Venezuela
| | - Juan Fuentes
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (I.V.I.C.), Apartado 21827, Caracas, 1020-A, Venezuela
| | - Eleonora Tropper
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (I.V.I.C.), Apartado 21827, Caracas, 1020-A, Venezuela
| | - Randolph Alonso
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (I.V.I.C.), Apartado 21827, Caracas, 1020-A, Venezuela
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17
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Villamizar JE, Juncosa J, Pittelaud J, Hernández M, Canudas N, Tropper E, Salazar F, Fuentes J. Facile Access to Labdane-type Diterpenes: Synthesis of Coronarin C, Zerumin B, Labda-8(17), 13(14)-dien-15,16-olide and derivatives from (+)-manool. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/030823407x225527] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A practical method for the synthesis of optically active labdane-type diterpenes from (+)-manool 8, is described. We prepared the natural labdane-type diterpene 5 via key intermediate peroxide 9 and coronarin C 1, compound 8 and zerumin B 6 via a furan photosensitised oxygenation reactions.
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Affiliation(s)
- José E. Villamizar
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (I.V.I.C.), Apartado 21827, Caracas 1020-A, Venezuela
| | - José Juncosa
- Departamento de Química, Universidad Simón Bolívar, Caracas, Venezuela
| | - Jean Pittelaud
- Departamento de Química, Universidad Simón Bolívar, Caracas, Venezuela
| | | | - Nieves Canudas
- Departamento de Química, Universidad Simón Bolívar, Caracas, Venezuela
| | - Eleonora Tropper
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (I.V.I.C.), Apartado 21827, Caracas 1020-A, Venezuela
| | - Franklin Salazar
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (I.V.I.C.), Apartado 21827, Caracas 1020-A, Venezuela
| | - Juan Fuentes
- Departamento de Química, Universidad Simón Bolívar, Caracas, Venezuela
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18
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Tran QT, Wong WF, Chai CL. Labdane diterpenoids as potential anti-inflammatory agents. Pharmacol Res 2017; 124:43-63. [DOI: 10.1016/j.phrs.2017.07.019] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 07/21/2017] [Accepted: 07/21/2017] [Indexed: 01/20/2023]
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19
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Labdane diterpenoids from Curcuma amada rhizomes collected in Myanmar and their antiproliferative activities. Fitoterapia 2017; 122:34-39. [PMID: 28827004 DOI: 10.1016/j.fitote.2017.08.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 08/15/2017] [Accepted: 08/17/2017] [Indexed: 11/22/2022]
Abstract
Four new labdane diterpenoids, 12β-hydroxy-15-norlabda-8(17),13(14)-dien-16-oic acid (1), (E)-15-ethoxy-15-methoxylabda-8(17),12-dien-16-al (2), (E)-15α-ethoxy-14α-hydroxylabda-8(17),12-dien-16-olide (3), and 15-ethoxy-12β-hydroxylabda-8(17),13(14)-dien-16,15-olide (4) were isolated from the methanol extract of Curcuma amada rhizomes collected in Myanmar, together with 13 known analogs. Their structures were elucidated by extensive spectroscopic techniques. All of the isolates were evaluated for their antiproliferative activities against a small panel of five different human cancer cell lines (A549, human lung cancer; HeLa, human cervical cancer; MCF7, human breast cancer; PANC-1 and PSN-1, human pancreatic cancer). Among the isolates, compounds 2-4, 7, 8, 12, and 17 showed mild antiproliferative activities with IC50 values ranging from 19.7 to 96.1μM. (E)-14-Hydroxy-15-norlabda-8(17),12-dien-16-al (11) exhibited strong antiproliferative activities selectively against HeLa, PANC-1, and PSN-1 cells, with IC50 values of 5.88, 1.00, and 3.98μM, respectively. These potencies were comparable to those of the positive control, 5-fluorouracil.
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20
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Luo P, Xia W, Morris-Natschke SL, Lee KH, Zhao Y, Gu Q, Xu J. Vitepyrroloids A-D, 2-Cyanopyrrole-Containing Labdane Diterpenoid Alkaloids from the Leaves of Vitex trifolia. JOURNAL OF NATURAL PRODUCTS 2017; 80:1679-1683. [PMID: 28453270 PMCID: PMC5520631 DOI: 10.1021/acs.jnatprod.6b01195] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Vitepyrroloids A-D (1-4), four new 2-cyano-substituted pyrrole-ring-containing labdane diterpenoids, were isolated from the leaves of Vitex trifolia. Their structures were elucidated based on spectroscopic data analysis. The absolute configuration of compound 1 was determined by X-ray diffraction. Compounds 1-4 are unprecedented labdane diterpenoids featuring a 2-cyano-substituted pyrrole ring. Compound 1 showed cytotoxic activity against a human nasopharyngeal carcinoma cell line (CNE1) with an IC50 value of 8.7 μM.
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Affiliation(s)
- Pan Luo
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Wenjuan Xia
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Susan L. Morris-Natschke
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599, United States
- Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung 401, Taiwan
| | - Yu Zhao
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
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21
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Philkhana SC, Reddy DS. Total synthesis of natural fregenedadiol and its diacetate, rearranged labdanes with aromatized B ring. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.02.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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22
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Chen LC, Wen ZH, Sung PJ, Shu CW, Kuo WL, Chen PY, Chen JJ. New Labdane-Type Diterpenoid and Cytotoxic Constituents of Hedychium coronarium. Chem Nat Compd 2017. [DOI: 10.1007/s10600-017-1914-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Ma XN, Xie CL, Miao Z, Yang Q, Yang XW. An overview of chemical constituents from Alpinia species in the last six decades. RSC Adv 2017. [DOI: 10.1039/c6ra27830b] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Alpinia species is one of the most important genera of the Zingiberaceae family. Up to 2015, 544 compounds with various bioactivities were isolated, the major components are diarylheptanoids (143) and sesquiterpenoids (132).
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Affiliation(s)
- Xiao-Ni Ma
- State Key Laboratory Breeding Base of Marine Genetic Resources
- Key Laboratory of Marine Genetic Resources
- Fujian Key Laboratory of Marine Genetic Resources
- Third Institute of Oceanography
- State Oceanic Administration
| | - Chun-Lan Xie
- State Key Laboratory Breeding Base of Marine Genetic Resources
- Key Laboratory of Marine Genetic Resources
- Fujian Key Laboratory of Marine Genetic Resources
- Third Institute of Oceanography
- State Oceanic Administration
| | - Zi Miao
- State Key Laboratory Breeding Base of Marine Genetic Resources
- Key Laboratory of Marine Genetic Resources
- Fujian Key Laboratory of Marine Genetic Resources
- Third Institute of Oceanography
- State Oceanic Administration
| | - Quan Yang
- Department of Traditional Chinese Medicine
- Guangdong Pharmaceutical University
- Guangzhou 510006
- China
| | - Xian-Wen Yang
- State Key Laboratory Breeding Base of Marine Genetic Resources
- Key Laboratory of Marine Genetic Resources
- Fujian Key Laboratory of Marine Genetic Resources
- Third Institute of Oceanography
- State Oceanic Administration
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24
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Cytotoxic Labdane Diterpenes from Hedychium ellipticum Buch.-Ham. ex Sm. Molecules 2016; 21:molecules21060749. [PMID: 27294893 PMCID: PMC6273991 DOI: 10.3390/molecules21060749] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 05/27/2016] [Accepted: 06/03/2016] [Indexed: 12/03/2022] Open
Abstract
In order to reveal the constituents and their biological activities, we carried out a phytochemical study on Hedychium ellipticum Buch.-Ham. ex Sm. (Zingiberaceae). Ten labdane diterpenoids (1–10) were isolated from the rhizomes of H. ellipticum for the first time. Their structures were identified on the basis of spectroscopic analyses including two-dimensional NMR and comparison with literature data. All of these compounds were evaluated for their antimycobacterial activity against Mycobacterium tuberculosis and cytotoxicity against KB, MCF7, NCI-H187 and Vero cells. The result showed that compounds 1 and 7 exhibited moderate activity against Mycobacterium tuberculosis and compounds 4, 6 and 7 displayed remarkable cytotoxic activity. This is the first report on the presence of all compounds in H. ellipticum and the first time that their structure activity relationship has been discussed.
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26
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Chan EWC, Wong SK. Phytochemistry and pharmacology of ornamental gingers, Hedychium coronarium and Alpinia purpurata: a review. JOURNAL OF INTEGRATIVE MEDICINE 2015; 13:368-79. [PMID: 26559362 DOI: 10.1016/s2095-4964(15)60208-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this review, the phytochemistry and pharmacology of two ornamental gingers, Hedychium coronarium (butterfly ginger) and Alpinia purpurata (red ginger), are updated, and their botany and uses are described. Flowers of H. coronarium are large, showy, white, yellow or white with a yellow centre and highly fragrant. Inflorescences of A. purpurata are erect spikes with attractive red or pink bracts. Phytochemical investigations on the rhizomes of H. coronarium generated research interest globally. This resulted in the isolation of 53 labdane-type diterpenes, with little work done on the leaves and flowers. Pharmacological properties of H. coronarium included antioxidant, antibacterial, antifungal, cytotoxic, chemopreventive, anti-allergic, larvicidal, anthelminthic, analgesic, anti-inflammatory, anti-urolithiatic, anti-angiogenic, neuro-pharmacological, fibrinogenolytic, coagulant and hepatoprotective activities. On the contrary, little is known on the phytochemistry of A. purpurata with pharmacological properties of antioxidant, antibacterial, larvicidal, cytotoxic and vasodilator activities reported in the leaves and rhizomes. There is much disparity in terms of research effort within and between these two ornamental gingers.
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Affiliation(s)
- Eric Wei Chiang Chan
- Faculty of Applied Sciences, UCSI University, Cheras 56000, Kuala Lumpur, Malaysia
| | - Siu Kuin Wong
- School of Science, Monash University Sunway, Petaling Jaya 46150, Selangor, Malaysia
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27
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Synthesis and antifungal activity of ethers, alcohols, and iodohydrin derivatives of sclareol against phytopathogenic fungi in vitro. Bioorg Med Chem Lett 2015; 25:2773-7. [DOI: 10.1016/j.bmcl.2015.05.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 04/25/2015] [Accepted: 05/08/2015] [Indexed: 11/24/2022]
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28
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Lin YS, Lin JH, Chang CC, Lee SS. Tetrahydropyran- and tetrahydrofuran-containing diarylheptanoids from Hedychium coronarium rhizomes. JOURNAL OF NATURAL PRODUCTS 2015; 78:181-187. [PMID: 25594362 DOI: 10.1021/np500441r] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Seven new diarylheptanoids (1-7) were isolated from the n-BuOH-soluble fraction of the rhizome of Hedychium coronarium. Hedycoropyrans A-C (1-3) contain a tetrahydropyran moiety, while hedycorofurans A-D (4-7) contain a tetrahydrofuran moiety, belonging to a rare structural class of diarylheptanoids. Their structures including stereochemistry were elucidated on the basis of 1D and 2D NMR and ECD spectroscopic analyses and HRESIMS data of the parent compounds and the isopropylidene derivatives of 4 and 7.
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Affiliation(s)
- Yi-Shan Lin
- School of Pharmacy, College of Medicine, National Taiwan University , 33 Linsen South Road, Taipei 100, Taiwan, Republic of China
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29
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Manokam N, Nuntawong N. Chemical constituents from the rhizomes of Globba reflexa Craib. BIOCHEM SYST ECOL 2014. [DOI: 10.1016/j.bse.2014.09.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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30
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Hartati R, Suganda AG, Fidrianny I. Botanical, Phytochemical and Pharmacological Properties of Hedychium (Zingiberaceae) – A Review. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.proche.2014.12.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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31
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Schramm A, Ebrahimi SN, Raith M, Zaugg J, Rueda DC, Hering S, Hamburger M. Phytochemical profiling of Curcuma kwangsiensis rhizome extract, and identification of labdane diterpenoids as positive GABAA receptor modulators. PHYTOCHEMISTRY 2013; 96:318-329. [PMID: 24011802 DOI: 10.1016/j.phytochem.2013.08.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 07/29/2013] [Accepted: 08/09/2013] [Indexed: 06/02/2023]
Abstract
An ethyl acetate extract of Curcuma kwangsiensis S.G. Lee & C.F. Liang (Zingiberaceae) rhizomes (100 μg/ml) enhanced the GABA-induced chloride current (IGABA) through GABAA receptors of the α1β2γ2S subtype by 79.0±7.0%. Potentiation of IGABA was measured using the two-microelectrode voltage-clamp technique and Xenopus laevis oocytes. HPLC-based activity profiling of the crude extract led to the identification of 11 structurally related labdane diterpenoids, including four new compounds. Structure elucidation was achieved by comprehensive analysis of on-line (LC-PDA-ESI-TOF-MS) and off-line (microprobe 1D and 2D NMR) spectroscopic data. The absolute configuration of the compounds was established by comparison of experimental and calculated ECD spectra. Labdane diterpenes represent a new class of plant secondary metabolites eliciting positive GABAA receptor modulation. The highest efficiency was observed for zerumin A (maximum potentiation of IGABA by 309.4±35.6%, and EC50 of 24.9±8.8 μM).
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Affiliation(s)
- Anja Schramm
- Division of Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
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Jeker OF, Kravina AG, Carreira EM. Total Synthesis of (+)-Asperolide C by Iridium-Catalyzed Enantioselective Polyene Cyclization. Angew Chem Int Ed Engl 2013; 52:12166-9. [DOI: 10.1002/anie.201307187] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Indexed: 11/09/2022]
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Jeker OF, Kravina AG, Carreira EM. Total Synthesis of (+)-Asperolide C by Iridium-Catalyzed Enantioselective Polyene Cyclization. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201307187] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Chen JJ, Ting CW, Wu YC, Hwang TL, Cheng MJ, Sung PJ, Wang TC, Chen JF. New Labdane-type diterpenoids and anti-inflammatory constituents from Hedychium coronarium. Int J Mol Sci 2013; 14:13063-77. [PMID: 23799360 PMCID: PMC3742174 DOI: 10.3390/ijms140713063] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Revised: 06/03/2013] [Accepted: 06/08/2013] [Indexed: 11/16/2022] Open
Abstract
Four new labdane-type diterpenoids: hedychicoronarin (1), peroxycoronarin D (2), 7β-hydroxycalcaratarin A (3), and (E)-7β-hydroxy-6-oxo-labda-8(17),12-diene-15,16-dial (4), have been isolated from the rhizomes of Hedychium coronarium, together with 13 known compounds (5–17). The structures of these new compounds were determined through spectroscopic and MS analyses. Compounds 3, 5, 6, and 10 exhibited inhibition (IC50 values ≤4.52 μg/mL) of superoxide anion generation by human neutrophils in response to formyl-L-methionyl-L-leucyl-L-phenylalanine/cytochalasin B (fMLP/CB). Compounds 3–6, 10, and 11 inhibited fMLP/CB-induced elastase release with IC50 values ≤6.17 μg/mL.
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Affiliation(s)
- Jih-Jung Chen
- Graduate Institute of Pharmaceutical Technology & Department of Pharmacy, Tajen University, Pingtung 907, Taiwan; E-Mails: (Y.-C.W.); (T.-C.W.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +886-8-7624-002 (ext. 2827); Fax: +886-8-7624-002 (ext. 5121)
| | - Chia-Wei Ting
- Faculty of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan; E-Mail:
| | - Yi-Chin Wu
- Graduate Institute of Pharmaceutical Technology & Department of Pharmacy, Tajen University, Pingtung 907, Taiwan; E-Mails: (Y.-C.W.); (T.-C.W.)
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, Chang Gung University, Taoyuan 333, Taiwan; E-Mail:
| | - Ming-Jen Cheng
- Bioresource Collection and Research Center (BCRC), Food Industry Research and Development Institute (FIRDI), Hsinchu 300, Taiwan; E-Mail:
| | - Ping-Jyun Sung
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan; E-Mail:
| | - Tai-Chi Wang
- Graduate Institute of Pharmaceutical Technology & Department of Pharmacy, Tajen University, Pingtung 907, Taiwan; E-Mails: (Y.-C.W.); (T.-C.W.)
| | - Jinn-Fen Chen
- Taitung District Agricultural Research and Extension Station, Taitung 950, Taiwan; E-Mail:
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Cytotoxic sesquiterpenes from Hedychium spicatum: Isolation, structure elucidation and structure–activity relationship studies. Fitoterapia 2013; 86:100-7. [DOI: 10.1016/j.fitote.2013.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 01/23/2013] [Accepted: 02/10/2013] [Indexed: 11/20/2022]
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Salazar FJ, Villamizar JE. Use of (+)-manool in the Synthesis of Natural Products. Part II. Diterpenes and Relatives. JOURNAL OF CHEMICAL RESEARCH 2013. [DOI: 10.3184/174751912x13563728953551] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The syntheses of several kind of natural product skeletal including as ring C aromatic diterpenes, labdane, diterpenoid, purines and tricarbocyclic diterpenes from the diterpenoid (+)-manool are described in this review.
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Affiliation(s)
- Franklin J. Salazar
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (I.V.I.C.), Apartado 21827, Caracas 1020-A, Venezuela
| | - José E. Villamizar
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (I.V.I.C.), Apartado 21827, Caracas 1020-A, Venezuela
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Zhan ZJ, Wen YT, Ren FY, Rao GW, Shan WG, Li CP. Diterpenoids and a Diarylheptanoid fromHedychium coronariumwith Significant Anti-Angiogenic and Cytotoxic Activities. Chem Biodivers 2012; 9:2754-60. [DOI: 10.1002/cbdv.201100406] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Indexed: 11/09/2022]
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Kaomongkolgit R, Jamdee K, Wongnoi S, Chimnoi N, Techasakul S. Antifungal activity of coronarin D against Candida albicans. Oral Surg Oral Med Oral Pathol Oral Radiol 2012; 114:61-6. [DOI: 10.1016/j.oooo.2012.01.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2011] [Revised: 01/05/2012] [Accepted: 01/13/2012] [Indexed: 01/17/2023]
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Khunnawutmanotham N, Chimnoi N, Champathong W, Lerdsirisuk P, Khotmor T, Techasakul S. Coronarin D Conjugated to Methylene Homologues of Chlorambucil: Synthesis and Evaluation of their Cytotoxicity. JOURNAL OF CHEMICAL RESEARCH 2012. [DOI: 10.3184/174751912x13362343090928] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Methylene homologues of chlorambucil were synthesised and conjugated to the labdane diterpene coronarin D. The products were evaluated for their in vitro cytotoxicity, and were found to exhibit selective activity against MOLT-3 cell line. Two homologues of chlorambucil showed a comparable cytotoxic effect to their parent. However, as compared with the non-derivatised chlorambucil and its homologues, their conjugation with coronarin D through ester linkage did not enhance in vitro cytotoxicity against the tested cancer cell lines.
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Affiliation(s)
| | - Nitirat Chimnoi
- Chulabhorn Research Institute, Vibhavadee-Rangsit Highway, Lak Si, Bangkok 10210, Thailand
| | - Wattanachai Champathong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Pradit Lerdsirisuk
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Theeraphon Khotmor
- Chulabhorn Research Institute, Vibhavadee-Rangsit Highway, Lak Si, Bangkok 10210, Thailand
| | - Supanna Techasakul
- Chulabhorn Research Institute, Vibhavadee-Rangsit Highway, Lak Si, Bangkok 10210, Thailand
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
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Kiem PV, Anh HLT, Nhiem NX, Minh CV, Thuy NTK, Yen PH, Hang DT, Tai BH, Mathema VB, Koh YS, Kim YH. Labdane-Type Diterpenoids from the Rhizomes of Hedychium coronarium Inhibit Lipopolysaccharide-Stimulated Production of Pro-inflammatory Cytokines in Bone Marrow-Derived Dendritic Cells. Chem Pharm Bull (Tokyo) 2012; 60:246-50. [PMID: 22293485 DOI: 10.1248/cpb.60.246] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Phan Van Kiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology
| | - Hoang Le Tuan Anh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology
| | - Nguyen Xuan Nhiem
- College of Pharmacy, Chungnam National University
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology
| | - Chau Van Minh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology
| | - Nguyen Thi Kim Thuy
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology
- Viettri University of Industry
| | - Pham Hai Yen
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology
| | - Dan Thuy Hang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology
| | - Bui Huu Tai
- College of Pharmacy, Chungnam National University
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology
| | | | - Young-Sang Koh
- School of Medicine and Brain Korea 21 Program, Jeju National Universit
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University
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Kiem PV, Thuy NTK, Anh HLT, Nhiem NX, Minh CV, Yen PH, Ban NK, Hang DT, Tai BH, Tuyen NV, Mathema VB, Koh YS, Kim YH. Chemical constituents of the rhizomes of Hedychium coronarium and their inhibitory effect on the pro-inflammatory cytokines production LPS-stimulated in bone marrow-derived dendritic cells. Bioorg Med Chem Lett 2011; 21:7460-5. [DOI: 10.1016/j.bmcl.2011.09.129] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 09/23/2011] [Accepted: 09/30/2011] [Indexed: 10/16/2022]
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Xu H, Jiang P, Li W, Wang J, Liu H. Synthesis and Bioactivities of Andrographolide Derivatives: New (−)-Limonidilactone Analogues. CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201180366] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Ho JC. Antimicrobial, Mosquito Larvicidal and Antioxidant Properties of the Leaf and Rhizome of Hedychium coronarium. J CHIN CHEM SOC-TAIP 2011. [DOI: 10.1002/jccs.201190021] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Frija LMT, Frade RFM, Afonso CAM. Isolation, chemical, and biotransformation routes of labdane-type diterpenes. Chem Rev 2011; 111:4418-52. [PMID: 21618966 DOI: 10.1021/cr100258k] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Luís M T Frija
- CQFM - Centro de Química-Física Molecular and IN - Institute of Nanoscience and Nanotechnology, Departamento de Engenharia Química e Biológica Instituto Superior Técnico, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal.
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Suresh G, Prabhakar Reddy P, Suresh Babu K, Shaik TB, Kalivendi SV. Two new cytotoxic labdane diterpenes from the rhizomes of Hedychium coronarium. Bioorg Med Chem Lett 2010; 20:7544-8. [DOI: 10.1016/j.bmcl.2010.09.024] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2010] [Revised: 08/23/2010] [Accepted: 09/04/2010] [Indexed: 11/15/2022]
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48
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Chimnoi N, Pisutjaroenpong S, Ngiwsara L, Dechtrirut D, Chokchaichamnankit D, Khunnawutmanotham N, Mahidol C, Techasakul S. Labdane diterpenes from the rhizomes of Hedychium coronarium. Nat Prod Res 2010; 22:1249-56. [DOI: 10.1080/14786410701726434] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Nitirat Chimnoi
- a Chulabhorn Research Institute , Vibhavadee-Rangsit Road, Laksi, Bangkok 10210, Thailand
| | | | - Lukana Ngiwsara
- a Chulabhorn Research Institute , Vibhavadee-Rangsit Road, Laksi, Bangkok 10210, Thailand
| | - Decha Dechtrirut
- b Department of Chemistry , Faculty of Science, Kasetsart University , Chatuchak, Bangkok 10900, Thailand
| | | | | | - Chulabhorn Mahidol
- a Chulabhorn Research Institute , Vibhavadee-Rangsit Road, Laksi, Bangkok 10210, Thailand
| | - Supanna Techasakul
- a Chulabhorn Research Institute , Vibhavadee-Rangsit Road, Laksi, Bangkok 10210, Thailand
- b Department of Chemistry , Faculty of Science, Kasetsart University , Chatuchak, Bangkok 10900, Thailand
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49
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Synthesis, cytotoxic activity and structure–activity relationships of hedychenone analogues. Bioorg Med Chem Lett 2010; 20:2525-8. [DOI: 10.1016/j.bmcl.2010.02.101] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2009] [Revised: 02/04/2010] [Accepted: 02/26/2010] [Indexed: 11/19/2022]
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50
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Kumrit I, Suksamrarn A, Meepawpan P, Songsri S, Nuntawong N. Labdane-type diterpenes from Hedychium gardnerianum
with potent cytotoxicity against human small cell lung cancer cells. Phytother Res 2009; 24:1009-13. [DOI: 10.1002/ptr.3057] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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