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Rakhi SA, Hara Y, Islam MS, Manome T, Alam S, Emon NU, Al-Mansur MA, Kuddus MR, Sarkar MR, Ishibashi M, Ahmed F. Isolation of bioactive phytochemicals from Crinum asiaticum L . along with their cytotoxic and TRAIL-resistance abrogating prospect assessment. Heliyon 2024; 10:e25049. [PMID: 38318065 PMCID: PMC10838800 DOI: 10.1016/j.heliyon.2024.e25049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/18/2024] [Accepted: 01/18/2024] [Indexed: 02/07/2024] Open
Abstract
Crinum asiaticum L. (Amaryllidaceae) is a perennial bulbous herb, locally utilized for possessing multifaceted pharmacological properties including anticancer, immune-stimulating, analgesic, antiviral, antimalarial, antibacterial and antifungal, in addition to its popularity as an aesthetic plant. Separation of MeOH extract of C. asiaticum leaves yielded three known compounds as cycloneolitsol (1), hippeastrine (2) and β-sitosterol (3). Among these, compounds 1 and 2 were subjected to the cytotoxic assay and found that they induced mild effect against HCT116, Huh7 and DU145 cell lines with the IC50 values from 73.76 to 132.53 μM. When tested for TRAIL-resistance abrogating activity, 1 (100 μM) along with TRAIL (100 ng/mL) showed moderate activity in AGS cells producing 25 % more inhibition than the agent alone. Whereas 2 (20 and 30 μM) in combination with TRAIL (100 ng/mL) exhibited strong activity in abrogating TRAIL-resistance and caused 34 % and 36 % more inhibition in AGS cells, respectively. The in-silico studies of compound 2 revealed high docking hits with the TRAIL-associated anti-apoptotic proteins which give a justification for the regulatory interactions to induce such abrogating activity. It is still recommended to conduct further investigations to understand their exact molecular mechanism.
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Affiliation(s)
- Sharmin Ahmed Rakhi
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Yasumasa Hara
- Department of Natural Products Chemistry, Chiba University, Chiba, 260-8675, Japan
| | - Md. Saiful Islam
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka, 1000, Bangladesh
- Pharmaceutical Sciences Research Division, BCSIR Laboratories, Dhaka, Bangladesh Council of Scientific and Industrial Research, Dhaka, 1205, Bangladesh
| | - Teruhisa Manome
- Department of Natural Products Chemistry, Chiba University, Chiba, 260-8675, Japan
| | - Safaet Alam
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka, 1000, Bangladesh
- Drugs and Toxins Research Division, BCSIR Laboratories Rajshahi, Bangladesh Council of Scientific and Industrial Research, Rajshahi, 6206, Bangladesh
| | - Nazim Uddin Emon
- Department of Pharmacy, Faculty of Science and Engineering, International Islamic University Chittagong, Chittagong, 4318, Bangladesh
| | | | - Md. Ruhul Kuddus
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Md. Raihan Sarkar
- Department of Pharmaceutical Technology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Masami Ishibashi
- Department of Natural Products Chemistry, Chiba University, Chiba, 260-8675, Japan
| | - Firoj Ahmed
- Department of Pharmacy, University of Dhaka, Dhaka, 1000, Bangladesh
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Farabi K, Runadi D, Kuncoro H, Harneti D, Mayanti T, Azmi MN, Fajriah S, Supratman U. The Cytotoxic Activity of Dammarane-Type Triterpenoids Isolated from the Stem Bark of Aglaia cucullata (Meliaceae). Molecules 2023; 28:4946. [PMID: 37446608 DOI: 10.3390/molecules28134946] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/17/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
The Aglaia genus, a member of the Meliaceae family, is generally recognized to include a number of secondary metabolite compounds with diverse structures and biological activities, including triterpenoids. Among the members of this genus, Aglaia cucullata has been reported to have unique properties and thrives exclusively in mangrove ecosystems. This plant is also known to contain various metabolites, such as flavaglines, bisamides, and diterpenoids, but there are limited reports on the isolation of triterpenoid compounds from its stem bark. Therefore, this research attempted to isolate and elucidate seven triterpenoids belonging to dammarane-type (1-7) from the stem bark of Aglaia cucullata. The isolated compounds included 20S,24S-epoxy-3α,25-dihydroxy-dammarane (1), dammaradienone (2), 20S-hydroxy-dammar-24-en-3-on (3), eichlerianic acid (4), (20S,24RS)-23,24-epoxy-24-methoxy-25,26,27-tris-nor dammar-3-one (5), 3α-acetyl-cabraleahydroxy lactone (6), and 3α-acetyl-20S,24S-epoxy-3α,25-dihydroxydammarane (7). Employing spectroscopic techniques, the chemical structures of the triterpenoids were identified using FTIR, NMR, and HRESITOF-MS. The cytotoxic activity of compounds 1-7 was tested with the PrestoBlue cell viability reagent against MCF-7 breast cancer, B16-F10 melanoma, and CV-1 normal kidney fibroblast cell lines. The results displayed that compound 5 had the highest level of bioactivity compared to the others. Furthermore, the IC50 values obtained were more than 100 μM, indicating the low potential of natural dammarane-type triterpenoids as anticancer agents. These findings provided opportunities for further studies aiming to increase their cytotoxic activities through semi-synthetic methods.
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Affiliation(s)
- Kindi Farabi
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Sumedang 45363, West Java, Indonesia
- Central Laboratory, Universitas Padjadjaran, Sumedang 45363, West Java, Indonesia
| | - Dudi Runadi
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Sumedang 45363, West Java, Indonesia
| | - Hadi Kuncoro
- Faculty of Pharmacy, Universitas Mulawarman, Samarinda 75123, East Kalimantan, Indonesia
| | - Desi Harneti
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Sumedang 45363, West Java, Indonesia
| | - Tri Mayanti
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Sumedang 45363, West Java, Indonesia
| | - Mohamad Nurul Azmi
- School of Chemical Sciences, Universiti Sains Malaysia, Minden 11800, Penang, Malaysia
| | - Sofa Fajriah
- Research Center for Pharmaceutical Ingredients and Traditional Medicine, National Research and Innovation Agency (BRIN), Complex Cibinong Science Center-BRIN, Cibinong 16911, Jawa Barat, Indonesia
| | - Unang Supratman
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Sumedang 45363, West Java, Indonesia
- Central Laboratory, Universitas Padjadjaran, Sumedang 45363, West Java, Indonesia
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Yang Y, Chen R, Chen H, Liu M, Guan L, Chen D, Zhu Q, Wang A. Chemical constituents and their chemotaxonomic significance from the roots of Zea mays L. BIOCHEM SYST ECOL 2022. [DOI: 10.1016/j.bse.2022.104515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Islam ATMR, Hasan MM, Islam MT, Tanaka N. Ethnobotanical study of plants used by the Munda ethnic group living around the Sundarbans, the world's largest mangrove forest in southwestern Bangladesh. JOURNAL OF ETHNOPHARMACOLOGY 2022; 285:114853. [PMID: 34822959 DOI: 10.1016/j.jep.2021.114853] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/17/2021] [Accepted: 11/17/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Indigenous knowledge of medicinal plants is an integral part of the primary health care (PHC) system in almost every society. For more than two centuries, Munda, a small ethnic group in Bangladesh, has lived around the Sundarbans, the world's largest mangrove forest. This mangrove is rich in biodiversity but is threatened by global climate change. Information on the therapeutic use of plants by Munda ethnic minorities remains completely unknown. Therefore, it needs urgent documentation. AIM OF THE STUDY The purpose of the study is (1) to search and compile data on the diversity of medicinal plants used by the Munda people for PHC needs, and (2) Quantitative analysis of these data to identify important medicinal plants and diseases related to treatment by this species. MATERIAL AND METHODS We conducted repeated field surveys and interviews among 79 Munda informants to collect ethnobotanical data. Informants were selected through random sampling techniques and interviewed using an open and semi-structured questionnaire. We reported the primary (absolute) data as use reports (URs) with frequency citation (FC). The International Classification of Primary Care-2 (ICPC-2) was followed to categorize the therapeutic use of medicinal plants, and quantitative analysis was performed using the FC and informant consensus factor (ICF). RESULTS The present study explored and compiled a total of 3199 medicinal URs for 98 medicinal plant species to treat 132 ailment conditions under sixteen (16) ICPC-2 pathological groups. The highest URs (948) were noted for the digestive (D) group treated by 69 plant species, where the highest ICF value was measured for the social problem (Z) disease category (ICF: 1.00). Of the recorded medicinal plants, 17 were identified as true Mangrove (MNG), 24 as Mangrove Associates (MNA), and 57 as Non-Mangrove (NMG) species. Fabaceae (13 species) represented the leading family, followed by Lamiaceae and Compositae (5 species). Herbs (43%) have shown dominant life forms, and the leaves (41%) were frequently used plant parts. The most commonly cited preparation method was juice (24%), and the prevalent mode of administration was oral (62%). Azadirachta indica A. Juss. was the most widely used therapeutic plant species based on FC (39) values. The comparative literature review study reveals that the practices of 15 plants and their ethnomedicinal use by the Munda people are still entirely unexplored and newly reported in Bangladesh. Additionally, therapeutic use of 2 species, Brownlowia tersa (L.) Kosterm., and Dalbergia candenatensis (Dennst.) Prain has not been previously reported worldwide. In addition, 51 plant species (52%) of the total plants studied enlisted on the IUCN Red List of Threatened Species. CONCLUSION To our knowledge, this is the first ethnobotanical study on the Munda ethnic group in Bangladesh. This study indicates that Munda people still rely on medicinal plants for PHC and have a rich and varied traditional knowledge about the therapeutic use of plants. This study also warns of the high risk of the current availability status of plants in the study area. Therefore, this study calls for urgent steps to protect and conserve high-risk plants that can be done by taking both in-situ and ex-situ measures. In addition, further phytochemical and pharmacological investigations of the important medicinal plants cited in the study have been suggested.
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Affiliation(s)
- A T M Rafiqul Islam
- Department of Botany, Faculty of Bio-Sciences, University of Barishal, Barishal, 8254, Bangladesh; Center for Gene Science, Hiroshima University, 1-4-2 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8527, Japan; Department of Molecular Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8530, Japan.
| | - Md Mahadiy Hasan
- Department of Botany, Faculty of Bio-Sciences, University of Barishal, Barishal, 8254, Bangladesh.
| | - Md Tahidul Islam
- Department of Botany, Faculty of Bio-Sciences, University of Barishal, Barishal, 8254, Bangladesh.
| | - Nobukazu Tanaka
- Center for Gene Science, Hiroshima University, 1-4-2 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8527, Japan; Department of Molecular Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8530, Japan.
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Greger H. Comparative phytochemistry of flavaglines (= rocaglamides), a group of highly bioactive flavolignans from Aglaia species (Meliaceae). PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2022; 21:725-764. [PMID: 34104125 PMCID: PMC8176878 DOI: 10.1007/s11101-021-09761-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 05/17/2021] [Indexed: 05/07/2023]
Abstract
Flavaglines are formed by cycloaddition of a flavonoid nucleus with a cinnamic acid moiety representing a typical chemical character of the genus Aglaia of the family Meliaceae. Based on biosynthetic considerations 148 derivatives are grouped together into three skeletal types representing 77 cyclopenta[b]benzofurans, 61 cyclopenta[bc]benzopyrans, and 10 benzo[b]oxepines. Apart from different hydroxy, methoxy, and methylenedioxy groups of the aromatic rings, important structural variation is created by different substitutions and stereochemistries of the central cyclopentane ring. Putrescine-derived bisamides constitute important building blocks occurring as cyclic 2-aminopyrrolidines or in an open-chained form, and are involved in the formation of pyrimidinone flavaglines. Regarding the central role of cinnamic acid in the formation of the basic skeleton, rocagloic acid represents a biosynthetic precursor from which aglafoline- and rocaglamide-type cyclopentabenzofurans can be derived, while those of the rocaglaol-type are the result of decarboxylation. Broad-based comparison revealed characteristic substitution trends which contribute as chemical markers to natural delimitation and grouping of taxonomically problematic Aglaia species. A wide variety of biological activities ranges from insecticidal, antifungal, antiprotozoal, and anti-inflammatory properties, especially to pronounced anticancer and antiviral activities. The high insecticidal activity of flavaglines is comparable with that of the well-known natural insecticide azadirachtin. Comparative feeding experiments informed about structure-activity relationships and exhibited different substitutions of the cyclopentane ring essential for insecticidal activity. Parallel studies on the antiproliferative activity of flavaglines in various tumor cell lines revealed similar structural prerequisites that let expect corresponding molecular mechanisms. An important structural modification with very high cytotoxic potency was found in the benzofuran silvestrol characterized by an unusual dioxanyloxy subunit. It possessed comparable cytotoxicity to that of the natural anticancer compounds paclitaxel (Taxol®) and camptothecin without effecting normal cells. The primary effect was the inhibition of protein synthesis by binding to the translation initiation factor eIF4A, an ATP-dependent DEAD-box RNA helicase. Flavaglines were also shown to bind to prohibitins (PHB) responsible for regulation of important signaling pathways, and to inhibit the transcriptional factor HSF1 deeply involved in metabolic programming, survival, and proliferation of cancer cells. Flavaglines were shown to be not only promising anticancer agents but gained now also high expectations as agents against emerging RNA viruses like SARS-CoV-2. Targeting the helicase eIF4A with flavaglines was recently described as pan-viral strategy for minimizing the impact of future RNA virus pandemics.
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Affiliation(s)
- Harald Greger
- Chemodiversity Research Group, Faculty of Life Sciences, University of Vienna, Rennweg 14, 1030 Wien, Austria
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Xu WH, Su XM, Wang C, Du F, Liang Q. The genus Amoora: A phytochemical and pharmacological review. Fitoterapia 2019; 137:104269. [DOI: 10.1016/j.fitote.2019.104269] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/14/2019] [Accepted: 07/14/2019] [Indexed: 11/25/2022]
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8
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Arai MA, Taguchi S, Komatsuzaki K, Uchiyama K, Masuda A, Sampei M, Satoh M, Kado S, Ishibashi M. Valosin-containing Protein is a Target of 5'-l Fuligocandin B and Enhances TRAIL Resistance in Cancer Cells. ChemistryOpen 2016; 5:574-579. [PMID: 28032027 PMCID: PMC5167318 DOI: 10.1002/open.201600081] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Indexed: 01/25/2023] Open
Abstract
Fuligocandin B (2) is a novel natural product that can overcome TRAIL resistance. We synthesized enatiomerically pure fuligocandin B (2) and its derivative 5′‐I fuligocandin B (4), and found that the latter had an improved biological activity against the human gastric cancer cell line, AGS. We attached a biotin linker and photoactivatable aryl diazirine group to 5′‐I fuligocandin B (4), and employed a pull‐down assay to identify valosin‐containing protein (VCP/p97), an AAA ATPase, as a 5′‐I fuligocandin B (4) target protein. Knock‐down of VCP by siRNA enhanced sensitivity to TRAIL in AGS cells. In addition, 4 enhanced CHOP and DR5 protein expression, and overall intracellular levels of ubiquitinated protein. These data suggest that endoplasmic reticulum stress caused through VCP inhibition by 4 increases CHOP‐mediated DR5 up‐regulation, which enhances TRAIL‐induced cell death in AGS cells. To the best of our knowledge, this is the first example to show a relationship between VCP and TRAIL‐resistance‐overcoming activity in cancer cells.
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Affiliation(s)
- Midori A Arai
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1 Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Shota Taguchi
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1 Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Kazuhiro Komatsuzaki
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1 Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Kento Uchiyama
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1 Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Ayaka Masuda
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1 Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Mana Sampei
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1 Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Mamoru Satoh
- Division of Clinical Mass Spectrometry Chiba University Hospital 1-8-1 Inohana, Chuo-ku Chiba260-8670 Japan; Chemical Analysis Center Chiba University 1-33 Yayoi-cho, Inage-ku Chiba263-8522 Japan
| | - Sayaka Kado
- Chemical Analysis Center Chiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Masami Ishibashi
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1 Inohana, Chuo-ku Chiba 260-8675 Japan
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Ahmed F, Toume K, Ishikawa N, Arai MA, Sadhu SK, Ishibashi M. Constituents from Entada scandens with TRAIL-resistance Overcoming Activity. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) has emerged as a promising anticancer agent because of its ability to selectively kill tumor cells. But TRAIL-resistance is a major problem of its therapy. A search for compounds for abrogating TRAIL-resistance has, thus, become an important strategy for anticancer drug discovery. In search of bioactive natural products for overcoming TRAIL-resistance, we previously reported some compounds with TRAIL-resistance overcoming activity. Bioassay guided fractionation of Entada scandens led to the isolation of four compounds (1-4). Of the isolates, compounds 1 and 3 showed moderate TRAIL-resistance overcoming activity in TRAIL-resistant human gastric adenocarcinoma (AGS) cells.
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Affiliation(s)
- Firoj Ahmed
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka-1000, Bangladesh
| | - Kazufumi Toume
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Naoki Ishikawa
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Midori A. Arai
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Samir K. Sadhu
- Pharmacy Discipline, Khulna University, Khulna-9208, Bangladesh
| | - Masami Ishibashi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
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Blair LM, Calvert MB, Sperry J. Flavoalkaloids-Isolation, Biological Activity, and Total Synthesis. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2016; 77:85-115. [PMID: 28212702 DOI: 10.1016/bs.alkal.2016.04.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The flavoalkaloids possess unique molecular frameworks that contain both a flavonoid and alkaloid component. Flavoalkaloids result from the convergence of distinct biosynthetic pathways, affording natural products that display a wide range of interesting biological activities that would not be expected for flavonoids or alkaloids alone. This chapter collates all the known flavoalkaloids up until early 2016, detailing their isolation, bioactivity, and successful total syntheses.
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Karmakar UK, Toume K, Ishikawa N, Arai MA, Sadhu SK, Ahmed F, Ishibashi M. Bioassay-Guided Isolation of Compounds from Datura Stramonium with TRAIL-Resistance Overcoming Activity. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
TRAIL is a potent inducer of apoptosis in most cancer cells, but not in normal cells, and therefore has deserved intense interest as a promising agent for cancer therapy. In the search for bioactive natural products for overcoming TRAIL-resistance, we previously reported a number of active compounds. In our screening program on natural resources targeting overcoming TRAIL-resistance, activity-guided fractionation of the MeOH extract of Datura stramonium leaves led to the isolation of three alkaloids – scopolamine (1), trigonelline (2), and tyramine (3). Compounds 1, 2, and 3 exhibited TRAIL-resistance overcoming activity at 50, 150, and 100 μM, respectively in TRAIL-resistant AGS cells.
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Affiliation(s)
- Utpal K. Karmakar
- Graduate School of Pharmaceutical Sciences, Chiba University, Japan
- Pharmacy Discipline, Khulna University, Bangladesh
| | - Kazufumi Toume
- Graduate School of Pharmaceutical Sciences, Chiba University, Japan
| | - Naoki Ishikawa
- Graduate School of Pharmaceutical Sciences, Chiba University, Japan
| | - Midori A. Arai
- Graduate School of Pharmaceutical Sciences, Chiba University, Japan
| | | | - Firoj Ahmed
- Department of Pharmaceutical Chemistry, Dhaka University, Bangladesh
| | - Masami Ishibashi
- Graduate School of Pharmaceutical Sciences, Chiba University, Japan
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Ahmed F, Ishibashi M. Bio-active Natural Products with TRAIL-Resistance Overcoming Activity. Chem Pharm Bull (Tokyo) 2016; 64:119-27. [DOI: 10.1248/cpb.c15-00732] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Firoj Ahmed
- Graduate School of Pharmaceutical Sciences, Chiba University
- Department of Pharmaceutical Chemistry, University of Dhaka
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13
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Arai MA, Kofuji Y, Tanaka Y, Yanase N, Yamaku K, Fuentes RG, Karmakar UK, Ishibashi M. Synthesis of rocaglamide derivatives and evaluation of their Wnt signal inhibitory activities. Org Biomol Chem 2016; 14:3061-8. [DOI: 10.1039/c5ob02537k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A new class of rocaglamide derivatives were synthesized by [3 + 2] cycloaddition and their Wnt signal inhibitory activities were evaluated.
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Affiliation(s)
- Midori A. Arai
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
| | - Yuuki Kofuji
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
| | - Yuuki Tanaka
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
| | - Natsuki Yanase
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
| | - Kazuki Yamaku
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
| | - Rolly G. Fuentes
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
| | - Utpal Kumar Karmakar
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
| | - Masami Ishibashi
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
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Sesquiterpenes with TRAIL-resistance overcoming activity from Xanthium strumarium. Bioorg Med Chem 2015; 23:4746-4754. [PMID: 26081757 DOI: 10.1016/j.bmc.2015.05.044] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 05/22/2015] [Accepted: 05/24/2015] [Indexed: 02/04/2023]
Abstract
The ability of TRAIL to selectively induce apoptosis in cancer cells while sparing normal cells makes it an attractive target for the development of new cancer therapy. In search of bioactive natural products for overcoming TRAIL-resistance from natural resources, we previously reported a number of active compounds. In our screening program on natural resources targeting overcoming TRAIL-resistance, activity-guided fractionations of the extract of Xanthium strumarium led to the isolation of five sesquiterpene compounds (1-5). 11α,13-dihydroxanthinin (2) and 11α,13-dihydroxanthuminol (3) were first isolated from natural resources and xanthinosin (1), desacetylxanthanol (4), and lasidiol p-methoxybenzoate (5) were known compounds. All compounds (1-5) showed potent TRAIL-resistance overcoming activity at 8, 20, 20, 16, and 16 μM, respectively, in TRAIL-resistant AGS cells. Compounds 1 and 5 enhanced the levels of apoptosis inducing proteins DR4, DR5, p53, CHOP, Bax, cleaved caspase-3, cleaved caspase-8, and cleaved caspase-9 and also decreased the levels of cell survival protein Bcl-2 in TRAIL-resistant AGS cells in a dose-dependent manner. Compound 1 also enhanced the levels of DR4 and DR5 proteins in a time-dependent manner. Thus, compounds 1 and 5 were found to induce both extrinsic and intrinsic apoptotic cell death. Compound 1 also exhibit TRAIL-resistance overcoming activity in DLD1, DU145, HeLa, and MCF7 cells but did not decrease viability in non-cancer HEK293 cells up to 8 μM.
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Toume K, Habu T, Arai MA, Koyano T, Kowithayakorn T, Ishibashi M. Prenylated flavonoids and resveratrol derivatives isolated from Artocarpus communis with the ability to overcome TRAIL resistance. JOURNAL OF NATURAL PRODUCTS 2015; 78:103-110. [PMID: 25537111 DOI: 10.1021/np500734t] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In a screening program on natural products that can abrogate tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) resistance, four new prenylated flavonoid and resveratrol derivatives (1-4) were isolated from Artocarpus communis, together with eight known prenylflavonoids (5-12). The structures of 1-4 were elucidated spectroscopically. Pannokin D [corrected] (1) (2 μM) and artonin E (5) (3 μM) potently exhibited the ability to overcome TRAIL resistance. Artonin E (5) induced caspase-dependent apoptosis in combination with TRAIL, increased caspase 3/7 activity, and enhanced the protein levels of p53 and DR5. Moreover, this substance decreased cell viability in combination with TRAIL and enhanced the protein levels of DR5, and these effects were mediated by increases in the production of ROS (reactive oxygen species). Thus, artonin E (5) was found to induce extrinsic apoptotic cell death by the ROS- and p53-mediated up-regulation of DR5 expression in AGS cells.
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Affiliation(s)
- Kazufumi Toume
- Graduate School of Pharmaceutical Sciences, Chiba University , 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
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Mansha M, Abbas Y, Ullah N. Microwave-Assisted Claisen Rearrangement: Synthesis of Naturally Occurring TRAIL-Resistance-Overcoming Tyrosine Derivative. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2014.974614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- M. Mansha
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Y. Abbas
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - N. Ullah
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
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Pan L, Woodard JL, Lucas DM, Fuchs JR, Kinghorn AD. Rocaglamide, silvestrol and structurally related bioactive compounds from Aglaia species. Nat Prod Rep 2014; 31:924-39. [PMID: 24788392 PMCID: PMC4091845 DOI: 10.1039/c4np00006d] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Covering: 2006 to 2013. Investigations on the chemistry and biology of rocaglamide, silvestrol and structurally related bioactive compounds from Aglaia species during the period 2006-2013 are reviewed. Included are new phytochemical studies of naturally occurring rocaglamide derivatives, an update on synthetic methods for cyclopenta[b]benzofurans, and a description of the recent biological evaluation and mechanism-of-action studies on compounds of this type.
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Affiliation(s)
- Li Pan
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, Ohio 43210, United States
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Toume K, Tsukahara K, Ito H, Arai MA, Ishibashi M. Chromomycins A2 and A3 from marine actinomycetes with TRAIL resistance-overcoming and Wnt signal inhibitory activities. Mar Drugs 2014; 12:3466-76. [PMID: 24905484 PMCID: PMC4071586 DOI: 10.3390/md12063466] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 04/05/2014] [Accepted: 04/09/2014] [Indexed: 01/01/2023] Open
Abstract
A biological screening study of an actinomycetes strain assembly was conducted using a cell-based cytotoxicity assay. The CKK1019 strain was isolated from a sea sand sample. Cytotoxicity-guided fractionation of the CKK1019 strain culture broth, which exhibited cytotoxicity, led to the isolation of chromomycins A2 (1) and A3 (2). 1 and 2 showed potent cytotoxicity against the human gastric adenocarcinoma (AGS) cell line (IC501; 1.7 and 2; 22.1 nM), as well as strong inhibitory effects against TCF/β-catenin transcription (IC501; 1.8 and 2; 15.9 nM). 2 showed the ability to overcome tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) resistance. To the best of our knowledge, the effects of chromomycins A2 (1) and A3 (2) on TRAIL resistance-overcoming activity, and on the Wnt signaling pathway, have not been reported previously. Thus, 1 and 2 warrant potential drug lead studies in relation to TRAIL-resistant and Wnt signal-related diseases and offer potentially useful chemical probes for investigating TRAIL resistance and the Wnt signaling pathway.
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Affiliation(s)
- Kazufumi Toume
- Department of Natural Products Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan.
| | - Kentaro Tsukahara
- Department of Natural Products Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan.
| | - Hanako Ito
- Department of Natural Products Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan.
| | - Midori A Arai
- Department of Natural Products Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan.
| | - Masami Ishibashi
- Department of Natural Products Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan.
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Bioactive heterocyclic natural products from actinomycetes having effects on cancer-related signaling pathways. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2014; 99:147-98. [PMID: 25296439 DOI: 10.1007/978-3-319-04900-7_3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Minakawa T, Toume K, Arai MA, Koyano T, Kowithayakorn T, Ishibashi M. Prenylflavonoids isolated from Artocarpus champeden with TRAIL-resistance overcoming activity. PHYTOCHEMISTRY 2013; 96:299-304. [PMID: 24074554 DOI: 10.1016/j.phytochem.2013.08.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 07/17/2013] [Accepted: 08/26/2013] [Indexed: 06/02/2023]
Abstract
In a screening program for bioactive natural products which can overcome Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL)-resistance, three prenylflavonoids, named pannokin A-C, were isolated from a MeOH extract of Artocarpus champeden (Moraceae) roots, together with three known prenylflavonoids. The structures of pannokin A-C were elucidated by spectroscopic analysis. These of the prenylflavonoids in combination with TRAIL, showed cytotoxic activity in sensitizing TRAIL-resistant human gastric adenocarcinoma (AGS) cells. Of these compounds, heterophyllin increased caspase 3/7 activity when combined with TRAIL in AGS cells, and enhanced the expression of DR4 and DR5 mRNA. Moreover, heterophyllin up-regulated mRNA expression of CCAAT/enhancer-binding protein-homologous protein (CHOP) which was reported to be an important regulator of DR5 expression. Thus, heterophyllin was presumed to cause a CHOP-dependent up-regulation of DR5 expression resulting in apoptosis in AGS cells.
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Affiliation(s)
- Tomohiro Minakawa
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
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The synergistic effects of low dose fluorouracil and TRAIL on TRAIL-resistant human gastric adenocarcinoma AGS cells. BIOMED RESEARCH INTERNATIONAL 2013; 2013:293874. [PMID: 24324958 PMCID: PMC3845848 DOI: 10.1155/2013/293874] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 09/30/2013] [Indexed: 02/05/2023]
Abstract
The TNF-related apoptosis-inducing ligand (TRAIL) is a TNF family member which has been under intense focus because of its remarkable ability to induce apoptosis in malignant human cells while leaving normal cells unscathed. However, many cancer cells remain resistant to TRAIL. In this study, we had investigated the synergistic effects of low dose fluorouracil (5-Fu) and TRAIL on TRAIL-resistant human gastric adenocarcinoma AGS cells and explored the potential mechanisms. Cell viability was analyzed by sulforhodamine B (SRB) assay and the synergistic effects were evaluated by Jin's formula and confirmed by both morphological changes under inverted microscope and flow cytometry. The expression of TRAIL-R1 (death receptor 4, DR4), TRAIL-R2 (DR5), TRAIL-R3 (decoy receptor, DcR1), TRAIL-R4 (DcR2), procaspase-3, procaspase-8, and procaspase-9 was detected by western blotting. Our results showed that there were significant synergistic effects of low dose 5-Fu and TRAIL on TRAIL-resistant AGS cells, and this effect was supposed to be mediated by decreasing DcR2 expression and increasing DR5 expression. The extrinsic and intrinsic apoptosis pathways were both activated. The data suggest that combined treatment of low dose 5-Fu and TRAIL can be an effective therapeutic approach for gastric adenocarcinoma.
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Minakawa T, Toume K, Arai MA, Sadhu SK, Ahmed F, Ishibashi M. Eudesmane-type sesquiterpenoid and guaianolides from Kandelia candel in a screening program for compounds to overcome TRAIL resistance. JOURNAL OF NATURAL PRODUCTS 2012; 75:1431-1435. [PMID: 22823026 DOI: 10.1021/np300179c] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In a screening program for natural products that can overcome TRAIL resistance, a new eudesmane-type sesquiterpenoid (1), three new guaianolides, mehirugins A-C (2-4), and two known guaianolides (5 and 6) were isolated from a MeOH extract of Kandelia candel leaves. Compounds 1 and 3-6 in combination with TRAIL showed cytotoxic activity in sensitizing TRAIL-resistant human gastric adenocarcinoma cells.
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Affiliation(s)
- Tomohiro Minakawa
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chiba 260-8675, Japan
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Abdelfattah MS, Toume K, Arai MA, Masu H, Ishibashi M. Katorazone, a new yellow pigment with a 2-azaquinone-phenylhydrazone structure produced by Streptomyces sp. IFM 11299. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.04.073] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
This review covers the isolation and structure determination of triterpenoids, including squalene derivatives, protostanes, lanostanes, holostanes, cycloartanes, dammaranes, euphanes, tirucallanes, tetranortriterpenoids, quassinoids, lupanes, oleananes, friedelanes, ursanes, hopanes, serratanes and saponins; 305 references are cited.
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Affiliation(s)
- Robert A Hill
- School of Chemistry, Glasgow University, Glasgow G12 8QQ, UK
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Abdelfattah MS, Toume K, Ishibashi M. Yoropyrazone, a new naphthopyridazone alkaloid isolated from Streptomyces sp. IFM 11307 and evaluation of its TRAIL resistance-overcoming activity. J Antibiot (Tokyo) 2012; 65:245-8. [DOI: 10.1038/ja.2012.11] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ishibashi M, A. Arai M. Bioactive Natural Products from Myxomycetes Having Effects on Signaling Pathways. HETEROCYCLES 2012. [DOI: 10.3987/rev-12-732] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Abstract
Covering: 2010. Previous review: Nat. Prod. Rep., 2011, 28, 196. This review covers the literature published in 2010 for marine natural products, with 895 citations (590 for the period January to December 2010) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1003 for 2010), together with the relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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Ribeiro N, Thuaud F, Nebigil C, Désaubry L. Recent advances in the biology and chemistry of the flavaglines. Bioorg Med Chem 2011; 20:1857-64. [PMID: 22071525 DOI: 10.1016/j.bmc.2011.10.048] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 10/04/2011] [Accepted: 10/15/2011] [Indexed: 01/03/2023]
Abstract
The flavaglines are a family of plant natural products that induce potent anticancer and neuroprotective activities. This review summarizes recent synthetic approaches to flavaglines and the current status of their pharmacological properties.
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Affiliation(s)
- Nigel Ribeiro
- Therapeutic Innovation Laboratory, UMR 7200, CNRS/Université de Strasbourg, 67401 Illkirch, France
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Minakawa T, Toume K, Ahmed F, Sadhu SK, Ohtsuki T, Arai MA, Ishibashi M. Constituents of Pongamia pinnata isolated in a screening for activity to overcome tumor necrosis factor-related apoptosis-inducing ligand-resistance. Chem Pharm Bull (Tokyo) 2011; 58:1549-51. [PMID: 21048354 DOI: 10.1248/cpb.58.1549] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In a search for natural products with activity to overcome tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-resistance, we performed the bioassay-guided fractionation of a semi mangrove, Pongamia pinnata, collected from Bangladesh, and isolated a new compound, (2S)-(2″,3″:7,8)-furanoflavanone (1), along with six known flavonoids (2-7). Two of the compounds significantly overcame TRAIL-resistance in human gastric adenocarcinoma (AGS) cell lines.
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Toume K, Nakazawa T, Ohtsuki T, Arai MA, Koyano T, Kowithayakorn T, Ishibashi M. Cycloartane triterpenes isolated from Combretum quadrangulare in a screening program for death-receptor expression enhancing activity. JOURNAL OF NATURAL PRODUCTS 2011; 74:249-255. [PMID: 21265555 DOI: 10.1021/np100784t] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In our screening program for natural products that increase DR5 (death-receptor 5) expression, nine new cycloartane triterpenes, combretanones A-G (1-7), combretic acid A (8), and combretic acid B (9), were isolated from a MeOH extract of Combretum quadrangulare leaves. The known oleanane triterpenes (10, 11) and six known flavonols (12-17) were also isolated. The structures of 1-9 were elucidated by spectroscopic studies. Compounds 7, 9, 12, 16, and 17 enhanced DR5 expression, and 16 showed TRAIL-resistance abrogating activity.
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Affiliation(s)
- Kazufumi Toume
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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Arai MA, Hanazawa S, Uchino Y, Li X, Ishibashi M. Total synthesis and evaluation of Wnt signal inhibition of melleumin A and B, and their derivatives. Org Biomol Chem 2010; 8:5285-93. [PMID: 20865179 DOI: 10.1039/c0ob00352b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The total synthesis of melleumin A (1), a novel cyclic depsipeptide isolated from the myxomycete Physarum melleum, and 3-epi-melleumin A (6) was achieved. Melleumin A-like compounds were also designed and synthesized; analysis of these melleumin A-like compounds showed moderate Wnt signal inhibition. Comparison of the inhibition activity of melleumin B and its three epimers, melleumin A, 3-epi-melleumin A and three melleumin A-like compounds led to further investigation of the structural conformation of the active molecules. The scaffold of melleumin is a potential target in the search for "peptide-like" Wnt signaling inhibitors.
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Affiliation(s)
- Midori A Arai
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
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