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Hirasawa Y, Kase A, Okamoto A, Suzuki K, Hiroki M, Kaneda T, Uchiyama N, Morita H. Vincazalidine A, a unique bisindole alkaloid from Catharanthus roseus. J Nat Med 2024; 78:382-392. [PMID: 38347371 DOI: 10.1007/s11418-023-01775-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/20/2023] [Indexed: 02/29/2024]
Abstract
A new dimeric indole alkaloid, vincazalidine A consisting of an aspidosperma type and a modified iboga type with 1-azatricyclo ring system consisting of one azepane and two piperidine rings coupled with an oxazolidine ring was isolated from Catharanthus roseus, and the structure including absolute stereochemistry was elucidated on the basis of spectroscopic data as well as DP4 statistical analysis. Vincazalidine A induced G2 arrest and subsequent apoptosis in human lung carcinoma cell line, A549 cells.
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Affiliation(s)
- Yusuke Hirasawa
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-Ku, Tokyo, 142-8501, Japan.
| | - Ayaka Kase
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-Ku, Tokyo, 142-8501, Japan
| | - Akie Okamoto
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-Ku, Tokyo, 142-8501, Japan
| | - Keigo Suzuki
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-Ku, Tokyo, 142-8501, Japan
| | - Mizuki Hiroki
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-Ku, Tokyo, 142-8501, Japan
| | - Toshio Kaneda
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-Ku, Tokyo, 142-8501, Japan
| | - Nahoko Uchiyama
- National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-Ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Hiroshi Morita
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-Ku, Tokyo, 142-8501, Japan.
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2
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Tan YS, Ng MP, Tan CH, Tang WK, Sim KS, Yong KT, Krishnan P, Lim KH, Lim SH, Low YY. Quinoline, Indole, and Isogranatanine Alkaloids from Malayan Leuconotis eugeniifolia. JOURNAL OF NATURAL PRODUCTS 2024; 87:286-296. [PMID: 38284153 DOI: 10.1021/acs.jnatprod.3c00960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Nine new alkaloids, eugeniinalines A-H (1-8) and (+)-eburnamenine N-oxide (9), comprising one quinoline, six indole, and two isogranatanine alkaloids, were isolated from the stem-bark extract of the Malayan Leuconotis eugeniifolia. The structures and absolute configurations of these alkaloids were established based on the analysis of the spectroscopic data, GIAO NMR calculations, DP4+ probability analysis, TDDFT-ECD method, and X-ray diffraction analysis. Eugeniinaline A (1) represents a new pentacyclic quinoline alkaloid with a 6/6/5/6/7 ring system. Eugeniinaline G (7) and its seco-derivative, eugeniinaline H (8), were the first isogranatanine alkaloids isolated as natural products. The known alkaloids leucolusine (10) and melokhanine A (11) were found to be the same compound, based on comparison of the spectroscopic data of both compounds, with the absolute configuration of (7R, 20R, 21S). Eugeniinalines A and G (1 and 7) showed cytotoxic activity against the HT-29 cancer cell line with IC50 values of 7.1 and 7.2 μM, respectively.
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Affiliation(s)
- Yi-Sheng Tan
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Min-Phin Ng
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Chun-Hoe Tan
- Department of Biotechnology, Faculty of Applied Science, Lincoln University College, 47301 Petaling Jaya, Selangor, Malaysia
| | - Wai-Kit Tang
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Kae-Shin Sim
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Kien-Thai Yong
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Premanand Krishnan
- Foundation in Science, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
| | - Kuan-Hon Lim
- School of Pharmacy, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
| | - Siew-Huah Lim
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Yun-Yee Low
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
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3
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Hiroki M, Abulikemu A, Totsuka C, Hirasawa Y, Kaneda T, Morita H. Isovincathicine from Catharanthus roseus induces apoptosis in A549 cells. J Nat Med 2024; 78:216-225. [PMID: 37668823 DOI: 10.1007/s11418-023-01740-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 07/31/2023] [Indexed: 09/06/2023]
Abstract
A dimeric indole alkaloid, isovincathicine consisting of an aspidosperma type and modified iboga with C-7-C-20 connection type skeletons was first isolated from Catharanthus roseus, and the structure including stereochemistry was elucidated on the basis of spectroscopic data as well as DP4 statistical analysis. Isovincathicine inhibited cell proliferation in A549 cells. We investigated the detailed mode of action of isovincathicine-induced inhibitory effects on cell proliferation in A549 cells. Flow cytometric analysis showed that isovincathicine-treated cells accumulated in the G2 phase after 24 h, and the percentage of cells showing cell death increased after 48 h. Western blotting also showed increased expression of BimEL, an apoptosis-related protein, and decreased expression of Mcl-1 and Bcl-xL. Isovincathicine was suggested to induce apoptosis in A549 cells by a mechanism is similar to that of vinblastine.
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Affiliation(s)
- Mizuki Hiroki
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Aishanjiang Abulikemu
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Chihiro Totsuka
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Yusuke Hirasawa
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan.
| | - Toshio Kaneda
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Hiroshi Morita
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan.
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Lee SH, Chi HM. HFIP-Empowered One-Pot Synthesis of C4-Aryl-Substituted Tetrahydroquinolines with Propargylic Chlorides and Anilines. Org Lett 2023; 25:1083-1087. [PMID: 36794874 DOI: 10.1021/acs.orglett.2c04299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Transition-metal-free, practical one-pot synthesis of C4-aryl-substituted tetrahydroquinolines from simple anilines and readily accessible propargylic chlorides has been developed. Activation of the C-Cl bond by 1,1,1,3,3,3-hexafluoroisopropanol turned out to be the key interaction, which allowed C-N bond formation under an acidic medium. Propargylated aniline is formed as an intermediate via propargylation, and subsequential cyclization and reduction gave 4-arylated tetrahydroquinolines. To demonstrate the synthetic utility, total syntheses of aflaquinolone F and I have been accomplished.
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Affiliation(s)
- Seung Hoon Lee
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, South Korea
| | - Hyung Min Chi
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, South Korea.,Division of Advanced Materials Science, Pohang University of Science and Technology, Pohang 37673, South Korea
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Xu M, Peng R, Min Q, Hui S, Chen X, Yang G, Qin S. Bisindole natural products: A vital source for the development of new anticancer drugs. Eur J Med Chem 2022; 243:114748. [PMID: 36170798 DOI: 10.1016/j.ejmech.2022.114748] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/02/2022] [Accepted: 09/03/2022] [Indexed: 11/18/2022]
Abstract
Currently, the number of new cancer cases and deaths worldwide is increasing year on year. In addition to the requirement for cancer prevention, the top priority is still to seek the effective cure of cancer. In over a half century of constant exploration, increasing attention has been paid to the excellent anticancer activity of natural products, with more and more natural products isolated, identified and detected. For this study, the focus lies the natural products of bisindole, where two indole molecules are indirectly linked or directly polymerized, developing the diversity of structure and mechanism, accompanied with the better anticancer activity than monomers. There has been a long history of applying indirubin and vincristine in cancer treatment, verifying the anticancer effect of bisindoles. Vincribine, midostaurin and other anticancer drugs have also been developed and commercialized. In this paper, a review regarding the potential therapeutic effect of bisindole alkaloids extracted from various natural products was carried out, in which the progress made in research of 242 bisindole alkaloids for cancer treatment was introduced. These compounds may be applicable as medicinal products for clinical research in the future.
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Affiliation(s)
- Mengwei Xu
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China; Hubei Engineering Research Center of Traditional Chinese Medicine of South Hubei Province, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China
| | - Rui Peng
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China; Hubei Engineering Research Center of Traditional Chinese Medicine of South Hubei Province, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China
| | - Qing Min
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China; Hubei Engineering Research Center of Traditional Chinese Medicine of South Hubei Province, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China
| | - Siwen Hui
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China; Hubei Engineering Research Center of Traditional Chinese Medicine of South Hubei Province, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China; Department of Hepatology, China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, PR China
| | - Xin Chen
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China; Hubei Engineering Research Center of Traditional Chinese Medicine of South Hubei Province, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China
| | - Guang Yang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, PR China.
| | - Shuanglin Qin
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China; Hubei Engineering Research Center of Traditional Chinese Medicine of South Hubei Province, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China; Department of Hepatology, China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, PR China.
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Zlotos DP, Mandour YM, Jensen AA. Strychnine and its mono- and dimeric analogues: a pharmaco-chemical perspective. Nat Prod Rep 2022; 39:1910-1937. [PMID: 35380133 DOI: 10.1039/d1np00079a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covering: up to November 2021Since its isolation in 1818, strychnine has attracted the attention of a plethora of chemists and pharmacologists who have established its structure, developed total syntheses, and examined its complex pharmacology. While numerous reviews on structure elucidation and total synthesis of strychnine are available, reports on structure-activity relationships (SARs) of this fascinating alkaloid are rare. In this review, we present and discuss structures, synthetic approaches, metabolic transformations, and the diverse pharmacological actions of strychnine and its mono- and dimeric analogues. Particular attention is given to its SARs at glycine receptors (GlyRs) in light of recently published high-resolution structures of strychnine-GlyR complexes. Other pharmacological actions of strychnine and its derivatives, such as their antagonistic properties at nicotinic acetylcholine receptors (nAChRs), allosteric modulation of muscarinic acetylcholine receptors as well as anti-cancer and anti-plasmodial effects are also critically reviewed, and possible future developments in the field are discussed.
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Affiliation(s)
- Darius P Zlotos
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, The German University in Cairo, New Cairo City, 11835 Cairo, Egypt.
| | - Yasmine M Mandour
- School of Life and Medical Sciences, University of Hertfordshire hosted by Global Academic Foundation, New Administrative Capital, Cairo, Egypt
| | - Anders A Jensen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
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Song F, Bian Y, Liu J, Li Z, Zhao L, Fang J, Lai Y, Zhou M. Indole Alkaloids, Synthetic Dimers and Hybrids with Potential In Vivo Anticancer Activity. Curr Top Med Chem 2021; 21:377-403. [PMID: 32901583 DOI: 10.2174/1568026620666200908162311] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/02/2020] [Accepted: 08/12/2020] [Indexed: 11/22/2022]
Abstract
Indole, a heterocyclic organic compound, is one of the most promising heterocycles found in natural and synthetic sources since its derivatives possess fascinating structural diversity and various therapeutic properties. Indole alkaloids, synthetic dimers and hybrids could act on diverse targets in cancer cells, and consequently, possess potential antiproliferative effects on various cancers both in vitro and in vivo. Vinblastine, midostaurin, and anlotinib as the representative of indole alkaloids, synthetic dimers and hybrids respectively, have already been clinically applied to treat many types of cancers, demonstrating indole alkaloids, synthetic dimers and hybrids are useful scaffolds for the development of novel anticancer agents. Covering articles published between 2010 and 2020, this review emphasizes the recent development of indole alkaloids, synthetic dimers and hybrids with potential in vivo therapeutic application for cancers.
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Affiliation(s)
- Feng Song
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, Shandong, China
| | - Yunqiang Bian
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, Shandong, China
| | - Jing Liu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, Shandong, China
| | - Zhenghua Li
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, Shandong, China
| | - Li Zhao
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, Shandong, China
| | - Junman Fang
- School of Life Sciences, Dezhou University, Dezhou 253023, Shandong, China
| | - Yonghong Lai
- School of Life Sciences, Dezhou University, Dezhou 253023, Shandong, China
| | - Meng Zhou
- School of Life Sciences, Dezhou University, Dezhou 253023, Shandong, China
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8
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Zhang Y, Hu C. Anticancer activity of bisindole alkaloids derived from natural sources and synthetic bisindole hybrids. Arch Pharm (Weinheim) 2020; 353:e2000092. [PMID: 32468606 DOI: 10.1002/ardp.202000092] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/03/2020] [Accepted: 05/06/2020] [Indexed: 12/18/2022]
Abstract
The bisindole moiety, as a versatile pharmacophore, is one of the widespread heterocycles in naturally occurring and synthetic bioactive compounds. The bisindole alkaloids derived from natural sources possess structural and mechanistic diversity, and they were found to be generally more active than monoindole alkaloids against various cancer cell lines. Moreover, some bisindole alkaloids such as the tubulin inhibitors, vinorelbine and vinblastine, have already been approved for cancer therapy, suggesting that bisindole alkaloids are a significant source of anticancer agents and lead hits. Bisindole hybrids have the potential to overcome drug resistance, enhance efficiency, and reduce severe side effects. The bisindole-lactam hybrid midostaurin has already been approved for the treatment of adult patients with newly diagnosed acute myeloid leukemia who are FLT3 mutation-positive, highlighting the importance of bisindole hybrids in the development of novel anticancer agents. In this review, we present a brief account of the bisindole alkaloids derived from nature and of synthetic hybrids with potential anticancer activity developed in the recent 10 years.
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Affiliation(s)
- Yue Zhang
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chunhong Hu
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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Nugroho AE, Morita H. Computationally-assisted discovery and structure elucidation of natural products. J Nat Med 2019; 73:687-695. [PMID: 31093833 PMCID: PMC6713678 DOI: 10.1007/s11418-019-01321-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 05/07/2019] [Indexed: 12/30/2022]
Abstract
Computer hardware development coupled with the development of quantum chemistry, new computational models and algorithms, and user-friendly interfaces have lowered the barriers to the use of computation in the discovery and structure elucidation of natural products. Consequently, the use of computational chemistry software as a tool to discover and determine the structure of natural products has become more common in recent years. In this review, we provide several examples of recent studies that used computer technology to facilitate the discovery and structure determination of various natural products.
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Affiliation(s)
- Alfarius Eko Nugroho
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Hiroshi Morita
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo, 142-8501, Japan.
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Tang Y, Nugroho AE, Hirasawa Y, Tougan T, Horii T, Hadi AHA, Morita H. Leucophyllinines A and B, bisindole alkaloids from Leuconotis eugeniifolia. J Nat Med 2019; 73:533-540. [PMID: 30911994 DOI: 10.1007/s11418-019-01297-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 03/07/2019] [Indexed: 02/06/2023]
Abstract
Two new bisindole alkaloids, leucophyllinines A (1) and B (2) consisting of eburnane and quebrachamine-type skeletons were isolated from the bark of Leuconotis eugeniifolia, and their structures were elucidated on the basis of spectroscopic data. Leucophyllinines A and B showed antiplasmodial activities against Plasmodium falciparum 3D7.
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Affiliation(s)
- Yiming Tang
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Alfarius Eko Nugroho
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Yusuke Hirasawa
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Takahiro Tougan
- Department of Molecular Protozoology, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Toshihiro Horii
- Department of Molecular Protozoology, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - A Hamid A Hadi
- Department of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Hiroshi Morita
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo, 142-8501, Japan.
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Nugroho AE, Zhang W, Hirasawa Y, Tang Y, Wong CP, Kaneda T, Hadi AHA, Morita H. Bisleuconothines B-D, Modified Eburnane-Aspidosperma Bisindole Alkaloids from Leuconotis griffithii. JOURNAL OF NATURAL PRODUCTS 2018; 81:2600-2604. [PMID: 30362746 DOI: 10.1021/acs.jnatprod.8b00749] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Three new bisindole alkaloids, bisleuconothines B-D (1-3), were isolated from the bark of Leuconotis griffithii. Their structures were elucidated by 1D and 2D NMR spectroscopy and DFT calculations. Bisleuconothine B (1) is the first monoterpene indole alkaloid dimer featuring bridges between both C-16-C-10' and C-2-O-C-9'. All compounds were deemed noncytotoxic (IC50 > 10 μM) when tested against A549 human lung adenocarcinoma cells.
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Affiliation(s)
- Alfarius Eko Nugroho
- Hoshi University Faculty of Pharmaceutical Sciences , Hoshi University , Shinagawa, Tokyo 142-8501 , Japan
| | - Wenjia Zhang
- Hoshi University Faculty of Pharmaceutical Sciences , Hoshi University , Shinagawa, Tokyo 142-8501 , Japan
| | - Yusuke Hirasawa
- Hoshi University Faculty of Pharmaceutical Sciences , Hoshi University , Shinagawa, Tokyo 142-8501 , Japan
| | - Yiming Tang
- Hoshi University Faculty of Pharmaceutical Sciences , Hoshi University , Shinagawa, Tokyo 142-8501 , Japan
| | - Chin Piow Wong
- Hoshi University Faculty of Pharmaceutical Sciences , Hoshi University , Shinagawa, Tokyo 142-8501 , Japan
| | - Toshio Kaneda
- Hoshi University Faculty of Pharmaceutical Sciences , Hoshi University , Shinagawa, Tokyo 142-8501 , Japan
| | - A Hamid A Hadi
- Department of Chemistry, Faculty of Science , University Malaya , 50603 Kuala Lumpur , Malaysia
| | - Hiroshi Morita
- Hoshi University Faculty of Pharmaceutical Sciences , Hoshi University , Shinagawa, Tokyo 142-8501 , Japan
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12
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Nugroho AE, Matsumoto M, Sotozono Y, Kaneda T, Hadi AHA, Morita H. Cycloartane Triterpenoids with Anti-melanin Deposition Activity. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Bioactivity guided separation of the extract of Malaysian Garcinia sp. resulted in the isolation of 23-acetoxy-mangiferonic acid (1) and the absolute configuration of C-23 was elucidated to be R by the advanced Mosher's method. The anti-melanin deposition activity of 1 was caused by the down regulation of tyrosinase gene expression.
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Affiliation(s)
- Alfarius Eko Nugroho
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142–8501, Japan
| | - Misaki Matsumoto
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142–8501, Japan
| | - Yayoi Sotozono
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142–8501, Japan
| | - Toshio Kaneda
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142–8501, Japan
| | - A. Hamid A. Hadi
- Department of Chemistry, Faculty of Science, University Malaya, 50603 Kuala Lumpur, Malaysia
| | - Hiroshi Morita
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142–8501, Japan
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13
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Nugroho AE, Nakamura H, Inoue D, Hirasawa Y, Wong CP, Kaneda T, Hadi AHA, Morita H. Polyisoprenylated Acylphloroglucinols from Garcinia nervosa. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300324] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Two new polyisoprenylated acylphloroglucinols, 7- epi-isoxanthochymol and 7- epi-cycloxanthochymol (1 – 2), were isolated from the barks of Garcinia nervosa together with their 7-epimers isoxanthochymol (3) and cycloxanthochymol (4). Their structures were determined on the basis of NMR spectroscopic data. The cytotoxic activity of the isolated compounds against HL-60, MCF-7 (human breast adenocarcinoma), A549 (human lung adenocarcinoma) and HepG2 (human hepatocellular carcinoma) cells were evaluated, and all compounds showed cytotoxic activity against all cell lines.
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Affiliation(s)
- Alfarius Eko Nugroho
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142–8501, Japan
| | - Hitomi Nakamura
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142–8501, Japan
| | - Daisuke Inoue
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142–8501, Japan
| | - Yusuke Hirasawa
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142–8501, Japan
| | - Chin Piow Wong
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142–8501, Japan
| | - Toshio Kaneda
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142–8501, Japan
| | - A. Hamid A. Hadi
- Department of Chemistry, Faculty of Science, University Malaya, 50603 Kuala Lumpur, Malaysia
| | - Hiroshi Morita
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142–8501, Japan
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Nugroho AE, Inoue D, Wong CP, Hirasawa Y, Kaneda T, Shirota O, Hadi AHA, Morita H. Reinereins A and B, new onocerane triterpenoids from Reinwardtiodendron cinereum. J Nat Med 2018; 72:588-592. [PMID: 29453649 DOI: 10.1007/s11418-018-1188-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 02/05/2018] [Indexed: 10/18/2022]
Abstract
Bioactivity guided separation of Reinwardtiodendron cinereum barks methanol extract led to the isolation of two new onocerane triterpenoids, reinereins A and B (1 and 2), together with three known onocerane triterpenoids. Their structures were elucidated on the basis of NMR spectroscopic data. In vitro cytotoxic activities of the isolated compounds against several type of cancer cells were evaluated.
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Affiliation(s)
- Alfarius Eko Nugroho
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Daisuke Inoue
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Chin Piow Wong
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Yusuke Hirasawa
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Toshio Kaneda
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Osamu Shirota
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa, 769-2193, Japan
| | - A Hamid A Hadi
- Department of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Hiroshi Morita
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo, 142-8501, Japan.
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15
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Abstract
This chapter covers the literature on bisindole alkaloids consisting of monoterpenoid indoles, published up to June 2015. Bisindole alkaloids isolated from plants belonging to the families Apocynaceae and Loganiaceae, including Iboga-vobasine type, Aspidosperma-Aspidosperma type, eburnan-Aspidosperma type, Strychnos-Strychnos type, macroline-macroline type, and so on, are described. Some recent syntheses of monoterpenoid bisindole alkaloids are outlined as well.
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Affiliation(s)
- Mariko Kitajima
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Hiromitsu Takayama
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
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16
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Wong CP, Seki A, Horiguchi K, Shoji T, Arai T, Nugroho AE, Hirasawa Y, Sato F, Kaneda T, Morita H. Bisleuconothine A Induces Autophagosome Formation by Interfering with AKT-mTOR Signaling Pathway. JOURNAL OF NATURAL PRODUCTS 2015; 78:1656-1662. [PMID: 26176165 DOI: 10.1021/acs.jnatprod.5b00258] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We have previously reported that bisleuconothine A (Bis-A), a novel bisindole alkaloid isolated from Leuconotis griffithii, showed cytostatic activity in several cell lines. In this report, the mechanism of Bis-A-induced cytostatic activity was investigated in detail using A549 cells. Bis-A did not cause apoptosis, as indicated by analysis of annexin V and propidium iodide staining. Expression of all tested apoptosis-related proteins was also unaffected by Bis-A treatment. Bis-A was found to increase LC3 lipidation in MCF7 cells as well as A549 cells, suggesting that Bis-A cytostatic activity may be due to induction of autophagy. Subsequent investigation via Western blotting and immunofluorescence staining indicated that Bis-A induced formation but prevented degradation of autophagosomes. Mechanistic studies showed that Bis-A down-regulated phosphorylation of protein kinase B (AKT) and its downstream kinase, PRAS40, which is an mTOR repressor. Moreover, phosphorylation of p70S6K, an mTOR-dependent kinase, was also down-regulated. Down-regulation of these kinases suggests that the increase in LC3 lipidation may be due to mTOR deactivation. Thus, the cytostatic activity shown by Bis-A may be attributed to its induction of autophagosome formation. The Bis-A-induced autophagosome formation was suggested to be caused by its interference with the AKT-mTOR signaling pathway.
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Affiliation(s)
- Chin Piow Wong
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142-8501, Japan
| | - Ari Seki
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142-8501, Japan
| | - Kaori Horiguchi
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142-8501, Japan
| | - Tomokazu Shoji
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142-8501, Japan
| | - Takashi Arai
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142-8501, Japan
| | - Alfarius Eko Nugroho
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142-8501, Japan
| | - Yusuke Hirasawa
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142-8501, Japan
| | - Fumiaki Sato
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142-8501, Japan
| | - Toshio Kaneda
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142-8501, Japan
| | - Hiroshi Morita
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa-ku, Tokyo 142-8501, Japan
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17
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Gan CY, Low YY, Thomas NF, Kam TS. Rhazinilam-Leuconolam-Leuconoxine Alkaloids from Leuconotis griffithii. JOURNAL OF NATURAL PRODUCTS 2013; 76:957-964. [PMID: 23647487 DOI: 10.1021/np400214y] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Eight new indole alkaloids (1-8) belonging to the rhazinilam-leuconolam-leuconoxine group, in addition to 52 other alkaloids, were isolated from the stem-bark extract of Leuconotis griffithii, viz., nor-rhazinicine (1), 5,21-dihydrorhazinilam-N-oxide (2), 3,14-dehydroleuconolam (3), and leuconodines A-E (4-8). The structures of these alkaloids were determined using NMR and MS analyses and in some instances confirmed by X-ray diffraction analyses. Alkaloids 1, 5, and 7 showed only moderate to weak cytotoxicity toward KB cells (IC50 12-18 μg/mL), while 8 showed moderate activity in reversing MDR in vincristine-resistant KB cells.
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Affiliation(s)
- Chew-Yan Gan
- Department of Chemistry, University of Malaya, Kuala Lumpur, Malaysia
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18
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Ishikura M, Abe T, Choshi T, Hibino S. Simple indole alkaloids and those with a non-rearranged monoterpenoid unit. Nat Prod Rep 2013; 30:694-752. [DOI: 10.1039/c3np20118j] [Citation(s) in RCA: 269] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Kitajima M, Iwai M, Kogure N, Kikura-Hanajiri R, Goda Y, Takayama H. Aspidosperma–aspidosperma-type bisindole alkaloids from Voacanga africana. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.10.061] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Nugroho AE, Hirasawa Y, Piow WC, Kaneda T, Hadi AHA, Shirota O, Ekasari W, Widyawaruyanti A, Morita H. Antiplasmodial indole alkaloids from Leuconotis griffithii. J Nat Med 2011; 66:350-3. [PMID: 21830090 DOI: 10.1007/s11418-011-0574-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Accepted: 07/24/2011] [Indexed: 10/17/2022]
Abstract
A new indole alkaloid, leucoridine A N-oxide (1), consisting of two units of a strychnan type of skeleton, was isolated from the leaves of Leuconotis griffithii. Its structure was elucidated by various spectroscopic means such as NMR and MS, and also by chemical means. Antiplasmodial activity against Plasmodium falciparum 3D7 of indole alkaloids isolated from L. griffithii was investigated.
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Affiliation(s)
- Alfarius E Nugroho
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo 142-8501, Japan
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Deguchi J, Shoji T, Nugroho AE, Hirasawa Y, Hosoya T, Shirota O, Awang K, Hadi AHA, Morita H. Eucophylline, a Tetracyclic Vinylquinoline Alkaloid from Leuconotis eugenifolius. JOURNAL OF NATURAL PRODUCTS 2010; 73:1727-1729. [PMID: 20836516 DOI: 10.1021/np100458b] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Eucophylline (1), a new tetracyclic vinylquinoline alkaloid, was isolated from the bark of Leuconotis eugenifolius together with leucophyllidine (2). The structure and absolute configuration of 1 were elucidated on the basis of 2D NMR correlations and simulated CD analysis. Leucophyllidine (2) showed iNOS inhibitory activity and decreased the iNOS protein expression dose-dependently.
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Affiliation(s)
- Jun Deguchi
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41 Shinagawa, Tokyo 142-8501, Japan
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