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Gribble GW. Naturally Occurring Organohalogen Compounds-A Comprehensive Review. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2023; 121:1-546. [PMID: 37488466 DOI: 10.1007/978-3-031-26629-4_1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
The present volume is the third in a trilogy that documents naturally occurring organohalogen compounds, bringing the total number-from fewer than 25 in 1968-to approximately 8000 compounds to date. Nearly all of these natural products contain chlorine or bromine, with a few containing iodine and, fewer still, fluorine. Produced by ubiquitous marine (algae, sponges, corals, bryozoa, nudibranchs, fungi, bacteria) and terrestrial organisms (plants, fungi, bacteria, insects, higher animals) and universal abiotic processes (volcanos, forest fires, geothermal events), organohalogens pervade the global ecosystem. Newly identified extraterrestrial sources are also documented. In addition to chemical structures, biological activity, biohalogenation, biodegradation, natural function, and future outlook are presented.
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Affiliation(s)
- Gordon W Gribble
- Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA.
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2
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Hsu CM, Lin JJ, Su JH, Liu CI. 13-Acetoxysarcocrassolide induces apoptosis in human hepatocellular carcinoma cells through mitochondrial dysfunction and suppression of the PI3K/AKT/mTOR/p70S6K signalling pathway. PHARMACEUTICAL BIOLOGY 2022; 60:2276-2285. [PMID: 36416062 PMCID: PMC9704080 DOI: 10.1080/13880209.2022.2145489] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 09/20/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
CONTEXT 13-Acetoxysarcocrasside, isolated from the Taiwanese soft coral Sarcophyton crassocaule Moser (Alcyoniidae), has biological activity and induces apoptosis in hepatocellular carcinoma cells. OBJECTIVE To elucidate the mechanisms underlying apoptosis induced by 13-acetoxysarcocrasside in HA22T and HepG2 hepatocellular carcinoma cells. MATERIAL AND METHODS MTT and morphology assays were employed to assess the anti-proliferative effects of 13-acetoxysarcocrasside (1-5 μM). TUNEL/DAPI staining and annexin V-fluorescein isothiocyanate/propidium iodide staining were used to detect apoptosis. Cells were treated with13-acetoxysarcocrassolide (0, 1, 2, and 4 μM) for 24 h, and the mechanism of cells apoptotic was detected by western blotting. Cells treated with DMSO were the control. RESULTS Survival of the cells decreased with the addition of 13-acetoxysarcocrassolide, and at 4 μM cell survival was inhibited by approximately 40%. After treatment of cells with 13-acetoxysarcocrassolide, the incidence of early/late apoptosis to be 0.3%/0.5%∼5.4%/22.7% for HA22T cells, in the HePG2 cells were 0.6%/0.2%∼14.4%/23.7%. Western blotting analysis showed that the expression of Bax, Bad, cleaved caspase 3, cleaved caspase 9, cleaved-PARP-1, cytochrome c, and p-4EBP1 increased with an increasing concentration of 13-acetoxysarcocrasside (0, 1, 2, and 4 μM), whereas that of Bcl-2, Bcl-xL, Mcl-1, p-Bad, p-PI3K, p-AKT, p-mTOR, p-70S6K, p-S6, p-eIF4E, and p-eIF4B decreased. DISCUSSION AND CONCLUSIONS Apoptosis induced by 13-acetoxysarcocrassolide in HA22T and HepG2 cells is mediated by mitochondrial dysfunction and inactivation of the PI3K/AKT/mTOR/p70S6K pathway. The potential of 13-acetoxysarcocrassolide as a chemotherapeutic agent should be further assessed for use in human hepatocellular carcinoma treatment.
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Affiliation(s)
- Chang-Min Hsu
- Antai Medical Care Corporation, Antai Tian-Sheng Memorial Hospital, Pingtung, Taiwan
| | - Jen-Jie Lin
- Department of Research & Development, Yu Jun Biotechnology Co., Ltd, Pingtung, Taiwan
| | - Jui-Hsin Su
- Department of Science Education, National Museum of Marine Biology and Aquarium, Pingtung, Taiwan
| | - Chih-I Liu
- Department of Nursing, Meiho University, Pingtung, Taiwan
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3
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Fares Amer N, Luzzatto Knaan T. Natural Products of Marine Origin for the Treatment of Colorectal and Pancreatic Cancers: Mechanisms and Potential. Int J Mol Sci 2022; 23:ijms23148048. [PMID: 35887399 PMCID: PMC9323154 DOI: 10.3390/ijms23148048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/17/2022] [Accepted: 07/17/2022] [Indexed: 12/24/2022] Open
Abstract
Gastrointestinal cancer refers to malignancy of the accessory organs of digestion, and it includes colorectal cancer (CRC) and pancreatic cancer (PC). Worldwide, CRC is the second most common cancer among women and the third most common among men. PC has a poor prognosis and high mortality, with 5-year relative survival of approximately 11.5%. Conventional chemotherapy treatments for these cancers are limited due to severe side effects and the development of drug resistance. Therefore, there is an urgent need to develop new and safe drugs for effective treatment of PC and CRC. Historically, natural sources—plants in particular—have played a dominant role in traditional medicine used to treat a wide spectrum of diseases. In recent decades, marine natural products (MNPs) have shown great potential as drugs, but drug leads for treating various types of cancer, including CRC and PC, are scarce. To date, marine-based drugs have been used against leukemia, metastatic breast cancer, soft tissue sarcoma, and ovarian cancer. In this review, we summarized existing studies describing MNPs that were found to have an effect on CRC and PC, and we discussed the potential mechanisms of action of MNPs as well as future prospects for their use in treating these cancers.
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Possible Functional Roles of Patellamides in the Ascidian-Prochloron Symbiosis. Mar Drugs 2022; 20:md20020119. [PMID: 35200648 PMCID: PMC8875616 DOI: 10.3390/md20020119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/27/2022] [Accepted: 01/27/2022] [Indexed: 02/04/2023] Open
Abstract
Patellamides are highly bioactive compounds found along with other cyanobactins in the symbiosis between didemnid ascidians and the enigmatic cyanobacterium Prochloron. The biosynthetic pathway of patellamide synthesis is well understood, the relevant operons have been identified in the Prochloron genome and genes involved in patellamide synthesis are among the most highly transcribed cyanobacterial genes in hospite. However, a more detailed study of the in vivo dynamics of patellamides and their function in the ascidian-Prochloron symbiosis is complicated by the fact that Prochloron remains uncultivated despite numerous attempts since its discovery in 1975. A major challenge is to account for the highly dynamic microenvironmental conditions experienced by Prochloron in hospite, where light-dark cycles drive rapid shifts between hyperoxia and anoxia as well as pH variations from pH ~6 to ~10. Recently, work on patellamide analogues has pointed out a range of different catalytic functions of patellamide that could prove essential for the ascidian-Prochloron symbiosis and could be modulated by the strong microenvironmental dynamics. Here, we review fundamental properties of patellamides and their occurrence and dynamics in vitro and in vivo. We discuss possible functions of patellamides in the ascidian-Prochloron symbiosis and identify important knowledge gaps and needs for further experimental studies.
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Dyshlovoy SA. Recent Updates on Marine Cancer-Preventive Compounds. Mar Drugs 2021; 19:md19100558. [PMID: 34677457 PMCID: PMC8537284 DOI: 10.3390/md19100558] [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: 09/09/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 12/31/2022] Open
Abstract
The natural compounds derived from marine organisms often exhibit unique chemical structures and potent biological activities. Cancer-preventive activity is one of the rather new activities that has emerged and been extensively studied over the last decades. This review summarizes the recent updates on the marine chemopreventive compounds covering the relevant literature published in 2013-2021 and following the previous comprehensive review by Stonik and Fedorov (Marine Drugs 2014, 12, 636-671). In the current article, only the molecules having an effect on malignant transformation (or related pathway and molecules), cancer stem cells, or carcinogen-induced in vivo tumor development were considered to be "true" cancer-preventive compounds and were, therefore, reviewed. Additionally, particular attention has been given to the molecular mechanisms of chemoprevention, executed by the reported marine compounds.
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Affiliation(s)
- Sergey A Dyshlovoy
- Laboratory of Pharmacology, A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, Russia
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6
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Zhou S, Huang G, Chen G. Synthesis and anti-tumor activity of marine alkaloids. Bioorg Med Chem Lett 2021; 41:128009. [DOI: 10.1016/j.bmcl.2021.128009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 03/20/2021] [Accepted: 03/28/2021] [Indexed: 12/16/2022]
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Paliwal D, Srivastava S, Sharma PK, Ahmad I. Marine Originated Fused Heterocyclic: Prospective Bioactivity against Cancer. CURRENT TRADITIONAL MEDICINE 2021. [DOI: 10.2174/2215083805666190328205729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The deep Sea has several herbal sources such as marine organisms. These marine
sources possibly have effective anticancer properties. The fused heterocyclic ring with marine
source has special characteristics with minimum toxicity and with maximum anticancer
effects. The review focused on and classified the prospective lead compounds which have
shown a promising therapeutic range as anticancer agents in clinical and preclinical trials.
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Affiliation(s)
- Deepika Paliwal
- Department of Pharmacy, School of Medical & Allied Sciences, Galgotias University, Greater Noida, 201310, India
| | - Saurabh Srivastava
- Department of Oral & Maxillofacial Surgery, King George’s Medical University, Lucknow, UP 226003, India
| | - Pramod Kumar Sharma
- Department of Pharmacy, School of Medical & Allied Sciences, Galgotias University, Greater Noida, 201310, India
| | - Irfan Ahmad
- Department of Clinical Laboratory Science, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
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8
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Katanaev VL, Blagodatski A, Xu J, Khotimchenko Y, Koval A. Mining Natural Compounds to Target WNT Signaling: Land and Sea Tales. Handb Exp Pharmacol 2021; 269:215-248. [PMID: 34455487 DOI: 10.1007/164_2021_530] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
WNT signaling plays paramount roles in organism development, physiology, and disease, representing a highly attractive target for drug development. However, no WNT-modulating drugs have been approved, with several candidates trudging through the early clinical trials. This delay instigates alternative approaches to discover WNT-modulating drugs. Natural products were the source of therapeutics for centuries, but the chemical diversity they offer, especially when looking at different taxonomic groups and habitats, is still to a large extent unexplored. These considerations urge researchers to screen natural compounds for the WNT-modulatory activities. Since several reviews on such endeavors exist, we here have attempted to present these efforts as "Land and sea tales" (citing the book title by Rudyard Kipling) superimposing them onto the traditional pipeline of drug discovery and early development. In doing so, we illustrate each step of the pipeline with case studies stemming from our own research. It will become obvious that several steps of the pipeline need to be modified when applied to natural products rather than to synthetic libraries. Yet the main message of this chapter is that natural compounds represent a powerful source for the WNT signaling modulators and can be developed towards drug candidates against WNT-dependent maladies.
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Affiliation(s)
- Vladimir L Katanaev
- Department of Cell Physiology and Metabolism, Faculty of Medicine, Translational Research Centre in Oncohaematology, University of Geneva, Geneva, Switzerland.
- School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia.
| | - Artem Blagodatski
- School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences Pushchino, Moscow, Russia
| | - Jiabin Xu
- Department of Cell Physiology and Metabolism, Faculty of Medicine, Translational Research Centre in Oncohaematology, University of Geneva, Geneva, Switzerland
| | - Yuri Khotimchenko
- School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
- National Scientific Center for Marine Biology, Far Eastern Branch of Russian Academy of Sciences, Vladivostok, Russia
| | - Alexey Koval
- Department of Cell Physiology and Metabolism, Faculty of Medicine, Translational Research Centre in Oncohaematology, University of Geneva, Geneva, Switzerland
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9
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Mubarak MQE, Gérard EF, Blanford CF, Hay S, de Visser SP. How Do Vanadium Chloroperoxidases Generate Hypochlorite from Hydrogen Peroxide and Chloride? A Computational Study. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03490] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- M. Qadri E. Mubarak
- Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
- Department of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Emilie F. Gérard
- Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
- Department of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Christopher F. Blanford
- Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
- Department of Materials, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Sam Hay
- Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Sam P. de Visser
- Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
- Department of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
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Ma Y, Wen J, Wang J, Wang C, Zhang Y, Zhao L, Li J, Feng X. Asiaticoside Antagonizes Proliferation and Chemotherapeutic Drug Resistance in Hepatocellular Carcinoma (HCC) Cells. Med Sci Monit 2020; 26:e924435. [PMID: 32862187 PMCID: PMC7480090 DOI: 10.12659/msm.924435] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is the fifth most prevalent malignant tumor in China after lung cancer, gastric cancer, esophageal cancer, and breast cancer, and has a high mortality rate. Though there are a series of therapeutic strategies is now available for HCC in clinical practice, the 5-year survival rate after surgery is still low. In addition, multi-drug resistance (MDR) is one of the most important factors responsible for the low survival rate and poor therapy response in HCC. Hence, novel treatment strategies and molecules for HCC need to be developed. Material/Methods We assessed the effect of asiaticoside, a natural product derived from Centella asiatica (L.) Urban, on HCC cell proliferation and drug resistance. Results Our data indicated that asiaticoside significantly inhibited the proliferation of HCC cell lines QGY-7703 and Bel-7402 in a dose- and time-dependent manner. Moreover, asiaticoside significantly induced apoptosis in QGY-7703 and Bel-7402 cells. Treatment with asiaticoside also caused G1 cell cycle arrest in QGY-7703 and Bel-7402 cells. Western blot assay results indicated that the mechanism underlying the effects of asiaticoside involves inhibiting the activity of the PI3K/Akt and MAPK/ERK pathways. Furthermore, asiaticoside significantly antagonized P-gp-mediated MDR in HCC cells. Conclusions Our results suggest that asiaticoside has the potential to be applied in the treatment of HCC patients, but further evidence is needed to confirm our results, particularly in vivo efficacy.
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Affiliation(s)
- Ying Ma
- Second Department of Hepatopathy, Tianjin Second People's Hospital, Tianjin, China (mainland)
| | - Jun Wen
- Second Department of Hepatopathy, Tianjin Second People's Hospital, Tianjin, China (mainland)
| | - Jing Wang
- Second Department of Hepatopathy, Tianjin Second People's Hospital, Tianjin, China (mainland)
| | - Chunyan Wang
- Second Department of Hepatopathy, Tianjin Second People's Hospital, Tianjin, China (mainland)
| | - Yan Zhang
- Second Department of Hepatopathy, Tianjin Second People's Hospital, Tianjin, China (mainland)
| | - Lili Zhao
- Second Department of Hepatopathy, Tianjin Second People's Hospital, Tianjin, China (mainland)
| | - Jia Li
- Second Department of Hepatopathy, Tianjin Second People's Hospital, Tianjin, China (mainland)
| | - Xue Feng
- Second Department of Hepatopathy, Tianjin Second People's Hospital, Tianjin, China (mainland)
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Sharifi S, Mostafavi PG, Tarasi R, Moradi AM, Givianrad MH, Farimani MM, Ebrahimi SN, Hamburger M, Niknejad H. Purified compounds from marine organism sea pen induce apoptosis in human breast cancer cell MDA-MB-231 and cervical cancer cell Hela. Eur J Pharmacol 2020; 877:173075. [PMID: 32222494 DOI: 10.1016/j.ejphar.2020.173075] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 03/18/2020] [Accepted: 03/19/2020] [Indexed: 10/24/2022]
Abstract
Marine organisms are an important source of chemical compounds which are appropriate for use as therapeutic agents. Among them, Sea pens produce valuable chemical compounds being used as anti-cancer drugs. The aim of this study was to investigate anti-cancer property of extracted and purified compounds from marine organism Sea pen and evaluate their effects on inducing of apoptosis. The extracts were prepared from dried colony of Virgularia gustaviana. The compounds (3β)-Cholest,5en,3ol (cholesterol) (15 mg), Hexadecanoic acid (2.5 mg) and 2-Hexadecanol (10.7 mg) were identified by GC-MS and NMR. The cytotoxic effects of the compounds were evaluated on Hela and MDA-Mb-231 human cancer cell lines with MTT assay. Immunocytochemistry and Western Blot analyses were used to evaluate the expression of apoptosis related markers Caspase 3, Caspase 8, Bax and BCL2 in cancer cells after treating with three compounds. The purified compounds reduced viability of human breast cancer cell line MDA-MB-231 and human cervical cancer cell line Hela concentration-dependently. 2-Hexadecanol reduced significantly the viability of both cancer cell lines in comparison to the other purified compounds. Treatment of cancer cells with the three purified compounds increased the expression of caspase-3, caspase-8 and Bax proteins and decreased the relative Bcl-2/Bax ratio, demonstrating induction of apoptosis as possible mechanism of action. According to the results, three purified compounds inhibit the growth of cancer cells by inducing of apoptosis pathway; an effect which needs to be further investigated in the future studies.
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Affiliation(s)
- Sharareh Sharifi
- Department of Marine Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Pargol Ghavam Mostafavi
- Department of Marine Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Roghayeh Tarasi
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Mashinchian Moradi
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | | | - Mahdi Moridi Farimani
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Samad Nejad Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Matthias Hamburger
- Division of Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Hassan Niknejad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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12
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Zhou S, Huang G. Retracted Article: The synthesis and biological activity of marine alkaloid derivatives and analogues. RSC Adv 2020; 10:31909-31935. [PMID: 35518151 PMCID: PMC9056551 DOI: 10.1039/d0ra05856d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 07/29/2020] [Indexed: 12/11/2022] Open
Abstract
The ocean is the origin of life, with a unique ecological environment, which has given birth to a wealth of marine organisms. The ocean is an important source of biological resources and tens of thousands of monomeric compounds have been separated from marine organisms using modern separation technology. Most of these monomeric compounds have some kind of biological activity that has attracted extensive attention from researchers. Marine alkaloids are a kind of compound that can be separated from marine organisms. They have complex and special chemical structures, but at the same time, they can show diversity in biological activities. The biological activities of marine alkaloids mainly manifest in the form of anti-tumor, anti-fungus, anti-viral, anti-malaria, and anti-osteoporosis properties. Many marine alkaloids have good medicinal prospects and can possibly be used as anti-tumor, anti-viral, and anti-fungal clinical drugs or as lead compounds. The limited amounts of marine alkaloids that can be obtained by separation, coupled with the high cytotoxicity and low selectivity of these lead compounds, has restricted the clinical research and industrial development of marine alkaloids. Marine alkaloid derivatives and analogues have been obtained via rational drug design and chemical synthesis, to make up for the shortcomings of marine alkaloids; this has become an urgent subject for research and development. This work systematically reviews the recent developments relating to marine alkaloid derivatives and analogues in the field of medical chemistry over the last 10 years (2010–2019). We divide marine alkaloid derivatives and analogues into five types from the point-of-view of biological activity and elaborated on these activities. We also briefly discuss the optimization process, chemical synthesis, biological activity evaluation, and structure–activity relationship (SAR) of each of these compounds. The abundant SAR data provides reasonable approaches for the design and development of new biologically active marine alkaloid derivatives and analogues. The ocean is the origin of life, with a unique ecological environment, which has given birth to a wealth of marine organisms.![]()
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Affiliation(s)
- Shiyang Zhou
- Chongqing Key Laboratory of Green Synthesis and Application
- Active Carbohydrate Research Institute
- College of Chemistry
- Chongqing Normal University
- Chongqing 401331
| | - Gangliang Huang
- Chongqing Key Laboratory of Green Synthesis and Application
- Active Carbohydrate Research Institute
- College of Chemistry
- Chongqing Normal University
- Chongqing 401331
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Xie S, Bernhardt PV, Gahan LR, Williams CM. Contemplating 1,2,4-Thiadiazole-Inspired Cyclic Peptide Mimics: A Computational Investigation. Aust J Chem 2019. [DOI: 10.1071/ch19248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Marine derived cyclic peptides have inspired chemists for decades as the cavitand architecture can be compared with macrocyclic ligands, and hence easily conceived as mediators of metal-ion transport. Lissoclinamide 5 and ascidiacyclamide are two such cyclic peptides that have received much attention both for their metal ion complexation properties and biological activity; the metal ion binding properties of mimics of these two systems have been reported. Reported herein is a computational study aimed at evaluating the stability, and potential for copper(ii) ion binding by lissoclinamide 5 mimics that substitute the naturally occurring 4-carboxy-1,3-thiazole units for novel valine- and phenylalanine-derived 1,2,4-thiadiazole units. Our results suggest that one lissoclinamide 5 mimic, 1,2,4-thiadiazole (TDA)-lissoclinamide 9, may be capable of forming a complex with one CuII ion, [Cu(9-H)(H2O)]+. A complex with two CuII ions, [Cu2(9-H)(μ-OH)]2+, was also considered. These results set the stage for synthetic and experimental metal binding studies.
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Olotu FA, Munsamy G, Soliman MES. Does Size Really Matter? Probing the Efficacy of Structural Reduction in the Optimization of Bioderived Compounds - A Computational "Proof-of-Concept". Comput Struct Biotechnol J 2018; 16:573-586. [PMID: 30546858 PMCID: PMC6280605 DOI: 10.1016/j.csbj.2018.11.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/14/2018] [Accepted: 11/18/2018] [Indexed: 02/07/2023] Open
Abstract
Over the years, numerous synthetic approaches have been utilized in drug design to improve the pharmacological properties of naturally derived compounds and most importantly, minimize toxic effects associated with their transition to drugs. The reduction of complex bioderived compounds to simpler bioactive fragments has been identified as a viable strategy to develop lead compounds with improved activities and minimal toxicities. Although this ‘reductive’ strategy has been widely exemplified, underlying biological events remain unresolved, hence the unanswered question remains how does the fragmentation of a natural compound improve its bioactivity and reduce toxicities? Herein, using a combinatorial approach, we initialize a computational “proof-of- concept” to expound the differential pharmacological and antagonistic activities of a natural compound, Anguinomycin D, and its synthetic fragment, SB640 towards Exportin Chromosome Region Maintenance 1 (CRM1). Interestingly, our findings revealed that in comparison with the parent compound, SB640 exhibited improved pharmacological attributes, while toxicities and off-target activities were relatively minimal. Moreover, we observed that the reduced size of SB640 allowed ‘deep access’ at the Nuclear Export Signals (NES) binding groove of CRM1, which favored optimal and proximal positioning towards crucial residues while the presence of the long polyketide tail in Anguinomycin D constrained its burial at the hydrophobic groove. Furthermore, with regards to their antagonistic functions, structural inactivation (rigidity) was more pronounced in CRM1 when bound by SB640 as compared to Anguinomycin D. These findings provide essential insights that portray synthetic fragmentation of natural compounds as a feasible approach towards the discovery of potential leads in disease treatment.
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Affiliation(s)
- Fisayo A Olotu
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban 4001, South Africa
| | - Geraldene Munsamy
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban 4001, South Africa
| | - Mahmoud E S Soliman
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban 4001, South Africa
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Timmins A, Quesne MG, Borowski T, de Visser SP. Group Transfer to an Aliphatic Bond: A Biomimetic Study Inspired by Nonheme Iron Halogenases. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01673] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Amy Timmins
- The Manchester Institute of Biotechnology and School of Chemical Engineering and Analytical Science, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Matthew G. Quesne
- The Manchester Institute of Biotechnology and School of Chemical Engineering and Analytical Science, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Tomasz Borowski
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland
| | - Sam P. de Visser
- The Manchester Institute of Biotechnology and School of Chemical Engineering and Analytical Science, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom
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Peng X, Wang Z, Liu Y, Peng X, Liu Y, Zhu S, Zhang Z, Qiu Y, Jin M, Wang R, Zhang Q, Kong D. Oxyfadichalcone C inhibits melanoma A375 cell proliferation and metastasis via suppressing PI3K/Akt and MAPK/ERK pathways. Life Sci 2018; 206:35-44. [DOI: 10.1016/j.lfs.2018.05.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 05/09/2018] [Accepted: 05/16/2018] [Indexed: 10/16/2022]
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17
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A Comparative Review on the Catalytic Mechanism of Nonheme Iron Hydroxylases and Halogenases. Catalysts 2018. [DOI: 10.3390/catal8080314] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Enzymatic halogenation and haloperoxidation are unusual processes in biology; however, a range of halogenases and haloperoxidases exist that are able to transfer an aliphatic or aromatic C–H bond into C–Cl/C–Br. Haloperoxidases utilize hydrogen peroxide, and in a reaction with halides (Cl−/Br−), they react to form hypohalides (OCl−/OBr−) that subsequently react with substrate by halide transfer. There are three types of haloperoxidases, namely the iron-heme, nonheme vanadium, and flavin-dependent haloperoxidases that are reviewed here. In addition, there are the nonheme iron halogenases that show structural and functional similarity to the nonheme iron hydroxylases and form an iron(IV)-oxo active species from a reaction of molecular oxygen with α-ketoglutarate on an iron(II) center. They subsequently transfer a halide (Cl−/Br−) to an aliphatic C–H bond. We review the mechanism and function of nonheme iron halogenases and hydroxylases and show recent computational modelling studies of our group on the hectochlorin biosynthesis enzyme and prolyl-4-hydroxylase as examples of nonheme iron halogenases and hydroxylases. These studies have established the catalytic mechanism of these enzymes and show the importance of substrate and oxidant positioning on the stereo-, chemo- and regioselectivity of the reaction that takes place.
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18
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Xie S, Savchenko AI, Krenske EH, Grange RL, Gahan LR, Williams CM. Developing Cyclic Peptide Heteroatom Interchange: Synthesis and DFT Modelling of a HI‐Ascidiacyclamide Isomer. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800449] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Sida Xie
- School of Chemistry and Molecular Biosciences University of Queensland 4072 Brisbane Australia
- Southwest Forestry University 650224 Kunming P. R. China
| | - Andrei I. Savchenko
- School of Chemistry and Molecular Biosciences University of Queensland 4072 Brisbane Australia
| | - Elizabeth H. Krenske
- School of Chemistry and Molecular Biosciences University of Queensland 4072 Brisbane Australia
| | - Rebecca L. Grange
- School of Chemistry and Molecular Biosciences University of Queensland 4072 Brisbane Australia
| | - Lawrence R. Gahan
- School of Chemistry and Molecular Biosciences University of Queensland 4072 Brisbane Australia
| | - Craig M. Williams
- School of Chemistry and Molecular Biosciences University of Queensland 4072 Brisbane Australia
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Xie S, Savchenko AI, Kerscher M, Grange RL, Krenske EH, Harmer JR, Bauer MJ, Broit N, Watters DJ, Boyle GM, Bernhardt PV, Parsons PG, Comba P, Gahan LR, Williams CM. Heteroatom-Interchanged Isomers of Lissoclinamide 5: Copper(II) Complexation, Halide Binding, and Biological Activity. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701659] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sida Xie
- School of Chemistry and Molecular Biosciences; The University of Queensland; 4072 Brisbane Queensland Australia
- Southwest Forestry University; 650224 Kunming P. R. China
| | - Andrei I. Savchenko
- School of Chemistry and Molecular Biosciences; The University of Queensland; 4072 Brisbane Queensland Australia
| | - Marion Kerscher
- Anorganisch-Chemisches Institut and Interdisciplinary Centre for Scientific Computing; Universität Heidelberg; INF 270; 69120 Heidelberg Germany
| | - Rebecca L. Grange
- School of Chemistry and Molecular Biosciences; The University of Queensland; 4072 Brisbane Queensland Australia
| | - Elizabeth H. Krenske
- School of Chemistry and Molecular Biosciences; The University of Queensland; 4072 Brisbane Queensland Australia
| | - Jeffrey R. Harmer
- Center for Advanced Imaging; The University of Queensland; 4072 Brisbane Queensland Australia
| | - Michelle J. Bauer
- QIMR Berghofer Medical Research Institute; PO Royal Brisbane Hospital; 4029 Brisbane Queensland Australia
| | - Natasa Broit
- QIMR Berghofer Medical Research Institute; PO Royal Brisbane Hospital; 4029 Brisbane Queensland Australia
| | - Dianne J. Watters
- School of Environment and Science; Griffith University; 4111 Brisbane QLD Australia
| | - Glen M. Boyle
- QIMR Berghofer Medical Research Institute; PO Royal Brisbane Hospital; 4029 Brisbane Queensland Australia
| | - Paul V. Bernhardt
- School of Chemistry and Molecular Biosciences; The University of Queensland; 4072 Brisbane Queensland Australia
| | - Peter G. Parsons
- QIMR Berghofer Medical Research Institute; PO Royal Brisbane Hospital; 4029 Brisbane Queensland Australia
| | - Peter Comba
- Anorganisch-Chemisches Institut and Interdisciplinary Centre for Scientific Computing; Universität Heidelberg; INF 270; 69120 Heidelberg Germany
| | - Lawrence R. Gahan
- School of Chemistry and Molecular Biosciences; The University of Queensland; 4072 Brisbane Queensland Australia
| | - Craig M. Williams
- School of Chemistry and Molecular Biosciences; The University of Queensland; 4072 Brisbane Queensland Australia
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20
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Chen Y, Zhou Q, Zhang L, Zhong Y, Fan G, Zhang Z, Wang R, Jin M, Qiu Y, Kong D. Stellettin B induces apoptosis in human chronic myeloid leukemia cells via targeting PI3K and Stat5. Oncotarget 2018; 8:28906-28921. [PMID: 28423649 PMCID: PMC5438702 DOI: 10.18632/oncotarget.15957] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 02/15/2017] [Indexed: 12/30/2022] Open
Abstract
Novel agents are still urgently expected for therapy of chronic myeloid leukemia (CML). The in vitro anti-leukemia activity of Stellettin B (Stel B), a triterpenoid we isolated from marine sponge Jaspis stellifera, on human CML K562 and KU812 cells was recently investigated. Stel B inhibited K562 and KU812 cell proliferation with IC50 as 0.035 μM and 0.95 μM respectively. While no obvious cell cycle arrest was observed, apoptosis was induced in K562 cells after Stel B treatment. The Stel B-induced apoptosis might be in mitochondrial pathway, with increase of Bad and Bax, decrease of Bcl-2 and activation of caspase-9. In addition, dose-dependent increase of reactive oxygen species (ROS) and loss of mitochondrial membrane potential (MMP) occurred. Meanwhile, Stel B inhibited phosphorylation of Stat5, expression of 4 PI3K catalytic isoforms, and phosphorylation of the downstream effectors including PDK1 and Akt, suggesting that inhibition against Stat5 and PI3K might be involved in the apoptosis-inducing effect. Combination of Stel B with Imatinib with ratio as IC50 Stel B : 5×IC50 Imatinib led to synergistic effect. Stel B might become a promising candidate for CML therapy alone or together with Imatinib.
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Affiliation(s)
- Yali Chen
- Department of Biopharmaceutical Sciences, Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China.,Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Qianxiang Zhou
- Department of Biopharmaceutical Sciences, Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China.,Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Lei Zhang
- Department of Biopharmaceutical Sciences, Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China.,Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Yuxu Zhong
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China
| | - Guanwei Fan
- Institute of Traditional Chinese Medicine Research, State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Zhe Zhang
- Department of Biopharmaceutical Sciences, Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Ran Wang
- Department of Biopharmaceutical Sciences, Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Meihua Jin
- Department of Biopharmaceutical Sciences, Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Yuling Qiu
- Department of Biopharmaceutical Sciences, Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Dexin Kong
- Department of Biopharmaceutical Sciences, Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China.,Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
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21
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Utilization of Volatile Fatty Acids from Microalgae for the Production of High Added Value Compounds. FERMENTATION-BASEL 2017. [DOI: 10.3390/fermentation3040054] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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22
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Romano G, Costantini M, Sansone C, Lauritano C, Ruocco N, Ianora A. Marine microorganisms as a promising and sustainable source of bioactive molecules. MARINE ENVIRONMENTAL RESEARCH 2017; 128:58-69. [PMID: 27160988 DOI: 10.1016/j.marenvres.2016.05.002] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 04/29/2016] [Accepted: 05/01/2016] [Indexed: 06/05/2023]
Abstract
There is an urgent need to discover new drug entities due to the increased incidence of severe diseases as cancer and neurodegenerative pathologies, and reducing efficacy of existing antibiotics. Recently, there is a renewed interest in exploring the marine habitat for new pharmaceuticals also thanks to the advancement in cultivation technologies and in molecular biology techniques. Microorganisms represent a still poorly explored resource for drug discovery. The possibility of obtaining a continuous source of bioactives from marine microorganisms, more amenable to culturing compared to macro-organisms, may be able to meet the challenging demands of pharmaceutical industries. This would enable a more environmentally-friendly approach to drug discovery and overcome the over-utilization of marine resources and the use of destructive collection practices. The importance of the topic is underlined by the number of EU projects funded aimed at improving the exploitation of marine organisms for drug discovery.
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Affiliation(s)
- G Romano
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy.
| | - M Costantini
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy
| | - C Sansone
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy
| | - C Lauritano
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy
| | - N Ruocco
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia, 80126 Napoli, Italy; Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry-CNR, Via Campi Flegrei 34, Pozzuoli, Naples 80078, Italy
| | - A Ianora
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy
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23
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Tatsuta T, Hosono M, Rotinsulu H, Wewengkang DS, Sumilat DA, Namikoshi M, Yamazaki H. Lissoclibadin 1, a Polysulfur Aromatic Alkaloid from the Indonesian Ascidian Lissoclinum cf. badium, Induces Caspase-Dependent Apoptosis in Human Colon Cancer Cells and Suppresses Tumor Growth in Nude Mice. JOURNAL OF NATURAL PRODUCTS 2017; 80:499-502. [PMID: 28181805 DOI: 10.1021/acs.jnatprod.6b01051] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Lissoclibadins, polysulfur aromatic alkaloids, were isolated from the Indonesian ascidian Lissoclinum cf. badium. Lissoclibadins 1 (1), 3 (2), 4 (3), 7 (4), 8 (5), and 14 (6) inhibited the growth of four human solid cancer cell lines: HCT-15 (colon adenocarcinoma), HeLa-S3 (cervix adenocarcinoma), MCF-7 (breast adenocarcinoma), and NCI-H28 (mesothelioma). Lissoclibadin 1 (1) exerted the most potent cytotoxic effects in vitro and mainly promoted apoptosis through an intrinsic pathway with the activation of a caspase-dependent pathway in HCT-15 cells. In vivo studies demonstrated that 1 suppressed tumor growth in nude mice carrying HCT-15 cells without significant secondary adverse effects. In conclusion, the results obtained in the present study demonstrate that 1 has potential as a chemotherapeutic candidate for preclinical investigations.
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Affiliation(s)
- Takeo Tatsuta
- Department of Natural Product Chemistry, Faculty of Pharmaceutical Sciences and ‡Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University , Aoba-ku, Sendai 981-8558, Japan
- Faculty of Mathematic and Natural Sciences and ⊥Faculty of Fisheries and Marine Science, Sam Ratulangi University , Kampus Bahu, Manado 95115, Indonesia
| | - Masahiro Hosono
- Department of Natural Product Chemistry, Faculty of Pharmaceutical Sciences and ‡Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University , Aoba-ku, Sendai 981-8558, Japan
- Faculty of Mathematic and Natural Sciences and ⊥Faculty of Fisheries and Marine Science, Sam Ratulangi University , Kampus Bahu, Manado 95115, Indonesia
| | - Henki Rotinsulu
- Department of Natural Product Chemistry, Faculty of Pharmaceutical Sciences and ‡Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University , Aoba-ku, Sendai 981-8558, Japan
- Faculty of Mathematic and Natural Sciences and ⊥Faculty of Fisheries and Marine Science, Sam Ratulangi University , Kampus Bahu, Manado 95115, Indonesia
| | - Defny S Wewengkang
- Department of Natural Product Chemistry, Faculty of Pharmaceutical Sciences and ‡Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University , Aoba-ku, Sendai 981-8558, Japan
- Faculty of Mathematic and Natural Sciences and ⊥Faculty of Fisheries and Marine Science, Sam Ratulangi University , Kampus Bahu, Manado 95115, Indonesia
| | - Deiske A Sumilat
- Department of Natural Product Chemistry, Faculty of Pharmaceutical Sciences and ‡Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University , Aoba-ku, Sendai 981-8558, Japan
- Faculty of Mathematic and Natural Sciences and ⊥Faculty of Fisheries and Marine Science, Sam Ratulangi University , Kampus Bahu, Manado 95115, Indonesia
| | - Michio Namikoshi
- Department of Natural Product Chemistry, Faculty of Pharmaceutical Sciences and ‡Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University , Aoba-ku, Sendai 981-8558, Japan
- Faculty of Mathematic and Natural Sciences and ⊥Faculty of Fisheries and Marine Science, Sam Ratulangi University , Kampus Bahu, Manado 95115, Indonesia
| | - Hiroyuki Yamazaki
- Department of Natural Product Chemistry, Faculty of Pharmaceutical Sciences and ‡Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University , Aoba-ku, Sendai 981-8558, Japan
- Faculty of Mathematic and Natural Sciences and ⊥Faculty of Fisheries and Marine Science, Sam Ratulangi University , Kampus Bahu, Manado 95115, Indonesia
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24
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Maarisit W, Yamazaki H, Kanno SI, Tomizawa A, Rotinsulu H, Wewengkang DS, Sumilat DA, Ukai K, Kapojos MM, Namikoshi M. A tetramic acid derivative with protein tyrosine phosphatase 1B inhibitory activity and a new nortriterpene glycoside from the Indonesian marine sponge Petrosia sp. Bioorg Med Chem Lett 2016; 27:999-1002. [PMID: 28109786 DOI: 10.1016/j.bmcl.2016.12.077] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 12/27/2016] [Accepted: 12/28/2016] [Indexed: 01/23/2023]
Abstract
During the search for protein tyrosine phosphatase 1B (PTP1B) inhibitors from marine organisms, the known tetramic acid derivative, melophlin C (1), was isolated as an active component together with the new nortriterpenoid saponin, sarasinoside S (2), and three homologues: sarasinosides A1 (3), I1 (4), and J (5), from the Indonesian marine sponge Petrosia sp. The structure of 2 was elucidated on the basis of its spectroscopic data. Compound 1 inhibited PTP1B activity with an IC50 value of 14.6μM, while compounds 2-5 were not active at 15.2-16.0μM. This is the first study to report the inhibitory effects of a tetramic acid derivative on PTP1B activity.
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Affiliation(s)
- Wilmar Maarisit
- Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai 981-8558, Japan; Faculty of Fisheries and Marine Science, Sam Ratulangi University, Kampus Bahu, Manado 95115, Indonesia
| | - Hiroyuki Yamazaki
- Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai 981-8558, Japan.
| | - Syu-Ichi Kanno
- Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai 981-8558, Japan
| | - Ayako Tomizawa
- Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai 981-8558, Japan
| | - Henki Rotinsulu
- Faculty of Mathematic and Natural Sciences, Sam Ratulangi University, Kampus Bahu, Manado 95115, Indonesia
| | - Defny S Wewengkang
- Faculty of Mathematic and Natural Sciences, Sam Ratulangi University, Kampus Bahu, Manado 95115, Indonesia
| | - Deiske A Sumilat
- Faculty of Fisheries and Marine Science, Sam Ratulangi University, Kampus Bahu, Manado 95115, Indonesia
| | - Kazuyo Ukai
- Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai 981-8558, Japan
| | - Magie M Kapojos
- Faculty of Nursing, University of Pembangunan Indonesia, Bahu, Manado 95115, Indonesia
| | - Michio Namikoshi
- Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai 981-8558, Japan
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25
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Kuzmich AS, Khomenko TM, Fedorov SN, Makarieva TN, Shubina LK, Komarova NI, Korchagina DV, Rybalova TV, Volcho KP, Salakhutdinov NF. Cytotoxic and cancer preventive activity of benzotrithioles and benzotrithiole oxides, synthetic analogues of varacins. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1759-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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26
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Mudit M, El Sayed KA. Cancer control potential of marine natural product scaffolds through inhibition of tumor cell migration and invasion. Drug Discov Today 2016; 21:1745-1760. [DOI: 10.1016/j.drudis.2016.06.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 06/29/2016] [Accepted: 06/30/2016] [Indexed: 01/14/2023]
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27
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Zinnai A, Sanmartin C, Taglieri I, Andrich G, Venturi F. Supercritical fluid extraction from microalgae with high content of LC-PUFAs. A case of study: Sc-CO2 oil extraction from Schizochytrium sp. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2016.05.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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Guanidine Alkaloids from the Marine Sponge Monanchora pulchra Show Cytotoxic Properties and Prevent EGF-Induced Neoplastic Transformation in Vitro. Mar Drugs 2016; 14:md14070133. [PMID: 27428983 PMCID: PMC4962023 DOI: 10.3390/md14070133] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 07/05/2016] [Accepted: 07/08/2016] [Indexed: 12/13/2022] Open
Abstract
Guanidine alkaloids from sponges Monanchora spp. represent diverse bioactive compounds, however, the mechanisms underlying bioactivity are very poorly understood. Here, we report results of studies on cytotoxic action, the ability to inhibit EGF-induced neoplastic transformation, and the effects on MAPK/AP-1 signaling of eight rare guanidine alkaloids, recently isolated from the marine sponge Monanchora pulchra, namely: monanchocidin A (1), monanchocidin B (2), monanchomycalin C (3), ptilomycalin A (4), monanchomycalin B (5), normonanchocidin D (6), urupocidin A (7), and pulchranin A (8). All of the compounds induced cell cycle arrest (apart from 8) and programmed death of cancer cells. Ptilomycalin A-like compounds 1–6 activated JNK1/2 and ERK1/2, following AP-1 activation and caused p53-independent programmed cell death. Compound 7 induced p53-independent cell death without activation of AP-1 or caspase-3/7, and the observed JNK1/2 activation did not contribute to the cytotoxic effect of the compound. Alkaloid 8 induced JNK1/2 (but not ERK1/2) activation leading to p53-independent cell death and strong suppression of AP-1 activity. Alkaloids 1–4, 7, and 8 were able to inhibit the EGF-induced neoplastic transformation of JB6 P+ Cl41 cells. Our results suggest that investigated guanidine marine alkaloids hold potential to eliminate human cancer cells and prevent cancer cell formation and spreading.
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29
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Long S, Sousa E, Kijjoa A, Pinto MMM. Marine Natural Products as Models to Circumvent Multidrug Resistance. Molecules 2016; 21:molecules21070892. [PMID: 27399665 PMCID: PMC6273648 DOI: 10.3390/molecules21070892] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 06/27/2016] [Accepted: 07/01/2016] [Indexed: 02/01/2023] Open
Abstract
Multidrug resistance (MDR) to anticancer drugs is a serious health problem that in many cases leads to cancer treatment failure. The ATP binding cassette (ABC) transporter P-glycoprotein (P-gp), which leads to premature efflux of drugs from cancer cells, is often responsible for MDR. On the other hand, a strategy to search for modulators from natural products to overcome MDR had been in place during the last decades. However, Nature limits the amount of some natural products, which has led to the development of synthetic strategies to increase their availability. This review summarizes the research findings on marine natural products and derivatives, mainly alkaloids, polyoxygenated sterols, polyketides, terpenoids, diketopiperazines, and peptides, with P-gp inhibitory activity highlighting the established structure-activity relationships. The synthetic pathways for the total synthesis of the most promising members and analogs are also presented. It is expected that the data gathered during the last decades concerning their synthesis and MDR-inhibiting activities will help medicinal chemists develop potential drug candidates using marine natural products as models which can deliver new ABC transporter inhibitor scaffolds.
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Affiliation(s)
- Solida Long
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto 4050-313, Portugal.
| | - Emília Sousa
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto 4050-313, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Porto 4050-123, Portugal.
| | - Anake Kijjoa
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Porto 4050-123, Portugal.
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto 4050-123, Portugal.
| | - Madalena M M Pinto
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto 4050-313, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Porto 4050-123, Portugal.
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30
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Wang R, Zhang Q, Peng X, Zhou C, Zhong Y, Chen X, Qiu Y, Jin M, Gong M, Kong D. Stellettin B Induces G1 Arrest, Apoptosis and Autophagy in Human Non-small Cell Lung Cancer A549 Cells via Blocking PI3K/Akt/mTOR Pathway. Sci Rep 2016; 6:27071. [PMID: 27243769 PMCID: PMC4886687 DOI: 10.1038/srep27071] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 05/14/2016] [Indexed: 11/26/2022] Open
Abstract
Until now, there is not yet antitumor drug with dramatically improved efficacy on non-small cell lung cancer (NSCLC). Marine organisms are rich source of novel compounds with various activities. We isolated stellettin B (Stel B) from marine sponge Jaspis stellifera, and demonstrated that it induced G1 arrest, apoptosis and autophagy at low concentrations in human NSCLC A549 cells. G1 arrest by Stel B might be attributed to the reduction of cyclin D1 and enhancement of p27 expression. The apoptosis induction might be related to the cleavage of PARP and increase of ROS generation. Moreover, we demonstrated that Stel B induced autophagy in A549 cells by use of various assays including monodansylcadaverine (MDC) staining, transmission electron microscopy (TEM), tandem mRFP-GFP-LC3 fluorescence microscopy, and western blot detection of the autophagy markers of LC3B, p62 and Atg5. Meanwhile, Stel B inhibited the expression of PI3K-p110, and the phosphorylation of PDK1, Akt, mTOR, p70S6K as well as GSK-3β, suggesting the correlation of blocking PI3K/Akt/mTOR pathway with the above antitumor activities. Together, our findings indicate the antitumor potential of Stel B for NSCLC by targeting PI3K/Akt/mTOR pathway.
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Affiliation(s)
- Ran Wang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Qian Zhang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
- Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Xin Peng
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
- Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Chang Zhou
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
- Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Yuxu Zhong
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, China
| | - Xi Chen
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
- Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Yuling Qiu
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Meihua Jin
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Min Gong
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Dexin Kong
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
- Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
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31
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Gomes NGM, Dasari R, Chandra S, Kiss R, Kornienko A. Marine Invertebrate Metabolites with Anticancer Activities: Solutions to the "Supply Problem". Mar Drugs 2016; 14:E98. [PMID: 27213412 PMCID: PMC4882572 DOI: 10.3390/md14050098] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 04/29/2016] [Accepted: 05/05/2016] [Indexed: 02/07/2023] Open
Abstract
Marine invertebrates provide a rich source of metabolites with anticancer activities and several marine-derived agents have been approved for the treatment of cancer. However, the limited supply of promising anticancer metabolites from their natural sources is a major hurdle to their preclinical and clinical development. Thus, the lack of a sustainable large-scale supply has been an important challenge facing chemists and biologists involved in marine-based drug discovery. In the current review we describe the main strategies aimed to overcome the supply problem. These include: marine invertebrate aquaculture, invertebrate and symbiont cell culture, culture-independent strategies, total chemical synthesis, semi-synthesis, and a number of hybrid strategies. We provide examples illustrating the application of these strategies for the supply of marine invertebrate-derived anticancer agents. Finally, we encourage the scientific community to develop scalable methods to obtain selected metabolites, which in the authors' opinion should be pursued due to their most promising anticancer activities.
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Affiliation(s)
- Nelson G M Gomes
- REQUIMTE/LAQV, Laboratory of Pharmacognosy, Department of Chemistry, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira No. 228, 4050-313 Porto, Portugal.
| | - Ramesh Dasari
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA.
| | - Sunena Chandra
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA.
| | - Robert Kiss
- Laboratoire de Cancérologie et de Toxicologie Expérimentale, Faculté de Pharmacie, Université Libre de Bruxelles, Campus de la Plaine, CP205/1, Boulevard du Triomphe, 1050 Brussels, Belgium.
| | - Alexander Kornienko
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA.
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Heredia DA, Larghi EL, Kaufman TS. A Straightforward Synthesis of 5-Methylaaptamine from Eugenol, Employing a 6π-Electrocyclization Reaction of a 1-Azatriene. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501566] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Affiliation(s)
- Sergey A. Dyshlovoy
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald-Tumorzentrum, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; E-Mail:
- Laboratory of Marine Natural Products Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, 690022 Vladivostok, Russian Federation
- School of Natural Sciences, Far East Federal University, 690022 Vladivostok, Russian Federation
| | - Friedemann Honecker
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald-Tumorzentrum, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; E-Mail:
- Tumor and Breast Center ZeTuP St. Gallen, 9006 St. Gallen, Switzerland
- Author to whom correspondence should be addressed; E-Mail:
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Enzymatic Halogenases and Haloperoxidases: Computational Studies on Mechanism and Function. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2015; 100:113-51. [PMID: 26415843 DOI: 10.1016/bs.apcsb.2015.06.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Despite the fact that halogenated compounds are rare in biology, a number of organisms have developed processes to utilize halogens and in recent years, a string of enzymes have been identified that selectively insert halogen atoms into, for instance, a CH aliphatic bond. Thus, a number of natural products, including antibiotics, contain halogenated functional groups. This unusual process has great relevance to the chemical industry for stereoselective and regiospecific synthesis of haloalkanes. Currently, however, industry utilizes few applications of biological haloperoxidases and halogenases, but efforts are being worked on to understand their catalytic mechanism, so that their catalytic function can be upscaled. In this review, we summarize experimental and computational studies on the catalytic mechanism of a range of haloperoxidases and halogenases with structurally very different catalytic features and cofactors. This chapter gives an overview of heme-dependent haloperoxidases, nonheme vanadium-dependent haloperoxidases, and flavin adenine dinucleotide-dependent haloperoxidases. In addition, we discuss the S-adenosyl-l-methionine fluoridase and nonheme iron/α-ketoglutarate-dependent halogenases. In particular, computational efforts have been applied extensively for several of these haloperoxidases and halogenases and have given insight into the essential structural features that enable these enzymes to perform the unusual halogen atom transfer to substrates.
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35
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Abdjul DB, Yamazaki H, Kanno SI, Takahashi O, Kirikoshi R, Ukai K, Namikoshi M. Structures and Biological Evaluations of Agelasines Isolated from the Okinawan Marine Sponge Agelas nakamurai. JOURNAL OF NATURAL PRODUCTS 2015; 78:1428-1433. [PMID: 26083682 DOI: 10.1021/acs.jnatprod.5b00375] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Three new N-methyladenine-containing diterpenes, 2-oxoagelasines A (1) and F (2) and 10-hydro-9-hydroxyagelasine F (3), were isolated from the Okinawan marine sponge Agelas nakamurai Hoshino together with eight known agelasine derivatives, 2-oxoagelasine B (4), agelasines A (5), B (6), D (7), E (8), F (9), and G (10), and ageline B (11). The structures of 1-3 were assigned on the basis of their spectroscopic data and their comparison with those of the literature. Compounds 3 and 5-11 inhibited the growth of Mycobacterium smegmatis with inhibition zones of 10, 14, 15, 18, 14, 20, 12, and 12 mm at 20 μg/disc, respectively. All compounds were inactive (IC50 > 10 μM) against Huh-7 (hepatoma) and EJ-1 (bladder carcinoma) human cancer cell lines. Three 2-oxo derivatives (1, 2, and 4) exhibited markedly reduced biological activity against M. smegmatis. Moreover, compound 10 inhibited protein tyrosine phosphatase 1B (PTP1B) activity with an IC50 value of 15 μM.
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Affiliation(s)
- Delfly B Abdjul
- Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University, Sendai 981-8558, Japan
| | - Hiroyuki Yamazaki
- Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University, Sendai 981-8558, Japan
| | - Syu-ichi Kanno
- Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University, Sendai 981-8558, Japan
| | - Ohgi Takahashi
- Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University, Sendai 981-8558, Japan
| | - Ryota Kirikoshi
- Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University, Sendai 981-8558, Japan
| | - Kazuyo Ukai
- Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University, Sendai 981-8558, Japan
| | - Michio Namikoshi
- Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University, Sendai 981-8558, Japan
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González-Almela E, Sanz MA, García-Moreno M, Northcote P, Pelletier J, Carrasco L. Differential action of pateamine A on translation of genomic and subgenomic mRNAs from Sindbis virus. Virology 2015; 484:41-50. [PMID: 26057151 DOI: 10.1016/j.virol.2015.05.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 04/28/2015] [Accepted: 05/03/2015] [Indexed: 12/14/2022]
Abstract
Pateamine A (Pat A) is a natural marine product that interacts specifically with the translation initiation factor eIF4A leading to the disruption of the eIF4F complex. In the present study, we have examined the activity of Pat A on the translation of Sindbis virus (SINV) mRNAs. Translation of genomic mRNA is strongly suppressed by Pat A, as shown by the reduction of nsP1 or nsP2 synthesis. Notably, protein synthesis directed by subgenomic mRNA is resistant to Pat A inhibition when the compound is added at late times following infection; however, subgenomic mRNA is sensitive to Pat A in transfected cells or in cell free systems, indicating that this viral mRNA exhibits a dual mechanism of translation. A detailed kinetic analysis of Pat A inhibition in SINV-infected cells demonstrates that a switch occurs approximately 4h after infection, rendering subgenomic mRNA translation more resistant to Pat A inhibition.
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Affiliation(s)
- Esther González-Almela
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), C/Nicolás Cabrera, 1, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Miguel Angel Sanz
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), C/Nicolás Cabrera, 1, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Manuel García-Moreno
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), C/Nicolás Cabrera, 1, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Peter Northcote
- School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington 6140, New Zealand
| | - Jerry Pelletier
- Department of Biochemistry and Goodman Cancer Center, McIntyre Medical Sciences Building, 3655 Promenade Sir William Osler, McGill University, Montreal, Quebec, Canada H3G 1Y6
| | - Luis Carrasco
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), C/Nicolás Cabrera, 1, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain.
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Herrero M, Ibáñez E. Green processes and sustainability: An overview on the extraction of high added-value products from seaweeds and microalgae. J Supercrit Fluids 2015. [DOI: 10.1016/j.supflu.2014.09.006] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Synthesis and biological evaluation of novel 3-alkylpyridine marine alkaloid analogs with promising anticancer activity. Mar Drugs 2014; 12:4361-78. [PMID: 25089949 PMCID: PMC4145321 DOI: 10.3390/md12084361] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 06/24/2014] [Accepted: 07/09/2014] [Indexed: 01/27/2023] Open
Abstract
Cancer continues to be one of the most important health problems worldwide, and the identification of novel drugs and treatments to address this disease is urgent. During recent years, marine organisms have proven to be a promising source of new compounds with action against tumoral cell lines. Here, we describe the synthesis and anticancer activity of eight new 3-alkylpyridine alkaloid (3-APA) analogs in four steps and with good yields. The key step for the synthesis of these compounds is a Williamson etherification under phase-transfer conditions. We investigated the influence of the length of the alkyl chain attached to position 3 of the pyridine ring on the cytotoxicity of these compounds. Biological assays demonstrated that compounds with an alkyl chain of ten carbon atoms (4c and 5c) were the most active against two tumoral cell lines: RKO-AS-45-1 and HeLa. Micronucleus and TUNEL assays showed that both compounds are mutagenic and induce apoptosis. In addition, Compound 5c altered the cellular actin cytoskeleton in RKO-AS-45-1 cells. The results suggest that Compounds 4c and 5c may be novel prototype anticancer agents.
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