1
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Furqan M, Fayyaz A, Firdous F, Raza H, Bilal A, Saleem RSZ, Shahzad-Ul-Hussan S, Wang D, Youssef FS, Al Musayeib NM, Ashour ML, Hussain H, Faisal A. Identification and Characterization of Natural and Semisynthetic Quinones as Aurora Kinase Inhibitors. JOURNAL OF NATURAL PRODUCTS 2022; 85:1503-1513. [PMID: 35687347 DOI: 10.1021/acs.jnatprod.1c01222] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Aurora kinases (Aurora A, B, and C) are a family of serine/threonine kinases that play critical roles during mitotic initiation and progression. Aurora A and B kinases are ubiquitously expressed, and their overexpression and/or amplification in many cancers have been associated with poor prognosis. Several inhibitors that target Aurora kinases A, B, or both have been developed during the past decade with efficacy in different in vitro and in vivo models for a variety of cancers. Recent studies have also identified Aurora A as a synthetic lethal target for different tumor suppressors, including RB1, SMARCA4, and ARID1A, which signifies the need for Aurora-A-selective inhibitors. Here, we report the screening of a small library of quinones (nine naphthoquinones, one orthoquinone, and one anthraquinone) in a biochemical assay for Aurora A kinase that resulted in the identification of several quinones as inhibitors. IC50 determination against Aurora A and B kinases revealed the inhibition of both kinases with selectivity toward Aurora A. Two of the compounds, natural quinone naphthazarin (1) and a pseudo anthraquinone, 2-(chloromethyl)quinizarin (11), potently inhibited the proliferation of various cancer cell lines with IC50 values ranging from 0.16 ± 0.15 to 1.7 ± 0.06 and 0.15 ± 0.04 to 6.3 ± 1.8 μM, respectively. Treatment of cancer cells with these compounds for 24 h resulted in abrogated mitosis and apoptotic cell death. Direct binding of both the compounds with Aurora A kinase was also confirmed through STD NMR analysis. Docking studies predicted the binding of both compounds to the ATP binding pocket of Aurora A kinase. We have, therefore, identified quinones as Aurora kinase inhibitors that can serve as a lead for future drug discovery endeavors.
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Affiliation(s)
- Muhammad Furqan
- Department of Biology, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
| | - Alishba Fayyaz
- Department of Biology, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
| | - Farhat Firdous
- Department of Biology, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
| | - Hadeeqa Raza
- Department of Biology, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
| | - Aishah Bilal
- Department of Biology, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
| | - Rahman Shah Zaib Saleem
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
| | - Syed Shahzad-Ul-Hussan
- Department of Biology, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
| | - Daijie Wang
- School of Pharmaceutical Sciences and Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Fadia S Youssef
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Abbasia, Cairo 11566, Egypt
| | - Nawal M Al Musayeib
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed L Ashour
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Abbasia, Cairo 11566, Egypt
| | - Hidayat Hussain
- Leibniz Institute of Plant Biochemistry, Department of Bioorganic Chemistry, Weinberg 3, D-06120 Halle (Saale), Germany
| | - Amir Faisal
- Department of Biology, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
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2
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Hangsamai N, Photai K, Mahaamnart T, Kanokmedhakul S, Kanokmedhakul K, Senawong T, Pitchuanchom S, Nontakitticharoen M. Four New Anthraquinones with Histone Deacetylase Inhibitory Activity from Ventilago denticulata Roots. Molecules 2022; 27:molecules27031088. [PMID: 35164356 PMCID: PMC8839831 DOI: 10.3390/molecules27031088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/29/2022] [Accepted: 02/04/2022] [Indexed: 11/25/2022] Open
Abstract
Chromatographic separation of the crude extracts from the roots of Ventilago denticulata led to the isolation of four new anthraquinones, ventilanones L–O (1–4), together with eight known anthraquinones (5–12). Their structures were elucidated by spectroscopic methods (UV, IR, 1H NMR, 13C NMR, and 2D NMR) and mass spectrometry (MS), as well as comparison of their spectroscopic data with those reported in the literature. HDACs inhibitory activity evaluation resulted that compound 2 exhibited moderate antiproliferative activity against HeLa and A549 cell lines but nontoxic to normal cell. Molecular docking indicated the phenolic functionality of 2 plays crucial interactions with class II HDAC4 enzyme.
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Affiliation(s)
- Nattika Hangsamai
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (N.H.); (K.P.); (T.M.); (S.K.); (K.K.)
| | - Kanokwan Photai
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (N.H.); (K.P.); (T.M.); (S.K.); (K.K.)
| | - Thidathep Mahaamnart
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (N.H.); (K.P.); (T.M.); (S.K.); (K.K.)
| | - Somdej Kanokmedhakul
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (N.H.); (K.P.); (T.M.); (S.K.); (K.K.)
| | - Kwanjai Kanokmedhakul
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (N.H.); (K.P.); (T.M.); (S.K.); (K.K.)
| | - Thanaset Senawong
- Natural Products Research Unit, Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Siripit Pitchuanchom
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham 44150, Thailand;
| | - Mongkol Nontakitticharoen
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (N.H.); (K.P.); (T.M.); (S.K.); (K.K.)
- Correspondence: ; Tel.: +66-43-009-700 (ext. 42174)
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3
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Malik MS, Alsantali RI, Jassas RS, Alsimaree AA, Syed R, Alsharif MA, Kalpana K, Morad M, Althagafi II, Ahmed SA. Journey of anthraquinones as anticancer agents - a systematic review of recent literature. RSC Adv 2021; 11:35806-35827. [PMID: 35492773 PMCID: PMC9043427 DOI: 10.1039/d1ra05686g] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/06/2021] [Indexed: 12/19/2022] Open
Abstract
Anthraquinones are privileged chemical scaffolds that have been used for centuries in various therapeutic applications. The anthraquinone moiety forms the core of various anticancer agents. However, the emergence of drug-resistant cancers warrants the development of new anticancer agents. The research endeavours towards new anthraquinone-based compounds are increasing rapidly in recent years. They are used as a core chemical template to achieve structural modifications, resulting in the development of new anthraquinone-based compounds as promising anticancer agents. Mechanistically, most of the anthraquinone-based compounds inhibit cancer progression by targeting essential cellular proteins. Herein, we review new anthraquinone analogues that have been developed in recent years as anticancer agents. This includes a systematic review of the recent literature (2005-2021) on anthraquinone-based compounds in cell-based models and key target proteins such as kinases, topoisomerases, telomerases, matrix metalloproteinases and G-quadruplexes involved in the viability of cancer cells. In addition to this, the developments in PEG-based delivery of anthraquinones and the toxicity aspects of anthraquinone derivatives are also discussed. The review dispenses a compact background knowledge to understanding anthraquinones for future research on the expansion of anticancer therapeutics.
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Affiliation(s)
- M Shaheer Malik
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University Makkah 21955 Saudi Arabia
| | - Reem I Alsantali
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University P. O. Box 11099 Taif 21944 Saudi Arabia
| | - Rabab S Jassas
- Department of Chemistry, Jamoum University College, Umm Al-Qura University 21955 Makkah Saudi Arabia
| | - Abdulrahman A Alsimaree
- Department of Basic Science (Chemistry), College of Science and Humanities, Shaqra University Afif Saudi Arabia
| | - Riyaz Syed
- Centalla Discovery, JHUB, Jawaharlal Nehru Technological University Hyderabad Kukatpally Hyderabad 500085 India
| | - Meshari A Alsharif
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University Makkah 21955 Saudi Arabia
| | - Kulkarni Kalpana
- Department of Humanities and Sciences (Chemistry), Gokaraju Rangaraju Institute of Engineering and Technology Bachupally Hyderabad 500090 India
| | - Moataz Morad
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University Makkah 21955 Saudi Arabia
| | - Ismail I Althagafi
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University Makkah 21955 Saudi Arabia
| | - Saleh A Ahmed
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University Makkah 21955 Saudi Arabia
- Department of Chemistry, Faculty of Science, Assiut University 71516 Assiut Egypt
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4
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Gartman JA, Tambar UK. Synthetic Studies of the Rubellin Natural Products: Development of a Stereoselective Strategy and Total Synthesis of (+)-Rubellin C. J Org Chem 2021; 86:11237-11262. [PMID: 34288689 DOI: 10.1021/acs.joc.1c00920] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This manuscript describes our studies of the class of natural products known as the rubellins, culminating in the total synthesis of (+)-rubellin C. These anthraquinone-based natural products contain a variety of stereochemical and architectural motifs, including a 6-5-6-fused ring system, 5 stereogenic centers, and a central quaternary center. Herein, we report our development of a strategy to target the stereochemically dense core and anthraquinone nucleus, including approaches such as a bifunctional allylboron and vinyl triflate reagent, an anthraquinone benzylic metalation strategy, and a late-stage anthraquinone introduction strategy. Our studies culminate in a successful route to highly functionalized anthraquinone-based natural product scaffolds and a stereoselective total synthesis of (+)-rubellin C. These strategies and outcomes will aid in synthetic planning toward anthraquinone-based natural products of high interest.
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Affiliation(s)
- Jackson A Gartman
- Department of Biochemistry, UT Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, United States
| | - Uttam K Tambar
- Department of Biochemistry, UT Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, United States
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5
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Wang T, Yu H, Bian B, Liu Y, Liu S, Yu S, Wang Z. One-Pot Synthesis of Anthraquinone Catalyzed by Microwave Acetic Acid Modified Hβ Zeolite. Catal Letters 2020. [DOI: 10.1007/s10562-020-03201-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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6
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Miyamura H, Tobita F, Suzuki A, Kobayashi S. Polymer Immobilized Bimetallic Nanoparticle Catalysts for Selective Hydrogenation of Quinones and Integration of Quinone-hydrogenation and Its Derivatization Using Sequential and Continuous-flow Systems. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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7
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Synthesis of Anthraquinones by Iridium-Catalyzed [2 + 2 + 2] Cycloaddition of a 1,2-Bis(propiolyl)benzene Derivative with Alkynes. INORGANICS 2019. [DOI: 10.3390/inorganics7110138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
[2 + 2 + 2] cycloaddition of a 1,2-bis(propiolyl)benzene derivative with terminal and internal alkynes takes place in the presence of [Ir(cod)Cl]2 (cod = 1,5-cyclooctadiene) combined with bis(diphenylphosphino)ethane (DPPE) to give anthraquinones in 42% to 93% yields with a simple experimental procedure. A fluorenone derivative can also be synthesized by iridium-catalyzed [2 + 2 + 2] cycloaddition of a benzene-linked ketodiyne with an internal alkyne to give a 94% yield.
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8
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Phenolic glucosides and chromane analogs from the insect fungus Conoideocrella krungchingensis BCC53666. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Miyamura H, Tobita F, Suzuki A, Kobayashi S. Direct Synthesis of Hydroquinones from Quinones through Sequential and Continuous‐Flow Hydrogenation‐Derivatization Using Heterogeneous Au–Pt Nanoparticles as Catalysts. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904159] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hiroyuki Miyamura
- Department of ChemistrySchool of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Fumiya Tobita
- Department of ChemistrySchool of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Aya Suzuki
- Department of ChemistrySchool of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Shū Kobayashi
- Department of ChemistrySchool of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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10
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Miyamura H, Tobita F, Suzuki A, Kobayashi S. Direct Synthesis of Hydroquinones from Quinones through Sequential and Continuous‐Flow Hydrogenation‐Derivatization Using Heterogeneous Au–Pt Nanoparticles as Catalysts. Angew Chem Int Ed Engl 2019; 58:9220-9224. [DOI: 10.1002/anie.201904159] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Hiroyuki Miyamura
- Department of ChemistrySchool of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Fumiya Tobita
- Department of ChemistrySchool of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Aya Suzuki
- Department of ChemistrySchool of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Shū Kobayashi
- Department of ChemistrySchool of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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11
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Antitumor Anthraquinones from an Easter Island Sea Anemone: Animal or Bacterial Origin? Mar Drugs 2019; 17:md17030154. [PMID: 30841562 PMCID: PMC6471592 DOI: 10.3390/md17030154] [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: 01/31/2019] [Revised: 02/26/2019] [Accepted: 02/26/2019] [Indexed: 11/17/2022] Open
Abstract
The presence of two known anthraquinones, Lupinacidin A and Galvaquinone B, which have antitumor activity, has been identified in the sea anemone (Gyractis sesere) from Easter Island. So far, these anthraquinones have been characterized from terrestrial and marine Actinobacteria only. In order to identify the anthraquinones producer, we isolated Actinobacteria associated with the sea anemone and obtained representatives of seven actinobacterial genera. Studies of cultures of these bacteria by HPLC, NMR, and HRLCMS analyses showed that the producer of Lupinacidin A and Galvaquinone B indeed was one of the isolated Actinobacteria. The producer strain, SN26_14.1, was identified as a representative of the genus Verrucosispora. Genome analysis supported the biosynthetic potential to the production of these compounds by this strain. This study adds Verrucosispora as a new genus to the anthraquinone producers, in addition to well-known species of Streptomyces and Micromonospora. By a cultivation-based approach, the responsibility of symbionts of a marine invertebrate for the production of complex natural products found within the animal’s extracts could be demonstrated. This finding re-opens the debate about the producers of secondary metabolites in sea animals. Finally, it provides valuable information about the chemistry of bacteria harbored in the geographically-isolated and almost unstudied, Easter Island.
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12
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Jiang L, Pu H, Xiang J, Su M, Yan X, Yang D, Zhu X, Shen B, Duan Y, Huang Y. Huanglongmycin A-C, Cytotoxic Polyketides Biosynthesized by a Putative Type II Polyketide Synthase From Streptomyces sp. CB09001. Front Chem 2018; 6:254. [PMID: 30013965 PMCID: PMC6036704 DOI: 10.3389/fchem.2018.00254] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 06/08/2018] [Indexed: 11/18/2022] Open
Abstract
Three natural products of nonaketide biosynthetic origin, probably biosynthesized from nine molecules of malonyl-CoA, have been isolated. Herein we described the isolation and structure elucidation of huanglongmycin (HLM) A-C and identification of the putative hlm biosynthetic gene cluster from Streptomyces sp. CB09001, isolated from a karstic cave in Xiangxi, China. Albeit previously isolated, HLM A was reported for the first time to exhibit moderate cytotoxicity against A549 lung cancer cell line (IC50 = 13.8 ± 1.5 μM) and weak antibacterial activity against gram-negative clinical isolates. A putative biosynthetic pathway for HLM A, featuring a nonaketide-specific type II polyketide synthase, was proposed. It would be consistent with the isolation of HLM B and C, which are two new natural products and likely shunt metabolites during HLM A biosynthesis.
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Affiliation(s)
- Lin Jiang
- Xiangya International Academy of Translational Medicine, Central South University, Changsha, China
| | - Hong Pu
- Xiangya International Academy of Translational Medicine, Central South University, Changsha, China
| | - Jingxi Xiang
- Xiangya International Academy of Translational Medicine, Central South University, Changsha, China
| | - Meng Su
- Xiangya International Academy of Translational Medicine, Central South University, Changsha, China
| | - Xiaohui Yan
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, United States
| | - Dong Yang
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, United States
| | - Xiangcheng Zhu
- Xiangya International Academy of Translational Medicine, Central South University, Changsha, China.,Hunan Engineering Research Center of Combinatorial Biosynthesis and Natural Product Drug Discovery, Changsha, China
| | - Ben Shen
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, United States.,Department Molecular Medicine, The Scripps Research Institute, Jupiter, FL, United States.,Natural Products Library Initiative, The Scripps Research Institute, Jupiter, FL, United States
| | - Yanwen Duan
- Xiangya International Academy of Translational Medicine, Central South University, Changsha, China.,Hunan Engineering Research Center of Combinatorial Biosynthesis and Natural Product Drug Discovery, Changsha, China.,National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery, Changsha, China
| | - Yong Huang
- Xiangya International Academy of Translational Medicine, Central South University, Changsha, China.,National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery, Changsha, China
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13
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Sk MR, Chakraborty S, Mal D. Studies directed toward total synthesis of rhodocomatulins: A regioselective synthesis of brominated hydroxyanthraquinones by anionic annulations. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2017.1401637] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Md Raja Sk
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Soumen Chakraborty
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Dipakranjan Mal
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, India
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14
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Farooq U, Khan S, Naz S, Khan A, Khan A, Ahmed A, Rauf A, Bukhari SM, Khan SA, Kamil A, Riaz N, Khan AR. Three new anthraquinone derivatives isolated from Symplocos racemosa and their antibiofilm activity. Chin J Nat Med 2017; 15:944-949. [DOI: 10.1016/s1875-5364(18)30011-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Indexed: 10/18/2022]
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15
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Plitzko B, Kaweesa EN, Loesgen S. The natural product mensacarcin induces mitochondrial toxicity and apoptosis in melanoma cells. J Biol Chem 2017; 292:21102-21116. [PMID: 29074620 DOI: 10.1074/jbc.m116.774836] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 10/16/2017] [Indexed: 11/06/2022] Open
Abstract
Mensacarcin is a highly oxygenated polyketide that was first isolated from soil-dwelling Streptomyces bacteria. It exhibits potent cytostatic properties (mean of 50% growth inhibition = 0.2 μm) in almost all cell lines of the National Cancer Institute (NCI)-60 cell line screen and relatively selective cytotoxicity against melanoma cells. Moreover, its low COMPARE correlations with known standard antitumor agents indicate a unique mechanism of action. Effective therapies for managing melanoma are limited, so we sought to investigate mensacarcin's unique cytostatic and cytotoxic effects and its mode of action. By assessing morphological and biochemical features, we demonstrated that mensacarcin activates caspase-3/7-dependent apoptotic pathways and induces cell death in melanoma cells. Upon mensacarcin exposure, SK-Mel-28 and SK-Mel-5 melanoma cells, which have the BRAFV600E mutation associated with drug resistance, showed characteristic chromatin condensation as well as distinct poly(ADP-ribose)polymerase-1 cleavage. Flow cytometry identified a large population of apoptotic melanoma cells, and single-cell electrophoresis indicated that mensacarcin causes genetic instability, a hallmark of early apoptosis. To visualize mensacarcin's subcellular localization, we synthesized a fluorescent mensacarcin probe that retained activity. The natural product probe was localized to mitochondria within 20 min of treatment. Live-cell bioenergetic flux analysis confirmed that mensacarcin disturbs energy production and mitochondrial function rapidly. The subcellular localization of the fluorescently labeled mensacarcin together with its unusual metabolic effects in melanoma cells provide evidence that mensacarcin targets mitochondria. Mensacarcin's unique mode of action suggests that it may be a useful probe for examining energy metabolism, particularly in BRAF-mutant melanoma, and represent a promising lead for the development of new anticancer drugs.
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Affiliation(s)
- Birte Plitzko
- From the Department of Chemistry, Oregon State University, Corvallis, Oregon 97331
| | - Elizabeth N Kaweesa
- From the Department of Chemistry, Oregon State University, Corvallis, Oregon 97331
| | - Sandra Loesgen
- From the Department of Chemistry, Oregon State University, Corvallis, Oregon 97331
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16
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Basak S, Mal D. Applications of [4+2] Anionic Annulation and Carbonyl-Ene Reaction in the Synthesis of Anthraquinones, Tetrahydroanthraquinones, and Pyranonaphthoquinones. J Org Chem 2017; 82:11035-11051. [DOI: 10.1021/acs.joc.7b01987] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shyam Basak
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Dipakranjan Mal
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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17
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Liu M, Yin Y, Guo X, Song C. Oxalic Acid Modification of β Zeolite for Dehydration of 2-(4′-Ethylbenzoyl) Benzoic Acid. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02235] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Min Liu
- State
Key Laboratory of Fine Chemicals, PSU-DUT Joint Center for Energy
Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yanxin Yin
- State
Key Laboratory of Fine Chemicals, PSU-DUT Joint Center for Energy
Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Xinwen Guo
- State
Key Laboratory of Fine Chemicals, PSU-DUT Joint Center for Energy
Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Chunshan Song
- State
Key Laboratory of Fine Chemicals, PSU-DUT Joint Center for Energy
Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
- EMS Energy Institute, PSU-DUT Joint Center for Energy Research and Department of Energy & Mineral Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
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18
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Pullella GA, Wild DA, Nealon GL, Elyashberg M, Piggott MJ. What Is the Structure of the Antitubercular Natural Product Eucapsitrione? J Org Chem 2017. [DOI: 10.1021/acs.joc.7b00863] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Glenn A. Pullella
- Chemistry,
School of Molecular Sciences, University of Western Australia, Perth, Australia
| | - Duncan A. Wild
- Chemistry,
School of Molecular Sciences, University of Western Australia, Perth, Australia
| | - Gareth L. Nealon
- Centre
for Microscopy, Characterisation and Analysis, University of Western Australia, Perth, Australia
| | - Mikhail Elyashberg
- Moscow
Department, Advanced Chemistry Development Ltd., 6 Akademik Bakulev
Street, Moscow 117513, Russian Federation
| | - Matthew J. Piggott
- Chemistry,
School of Molecular Sciences, University of Western Australia, Perth, Australia
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19
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An influence of the copy number of biosynthetic gene clusters on the production level of antibiotics in a heterologous host. J Biotechnol 2016; 232:110-7. [PMID: 27264245 DOI: 10.1016/j.jbiotec.2016.05.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 05/26/2016] [Accepted: 05/27/2016] [Indexed: 11/24/2022]
Abstract
Streptomyces albus J1074 is a well-known host for heterologous expression of secondary metabolites. To further increase its potential and to study the influence of cluster multiplication, additional φC31-attachment site was integrated into its genome using a system for transposon mutagenesis. Four secondary metabolite clusters were expressed in strains with different numbers of attachment sites, ranging from one to three copies of the site. Secondary metabolite production was examined and a new compound could be detected, purified and its structure was elucidated.
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20
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Roy J, Mal T, Jana S, Mal D. Regiodefined synthesis of brominated hydroxyanthraquinones related to proisocrinins. Beilstein J Org Chem 2016; 12:531-6. [PMID: 27340445 PMCID: PMC4901998 DOI: 10.3762/bjoc.12.52] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Accepted: 02/26/2016] [Indexed: 11/23/2022] Open
Abstract
Dibromobenzoisofuranone 12, synthesized in six steps, was regiospecifically annulated with 5-substituted cyclohexenones 13/36 in the presence of LiOt-Bu to give brominated anthraquinones 14/38 in good yields. Darzens condensation of 30 was shown to give chain-elongated anthraquinone 32. Alkaline hydrolysis of 38 furnished 39 representing desulfoproisocrinin F.
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Affiliation(s)
- Joyeeta Roy
- Department of Chemistry, Indian Institute of Technology, Kharagpur- 721302, India
| | - Tanushree Mal
- Department of Chemistry, Indian Institute of Technology, Kharagpur- 721302, India
| | - Supriti Jana
- Department of Chemistry, Indian Institute of Technology, Kharagpur- 721302, India
| | - Dipakranjan Mal
- Department of Chemistry, Indian Institute of Technology, Kharagpur- 721302, India
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21
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Jones KD, Rixson JE, Skelton BW, Gericke KM, Stewart SG. The Total Synthesis of Heraclemycin B through β-Ketosulfoxide and Aldehyde Annulation. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500184] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kieran D. Jones
- School of Chemistry and Biochemistry; The University of Western Australia (M310); 35 Stirling Highway Crawley WA 6009 (Australia)
| | - James E. Rixson
- School of Chemistry and Biochemistry; The University of Western Australia (M310); 35 Stirling Highway Crawley WA 6009 (Australia)
| | - Brian W. Skelton
- Centre for Microscopy, Characterisation and Analysis; The University of Western Australia; Crawley WA 6009 Australia
| | | | - Scott G. Stewart
- School of Chemistry and Biochemistry; The University of Western Australia (M310); 35 Stirling Highway Crawley WA 6009 (Australia)
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22
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Maier S, Heitzler T, Asmus K, Brötz E, Hardter U, Hesselbach K, Paululat T, Bechthold A. Functional characterization of different ORFs including luciferase-like monooxygenase genes from the mensacarcin gene cluster. Chembiochem 2015; 16:1175-82. [PMID: 25907804 DOI: 10.1002/cbic.201500048] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Indexed: 11/06/2022]
Abstract
The biologically active compound mensacarcin is produced by Streptomyces bottropensis. The cosmid cos2 contains a large part of the mensacarcin biosynthesis gene cluster. Heterologous expression of this cosmid in Streptomyces albus J1074 led to the production of the intermediate didesmethylmensacarcin (DDMM). In order to gain more insights into the biosynthesis, gene inactivation experiments were carried out by λ-Red/ET-mediated recombination, and the deletion mutants were introduced into the host S. albus. In total, 23 genes were inactivated. Analysis of the metabolic profiles of the mutant strains showed the complete collapse of DDMM biosynthesis, but upon overexpression of the SARP regulatory gene msnR1 in each mutant new intermediates were detected. The compounds were isolated, and their structures were elucidated. Based on the results the specific functions of several enzymes were determined, and a pathway for mensacarcin biosynthesis is proposed.
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Affiliation(s)
- Sarah Maier
- Institut für Pharmazeutische Biologie und Biotechnologie, Albert-Ludwigs Universität, Stefan-Meier-Strasse 19, 79104 Freiburg (Germany)
| | - Tanja Heitzler
- Institut für Pharmazeutische Biologie und Biotechnologie, Albert-Ludwigs Universität, Stefan-Meier-Strasse 19, 79104 Freiburg (Germany)
| | - Katharina Asmus
- Institut für Pharmazeutische Biologie und Biotechnologie, Albert-Ludwigs Universität, Stefan-Meier-Strasse 19, 79104 Freiburg (Germany)
| | - Elke Brötz
- Organic Chemsitry II, Universität Siegen, Adolf-Reichwein-Strasse 2, 57068 Siegen (Germany).,Present address: Helmholtz Institut für Pharmazeutische Forschung Saarland, Postfach 151150, 66041 Saarbrücken (Germany)
| | - Uwe Hardter
- Institut für Pharmazeutische Biologie und Biotechnologie, Albert-Ludwigs Universität, Stefan-Meier-Strasse 19, 79104 Freiburg (Germany)
| | - Katharina Hesselbach
- Institut für Pharmazeutische Biologie und Biotechnologie, Albert-Ludwigs Universität, Stefan-Meier-Strasse 19, 79104 Freiburg (Germany)
| | - Thomas Paululat
- Organic Chemsitry II, Universität Siegen, Adolf-Reichwein-Strasse 2, 57068 Siegen (Germany)
| | - Andreas Bechthold
- Institut für Pharmazeutische Biologie und Biotechnologie, Albert-Ludwigs Universität, Stefan-Meier-Strasse 19, 79104 Freiburg (Germany).
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23
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24
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Naeimi H, Brojerdi SS. Facile and Efficient One-Pot Synthesis of Anthraquinones from Benzene Derivatives Catalyzed by Silica Sulfuric Acid. Polycycl Aromat Compd 2014. [DOI: 10.1080/10406638.2014.910238] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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25
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Kitchawalit S, Kanokmedhakul K, Kanokmedhakul S, Soytong K. A new benzyl ester and ergosterol derivatives from the fungus Gymnoascus reessii. Nat Prod Res 2014; 28:1045-51. [PMID: 24708569 DOI: 10.1080/14786419.2014.903478] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A new benzyl ester, reessiate (1), anthraquinone, islandicin (2), ergosterol and seven ergosterol derivatives (3-9) were isolated from the fungus Gymnoascus reessii. All structures were identified by spectroscopic methods. This is the first report of their isolation from this fungus. Compounds 4-7 and 9 exhibited antimalarial activity against Plasmodium falciparum with IC50 values in the range of 3.3-4.5 μg/mL. In addition, 4 showed cytotoxicity against KB, MCF7 and NCI-H187 cancer cell lines. It was found that 4 has cytotoxic effect to MCF7 (IC50 = 7.9 μg/mL) lower than Doxorubicin (IC50 = 8.5 μg/mL).
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Affiliation(s)
- Sasiwimon Kitchawalit
- a Natural Products Research Unit, Department of Chemistry, and Center of Excellence for Innovation in Chemistry , Faculty of Science, Khon Kaen University , Khon Kaen 40002 , Thailand
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26
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Maier S, Pflüger T, Loesgen S, Asmus K, Brötz E, Paululat T, Zeeck A, Andrade S, Bechthold A. Insights into the bioactivity of mensacarcin and epoxide formation by MsnO8. Chembiochem 2014; 15:749-56. [PMID: 24554499 DOI: 10.1002/cbic.201300704] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Indexed: 12/12/2022]
Abstract
Mensacarcin, a potential antitumour drug, is produced by Streptomyces bottropensis. The structure consists of a three-membered ring system with many oxygen atoms. Of vital importance in this context is an epoxy moiety in the side chain of mensacarcin. Our studies with different mensacarcin derivatives have demonstrated that this epoxy group is primarily responsible for the cytotoxic effect of mensacarcin. In order to obtain further information about this epoxy moiety, inactivation experiments in the gene cluster were carried out to identify the epoxy-forming enzyme. Therefore the cosmid cos2, which covers almost the complete type II polyketide synthase (PKS) gene cluster, was heterologously expressed in Streptomyces albus. This led to production of didesmethylmensacarcin, due to the fact that methyltransferase genes are missing in the cosmid. Further gene inactivation experiments on this cosmid showed that MsnO8, a luciferase-like monooxygenase, introduces the epoxy group at the end of the biosynthesis of mensacarcin. In addition, the protein MsnO8 was purified, and its crystal structure was determined to a resolution of 1.80 Å.
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Affiliation(s)
- Sarah Maier
- Institut für Pharmazeutische Biologie und Biotechnologie, Albert-Ludwigs Universität, Stefan-Meier-Strasse 19, 79104 Freiburg (Germany)
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27
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Adhikari A, Datta A, Adhikari M, Chauhan K, Chuttani K, Saw S, Shukla A, Mishra AK. Preclinical Evaluation of DO3A-Act-AQ: A Polyazamacrocyclic Monomeric Anthraquinone Derivative as a Theranostic Agent. Mol Pharm 2014; 11:445-56. [DOI: 10.1021/mp4004089] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Anupriya Adhikari
- Division of Cyclotron and Radiopharmaceutical Sciences, Institute of Nuclear Medicine and Allied Sciences, Defence Research & Development Organization, Brig S K Mazumdar Road, Delhi-110054, India
- Department
of Chemistry, Kanya Gurukul Campus, Gurukul Kangri Vishwavidyalaya, Haridwar-249404, India
| | - Anupama Datta
- Division of Cyclotron and Radiopharmaceutical Sciences, Institute of Nuclear Medicine and Allied Sciences, Defence Research & Development Organization, Brig S K Mazumdar Road, Delhi-110054, India
| | - Manish Adhikari
- Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Defence Research & Development Organization, Brig S K Mazumdar Road, Delhi-110054, India
| | - Kanchan Chauhan
- Division of Cyclotron and Radiopharmaceutical Sciences, Institute of Nuclear Medicine and Allied Sciences, Defence Research & Development Organization, Brig S K Mazumdar Road, Delhi-110054, India
| | - Krishna Chuttani
- Division of Cyclotron and Radiopharmaceutical Sciences, Institute of Nuclear Medicine and Allied Sciences, Defence Research & Development Organization, Brig S K Mazumdar Road, Delhi-110054, India
| | - Sanjiv Saw
- Division of Clinical PET, Institute of Nuclear Medicine and Allied Sciences, Defence Research & Development Organization, Brig S K Mazumdar Road, Delhi-110054, India
| | - Abha Shukla
- Department
of Chemistry, Kanya Gurukul Campus, Gurukul Kangri Vishwavidyalaya, Haridwar-249404, India
| | - Anil K. Mishra
- Division of Cyclotron and Radiopharmaceutical Sciences, Institute of Nuclear Medicine and Allied Sciences, Defence Research & Development Organization, Brig S K Mazumdar Road, Delhi-110054, India
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28
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Percivalle C, Sissi C, Greco ML, Musetti C, Mariani A, Artese A, Costa G, Perrore ML, Alcaro S, Freccero M. Aryl ethynyl anthraquinones: a useful platform for targeting telomeric G-quadruplex structures. Org Biomol Chem 2014; 12:3744-54. [DOI: 10.1039/c4ob00220b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2,7-Diaryl ethynyl anthraquinones have been synthesized by Sonogashira cross-coupling and evaluated as telomeric G-quadruplex ligands, with good G-quadruplex/duplex selectivity.
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Affiliation(s)
| | - Claudia Sissi
- Department of Pharmaceutical and Pharmacological Sciences
- 35131 Padova, Italy
| | - Maria Laura Greco
- Department of Pharmaceutical and Pharmacological Sciences
- 35131 Padova, Italy
| | - Caterina Musetti
- Department of Pharmaceutical and Pharmacological Sciences
- 35131 Padova, Italy
| | | | - Anna Artese
- Dipartimento di Scienze della Salute
- Universitá di Catanzaro
- 88100 Catanzaro, Italy
| | - Giosuè Costa
- Dipartimento di Scienze della Salute
- Universitá di Catanzaro
- 88100 Catanzaro, Italy
| | | | - Stefano Alcaro
- Dipartimento di Scienze della Salute
- Universitá di Catanzaro
- 88100 Catanzaro, Italy
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29
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Zhao LM, Ma FY, Jin HS, Ma J, Wang H, Fu CZ. Facile Installation of a Hydroxyalkyl Group into Hydroxyanthraquinones and Aminoanthraquinones through the Modified Marschalk Reaction. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300891] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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30
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Salomão K, De Santana NA, Molina MT, De Castro SL, Menna-Barreto RFS. Trypanosoma cruzi mitochondrial swelling and membrane potential collapse as primary evidence of the mode of action of naphthoquinone analogues. BMC Microbiol 2013; 13:196. [PMID: 24004461 PMCID: PMC3848626 DOI: 10.1186/1471-2180-13-196] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Accepted: 08/30/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Naphthoquinones (NQs) are privileged structures in medicinal chemistry due to the biological effects associated with the induction of oxidative stress. The present study evaluated the activities of sixteen NQs derivatives on Trypanosoma cruzi. RESULTS Fourteen NQs displayed higher activity against bloodstream trypomastigotes of T. cruzi than benznidazole. Further assays with NQ1, NQ8, NQ9 and NQ12 showed inhibition of the proliferation of axenic epimastigotes and intracelulluar amastigotes interiorized in macrophages and in heart muscle cells. NQ8 was the most active NQ against both proliferative forms of T. cruzi. In epimastigotes the four NQs induced mitochondrial swelling, vacuolization, and flagellar blebbing. The treatment with NQs also induced the appearance of large endoplasmic reticulum profiles surrounding different cellular structures and of myelin-like membranous contours, morphological characteristics of an autophagic process. At IC50 concentration, NQ8 totally disrupted the ΔΨm of about 20% of the parasites, suggesting the induction of a sub-population with metabolically inactive mitochondria. On the other hand, NQ1, NQ9 or NQ12 led only to a discrete decrease of TMRE + labeling at IC50 values. NQ8 led also to an increase in the percentage of parasites labeled with DHE, indicative of ROS production, possibly the cause of the observed mitochondrial swelling. The other three NQs behaved similarly to untreated controls. CONCLUSIONS NQ1, NQ8, NQ9 and NQ12 induce an autophagic phenotype in T. cruzi epimastigoted, as already observed with others NQs. The absence of oxidative stress in NQ1-, NQ9- and NQ12-treated parasites could be due to the existence of more than one mechanism of action involved in their trypanocidal activity, leaving ROS generation suppressed by the detoxification system of the parasite. The strong redox effect of NQ8 could be associated to the presence of the acetyl group in its structure facilitating quinone reduction, as previously demonstrated by electrochemical analysis. Further experiments using biochemical and molecular approaches are needed to better characterize ROS participation in the mechanism of action of these NQs.
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Affiliation(s)
- Kelly Salomão
- Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av, Brasil 4365, Manguinhos, Rio de Janeiro RJ 21040-900, Brazil.
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31
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Podlesny EE, Kozlowski MC. Divergent approach to the bisanthraquinone natural products: total synthesis of (S)-bisoranjidiol and derivatives from binaphtho-para-quinones. J Org Chem 2013; 78:466-76. [PMID: 23249414 PMCID: PMC3560291 DOI: 10.1021/jo302364h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The development of the first asymmetric synthesis of a chiral anthraquinone dimer is outlined, resulting in the first total synthesis of (S)-bisoranjidiol. Rather than a biomimetic dimerization retrosynthetic disconnection, the anthracenyl ring systems are generated after formation of the axially chiral binaphthalene framework. This synthetic strategy has enabled the synthesis of several analogues. Key features of the synthesis include the enantioselective coupling of a hindered 2-naphthol containing substitution peri to the site of C-C bond formation, the regioselective oxidation of 8,8'-hydroxylated binaphthols to binaphtho-para-quinones, and a tandem regioselective Diels-Alder/aromatization reaction.
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Affiliation(s)
- Erin E. Podlesny
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Marisa C. Kozlowski
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
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32
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Hu Y, Martinez ED, MacMillan JB. Anthraquinones from a marine-derived Streptomyces spinoverrucosus. JOURNAL OF NATURAL PRODUCTS 2012; 75:1759-64. [PMID: 23057874 PMCID: PMC3488424 DOI: 10.1021/np3004326] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Four new anthraquinone analogues including galvaquinones A-C (1-3) and an isolation artifact, 5,8-dihydroxy-2,2,4-trimethyl-6-(3-methylbutyl)anthra[9,1-de][1,3]oxazin-7(2H)-one (4), were isolated from a marine-derived Streptomyces spinoverrucosus based on activity in an image-based assay to identify epigenetic modifying compounds. The structures of 1-4 were elucidated by comprehensive NMR and MS spectroscopic analysis. Galvaquinone B (2) was found to show epigenetic modulatory activity at 1.0 μM and exhibited moderate cytotoxicity against non-small-cell lung cancer (NSCLC) cell lines Calu-3 and H2887.
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Affiliation(s)
- Youcai Hu
- Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-9038, USA
| | - Elisabeth D. Martinez
- Department of Pharmacology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-9038, USA
| | - John B. MacMillan
- Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-9038, USA
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33
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Woo CM, Gholap SL, Lu L, Kaneko M, Li Z, Ravikumar PC, Herzon SB. Development of enantioselective synthetic routes to (-)-kinamycin F and (-)-lomaiviticin aglycon. J Am Chem Soc 2012; 134:17262-73. [PMID: 23030272 PMCID: PMC3505684 DOI: 10.1021/ja307497h] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The development of enantioselective synthetic routes to (-)-kinamycin F (9) and (-)-lomaiviticin aglycon (6) are described. The diazotetrahydrobenzo[b]fluorene (diazofluorene) functional group of the targets was prepared by fluoride-mediated coupling of a β-trimethylsilylmethyl-α,β-unsaturated ketone (38) with an oxidized naphthoquinone (19), palladium-catalyzed cyclization (39→37), and diazo transfer (37→53). The D-ring precursors 60 and 68 were prepared from m-cresol and 3-ethylphenol, respectively. Coupling of the β-trimethylsilylmethyl-α,β-unsaturated ketone 60 with the juglone derivative 61, cyclization, and diazo transfer provided the advanced diazofluorene 63, which was elaborated to (-)-kinamycin F (9) in three steps. The diazofluorene 87 was converted to the C(2)-symmetric lomaiviticin aglycon precursor 91 by enoxysilane formation and oxidative dimerization with manganese tris(hexafluoroacetylacetonate) (94, 26%). The stereochemical outcome in the coupling is attributed to the steric bias engendered by the mesityl acetal of 87 and contact ion pairing of the intermediates. The coupling product 91 was deprotected (tert-butylhydrogen peroxide, trifluoroacetic acid-dichloromethane) to form mixtures of the chain isomer of lomaiviticin aglycon 98 and the ring isomer 6. These mixtures converged on purification or standing to the ring isomer 6 (39-41% overall). The scope of the fluoride-mediated coupling process is delineated (nine products, average yield = 72%); a related enoxysilane quinonylation reaction is also described (10 products, average yield = 77%). We establish that dimeric diazofluorenes undergo hydrodediazotization 2-fold faster than related monomeric diazofluorenes. This enhanced reactivity may underlie the cytotoxic effects of (-)-lomaiviticin A (1). The simple diazofluorene 103 is a potent inhibitor of ovarian cancer stem cells (IC(50) = 500 nM).
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Affiliation(s)
- Christina M. Woo
- Department of Chemistry, Yale University, New Haven, CT 06520, United States
| | | | - Liang Lu
- Department of Chemistry, Yale University, New Haven, CT 06520, United States
| | - Miho Kaneko
- Department of Chemistry, Yale University, New Haven, CT 06520, United States
| | - Zhenwu Li
- Department of Chemistry, Yale University, New Haven, CT 06520, United States
| | - P. C. Ravikumar
- Department of Chemistry, Yale University, New Haven, CT 06520, United States
| | - Seth B. Herzon
- Department of Chemistry, Yale University, New Haven, CT 06520, United States
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34
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Zaleski PA, Maini R, Leiris SJ, Elban MA, Hecht SM. Synthesis and biological activities of topopyrones. JOURNAL OF NATURAL PRODUCTS 2012; 75:577-585. [PMID: 22462811 DOI: 10.1021/np200777z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Structure-activity studies were employed to investigate the stabilization of DNA-topoisomerases I and II covalent binary complexes by topopyrone analogues. The synthesis of five new topopyrone derivatives and study of their ability to stabilize DNA-topoisomerase I and DNA-topoisomerase II covalent binary complexes are described. The biochemical assays suggest that the orientation of the fused 1,4-pyrone ring and halogen substituents contribute importantly to the overall potency of the topopyrones as topoisomerase poisons.
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Affiliation(s)
- Paul A Zaleski
- Center for BioEnergetics, Biodesign Institute, Arizona State University, Tempe, Arizona 85287-6301, USA
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35
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Podlesny EE, Kozlowski MC. Enantioselective total synthesis of (S)-bisoranjidiol, an axially chiral bisanthraquinone. Org Lett 2012; 14:1408-11. [PMID: 22360604 DOI: 10.1021/ol3001365] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The first enantioselective total synthesis of the bisanthraquinone (S)-bisoranjidiol and an unnatural regioisomer has been accomplished. Key features of the synthesis include the asymmetric oxidative biaryl coupling of a hindered 8-substituted 2-naphthol, selective para-quinone formation, and regioselective tandem Diels-Alder/aromatization reactions.
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Affiliation(s)
- Erin E Podlesny
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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36
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Cordier P, Aubert C, Malacria M, Gandon V, Lacôte E. Oxidation of alpha-alkoxy allenes into alpha'-alkoxy enones. Chemistry 2011; 16:9973-6. [PMID: 20645348 DOI: 10.1002/chem.201000914] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Pierre Cordier
- UPMC Univ Paris 06, IPCM UMR CNRS 7201, 4 place Jussieu, 75005 Paris, France
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37
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Cytotoxic activity of naphthoquinones with special emphasis on juglone and its 5-O-methyl derivative. Chem Biol Interact 2010; 184:439-48. [PMID: 20138029 DOI: 10.1016/j.cbi.2010.01.041] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2009] [Revised: 01/26/2010] [Accepted: 01/27/2010] [Indexed: 11/22/2022]
Abstract
The cytotoxicity of nine naphthoquinones (NQ) was assayed against HL-60 (leukaemia), MDA-MB-435 (melanoma), SF-295 (brain) and HCT-8 (colon), all human cancer cell lines, and peripheral blood mononuclear cells (PBMC), as representatives of normal cells, after 72h of incubation. 5-Methoxy-1,4-naphthoquinone was the most active compound, showing IC(50) values in the range of 0.31 (1.7microM) in HL-60 to 0.88microg/mL (4.7microM) in SF-295 and IC(50) of 0.69microg/mL (3.7microM) against PBMC. With the introduction of a bromo-substituent in position 2 or 3 of juglone, the IC(50) significantly decreased, regardless of the position on the NQ moiety. However, compared with juglone methyl ether, the halogen substitution decreased the activity. To further understand the mechanism underlying the cytotoxicity of 5-methoxy-1,4-naphthoquinone, studies involving DNA fragmentation, cell cycle analysis, phosphatidyl serine externalization, mitochondrial depolarization and activation of caspases 8 and 3/7 were performed in HL-60 cell line, using doxorubicin as a positive control. The results indicate that the cytotoxic 5-methoxy-1,4-naphthoquinone activates caspases 8 and 3/7 and thus induces apoptosis independent of mitochondria.
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Ribeiro KA, de Carvalho CM, Molina MT, Lima EP, López-Montero E, Reys JRM, de Oliveira MBF, Pinto AV, Santana AEG, Goulart MO. Activities of naphthoquinones against Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae), vector of dengue and Biomphalaria glabrata (Say, 1818), intermediate host of Schistosoma mansoni. Acta Trop 2009; 111:44-50. [PMID: 19426662 DOI: 10.1016/j.actatropica.2009.02.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2008] [Revised: 02/13/2009] [Accepted: 02/13/2009] [Indexed: 10/21/2022]
Abstract
Larvicidal (against Aedes aegypti Linnaeus, 1762) and molluscicidal (against Biomphalaria glabrata Say, 1818) activities of several natural and synthetic naphthoquinones were measured, with significant results. The best larvicidal compound is 3-bromojuglone, while the better molluscicides are 2-bromo- and 3-bromo-5-acetoxy-1,4-naphthoquinones together with the 3-bromo-5-methoxy derivative. The present results reinforce the potential use of substituted hydroxyquinones, their salts and halogenated quinones as very promising compounds against 4th instar larves of Aedes aegypti, the vector of dengue and against adult snail of Biomphalaria glabrata.
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Mal D, Ray S. First Synthesis of 9,10-Dimethoxy-2-methyl-1,4-anthraquinone: A Naturally Occurring Unusual Anthraquinone. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800218] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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