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Shi S, Li J, Zhao X, Liu Q, Song SJ. A comprehensive review: Biological activity, modification and synthetic methodologies of prenylated flavonoids. PHYTOCHEMISTRY 2021; 191:112895. [PMID: 34403885 DOI: 10.1016/j.phytochem.2021.112895] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/18/2021] [Accepted: 07/31/2021] [Indexed: 06/13/2023]
Abstract
Prenylated flavonoids, a unique class of flavonoids which combine a flavonoid skeleton and a lipophilic prenyl side-chain, possess great potential biological activities including cytotoxicity, anti-inflammation, anti-Alzheimer, anti-microbial, anti-oxidant, anti-diabetes, estrogenic, vasorelaxant and enzyme inhibition. Recently, prenylated flavonoids have become an indispensable anchor for the development of new therapeutic agents, and have received increasing from medicinal chemists. The prenylated flavonoids have been outstanding developed through isolation, semi or fully synthesis in a very short period of time, which proves the great value in medicinal chemistry researches. In this review, research progress of prenylated flavonoids including natural prenylated flavonoids, structural modification, synthetic methodologies and pharmacological activities was summarized comprehensively. Furthermore, the structure-activity relationships (SARs) of prenylated flavonoids were summarized which provided a basis for the selective design and optimization of multifunctional prenylated flavonoid derivatives for the treatment of multi-factorial diseases in clinic.
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Affiliation(s)
- Shaochun Shi
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Jichong Li
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Xuemei Zhao
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Qingbo Liu
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China; Jilin Yizheng Pharmaceutical Group Co., Ltd., Jilin Province, Siping, 136001, China.
| | - Shao-Jiang Song
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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52
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Lünne F, Köhler J, Stroh C, Müller L, Daniliuc CG, Mück-Lichtenfeld C, Würthwein EU, Esselen M, Humpf HU, Kalinina SA. Insights into Ergochromes of the Plant Pathogen Claviceps purpurea. JOURNAL OF NATURAL PRODUCTS 2021; 84:2630-2643. [PMID: 34553942 DOI: 10.1021/acs.jnatprod.1c00264] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Claviceps purpurea is an ergot fungus known for its neurotropic alkaloids, which have been identified as the main cause of ergotism, a livestock and human disease triggered by ergot consumption. Tetrahydroxanthone dimers, the so-called ergopigments, presumably also contribute to this toxic effect. Overexpression of the cluster-specific transcription factor responsible for the formation of these pigments in C. purpurea led to the isolation of three new metabolites (8-10). The new pigments were characterized utilizing HRMS, NMR techniques, and CD spectroscopy and shown to be xanthone dimers. Secalonic acid A and its 2,4'- and 4,4'-linked isomers were also isolated, and their absolute configuration was investigated. The contribution of secalonic acid A, its isomers, and new metabolites to the toxicity of C. purpurea was investigated in HepG2 and CCF-STTG1 cells. Along with cytotoxic properties, secalonic acid A was found to inhibit topoisomerase I and II activity.
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Affiliation(s)
- Friederike Lünne
- Institut für Lebensmittelchemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 45, 48149 Münster, Germany
| | - Jens Köhler
- Institut für Pharmazeutische und Medizinische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 48, 48149 Münster, Germany
| | - Christina Stroh
- Institut für Lebensmittelchemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 45, 48149 Münster, Germany
| | - Lena Müller
- Institut für Lebensmittelchemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 45, 48149 Münster, Germany
| | - Constantin G Daniliuc
- Organisch-chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Christian Mück-Lichtenfeld
- Organisch-chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
- Center for Multiscale Theory and Computation, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Ernst-Ulrich Würthwein
- Organisch-chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
- Center for Multiscale Theory and Computation, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Melanie Esselen
- Institut für Lebensmittelchemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 45, 48149 Münster, Germany
| | - Hans-Ulrich Humpf
- Institut für Lebensmittelchemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 45, 48149 Münster, Germany
| | - Svetlana A Kalinina
- Institut für Lebensmittelchemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 45, 48149 Münster, Germany
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53
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Wairata J, Sukandar ER, Fadlan A, Purnomo AS, Taher M, Ersam T. Evaluation of the Antioxidant, Antidiabetic, and Antiplasmodial Activities of Xanthones Isolated from Garcinia forbesii and Their In Silico Studies. Biomedicines 2021; 9:biomedicines9101380. [PMID: 34680496 PMCID: PMC8533219 DOI: 10.3390/biomedicines9101380] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 12/16/2022] Open
Abstract
This study aimed to isolate xanthones from Garcinia forbesii and evaluated their activity in vitro and in silico. The isolated compounds were evaluated for their antioxidant activity by DPPH, ABTS and FRAP methods. The antidiabetic activity was performed against α-glucosidase and α-amylase enzymes. The antiplasmodial activity was evaluated using Plasmodium falciparum strain 3D7 sensitive to chloroquine. Molecular docking analysis on the human lysosomal acid-alpha-glucosidase enzyme (5NN8) and P. falciparum lactate dehydrogenase enzyme (1CET) and prediction of ADMET for the active compound, were also studied. For the first time, lichexanthone (1), subelliptenone H (2), 12b-hydroxy-des-D-garcigerrin A (3), garciniaxanthone B (4) and garcigerin A (5) were isolated from the CH2Cl2 extract of the stem bark of G. forbesii. Four xanthones (Compounds 2-5) showed strong antioxidant activity. In vitro α-glucosidase test showed that Compounds 2 and 5 were more active than the others, while Compound 4 was the strongest against α-amylase enzymes. In vitro antiplasmodial evaluation revealed that Compounds 2 and 3 showed inhibitory activity on P. falciparum. Molecular docking studies confirmed in vitro activity. ADMET predictions suggested that Compounds 1-5 were potential candidates for oral drugs. The isolated 2-5 can be used as promising phytotherapy in antidiabetic and antiplasmodial treatment.
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Affiliation(s)
- Johanis Wairata
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS), Kampus ITS Sukolilo, Surabaya 60111, Indonesia; (J.W.); (E.R.S.); (A.F.); (A.S.P.)
- Department of Agrotechnology, Faculty of Natural Science and Engineering Technology, University Halmahera, Jalan Wari-Ino, Tobelo, North Halmahera 97762, Indonesia
| | - Edwin Risky Sukandar
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS), Kampus ITS Sukolilo, Surabaya 60111, Indonesia; (J.W.); (E.R.S.); (A.F.); (A.S.P.)
| | - Arif Fadlan
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS), Kampus ITS Sukolilo, Surabaya 60111, Indonesia; (J.W.); (E.R.S.); (A.F.); (A.S.P.)
| | - Adi Setyo Purnomo
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS), Kampus ITS Sukolilo, Surabaya 60111, Indonesia; (J.W.); (E.R.S.); (A.F.); (A.S.P.)
| | - Muhammad Taher
- Department of Pharmaceutical Technology, Kulliyyah of Pharmacy, International Islamic University Malaysia, Bandar Indera Mahkota, Kuantan 25200, Malaysia;
| | - Taslim Ersam
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS), Kampus ITS Sukolilo, Surabaya 60111, Indonesia; (J.W.); (E.R.S.); (A.F.); (A.S.P.)
- Correspondence: ; Tel.: +62-813-3073-1952
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54
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Peng X, Sun F, Li G, Wang C, Zhang Y, Wu C, Zhang C, Sun Y, Wu S, Zhang Y, Zong H, Guo R, Lou H. New Xanthones with Antiagricultural Fungal Pathogen Activities from the Endophytic Fungus Diaporthe goulteri L17. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:11216-11224. [PMID: 34541846 DOI: 10.1021/acs.jafc.1c03513] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Six new xanthone dimers, diaporxanthones A-F (1-6), and an unusual xanthone monomer diaporxanthone G (7), in addition to seven known analogues (8-14), were isolated and identified from endophytic Diaporthe goulteri L17 harbored in the fruits of the salt-tolerant plant Vitex trifolia. The chemical structures of these metabolites were elucidated on the basis of nuclear magnetic resonance, high-resolution electrospray ionization mass spectrometry, and reported data in the literature. Their absolute configurations were established by single-crystal X-ray diffraction analysis together with time-dependent density functional theory electronic circular dichroism calculations. Among these compounds, compounds 1 and 6 exhibited moderate antifungal activities against Nectria sp. and Colletotrichum musae and compound 4 showed significant cytotoxicity against all selected five cancer cell lines.
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Affiliation(s)
- Xiaoping Peng
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, Shandong 266021, People's Republic of China
| | - Fusheng Sun
- Department of Pharmacy, Qingdao Municipal Hospital, Qingdao, Shandong 266071, People's Republic of China
| | - Gang Li
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, Shandong 266021, People's Republic of China
| | - Cong Wang
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning, Guangxi 530006, People's Republic of China
| | - Yuhan Zhang
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, Shandong 266021, People's Republic of China
| | - Changzheng Wu
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, Shandong 266021, People's Republic of China
| | - Chunyang Zhang
- Key Laboratory of Chemical Biology of Ministry of Education, Department of Natural Product Chemistry, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong 250012, People's Republic of China
| | - Yong Sun
- Key Laboratory of Chemical Biology of Ministry of Education, Department of Natural Product Chemistry, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong 250012, People's Republic of China
| | - Siyi Wu
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, Shandong 266021, People's Republic of China
| | - Yuxiang Zhang
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, Shandong 266021, People's Republic of China
| | - Hui Zong
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, Shandong 266021, People's Republic of China
| | - Rui Guo
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, Shandong 266021, People's Republic of China
| | - Hongxiang Lou
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, Shandong 266021, People's Republic of China
- Key Laboratory of Chemical Biology of Ministry of Education, Department of Natural Product Chemistry, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong 250012, People's Republic of China
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55
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Yang J, Mori T, Wei X, Matsuda Y, Abe I. Structural Basis for Isomerization Reactions in Fungal Tetrahydroxanthone Biosynthesis and Diversification. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107884] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Jiali Yang
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Takahiro Mori
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Collaborative Research Institute for Innovative Microbiology The University of Tokyo 1-1-1 Yayoi, Bunkyo-ku Tokyo 113-8657 Japan
- PRESTO Japan Science and Technology Agency Kawaguchi Saitama 332-0012 Japan
| | - Xingxing Wei
- Department of Chemistry City University of Hong Kong Tat Chee Avenue Kowloon, Hong Kong SAR China
| | - Yudai Matsuda
- Department of Chemistry City University of Hong Kong Tat Chee Avenue Kowloon, Hong Kong SAR China
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Collaborative Research Institute for Innovative Microbiology The University of Tokyo 1-1-1 Yayoi, Bunkyo-ku Tokyo 113-8657 Japan
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56
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Moczulski M, Kowalska E, Kuśmierek E, Albrecht Ł, Albrecht A. Visible-light synthesis of 4-substituted-chroman-2-ones and 2-substituted-chroman-4-ones via doubly decarboxylative Giese reaction. RSC Adv 2021; 11:27782-27786. [PMID: 35480728 PMCID: PMC9037851 DOI: 10.1039/d1ra05914a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 08/06/2021] [Indexed: 12/27/2022] Open
Abstract
Doubly decarboxylative, photoredox synthesis of 4-substituted-chroman-2-ones and 2-substituted-chroman-4-ones is described. The reaction involves two independent decarboxylation processes: the first one initiating the cycle and the second completing the process. Visible light, photoredox catalyst, base, anhydrous solvent and inert atmosphere constitute the key parameters for the success of the developed transformation. The protocol proved applicable for coumarin-3-carboxylic acids and chromone-3-carboxylic acids as well as N-(acyloxy)phthalimide which served as precursors of the corresponding alkyl radicals. The manuscript describes the doubly decarboxylative Giese reaction between N-(acyloxy)phthalimides and coumarin-3-carboxylic acids or chromone-3-carboxylic acids.![]()
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Affiliation(s)
- Marek Moczulski
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology Żeromskiego 116 90-924 Łódź Poland
| | - Ewelina Kowalska
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology Żeromskiego 116 90-924 Łódź Poland
| | - Elżbieta Kuśmierek
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology Żeromskiego 116 90-924 Łódź Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology Żeromskiego 116 90-924 Łódź Poland
| | - Anna Albrecht
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology Żeromskiego 116 90-924 Łódź Poland
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57
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Nudelman A. Dimeric Drugs. Curr Med Chem 2021; 29:2751-2845. [PMID: 34375175 DOI: 10.2174/0929867328666210810124159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 06/18/2021] [Accepted: 06/29/2021] [Indexed: 11/22/2022]
Abstract
This review intends to summarize the structures of an extensive number of symmetrical-dimeric drugs, having two monomers linked via a bridging entity while emphasizing the large versatility of biologically active substances reported to possess dimeric structures. The largest number of classes of these compounds consist of anticancer agents, antibiotics/antimicrobials, and anti-AIDS drugs. Other symmetrical-dimeric drugs include antidiabetics, antidepressants, analgesics, anti-inflammatories, drugs for the treatment of Alzheimer's disease, anticholesterolemics, estrogenics, antioxidants, enzyme inhibitors, anti-Parkisonians, laxatives, antiallergy compounds, cannabinoids, etc. Most of the articles reviewed do not compare the activity/potency of the dimers to that of their corresponding monomers. Only in limited cases, various suggestions have been made to justify unexpected higher activity of the dimers vs. the corresponding monomers. These suggestions include statistical effects, the presence of dimeric receptors, binding of a dimer to two receptors simultaneously, and others. It is virtually impossible to predict which dimers will be preferable to their respective monomers, or which linking bridges will lead to the most active compounds. It is expected that the extensive number of articles summarized, and the large variety of substances mentioned, which display various biological activities, should be of interest to many academic and industrial medicinal chemists.
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Affiliation(s)
- Abraham Nudelman
- Chemistry Department, Bar Ilan University, Ramat Gan 52900, Israel
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58
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Sun J, Gu W, Yang H, Tang W. Enantioselective total synthesis of parnafungin A1 and 10a- epi-hirtusneanine. Chem Sci 2021; 12:10313-10320. [PMID: 34377417 PMCID: PMC8336460 DOI: 10.1039/d1sc02919c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 06/30/2021] [Indexed: 12/11/2022] Open
Abstract
The first and enantioselective total synthesis of the heterodimeric biaryl antifungal natural product parnafungin A1 as well as complex biaryl tetrahydroxanthone 10a-epi-hirtusneanine is accomplished, by employing cross-coupling through the benzoxaborole strategy to construct their sterically hindered biaryl cores. Besides the powerful Suzuki-Miyaura cross-coupling, the synthesis of parnafungin A1 also features a highly diastereoselective oxa-Michael addition to construct a tetrahydroxanthone skeleton, and an effective Zn-mediated reductive cyclization-Mitsunobu sequence to furnish the isoxazolidinone structure. Key innovations in total synthesis of 10a-epi-hirtusneanine include the employment of DTBS protection for functional group manipulation on the tetrahydroxanthone skeleton, stereoselective methylations, and complete reversal of the stereochemistry of the C5-hydroxy group using oxidation/Evans-Saksena reduction, as well as the strategy of preparing both complex tetrahydroxanthone monomers from the same chiral intermediate 25.
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Affiliation(s)
- Jiawei Sun
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences 345 Ling Ling Rd Shanghai 200032 China
| | - Wei Gu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences 345 Ling Ling Rd Shanghai 200032 China
| | - He Yang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences 345 Ling Ling Rd Shanghai 200032 China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences 345 Ling Ling Rd Shanghai 200032 China.,School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences 1 Sub-lane Xiangshan Hangzhou 310024 China
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59
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Bojanowski J, Albrecht A. Doubly Decarboxylative Synthesis of 4-(Pyridylmethyl)chroman-2-ones and 2-(Pyridylmethyl)chroman-4-ones under Mild Reaction Conditions. Molecules 2021; 26:molecules26154689. [PMID: 34361840 PMCID: PMC8347554 DOI: 10.3390/molecules26154689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/25/2021] [Accepted: 07/28/2021] [Indexed: 11/16/2022] Open
Abstract
The doubly decarboxylative Michael-type addition of pyridylacetic acid to chromone-3-carboxylic acids or coumarin-3-carboxylic acids has been developed. This protocol has been realized under Brønsted base catalysis, providing biologically interesting 4-(pyridylmethyl)chroman-2-ones and 2-(pyridylmethyl)chroman-4-ones in good or very good yields. The decarboxylative reaction pathway has been confirmed by mechanistic studies. Moreover, attempts to develop an enantioselective variant of the cascade are also described.
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60
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Rohr M, Kiefer AM, Kauhl U, Groß J, Opatz T, Erkel G. Anti-inflammatory dihydroxanthones from a Diaporthe species. Biol Chem 2021; 403:89-101. [PMID: 34333887 DOI: 10.1515/hsz-2021-0192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 07/09/2021] [Indexed: 11/15/2022]
Abstract
In a search for anti-inflammatory compounds from fungi inhibiting the promoter activity of the small chemokine CXCL10 (Interferon-inducible protein 10, IP-10) as a pro-inflammatory marker gene, the new dihydroxanthone methyl (1R, 2R)-1,2,8-trihydroxy-6-(hydroxymethyl)-9-oxo-2,9-dihydro-1H-xanthene-1-carboxylate (2) and the previously described dihydroxanthone AGI-B4 (1) were isolated from fermentations of a Diaporthe species. The structures of the compounds were elucidated by a combination of one- and two-dimensional NMR spectroscopy, mass spectrometry, and calculations using density functional theory (DFT). Compounds 1 and 2 inhibited the LPS/IFNγ induced CXCL10 promoter activity in transiently transfected human MonoMac6 cells in a dose-dependent manner with IC50 values of 4.1 µM (±0.2 µM) and 1.0 µM (±0.06 µM) respectively. Moreover, compounds 1 and 2 reduced mRNA levels and synthesis of pro-inflammatory mediators such as cytokines and chemokines in LPS/IFNγ stimulated MonoMac6 cells by interfering with the Stat1 and NFκB pathway.
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Affiliation(s)
- Markus Rohr
- Department of Molecular Biotechnology and Systems Biology, University of Kaiserslautern, Paul-Ehrlich-Strasse 23, D-67663Kaiserslautern, Germany
| | - Anna Maria Kiefer
- Department of Molecular Biotechnology and Systems Biology, University of Kaiserslautern, Paul-Ehrlich-Strasse 23, D-67663Kaiserslautern, Germany
| | - Ulrich Kauhl
- Department of Chemistry, University of Mainz, Duesbergweg 10-14, D-55128Mainz, Germany
| | - Jonathan Groß
- Department of Chemistry, University of Mainz, Duesbergweg 10-14, D-55128Mainz, Germany
| | - Till Opatz
- Department of Chemistry, University of Mainz, Duesbergweg 10-14, D-55128Mainz, Germany
| | - Gerhard Erkel
- Department of Molecular Biotechnology and Systems Biology, University of Kaiserslautern, Paul-Ehrlich-Strasse 23, D-67663Kaiserslautern, Germany
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61
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Yang J, Mori T, Wei X, Matsuda Y, Abe I. Structural Basis for Isomerization Reactions in Fungal Tetrahydroxanthone Biosynthesis and Diversification. Angew Chem Int Ed Engl 2021; 60:19458-19465. [PMID: 34180120 DOI: 10.1002/anie.202107884] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Indexed: 11/08/2022]
Abstract
The novel isomerase NsrQ, from Aspergillus novofumigatus, is a key enzyme in the biosynthesis of fungal tetrahydroxanthones and is responsible for dearomatizing cyclization to provide a tetrahydroxanthone scaffold. NsrQ catalyzes a two-step isomerization reaction, involving the isomerization of allylic alcohol and subsequent inversion of configuration at the methyl group. We report on the biochemical and structural characterizations of NsrQ, and its homologue Dcr3, from Diaporthe longicolla. The crystal structures of NsrQ and Dcr3 revealed their similar overall structures, with a cone-shaped α+β barrel fold, to those of the nuclear transport factor 2-like superfamily enzymes. Furthermore, the structures of Dcr3 and NsrQ variants complexed with substrate analogues and the site-directed mutagenesis studies identified the catalytic residues and the important hydrophobic residues in shaping the active site pocket for substrate binding. These enzymes thus utilize Glu and His residues as acid-base catalysts. Based on these observations, we proposed a detailed reaction mechanism for NsrQ-catalyzed isomerization reactions.
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Affiliation(s)
- Jiali Yang
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Takahiro Mori
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.,PRESTO Japan, Science and Technology Agency, Kawaguchi, Saitama, 332-0012, Japan
| | - Xingxing Wei
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China
| | - Yudai Matsuda
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
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62
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Khattab AR, Farag MA. Marine and terrestrial endophytic fungi: a mine of bioactive xanthone compounds, recent progress, limitations, and novel applications. Crit Rev Biotechnol 2021; 42:403-430. [PMID: 34266351 DOI: 10.1080/07388551.2021.1940087] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Endophytic fungi are a kind of fungi that colonizes living plant tissues presenting a myriad of microbial adaptations that have been developed in such a hidden environment. Owing to its large diversity and particular habituation, they present a golden mine for research in the field of drug discovery. Endophytic fungal communities possess unique biocatalytic machinery that furnishes a myriad of complex natural product scaffolds. Xanthone compounds are examples of endophytic secondary metabolic products with pronounced biological activity to include: antioxidant, antimicrobial, anti-inflammatory, antithrombotic, antiulcer, choleretic, diuretic, and monoamine oxidase inhibiting activity.The current review compiles the recent progress made on the microbiological production of xanthones using fungal endophytes obtained from both marine and terrestrial origins, with comparisons being made among both natural resources. The biosynthesis of xanthones in endophytic fungi is outlined along with its decoding enzymes. Biotransformation reactions reported to be carried out using different endophytic microbial models are also outlined for xanthones structural modification purposes and the production of novel molecules.A promising application of novel computational tools is presented as a future direction for the goal of optimizing microbial xanthones production to include establishing metabolic pathway databases and the in silico analysis of microbial interactions. Metagenomics methods and related bioinformatics platforms are highlighted as unexplored tools for the biodiversity analysis of endophytic microbial communities that are difficult to be cultured.
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Affiliation(s)
- Amira R Khattab
- Pharmacognosy Department, College of Pharmacy, Arab Academy for Science, Technology and Maritime Transport, Alexandria, Egypt
| | - Mohamed A Farag
- Pharmacognosy Department, College of Pharmacy, Cairo University, Cairo, Egypt.,Chemistry Department, School of Sciences & Engineering, The American University in Cairo, New Cairo, Egypt
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63
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Zhang M, He XW, Xiong Y, Zuo X, Zhou W, Liu XL. Asymmetric construction of six vicinal stereogenic centers on hexahydroxanthones via organocatalytic one-pot reactions. Chem Commun (Camb) 2021; 57:6764-6767. [PMID: 34132270 DOI: 10.1039/d1cc02570h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Inspired by the chemistry and biology of hexahydroxanthones, herein we report an organocatalytic Michael-Michael-Aldol-decarboxylation reaction that provides efficient access to biologically interesting fully substituted hexahydroxanthones bearing six contiguous stereogenic centers from readily accessible materials in acceptable yields (up to 63%) and excellent stereoselectivities (up to 10 : 1 dr and >99% ee). In other words, the reaction efficiently produces three chemical bonds and up to six vicinal stereogenic centers in a one-pot operation. In particular, to our knowledge, this is an asymmetric organocatalytic strategy enabling the first construction of six vicinal stereogenic centers on non-spirocyclic hexahydroxanthone frameworks.
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Affiliation(s)
- Min Zhang
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Xue-Wen He
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Ya Xiong
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Xiong Zuo
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Wei Zhou
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Xiong-Li Liu
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
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64
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Zhang D, Gu G, Zhang B, Wang Y, Bai J, Fang Y, Zhang T, Dai S, Cen S, Yu L. New phenol and chromone derivatives from the endolichenic fungus Daldinia species and their antiviral activities. RSC Adv 2021; 11:22489-22494. [PMID: 35480826 PMCID: PMC9034232 DOI: 10.1039/d1ra03754d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 06/14/2021] [Indexed: 11/21/2022] Open
Abstract
Three new phenolic metabolites, daldispols A–C (1–3), two new chromone derivatives, (5R,7R)-5,7-dihydroxy-2-methyl-5,6,7,8-tetrahydro-4H-chromen-4-one (9) and (5R,7R)-5,7-dihydroxy-2-propyl-5,6,7,8-tetrahydro-4H-chromen-4-one (10), together with five known phenolic compounds (4–8) and two known chromone compounds (11 and 12) were isolated from the endolichenic fungus Daldinia sp. CPCC 400770. Their structures were elucidated on the basis of spectroscopic methods, electronic circular dichroism (ECD), and comparison with reported data. Compounds 1, 3, 4, 9, and 11 exhibited significant anti-influenza A virus (IAV) activities with IC50 values of 12.7, 6.4, 12.5, 16.1, and 9.0 μM, respectively, and compound 8 displayed significant anti-ZIKV activity with inhibitory ratio of 42.7% at 10 μM. The results demonstrated that the fungus Daldinia sp. CPCC 400770 might be a rich source for discovering anti-IAV secondary metabolites as potential novel leading compounds. Eight phenols including three new ones (1–3) and four chromones including two new ones (9 and 10) were isolated from endolichenic fungus Daldinia sp. CPCC 400770, and some of them showed significant antiviral activities.![]()
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Affiliation(s)
- Dewu Zhang
- Division for Medicinal Microorganisms Related Strains CAMS Collection Center of Pathogenic Microorganisms, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 P. R. China
| | - Guowei Gu
- Division for Medicinal Microorganisms Related Strains CAMS Collection Center of Pathogenic Microorganisms, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 P. R. China
| | - Bingyuan Zhang
- Division for Medicinal Microorganisms Related Strains CAMS Collection Center of Pathogenic Microorganisms, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 P. R. China .,School of Pharmacy, Yantai University Yantai 264005 P. R. China
| | - Yujia Wang
- Division for Medicinal Microorganisms Related Strains CAMS Collection Center of Pathogenic Microorganisms, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 P. R. China
| | - Jinglin Bai
- Division for Medicinal Microorganisms Related Strains CAMS Collection Center of Pathogenic Microorganisms, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 P. R. China
| | - Yuang Fang
- Division for Medicinal Microorganisms Related Strains CAMS Collection Center of Pathogenic Microorganisms, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 P. R. China
| | - Tao Zhang
- Division for Medicinal Microorganisms Related Strains CAMS Collection Center of Pathogenic Microorganisms, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 P. R. China
| | - Shengjun Dai
- School of Pharmacy, Yantai University Yantai 264005 P. R. China
| | - Shan Cen
- Division for Medicinal Microorganisms Related Strains CAMS Collection Center of Pathogenic Microorganisms, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 P. R. China
| | - Liyan Yu
- Division for Medicinal Microorganisms Related Strains CAMS Collection Center of Pathogenic Microorganisms, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 P. R. China
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Ivakhnitskaia E, Chin MR, Siegel D, Guaiquil VH. Vinaxanthone inhibits Semaphorin3A induced axonal growth cone collapse in embryonic neurons but fails to block its growth promoting effects on adult neurons. Sci Rep 2021; 11:13019. [PMID: 34155284 PMCID: PMC8217491 DOI: 10.1038/s41598-021-92375-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 06/09/2021] [Indexed: 11/30/2022] Open
Abstract
Semaphorin3A is considered a classical repellent molecule for developing neurons and a potent inhibitor of regeneration after nervous system trauma. Vinaxanthone and other Sema3A inhibitors are currently being tested as possible therapeutics to promote nervous system regeneration from injury. Our previous study on Sema3A demonstrated a switch in Sema3A's function toward induction of nerve regeneration in adult murine corneas and in culture of adult peripheral neurons. The aim of the current study is to determine the direct effects of Vinaxanthone on the Sema3A induced adult neuronal growth. We first demonstrate that Vinaxanthone maintains its anti-Sema3A activity in embryonic dorsal root ganglia neurons by inhibiting Sema3A-induced growth cone collapse. However, at concentrations approximating its IC50 Vinaxanthone treatment does not significantly inhibit neurite formation of adult peripheral neurons induced by Sema3A treatment. Furthermore, Vinaxanthone has off target effects when used at concentrations above its IC50, and inhibits neurite growth of adult neurons treated with either Sema3A or NGF. Our results suggest that Vinaxanthone's pro-regenerative effects seen in multiple in vivo models of neuronal injury in adult animals need further investigation due to the pleiotropic effect of Sema3A on various non-neuronal cell types and the possible effect of Vinaxanthone on other neuroregenerative signals.
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Affiliation(s)
- Evguenia Ivakhnitskaia
- Department of Ophthalmology and Visual Sciences, University of Illinois-Chicago, Chicago, IL, USA
| | - Matthew R Chin
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, USA
| | - Dionicio Siegel
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, USA
| | - Victor H Guaiquil
- Department of Ophthalmology and Visual Sciences, University of Illinois-Chicago, Chicago, IL, USA.
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66
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Kifer D, Sulyok M, Jakšić D, Krska R, Šegvić Klarić M. Fungi and their metabolites in grain from individual households in Croatia. FOOD ADDITIVES & CONTAMINANTS. PART B, SURVEILLANCE 2021; 14:98-109. [PMID: 33583343 DOI: 10.1080/19393210.2021.1883746] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A total of 117 fungal metabolites were detected in grains collected in Gunja-G (flooded village) and Gornji Stupnik-GS (control village), located in the Zagreb County, Croatia. Major mycotoxins and derivatives (17), ergot alkaloids (14), Fusarium (23), Aspergillus (18), Penicillium (18), Alternaria (7) and other fungal and unspecific metabolites (20) were found. A higher number of metabolites co-occurred per sample in grains from G (115) than in GS (91). Regulated mycotoxins were below maximum limits except fumonisins B1,2 in 15-20% of grains and aflatoxin B1. Fusarium metabolites contaminated more than 50% of grains at both locations. Besides FB1,2, bikaverin, aurofusarin, culmorin and 15-hidroxyculmorin were detected at relatively high concentrations. Ergot alkaloids were detected at 2-18 times higher concentrations in grains from G as compared to GS. Majority of Aspergillus mycotoxins were present at a low frequency (5-15%). Penicillium metabolites recovered with higher frequency in GS (55-70%) than in G (20-55%). Alteranaria metabolites prevailed in grains from G (60-80%).
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Affiliation(s)
- Domagoj Kifer
- Department of Biophysics, University of Zagreb, Zagreb, Croatia
| | - Michael Sulyok
- Center for Analytical Chemistry, Department of Agrobiotechnology (Ifa-tulln), University of Natural Resources and Life Sciences, Vienna, Austria
| | - Daniela Jakšić
- Department of Microbiology, Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
| | - Rudolf Krska
- Center for Analytical Chemistry, Department of Agrobiotechnology (Ifa-tulln), University of Natural Resources and Life Sciences, Vienna, Austria.,Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, Belfast, UK
| | - Maja Šegvić Klarić
- Department of Microbiology, Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
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67
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Wei X, Chen X, Chen L, Yan D, Wang WG, Matsuda Y. Heterologous Biosynthesis of Tetrahydroxanthone Dimers: Determination of Key Factors for Selective or Divergent Synthesis. JOURNAL OF NATURAL PRODUCTS 2021; 84:1544-1549. [PMID: 33891392 DOI: 10.1021/acs.jnatprod.1c00022] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Tetrahydroxanthone dimers are fungal products, among which secalonic acid D (1) is one of the most studied compounds because of its potent biological activity. Because the biosynthetic gene cluster of 1 has been previously identified, we sought to heterologously produce 1 in Aspergillus oryzae by expressing the relevant biosynthetic genes. However, our initial attempt of the total biosynthesis of 1 failed; instead, it produced four isomers of 1 due to the activity of an endogenous enzyme of A. oryzae. Subsequent overexpression of the Baeyer-Villiger monooxygenase, AacuH, which competes with the endogenous enzyme, altered the product profile and successfully generated 1. Characterization of the key biosynthetic enzymes revealed the surprising substrate promiscuity of the dimerizing enzyme, AacuE, and indicated that efficient synthesis of 1 requires highly selective preparation of the tetrahydroxanthone monomer, which is apparently controlled by AacuH. This study facilitates engineered biosynthesis of tetrahydroxanthone dimers both in a selective and divergent manner.
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Affiliation(s)
- Xingxing Wei
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, People's Republic of China
| | - Xiaoxuan Chen
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, People's Republic of China
| | - Lin Chen
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, People's Republic of China
| | - Dexiu Yan
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, People's Republic of China
| | - Wei-Guang Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650031, People's Republic of China
| | - Yudai Matsuda
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, People's Republic of China
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68
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Li S, Zhang L, He Q, Zhang X, Yang C. Synthesis of 2-alkyl-chroman-4-ones via cascade alkylation-dechlorination of 3-chlorochromones. Org Biomol Chem 2021; 19:5348-5352. [PMID: 34042936 DOI: 10.1039/d1ob00463h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and mild synthetic approach for 2-alkyl-substituted chroman-4-ones via zinc-mediated cascade decarboxylative β-alkylation and dechlorination of 3-chlorochromones was developed. This transformation employed commercially available starting materials and was performed under mild conditions without heat, visible light, peroxide or heavy metals. Moreover, various alkyl NHPI esters with functional groups and differently substituted 3-chlorochromones were tolerated, affording the targeted products with moderate to excellent yields. This protocol could be utilized to construct a diverse library of 2-substituted chroman-4-one derivatives, which could be useful in the discovery of lead compounds for drug discovery in the future.
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Affiliation(s)
- Shunyao Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China. and School of Pharmacy, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Lanfei Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Qian He
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Xiaofei Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Chunhao Yang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China. and School of Pharmacy, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
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69
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Lv XJ, Ding F, Wei YJ, Tan RX. Antiosteoporotic Tetrahydroxanthone Dimers from
Aspergillus brunneoviolaceus
FB
‐2 Residing in Human Gut. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiao Jing Lv
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Fei Ding
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Ying Jie Wei
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Ren Xiang Tan
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University Nanjing Jiangsu 210023 China
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70
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Guan Y, Buivydas TA, Lalisse RF, Attard JW, Ali R, Stern C, Hadad CM, Mattson AE. Robust, Enantioselective Construction of Challenging, Biologically Relevant Tertiary Ether Stereocenters. ACS Catal 2021; 11:6325-6333. [PMID: 37636585 PMCID: PMC10457089 DOI: 10.1021/acscatal.1c01095] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A robust, catalytic enantioselective method to construct challenging, biologically relevant, tertiary ether stereocenters has been developed. The process capitalizes on readily accessible bis(oxazoline) ligands to control the facial selectivity of the addition of copper acetylides to benzopyrylium triflates, reactive species generated in situ. Up to 99% enantiomeric excesses are achieved with a broad substrate scope. Using density functional theory (DFT) calculations, the origin of the experimentally observed enantiocontrol was attributed to additional non-covalent interactions observed in the transition state leading to the major enantiomer, such as π-stacking. The resultant substrates have direct applications in the synthesis of naturally occurring bioactive chromanones and tetrahydroxanthones.
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Affiliation(s)
- Yong Guan
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 60 Prescott St., Worcester, MA 01609
| | - Tadas A. Buivydas
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 60 Prescott St., Worcester, MA 01609
| | - Remy F. Lalisse
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210
| | - Jonathan W. Attard
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 60 Prescott St., Worcester, MA 01609
| | - Rameez Ali
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 60 Prescott St., Worcester, MA 01609
| | - Charlotte Stern
- Integrated Molecular Structure Education and Research Center, Northwestern University, Evanston, IL, 60208
| | - Christopher M. Hadad
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210
| | - Anita E. Mattson
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 60 Prescott St., Worcester, MA 01609
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71
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Khoshbakht M, Thanaussavadate B, Zhu C, Cao Y, Zakharov LN, Loesgen S, Blakemore PR. Total Synthesis of Chalaniline B: An Antibiotic Aminoxanthone from Vorinostat-Treated Fungus Chalara sp. 6661. J Org Chem 2021; 86:7773-7780. [PMID: 34000192 DOI: 10.1021/acs.joc.1c00528] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Chalaniline B [1-anilino-2,8-dihydroxy-3-(hydroxymethyl)xanthone], an antibiotic previously isolated from vorinostat-treated Chalara sp., was prepared in 7 steps from 2-hydroxyxanthone by a route incorporating regioselective oxidative transformations (bromination at C1/C3, ketone directed Pd(II)-catalyzed hydroxylation at C8), installation of the C1-anilino moiety by a regioselective Buchwald-Hartwig amination reaction from 1,3-dibromo-2,8-dimethoxyxanthone, and late-stage hydroxymethylation at C3 using a Stille cross-coupling. Biological evaluation of deshydroxymethylchalaniline B (1-anilino-2,8-dihydroxyxanthone) revealed MIC values of 8 μg mL-1 (25 μM) against both methicillin resistant S. aureus and B. subtilis.
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Affiliation(s)
- Mahsa Khoshbakht
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331-4003, United States
| | | | - Chenxi Zhu
- Whitney Laboratory for Marine Bioscience, University of Florida, St. Augustine, Florida 32080-8610, United States
| | - Yang Cao
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331-4003, United States
| | - Lev N Zakharov
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331-4003, United States
| | - Sandra Loesgen
- Whitney Laboratory for Marine Bioscience, University of Florida, St. Augustine, Florida 32080-8610, United States
| | - Paul R Blakemore
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331-4003, United States
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72
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Loureiro DRP, Soares JX, Maia A, Silva AMN, Rangel M, Azevedo CMG, Hansen SV, Ulven T, Pinto MMM, Reis S, Afonso CMM. One‐Pot Synthesis of Xanthone by Carbonylative Suzuki Coupling Reaction. ChemistrySelect 2021. [DOI: 10.1002/slct.202101394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Daniela R. P. Loureiro
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira, 228 4050-313 Porto Portugal
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR) Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n 4050-208 Matosinhos Porto Portugal
- LAQV-REQUIMTE Department of Chemical Sciences Laboratory of Applied Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira, 228 4050-313 Porto Portugal
| | - José X. Soares
- LAQV-REQUIMTE Department of Chemical Sciences Laboratory of Applied Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira, 228 4050-313 Porto Portugal
| | - Ana Maia
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira, 228 4050-313 Porto Portugal
| | - André M. N. Silva
- LAQV-REQUIMTE Department of Chemistry and Biochemistry Faculty of Sciences University of Porto Faculty of Sciences University of Porto Campo Alegre Street 4169-007 Porto Portugal
| | - Maria Rangel
- LAQV-REQUIMTE Instituto de Ciências Biomédicas Abel Salazar University of Porto José Viterbo Ferreira Street No. 228 4050-313 Porto Portugal
| | - Carlos M. G. Azevedo
- Department of Physics Chemistry and Pharmacy University of Southern Denmark Campusvej 55 5230 Odense M Denmark
| | - Steffen V. Hansen
- Department of Physics Chemistry and Pharmacy University of Southern Denmark Campusvej 55 5230 Odense M Denmark
| | - Trond Ulven
- Department of Drug Design and Pharmacology University of Copenhagen Universitetsparken 2 2100 Copenhagen Denmark
| | - Madalena M. M. Pinto
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira, 228 4050-313 Porto Portugal
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR) Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n 4050-208 Matosinhos Porto Portugal
| | - Salette Reis
- LAQV-REQUIMTE Department of Chemical Sciences Laboratory of Applied Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira, 228 4050-313 Porto Portugal
| | - Carlos M. M. Afonso
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira, 228 4050-313 Porto Portugal
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR) Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n 4050-208 Matosinhos Porto Portugal
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73
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Navale V, Vamkudoth KR, Ajmera S, Dhuri V. Aspergillus derived mycotoxins in food and the environment: Prevalence, detection, and toxicity. Toxicol Rep 2021; 8:1008-1030. [PMID: 34408970 PMCID: PMC8363598 DOI: 10.1016/j.toxrep.2021.04.013] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 04/20/2021] [Accepted: 04/27/2021] [Indexed: 12/16/2022] Open
Abstract
Aspergillus species are the paramount ubiquitous fungi that contaminate various food substrates and produce biochemicals known as mycotoxins. Aflatoxins (AFTs), ochratoxin A (OTA), patulin (PAT), citrinin (CIT), aflatrem (AT), secalonic acids (SA), cyclopiazonic acid (CPA), terrein (TR), sterigmatocystin (ST) and gliotoxin (GT), and other toxins produced by species of Aspergillus plays a major role in food and human health. Mycotoxins exhibited wide range of toxicity to the humans and animal models even at nanomolar (nM) concentration. Consumption of detrimental mycotoxins adulterated foodstuffs affects human and animal health even trace amounts. Bioaerosols consisting of spores and hyphal fragments are active elicitors of bronchial irritation and allergy, and challenging to the public health. Aspergillus is the furthermost predominant environmental contaminant unswervingly defile lives with a 40-90 % mortality risk in patients with conceded immunity. Genomics, proteomics, transcriptomics, and metabolomics approaches useful for mycotoxins' detection which are expensive. Antibody based detection of toxins chemotypes may result in cross-reactivity and uncertainty. Aptamers (APT) are single stranded DNA (ssDNA/RNA), are specifically binds to the target molecules can be generated by systematic evolution of ligands through exponential enrichment (SELEX). APT are fast, sensitive, simple, in-expensive, and field-deployable rapid point of care (POC) detection of toxins, and a better alternative to antibodies.
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Affiliation(s)
- Vishwambar Navale
- Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, New Delhi, India
| | - Koteswara Rao Vamkudoth
- Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, New Delhi, India
| | | | - Vaibhavi Dhuri
- Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune, 411008, India
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74
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Sadorn K, Saepua S, Boonyuen N, Choowong W, Rachtawee P, Pittayakhajonwut P. Bioactive Dimeric Tetrahydroxanthones with 2,2'- and 4,4'-Axial Linkages from the Entomopathogenic Fungus Aschersonia confluens. JOURNAL OF NATURAL PRODUCTS 2021; 84:1149-1162. [PMID: 33852304 DOI: 10.1021/acs.jnatprod.0c01212] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Thirteen tetrahydroxanthone dimers, atrop-ascherxanthone A (1), ascherxanthones C-G (2-6), and confluxanthones A-G (7-13), were isolated from the entomopathogenic fungus Aschersonia confluens BCC53152. The chemical structures were determined based on analysis of NMR spectroscopic and mass spectrometric data. The absolute configurations of compounds 1 and 7 were confirmed by single-crystal X-ray diffraction experiments, while the configurations of other compounds were assigned based upon evidence from NOESY and NOEDIFF experiments, modified Mosher's method, and ECD spectroscopic data together with biogenetic considerations. Compounds 1, 3-5, 7-11, and 13 showed antimalarial activity against Plasmodium falciparum (K1, multidrug-resistant strain) (IC50 0.6-6.1 μM), antitubercular activity against Mycobacterium tuberculosis H37Ra (MIC 6.3-25.0 μg/mL), and cytotoxicity against NCI-H187 (IC50 0.5-3.5 μM) and Vero (IC50 0.9-6.1 μM) cells. All tested compounds except for compound 9 exhibited cytotoxicity against KB cells (IC50 1.3-9.7 μM).
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Affiliation(s)
- Karoon Sadorn
- Integrated Applied Chemistry Research Unit, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand
- Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand
| | - Siriporn Saepua
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Phaholyothin Road, Khlong Luang, Pathum Thani 12120, Thailand
| | - Nattawut Boonyuen
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Phaholyothin Road, Khlong Luang, Pathum Thani 12120, Thailand
- National Biobank of Thailand (NBT), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Phaholyothin Road, Khlong Luang, Pathum Thani 12120, Thailand
| | - Wilunda Choowong
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Phaholyothin Road, Khlong Luang, Pathum Thani 12120, Thailand
| | - Pranee Rachtawee
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Phaholyothin Road, Khlong Luang, Pathum Thani 12120, Thailand
| | - Pattama Pittayakhajonwut
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Phaholyothin Road, Khlong Luang, Pathum Thani 12120, Thailand
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75
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Silva V, Gil-Martins E, Silva B, Rocha-Pereira C, Sousa ME, Remião F, Silva R. Xanthones as P-glycoprotein modulators and their impact on drug bioavailability. Expert Opin Drug Metab Toxicol 2021; 17:441-482. [PMID: 33283552 DOI: 10.1080/17425255.2021.1861247] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Introduction: P-glycoprotein (P-gp) is an important efflux pump responsible for the extruding of many endogenous and exogenous substances out of the cells. P-gp can be modulated by different molecules - including xanthone derivatives - to surpass the multidrug resistance (MDR) phenomenon through P-gp inhibition, or to serve as an antidotal strategy in intoxication scenarios through P-gp induction/activation.Areas covered: This review provides a perspective on P-gp modulators, with particular focus on xanthonic derivatives, highlighting their ability to modulate P-gp expression and/or activity, and the potential impact of these effects on the pharmacokinetics, pharmacodynamics and toxicity of P-gp substrates.Expert opinion: Xanthones, of natural or synthetic origin, are able to modulate P-gp, interfering with its protein synthesis or with its mechanism of action, by decreasing or increasing its efflux capacity. These modulatory effects make the xanthonic scaffold a promising source of new derivatives with therapeutic potential. However, the mechanisms beyond the xanthones-mediated P-gp modulation and the chemical characteristics that make them more potent P-gp inhibitors or inducers/activators are still understudied. Furthermore, a new window of opportunity exists in the neuropathologies field, where xanthonic derivatives with potential to modulate P-gp should be further explored to optimize the prevention/treatment of brain pathologies.
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Affiliation(s)
- Vera Silva
- UCIBIO-REQUIMTE, Laboratório de Toxicologia, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Eva Gil-Martins
- UCIBIO-REQUIMTE, Laboratório de Toxicologia, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Bárbara Silva
- UCIBIO-REQUIMTE, Laboratório de Toxicologia, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Carolina Rocha-Pereira
- UCIBIO-REQUIMTE, Laboratório de Toxicologia, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Maria Emília Sousa
- CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, Matosinhos, Portugal.,Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Fernando Remião
- UCIBIO-REQUIMTE, Laboratório de Toxicologia, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Renata Silva
- UCIBIO-REQUIMTE, Laboratório de Toxicologia, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
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76
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Nale SD, Maiti D, Lee YR. Construction of Highly Functionalized Xanthones via Rh-Catalyzed Cascade C-H Activation/ O-Annulation. Org Lett 2021; 23:2465-2470. [PMID: 33719464 DOI: 10.1021/acs.orglett.1c00391] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A facile and efficient strategy for obtaining functionalized and multihydroxylated xanthones via Rh catalysis under redox-neutral conditions is developed. Diverse salicylaldehydes bearing heterocycles, aromatics, and fused aromatics can be rapidly coupled with 1,4-benzoquinones or 1,4-hydroquinones to afford valuable xanthones via cascade C-H/O-H functionalization and annulation. This protocol provides a rapid synthetic approach to obtain biologically active materials through late-stage functionalization and prepares natural products such as subelliptenone, pruniflorone N, and ravenelin.
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Affiliation(s)
- Sagar D Nale
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Debabrata Maiti
- Department of Chemistry, IIT Bombay, Powai, Mumbai 400076, India
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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77
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Marine Natural Products: Promising Candidates in the Modulation of Gut-Brain Axis towards Neuroprotection. Mar Drugs 2021; 19:md19030165. [PMID: 33808737 PMCID: PMC8003567 DOI: 10.3390/md19030165] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 12/14/2022] Open
Abstract
In recent decades, several neuroprotective agents have been provided in combating neuronal dysfunctions; however, no effective treatment has been found towards the complete eradication of neurodegenerative diseases. From the pathophysiological point of view, growing studies are indicating a bidirectional relationship between gut and brain termed gut-brain axis in the context of health/disease. Revealing the gut-brain axis has survived new hopes in the prevention, management, and treatment of neurodegenerative diseases. Accordingly, introducing novel alternative therapies in regulating the gut-brain axis seems to be an emerging concept to pave the road in fighting neurodegenerative diseases. Growing studies have developed marine-derived natural products as hopeful candidates in a simultaneous targeting of gut-brain dysregulated mediators towards neuroprotection. Of marine natural products, carotenoids (e.g., fucoxanthin, and astaxanthin), phytosterols (e.g., fucosterol), polysaccharides (e.g., fucoidan, chitosan, alginate, and laminarin), macrolactins (e.g., macrolactin A), diterpenes (e.g., lobocrasol, excavatolide B, and crassumol E) and sesquiterpenes (e.g., zonarol) have shown to be promising candidates in modulating gut-brain axis. The aforementioned marine natural products are potential regulators of inflammatory, apoptotic, and oxidative stress mediators towards a bidirectional regulation of the gut-brain axis. The present study aims at describing the gut-brain axis, the importance of gut microbiota in neurological diseases, as well as the modulatory role of marine natural products towards neuroprotection.
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78
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Chen K, Xie T, Shen Y, He H, Zhao X, Gao S. Calixanthomycin A: Asymmetric Total Synthesis and Structural Determination. Org Lett 2021; 23:1769-1774. [DOI: 10.1021/acs.orglett.1c00193] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Kuanwei Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Tao Xie
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Yanfang Shen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Haibing He
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Xiaoli Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Shuanhu Gao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
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79
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She W, Ye W, Cheng A, Liu X, Tang J, Lan Y, Chen F, Qian PY. Discovery, Bioactivity Evaluation, Biosynthetic Gene Cluster Identification, and Heterologous Expression of Novel Albofungin Derivatives. Front Microbiol 2021; 12:635268. [PMID: 33633715 PMCID: PMC7902042 DOI: 10.3389/fmicb.2021.635268] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/08/2021] [Indexed: 01/07/2023] Open
Abstract
The crude extract of Streptomyces chrestomyceticus exhibited strong and broad activities against most “ESKAPE pathogens.” We conducted a comprehensive chemical investigation for secondary metabolites from the S. chrestomyceticus strain and identified two novel albofungin (alb) derivatives, i.e., albofungins A (1) and B (2), along with two known compounds, i.e., albofungin (3) and chloroalbofungin (4). The chemical structures of the novel compounds were elucidated using HRMS, 1D and 2D NMR, and electronic circular dichroism spectroscopy. The draft genome of S. chrestomyceticus was sequenced, and a 72 kb albofungin (alb) gene cluster with 72 open reading frames encoding type II polyketide synthases (PKSs), regulators, and transporters, and tailoring enzymes were identified using bioinformatics analysis. The alb gene cluster was confirmed using the heterologous expression in Streptomyces coelicolor, which successfully produced the compounds 3 and 4. Furthermore, compounds 1–4 displayed remarkable activities against Gram-positive bacteria and antitumor activities toward various cancer cells. Notably, compounds 1 and 3 showed potent activities against Gram-negative pathogenic bacteria. The terminal deoxynucleotidyl transferase (dUTP) nick-end labeling and flow cytometry analysis verified that compound 1 inhibited cancer cell proliferation by inducing cellular apoptosis. These results indicated that albofungins might be potential candidates for the development of antibiotics and antitumor drugs.
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Affiliation(s)
- Weiyi She
- SZU-HKUST Joint Ph.D. Program in Marine Environmental Science, Shenzhen University, Shenzhen, China.,Hong Kong Branch of the Southern Marine Science and Engineering Guangdong, Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China.,Division of Ocean Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Wenkang Ye
- SZU-HKUST Joint Ph.D. Program in Marine Environmental Science, Shenzhen University, Shenzhen, China.,Hong Kong Branch of the Southern Marine Science and Engineering Guangdong, Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China.,Division of Ocean Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Aifang Cheng
- Hong Kong Branch of the Southern Marine Science and Engineering Guangdong, Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China.,Division of Ocean Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Xin Liu
- Hong Kong Branch of the Southern Marine Science and Engineering Guangdong, Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China.,Division of Ocean Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Jianwei Tang
- Hong Kong Branch of the Southern Marine Science and Engineering Guangdong, Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China.,Division of Ocean Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Yi Lan
- Hong Kong Branch of the Southern Marine Science and Engineering Guangdong, Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China.,Division of Ocean Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Feng Chen
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
| | - Pei-Yuan Qian
- Hong Kong Branch of the Southern Marine Science and Engineering Guangdong, Laboratory (Guangzhou), Hong Kong University of Science and Technology, Hong Kong, China.,Division of Ocean Science, Hong Kong University of Science and Technology, Hong Kong, China
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80
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From Natural Products to New Synthetic Small Molecules: A Journey through the World of Xanthones. Molecules 2021; 26:molecules26020431. [PMID: 33467544 PMCID: PMC7829950 DOI: 10.3390/molecules26020431] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/07/2021] [Accepted: 01/11/2021] [Indexed: 12/11/2022] Open
Abstract
This work reviews the contributions of the corresponding author (M.M.M.P.) and her research group to Medicinal Chemistry concerning the isolation from plant and marine sources of xanthone derivatives as well as their synthesis, biological/pharmacological activities, formulation and analytical applications. Although her group activity has been spread over several chemical families with relevance in Medicinal Chemistry, the main focus of the investigation and research has been in the xanthone family. Xanthone derivatives have a variety of activities with great potential for therapeutic applications due to their versatile framework. The group has contributed with several libraries of xanthones derivatives, with a variety of activities such as antitumor, anticoagulant, antiplatelet, anti-inflammatory, antimalarial, antimicrobial, hepatoprotective, antioxidant, and multidrug resistance reversal effects. Besides therapeutic applications, our group has also developed xanthone derivatives with analytical applications as chiral selectors for liquid chromatography and for maritime application as antifouling agents for marine paints. Chemically, it has been challenging to afford green chemistry methods and achieve enantiomeric purity of chiral derivatives. In this review, the structures of the most significant compounds will be presented.
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81
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Wu H, Liu S, Wang Y, Yuan M, Zhang H, Zhou H, Xiao L, Zheng C, Xu H. An efficient approach for the synthesis of 1,2-dihydroxanthones enabled by one-pot Claisen condensation/cyclization reactions. Org Biomol Chem 2021; 19:4126-4131. [PMID: 33870388 DOI: 10.1039/d1ob00470k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A mild, efficient method for the synthesis of 1,2-dihydroxanthones by a one-pot reaction was developed under waste-induced relay catalysis.
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Affiliation(s)
- Huaimo Wu
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Song Liu
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Youyi Wang
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Man Yuan
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Hong Zhang
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Hua Zhou
- Shuguang Hospital
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Lianbo Xiao
- Institute of Arthritis Research
- Shanghai Academy of Chinese Medical Sciences
- Guanghua Integrative Medicine Hospital
- Shanghai 200052
- China
| | - Changwu Zheng
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
- Key Laboratory of Synthetic Chemistry of Natural Substances
| | - Hongxi Xu
- Shuguang Hospital
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
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82
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Zhang L, Mou NJ, Xiao DR, Zhuang X, Lin XL, Cai T, Luo QL. Regioselective synthesis of fused oxa-heterocycles via iodine-mediated annulation of cyclic 1,3-dicarbonyl compounds with propargylic alcohols. Org Chem Front 2021. [DOI: 10.1039/d0qo01496f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The synthesis of structurally diverse fused oxa-heterocycles is established through the iodine-mediated cascade annulation of cyclic 1,3-dicarbonyl compounds with propargylic alcohols.
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Affiliation(s)
- Liang Zhang
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Neng-Jie Mou
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Dong-Rong Xiao
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Xin Zhuang
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Xiao-Long Lin
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Tian Cai
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
- Key Laboratory of Applied Chemistry of Chongqing Municipality
| | - Qun-Li Luo
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
- Key Laboratory of Applied Chemistry of Chongqing Municipality
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83
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Zhang X, Guo J, Cheng F, Li S. Cytochrome P450 enzymes in fungal natural product biosynthesis. Nat Prod Rep 2021; 38:1072-1099. [PMID: 33710221 DOI: 10.1039/d1np00004g] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Covering: 2015 to the end of 2020 Fungal-derived polyketides, non-ribosomal peptides, terpenoids and their hybrids contribute significantly to the chemical space of total natural products. Cytochrome P450 enzymes play essential roles in fungal natural product biosynthesis with their broad substrate scope, great catalytic versatility and high frequency of involvement. Due to the membrane-bound nature, the functional and mechanistic understandings for fungal P450s have been limited for quite a long time. However, recent technical advances, such as the efficient and precise genome editing techniques and the development of several filamentous fungal strains as heterologous P450 expression hosts, have led to remarkable achievements in fungal P450 studies. Here, we provide a comprehensive review to cover the most recent progresses from 2015 to 2020 on catalytic functions and mechanisms, research methodologies and remaining challenges in the fast-growing field of fungal natural product biosynthetic P450s.
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Affiliation(s)
- Xingwang Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China. and Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong 266237, China
| | - Jiawei Guo
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China.
| | - Fangyuan Cheng
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China.
| | - Shengying Li
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China. and Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong 266237, China
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84
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Zhang M, Gong Y, Zhou W, Zhou Y, Liu XL. Recent advances of chromone-based reactants in the catalytic asymmetric domino annulation reaction. Org Chem Front 2021. [DOI: 10.1039/d1qo00269d] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chiral polycyclic chromanones are important heterocyclic frameworks that constitute the core structures of many natural products and bioactive molecules.
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Affiliation(s)
- Min Zhang
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
| | - Yi Gong
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
| | - Wei Zhou
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
| | - Ying Zhou
- College of Pharmaceutical Sciences
- Guizhou University of Chinese Medicine
- Guiyang
- P. R. China
| | - Xiong-Li Liu
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
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85
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Zhang XL, Feng KX, Hu JL, Shen QY, Huang WS, Xia AB, Li C, Xu DQ. One-pot asymmetric synthesis of a hexahydrophenanthridine scaffold containing five stereocenters via an organocatalytic quadruple-cascade reaction. NEW J CHEM 2021. [DOI: 10.1039/d0nj03946b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An organocatalytic enantioselective aza-Michael-Michael-Michael/aldol cyclization quadruple-cascade reaction of 2-amino-β-nitrostyrenes and α,β-unsaturated aldehydes has been developed for the construction of fully substituted hexahydrophenanthridine.
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Affiliation(s)
- Xiao-Long Zhang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Kai-Xiang Feng
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Jian-Liang Hu
- Hangzhou Grascent Co., Ltd
- Meicheng Town 311604
- P. R. China
| | - Qiao-Yu Shen
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | | | - Ai-Bao Xia
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Chen Li
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Dan-Qian Xu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
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86
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Kumamoto T, Hasegawa S, Adachi K, Katakawa K. Total Synthesis of (±)-4-Deoxyblennolide C via Spirochromanone. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)60] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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87
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França F, Silva PMA, Soares JX, Henriques AC, Loureiro DRP, Azevedo CMG, Afonso CMM, Bousbaa H. A Pyranoxanthone as a Potent Antimitotic and Sensitizer of Cancer Cells to Low Doses of Paclitaxel. Molecules 2020; 25:E5845. [PMID: 33322077 PMCID: PMC7764177 DOI: 10.3390/molecules25245845] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/04/2020] [Accepted: 12/08/2020] [Indexed: 02/06/2023] Open
Abstract
Microtubule-targeting agents (MTAs) remain a gold standard for the treatment of several cancer types. By interfering with microtubules dynamic, MTAs induce a mitotic arrest followed by cell death. This antimitotic activity of MTAs is dependent on the spindle assembly checkpoint (SAC), which monitors the integrity of the mitotic spindle and proper chromosome attachments to microtubules in order to ensure accurate chromosome segregation and timely anaphase onset. However, the cytotoxic activity of MTAs is restrained by drug resistance and/or toxicities, and had motivated the search for new compounds and/or alternative therapeutic strategies. Here, we describe the synthesis and mechanism of action of the xanthone derivative pyranoxanthone 2 that exhibits a potent anti-growth activity against cancer cells. We found that cancer cells treated with the pyranoxanthone 2 exhibited persistent defects in chromosome congression during mitosis that were not corrected over time, which induced a prolonged SAC-dependent mitotic arrest followed by massive apoptosis. Importantly, pyranoxanthone 2 was able to potentiate apoptosis of cancer cells treated with nanomolar concentrations of paclitaxel. Our data identified the potential of the pyranoxanthone 2 as a new potent antimitotic with promising antitumor potential, either alone or in combination regimens.
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Affiliation(s)
- Fábio França
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), University Institute of Health Sciences (IUCS), Rua Central de Gandra, 1317, 4585-322 Gandra, Portugal; (F.F.); (P.M.A.S.); (A.C.H.)
- Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal
| | - Patrícia M. A. Silva
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), University Institute of Health Sciences (IUCS), Rua Central de Gandra, 1317, 4585-322 Gandra, Portugal; (F.F.); (P.M.A.S.); (A.C.H.)
| | - José X. Soares
- LAQV-REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
| | - Ana C. Henriques
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), University Institute of Health Sciences (IUCS), Rua Central de Gandra, 1317, 4585-322 Gandra, Portugal; (F.F.); (P.M.A.S.); (A.C.H.)
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
| | - Daniela R. P. Loureiro
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
- Department of Chemical Sciences, Laboratory of Organic and Pharmaceutical Chemistry, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal;
| | - Carlos M. G. Azevedo
- Department of Chemical Sciences, Laboratory of Organic and Pharmaceutical Chemistry, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal;
| | - Carlos M. M. Afonso
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
- Department of Chemical Sciences, Laboratory of Organic and Pharmaceutical Chemistry, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal;
| | - Hassan Bousbaa
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), University Institute of Health Sciences (IUCS), Rua Central de Gandra, 1317, 4585-322 Gandra, Portugal; (F.F.); (P.M.A.S.); (A.C.H.)
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
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88
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Mohamed GA, Ibrahim SRM, Alhakamy NA, Aljohani OS. Fusaroxazin, a novel cytotoxic and antimicrobial xanthone derivative from Fusarium oxysporum. Nat Prod Res 2020; 36:952-960. [DOI: 10.1080/14786419.2020.1855165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Gamal Abdallah Mohamed
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | | | | | - Omar Saad Aljohani
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
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89
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Lünne F, Niehaus EM, Lipinski S, Kunigkeit J, Kalinina SA, Humpf HU. Identification of the polyketide synthase PKS7 responsible for the production of lecanoric acid and ethyl lecanorate in Claviceps purpurea. Fungal Genet Biol 2020; 145:103481. [DOI: 10.1016/j.fgb.2020.103481] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 10/14/2020] [Accepted: 10/23/2020] [Indexed: 12/25/2022]
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90
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Vitale GA, Coppola D, Palma Esposito F, Buonocore C, Ausuri J, Tortorella E, de Pascale D. Antioxidant Molecules from Marine Fungi: Methodologies and Perspectives. Antioxidants (Basel) 2020; 9:E1183. [PMID: 33256101 PMCID: PMC7760651 DOI: 10.3390/antiox9121183] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/20/2020] [Accepted: 11/24/2020] [Indexed: 12/31/2022] Open
Abstract
The marine environment represents a prosperous existing resource for bioprospecting, covering 70% of the planet earth, and hosting a huge biodiversity. Advances in the research are progressively uncovering the presence of unknown microorganisms, which have evolved unique metabolic and genetic pathways for the production of uncommon secondary metabolites. Fungi have a leading role in marine bioprospecting since they represent a prolific source of structurally diverse bioactive metabolites. Several bioactive compounds from marine fungi have already been characterized including antibiotics, anticancer, antioxidants and antivirals. Nowadays, the search for natural antioxidant molecules capable of replacing those synthetic currently used, is an aspect that is receiving significant attention. Antioxidants can inactivate reactive oxygen and nitrogen species, preventing the insurgence of several degenerative diseases including cancer, autoimmune disorders, cardiovascular and neurodegenerative diseases. Moreover, they also find applications in different fields, including food preservation, healthcare and cosmetics. This review focuses on the production of antioxidants from marine fungi. We begin by proposing a survey of the available tools suitable for the evaluation of antioxidants, followed by the description of various classes of marine fungi antioxidants together with their extraction strategies. In addition, a view of the future perspectives and trends of these natural products within the "blue economy" is also presented.
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Affiliation(s)
- Giovanni Andrea Vitale
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
| | - Daniela Coppola
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (D.C.); (F.P.E.)
- Institute of Biosciences and BioResources (IBBR), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy
| | - Fortunato Palma Esposito
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (D.C.); (F.P.E.)
| | - Carmine Buonocore
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
| | - Janardhan Ausuri
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
| | - Emiliana Tortorella
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
| | - Donatella de Pascale
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (D.C.); (F.P.E.)
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91
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Li SJ, Jiao FW, Li W, Zhang X, Yan W, Jiao RH. Cytotoxic Xanthone Derivatives from the Mangrove-Derived Endophytic Fungus Peniophora incarnata Z4. JOURNAL OF NATURAL PRODUCTS 2020; 83:2976-2982. [PMID: 32975117 DOI: 10.1021/acs.jnatprod.0c00523] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The mangrove-derived endophytic fungus Peniophora incarnata Z4 produced seven new xanthone derivatives, including four new tetrahydroxanthones (1-4), one new chromone (5), one new xanthone (6), and one new xanthone dimer (7), together with one known compound, globosuxanthone B (8). Their structures were determined by an extensive analysis of 1D and 2D NMR, HRESIMS, ECD, and single-crystal X-ray diffraction data. In cytotoxic activity assays, compound 2 showed cytotoxicity against three carcinoma cell lines with IC50 values less than 10 μM.
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Affiliation(s)
- Sui Jun Li
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Fang Wen Jiao
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Wei Li
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Xuan Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Wei Yan
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Rui Hua Jiao
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Functional Biomolecules, School of Life Sciences, Nanjing University, Nanjing 210023, China
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92
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Gan Q, Lin C, Lu C, Chang Y, Che Q, Zhang G, Zhu T, Gu Q, Wu Z, Li M, Li D. Staprexanthones, Xanthone-Type Stimulators of Pancreatic β-Cell Proliferation from a Mangrove Endophytic Fungus. JOURNAL OF NATURAL PRODUCTS 2020; 83:2996-3003. [PMID: 32966070 DOI: 10.1021/acs.jnatprod.0c00535] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This project was focused on the discovery of novel compounds that promote endogenous β-cell regeneration. Screening of extracts identified the fungus Stachybotrys chartarum as a promising candidate. After fermentation and extraction of S. chartarum, we isolated five new prenylated xanthones, namely, staprexanthones A-E (1-5), with staprexanthone A (1) being the first natural xanthone bearing a rare 4,5-dimethyl-1,3-dioxolane moiety. Compounds 1, 2, and 5 significantly increased β-cell numbers in vivo in a zebrafish model. Further analysis revealed that 2 and 5 promoted β-cell mass expansion by increasing proliferation of existing β-cells though promotion of cell-cycle progression at the G1/S transition. These findings indicate that prenylated xanthones are potential new drug leads for antidiabetes therapy by stimulating β-cell regeneration.
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Affiliation(s)
- Qi Gan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Chunyu Lin
- School of Pharmaceutical Science, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen University, Fujian 361102, People's Republic of China
- School of Marine Life Science, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Changjun Lu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Yimin Chang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Qian Che
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Guojian Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, People's Republic of China
| | - Tianjiao Zhu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, People's Republic of China
| | - Qianqun Gu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Zhiqiang Wu
- School of Marine Life Science, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Mingyu Li
- School of Pharmaceutical Science, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen University, Fujian 361102, People's Republic of China
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, People's Republic of China
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93
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Yao Z, Liu X, Li Z, Xu S, Xu L, Liu X. Dienolate‐Mediated, Regioselective C2‐Polarity Reversal of Chromone‐Based Reactants and Their Application in Nucleophilic Strategies. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000942] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhen Yao
- Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Xiong‐Wei Liu
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine Guizhou University Guiyang 550025 People's Republic of China
| | - Zheng Li
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine Guizhou University Guiyang 550025 People's Republic of China
| | - Sheng‐Wen Xu
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine Guizhou University Guiyang 550025 People's Republic of China
| | - Lijin Xu
- Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Xiong‐Li Liu
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine Guizhou University Guiyang 550025 People's Republic of China
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94
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Zhao DL, Han XB, Wang M, Zeng YT, Li YQ, Ma GY, Liu J, Zheng CJ, Wen MX, Zhang ZF, Zhang P, Zhang CS. Herbicidal and Antifungal Xanthone Derivatives from the Alga-Derived Fungus Aspergillus versicolor D5. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:11207-11214. [PMID: 32915561 DOI: 10.1021/acs.jafc.0c04265] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Fungi have been proved as promising and prolific sources of functional secondary metabolites with potent agricultural applications. In this study, 14 xanthone derivatives (1-14), including six new ones, versicones I-N (1-4, 7, 11), and a biogenetically related derivative (15), were isolated from the alga-derived fungus Aspergillus versicolor D5. Their structures were elucidated by comprehensive spectroscopic methods. Versicone L (4) exhibited a broad antifungal spectrum and prominent inhibitory effects on Botrytis cinerea at a minimum inhibitory concentration (MIC) of 152 μM, 7-fold stronger than that of the positive control, carbendazim (MIC = 1.05 × 103 μM). Dihydrosterigmatocystin (13) showed strong antifungal activity toward B. cinerea at MIC = 38.3 μM, almost 30-fold stronger than that of carbendazim. Meanwhile, 13 exhibited potent herbicidal activity toward Amaranthus retroflexus L. with an MIC of 24.5 μM, approximately 4-fold stronger than that of the positive control, glyphosate (MIC = 94.7 μM). Additionally, 13 also displayed remarkable activity against other weeds belonging to Amaranth sp. Analysis of the structure-herbicidal activity relationship indicated that the bifuranic ring played an important role in xanthone phytotoxicity and the presence of a double bond in the furan ring could decrease phytotoxicity. This study indicated that xanthones can be served as promising candidates for lead compounds of agrochemicals.
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Affiliation(s)
- Dong-Lin Zhao
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, People's Republic of China
| | - Xiao-Bin Han
- Zunyi Branch, Guizhou Tobacco Company, Zunyi 563000, People's Republic of China
| | - Mei Wang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, People's Republic of China
| | - Yun-Tao Zeng
- Zunyi Branch, Guizhou Tobacco Company, Zunyi 563000, People's Republic of China
| | - Yi-Qiang Li
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, People's Republic of China
| | - Guo-Yong Ma
- Zunyi Branch, Guizhou Tobacco Company, Zunyi 563000, People's Republic of China
| | - Jing Liu
- Zunyi Branch, Guizhou Tobacco Company, Zunyi 563000, People's Republic of China
| | - Cai-Juan Zheng
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, People's Republic of China
| | - Ming-Xia Wen
- Zunyi Branch, Guizhou Tobacco Company, Zunyi 563000, People's Republic of China
| | - Zhi-Fan Zhang
- Zunyi Branch, Guizhou Tobacco Company, Zunyi 563000, People's Republic of China
| | - Peng Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, People's Republic of China
| | - Cheng-Sheng Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, People's Republic of China
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95
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Carraro ML, Marques S, Silva AS, Freitas B, Silva PMA, Pedrosa J, De Marco P, Bousbaa H, Fernandes C, Tiritan ME, Silva AMS, Pinto MMM. Synthesis of New Chiral Derivatives of Xanthones with Enantioselective Effect on Tumor Cell Growth and DNA Crosslinking. ChemistrySelect 2020. [DOI: 10.1002/slct.202002588] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Maria L. Carraro
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira 228 4050-313 Porto Portugal
| | - Sandra Marques
- CESPU Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS) Rua Central de Gandra, 1317 4585-116 Gandra PRD Portugal
| | - Ana Sofia Silva
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira 228 4050-313 Porto Portugal
| | - Bruno Freitas
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira 228 4050-313 Porto Portugal
| | - Patrícia M. A. Silva
- CESPU Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS) Rua Central de Gandra, 1317 4585-116 Gandra PRD Portugal
| | - Joel Pedrosa
- CESPU Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS) Rua Central de Gandra, 1317 4585-116 Gandra PRD Portugal
| | - Paolo De Marco
- CESPU Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS) Rua Central de Gandra, 1317 4585-116 Gandra PRD Portugal
| | - Hassan Bousbaa
- CESPU Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS) Rua Central de Gandra, 1317 4585-116 Gandra PRD Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR) Edifício do Terminal de Cruzeiros do Porto de Leixões Av. General Norton de Matos s/n 4050-208 Matosinhos Portugal
| | - Carla Fernandes
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira 228 4050-313 Porto Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR) Edifício do Terminal de Cruzeiros do Porto de Leixões Av. General Norton de Matos s/n 4050-208 Matosinhos Portugal
| | - Maria Elizabeth Tiritan
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira 228 4050-313 Porto Portugal
- CESPU Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS) Rua Central de Gandra, 1317 4585-116 Gandra PRD Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR) Edifício do Terminal de Cruzeiros do Porto de Leixões Av. General Norton de Matos s/n 4050-208 Matosinhos Portugal
| | - Artur M. S. Silva
- QOPNA & LAQV-REQUIMTE Departamento de Química Universidade de Aveiro Aveiro 3810-103 Aveiro Portugal
| | - Madalena M. M. Pinto
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira 228 4050-313 Porto Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR) Edifício do Terminal de Cruzeiros do Porto de Leixões Av. General Norton de Matos s/n 4050-208 Matosinhos Portugal
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96
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Jiang L, Xiang J, Zhu S, Tang D, Gong B, Pu H, Duan Y, Huang Y. Undescribed benzophenone and xanthones from cave-derived Streptomyces sp. CB09001. Nat Prod Res 2020; 36:1725-1733. [DOI: 10.1080/14786419.2020.1813134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Lin Jiang
- Xiangya International Academy of Translational Medicine at Central South University, Changsha, Hunan, China
| | - Jingxi Xiang
- Xiangya International Academy of Translational Medicine at Central South University, Changsha, Hunan, China
| | - Saibin Zhu
- Xiangya International Academy of Translational Medicine at Central South University, Changsha, Hunan, China
| | - Danfeng Tang
- Xiangya International Academy of Translational Medicine at Central South University, Changsha, Hunan, China
| | - Bang Gong
- Xiangya International Academy of Translational Medicine at Central South University, Changsha, Hunan, China
| | - Hong Pu
- Xiangya International Academy of Translational Medicine at Central South University, Changsha, Hunan, China
| | - Yanwen Duan
- Xiangya International Academy of Translational Medicine at Central South University, Changsha, Hunan, China
- Hunan Engineering Research Center of Combinatorial Biosynthesis and Natural Product Drug Discovery, Changsha, Hunan, China
- National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery, Changsha, Hunan, China
| | - Yong Huang
- Xiangya International Academy of Translational Medicine at Central South University, Changsha, Hunan, China
- National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery, Changsha, Hunan, China
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97
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Wang CN, Lu HM, Gao CH, Guo L, Zhan ZY, Wang JJ, Liu YH, Xiang ST, Wang J, Luo XW. Cytotoxic benzopyranone and xanthone derivatives from a coral symbiotic fungus Cladosporium halotolerans GXIMD 02502. Nat Prod Res 2020; 35:5596-5603. [PMID: 32713199 DOI: 10.1080/14786419.2020.1799363] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Coral-derived microorganisms have been historically proven to be prolific sources of bioactive secondary metabolites. Twelve benzopyranone and/or xanthone derivatives, including a new benzopyranone with an uncommon carboxyl group at C-8, coniochaetone K (1), were obtained from the Beibu Gulf-derived coral symbiotic fungus Cladosporium halotolerans GXIMD 02502. Their structures were determined by extensive spectroscopic data interpretation and comparison with literature values. The absolute configuration of 1 was accomplished by comparison of specific optical rotation as well as quantum chemical ECD calculations. The in vitro cytotoxicity of compounds 1-12 against two human prostatic cancer cell lines, C4-2B and 22RV1, were evaluated. And compounds 1, 3, 6-8, and 10-11 demonstrated significant cytotoxicity with inhibitions ranging from 55.8% to 82.1% at the concentration of 10 μM.
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Affiliation(s)
- Chao-Nan Wang
- Changchun University of Chinese Medicine, Changchun, P.R. China
| | - Hu-Mu Lu
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning, P.R. China
| | - Cheng-Hai Gao
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning, P.R. China
| | - Lang Guo
- Department of Urology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
| | - Zhen-Yu Zhan
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning, P.R. China
| | - Jun-Jian Wang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, P.R. China
| | - Yong-Hong Liu
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning, P.R. China
| | - Song-Tao Xiang
- Department of Urology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
| | - Jian Wang
- Changchun University of Chinese Medicine, Changchun, P.R. China
| | - Xiao-Wei Luo
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning, P.R. China
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98
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Khaw KY, Kumar P, Yusof SR, Ramanathan S, Murugaiyah V. Probing simple structural modification of α-mangostin on its cholinesterase inhibition and cytotoxicity. Arch Pharm (Weinheim) 2020; 353:e2000156. [PMID: 32716578 DOI: 10.1002/ardp.202000156] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/22/2020] [Accepted: 07/11/2020] [Indexed: 11/08/2022]
Abstract
α-Mangostin has been reported to possess a broad range of pharmacological effects including potent cholinesterase inhibition, but the development of α-mangostin as a potential lead compound is impeded by its toxicity. The present study investigated the impact of simple structural modification of α-mangostin on its cholinesterase inhibitory activities and toxicity toward neuroblastoma and liver cancer cells. The dialkylated derivatives retained good acetylcholinesterase (AChE) inhibitory activities with IC50 values between 4.15 and 6.73 µM, but not butyrylcholinesterase (BChE) inhibitory activities, compared with α-mangostin, a dual inhibitor (IC50 : AChE, 2.48 µM; BChE, 5.87 µM). Dialkylation of α-mangostin produced AChE selective inhibitors that formed hydrophobic interactions at the active site of AChE. Interestingly, all four dialkylated derivatives of α-mangostin showed much lower cytotoxicity, being 6.4- to 9.0-fold and 3.8- to 5.5-fold less toxic than their parent compound on neuroblastoma and liver cancer cells, respectively. Likewise, their selectivity index was higher by 1.9- to 4.4-fold; in particular, A2 and A4 showed improved selectivity index compared with α-mangostin. Taken together, modification of the hydroxyl groups of α-mangostin at positions C-3 and C-6 greatly influenced its BChE inhibitory and cytotoxic but not its AChE inhibitory activities. These dialkylated derivatives are viable candidates for further structural modification and refinement, worthy in the search of new AChE inhibitors with higher safety margins.
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Affiliation(s)
- Kooi-Yeong Khaw
- Discipline of Pharmacology, School of Pharmaceutical Sciences, Penang, Malaysia.,School of Pharmacy, Monash University Malaysia, Bandar Sunway, Selangor Darul Ehsan, Malaysia
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Affiliation(s)
- Marc Paul Beller
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, D-35032 Marburg, Germany
| | - Klaus Harms
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, D-35032 Marburg, Germany
| | - Ulrich Koert
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, D-35032 Marburg, Germany
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Hu X, Sun W, Li S, Li L, Yu L, Liu H, You X, Jiang B, Wu L. Cervinomycins C 1-4 with cytotoxic and antibacterial activity from Streptomyces sp. CPCC 204980. J Antibiot (Tokyo) 2020; 73:812-817. [PMID: 32616897 DOI: 10.1038/s41429-020-0342-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/04/2020] [Accepted: 06/13/2020] [Indexed: 12/14/2022]
Abstract
Polycyclic xanthones are secondary metabolites from actinomycetes and cervinomycin A and B are bioactive 26-membered polycyclic xanthones from Streptomyces sp. CPCC 204980. Herein, we report cervinomycins C1-4 (1-4) from the same strain. The structures of 1-4 were determined by 1D- and 2D-NMR, or single-crystal X-ray diffraction. Compounds 1-4 feature the open or loss of A (oxazolidine) ring in their angular polycyclic framework compared with cervinomycin B. Compounds 1-4 showed potent cytotoxicity against human cancer cell lines HCT116 and BxPC-3, with IC50 at 0.9-801.0 nM and strong anti-Gram-positive bacterial activity.
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Affiliation(s)
- Xiaowen Hu
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Wei Sun
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Shufen Li
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - LinLi Li
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Liyan Yu
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Hongyu Liu
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Xuefu You
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Bingya Jiang
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
| | - Linzhuan Wu
- NHC Key Laboratory of Biotechnology of Antibiotics, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
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