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Wang A, Li S, Wei Y, Wang G, Shi W, Shang Y, Yu L, Chen S, Li Y, Gan M. Quinomycins with an unusual N-methyl-3-methylsulfinyl-alanine residue from a Streptomyces sp. J Antibiot (Tokyo) 2024; 77:506-514. [PMID: 38745102 DOI: 10.1038/s41429-024-00736-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/10/2024] [Accepted: 04/17/2024] [Indexed: 05/16/2024]
Abstract
Four new echinomycin congeners, quinomycins M-P (1-4) were isolated from the cultures of the soil-derived Streptomyces sp. CPCC205575. The planar structures were determined by comprehensive analyses of NMR and HRESIMS/MS data. The absolute configurations were elucidated by the advanced Marfey's method combined with biosynthetic gene analysis. Compounds 1-4 represent the first examples of quinomycin-type natural products with the sulfur atom at the N,S-dimethylcysteine residue oxidized as a sulfoxide group forming the unusual N-methyl-3-methylsulfinyl-alanine residue. Bioassay results revealed that the oxidation of the sulfur atom at the Cys or Cys' residues led to dramatic decrease of cytotoxicity and antimicrobial activity.
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Affiliation(s)
- Anqi Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, PR China
| | - Shasha Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, PR China
| | - Yuanjuan Wei
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, PR China
| | - Guiyang Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, PR China
| | - Wenjing Shi
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, PR China
| | - Yue Shang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, PR China
| | - Liyan Yu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, PR China
| | - Shuzhen Chen
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, PR China.
| | - Yan Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, PR China.
| | - Maoluo Gan
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, PR China.
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2
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Chen C, Chen X, Ren B, Guo H, Abdel-Mageed WM, Liu X, Song F, Zhang L. Characterization of Streptomyces sp. LS462 with high productivity of echinomycin, a potent antituberculosis and synergistic antifungal antibiotic. J Ind Microbiol Biotechnol 2021; 48:kuab079. [PMID: 34661655 PMCID: PMC8788810 DOI: 10.1093/jimb/kuab079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 10/12/2021] [Indexed: 02/05/2023]
Abstract
A biologically active microbial strain, designated as "LS462," was isolated from a soil sample collected from Yaoli Virgin Forest of Jiangxi Province, China. The strain was able to produce a high yield of echinomycin (172 mg/l) even under nonoptimized culture conditions and is proposed to serve as a promising source of echinomycin. In this study, echinomycin exhibited strong anti-Mycobacterium tuberculosis H37Rv activity and synergistic antifungal effect with a greatly reduced dosage of posaconazole on Candida albicans SC5314. The strain belongs to the genus Streptomyces according to its morphological and 16S rDNA phylogenetic analysis. The 16S rDNA was found to have the highest sequence identity with Streptomyces fuscichromogenes (99.37% similarity). Extensive nuclear magnetic resonance and mass spectroscopic data were used to determine the structure of echinomycin. The strain S. fuscichromogenes has not been previously reported to produce echinomycin. Strain LS462 may be exploited as a new potential source for the commercial production of echinomycin. Also, this work is the first to report the new synergistic antifungal activity of echinomycin and further study of the synergistic mechanism will be helpful to guide the development of antifungal agents.
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Affiliation(s)
- Caixia Chen
- Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China
- School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Xiangyin Chen
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Biao Ren
- Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China
- West China Hospital of Stomatology, Sichuan University, Sichuan 610041, P. R. China
| | - Hui Guo
- Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China
- Institute of Biophysics, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Wael M Abdel-Mageed
- Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Xueting Liu
- Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Fuhang Song
- Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, P. R. China
| | - Lixin Zhang
- Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, P. R. China
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3
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Guerrero-Garzón JF, Zehl M, Schneider O, Rückert C, Busche T, Kalinowski J, Bredholt H, Zotchev SB. Streptomyces spp. From the Marine Sponge Antho dichotoma: Analyses of Secondary Metabolite Biosynthesis Gene Clusters and Some of Their Products. Front Microbiol 2020; 11:437. [PMID: 32256483 PMCID: PMC7093587 DOI: 10.3389/fmicb.2020.00437] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 03/02/2020] [Indexed: 01/25/2023] Open
Abstract
Actinomycete bacteria from marine environments represent a potential source for new antibiotics and anti-tumor drugs. Ten strains belonging to the genus Streptomyces isolated from the marine sponge Antho dichotoma collected at the bottom of the Trondheim fjord (Norway) were screened for antibiotic activity. Since only few isolates proved to be bioactive in the conditions tested, we decided to gain an insight into their biosynthetic potential using genome sequencing and analysis. Draft genomes were analyzed for the presence of secondary metabolite biosynthesis gene clusters (BGCs) using antiSMASH software. BGCs specifying both known and potentially novel secondary metabolites were identified, suggesting that these isolates might be sources for new bioactive compounds. The results of this analysis also implied horizontal transfer of several gene clusters between the studied isolates, which was especially evident for the lantibiotic- and thiopeptide-encoding BGCs. The latter implies the significance of particular secondary metabolites for the adaptation of Streptomyces to the spatially enclosed marine environments such as marine sponges. Two bioactive isolates, one showing activity against both yeast and Bacillus subtilis, and one only against yeast were analyzed in details, leading to the identification of cycloheximide, linearmycins, and echinomycins that are presumably responsible for the observed bioactivities.
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Affiliation(s)
| | - Martin Zehl
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
| | - Olha Schneider
- Department of Pharmacognosy, University of Vienna, Vienna, Austria
| | | | - Tobias Busche
- Center for Biotechnology, Bielefeld University, Bielefeld, Germany
| | - Jörn Kalinowski
- Center for Biotechnology, Bielefeld University, Bielefeld, Germany
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4
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Lu QP, Ye JJ, Huang YM, Liu D, Liu LF, Dong K, Razumova EA, Osterman IA, Sergiev PV, Dontsova OA, Jia SH, Huang DL, Sun CH. Exploitation of Potentially New Antibiotics from Mangrove Actinobacteria in Maowei Sea by Combination of Multiple Discovery Strategies. Antibiotics (Basel) 2019; 8:E236. [PMID: 31783564 PMCID: PMC6963217 DOI: 10.3390/antibiotics8040236] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 11/21/2019] [Accepted: 11/22/2019] [Indexed: 12/05/2022] Open
Abstract
Rediscovery of known antibiotics from actinobacteria, especially Streptomyces, has become a bottleneck issue. Nowadays, more specific identification and dereplication could be acquired by a combination of modern analytic techniques with various databases. In this study, 261 actinobacterial strains were isolated from 8 mangrove soil samples by culture-dependent method. A total of 83 strains were selected to evaluate antibacterial activities and mechanisms by disc diffusion method and a unique double fluorescent protein reporter system (pDualrep2), respectively. Thirty-two strains exhibited antagonistic activity against at least one of the "ESKAPE" pathogens. Four Streptomyces strains (B475, B486, B353, and B98) showed strong inhibitory activity against Gram-positive bacteria and induced DNA damage SOS response. One Micromonospora strain (B704) exhibited inhibitory activity against several pathogens and induced attenuation-based translational inhibitors reporter. Seven members of quinoxaline-type antibiotics including quinomycin A, quinomycin monosulfoxide, and other five putative new analogues were found from the culture broth of strain B475 by a combination of anti-MRSA guide, HPTLC, HPLC-UV, and UPLC-UV-HRESIMS/MS analysis, Chemspider searching, and MS/MS-based molecular networking analysis. In conclusion, this study not only demonstrated that mangrove is a rich source of actinobacteria with the potentially new antibiotics but showed rapid dereplication of known antibiotics in the early stage can improve efficiency for the discovery of new antibiotics.
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Affiliation(s)
- Qin-Pei Lu
- Department of Microbial Chemistry, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; (Q.-P.L.); (L.-F.L.)
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Jing-Jing Ye
- College of Basic Medical Sciences, Guilin Medical University, Guilin 541004, China; (J.-J.Y.); (S.-H.J.)
| | - Yong-Mei Huang
- Zhanjiang for R&D Marine Microbial Resources in the Beibu Gulf Rim, Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China;
| | - Di Liu
- College of Life Sciences, Jiamusi University, Jiamusi 154007, China;
| | - Li-Fang Liu
- Department of Microbial Chemistry, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; (Q.-P.L.); (L.-F.L.)
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Kun Dong
- College of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China;
| | - Elizaveta A. Razumova
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119992, Russia; (E.A.R.); (I.A.O.); (P.V.S.); (O.A.D.)
| | - Ilya A. Osterman
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119992, Russia; (E.A.R.); (I.A.O.); (P.V.S.); (O.A.D.)
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow 143025, Russia
| | - Petr V. Sergiev
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119992, Russia; (E.A.R.); (I.A.O.); (P.V.S.); (O.A.D.)
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow 143025, Russia
| | - Olga A. Dontsova
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119992, Russia; (E.A.R.); (I.A.O.); (P.V.S.); (O.A.D.)
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow 143025, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow 119992, Russia
| | - Shu-Han Jia
- College of Basic Medical Sciences, Guilin Medical University, Guilin 541004, China; (J.-J.Y.); (S.-H.J.)
| | - Da-Lin Huang
- College of Basic Medical Sciences, Guilin Medical University, Guilin 541004, China; (J.-J.Y.); (S.-H.J.)
| | - Cheng-Hang Sun
- Department of Microbial Chemistry, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; (Q.-P.L.); (L.-F.L.)
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
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5
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Alshaer W, Zraikat M, Amer A, Nsairat H, Lafi Z, Alqudah DA, Al Qadi E, Alsheleh T, Odeh F, Alkaraki A, Zihlif M, Bustanji Y, Fattal E, Awidi A. Encapsulation of echinomycin in cyclodextrin inclusion complexes into liposomes: in vitro anti-proliferative and anti-invasive activity in glioblastoma. RSC Adv 2019; 9:30976-30988. [PMID: 35529392 PMCID: PMC9072562 DOI: 10.1039/c9ra05636j] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 09/20/2019] [Indexed: 02/03/2023] Open
Abstract
Echinomycin, a DNA bis-intercalator peptide, belongs to the family of quinoxaline antibiotics. Echinomycin exhibits potent antitumor and antimicrobial activity. However, it is highly water insoluble and suffers from low bioavailability and unwanted side effects. Therefore, developing new formulations and delivery systems that can enhance echinomycin solubility and therapeutic potency is needed for further clinical application. In this study, echinomycin has been complexed into the hydrophobic cavity of γ-cyclodextrin (γCD) then encapsulated into PEGylated liposomes. The anti-proliferative and anti-invasive effect has been evaluated against U-87 MG glioblastoma cells. Echinomycin-in-γCD inclusion complexes have been characterized by phase solubility assay, TLC, and 1H-NMR. The echinomycin-in-γCD inclusion complexes have been loaded into liposomes using a thin film hydration method to end up with echinomycin-in-γCD-in-liposomes. Drug-loaded liposomes were able to inhibit cell proliferation with IC50 of 1.0 nM. Moreover, echinomycin-in-γCD-in-liposomes were found to inhibit the invasion of U-87 MG cells using the spheroid gel invasion assay. In conclusion, the current work describes for the first time γCD-echinomycin complexes and their encapsulation into PEGylated liposomes.
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Affiliation(s)
- Walhan Alshaer
- Cell Therapy Center, The University of Jordan PO Box: 5825 Amman Jordan +962 6 5355000 ext. 23960 +962 790823678 +962 795277455
| | - Manar Zraikat
- Department of Pharmacology, Faculty of Medicine, The University of Jordan Amman Jordan
| | - Amer Amer
- Department of Clinical Pharmacy, Faculty of Pharmacy, The University of Jordan Amman Jordan
| | - Hamdi Nsairat
- Department of Chemistry, Faculty of Science, The University of Jordan Amman Jordan
| | - Zainab Lafi
- Department of Clinical Pharmacy, Faculty of Pharmacy, The University of Jordan Amman Jordan
| | - Dana A Alqudah
- Cell Therapy Center, The University of Jordan PO Box: 5825 Amman Jordan +962 6 5355000 ext. 23960 +962 790823678 +962 795277455
| | - Enas Al Qadi
- Department of Pharmacology, Faculty of Medicine, The University of Jordan Amman Jordan
| | - Tasneem Alsheleh
- Department of Pharmacology, Faculty of Medicine, The University of Jordan Amman Jordan
| | - Fadwa Odeh
- Department of Chemistry, Faculty of Science, The University of Jordan Amman Jordan
| | - Arwa Alkaraki
- Cell Therapy Center, The University of Jordan PO Box: 5825 Amman Jordan +962 6 5355000 ext. 23960 +962 790823678 +962 795277455
- Department of Pharmacology, Faculty of Medicine, The University of Jordan Amman Jordan
| | - Malek Zihlif
- Department of Pharmacology, Faculty of Medicine, The University of Jordan Amman Jordan
| | - Yasser Bustanji
- Department of Clinical Pharmacy, Faculty of Pharmacy, The University of Jordan Amman Jordan
- HMCSR, The University of Jordan Amman Jordan
| | - Elias Fattal
- Institut Galien Paris-Sud, CNRS, Université Paris-Sud, Université Paris-Saclay Châtenay-Malabry France
| | - Abdalla Awidi
- Cell Therapy Center, The University of Jordan PO Box: 5825 Amman Jordan +962 6 5355000 ext. 23960 +962 790823678 +962 795277455
- Department of Hematology, Jordan University Hospital, The University of Jordan Amman Jordan
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6
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Xu Z, Fang SM, Bakowski MA, Rateb ME, Yang D, Zhu X, Huang Y, Zhao LX, Jiang Y, Duan Y, Hull MV, McNamara CW, Shen B. Discovery of Kirromycins with Anti- Wolbachia Activity from Streptomyces sp. CB00686. ACS Chem Biol 2019; 14:1174-1182. [PMID: 31074963 DOI: 10.1021/acschembio.9b00086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Lymphatic filariasis and onchocerciasis diseases caused by filarial parasite infections can lead to profound disability and affect millions of people worldwide. Standard mass drug administration campaigns require repetitive delivery of anthelmintics for years to temporarily block parasite transmission but do not cure infection because long-lived adult worms survive the treatment. Depletion of the endosymbiont Wolbachia, present in most filarial nematode species, results in death of adult worms and therefore represents a promising target for the treatment of filariasis. Here, we used a high-content imaging assay to screen the pure compounds collection of the natural products library at The Scripps Research Institute for anti- Wolbachia activity, leading to the identification of kirromycin B (1) as a lead candidate. Two additional congeners, kirromycin (2) and kirromycin C (3), were isolated and characterized from the same producing strain Streptomyces sp. CB00686. All three kirromycin congeners depleted Wolbachia in LDW1 Drosophila cells in vitro with half-maximal inhibitory concentrations (IC50) in nanomolar range, while doxycycline, a registered drug with anti- Wolbachia activity, showed lower activity with an IC50 of 152 ± 55 nM. Furthermore, 1-3 eliminated the Wolbachia endosymbiont in Brugia pahangi ovaries ex vivo with higher efficiency (65%-90%) at 1 μM than that of doxycycline (50%). No cytotoxicity against HEK293T and HepG2 mammalian cells was observed with 1-3 at the highest concentration (40 μM) used in the assay. These results suggest kirromycin is an effective lead scaffold, further exploration of which could potentially lead to the development of novel treatments for filarial nematode infections.
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Affiliation(s)
- Zhengren Xu
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Shi-Ming Fang
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | | | - Mostafa E. Rateb
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Dong Yang
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
- Natural Products Library Initiative at The Scripps Research Institute, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Xiangcheng Zhu
- Xiangya International Academy of Translational Medicine, Central South University, Changsha, Hunan 410013, China
- Hunan Engineering Research Center of Combinatorial Biosynthesis and Natural Product Drug Discovery, Changsha, Hunan 410013, China
| | - Yong Huang
- Xiangya International Academy of Translational Medicine, Central South University, Changsha, Hunan 410013, China
| | - Li-Xing Zhao
- Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, China
| | - Yi Jiang
- Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, China
| | - Yanwen Duan
- Xiangya International Academy of Translational Medicine, Central South University, Changsha, Hunan 410013, China
- Hunan Engineering Research Center of Combinatorial Biosynthesis and Natural Product Drug Discovery, Changsha, Hunan 410013, China
| | - Mitchell V. Hull
- Calibr at Scripps Research, La Jolla, California 92037, United States
| | - Case W. McNamara
- Calibr at Scripps Research, La Jolla, California 92037, United States
| | - Ben Shen
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
- Natural Products Library Initiative at The Scripps Research Institute, The Scripps Research Institute, Jupiter, Florida 33458, United States
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida 33458, United States
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7
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Zhang Y, Luo M, Li Y, Wang H, Ren X, Qi C. Facile, eco-friendly, catalyst-free synthesis of polyfunctionalized quinoxalines. Mol Divers 2017; 22:183-189. [PMID: 28980110 DOI: 10.1007/s11030-017-9777-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 08/02/2017] [Indexed: 02/05/2023]
Abstract
A novel, facile and eco-friendly synthesis of quinoxalines from [Formula: see text] and 1,2-diamines was developed. An attractive feature of this protocol is that the desired products could be generated efficiently in water and without any catalyst, which is in accordance with the aim of green chemistry. A plausible mechanism has been proposed.
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Affiliation(s)
- Yaohong Zhang
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Mengqiang Luo
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Yan Li
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Hai Wang
- School of Life Science, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Xiaorong Ren
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Chenze Qi
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China.
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8
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Investigation of chitosan’s antibacterial activity against vancomycin resistant microorganisms and their biofilms. Carbohydr Polym 2017; 174:369-376. [DOI: 10.1016/j.carbpol.2017.06.087] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 06/02/2017] [Accepted: 06/21/2017] [Indexed: 11/22/2022]
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9
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Cox G, Sieron A, King AM, De Pascale G, Pawlowski AC, Koteva K, Wright GD. A Common Platform for Antibiotic Dereplication and Adjuvant Discovery. Cell Chem Biol 2017; 24:98-109. [DOI: 10.1016/j.chembiol.2016.11.011] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 11/07/2016] [Accepted: 11/17/2016] [Indexed: 12/20/2022]
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10
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Hattori K, Koike K, Okuda K, Hirayama T, Ebihara M, Takenaka M, Nagasawa H. Solution-phase synthesis and biological evaluation of triostin A and its analogues. Org Biomol Chem 2016; 14:2090-111. [PMID: 26779679 DOI: 10.1039/c5ob02505b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Triostin A is a biosynthetic precursor of echinomycin which is one of the most potent hypoxia inducible factor 1 (HIF-1) inhibitors. An improved solution-phase synthesis of triostin A on a preparative scale has been achieved in 17.5% total yield in 13 steps. New analogues of triostin A with various aromatic chromophores, oxidized intra-peptide disulfide bridges and diastereoisomeric cyclic depsipeptide cores were also successfully synthesized. All analogues had a significant inhibitory effect on HIF-1 transcriptional activation in hypoxia and cytotoxicity on MCF-7 cells, with the exception of the derivatives containing a naphthalene chromophore or a thiosulfonate bridge. For the first time, triostin A, echinomycin and the thiosulfinate analogue of triostin A have been revealed to inhibit not only DNA binding of HIF-1 but also HIF-1α protein accumulation in MCF-7 cells. Furthermore, the thiosulfinate analogue and triostin A exhibited a hypoxia-selective cytotoxicity on MCF-7 cells. The improved solution-phase synthetic procedure described herein will contribute to the development of diverse bicyclic depsipeptide drug candidates with the potential to act as novel anti-cancer agents targeting hypoxic tumor microenvironments.
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Affiliation(s)
- Kozo Hattori
- Laboratory of Pharmaceutical and Medicinal Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Kota Koike
- Laboratory of Pharmaceutical and Medicinal Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Kensuke Okuda
- Laboratory of Pharmaceutical and Medicinal Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Tasuku Hirayama
- Laboratory of Pharmaceutical and Medicinal Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Masahiro Ebihara
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu, 501-1193, Japan.
| | - Mei Takenaka
- Laboratory of Pharmaceutical and Medicinal Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Hideko Nagasawa
- Laboratory of Pharmaceutical and Medicinal Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
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11
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Yan J, Xu Y, Zhuang F, Tian J, Zhang G. Highly efficient synthesis of quinoxaline derivatives from 1,2-benzenediamine and $$\alpha $$ α -aminoxylated 1,3-dicarbonyl compounds. Mol Divers 2016; 20:567-73. [PMID: 26797715 DOI: 10.1007/s11030-016-9657-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 01/08/2016] [Indexed: 02/03/2023]
Affiliation(s)
- Jianwei Yan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, Henan, People's Republic of China.
- School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China.
| | - Yanhong Xu
- School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Fangfang Zhuang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Jie Tian
- School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Guisheng Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, Henan, People's Republic of China.
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12
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Hilimire TA, Bennett RP, Stewart RA, Garcia-Miranda P, Blume A, Becker J, Sherer N, Helms ED, Butcher SE, Smith HC, Miller BL. N-Methylation as a Strategy for Enhancing the Affinity and Selectivity of RNA-binding Peptides: Application to the HIV-1 Frameshift-Stimulating RNA. ACS Chem Biol 2016; 11:88-94. [PMID: 26496521 PMCID: PMC4720131 DOI: 10.1021/acschembio.5b00682] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
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Human Immunodeficiency
Virus (HIV) type 1 uses a −1 programmed
ribosomal frameshift (−1 PRF) event to translate its enzymes
from the same transcript used to encode the virus’ structural
proteins. The frequency of this event is highly regulated, and significant
deviation from the normal 5–10% frequency has been demonstrated
to decrease viral infectivity. Frameshifting is primarily regulated
by the Frameshift Stimulatory Signal RNA (FSS-RNA), a thermodynamically
stable, highly conserved stem loop that has been proposed as a therapeutic
target. We describe the design, synthesis, and testing of a series
of N-methyl peptides able to bind the HIV-1 FSS RNA
stem loop with low nanomolar affinity and high selectivity. Surface
plasmon resonance (SPR) data indicates increased affinity is a reflection
of a substantially enhanced on rate. Compounds readily penetrate cell
membranes and inhibit HIV infectivity in a pseudotyped virus assay.
Viral infectivity inhibition correlates with compound-dependent changes
in the ratios of Gag and Gag-Pol in virus particles. As the first
compounds with both single digit nanomolar affinities for the FSS
RNA and an ability to inhibit HIV in cells, these studies support
the use of N-methylation for enhancing the affinity,
selectivity, and bioactivity of RNA-binding peptides.
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Affiliation(s)
| | | | | | - Pablo Garcia-Miranda
- Department
of Biochemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Alex Blume
- Department
of Biochemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Jordan Becker
- McArdle
Laboratory for Cancer Research and Institute for Molecular Virology, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Nathan Sherer
- McArdle
Laboratory for Cancer Research and Institute for Molecular Virology, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Eric D. Helms
- Department
of Chemistry, SUNY Geneseo, Geneseo, New York 14454, United States
| | - Samuel E. Butcher
- Department
of Biochemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
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13
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Ayoup MS, Ahmed HEA, El Massry AM, Senior S, Khattab SN, Hassan SY, Amer A. Synthesis, Docking, and Evaluation of Antimicrobial Activity of a New Series of Acyclo C-Nucleosides of 1, 2, 4-Triazolo[4, 3-a]quinoxaline Derivatives. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2396] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mohammed Salah Ayoup
- Department of Chemistry, Faculty of Science; Alexandria University; P.O. Box 426 Ibrahimia Alexandria Egypt
| | - Hany Emary Ali Ahmed
- Pharmacognosy and Pharmaceutical Chemistry Department, Pharmacy College; Taibah University; Al-Madinha Al-Munawarah Saudi Arabia
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy; Al-Azhar University; Cairo Egypt
| | - Abdel Moneim El Massry
- Department of Chemistry, Faculty of Science; Alexandria University; P.O. Box 426 Ibrahimia Alexandria Egypt
- Department of Chemistry, College of Sciences and Arts, Rabigh Campus; King Abdulaziz University; Jeddah Saudi Arabia
| | - Samir Senior
- Department of Chemistry, Faculty of Science; Alexandria University; P.O. Box 426 Ibrahimia Alexandria Egypt
- Department of Chemistry, College of Sciences and Arts, Rabigh Campus; King Abdulaziz University; Jeddah Saudi Arabia
| | - Sherine Nabil Khattab
- Department of Chemistry, Faculty of Science; Alexandria University; P.O. Box 426 Ibrahimia Alexandria Egypt
| | - Seham Yassen Hassan
- Department of Chemistry, Faculty of Science; Alexandria University; P.O. Box 426 Ibrahimia Alexandria Egypt
| | - Adel Amer
- Department of Chemistry, Faculty of Science; Alexandria University; P.O. Box 426 Ibrahimia Alexandria Egypt
- Department of Chemistry, Faculty of Science; Taibah University; Al-Madinha Al-Munawarah Saudi Arabia
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14
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Fernández J, Marín L, Alvarez-Alonso R, Redondo S, Carvajal J, Villamizar G, Villar CJ, Lombó F. Biosynthetic modularity rules in the bisintercalator family of antitumor compounds. Mar Drugs 2014; 12:2668-99. [PMID: 24821625 PMCID: PMC4052310 DOI: 10.3390/md12052668] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 04/09/2014] [Accepted: 04/11/2014] [Indexed: 12/05/2022] Open
Abstract
Diverse actinomycetes produce a family of structurally and biosynthetically related non-ribosomal peptide compounds which belong to the chromodepsipeptide family. These compounds act as bisintercalators into the DNA helix. They give rise to antitumor, antiparasitic, antibacterial and antiviral bioactivities. These compounds show a high degree of conserved modularity (chromophores, number and type of amino acids). This modularity and their high sequence similarities at the genetic level imply a common biosynthetic origin for these pathways. Here, we describe insights about rules governing this modular biosynthesis, taking advantage of the fact that nowadays five of these gene clusters have been made public (thiocoraline, triostin, SW-163 and echinomycin/quinomycin). This modularity has potential application for designing and producing novel genetic engineered derivatives, as well as for developing new chemical synthesis strategies. These would facilitate their clinical development.
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Affiliation(s)
- Javier Fernández
- Research Group BITTEN, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, C/Julián Clavería 7, Facultad de Medicina, Oviedo 33006, Spain.
| | - Laura Marín
- Research Group BITTEN, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, C/Julián Clavería 7, Facultad de Medicina, Oviedo 33006, Spain.
| | - Raquel Alvarez-Alonso
- Research Group BITTEN, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, C/Julián Clavería 7, Facultad de Medicina, Oviedo 33006, Spain.
| | - Saúl Redondo
- Research Group BITTEN, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, C/Julián Clavería 7, Facultad de Medicina, Oviedo 33006, Spain.
| | - Juan Carvajal
- Research Group BITTEN, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, C/Julián Clavería 7, Facultad de Medicina, Oviedo 33006, Spain.
| | - Germán Villamizar
- Research Group BITTEN, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, C/Julián Clavería 7, Facultad de Medicina, Oviedo 33006, Spain.
| | - Claudio J Villar
- Research Group BITTEN, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, C/Julián Clavería 7, Facultad de Medicina, Oviedo 33006, Spain.
| | - Felipe Lombó
- Research Group BITTEN, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, C/Julián Clavería 7, Facultad de Medicina, Oviedo 33006, Spain.
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15
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RK-1355A and B, novel quinomycin derivatives isolated from a microbial metabolites fraction library based on NPPlot screening. J Antibiot (Tokyo) 2014; 67:323-9. [PMID: 24496142 DOI: 10.1038/ja.2013.144] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 12/03/2013] [Accepted: 12/12/2013] [Indexed: 11/08/2022]
Abstract
Two novel quinomycin derivatives, RK-1355A (1) and B (2), and one known quinomycin derivative, UK-63,598 (3), were isolated from a microbial metabolites fraction library of Streptomyces sp. RK88-1355 based on Natural Products Plot screening. The structural elucidation of 1 and 2 was established through two-dimensional NMR and mass spectrometric measurements. They belong to a class of quinomycin antibiotics family having 3-hydroxyquinaldic acid and a sulfoxide moiety. They are the first examples for natural products as a quinoline type quinomycin having a sulfoxide on the intramolecular cross-linkage. They showed potent antiproliferative activities against various cancer cell lines and they were also found to exhibit moderate antibacterial activity.
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16
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Zheng B, Jia T, Walsh PJ. A General and Practical Palladium-Catalyzed Direct α-Arylation of Amides with Aryl Halides. Adv Synth Catal 2014; 356:165-178. [PMID: 24765060 PMCID: PMC3994175 DOI: 10.1002/adsc.201300851] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
An efficient system for the direct catalytic intermolecular α-arylation of acetamide derivatives with aryl bromides and chlorides is presented. The palladium catalyst is supported by Kwong's indole-based phosphine ligand and provides monoarylated amides in up to 95% yield. Excellent chemoselectivities (>10:1) in the mono- and diarylation with aryl bromides were achieved by careful selection of bases, solvents, and stoichiometry. Under the coupling conditions, the weakly acidic α-protons of amides (pKa up to 35) were reversibly depotonated by LiO t Bu, NaO t Bu, or NaN(SiMe3)2.
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Affiliation(s)
- Bing Zheng
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
- Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Tiezheng Jia
- Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Patrick J. Walsh
- Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
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17
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Espinosa A, Socha AM, Ryke E, Rowley DC. Antiamoebic properties of the actinomycete metabolites echinomycin A and tirandamycin A. Parasitol Res 2012; 111:2473-7. [PMID: 22763704 DOI: 10.1007/s00436-012-3019-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Accepted: 06/19/2012] [Indexed: 11/30/2022]
Abstract
Entamoeba histolytica infects 50 million people per year, causing 100,000 deaths worldwide. The primary treatment for amoebiasis is metronidazole. However, increased pathogen resistance combined with the drug's toxic side effects encourages a search for alternative therapeutic agents. Secondary metabolites from marine bacteria are a promising resource for antiprotozoan drug discovery. In this study, extracts from a collection of marine-derived actinomycetes were screened for antiamoebic properties, and the activities of antibiotics echinomycin A and tirandamycin A are shown. Both antibiotics inhibited the in vitro growth of a E. histolytica laboratory strain (HM-1:IMSS) and a clinical isolate (Colombia, Col) at 30- to 60-μM concentrations. EIC(50) (estimated inhibitory concentration) values were comparable for both antibiotics (44.3-46.3 μM) against the E. histolytica clinical isolate.
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Affiliation(s)
- Avelina Espinosa
- Department of Biology, Roger Williams University, One Old Ferry Road, Bristol, RI 02809, USA.
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18
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Nikapitiya C. Bioactive secondary metabolites from marine microbes for drug discovery. ADVANCES IN FOOD AND NUTRITION RESEARCH 2012; 65:363-87. [PMID: 22361200 DOI: 10.1016/b978-0-12-416003-3.00024-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The isolation and extraction of novel bioactive secondary metabolites from marine microorganisms have a biomedical potential for future drug discovery as the oceans cover 70% of the planet's surface and life on earth originates from sea. Wide range of novel bioactive secondary metabolites exhibiting pharmacodynamic properties has been isolated from marine microorganisms and many to be discovered. The compounds isolated from marine organisms (macro and micro) are important in their natural form and also as templates for synthetic modifications for the treatments for variety of deadly to minor diseases. Many technical issues are yet to overcome before wide-scale bioprospecting of marine microorganisms becomes a reality. This chapter focuses on some novel secondary metabolites having antitumor, antivirus, enzyme inhibitor, and other bioactive properties identified and isolated from marine microorganisms including bacteria, actinomycetes, fungi, and cyanobacteria, which could serve as potentials for drug discovery after their clinical trials.
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Affiliation(s)
- Chamilani Nikapitiya
- Department of Fisheries, Animal and Veterinary Science, University of Rhode Island, Kingston, RI, USA.
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19
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Zolova OE, Mady ASA, Garneau-Tsodikova S. Recent developments in bisintercalator natural products. Biopolymers 2010; 93:777-90. [DOI: 10.1002/bip.21489] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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