1
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Shin YH, Im JH, Kang I, Kim E, Jang SC, Cho E, Shin D, Hwang S, Du YE, Huynh TH, Ko K, Ko YJ, Nam SJ, Awakawa T, Lee J, Hong S, Abe I, Moore BS, Fenical W, Yoon YJ, Cho JC, Lee SK, Oh KB, Oh DC. Genomic and Spectroscopic Signature-Based Discovery of Natural Macrolactams. J Am Chem Soc 2023; 145:1886-1896. [PMID: 36634356 DOI: 10.1021/jacs.2c11527] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The logical and effective discovery of macrolactams, structurally unique natural molecules with diverse biological activities, has been limited by a lack of targeted search methods. Herein, a targeted discovery method for natural macrolactams was devised by coupling genomic signature-based PCR screening of a bacterial DNA library with spectroscopic signature-based early identification of macrolactams. DNA library screening facilitated the efficient selection of 43 potential macrolactam-producing strains (3.6% of 1,188 strains screened). The PCR amplicons of the amine-deprotecting enzyme-coding genes were analyzed to predict the macrolactam type (α-methyl, α-alkyl, or β-methyl) produced by the hit strains. 1H-15N HSQC-TOCSY NMR analysis of 15N-labeled culture extracts enabled macrolactam detection and structural type assignment without any purification steps. This method identified a high-titer Micromonospora strain producing salinilactam (1), a previously reported α-methyl macrolactam, and two Streptomyces strains producing new α-alkyl and β-methyl macrolactams. Subsequent purification and spectroscopic analysis led to the structural revision of 1 and the discovery of muanlactam (2), an α-alkyl macrolactam with diene amide and tetraene chromophores, and concolactam (3), a β-methyl macrolactam with a [16,6,6]-tricyclic skeleton. Detailed genomic analysis of the strains producing 1-3 identified putative biosynthetic gene clusters and pathways. Compound 2 displayed significant cytotoxicity against various cancer cell lines (IC50 = 1.58 μM against HCT116), whereas 3 showed inhibitory activity against Staphylococcus aureus sortase A. This genomic and spectroscopic signature-based method provides an efficient search strategy for new natural macrolactams and will be generally applicable for the discovery of nitrogen-bearing natural products.
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Affiliation(s)
- Yern-Hyerk Shin
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Ji Hyeon Im
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Ilnam Kang
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Eunji Kim
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Sung Chul Jang
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Eunji Cho
- Department of Agricultural Biotechnology, College of Agriculture & Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Daniel Shin
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Sunghoon Hwang
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Young Eun Du
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Thanh-Hau Huynh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Keebeom Ko
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Yoon-Joo Ko
- Laboratory of Nuclear Magnetic Resonance, National Center of Inter-University Research Facilities (NCIRF), Seoul National University, Seoul 08826, Republic of Korea
| | - Sang-Jip Nam
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Takayoshi Awakawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan.,RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Jeeyeon Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Suckchang Hong
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Bradley S Moore
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| | - William Fenical
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| | - Yeo Joon Yoon
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea.,MolGenBio Co., Ltd., Seoul 08826, Republic of Korea
| | - Jang-Cheon Cho
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Sang Kook Lee
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Ki-Bong Oh
- Department of Agricultural Biotechnology, College of Agriculture & Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
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2
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Kanoh N. Naturally Occurring Polyene Macrolactams as Pluripotent Stem Molecules: Their Chemistry and Biology, and Efforts toward the Creation of Polyene Macrolactam-based Induced Pluripotent Small Molecules. J SYN ORG CHEM JPN 2022. [DOI: 10.5059/yukigoseikyokaishi.80.817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Naoki Kanoh
- School of Pharmacy and Pharmaceutical Sciences, and Institute of Medicinal Chemistry, Hoshi University
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3
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Polyene Macrolactams from Marine and Terrestrial Sources: Structure, Production Strategies, Biosynthesis and Bioactivities. Mar Drugs 2022; 20:md20060360. [PMID: 35736163 PMCID: PMC9230918 DOI: 10.3390/md20060360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 02/04/2023] Open
Abstract
Over the past few decades (covering 1972 to 2022), astounding progress has been made in the elucidation of structures, bioactivities and biosynthesis of polyene macrolactams (PMLs), but they have only been partially summarized. PMLs possess a wide range of biological activities, particularly distinctive fungal inhibitory abilities, which render them a promising drug candidate. Moreover, the unique biosynthetic pathways including β-amino acid initiation and pericyclic reactions were presented in PMLs, leading to more attention from inside and outside the natural products community. According to current summation, in this review, the chem- and bio-diversity of PMLs from marine and terrestrial sources are considerably rich. A systematic, critical and comprehensive overview is in great need. This review described the PMLs’ general structural features, production strategies, biosynthetic pathways and the mechanisms of bioactivities. The challenges and opportunities for the research of PMLs are also discussed.
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4
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Liang M, Liu L, Xu F, Zeng X, Wang R, Yang J, Wang W, Karthik L, Liu J, Yang Z, Zhu G, Wang S, Bai L, Tong Y, Liu X, Wu M, Zhang LX, Tan GY. OUP accepted manuscript. Nucleic Acids Res 2022; 50:3581-3592. [PMID: 35323947 PMCID: PMC8989516 DOI: 10.1093/nar/gkac181] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 03/05/2022] [Accepted: 03/10/2022] [Indexed: 11/12/2022] Open
Abstract
Direct cloning of biosynthetic gene clusters (BGCs) from microbial genomes facilitates natural product-based drug discovery. Here, by combining Cas12a and the advanced features of bacterial artificial chromosome library construction, we developed a fast yet efficient in vitro platform for directly capturing large BGCs, named CAT-FISHING (CRISPR/Cas12a-mediated fast direct biosynthetic gene cluster cloning). As demonstrations, several large BGCs from different actinomycetal genomic DNA samples were efficiently captured by CAT-FISHING, the largest of which was 145 kb with 75% GC content. Furthermore, the directly cloned, 110 kb long, cryptic polyketide encoding BGC from Micromonospora sp. 181 was then heterologously expressed in a Streptomyces chassis. It turned out to be a new macrolactam compound, marinolactam A, which showed promising anticancer activity. Our results indicate that CAT-FISHING is a powerful method for complicated BGC cloning, and we believe that it would be an important asset to the entire community of natural product-based drug discovery.
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Affiliation(s)
| | | | | | | | - Ruijun Wang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Sciences, Huzhou University, Huzhou 313000, China
| | - Jinling Yang
- Institute of Pharmaceutical Biotechnology and Department of Gastroenterology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Weishan Wang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Loganathan Karthik
- State Key Laboratory of Bioreactor Engineering and School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Jiakun Liu
- Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Zhiheng Yang
- State Key Laboratory of Bioreactor Engineering and School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Guoliang Zhu
- State Key Laboratory of Bioreactor Engineering and School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Shuliu Wang
- State Key Laboratory of Bioreactor Engineering and School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Linquan Bai
- State Key Laboratory of Microbial Metabolism and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yaojun Tong
- State Key Laboratory of Microbial Metabolism and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xueting Liu
- State Key Laboratory of Bioreactor Engineering and School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Min Wu
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Li-Xin Zhang
- State Key Laboratory of Bioreactor Engineering and School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Gao-Yi Tan
- To whom correspondence should be addressed. Tel: +86 21 64253020; Fax: +86 21 64253020;
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5
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Kanoh N, Terajima Y, Tanaka S, Terashima R, Nishiyama H, Nagasawa S, Sasano Y, Iwabuchi Y, Nishimura S, Kakeya H. Toward the Creation of Induced Pluripotent Small (iPS) Molecules: Establishment of a Modular Synthetic Strategy for the Heronamide C-type Polyene Macrolactams and Their Conformational and Reactivity Analysis. J Org Chem 2021; 86:16231-16248. [PMID: 34797655 DOI: 10.1021/acs.joc.1c01760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly modular synthetic strategy for the heronamide C-type polyene macrolactams was established by synthesizing 8-deoxyheronamide C (2). The developed strategy enabled not only the total synthesis of 8-deoxyheronamide C (2) but also the unified synthesis of four heronamide-like molecules named "heronamidoids" (5-8). Conformational and reactivity analysis of the heronamidoids clarified that (1) the C19 stereochemistry mainly affected the conformation of the amide linkage, resulting in the change of alignment of two polyene units and reactivity toward photochemical [6π + 6π] cycloaddition, and (2) the C8,C9-diol moiety is important for the conversion to the heronamide A-type skeleton from the heronamide C skeleton.
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Affiliation(s)
- Naoki Kanoh
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.,Institute of Medicinal Chemistry, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Yuta Terajima
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Suguru Tanaka
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Ryusei Terashima
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Hiromichi Nishiyama
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Shota Nagasawa
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Yusuke Sasano
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Yoshiharu Iwabuchi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Shinichi Nishimura
- Department of Biotechnology, Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo 113-8657, Japan
| | - Hideaki Kakeya
- Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Shimo-Adachi-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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6
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Alvarez R, de Lera AR. Natural polyenic macrolactams and polycyclic derivatives generated by transannular pericyclic reactions: optimized biogenesis challenging chemical synthesis. Nat Prod Rep 2020; 38:1136-1220. [PMID: 33283831 DOI: 10.1039/d0np00050g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Covering from 1992 to the end of 2020-11-20.Genetically-encoded polyenic macrolactams, which are constructed by Nature using hybrid polyketide synthase/nonribosomal peptide synthase (PKSs/NRPSs) assembly lines, are part of the large collection of natural products isolated from bacteria. Activation of cryptic (i.e., silent) gene clusters in these microorganisms has more recently allowed to generate and eventually isolate additional members of the family. Having two unsaturated fragments separated by short saturated chains, the primary macrolactam is posited to undergo transannular reactions and further rearrangements thus leading to the generation of a structurally diverse collection of polycyclic (natural) products and oxidized derivatives. The review will cover the challenges that scientists face on the isolation of these unstable compounds from the cultures of the producing microorganisms, their structural characterization, biological activities, optimized biogenetic routes, as well as the skeletal rearrangements of the primary structures of the natural macrolactams derived from pericyclic reactions of the polyenic fragments. The efforts of the synthetic chemists to emulate Nature on the successful generation and structural confirmation of these natural products will also be reported.
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Affiliation(s)
- Rosana Alvarez
- Department of Organic Chemistry and Center for Biomedical Research (CINBIO), IBIV, Universidade de Vigo, 36310 Vigo, Spain.
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7
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Generation of incednine derivatives by mutasynthesis. J Antibiot (Tokyo) 2020; 73:794-797. [DOI: 10.1038/s41429-020-0329-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 04/19/2020] [Accepted: 05/14/2020] [Indexed: 11/09/2022]
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8
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Nishimura S, Matsumori N. Chemical diversity and mode of action of natural products targeting lipids in the eukaryotic cell membrane. Nat Prod Rep 2020; 37:677-702. [PMID: 32022056 DOI: 10.1039/c9np00059c] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Covering: up to 2019Nature furnishes bioactive compounds (natural products) with complex chemical structures, yet with simple, sophisticated molecular mechanisms. When natural products exhibit their activities in cells or bodies, they first have to bind or react with a target molecule in/on the cell. The cell membrane is a major target for bioactive compounds. Recently, our understanding of the molecular mechanism of interactions between natural products and membrane lipids progressed with the aid of newly-developed analytical methods. New technology reconnects old compounds with membrane lipids, while new membrane-targeting molecules are being discovered through the screening for antimicrobial potential of natural products. This review article focuses on natural products that bind to eukaryotic membrane lipids, and includes clinically important molecules and key research tools. The chemical diversity of membrane-targeting natural products and the molecular basis of lipid recognition are described. The history of how their mechanism was unveiled, and how these natural products are used in research are also mentioned.
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Affiliation(s)
- Shinichi Nishimura
- Department of Biotechnology, Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo 113-8657, Japan.
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9
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New Sipanmycin Analogues Generated by Combinatorial Biosynthesis and Mutasynthesis Approaches Relying on the Substrate Flexibility of Key Enzymes in the Biosynthetic Pathway. Appl Environ Microbiol 2020; 86:AEM.02453-19. [PMID: 31732573 DOI: 10.1128/aem.02453-19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 11/08/2019] [Indexed: 12/12/2022] Open
Abstract
The appearance of new infectious diseases, the increase in multidrug-resistant bacteria, and the need for more effective chemotherapeutic agents have oriented the interests of researchers toward the search for metabolites with novel or improved bioactivities. Sipanmycins are disaccharyl glycosylated macrolactams that exert antibiotic and cytotoxic activities. By applying combinatorial biosynthesis and mutasynthesis approaches, we have generated eight new members of the sipanmycin family. The introduction of plasmids harboring genes responsible for the biosynthesis of several deoxysugars into sipanmycin-producing Streptomyces sp. strain CS149 led to the production of six derivatives with altered glycosylation patterns. After structural elucidation of these new metabolites, we conclude that some of these sugars are the result of the combination of the enzymatic machinery encoded by the introduced plasmids and the native enzymes of the d-sipanose biosynthetic pathway of the wild-type CS149 strain. In addition, two analogues of the parental compounds with a modified polyketide backbone were generated by a mutasynthesis approach, feeding cultures of a mutant strain defective in sipanmycin biosynthesis with 3-aminopentanoic acid. The generation of new sipanmycin analogues shown in this work relied on the substrate flexibility of key enzymes involved in sipanmycin biosynthesis, particularly the glycosyltransferase pair SipS9/SipS14 and enzymes SipL3, SipL1, SipL7, and SipL2, which are involved in the incorporation of the polyketide synthase starting unit.IMPORTANCE Combinatorial biosynthesis has proved its usefulness in generating derivatives of already known compounds with novel or improved pharmacological properties. Sipanmycins are a family of glycosylated macrolactams produced by Streptomyces sp. strain CS149, whose antiproliferative activity is dependent on the sugar moieties attached to the aglycone. In this work, we report the generation of several sipanmycin analogues with different deoxysugars, showing the high degree of flexibility exerted by the glycosyltransferase machinery with respect to the recognition of diverse nucleotide-activated sugars. In addition, modifications in the macrolactam ring were introduced by mutasynthesis approaches, indicating that the enzymes involved in incorporating the starter unit have a moderate ability to introduce different types of β-amino acids. In conclusion, we have proved the substrate flexibility of key enzymes involved in sipanmycin biosynthesis, especially the glycosyltransferases, which can be exploited in future experiments.
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10
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Yeo WL, Heng E, Tan LL, Lim YW, Ching KC, Tsai DJ, Jhang YW, Lauderdale TL, Shia KS, Zhao H, Ang EL, Zhang MM, Lim YH, Wong FT. Biosynthetic engineering of the antifungal, anti-MRSA auroramycin. Microb Cell Fact 2020; 19:3. [PMID: 31906943 PMCID: PMC6943886 DOI: 10.1186/s12934-019-1274-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 12/21/2019] [Indexed: 12/12/2022] Open
Abstract
Using an established CRISPR-Cas mediated genome editing technique for streptomycetes, we explored the combinatorial biosynthesis potential of the auroramycin biosynthetic gene cluster in Streptomyces roseosporous. Auroramycin is a potent anti-MRSA polyene macrolactam. In addition, auroramycin has antifungal activities, which is unique among structurally similar polyene macrolactams, such as incednine and silvalactam. In this work, we employed different engineering strategies to target glycosylation and acylation biosynthetic machineries within its recently elucidated biosynthetic pathway. Auroramycin analogs with variations in C-, N- methylation, hydroxylation and extender units incorporation were produced and characterized. By comparing the bioactivity profiles of five of these analogs, we determined that unique disaccharide motif of auroramycin is essential for its antimicrobial bioactivity. We further demonstrated that C-methylation of the 3, 5-epi-lemonose unit, which is unique among structurally similar polyene macrolactams, is key to its antifungal activity.
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Affiliation(s)
- Wan Lin Yeo
- Metabolic Engineering, Functional Molecules & Polymers, Institute of Chemical and Engineering Sciences, A*STAR, Biopolis, Singapore
| | - Elena Heng
- Molecular Engineering Laboratory, Institute of Bioengineering and Nanotechnology, A*STAR, Biopolis, Singapore
| | - Lee Ling Tan
- Molecular Engineering Laboratory, Institute of Bioengineering and Nanotechnology, A*STAR, Biopolis, Singapore
| | - Yi Wee Lim
- Integrated Bio & Organic Chemistry, Functional Molecules & Polymers, Institute of Chemical and Engineering Sciences, A*STAR, Biopolis, Singapore
| | - Kuan Chieh Ching
- Integrated Bio & Organic Chemistry, Functional Molecules & Polymers, Institute of Chemical and Engineering Sciences, A*STAR, Biopolis, Singapore
| | - De-Juin Tsai
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Zhunan, Miaoli, Taiwan
| | - Yi Wun Jhang
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes (NHRI), Zhunan, Miaoli, Taiwan
| | - Tsai-Ling Lauderdale
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Zhunan, Miaoli, Taiwan
| | - Kak-Shan Shia
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes (NHRI), Zhunan, Miaoli, Taiwan
| | - Huimin Zhao
- Departments of Chemical and Biomolecular Engineering, Chemistry, Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Ee Lui Ang
- Metabolic Engineering, Functional Molecules & Polymers, Institute of Chemical and Engineering Sciences, A*STAR, Biopolis, Singapore
| | - Mingzi M Zhang
- Metabolic Engineering, Functional Molecules & Polymers, Institute of Chemical and Engineering Sciences, A*STAR, Biopolis, Singapore.,Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli, Taiwan
| | - Yee Hwee Lim
- Integrated Bio & Organic Chemistry, Functional Molecules & Polymers, Institute of Chemical and Engineering Sciences, A*STAR, Biopolis, Singapore.
| | - Fong T Wong
- Molecular Engineering Laboratory, Institute of Bioengineering and Nanotechnology, A*STAR, Biopolis, Singapore.
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11
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Das S, Ko N, Lee E, Kim SE, Lee BC. Stereoselective three-component cascade synthesis of α-substituted 2,4-dienamides from gem-difluorochloro ethanes. Chem Commun (Camb) 2019; 55:14355-14358. [PMID: 31720605 DOI: 10.1039/c9cc07100h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we describe a new transition metal-free Claisen rearrangement for the synthesis of α-substituted 2,4-dienamides. The one-pot, stereoselective three-component cascade reaction between a series of propargyl alcohols, amines, and gem-difluorochloro ethane derivatives afforded various polysubstituted 2,4-dienamides in good yields. This synthetic method for 1,1-captodative dienes, α-substituted 2,4-dienamides, can be utilized for preparing pharmaceutical analogues containing an indolin-2-one or lactone moiety.
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Affiliation(s)
- Shyamsundar Das
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, 13620, Republic of Korea.
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12
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Sarceda S, Souto JA, Otero D, de Lera ÁR, Domínguez M, Álvarez R. Improved synthesis of key fragments for the preparation of natural product incednine. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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13
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Comparative Genomic Insights into Secondary Metabolism Biosynthetic Gene Cluster Distributions of Marine Streptomyces. Mar Drugs 2019; 17:md17090498. [PMID: 31454987 PMCID: PMC6780079 DOI: 10.3390/md17090498] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/19/2019] [Accepted: 08/21/2019] [Indexed: 12/21/2022] Open
Abstract
Bacterial secondary metabolites have huge application potential in multiple industries. Biosynthesis of bacterial secondary metabolites are commonly encoded in a set of genes that are organized in the secondary metabolism biosynthetic gene clusters (SMBGCs). The development of genome sequencing technology facilitates mining bacterial SMBGCs. Marine Streptomyces is a valuable resource of bacterial secondary metabolites. In this study, 87 marine Streptomyces genomes were obtained and carried out into comparative genomic analysis, which revealed their high genetic diversity due to pan-genomes owning 123,302 orthologous clusters. Phylogenomic analysis indicated that the majority of Marine Streptomyces were classified into three clades named Clade I, II, and III, containing 23, 38, and 22 strains, respectively. Genomic annotations revealed that SMBGCs in the genomes of marine Streptomyces ranged from 16 to 84. Statistical analysis pointed out that phylotypes and ecotypes were both associated with SMBGCs distribution patterns. The Clade I and marine sediment-derived Streptomyces harbored more specific SMBGCs, which consisted of several common ones; whereas the Clade II and marine invertebrate-derived Streptomyces have more SMBGCs, acting as more plentiful resources for mining secondary metabolites. This study is beneficial for broadening our knowledge about SMBGC distribution patterns in marine Streptomyces and developing their secondary metabolites in the future.
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Wong JH, Alfatah M, Kong KW, Hoon S, Yeo WL, Ching KC, Jie Hui Goh C, Zhang MM, Lim YH, Wong FT, Arumugam P. Chemogenomic profiling in yeast reveals antifungal mode-of-action of polyene macrolactam auroramycin. PLoS One 2019; 14:e0218189. [PMID: 31181115 PMCID: PMC6557514 DOI: 10.1371/journal.pone.0218189] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 05/28/2019] [Indexed: 12/23/2022] Open
Abstract
In this study, we report antifungal activity of auroramycin against Candida albicans, Candida tropicalis, and Cryptococcus neoformans. Auroramycin, a potent antimicrobial doubly glycosylated 24-membered polyene macrolactam, was previously isolated and characterized, following CRISPR-Cas9 mediated activation of a silent polyketide synthase biosynthetic gene cluster in Streptomyces rosesporous NRRL 15998. Chemogenomic profiling of auroramycin in yeast has linked its antifungal bioactivity to vacuolar transport and membrane organization. This was verified by disruption of vacuolar structure and membrane integrity of yeast cells with auroramycin treatment. Addition of salt but not sorbitol to the medium rescued the growth of auroramycin-treated yeast cells suggesting that auroramycin causes ionic stress. Furthermore, auroramycin caused hyperpolarization of the yeast plasma membrane and displayed a synergistic interaction with cationic hygromycin. Our data strongly suggest that auroramycin inhibits yeast cells by causing leakage of cations from the cytoplasm. Thus, auroramycin’s mode-of-action is distinct from known antifungal polyenes, reinforcing the importance of natural products in the discovery of new anti-infectives.
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Affiliation(s)
| | | | | | - Shawn Hoon
- Molecular Engineering Laboratory, Singapore
| | - Wan Lin Yeo
- Metabolic Engineering Research Laboratory, Institute of Chemical and Engineering Sciences, Singapore
| | - Kuan Chieh Ching
- Organic Chemistry, Institute of Chemical and Engineering Sciences, Singapore
| | | | - Mingzi M Zhang
- Metabolic Engineering Research Laboratory, Institute of Chemical and Engineering Sciences, Singapore
| | - Yee Hwee Lim
- Organic Chemistry, Institute of Chemical and Engineering Sciences, Singapore
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15
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Du YL, Ryan KS. Pyridoxal phosphate-dependent reactions in the biosynthesis of natural products. Nat Prod Rep 2019; 36:430-457. [DOI: 10.1039/c8np00049b] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We review reactions catalyzed by pyridoxal phosphate-dependent enzymes, highlighting enzymes reported in the recent natural product biosynthetic literature.
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Affiliation(s)
- Yi-Ling Du
- Institute of Pharmaceutical Biotechnology
- Zhejiang University School of Medicine
- Hangzhou
- China
| | - Katherine S. Ryan
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
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16
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Imoto M. Chemistry and biology for the small molecules targeting characteristics of cancer cells. Biosci Biotechnol Biochem 2018; 83:1-10. [PMID: 30247093 DOI: 10.1080/09168451.2018.1518704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 08/22/2018] [Indexed: 10/28/2022]
Abstract
Despite the marked progress of cancer research, cancer is the predominant cause of death in Japan, and therefore development of effective therapeutic drugs is expected. Chemical biology is a research field utilizing small molecules to investigate biological phenomena. One of the most important aims of chemical biology is to find the small molecules, and natural products are ideal screening sources due to their structural diversity. Therefore, natural product screening based on the progress of chemical biology prompted us to find small molecules targeting cancer characteristics. Another contribution of chemical biology is to facilitate the target identification of small molecule. Therefore, among a variety of methods to uncover protein function, chemical biology is a remarkable approach in which small molecules are used as probes to elucidate protein functions related to cancer development. ABBREVIATIONS EGF: Epidermal growth factor; PDGF: Platelet-derived growth factor; CRPC: Castration-resistant prostate cancer; AR: Androgen receptor; FTase: Farnesyl transferase; 5-LOX: 5-Lipoxygenase; LT: Leukotriene; CysLT1: Cysteinyl leukotriene receptor 1; GPA: Glucopiericidin A; PA: Piericidin A; XN: Xanthohumol; VCP: Valosin-containing protein; ACACA: Acetyl-CoA carboxylase-α.
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Affiliation(s)
- Masaya Imoto
- a Department of Biosciences and Informatics, Faculty of Science and Technology , Keio University , Kohoku-ku, Yokohama , Japan
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17
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Cooperative Involvement of Glycosyltransferases in the Transfer of Amino Sugars during the Biosynthesis of the Macrolactam Sipanmycin by Streptomyces sp. Strain CS149. Appl Environ Microbiol 2018; 84:AEM.01462-18. [PMID: 30006405 DOI: 10.1128/aem.01462-18] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 07/11/2018] [Indexed: 12/22/2022] Open
Abstract
Macrolactams comprise a family of natural compounds with important bioactivities, such as antibiotic, antifungal, and antiproliferative activities. Sipanmycins A and B are two novel members of this family, with two sugar moieties attached to the aglycon. In the related macrolactam vicenistatin, the sugar moiety has been proven to be essential for cytotoxicity. In this work, the gene cluster responsible for the biosynthesis of sipanmycins (sip cluster) in Streptomyces sp. strain CS149 is described and the steps involved in the glycosylation of the final compounds unraveled. Also, the cooperation of two different glycosyltransferases in each glycosylation step is demonstrated. Additionally, the essential role of SipO2 as an auxiliary protein in the incorporation of the second deoxy sugar is addressed. In light of the results obtained by the generation of mutant strains and in silico characterization of the sip cluster, a biosynthetic pathway for sipanmycins and the two deoxy sugars attached is proposed. Finally, the importance of the hydroxyl group at C-10 of the macrolactam ring and the sugar moieties for cytotoxicity and antibiotic activity of sipanmycins is shown.IMPORTANCE The rapid emergence of infectious diseases and multiresistant pathogens has increased the necessity for new bioactive compounds; thus, novel strategies have to be developed to find them. Actinomycetes isolated in symbiosis with insects have attracted attention in recent years as producers of metabolites with important bioactivities. Sipanmycins are glycosylated macrolactams produced by Streptomyces sp. CS149, isolated from leaf-cutting ants, and show potent cytotoxic activity. Here, we characterize the sip cluster and propose a biosynthetic pathway for sipanmycins. As far as we know, it is the first time that the cooperation between two different glycosyltransferases is demonstrated to be strictly necessary for the incorporation of the same sugar. Also, a third protein with homology to P450 monooxygenases, SipO2, is shown to be essential in the second glycosylation step, forming a complex with the glycosyltransferase pair SipS9-SipS14.
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18
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Lim YH, Wong FT, Yeo WL, Ching KC, Lim YW, Heng E, Chen S, Tsai DJ, Lauderdale TL, Shia KS, Ho YS, Hoon S, Ang EL, Zhang MM, Zhao H. Auroramycin: A Potent Antibiotic from Streptomyces roseosporus by CRISPR-Cas9 Activation. Chembiochem 2018; 19:1716-1719. [PMID: 29799651 DOI: 10.1002/cbic.201800266] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Indexed: 11/09/2022]
Abstract
Silent biosynthetic gene clusters represent a potentially rich source of new bioactive compounds. We report the discovery, characterization, and biosynthesis of a novel doubly glycosylated 24-membered polyene macrolactam from a silent biosynthetic gene cluster in Streptomyces roseosporus by using the CRISPR-Cas9 gene cluster activation strategy. Structural characterization of this polyketide, named auroramycin, revealed a rare isobutyrylmalonyl extender unit and a unique pair of amino sugars. Relative and absolute stereochemistry were determined by using a combination of spectroscopic analyses, chemical derivatization, and computational analysis. The activated gene cluster for auroramycin production was also verified by transcriptional analyses and gene deletions. Finally, auroramycin exhibited potent anti-methicillin-resistant Staphylococcus aureus (anti-MRSA) activity towards clinical drug-resistant isolates.
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Affiliation(s)
- Yee Hwee Lim
- Organic Chemistry, Institute of Chemical and Engineering Sciences (ICES), A*STAR, 8 Biomedical Grove, Neuros #07-01/02/03, Singapore, 138665, Singapore
| | - Fong Tian Wong
- Molecular Engineering Lab (MEL), Biomedical Science Institutes, A*STAR, 61 Biopolis Drive, Proteos #13-02, Singapore, 138673, Singapore
| | - Wan Lin Yeo
- Metabolic Engineering Research Laboratory (MERL), Science and Engineering Institutes, Agency for Science, Technology, and Research (A*STAR), 31 Biopolis Way, Nanos #01-01, Singapore, 138669, Singapore
| | - Kuan Chieh Ching
- Organic Chemistry, Institute of Chemical and Engineering Sciences (ICES), A*STAR, 8 Biomedical Grove, Neuros #07-01/02/03, Singapore, 138665, Singapore
| | - Yi Wee Lim
- Organic Chemistry, Institute of Chemical and Engineering Sciences (ICES), A*STAR, 8 Biomedical Grove, Neuros #07-01/02/03, Singapore, 138665, Singapore
| | - Elena Heng
- Molecular Engineering Lab (MEL), Biomedical Science Institutes, A*STAR, 61 Biopolis Drive, Proteos #13-02, Singapore, 138673, Singapore
| | - Shuwen Chen
- Bioprocessing Technology Institute (BTI), A*STAR, 20 Biopolis Way, Centros #06-01, Singapore, 138668, Singapore
| | - De-Juin Tsai
- National Institute of Infectious Diseases and Vaccinology (DJT & TLL), and, Institute of Biotechnology and Pharmaceutical Research (KSS), National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan Town, Miaoli County, 350, Taiwan, R.O.C
| | - Tsai-Ling Lauderdale
- National Institute of Infectious Diseases and Vaccinology (DJT & TLL), and, Institute of Biotechnology and Pharmaceutical Research (KSS), National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan Town, Miaoli County, 350, Taiwan, R.O.C
| | - Kak-Shan Shia
- National Institute of Infectious Diseases and Vaccinology (DJT & TLL), and, Institute of Biotechnology and Pharmaceutical Research (KSS), National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan Town, Miaoli County, 350, Taiwan, R.O.C
| | - Ying Swan Ho
- Bioprocessing Technology Institute (BTI), A*STAR, 20 Biopolis Way, Centros #06-01, Singapore, 138668, Singapore
| | - Shawn Hoon
- Molecular Engineering Lab (MEL), Biomedical Science Institutes, A*STAR, 61 Biopolis Drive, Proteos #13-02, Singapore, 138673, Singapore
| | - Ee Lui Ang
- Metabolic Engineering Research Laboratory (MERL), Science and Engineering Institutes, Agency for Science, Technology, and Research (A*STAR), 31 Biopolis Way, Nanos #01-01, Singapore, 138669, Singapore
| | - Mingzi M Zhang
- Metabolic Engineering Research Laboratory (MERL), Science and Engineering Institutes, Agency for Science, Technology, and Research (A*STAR), 31 Biopolis Way, Nanos #01-01, Singapore, 138669, Singapore
| | - Huimin Zhao
- Metabolic Engineering Research Laboratory (MERL), Science and Engineering Institutes, Agency for Science, Technology, and Research (A*STAR), 31 Biopolis Way, Nanos #01-01, Singapore, 138669, Singapore
- 215 Roger Adams Laboratory, Box C3, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL, 61801, USA
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19
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Malmierca MG, González-Montes L, Pérez-Victoria I, Sialer C, Braña AF, García Salcedo R, Martín J, Reyes F, Méndez C, Olano C, Salas JA. Searching for Glycosylated Natural Products in Actinomycetes and Identification of Novel Macrolactams and Angucyclines. Front Microbiol 2018; 9:39. [PMID: 29441046 PMCID: PMC5797532 DOI: 10.3389/fmicb.2018.00039] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 01/09/2018] [Indexed: 11/13/2022] Open
Abstract
Many bioactive natural products are glycosylated compounds in which the sugar components usually participate in interaction and molecular recognition of the cellular target. Therefore, the presence of sugar moieties is important, in some cases essential, for bioactivity. Searching for novel glycosylated bioactive compounds is an important aim in the field of the research for natural products from actinomycetes. A great majority of these sugar moieties belong to the 6-deoxyhexoses and share two common biosynthetic steps catalyzed by a NDP-D-glucose synthase (GS) and a NDP-D-glucose 4,6-dehydratase (DH). Based on this fact, seventy one Streptomyces strains isolated from the integument of ants of the Tribe Attini were screened for the presence of biosynthetic gene clusters (BGCs) for glycosylated compounds. Total DNAs were analyzed by PCR amplification using oligo primers for GSs and DHs and also for a NDP-D-glucose-2,3-dehydratases. Amplicons were used in gene disruption experiments to generate non-producing mutants in the corresponding clusters. Eleven mutants were obtained and comparative dereplication analyses between the wild type strains and the corresponding mutants allowed in some cases the identification of the compound coded by the corresponding cluster (lobophorins, vicenistatin, chromomycins and benzanthrins) and that of two novel macrolactams (sipanmycin A and B). Several strains did not show UPLC differential peaks between the wild type strain and mutant profiles. However, after genome sequencing of these strains, the activation of the expression of two clusters was achieved by using nutritional and genetic approaches leading to the identification of compounds of the cervimycins family and two novel members of the warkmycins family. Our work defines a useful strategy for the identification new glycosylated compounds by a combination of genome mining, gene inactivation experiments and the activation of silent biosynthetic clusters in Streptomyces strains.
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Affiliation(s)
- Mónica G Malmierca
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
| | - Lorena González-Montes
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, Oviedo, Spain
| | | | - Carlos Sialer
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, Oviedo, Spain
| | - Alfredo F Braña
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
| | - Raúl García Salcedo
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, Oviedo, Spain
| | - Jesús Martín
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Fernando Reyes
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Carmen Méndez
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
| | - Carlos Olano
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
| | - José A Salas
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
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20
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Govindarajan M. Amphiphilic glycoconjugates as potential anti-cancer chemotherapeutics. Eur J Med Chem 2017; 143:1208-1253. [PMID: 29126728 DOI: 10.1016/j.ejmech.2017.10.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 09/14/2017] [Accepted: 10/08/2017] [Indexed: 12/13/2022]
Abstract
Amphiphilicity is one of the desirable features in the process of drug development which improves the biological as well as the pharmacokinetics profile of bioactive molecule. Carbohydrate moieties present in anti-cancer natural products and synthetic molecules influence the amphiphilicity and hence their bioactivity. This review focuses on natural and synthetic amphiphilic anti-cancer glycoconjugates. Different classes of molecules with varying degree of amphiphilicity are covered with discussions on their structure-activity relationship and mechanism of action.
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Affiliation(s)
- Mugunthan Govindarajan
- Emory Institute for Drug Development, Emory University, 954 Gatewood Road, Atlanta, GA 30329, United States.
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21
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Beemelmanns C, Ramadhar TR, Kim KH, Klassen JL, Cao S, Wyche TP, Hou Y, Poulsen M, Bugni TS, Currie CR, Clardy J. Macrotermycins A-D, Glycosylated Macrolactams from a Termite-Associated Amycolatopsis sp. M39. Org Lett 2017; 19:1000-1003. [PMID: 28207275 DOI: 10.1021/acs.orglett.6b03831] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Bioassay-guided metabolomic analyses led to the characterization of four new 20-membered glycosylated polyketide macrolactams, macrotermycins A-D, from a termite-associated actinomycete, Amycolatopsis sp. M39. M39's sequenced genome revealed the macrotermycin's putative biosynthetic gene cluster. Macrotermycins A and C had antibacterial activity against human-pathogenic Staphylococcus aureus and, of greater ecological relevance, they also had selective antifungal activity against a fungal parasite of the termite fungal garden.
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Affiliation(s)
- Christine Beemelmanns
- Leibniz Institute for Natural Product Research and Infection Biology, Hans-Knöll-Institute , 07745 Jena, Germany
| | - Timothy R Ramadhar
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School , Boston, Massachusetts 02115, United States
| | - Ki Hyun Kim
- Natural Product Research Laboratory, School of Pharmacy, Sungkyunkwan University , Suwon 440-746, Republic of Korea
| | - Jonathan L Klassen
- Department of Molecular & Cell Biology, University of Connecticut , Storrs, Connecticut 06269, United States
| | - Shugeng Cao
- Daniel K. Inouye College of Pharmacy, University of Hawaii , Hilo, Hawaii 96720, United States
| | - Thomas P Wyche
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School , Boston, Massachusetts 02115, United States
| | | | - Michael Poulsen
- Centre for Social Evolution, Section for Ecology and Evolution, Department of Biology, University of Copenhagen , 2100 Copenhagen East, Denmark
| | | | | | - Jon Clardy
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School , Boston, Massachusetts 02115, United States
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22
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Elshahawi SI, Shaaban KA, Kharel MK, Thorson JS. A comprehensive review of glycosylated bacterial natural products. Chem Soc Rev 2015; 44:7591-697. [PMID: 25735878 PMCID: PMC4560691 DOI: 10.1039/c4cs00426d] [Citation(s) in RCA: 293] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A systematic analysis of all naturally-occurring glycosylated bacterial secondary metabolites reported in the scientific literature up through early 2013 is presented. This comprehensive analysis of 15 940 bacterial natural products revealed 3426 glycosides containing 344 distinct appended carbohydrates and highlights a range of unique opportunities for future biosynthetic study and glycodiversification efforts.
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Affiliation(s)
- Sherif I Elshahawi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY, USA. and Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY, USA
| | - Khaled A Shaaban
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY, USA. and Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY, USA
| | - Madan K Kharel
- School of Pharmacy, University of Maryland Eastern Shore, Princess Anne, Maryland, USA
| | - Jon S Thorson
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY, USA. and Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY, USA
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23
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Schulze CJ, Donia MS, Siqueira-Neto JL, Ray D, Raskatov JA, Green RE, McKerrow JH, Fischbach MA, Linington RG. Genome-Directed Lead Discovery: Biosynthesis, Structure Elucidation, and Biological Evaluation of Two Families of Polyene Macrolactams against Trypanosoma brucei. ACS Chem Biol 2015; 10:2373-81. [PMID: 26270237 DOI: 10.1021/acschembio.5b00308] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Marine natural products are an important source of lead compounds against many pathogenic targets. Herein, we report the discovery of lobosamides A-C from a marine actinobacterium, Micromonospora sp., representing three new members of a small but growing family of bacterially produced polyene macrolactams. The lobosamides display growth inhibitory activity against the protozoan parasite Trypanosoma brucei (lobosamide A IC50 = 0.8 μM), the causative agent of human African trypanosomiasis (HAT). The biosynthetic gene cluster of the lobosamides was sequenced and suggests a conserved cluster organization among the 26-membered macrolactams. While determination of the relative and absolute configurations of many members of this family is lacking, the absolute configurations of the lobosamides were deduced using a combination of chemical modification, detailed spectroscopic analysis, and bioinformatics. We implemented a "molecules-to-genes-to-molecules" approach to determine the prevalence of similar clusters in other bacteria, which led to the discovery of two additional macrolactams, mirilactams A and B from Actinosynnema mirum. These additional analogs have allowed us to identify specific structure-activity relationships that contribute to the antitrypanosomal activity of this class. This approach illustrates the power of combining chemical analysis and genomics in the discovery and characterization of natural products as new lead compounds for neglected disease targets.
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Affiliation(s)
- Christopher J. Schulze
- Department
of Chemistry and Biochemistry, University of California Santa Cruz, Santa
Cruz, California 95064, United States
| | - Mohamed S. Donia
- Department
of Bioengineering and Therapeutic Sciences and the California Institute
for Quantitative Biosciences, University of California San Francisco, San
Francisco, California 94158, United States
| | - Jair L. Siqueira-Neto
- Skaggs
School of Pharmacy, University of California San Diego, San Diego, California 92093, United States
| | - Debalina Ray
- Department
of Pathology, University of California San Francisco, San Francisco, California 94158, United States
| | - Jevgenij A. Raskatov
- Department
of Chemistry and Biochemistry, University of California Santa Cruz, Santa
Cruz, California 95064, United States
| | - Richard E. Green
- Department
of Biomolecular Engineering, University of California Santa Cruz, Santa
Cruz, California 95064, United States
| | - James H. McKerrow
- Skaggs
School of Pharmacy, University of California San Diego, San Diego, California 92093, United States
| | - Michael A. Fischbach
- Department
of Bioengineering and Therapeutic Sciences and the California Institute
for Quantitative Biosciences, University of California San Francisco, San
Francisco, California 94158, United States
| | - Roger G. Linington
- Department
of Chemistry and Biochemistry, University of California Santa Cruz, Santa
Cruz, California 95064, United States
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24
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Derewacz DK, Covington BC, McLean JA, Bachmann BO. Mapping Microbial Response Metabolomes for Induced Natural Product Discovery. ACS Chem Biol 2015; 10:1998-2006. [PMID: 26039241 DOI: 10.1021/acschembio.5b00001] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Intergeneric microbial interactions may originate a significant fraction of secondary metabolic gene regulation in nature. Herein, we expose a genomically characterized Nocardiopsis strain, with untapped polyketide biosynthetic potential, to intergeneric interactions via coculture with low inoculum exposure to Escherichia, Bacillus, Tsukamurella, and Rhodococcus. The challenge-induced responses of extracted metabolites were characterized via multivariate statistical and self-organizing map (SOM) analyses, revealing the magnitude and selectivity engendered by the limiting case of low inoculum exposure. The collected inventory of cocultures revealed substantial metabolomic expansion in comparison to monocultures with nearly 14% of metabolomic features in cocultures undetectable in monoculture conditions and many features unique to coculture genera. One set of SOM-identified responding features was isolated, structurally characterized by multidimensional NMR, and revealed to comprise previously unreported polyketides containing an unusual pyrrolidinol substructure and moderate and selective cytotoxicity. Designated ciromicin A and B, they are detected across mixed cultures with intergeneric preferences under coculture conditions. The structural novelty of ciromicin A is highlighted by its ability to undergo a diastereoselective photochemical 12-π electron rearrangement to ciromicin B at visible wavelengths. This study shows how organizing trends in metabolomic responses under coculture conditions can be harnessed to characterize multipartite cultures and identify previously silent secondary metabolism.
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Affiliation(s)
- Dagmara K. Derewacz
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Brett C. Covington
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - John A. McLean
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Brian O. Bachmann
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
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25
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Tashiro E, Imoto M. Chemical biology of compounds obtained from screening using disease models. Arch Pharm Res 2015; 38:1651-60. [PMID: 26177809 DOI: 10.1007/s12272-015-0633-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Accepted: 07/06/2015] [Indexed: 01/06/2023]
Abstract
Bioactive compounds are extremely powerful tools for studying biological systems because they can rapidly, conditionally, often reversibly, and dose-dependently modulate the biological function of living cells. Moreover, they are expected to be drug seeds for chemotherapy of several diseases. Two approaches are used to find and obtain bioactive compounds, namely, molecular-target-based screening and phenotypic screening. Through phenotypic screening that mimics tumor metastasis, multi-drug resistance, and Parkinson's disease, we identified several compounds that inhibit cancer cell migration, anti-apoptotic function of Bcl-2/Bcl-xL, and neuronal cell death. By using MEK inhibitor that was developed by target-based screening, we discovered that MEK inhibitor selectively induces apoptosis in tumor cells with β-catenin mutation. Using target-based screening, we identified arabilin, a novel androgen antagonist. In this review, we introduce our recent studies on the identification of bioactive compounds by phenotypic screening and by target-based screening for drug-seed discovery.
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Affiliation(s)
- Estu Tashiro
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Masaya Imoto
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
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26
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Sugiyama R, Nishimura S, Matsumori N, Tsunematsu Y, Hattori A, Kakeya H. Structure and biological activity of 8-deoxyheronamide C from a marine-derived Streptomyces sp.: heronamides target saturated hydrocarbon chains in lipid membranes. J Am Chem Soc 2014; 136:5209-12. [PMID: 24670227 DOI: 10.1021/ja500128u] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Polyene macrolactams are a class of microbial metabolites, many of which show potent biological activities with unidentified modes of action. Here we report that 8-deoxyheronamide C, a new 20-membered polyene macrolactam from a marine-derived actinomycete Streptomyces sp., is a unique membrane binder. 8-Deoxyheronamide C showed a characteristic sensitivity profile against fission yeast sterol mutant cells, indicating that the metabolite targets cell membranes. We detected tight physical interaction between heronamides including 8-deoxyheronamide C and heronamide C and saturated hydrocarbon chains in lipid membranes using surface plasmon resonance experiments. We further show that heronamides induced abnormal cell wall morphology in fission yeast probably by perturbing the structure of membrane microdomains. This work will accelerate the biological and medical investigation of polyene macrolactams.
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Affiliation(s)
- Ryosuke Sugiyama
- Department of System Chemotherapy and Molecular Sciences, Division of Bioinformatics and Chemical Genomics, Graduate School of Pharmaceutical Sciences, Kyoto University , Sakyo-ku, Kyoto 606-8501, Japan
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Sakanishi K, Itoh S, Sugiyama R, Nishimura S, Kakeya H, Iwabuchi Y, Kanoh N. Total Synthesis of the Proposed Structure of Heronamide C. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301487] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kudo F, Miyanaga A, Eguchi T. Biosynthesis of natural products containing β-amino acids. Nat Prod Rep 2014; 31:1056-73. [DOI: 10.1039/c4np00007b] [Citation(s) in RCA: 155] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
β-Amino acids are unique components involved in a wide variety of natural products such as anticancer agents taxol, bleomycin, cytotoxic microcystin, enediyne compound C-1027 chromophore, nucleoside antibiotic blasticidin S, and macrolactam antibiotic vicenistatin. The biosynthesis and incorporation mechanisms are reviewed.
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Affiliation(s)
- Fumitaka Kudo
- Department of Chemistry
- Tokyo Institute of Technology
- Tokyo 152-8551, Japan
| | - Akimasa Miyanaga
- Department of Chemistry
- Tokyo Institute of Technology
- Tokyo 152-8551, Japan
| | - Tadashi Eguchi
- Department of Chemistry and Materials Science
- Tokyo Institute of Technology
- Tokyo 152-8551, Japan
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Amagai K, Takaku R, Kudo F, Eguchi T. A Unique Amino Transfer Mechanism for Constructing the β-Amino Fatty Acid Starter Unit in the Biosynthesis of the Macrolactam Antibiotic Cremimycin. Chembiochem 2013; 14:1998-2006. [DOI: 10.1002/cbic.201300370] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Indexed: 11/06/2022]
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Identification of the incednine biosynthetic gene cluster: characterization of novel β-glutamate-β-decarboxylase IdnL3. J Antibiot (Tokyo) 2013; 66:691-9. [DOI: 10.1038/ja.2013.76] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 06/11/2013] [Accepted: 06/21/2013] [Indexed: 12/18/2022]
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31
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Skellam EJ, Stewart AK, Strangman WK, Wright JLC. Identification of micromonolactam, a new polyene macrocyclic lactam from two marine Micromonospora strains using chemical and molecular methods: clarification of the biosynthetic pathway from a glutamate starter unit. J Antibiot (Tokyo) 2013; 66:431-41. [DOI: 10.1038/ja.2013.34] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Revised: 03/13/2013] [Accepted: 03/19/2013] [Indexed: 11/09/2022]
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Sugiyama R, Nishimura S, Kakeya H. Stereochemical reassignment of heronamide A, a polyketide macrolactam from Streptomyces sp. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.01.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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33
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Abbott JR, Roush WR. Stereoselective synthesis of the disaccharide unit of incednine. Org Lett 2012; 15:62-4. [PMID: 23249392 DOI: 10.1021/ol303093z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A stereoselective synthesis of a fully protected version of the disaccharide unit (2) of incednine (1) is described. The synthesis of 2 proceeds in 4.7% overall yield from commercially available allyl α-d-galactopyranoside over the longest linear sequence.
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Affiliation(s)
- Jason R Abbott
- Department of Chemistry, The Scripps Research Institute-Florida, 130 Scripps Way Jupiter, Florida 33458, USA
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35
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Zhou L, Li Z, Zou Y, Wang Q, Sanhueza IA, Schoenebeck F, Goeke A. Tandem Nucleophilic Addition/Oxy-2-azonia-Cope Rearrangement for the Formation of Homoallylic Amides and Lactams: Total Synthesis and Structural Verification of Motuporamine G. J Am Chem Soc 2012. [DOI: 10.1021/ja310002m] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Lijun Zhou
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433,
China
- Givaudan Fragrances (Shanghai) Ltd, 298 Li Shi Zhen Road, Shanghai 201203,
China
| | - Zhiming Li
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433,
China
| | - Yue Zou
- Givaudan Fragrances (Shanghai) Ltd, 298 Li Shi Zhen Road, Shanghai 201203,
China
| | - Quanrui Wang
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433,
China
| | - Italo A. Sanhueza
- Laboratory for Organic
Chemistry, ETH Zürich, Wolfgang-Pauli-Strasse
10, 8093
Zürich, Switzerland
| | - Franziska Schoenebeck
- Laboratory for Organic
Chemistry, ETH Zürich, Wolfgang-Pauli-Strasse
10, 8093
Zürich, Switzerland
| | - Andreas Goeke
- Givaudan Fragrances (Shanghai) Ltd, 298 Li Shi Zhen Road, Shanghai 201203,
China
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36
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Fukuda H, Nishiyama Y, Nakamura S, Ohno Y, Eguchi T, Iwabuchi Y, Usui T, Kanoh N. Synthesis and Structure-Activity Relationship of Vicenistatin, a Cytotoxic 20-Membered Macrolactam Glycoside. Chem Asian J 2012; 7:2872-81. [DOI: 10.1002/asia.201200615] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 08/14/2012] [Indexed: 11/11/2022]
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Takaishi M, Kudo F, Eguchi T. A Unique Pathway for the 3-Aminobutyrate Starter Unit from l-Glutamate through β-Glutamate during Biosynthesis of the 24-Membered Macrolactam Antibiotic, Incednine. Org Lett 2012; 14:4591-3. [DOI: 10.1021/ol302052c] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Makoto Takaishi
- Department of Chemistry and Materials Science and Department of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Fumitaka Kudo
- Department of Chemistry and Materials Science and Department of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Tadashi Eguchi
- Department of Chemistry and Materials Science and Department of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan
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38
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Affiliation(s)
- Alina Borovika
- a Department of Chemistry , University of Michigan , Ann Arbor , MI , 48109 , USA
| | - Pavel Nagorny
- a Department of Chemistry , University of Michigan , Ann Arbor , MI , 48109 , USA
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Silvalactam, a 24-membered macrolactam antibiotic produced by Streptomyces sp. Tü 6392. J Antibiot (Tokyo) 2012; 65:369-72. [DOI: 10.1038/ja.2012.33] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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40
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Kobayashi H, Harada H, Nakamura M, Futamura Y, Ito A, Yoshida M, Iemura SI, Shin-Ya K, Doi T, Takahashi T, Natsume T, Imoto M, Sakakibara Y. Comprehensive predictions of target proteins based on protein-chemical interaction using virtual screening and experimental verifications. BMC CHEMICAL BIOLOGY 2012; 12:2. [PMID: 22480302 PMCID: PMC3471015 DOI: 10.1186/1472-6769-12-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Accepted: 04/05/2012] [Indexed: 12/14/2022]
Abstract
Background Identification of the target proteins of bioactive compounds is critical for elucidating the mode of action; however, target identification has been difficult in general, mostly due to the low sensitivity of detection using affinity chromatography followed by CBB staining and MS/MS analysis. Results We applied our protocol of predicting target proteins combining in silico screening and experimental verification for incednine, which inhibits the anti-apoptotic function of Bcl-xL by an unknown mechanism. One hundred eighty-two target protein candidates were computationally predicted to bind to incednine by the statistical prediction method, and the predictions were verified by in vitro binding of incednine to seven proteins, whose expression can be confirmed in our cell system. As a result, 40% accuracy of the computational predictions was achieved successfully, and we newly found 3 incednine-binding proteins. Conclusions This study revealed that our proposed protocol of predicting target protein combining in silico screening and experimental verification is useful, and provides new insight into a strategy for identifying target proteins of small molecules.
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Affiliation(s)
- Hiroki Kobayashi
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Hiroko Harada
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Masaomi Nakamura
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Yushi Futamura
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Akihiro Ito
- Chemical Genetics Laboratory, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako-shi, Saitama, 351-0198, Japan
| | - Minoru Yoshida
- Chemical Genetics Laboratory, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako-shi, Saitama, 351-0198, Japan
| | - Shun-Ichiro Iemura
- National Institute of Advanced Industrial Science and Technology (AIST), 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Kazuo Shin-Ya
- National Institute of Advanced Industrial Science and Technology (AIST), 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Takayuki Doi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba, Sendai, 980-8578, Japan
| | - Takashi Takahashi
- Department of Applied Chemistry, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo, 152-8552, Japan
| | - Tohru Natsume
- National Institute of Advanced Industrial Science and Technology (AIST), 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Masaya Imoto
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Yasubumi Sakakibara
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
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41
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Suh YG, Lee YS, Kim SH, Jung JK, Yun H, Jang J, Kim NJ, Jung JW. A stereo-controlled access to functionalized macrolactams via an aza-Claisen rearrangement. Org Biomol Chem 2012; 10:561-8. [DOI: 10.1039/c1ob06733h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Ohtani T, Sakai S, Takada A, Takahashi D, Toshima K. Efficient and Stereoselective Synthesis of the Disaccharide Fragment of Incednine. Org Lett 2011; 13:6126-9. [DOI: 10.1021/ol202639v] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Takashi Ohtani
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Shohei Sakai
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Akira Takada
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Daisuke Takahashi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Kazunobu Toshima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
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43
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Zhou B, Li X, Li Y, Xu Y, Zhang Z, Zhou M, Zhang X, Liu Z, Zhou J, Cao C, Yu B, Wang R. Discovery and Development of Thiazolo[3,2-a]pyrimidinone Derivatives as General Inhibitors of Bcl-2 Family Proteins. ChemMedChem 2011; 6:904-21. [DOI: 10.1002/cmdc.201000484] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2010] [Indexed: 02/06/2023]
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44
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Ohtani T, Tsukamoto S, Kanda H, Misawa K, Urakawa Y, Fujimaki T, Imoto M, Takahashi Y, Takahashi D, Toshima K. Total Synthesis of Incednam, the Aglycon of Incednine. Org Lett 2010; 12:5068-71. [DOI: 10.1021/ol102400c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takashi Ohtani
- Department of Applied Chemistry and Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan, and Institute of Microbial Chemistry, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Shinya Tsukamoto
- Department of Applied Chemistry and Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan, and Institute of Microbial Chemistry, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Hiroshi Kanda
- Department of Applied Chemistry and Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan, and Institute of Microbial Chemistry, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Kensuke Misawa
- Department of Applied Chemistry and Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan, and Institute of Microbial Chemistry, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Yoshifumi Urakawa
- Department of Applied Chemistry and Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan, and Institute of Microbial Chemistry, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Takahiro Fujimaki
- Department of Applied Chemistry and Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan, and Institute of Microbial Chemistry, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masaya Imoto
- Department of Applied Chemistry and Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan, and Institute of Microbial Chemistry, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Yoshikazu Takahashi
- Department of Applied Chemistry and Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan, and Institute of Microbial Chemistry, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Daisuke Takahashi
- Department of Applied Chemistry and Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan, and Institute of Microbial Chemistry, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Kazunobu Toshima
- Department of Applied Chemistry and Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan, and Institute of Microbial Chemistry, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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Ghosh P, Cusick JR, Inghrim J, Williams LJ. Silyl-substituted spirodiepoxides: stereoselective formation and regioselective opening. Org Lett 2009; 11:4672-5. [PMID: 19810767 PMCID: PMC3047402 DOI: 10.1021/ol901948d] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A short synthesis of the natural product epi-citreodiol and the method developed to gain access to this target are described. Key advances focus on silyl substituted allenes. Upon exposure to dimethyldioxirane, spirodiepoxides form with high face selectivity and subsequently react at the silyl terminus.
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Affiliation(s)
| | | | - Jennifer Inghrim
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903
| | - Lawrence J. Williams
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903
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Jørgensen H, Degnes KF, Sletta H, Fjærvik E, Dikiy A, Herfindal L, Bruheim P, Klinkenberg G, Bredholt H, Nygård G, Døskeland SO, Ellingsen TE, Zotchev SB. Biosynthesis of Macrolactam BE-14106 Involves Two Distinct PKS Systems and Amino Acid Processing Enzymes for Generation of the Aminoacyl Starter Unit. ACTA ACUST UNITED AC 2009; 16:1109-21. [DOI: 10.1016/j.chembiol.2009.09.014] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Revised: 09/15/2009] [Accepted: 09/18/2009] [Indexed: 10/20/2022]
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Litaudon M, Jolly C, Le Callonec C, Cuong DD, Retailleau P, Nosjean O, Nguyen VH, Pfeiffer B, Boutin JA, Guéritte F. Cytotoxic pentacyclic triterpenoids from Combretum sundaicum and Lantana camara as inhibitors of Bcl-xL/BakBH3 domain peptide interaction. JOURNAL OF NATURAL PRODUCTS 2009; 72:1314-1320. [PMID: 19572612 DOI: 10.1021/np900192r] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In an effort to discover potent inhibitors of the antiapoptotic protein Bcl-xL, a systematic in vitro evaluation was undertaken on extracts prepared from various parts of Vietnamese plants. The ethyl acetate extracts obtained from the leaves and flowers of Combretum sundaicum and the leaves of Lantana camara were selected for their interaction with the Bcl-xL/Bak association. Bioassay-guided purification of these species led to the isolation of 15 pentacyclic triterpenoids (1-15) possessing olean-12-en-28-oic acid and olean-12-en-29-oic acid aglycons, of which compounds 1-6 and 8-10 are new. Five compounds exhibited binding activity with K(i) values between 5.3 and 17.8 microM. The cytotoxic activity of 1-15 was also evaluated on various cancer cell lines.
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Affiliation(s)
- Marc Litaudon
- Institut de Chimie des Substances Naturelles, UPR2301, CNRS, 91198 Gif-sur-Yvette, France.
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Sasazawa Y, Futamura Y, Tashiro E, Imoto M. Vacuolar H+-ATPase inhibitors overcome Bcl-xL-mediated chemoresistance through restoration of a caspase-independent apoptotic pathway. Cancer Sci 2009; 100:1460-7. [PMID: 19459857 DOI: 10.1111/j.1349-7006.2009.01194.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
The anti-apoptotic oncoproteins Bcl-2 and Bcl-xL play crucial roles in tumorigenesis and chemoresistance, and are thus therapeutic cancer targets. We searched for small molecules that disturbed the anti-apoptotic function of Bcl-2 or Bcl-xL, and found vacuolar H(+)-ATPase (V-ATPase) inhibitors, such as bafilomycin A1 (BMA), that showed such activity. Bcl-xL-overexpressing Ms-1 cells displayed resistance to anticancer drugs, but underwent apoptosis following treatment with a combination of V-ATPase inhibitors at doses similar to those that caused inhibitory activities of V-ATPase. We investigated the apoptosis mechanism induced by cotreatment of Bcl-xL-overexpressing Ms-1 cells with BMA as a V-ATPase inhibitor and taxol (TXL) as an anticancer drug. With BMA, TXL triggered mitochondrial membrane potential loss and cytochrome c release, whereas downstream caspase activation was not observed. In contrast, pronounced nuclear translocation of mitochondrial apoptosis-inducing factor and endonuclease G, known as effectors of caspase-independent apoptosis, was observed with BMA and TXL cotreatment. Moreover, depletion of apoptosis-inducing factor and endonuclease G using each siRNA significantly rescued cells from BMA- and TXL-induced apoptosis. Hence, the apoptosis-inducing factor- and endonuclease G-dependent pathway was critical for apoptosis induction by BMA and TXL cotreatment. Our data suggest that V-ATPase inhibitors could not only suppress anti-apoptotic Bcl-2 nor Bcl-xL but could also facilitate the caspase-independent apoptotic pathway. V-ATPase inhibition will be a promising therapeutic approach for Bcl-2- or Bcl-xL-overexpressing malignancies.
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Affiliation(s)
- Yukiko Sasazawa
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, Yokohama, Japan
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49
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Ohtani T, Kanda H, Misawa K, Urakawa Y, Toshima K. Synthetic studies of incednine: synthesis of C1–C13 pentaenoic acid segment. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.02.203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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50
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Rossi M, Bang JK, Mazur S, Iera JA, Phillips DC, Zambetti GP, Appella DH. Induction of apoptosis promoted by Bang52; a small molecule that downregulates Bcl-x(L). Bioorg Med Chem Lett 2009; 19:2429-34. [PMID: 19349174 DOI: 10.1016/j.bmcl.2009.03.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2009] [Accepted: 03/17/2009] [Indexed: 11/26/2022]
Abstract
Cancer cells evade death by over-producing specific proteins that inhibit apoptosis. One such group of proteins is the Bcl-2 family, of which Bcl-x(L) is an important member. This protein binds and inhibits BAK, another protein that promotes apoptosis. While the development of chemical inhibitors that block Bcl-x(L)-BAK association have been the focus of intense research efforts, we demonstrate in this manuscript an alternative strategy to downregulate Bcl-x(L). We have identified a small molecule (Bang52) that induces apoptosis in a lymphoblast-derived cell line by lowering levels of Bcl-x(L). Since Bang52 bears no resemblance to any chemical binder of Bcl-x(L) we believe that degradation of the protein is stimulated by a new type of pathway. These findings highlight a novel approach to the development of small molecules that promote apoptosis.
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Affiliation(s)
- Matteo Rossi
- Laboratory of Cell Biology, NCI, NIH, Bethesda, MD 20892, USA
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