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Yu Y, Wang H, Tang B, Liang J, Zhang L, Wang H, Bian X, Li YZ, Zhang Y, Zhao GP, Ding X. Reassembly of the Biosynthetic Gene Cluster Enables High Epothilone Yield in Engineered Schlegelella brevitalea. ACS Synth Biol 2020; 9:2009-2022. [PMID: 32603592 DOI: 10.1021/acssynbio.0c00100] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Epothilones, as a new class of microtubule-stabilizing anticancer drugs, exhibit strong bioactivity against taxane-resistant cells and show clinical activity for the treatment of advanced breast cancer. Additionally, they also show great potential for a central nervous system injury and Alzheimer's disease. However, due to the long fermentation period of the original producer and challenges of genetic engineering of nonribosomal peptide/polyketide (NRP/PK) megasynthase genes, the application of epothilones is severely limited. Here, we addressed these problems by reassembling a novel 56-kb epothilone biosynthetic gene cluster, optimizing the promoter of each gene based on RNA-seq profiling, and completing precursor synthetic pathways in engineered Schlegella brevitalea. Furthermore, we debottlenecked the cell autolysis by optimizing culture conditions. Finally, the yield of epothilones in shake flasks was improved to 82 mg/L in six-day fermentation. Overall, we not only constructed epothilone overproducers for further drug development but also provided a rational strategy for high-level NRP/PK compound production.
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Affiliation(s)
- Yucong Yu
- Collaborative Innovation Center for Genetics and Development, State Key Laboratory of Genetic Engineering, Department of Microbiology, School of Life Sciences, Fudan University, Shanghai, 200438, People’s Republic of China
| | - Huimin Wang
- Collaborative Innovation Center for Genetics and Development, State Key Laboratory of Genetic Engineering, Department of Microbiology, School of Life Sciences, Fudan University, Shanghai, 200438, People’s Republic of China
| | - Biao Tang
- Collaborative Innovation Center for Genetics and Development, State Key Laboratory of Genetic Engineering, Department of Microbiology, School of Life Sciences, Fudan University, Shanghai, 200438, People’s Republic of China
- Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People’s Republic of China
| | - Junheng Liang
- Collaborative Innovation Center for Genetics and Development, State Key Laboratory of Genetic Engineering, Department of Microbiology, School of Life Sciences, Fudan University, Shanghai, 200438, People’s Republic of China
| | - Lin Zhang
- Collaborative Innovation Center for Genetics and Development, State Key Laboratory of Genetic Engineering, Department of Microbiology, School of Life Sciences, Fudan University, Shanghai, 200438, People’s Republic of China
| | - Hongkuan Wang
- State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Biodiversity Sciences and Ecological Engineering, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, People’s Republic of China
| | - Xiaoying Bian
- Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, School of Life Sciences, Shandong University, Qingdao, Shandong 266237, People’s Republic of China
| | - Yue-zhong Li
- Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, School of Life Sciences, Shandong University, Qingdao, Shandong 266237, People’s Republic of China
| | - Youming Zhang
- Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, School of Life Sciences, Shandong University, Qingdao, Shandong 266237, People’s Republic of China
| | - Guo-ping Zhao
- Collaborative Innovation Center for Genetics and Development, State Key Laboratory of Genetic Engineering, Department of Microbiology, School of Life Sciences, Fudan University, Shanghai, 200438, People’s Republic of China
- CAS Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200032, People’s Republic of China
| | - Xiaoming Ding
- Collaborative Innovation Center for Genetics and Development, State Key Laboratory of Genetic Engineering, Department of Microbiology, School of Life Sciences, Fudan University, Shanghai, 200438, People’s Republic of China
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Stankovic N, Senerovic L, Bojic-Trbojevic Z, Vuckovic I, Vicovac L, Vasiljevic B, Nikodinovic-Runic J. Didehydroroflamycoin pentaene macrolide family from Streptomyces durmitorensis
MS405T
: production optimization and antimicrobial activity. J Appl Microbiol 2013; 115:1297-306. [DOI: 10.1111/jam.12326] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 08/06/2013] [Accepted: 08/06/2013] [Indexed: 11/27/2022]
Affiliation(s)
- N. Stankovic
- Institute of Molecular Genetics and Genetic Engineering; University of Belgrade; Belgrade Serbia
| | - L. Senerovic
- Institute of Molecular Genetics and Genetic Engineering; University of Belgrade; Belgrade Serbia
| | - Z. Bojic-Trbojevic
- Institute for Application of Nuclear Energy (INEP); University of Belgrade; Belgrade Serbia
| | - I. Vuckovic
- Faculty of Chemistry; University of Belgrade; Belgrade Serbia
| | - L. Vicovac
- Institute for Application of Nuclear Energy (INEP); University of Belgrade; Belgrade Serbia
| | - B. Vasiljevic
- Institute of Molecular Genetics and Genetic Engineering; University of Belgrade; Belgrade Serbia
| | - J. Nikodinovic-Runic
- Institute of Molecular Genetics and Genetic Engineering; University of Belgrade; Belgrade Serbia
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Use of in situ solid-phase adsorption in microbial natural product fermentation development. J Ind Microbiol Biotechnol 2013; 40:411-25. [PMID: 23526181 DOI: 10.1007/s10295-013-1247-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 02/18/2013] [Indexed: 10/27/2022]
Abstract
It has been half a century since investigators first began experimenting with adding ion exchange resins during the fermentation of microbial natural products. With the development of nonionic polymeric adsorbents in the 1970s, the application of in situ product adsorption in bioprocessing has grown slowly, but steadily. To date, in situ product adsorption strategies have been used in biotransformations, plant cell culture, the production of biofuels, and selected bulk chemicals, such as butanol and lactic acid, as well as in more traditional natural product fermentation within the pharmaceutical industry. Apart from the operational gains in efficiency from the integration of fermentation and primary recovery, the addition of adsorbents during fermentation has repeatedly demonstrated the capacity to significantly increase titers by sequestering the product and preventing or mitigating degradation, feedback inhibition and/or cytotoxic effects. Adoption of in situ product adsorption has been particularly valuable in the early stages of natural product-based drug discovery programs, where quickly and cost-effectively generating multigram quantities of a lead compound can be challenging when using a wild-type strain and fermentation conditions that have not been optimized. While much of the literature involving in situ adsorption describes its application early in the drug development process, this does not imply that the potential for scale-up is limited. To date, commercial-scale processes utilizing in situ product adsorption have reached batch sizes of at least 30,000 l. Here we present examples where in situ product adsorption has been used to improve product titers or alter the ratios among biosynthetically related natural products, examine some of the relevant variables to consider, and discuss the mechanisms by which in situ adsorption may impact the biosynthesis of microbial natural products.
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Stankovic N, Radulovic V, Petkovic M, Vuckovic I, Jadranin M, Vasiljevic B, Nikodinovic-Runic J. Streptomyces sp. JS520 produces exceptionally high quantities of undecylprodigiosin with antibacterial, antioxidative, and UV-protective properties. Appl Microbiol Biotechnol 2012; 96:1217-31. [PMID: 22767180 DOI: 10.1007/s00253-012-4237-3] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 05/14/2012] [Accepted: 06/11/2012] [Indexed: 12/18/2022]
Abstract
A Gram-positive, red-pigment-producing bacterial strain, designated JS520 was isolated from the pristine sediment from the cave on mountain Miroc in Serbia. Strain was confirmed to belong to Streptomyces genus based on phenotypic and genetic analysis. Streptomyces sp. JS520 has the ability to produce exceptionally high amounts of deep red pigment into both solid and liquid media. Liquid chromatography and mass spectroscopy of the purified pigments revealed the major component to be undecylprodigiosin (93 %) with minor component being oxidatively cyclized derivative. The pigment production was affected by medium composition, temperature, pH, and the aeration rate. By medium optimization, yields of undecylprodigiosin of 138 mg l(-1) were achieved, what is the highest level of undecylprodigiosin production reported for the members of Gram-positive Streptomyces genus. Purified pigment had antimicrobial properties against bacterial Bacillus and Micrococcus species (50 μg ml(-1)) and against Candida albicans species (100-200 μg ml(-1) range). The ability to affect auto-oxidation of the linoleic acid was demonstrated for the purified undecylprodigiosin, suggesting antioxidative properties of this pigment. Multiple ecophysiological roles of the pigment were revealed by comparing cultures grown under pigment-producing and pigment-nonproducing conditions. Cells grown under undecylprodigiosin-producing conditions could tolerate presence of hydrogen peroxide exhibiting three times smaller zones of inhibition at 100 mM H(2)O(2). Undecylprodigiosin-producing cells were also less susceptible to tetracycline, kanamycin, chloramphenicol, and 8-hydroxyquinoline. While the growth of the cells not producing pigment was completely inhibited by 15 min of exposure to ultraviolet light (254 nm), cells producing undecylprodigiosin and cells supplied with purified pigment in vitro showed survival rates at 22 and 8 %, respectively.
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Affiliation(s)
- Nada Stankovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, P.O. Box 23, 11000, Belgrade, Serbia
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Altmann KH, Memmert K. Epothilones as lead structures for new anticancer drugs--pharmacology, fermentation, and structure-activity-relationships. PROGRESS IN DRUG RESEARCH. FORTSCHRITTE DER ARZNEIMITTELFORSCHUNG. PROGRES DES RECHERCHES PHARMACEUTIQUES 2008; 66:273, 275-334. [PMID: 18416309 DOI: 10.1007/978-3-7643-8595-8_6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Epothilones (Epo's) A and B are naturally occurring microtubule-stabilizers, which inhibit the growth of human cancer cells in vitro at low nM or sub-nM concentrations. In contrast to taxol (paclitaxel, Taxol) epothilones are also active against different types of multidrug-resistant cancer cell lines in vitro and against multidrug-resistant tumors in vivo. Their attractive preclinical profile has made epothilones important lead structures in the search for improved cytotoxic anticancer drugs and Epo B (EPO906, patupilone) is currently undergoing Phase III clinical trials. Numerous synthetic and semisynthetic analogs have been prepared since the absolute stereochemistry of epothilones was first disclosed in mid-1996 and their in vitro biological activity has been determined. Apart from generating a wealth of SAR information, these efforts have led to the identification of at least six compounds (in addition to Epo B), which are currently at various stages of clinical evaluation in humans. The most advanced of these compounds, Epo B lactam BMS-247550 (ixabepilone), has recently obtained FDA approval for the treatment of metastatic and advanced breast cancer. This chapter will first provide a summary of the basic features of the biological profile of Epo B in vitro and in vivo. This will be followed by a review of the processes that have been developed for the fermentative production of Epo B. The main part of the chapter will focus on the most relevant aspects of the epothilone SAR with regard to effects on tubulin polymerization, in vitro antiproliferative activity, and in vivo antitumor activity. Particular emphasis will be placed on work conducted in the authors' own laboratories, but data from other groups will also be included. In a final section, the current status of those epothilone analogs undergoing clinical development will be briefly discussed.
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Affiliation(s)
- Karl-Heinz Altmann
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, Swiss Federal Institute of Technology (ETH) Zürich, Switzerland.
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Gong GL, Sun X, Liu XL, Hu W, Cao WR, Liu H, Liu WF, Li YZ. Mutation and a high-throughput screening method for improving the production of Epothilones of Sorangium. J Ind Microbiol Biotechnol 2007; 34:615-23. [PMID: 17647035 DOI: 10.1007/s10295-007-0236-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2007] [Accepted: 06/03/2007] [Indexed: 10/23/2022]
Abstract
The epothilones are highly promising prospective anticancer agents that are produced by the myxobacterium Sorangium cellulosum. We mutated the epothilone producing S. cellulosum strain So0157-2 to improve the production of epothilones. For evaluation in high-throughput of a large number of mutants, we developed a simple microtiter method for primary screening. Using the classical UV-mutation method plus selection pressures, the production capacity was increased about 0.5 approximately 2.5 times the starting strain. The mutants with higher production and different phenotypes were further subjected to recursive protoplast fusions and the fusants products were screened under multi-selection pressure. Furthermore, the production was greatly increased by the genome shuffling. For epothilone B, the production of one fusant was increased about 130 times compared to the starting strain, increasing from 0.8 mg l(-1) to 104 mg l(-1).
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Affiliation(s)
- Guo-li Gong
- State Key Libratory of Microbial Technology, College of Life Science, Shan Dong University, Jinan 250100, People's Republic of China
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