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Kou P, Yu Y, Wang H, Zhang Y, Jin Z, Yu F. An Integrated Strategy Based on 10-DAB Extraction and In Situ Whole-Cell Biotransformation of Renewable Taxus Needles to Produce Baccatin III. Molecules 2024; 29:2586. [PMID: 38893462 PMCID: PMC11173793 DOI: 10.3390/molecules29112586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 05/19/2024] [Accepted: 05/27/2024] [Indexed: 06/21/2024] Open
Abstract
Baccatin III is a crucial precursor in the biosynthesis pathway of paclitaxel. Its main sources are extraction from Taxus or chemical synthesis using 10-deacetylbaccatin III (10-DAB) as substrate. However, these preparation approaches exhibit serious limitations, including the low content of baccatin III in Taxus and the complicated steps of chemical synthesis. Heterologous expression of 10-deacetylbaccatin III-10-O-acetyltransferase (TcDBAT) in microbial strains for biotransformation of 10-DAB is a promising alternative strategy for baccatin III production. Here, the promotion effects of glycerol supply and slightly acidic conditions with a low-temperature on the catalysis of recombinant TcDBAT strain were clarified using 10-DAB as substrate. Taxus needles is renewable and the content of 10-DAB is relatively high, it can be used as an effective source of the catalytic substrate 10-DAB. Baccatin III was synthesized by integrating the extraction of 10-DAB from renewable Taxus needles and in situ whole-cell catalysis in this study. 40 g/L needles were converted into 20.66 mg/L baccatin III by optimizing and establishing a whole-cell catalytic bioprocess. The method used in this study can shorten the production process of Taxus extraction for baccatin III synthesis and provide a reliable strategy for the efficient production of baccatin III by recombinant strains and the improvement of resource utilization rate of Taxus needles.
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Affiliation(s)
| | | | | | | | | | - Fang Yu
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China
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Huang JJ, Wei T, Ye ZW, Zheng QW, Jiang BH, Han WF, Ye AQ, Han PY, Guo LQ, Lin JF. Microbial Cell Factory of Baccatin III Preparation in Escherichia coli by Increasing DBAT Thermostability and in vivo Acetyl-CoA Supply. Front Microbiol 2022; 12:803490. [PMID: 35095813 PMCID: PMC8790024 DOI: 10.3389/fmicb.2021.803490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/09/2021] [Indexed: 12/04/2022] Open
Abstract
Given the rapid development of genome mining in this decade, the substrate channel of paclitaxel might be identified in the near future. A robust microbial cell factory with gene dbat, encoding a key rate-limiting enzyme 10-deacetylbaccatin III-10-O-transferase (DBAT) in paclitaxel biosynthesis to synthesize the precursor baccatin III, will lay out a promising foundation for paclitaxel de novo synthesis. Here, we integrated gene dbat into the wild-type Escherichia coli BW25113 to construct strain BWD01. Yet, it was relatively unstable in baccatin III synthesis. Mutant gene dbat S189V with improved thermostability was screened out from a semi-rational mutation library of DBAT. When it was over-expressed in an engineered strain N05 with improved acetyl-CoA generation, combined with carbon source optimization of fermentation engineering, the production level of baccatin III was significantly increased. Using this combination, integrated strain N05S01 with mutant dbat S189V achieved a 10.50-fold increase in baccatin III production compared with original strain BWD01. Our findings suggest that the combination of protein engineering and metabolic engineering will become a promising strategy for paclitaxel production.
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Affiliation(s)
- Jia-jun Huang
- Department of Bioengineering, College of Food Science, Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - Tao Wei
- Department of Bioengineering, College of Food Science, Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - Zhi-wei Ye
- Department of Bioengineering, College of Food Science, Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - Qian-wang Zheng
- Department of Bioengineering, College of Food Science, Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - Bing-hua Jiang
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Wen-feng Han
- Department of Bioengineering, College of Food Science, Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - An-qi Ye
- Department of Bioengineering, College of Food Science, Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - Pei-yun Han
- Department of Bioengineering, College of Food Science, Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - Li-qiong Guo
- Department of Bioengineering, College of Food Science, Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - Jun-fang Lin
- Department of Bioengineering, College of Food Science, Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
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3
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Evaluation of the anticancer activity of enzymatically synthesized Baccatin III: an intermediate precursor of Taxol®. 3 Biotech 2020; 10:465. [PMID: 33088661 DOI: 10.1007/s13205-020-02457-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 09/27/2020] [Indexed: 01/05/2023] Open
Abstract
Baccatin III is an important precursor for the synthesis of clinically important anticancer drug Taxol. Previously, we have characterized a key enzyme of 10-deacetylbaccatin III-10-β-O-acetyltransferase (DBAT) which catalyses the 10-deacetylbaccatin III into baccatin III in taxol biosynthesis. Here, in the present study, we have evaluated and compared the cytotoxic properties of the enzymatically synthesized baccatin III (ESB III) with standard baccatin III in different human cancer cell lines, namely human cervical cancer (HeLa), human lung cancer (A549), human skin cancer (A431) and human liver cancer cells (HepG2). Among the various cancer lines tested, HeLa was more susceptible to ESB III with IC50 of 4.30 µM while IC50 values for A549, A431 and HepG2 ranged from 4 to 7.81 µM. Further, it showed G2/M phase cell cycle arrest, production of reactive oxygen species and depolarised mitochondrial membrane potential. In addition, annexin V-FITC staining was performed which showed the apoptotic cell death of HeLa cells, when treated with ESB III. Hence, ESB III was capable to show anticancer activities by inducing apoptotic cell death which could further be used for the semisynthesis of taxol in future.
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Huang JJ, Wei T, Lin JF, Guo LQ, Han WF, Han PY, Ye AQ. High-effective biosynthesis of baccatin Ⅲ by using the alternative acetyl substrate, N-acetyl-d-glucosamine. J Appl Microbiol 2020; 129:345-355. [PMID: 32091657 DOI: 10.1111/jam.14620] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 02/11/2020] [Accepted: 02/17/2020] [Indexed: 12/25/2022]
Abstract
AIMS Paclitaxel is a type of broad-spectrum anticancer drug in short supply. The price of acetyl-CoA (17 709 677·4 USD mol-1 ), which is the acetyl group donor for the enzymatic synthesis of the intermediate, baccatin Ⅲ, is still the bottleneck of the mass production of paclitaxel. This study reports a novel acetyl group donor, which could substantially reduce the cost of production. METHODS AND RESULTS In this study, a substrate spectrum with 14 kinds of representative acetyl-donor substitutes predicted by computer-aided methods was tested in a 10-deacetylbaccatin Ⅲ-10-O-acetyltransferase (DBAT) heterogeneous-expressed open-whole-cell catalytic system. The results of computer prediction and experimental analysis revealed the rule of the acetyl-donor compounds based on this substrate spectrum. N-acetyl-d-glucosamine (30·95 USD mol-1 , about 572 202-fold cheaper than acetyl-CoA) is selected as a suitable substitute under the rule. The yield when using N-acetyl-d-glucosamine as acetyl donor in open-whole-cell catalytic system was 2·13-fold of that when using acetyl-CoA. In the in vivo system, the yield increased 24·17%, which may indicate its cooperation with acetyl-CoA. CONCLUSION The success of open-whole-cell synthesis and in vivo synthesis of baccatin Ⅲ by adding N-acetyl-d-glucosamine as acetyl substrate demonstrates that it is a useful substrate to improve the yield of baccatin Ⅲ. SIGNIFICANCE AND IMPACT OF THE STUDY All these findings provided a potential acetyl-donor substitute for acetyl-CoA, as well as a low cost and efficient method of preparing paclitaxel through baccatin Ⅲ semi-synthesis.
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Affiliation(s)
- J-J Huang
- Department of Bioengineering, College of Food Science and Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China.,Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - T Wei
- Department of Bioengineering, College of Food Science and Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China.,Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - J-F Lin
- Department of Bioengineering, College of Food Science and Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China.,Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - L-Q Guo
- Department of Bioengineering, College of Food Science and Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China.,Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - W-F Han
- Department of Bioengineering, College of Food Science and Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China.,Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - P-Y Han
- Department of Bioengineering, College of Food Science and Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China.,Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - A-Q Ye
- Department of Bioengineering, College of Food Science and Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China.,Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
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You LF, Wei T, Zheng QW, Jiang BH, Lin JF, Guo LQ. Optimization of Baccatin III Production by Cross-Linked Enzyme Aggregate of Taxoid 10β-O-Acetyltransferase. Mol Biotechnol 2019; 61:498-505. [DOI: 10.1007/s12033-019-00179-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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You LF, Huang JJ, Lin SL, Wei T, Zheng QW, Jiang BH, Lin JF, Guo LQ. In vitro enzymatic synthesis of baccatin III with novel and cheap acetyl donors by the recombinant taxoid 10β-O-acetyl transferase. BIOCATAL BIOTRANSFOR 2019. [DOI: 10.1080/10242422.2018.1549235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Lin-Feng You
- College of Food Science & Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
- Chongqing Key Laboratory of Catalysis and Functional Organic Molecule, Chongqing Technology and Business University, Chongqing, China
| | - Jia-Jun Huang
- College of Food Science & Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
| | - Shu-Ling Lin
- College of Food Science & Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
| | - Tao Wei
- College of Food Science & Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - Qian-Wang Zheng
- College of Food Science & Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - Bing-Hua Jiang
- Department of Pathology Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jun-Fang Lin
- College of Food Science & Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
| | - Li-Qiong Guo
- College of Food Science & Institute of Food Biotechnology, South China Agricultural University, Guangzhou, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, China
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Enhanced catalytic activities and modified substrate preferences for taxoid 10β-O-acetyl transferase mutants by engineering catalytic histidine residues. Biotechnol Lett 2018; 40:1245-1251. [PMID: 29869304 DOI: 10.1007/s10529-018-2573-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 05/18/2018] [Indexed: 12/14/2022]
Abstract
OBJECTIVES Taxoid 10β-O-acetyl transferase (DBAT) was redesigned to enhance its catalytic activity and substrate preference for baccatin III and taxol biosynthesis. RESULTS Residues H162, D166 and R363 were determined as potential sites within the catalytic pocket of DBAT for molecular docking and site-directed mutagenesis to modify the activity of DBAT. Enzymatic activity assays revealed that the kcat/KM values of mutant H162A/R363H, D166H, R363H, D166H/R363H acting on 10-deacetylbaccatin III were about 3, 15, 26 and 60 times higher than that of the wild type of DBAT, respectively. Substrate preference assays indicated that these mutants (H162A/R363H, D166H, R363H, D166H/R363H) could transfer acetyl group from unnatural acetyl donor (e.g. vinyl acetate, sec-butyl acetate, isobutyl acetate, amyl acetate and isoamyl acetate) to 10-deacetylbaccatin III. CONCLUSION Taxoid 10β-O-acetyl transferase mutants with redesigned active sites displayed increased catalytic activities and modified substrate preferences, indicating their possible application in the enzymatic synthesis of baccatin III and taxol.
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You LF, Wei T, Zheng QW, Lin JF, Guo LQ, Jiang BH, Huang JJ. Activity Essential Residue Analysis of Taxoid 10β-O-Acetyl Transferase for Enzymatic Synthesis of Baccatin. Appl Biochem Biotechnol 2018; 186:949-959. [PMID: 29797298 DOI: 10.1007/s12010-018-2789-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 05/15/2018] [Indexed: 12/31/2022]
Abstract
Taxoid 10β-O-acetyl transferase (DBAT) is a key enzyme in the biosynthesis of the famous anticancer drug paclitaxel, which catalyses the formation of baccatin III from 10-deacetylbaccatin III (10-DAB). However, the activity essential residues of the enzyme are still unknown, and the acylation mechanism from its natural substrate 10-deacetylbaccatin III and acetyl CoA to baccatin III remains unclear. In this study, the homology modelling, molecular docking, site-directed mutagenesis, and kinetic parameter determination of the enzyme were carried out. The results showed that the enzyme mutant DBATH162A resulted in complete loss of enzymatic activity, suggesting that the residue histidine at 162 was essential to DBAT activity. Residues D166 and R363 which were located in the pocket of the enzyme by homology modelling and molecular docking were also important for DBAT activity through the site-directed mutations. Furthermore, four amino acid residues including S31 and D34 from motif SXXD, D372 and G376 from motif DFGWG also played important roles on acylation. This was the first report of the elucidation of the activity essential residues of DBAT, making it possible for the further structural-based re-design of the enzyme for efficient biotransformation of baccatin III and paclitaxel.
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Affiliation(s)
- Lin-Feng You
- College of Food Science & Institute of Food Biotechnology, South China Agricultural University, 483 Wu-Shan Road, Tian-He District, Guangzhou, 510640, Guangdong, China
- Chongqing Key Laboratory of Catalysis and Functional Organic Molecule, Chongqing Technology and Business University, Chongqing, 400067, China
| | - Tao Wei
- College of Food Science & Institute of Food Biotechnology, South China Agricultural University, 483 Wu-Shan Road, Tian-He District, Guangzhou, 510640, Guangdong, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, 510640, Guangdong, China
| | - Qian-Wang Zheng
- College of Food Science & Institute of Food Biotechnology, South China Agricultural University, 483 Wu-Shan Road, Tian-He District, Guangzhou, 510640, Guangdong, China
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, 510640, Guangdong, China
| | - Jun-Fang Lin
- College of Food Science & Institute of Food Biotechnology, South China Agricultural University, 483 Wu-Shan Road, Tian-He District, Guangzhou, 510640, Guangdong, China.
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, 510640, Guangdong, China.
| | - Li-Qiong Guo
- College of Food Science & Institute of Food Biotechnology, South China Agricultural University, 483 Wu-Shan Road, Tian-He District, Guangzhou, 510640, Guangdong, China.
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou, 510640, Guangdong, China.
| | - Bing-Hua Jiang
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Jia-Jun Huang
- College of Food Science & Institute of Food Biotechnology, South China Agricultural University, 483 Wu-Shan Road, Tian-He District, Guangzhou, 510640, Guangdong, China
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Bio-production of Baccatin III, an Important Precursor of Paclitaxel by a Cost-Effective Approach. Mol Biotechnol 2018; 60:492-505. [DOI: 10.1007/s12033-018-0090-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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10
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Janicki M, Lozynski M. Toward ab initio potential energy surface for paclitaxel: a baccatin III conformational study. J PHYS ORG CHEM 2017. [DOI: 10.1002/poc.3598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Maciej Janicki
- Adam Mickiewicz University; Faculty of Biology, Institute of Molecular Biology and Biotechnology; 61-614 Poznan Poland
| | - Marek Lozynski
- Poznan University of Technology; Faculty of Chemical Technology, Institute of Chemical Technology and Engineering; 60-965 Poznan Poland
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Liu SW, Chang XD, Song ZZ. Study on F
lammulina Velutipes
Ready-to-Eat Snacks Prepared by Microwave Vacuum Osmotic Dehydration Combined with Hot-Air Drying. J FOOD PROCESS ENG 2015. [DOI: 10.1111/jfpe.12228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Su-Wen Liu
- Department of Food Science and Technology; Hebei Normal University of Science and Technology; Qinhuangdao Hebei Province 066004 China
| | - Xue-Dong Chang
- Department of Food Science and Technology; Hebei Normal University of Science and Technology; Qinhuangdao Hebei Province 066004 China
| | - Zi-Zi Song
- Department of Food Science and Technology; Hebei Normal University of Science and Technology; Qinhuangdao Hebei Province 066004 China
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