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de Andrade B, Renard G, Gennari A, Artico LL, Júnior JR, Kuhn D, Salles PPZ, Volken de Souza CF, Roth G, Chies JM, Yunes JA, Basso LA. Production Process Optimization of Recombinant Erwinia carotovoral-Asparaginase II in Escherichia coli Fed-Batch Cultures and Analysis of Antileukemic Potential. ACS OMEGA 2024; 9:34951-34963. [PMID: 39157126 PMCID: PMC11325515 DOI: 10.1021/acsomega.4c04711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 07/17/2024] [Accepted: 07/24/2024] [Indexed: 08/20/2024]
Abstract
The aims of this work were to optimize the production of Erwinia carotovoral-asparaginase II enzyme in Escherichia coli by different fed-batch cultivation strategies using a benchtop bioreactor and to evaluate the therapeutic potential of the recombinant enzyme against different acute lymphoblastic leukemia cell lines. The highest enzyme activities (∼98,000 U/L) were obtained in cultures using the DO-stat feeding strategy with induction in 18 h of culture. Under these experimental conditions, the maximum values for recombinant l-asparaginase II (rASNase) yield per substrate, rASNase yield per biomass, and productivity were approximately 1204 U/gglucose, 3660 U/gcells, and 3260 U/(L·h), respectively. This condition was efficient for achieving high yields of the recombinant enzyme, which was purified and used in in vitro antileukemic potential tests. Of all the leukemic cell lines tested, RS4;11 showed the highest sensitivity to rASNase, with an IC50 value of approximately 0.0006 U/mL and more than 70% apoptotic cells. The study demonstrated that the cultivation strategies used were efficient for obtaining high yield and productivity of rASNase with therapeutic potential inasmuch as cytotoxic activity and induction of apoptosis were demonstrated for this protein.
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Affiliation(s)
- Bruna
Coelho de Andrade
- National
Institute of Science and Technology in Tuberculosis, Research Center
for Molecular and Functional Biology, Pontifical
Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 90619-900, Brazil
- Graduate
Program in Medicine and Health Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande
do Sul 90619-900, Brazil
| | - Gaby Renard
- Quatro
G Pesquisa & Desenvolvimento Ltd., Porto Alegre, Rio Grande do Sul 90619-900, Brazil
| | - Adriano Gennari
- Food
Biotechnology Laboratory, Biotechnology Graduate Program, University of Vale do Taquari (UNIVATES), Lajeado, Rio Grande do Sul 95914-014, Brazil
| | - Leonardo Luís Artico
- Centro
Infantil Boldrini, Campinas, São Paulo 13083-210, Brazil
- Graduate
Program in Genetics and Molecular Biology, Biology Institute, State University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - José Ricardo
Teixeira Júnior
- Centro
Infantil Boldrini, Campinas, São Paulo 13083-210, Brazil
- Graduate
Program in Genetics and Molecular Biology, Biology Institute, State University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Daniel Kuhn
- Food
Biotechnology Laboratory, Biotechnology Graduate Program, University of Vale do Taquari (UNIVATES), Lajeado, Rio Grande do Sul 95914-014, Brazil
| | - Priscila Pini Zenatti Salles
- Centro
Infantil Boldrini, Campinas, São Paulo 13083-210, Brazil
- Graduate
Program in Genetics and Molecular Biology, Biology Institute, State University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Claucia Fernada Volken de Souza
- Food
Biotechnology Laboratory, Biotechnology Graduate Program, University of Vale do Taquari (UNIVATES), Lajeado, Rio Grande do Sul 95914-014, Brazil
| | - Gustavo Roth
- Pontifical
Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 90619-900, Brazil
| | - Jocelei Maria Chies
- Quatro
G Pesquisa & Desenvolvimento Ltd., Porto Alegre, Rio Grande do Sul 90619-900, Brazil
| | - José Andrés Yunes
- Centro
Infantil Boldrini, Campinas, São Paulo 13083-210, Brazil
- Department
of Medical Genetics, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Luiz Augusto Basso
- National
Institute of Science and Technology in Tuberculosis, Research Center
for Molecular and Functional Biology, Pontifical
Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 90619-900, Brazil
- Graduate
Program in Medicine and Health Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande
do Sul 90619-900, Brazil
- Graduate
Program in Cellular and Molecular Biology, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande
do Sul 90619-900, Brazil
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Gennari A, Simon R, de Andrade BC, Kuhn D, Renard G, Chies JM, Volpato G, Volken de Souza CF. Recombinant Production in Escherichia coli of a β-galactosidase Fused to a Cellulose-binding Domain Using Low-cost Inducers in Fed-batch Cultivation. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.11.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Method for high-efficiency fed-batch cultures of recombinant Escherichia coli. Methods Enzymol 2021; 659:189-217. [PMID: 34752285 DOI: 10.1016/bs.mie.2021.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Fed-batch processes are commonly used in industry to obtain sufficient biomass and associated recombinant protein or plasmids. In research laboratories, it is more common to use batch cultures, as the setup of fed-batch processes can be challenging. This method outlines a robust and reliable means to generate Escherichia coli biomass in a minimum amount of fermentation time using a standardized fed-batch process. Final cell densities can reach over 50g dry cell weight per liter (gdcw/L) depending on the strain. This method uses a predefined exponential feeding strategy and conservative induction protocol to achieve these targets without multiple trial and error studies. If desired, productivity can be optimized by balancing the induction time and feed rates. This method utilizes cost-efficient defined media, minimizes process control complexity, and potentially aids downstream purification.
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Microbial starch debranching enzymes: Developments and applications. Biotechnol Adv 2021; 50:107786. [PMID: 34147588 DOI: 10.1016/j.biotechadv.2021.107786] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 06/04/2021] [Accepted: 06/15/2021] [Indexed: 12/28/2022]
Abstract
Starch debranching enzymes (SDBEs) hydrolyze the α-1,6 glycosidic bonds in polysaccharides such as starch, amylopectin, pullulan and glycogen. SDBEs are also important enzymes for the preparation of sugar syrup, resistant starch and cyclodextrin. As the synergistic catalysis of SDBEs and other starch-acting hydrolases can effectively improve the raw material utilization and production efficiency during starch processing steps such as saccharification and modification, they have attracted substantial research interest in the past decades. The substrate specificities of the two major members of SDBEs, pullulanases and isoamylases, are quite different. Pullulanases generally require at least two α-1,4 linked glucose units existing on both sugar chains linked by the α-1,6 bond, while isoamylases require at least three units of α-1,4 linked glucose. SDBEs mainly belong to glycoside hydrolase (GH) family 13 and 57. Except for GH57 type II pullulanse, GH13 pullulanases and isoamylases share plenty of similarities in sequence and structure of the core catalytic domains. However, the N-terminal domains, which might be one of the determinants contributing to the substrate binding of SDBEs, are distinct in different enzymes. In order to overcome the current defects of SDBEs in catalytic efficiency, thermostability and expression level, great efforts have been made to develop effective enzyme engineering and fermentation strategies. Herein, the diverse biochemical properties and distinct features in the sequence and structure of pullulanase and isoamylase from different sources are summarized. Up-to-date developments in the enzyme engineering, heterologous production and industrial applications of SDBEs is also reviewed. Finally, research perspective which could help understanding and broadening the applications of SDBEs are provided.
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Nghia NH, Kumada Y, Kishimoto M, Horiuchi JI. Effective production of single-chain variable fragment (scFv) antibody using recombinant Escherichia coli by DO-stat fed-batch culture. J Biosci Bioeng 2021; 132:56-63. [PMID: 33896701 DOI: 10.1016/j.jbiosc.2021.03.013] [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: 02/26/2021] [Revised: 03/24/2021] [Accepted: 03/24/2021] [Indexed: 02/06/2023]
Abstract
Dissolved oxygen (DO)-stat fed-batch culture, which allows a high cell density culture of microorganisms under constant DO conditions, was applied to anti-CRP single-chain variable fragment (scFv) production using recombinant Escherichia coli. The DO-stat fed-batch culture was successfully performed under various DO conditions for more than 50 h, resulting in increased scFv production from 0.5 to 0.8 g/L by flask and batch cultures to 2.8-3.0 g/L by the fed-batch culture under the conditions of 5-40% of DO saturation. The formation of inclusion bodies was effectively depressed during DO-stat fed-batch operation; consequently, the solubility of anti-CRP scFv was significantly improved from 36-43% by the flask and batch cultures to 96-98% by the DO-stat fed-batch culture under a wide range of DO conditions. From the kinetic analysis of fed-batch experiments, it was also found that the successful folding of anti-CRP scFv in the cytoplasm occurred when metabolic rates, such as the specific growth rate and specific glucose consumption rate, were relatively low. These results show that the fed-batch culture operated by the DO-stat feeding strategy was effective for the enhanced production of anti-CRP scFv with high solubility.
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Affiliation(s)
- Nguyen Hieu Nghia
- Department of Functional Chemistry, Kyoto Institute of Technology, 1 Hashigami-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Yoichi Kumada
- Department of Functional Chemistry, Kyoto Institute of Technology, 1 Hashigami-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Michimasa Kishimoto
- Department of Functional Chemistry, Kyoto Institute of Technology, 1 Hashigami-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Jun-Ichi Horiuchi
- Department of Functional Chemistry, Kyoto Institute of Technology, 1 Hashigami-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
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