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Majumder D, Dey A, Ray S, Bhattacharya D, Nag M, Lahiri D. Use of genomics & proteomics in studying lipase producing microorganisms & its application. FOOD CHEMISTRY. MOLECULAR SCIENCES 2024; 9:100218. [PMID: 39281291 PMCID: PMC11402113 DOI: 10.1016/j.fochms.2024.100218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 08/08/2024] [Accepted: 08/17/2024] [Indexed: 09/18/2024]
Abstract
In biotechnological applications, lipases are recognized as the most widely utilized and versatile enzymes, pivotal in biocatalytic processes, predominantly produced by various microbial species. Utilizing omics technology, natural sources can be meticulously screened to find microbial flora which are responsible for oil production. Lipases are versatile biocatalysts. They are used in a variety of bioconversion reactions and are receiving a lot of attention because of the quick development of enzyme technology and its usefulness in industrial operations. This article offers recent insights into microbial lipase sources, including fungi, bacteria, and yeast, alongside traditional and modern methods of purification such as precipitation, immunopurification and chromatographic separation. Additionally, it explores innovative methods like the reversed micellar system, aqueous two-phase system (ATPS), and aqueous two-phase flotation (ATPF). The article deals with the use of microbial lipases in a variety of sectors, including the food, textile, leather, cosmetics, paper, detergent, while also critically analyzing lipase-producing microbes. Moreover, it highlights the role of lipases in biosensors, biodiesel production, tea processing, bioremediation, and racemization. This review provides the concept of the use of omics technique in the mechanism of screening of microbial species those are capable of producing lipase and also find the potential applications.
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Affiliation(s)
- Debashrita Majumder
- Department of Biotechnology, Institute of Engineering and Management, Kolkata, University of Engineering and Management, Kolkata, West Bengal, India
| | - Ankita Dey
- Department of Chemical Engineering, National Institute of Technology, Agartala, India
| | - Srimanta Ray
- Department of Chemical Engineering, National Institute of Technology, Agartala, India
| | - Debasmita Bhattacharya
- Department of Basic Science and Humanities, Institute of Engineering and Management, Kolkata, University of Engineering and Management, Kolkata, West Bengal, India
| | - Moupriya Nag
- Department of Biotechnology, Institute of Engineering and Management, Kolkata, University of Engineering and Management, Kolkata, West Bengal, India
| | - Dibyajit Lahiri
- Department of Biotechnology, Institute of Engineering and Management, Kolkata, University of Engineering and Management, Kolkata, West Bengal, India
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De Brabander P, Uitterhaegen E, Delmulle T, De Winter K, Soetaert W. Challenges and progress towards industrial recombinant protein production in yeasts: A review. Biotechnol Adv 2023; 64:108121. [PMID: 36775001 DOI: 10.1016/j.biotechadv.2023.108121] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 02/07/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023]
Abstract
Recombinant proteins (RP) are widely used as biopharmaceuticals, industrial enzymes, or sustainable food source. Yeasts, with their ability to produce complex proteins through a broad variety of cheap carbon sources, have emerged as promising eukaryotic production hosts. As such, the prevalence of yeasts as favourable production organisms in commercial RP production is expected to increase. Yet, with the selection of a robust production host on the one hand, successful scale-up is dependent on a thorough understanding of the challenging environment and limitations of large-scale bioreactors on the other hand. In the present work, several prominent yeast species, including Saccharomyces cerevisiae, Pichia pastoris, Yarrowia lipolytica, Kluyveromyces lactis and Kluyveromyces marxianus are reviewed for their current state and performance in commercial RP production. Thereafter, the impact of principal process control parameters, including dissolved oxygen, pH, substrate concentration, and temperature, on large-scale RP production are discussed. Finally, technical challenges of process scale-up are identified. To that end, process intensification strategies to enhance industrial feasibility are summarized, specifically highlighting fermentation strategies to ensure sufficient cooling capacity, overcome oxygen limitation, and increase protein quality and productivity. As such, this review aims to contribute to the pursuit of sustainable yeast-based RP production.
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Affiliation(s)
- Pieter De Brabander
- Centre for Industrial Biotechnology and Biocatalysis (InBio.be), Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium; Bio Base Europe Pilot Plant (BBEPP), Rodenhuizekaai 1, 9042 Ghent (Desteldonk), Belgium
| | - Evelien Uitterhaegen
- Bio Base Europe Pilot Plant (BBEPP), Rodenhuizekaai 1, 9042 Ghent (Desteldonk), Belgium
| | - Tom Delmulle
- Centre for Industrial Biotechnology and Biocatalysis (InBio.be), Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Karel De Winter
- Bio Base Europe Pilot Plant (BBEPP), Rodenhuizekaai 1, 9042 Ghent (Desteldonk), Belgium.
| | - Wim Soetaert
- Centre for Industrial Biotechnology and Biocatalysis (InBio.be), Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium; Bio Base Europe Pilot Plant (BBEPP), Rodenhuizekaai 1, 9042 Ghent (Desteldonk), Belgium
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So KK, Le NMT, Nguyen NL, Kim DH. Improving expression and assembly of difficult-to-express heterologous proteins in Saccharomyces cerevisiae by culturing at a sub-physiological temperature. Microb Cell Fact 2023; 22:55. [PMID: 36959657 PMCID: PMC10035479 DOI: 10.1186/s12934-023-02065-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 03/19/2023] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND Escherichia coli heat labile toxin B subunit (LTB) is one of the most popular oral vaccine adjuvants and intestine adsorption enhancers. It is often expressed as a fusion partner with target antigens to enhance their immunogenicity as well as gut absorbability. However, high expression levels of a fusion protein are critical to the outcome of immunization experiments and the success of subsequent vaccine development efforts. In order to improve the expression and functional assembly of LTB-fusion proteins using Saccharomyces cerevisiae, we compared their expression under culture conditions at a sub-physiological temperature 20 °C with their expression under a standard 30 °C. RESULTS The assembled expression of LTB-EDIII2 (LTB fused to the envelope domain III (EDIII) of Dengue virus serotype 2), which was expressed at the level of 20 µg/L in our previous study, was higher when the expression temperature was 20 °C as opposed to 30 °C. We also tested whether the expression and functional assembly of a difficult-to-express LTB fusion protein could be increased. The assembled expression of the difficult-to-express LTB-VP1 fusion protein (LTB fused to VP1 antigen of Foot-and-Mouth Disease Virus) dramatically increased, although the total amount of expressed protein was still lower than that of LTB-EDIII2. Slight but significant increase in the expression of well-known reporter protein eGFP, which has previously been shown to be increased by cultivation at 20 °C, was also observed in our expression system. As no significant changes in corresponding transcripts levels and cell growth were observed between 20 °C and 30 °C, we infer that translation and post-translational assembly are responsible for these enhancements. CONCLUSIONS The effects of lowering the expression temperature from 30 °C to 20 °C on protein expression and folding levels in S. cerevisiae, using several proteins as models, are reported. When heterologous proteins are expressed at 20 °C, a greater amount of (specially, more assembled) functional proteins accumulated than at 30 °C. Although further studies are required to understand the molecular mechanisms, our results suggest that lowering the expression temperature is a convenient strategy for improving the expression of relatively complexly structured and difficult-to-express proteins in S. cerevisiae.
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Affiliation(s)
- Kum-Kang So
- Institute for Molecular Biology and Genetics, Department of Molecular Biology, Jeonbuk National University, Jeonju, Jeollabuk-Do, 54896, Republic of Korea
| | - Ngoc My Tieu Le
- Department of Bioactive Material Sciences, Jeonbuk National University, Jeonju, Jeollabuk-Do, 54896, Republic of Korea
| | - Ngoc-Luong Nguyen
- Department of Biology, College of Sciences, Hue University, Hue, 530000, Vietnam.
| | - Dae-Hyuk Kim
- Institute for Molecular Biology and Genetics, Department of Molecular Biology, Jeonbuk National University, Jeonju, Jeollabuk-Do, 54896, Republic of Korea.
- Department of Bioactive Material Sciences, Jeonbuk National University, Jeonju, Jeollabuk-Do, 54896, Republic of Korea.
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Novel CaLB-like Lipase Found Using ProspectBIO, a Software for Genome-Based Bioprospection. BIOTECH (BASEL (SWITZERLAND)) 2023; 12:biotech12010006. [PMID: 36648832 PMCID: PMC9844320 DOI: 10.3390/biotech12010006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/29/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023]
Abstract
Enzymes have been highly demanded in diverse applications such as in the food, pharmaceutical, and industrial fuel sectors. Thus, in silico bioprospecting emerges as an efficient strategy for discovering new enzyme candidates. A new program called ProspectBIO was developed for this purpose as it can find non-annotated sequences by searching for homologs of a model enzyme directly in genomes. Here we describe the ProspectBIO software methodology and the experimental validation by prospecting for novel lipases by sequence homology to Candida antarctica lipase B (CaLB) and conserved motifs. As expected, we observed that the new bioprospecting software could find more sequences (1672) than a conventional similarity-based search in a protein database (733). Additionally, the absence of patent protection was introduced as a criterion resulting in the final selection of a putative lipase-encoding gene from Ustilago hordei (UhL). Expression of UhL in Pichia pastoris resulted in the production of an enzyme with activity towards a tributyrin substrate. The recombinant enzyme activity levels were 4-fold improved when lowering the temperature and increasing methanol concentrations during the induction phase in shake-flask cultures. Protein sequence alignment and structural modeling showed that the recombinant enzyme has high similarity and capability of adjustment to the structure of CaLB. However, amino acid substitutions identified in the active pocket entrance may be responsible for the differences in the substrate specificities of the two enzymes. Thus, the ProspectBIO software allowed the finding of a new promising lipase for biotechnological application without the need for laborious and expensive conventional bioprospecting experimental steps.
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Herrera-Estala AL, Fuentes-Garibay JA, Guerrero-Olazarán M, Viader-Salvadó JM. Low specific growth rate and temperature in fed-batch cultures of a beta-propeller phytase producing Pichia pastoris strain under GAP promoter trigger increased KAR2 and PSA1-1 gene expression yielding enhanced extracellular productivity. J Biotechnol 2022; 352:59-67. [PMID: 35618082 DOI: 10.1016/j.jbiotec.2022.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 05/17/2022] [Accepted: 05/19/2022] [Indexed: 01/30/2023]
Abstract
Previously, we showed that the methylotrophic yeast Pichia pastoris (syn. Komagataella phaffii) could produce and secrete the beta-propeller phytase FTEII in an active form under the control of the AOX1 promoter and methanol as the inductor. In this work, we engineered P. pastoris strains to construct a constitutive P. pastoris expression system (GAP promoter) and extracellularly produce the phytase FTEII. We optimized the culture conditions to increase the extracellular volumetric phytase productivity (Qp) and evaluated the impact of the optimization process on the physiological response of the host. Moreover, we analyzed the expression levels of the FTEII gene and endogenous genes for P. pastoris cells in cultures with the lowest and highest Qp to understand which processes (from heterologous gene expression to protein secretion) might be responsible for the increase in Qp. The results indicate that a low specific growth rate and temperature in the fed-batch phase increases the Qp, which was correlated with an upregulation of the KAR2 and PSA1-1/MPG1 genes rather than increased heterologous gene transcription.
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Affiliation(s)
- Ana Lucía Herrera-Estala
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, Instituto de Biotecnología, 66455 San Nicolás de los Garza, N.L., Mexico
| | - José Antonio Fuentes-Garibay
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, Instituto de Biotecnología, 66455 San Nicolás de los Garza, N.L., Mexico
| | - Martha Guerrero-Olazarán
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, Instituto de Biotecnología, 66455 San Nicolás de los Garza, N.L., Mexico
| | - José María Viader-Salvadó
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, Instituto de Biotecnología, 66455 San Nicolás de los Garza, N.L., Mexico.
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Effects of Temperature and pH on Recombinant Thaumatin II Production by Pichia pastoris. Foods 2022; 11:foods11101438. [PMID: 35627007 PMCID: PMC9141780 DOI: 10.3390/foods11101438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/11/2022] [Accepted: 05/12/2022] [Indexed: 02/01/2023] Open
Abstract
The sweet protein thaumatin is emerging as a promising sugar replacer in the market today, especially in the food and beverage sector. Rising demand for its production necessitates the large-scale extraction of this protein from its natural plant source, which can be limited in terms of raw material availability and production costs. Using a recombinant production technique via a yeast platform, specifically, Pichia pastoris, is more promising to achieve the product economically while maintaining batch-to-batch consistency. However, the bioproduction of recombinant proteins requires the identification of optimal process variables, constituting the maximal yield of the product of interest. These variables have a direct effect on the growth of the host organism and the secretion levels of the recombinant protein. In this study, two important environmental factors, pH, and temperature were assessed by cultivating P. pastoris in shake flasks to understand their influence on growth and the production levels of thaumatin II protein. The results from the pH study indicate that P. pastoris attained a higher viable cell density and secretion of protein at pH 6.0 compared to 5.0 when grown at 30 °C. Furthermore, within the three levels of temperatures investigated when grown at pH 6.0, the protein levels were the highest at 30 °C compared to 20 and 25 °C, whereas 25 °C exhibited the highest viable cell density. Interestingly, the trend observed from the qualitative effects of temperature and pH occurred in all the media that was investigated. These results broaden our understanding of how pH and temperature adjustment during P. pastoris cultivation aid in enhancing the production yields of thaumatin II prior to optimising the fed batch bioreactor operation.
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Wang D, Li W, Zhang X, Liang S, Lin Y. Green Process: Improved Semi-Continuous Fermentation of Pichia pastoris Based on the Principle of Vitality Cell Separation. Front Bioeng Biotechnol 2021; 9:777774. [PMID: 34917600 PMCID: PMC8669635 DOI: 10.3389/fbioe.2021.777774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/28/2021] [Indexed: 11/13/2022] Open
Abstract
The large-scale fermentation of Pichia pastoris for recombinant protein production would be time consuming and produce a large amount of waste yeast. Here we introduce a novel semi-continuous fermentation process for P. pastoris GS115 that can separate vitality cells from broth and recycle the cells to produce high-secretory recombinant pectate lyase. It is based on differences in cell sedimentation coefficients with the formation of salt bridges between metal ions and various cell states. Compared to batch-fed cultivation and general semi-continuous culture, the novel process has significant advantages, such as consuming fewer resources, taking less time, and producing less waste yeast. Sedimentation with the addition of Fe3+ metal ions consumed 14.8 ± 0.0% glycerol, 97.8 ± 1.3% methanol, 55.0 ± 0.9 inorganic salts, 81.5 ± 0.0% time cost, and 77.0 ± 0.1% waste yeast versus batch-fed cultivation to produce an equal amount of protein; in addition, the cost of solid-liquid separation was lower for cells in the collected fermentation broth. The process is economically and environmentally efficient for producing recombinant proteins.
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Affiliation(s)
- Denggang Wang
- South China University of Technology, Guangzhou, China
| | - Wenjie Li
- South China University of Technology, Guangzhou, China
| | - Xinying Zhang
- South China University of Technology, Guangzhou, China
| | - Shuli Liang
- South China University of Technology, Guangzhou, China
| | - Ying Lin
- South China University of Technology, Guangzhou, China
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Aw R, Ashik MR, Islam AAZM, Khan I, Mainuddin M, Islam MA, Ahasan MM, Polizzi KM. Production and purification of an active CRM197 in Pichia pastoris and its immunological characterization using a Vi-typhoid antigen vaccine. Vaccine 2021; 39:7379-7386. [PMID: 34774362 DOI: 10.1016/j.vaccine.2021.10.083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 10/06/2021] [Accepted: 10/31/2021] [Indexed: 10/19/2022]
Abstract
CRM197 is a commonly used glycoconjugate carrier that improves the immunogenicity of vaccines, particularly in infants. Despite the advantages of this diphtheria toxoid mutant, low yields, production in inclusion bodies, and the requirement for specific growth conditions have limited the breadth of successful recombinant protein expression platforms available for its expression. We evaluated Pichia pastoris as a production host, using the methanol inducible AOX1 promoter and a modified α-mating factor signal peptide for secretion into the supernatant. Final purified yields >100 mg L-1 culture were achieved when produced in a bioreactor, which is equivalent to the productivity obtained from bioprocesses using the native Corynebacterium diphtheriae host. Recombinant CRM197 was purified to ≥95% homogeneity and showed the expected endonuclease activity. Furthermore, mice immunized with a Salmonella enterica serovar Typhi capsular Vi antigen conjugated to our recombinant CRM197 showed greater than 5-fold increase in immune response. Overall, the results demonstrate that Pichia pastoris is a suitable expression host for the production of high quality CRM197 for vaccine applications.
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Affiliation(s)
- Rochelle Aw
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK; Imperial College Centre for Synthetic Biology, Imperial College London, SW7 2AZ, UK
| | | | | | - Imran Khan
- Incepta Vaccine Ltd, Savar, Dhaka 1341, Bangladesh
| | | | | | | | - Karen M Polizzi
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK; Imperial College Centre for Synthetic Biology, Imperial College London, SW7 2AZ, UK.
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Luo G, Liu J, Bian T, Zhang Z, Li M. The mechanism of N-acetyl-l-cysteine in improving the secretion of porcine follicle-stimulating hormone in Pichia pastoris. Yeast 2021; 38:601-611. [PMID: 34486746 DOI: 10.1002/yea.3668] [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: 11/09/2020] [Revised: 06/24/2021] [Accepted: 08/23/2021] [Indexed: 12/15/2022] Open
Abstract
Our previous study revealed that N-acetyl-l-cysteine (NAC) could enhance the secretion of recombinant proteins by Pichia pastoris, but the corresponding molecular mechanisms are still unclear. In the present study, we explored whether other thiols have a similar action on the secretion of recombinant human serum albumin and porcine follicle-stimulating hormone fusion protein (HSA-pFSHβ), to reveal the mechanism of NAC on HSA-pFSHβ secretion. Transcriptome analysis showed that genes involved in oxidoreductase activity and oxidation-reduction process were upregulated in cells supplemented with NAC. The other three thiol-reducing regents including dimercaptopropanol (DT), thioglycolic acid, and mercaptolactic acid could improve HSA-pFSHβ production in the culture supernatant. Among them, only DT had similar effect as NAC on HSA-pFSHβ secretion and the increase of GSH content. Moreover, 1-20 mM GSH, 1-10 mM cysteine, or 1-20 mM N-acetyl-d-cysteine supplementation could improve the secretion of HSA-pFSHβ. Furthermore, 0.4-3.2 mM ethacrynic acid, rather than 1-16 mM BSO could inhibit the effect of NAC on the production of HSA-pFSHβ. These results indicated that NAC improved the secretion of HSA-pFSHβ by increasing the intracellular GSH content through its thiol activity rather than as a precursor for GSH synthesis. In conclusion, our results demonstrate, for the first time, that the secretion of recombinant HSA-pFSHβ in Pichia pastoris could be improved through thiol-reducing agent supplementation, and the mechanism of the effect NAC has on HSA-pFSHβ secretion is associated with improving the intracellular GSH content.
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Affiliation(s)
- Gang Luo
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu Province, China
| | - Jiying Liu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu Province, China
| | - Ting Bian
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu Province, China
| | - Zhendong Zhang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu Province, China
| | - Muwang Li
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu Province, China
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Duman-Özdamar ZE, Binay B. Production of Industrial Enzymes via Pichia pastoris as a Cell Factory in Bioreactor: Current Status and Future Aspects. Protein J 2021; 40:367-376. [DOI: 10.1007/s10930-021-09968-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2021] [Indexed: 02/06/2023]
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Advances in Recombinant Lipases: Production, Engineering, Immobilization and Application in the Pharmaceutical Industry. Catalysts 2020. [DOI: 10.3390/catal10091032] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Lipases are one of the most used enzymes in the pharmaceutical industry due to their efficiency in organic syntheses, mainly in the production of enantiopure drugs. From an industrial viewpoint, the selection of an efficient expression system and host for recombinant lipase production is highly important. The most used hosts are Escherichia coli and Komagataella phaffii (previously known as Pichia pastoris) and less often reported Bacillus and Aspergillus strains. The use of efficient expression systems to overproduce homologous or heterologous lipases often require the use of strong promoters and the co-expression of chaperones. Protein engineering techniques, including rational design and directed evolution, are the most reported strategies for improving lipase characteristics. Additionally, lipases can be immobilized in different supports that enable improved properties and enzyme reuse. Here, we review approaches for strain and protein engineering, immobilization and the application of lipases in the pharmaceutical industry.
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Velez‐Suberbie ML, Morris SA, Kaur K, Hickey JM, Joshi SB, Volkin DB, Bracewell DG, Mukhopadhyay TK. Holistic process development to mitigate proteolysis of a subunit rotavirus vaccine candidate produced in Pichia pastoris by means of an acid pH pulse during fed-batch fermentation. Biotechnol Prog 2020; 36:e2966. [PMID: 31960616 PMCID: PMC7317458 DOI: 10.1002/btpr.2966] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 11/09/2022]
Abstract
To meet the challenges of global health, vaccine design and development must be reconsidered to achieve cost of goods as low as 15¢ per dose. A new recombinant protein-based rotavirus vaccine candidate derived from non-replicative viral subunits fused to a P2 tetanus toxoid CD4(+) T cell epitope is currently under clinical development. We have sought to simplify the existing manufacturing process to meet these aims. To this end, we have taken a holistic process development approach to reduce process complexity and costs while producing a product with the required characteristics. We have changed expression system from Escherichia coli to Pichia pastoris, to produce a secreted product, thereby reducing the number of purification steps. However, the presence of proteases poses challenges to product quality. To understand the effect of fermentation parameters on product quality small-scale fermentations were carried out. Media pH and fermentation duration had the greatest impact on the proportion of full-length product. A novel acidic pH pulse strategy was used to minimize proteolysis, and this combined with an early harvest time significantly increased the proportion of full-length material (60-75%). An improved downstream process using a combination of CIEX and AIEX to further reduce proteases, resulted in maintaining product quality (95% yield).
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Affiliation(s)
| | - Stephen A. Morris
- Department of Biochemical EngineeringUniversity College LondonLondonUnited Kingdom
| | - Kawaljit Kaur
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation CenterUniversity of KansasLawrenceKansas
| | - John M. Hickey
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation CenterUniversity of KansasLawrenceKansas
| | - Sangeeta B. Joshi
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation CenterUniversity of KansasLawrenceKansas
| | - David B. Volkin
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation CenterUniversity of KansasLawrenceKansas
| | - Daniel G. Bracewell
- Department of Biochemical EngineeringUniversity College LondonLondonUnited Kingdom
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Prabhu AA, Kumar JP, Mandal BB, Veeranki VD. Glucose-methanol-based fed-batch fermentation for the production of recombinant human interferon gamma (rhIFN-γ) and evaluation of its antitumor potential. Biotechnol Appl Biochem 2019; 67:973-982. [PMID: 31811672 DOI: 10.1002/bab.1868] [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: 05/10/2019] [Accepted: 12/02/2019] [Indexed: 11/09/2022]
Abstract
Squamous cell carcinoma (SCC) is nonmelanoma skin cancer, which is very common in patients having T-cell immunosuppressant drugs. Anticancerous agents such as cytokines showed effective response on SCC. Human interferon-gamma (hIFN-γ), a type II cytokines, are having potent antiproliferative and immunomodulatory effects. In the current study, the fed-batch cultivation of recombinant Pichia pastoris was carried out, and its effect on cell biomass production, recombinant human interferon-gamma (rhIFN-γ) production, and the overflow metabolites was estimated. P. pastoris GS115 strain coexpressed with 6-phosphogluconolactonase (SOL3) and ribulose-phosphate 3-epimerase (RPE1) gene (GS115/rhIFN-γ/SR) resulted in 60 mg L-1 of rhIFN-γ production, which was twofold higher as compared with the production from GS115/rhIFN-γ strain. The antiproliferative potential of rhIFN-γ was examined on the human squamous carcinoma (A431) cell lines. Cells treated with 80 ng mL-1 of rhIFN-γ exhibited 50% growth inhibition by enhancing the production of intracellular reactive oxygen species levels and disrupting membrane integrity. Our findings highlight a state of art process development strategy for the high-level production of rhIFN-γ and its potential application as a therapeutic drug in SCC therapy.
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Affiliation(s)
- Ashish A Prabhu
- Biochemical Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati (IITG), Guwahati, Assam, India
| | - Jadi Praveen Kumar
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati (IITG), Guwahati, Assam, India
| | - Biman B Mandal
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati (IITG), Guwahati, Assam, India.,Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Venkata Dasu Veeranki
- Biochemical Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati (IITG), Guwahati, Assam, India
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Balakrishnan R, Tadi SRR, Rajaram SK, Mohan N, Sivaprakasam S. Batch and fed-batch fermentation of optically pure D (-) lactic acid from Kodo millet (Paspalum scrobiculatum) bran residue hydrolysate: growth and inhibition kinetic modeling. Prep Biochem Biotechnol 2019; 50:365-378. [DOI: 10.1080/10826068.2019.1697934] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Rengesh Balakrishnan
- Department of Biotechnology, Kamaraj College of Engineering and Technology, Madurai, India
| | - Subbi Rami Reddy Tadi
- BioPAT Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Shyam Kumar Rajaram
- Department of Biotechnology, Kamaraj College of Engineering and Technology, Madurai, India
| | - Naresh Mohan
- BioPAT Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Senthilkumar Sivaprakasam
- BioPAT Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
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15
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Sun X, Liu H, Wang P, Wang L, Ni W, Yang Q, Wang H, Tang H, Zhao G, Zheng Z. Construction of a novel MK-4 biosynthetic pathway in Pichia pastoris through heterologous expression of HsUBIAD1. Microb Cell Fact 2019; 18:169. [PMID: 31601211 PMCID: PMC6786277 DOI: 10.1186/s12934-019-1215-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 09/24/2019] [Indexed: 02/07/2023] Open
Abstract
Background With a variety of physiological and pharmacological functions, menaquinone is an essential prenylated product that can be endogenously converted from phylloquinone (VK1) or menadione (VK3) via the expression of Homo sapiens UBIAD1 (HsUBIAD1). The methylotrophic yeast, Pichia pastoris, is an attractive expression system that has been successfully applied to the efficient expression of heterologous proteins. However, the menaquinone biosynthetic pathway has not been discovered in P. pastoris. Results Firstly, we constructed a novel synthetic pathway in P. pastoris for the production of menaquinone-4 (MK-4) via heterologous expression of HsUBIAD1. Then, the glyceraldehyde-3-phosphate dehydrogenase constitutive promoter (PGAP) appeared to be mostsuitable for the expression of HsUBIAD1 for various reasons. By optimizing the expression conditions of HsUBIAD1, its yield increased by 4.37 times after incubation at pH 7.0 and 24 °C for 36 h, when compared with that under the initial conditions. We found HsUBIAD1 expressed in recombinant GGU-23 has the ability to catalyze the biosynthesis of MK-4 when using VK1 and VK3 as the isopentenyl acceptor. In addition, we constructed a ribosomal DNA (rDNA)-mediated multi-copy expression vector for the fusion expression of SaGGPPS and PpIDI, and the recombinant GGU-GrIG afforded higher MK-4 production, so that it was selected as the high-yield strain. Finally, the yield of MK-4 was maximized at 0.24 mg/g DCW by improving the GGPP supply when VK3 was the isopentenyl acceptor. Conclusions In this study, we constructed a novel synthetic pathway in P. pastoris for the biosynthesis of the high value-added prenylated product MK-4 through heterologous expression of HsUBIAD1 and strengthened accumulation of GGPP. This approach could be further developed and accomplished for the biosynthesis of other prenylated products, which has great significance for theoretical research and industrial application.
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Affiliation(s)
- Xiaowen Sun
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, Anhui, People's Republic of China.,University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China
| | - Hui Liu
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, Anhui, People's Republic of China
| | - Peng Wang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, Anhui, People's Republic of China
| | - Li Wang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, Anhui, People's Republic of China
| | - Wenfeng Ni
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, Anhui, People's Republic of China.,University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China
| | - Qiang Yang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, Anhui, People's Republic of China.,University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China
| | - Han Wang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, Anhui, People's Republic of China.,University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China
| | - Hengfang Tang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, Anhui, People's Republic of China.,University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China
| | - Genhai Zhao
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, Anhui, People's Republic of China.
| | - Zhiming Zheng
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, Anhui, People's Republic of China.
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16
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Statistically Designed Medium Reveals Interactions between Metabolism and Genetic Information Processing for Production of Stable Human Serum Albumin in Pichia pastoris. Biomolecules 2019; 9:biom9100568. [PMID: 31590267 PMCID: PMC6843683 DOI: 10.3390/biom9100568] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 09/27/2019] [Accepted: 10/02/2019] [Indexed: 12/17/2022] Open
Abstract
Human serum albumin (HSA), sourced from human serum, has been an important therapeutic protein for several decades. Pichia pastoris is strongly considered as an expression platform, but proteolytic degradation of recombinant HSA in the culture filtrate remains a major bottleneck for use of this system. In this study, we have reported the development of a medium that minimized proteolytic degradation across different copy number constructs. A synthetic codon-optimized copy of HSA was cloned downstream of α-factor secretory signal sequence and expressed in P. pastoris under the control of Alcohol oxidase 1 promoter. A two-copy expression cassette was also prepared. Culture conditions and medium components were identified and optimized using statistical tools to develop a medium that supported stable production of HSA. Comparative analysis of transcriptome data obtained by cultivation on optimized and unoptimized medium indicated upregulation of genes involved in methanol metabolism, alternate nitrogen assimilation, and DNA transcription, whereas enzymes of translation and secretion were downregulated. Several new genes were identified that could serve as possible targets for strain engineering of this yeast.
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17
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Theron CW, Berrios J, Steels S, Telek S, Lecler R, Rodriguez C, Fickers P. Expression of recombinant enhanced green fluorescent protein provides insight into foreign gene‐expression differences betweenMut+andMutSstrains ofPichia pastoris. Yeast 2019; 36:285-296. [DOI: 10.1002/yea.3388] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 03/04/2019] [Accepted: 03/19/2019] [Indexed: 12/13/2022] Open
Affiliation(s)
- Chrispian W. Theron
- Microbial Processes and Interactions, TERRA Teaching and Research Centre, Gembloux AgroBio TechUniversity of Liège Gembloux Belgium
| | - Julio Berrios
- Escuela de Ingeniería BioquímicaPontificia Universidad Católica de Valparaíso Valparaíso Chile
| | - Sébastien Steels
- Microbial Processes and Interactions, TERRA Teaching and Research Centre, Gembloux AgroBio TechUniversity of Liège Gembloux Belgium
| | - Samuel Telek
- Microbial Processes and Interactions, TERRA Teaching and Research Centre, Gembloux AgroBio TechUniversity of Liège Gembloux Belgium
| | | | | | - Patrick Fickers
- Microbial Processes and Interactions, TERRA Teaching and Research Centre, Gembloux AgroBio TechUniversity of Liège Gembloux Belgium
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18
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Duan G, Ding L, Wei D, Zhou H, Chu J, Zhang S, Qian J. Screening endogenous signal peptides and protein folding factors to promote the secretory expression of heterologous proteins in Pichia pastoris. J Biotechnol 2019; 306:193-202. [PMID: 31202796 DOI: 10.1016/j.jbiotec.2019.06.297] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 06/10/2019] [Accepted: 06/12/2019] [Indexed: 12/23/2022]
Abstract
Secretory expression is most often desired but usually hampered by limitations of signal peptide processing and protein folding in the methylotrophic yeast Pichia pastoris. To alleviate such limitations, novel endogenous signal peptides (Dan4, Gas1, Msb2, and Fre2) and folding factors (Mpd1p, Pdi2p, and Sil1p) were predicted based on the reported P. pastoris secretome and genome. Their effects were investigated using three reporter proteins: yeast-enhanced green fluorescent protein (yEGFP), β-galactosidase (Gal) and cephalosporin C acylase (SECA), in comparison with the commonly used Saccharomyces cerevisiae alpha-mating factor pre-pro leader sequence (α-MF) or folding factors (Pdi1p, BiP, and Hac1p). The newly identified signal sequences were superior over α-MF for production of heterologous proteins. The signal peptide Msb2 increased the specific extracellular production of all reporter proteins, ranging from 1.5- to 8.0-fold, and Dan4 enhanced all total protein production up to 172-fold. Co-expression of folding factors exhibited a protein-specific effect on cell growth, transcription and expression of different reporter genes. All of the novel folding factors enhanced total production of SECA, and Sil1p performed best in the extracellular SECA production, showing a 3.3-fold increase. These novel signal peptides and folding factors can be used for promoting secretion of heterologous proteins in P. pastoris.
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Affiliation(s)
- Guangdong Duan
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China
| | - Lumei Ding
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China
| | - Dongsheng Wei
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China
| | - Hangcheng Zhou
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China
| | - Ju Chu
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China
| | - Siliang Zhang
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China
| | - Jiangchao Qian
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China.
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19
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Raschmanová H, Zamora I, Borčinová M, Meier P, Weninger A, Mächler D, Glieder A, Melzoch K, Knejzlík Z, Kovar K. Single-Cell Approach to Monitor the Unfolded Protein Response During Biotechnological Processes With Pichia pastoris. Front Microbiol 2019; 10:335. [PMID: 30873140 PMCID: PMC6404689 DOI: 10.3389/fmicb.2019.00335] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 02/08/2019] [Indexed: 12/13/2022] Open
Abstract
Pichia pastoris (Komagataella sp.) is broadly used for the production of secreted recombinant proteins. Due to the high rate of protein production, incorrectly folded proteins may accumulate in the endoplasmic reticulum (ER). To restore their proper folding, the cell triggers the unfolded protein response (UPR); however, if the proteins cannot be repaired, they are degraded, which impairs process productivity. Moreover, a non-producing/non-secreting subpopulation of cells might occur, which also decreases overall productivity. Therefore, an in depth understanding of intracellular protein fluxes and population heterogeneity is needed to improve productivity. Under industrially relevant cultivation conditions in bioreactors, we cultured P. pastoris strains producing three different recombinant proteins: penicillin G acylase from Escherichia coli (EcPGA), lipase B from Candida antarctica (CaLB) and xylanase A from Thermomyces lanuginosus (TlXynA). Extracellular and intracellular product concentrations were determined, along with flow cytometry-based single-cell measurements of cell viability and the up-regulation of UPR. The cell population was distributed into four clusters, two of which were viable cells with no UPR up-regulation, differing in cell size and complexity. The other two clusters were cells with impaired viability, and cells with up-regulated UPR. Over the time course of cultivation, the distribution of the population into these four clusters changed. After 30 h of production, 60% of the cells producing EcPGA, which accumulated in the cells (50-70% of the product), had up-regulated UPR, but only 13% of the cells had impaired viability. A higher proportion of cells with decreased viability was observed in strains producing CaLB (20%) and TlXynA (27%). The proportion of cells with up-regulated UPR in CaLB-producing (35%) and TlXynA-producing (30%) strains was lower in comparison to the EcPGA-producing strain, and a smaller proportion of CaLB and TlXynA (<10%) accumulated in the cells. These data provide an insight into the development of heterogeneity in a recombinant P. pastoris population during a biotechnological process. A deeper understanding of the relationship between protein production/secretion and the regulation of the UPR might be utilized in bioprocess control and optimization with respect to secretion and population heterogeneity.
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Affiliation(s)
- Hana Raschmanová
- Department of Biotechnology, University of Chemistry and Technology Prague, Prague, Czechia.,Institute of Chemistry and Biotechnology, School of Life Sciences and Facility Management, Zurich University of Applied Sciences ZHAW, Wädenswil, Switzerland
| | - Iwo Zamora
- Institute of Chemistry and Biotechnology, School of Life Sciences and Facility Management, Zurich University of Applied Sciences ZHAW, Wädenswil, Switzerland
| | - Martina Borčinová
- Institute of Chemistry and Biotechnology, School of Life Sciences and Facility Management, Zurich University of Applied Sciences ZHAW, Wädenswil, Switzerland.,Department of Genetics and Microbiology, Charles University, Prague, Czechia
| | - Patrick Meier
- Institute of Chemistry and Biotechnology, School of Life Sciences and Facility Management, Zurich University of Applied Sciences ZHAW, Wädenswil, Switzerland
| | - Astrid Weninger
- Institute of Molecular Biotechnology, Graz University of Technology, Graz, Austria
| | - Dominik Mächler
- Institute of Chemistry and Biotechnology, School of Life Sciences and Facility Management, Zurich University of Applied Sciences ZHAW, Wädenswil, Switzerland
| | - Anton Glieder
- Institute of Molecular Biotechnology, Graz University of Technology, Graz, Austria
| | - Karel Melzoch
- Department of Biotechnology, University of Chemistry and Technology Prague, Prague, Czechia
| | - Zdeněk Knejzlík
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, Czechia
| | - Karin Kovar
- Institute of Chemistry and Biotechnology, School of Life Sciences and Facility Management, Zurich University of Applied Sciences ZHAW, Wädenswil, Switzerland
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20
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Zepeda AB, Pessoa A, Farías JG. Carbon metabolism influenced for promoters and temperature used in the heterologous protein production using Pichia pastoris yeast. Braz J Microbiol 2018; 49 Suppl 1:119-127. [PMID: 29858140 PMCID: PMC6328845 DOI: 10.1016/j.bjm.2018.03.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 02/20/2018] [Accepted: 03/21/2018] [Indexed: 12/15/2022] Open
Abstract
Nowadays, it is necessary to search for different high-scale production strategies to produce recombinant proteins of economic interest. Only a few microorganisms are industrially relevant for recombinant protein production: methylotrophic yeasts are known to use methanol efficiently as the sole carbon and energy source. Pichia pastoris is a methylotrophic yeast characterized as being an economical, fast and effective system for heterologous protein expression. Many factors can affect both the product and the production, including the promoter, carbon source, pH, production volume, temperature, and many others; but to control all of them most of the time is difficult and this depends on the initial selection of each variable. Therefore, this review focuses on the selection of the best promoter in the recombination process, considering different inductors, and the temperature as a culture medium variable in methylotrophic Pichia pastoris yeast. The goal is to understand the effects associated with different factors that influence its cell metabolism and to reach the construction of an expression system that fulfills the requirements of the yeast, presenting an optimal growth and development in batch, fed-batch or continuous cultures, and at the same time improve its yield in heterologous protein production.
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Affiliation(s)
- Andrea B Zepeda
- Universidad de La Frontera, Facultad de Ingeniería, Ciencias y Administración, Departamento de Ingeniería Química, Temuco, Chile; Universidade de São Paulo, Faculdade de Ciências Farmacêuticas, Departamento de Tecnologia Bioquímico-Farmacêutica, São Paulo, Brazil
| | - Adalberto Pessoa
- Universidade de São Paulo, Faculdade de Ciências Farmacêuticas, Departamento de Tecnologia Bioquímico-Farmacêutica, São Paulo, Brazil
| | - Jorge G Farías
- Universidad de La Frontera, Facultad de Ingeniería, Ciencias y Administración, Departamento de Ingeniería Química, Temuco, Chile.
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21
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Engineering of deglycosylated and plasmin resistant variants of recombinant streptokinase in Pichia pastoris. Appl Microbiol Biotechnol 2018; 102:10561-10577. [DOI: 10.1007/s00253-018-9402-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 09/11/2018] [Accepted: 09/16/2018] [Indexed: 10/28/2022]
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22
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Improving heterologous expression of porcine follicle-stimulating hormone in Pichia pastoris by integrating molecular strategies and culture condition optimization. Appl Microbiol Biotechnol 2018; 102:8867-8882. [PMID: 30136206 DOI: 10.1007/s00253-018-9260-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 07/14/2018] [Accepted: 07/18/2018] [Indexed: 10/28/2022]
Abstract
Porcine follicle-stimulating hormone (pFSH), comprising α and β subunits, is commonly used to induce superovulation in domestic animals in assisted reproduction technologies; however, the practical application of pFSH is inhibited by the limited efficiency of its production. Recombinant yeast-derived FSH offers a practical alternative; however, the heterologous expression efficiency remains disappointingly low. To improve FSH production in Pichia pastoris, a series of molecular strategies, together with fermentation optimization, were tested in the present study. By comparing clones of the Muts phenotype strain, it was observed that the yield of soluble pFSH increased by approximately 96% in clones of the Mut+ phenotype strain. The protein levels of soluble pFSHβ, which confers biological specificity, increased by approximately 143 and 22% after two kinds of codon optimization strategies, respectively. Moreover, compared with the production of soluble pFSHβ and SUMO-pFSHβ, the production of soluble protein HSA-pFSHβ was significantly improved. Furthermore, the optimum pH and methanol concentration for expressing soluble HSA-pFSH in strain H3-3 were determined as 5.0-6.0 and 1.5-2% in shake-flask, and the yield of soluble HSA-pFSH could reach 40.8 mg/l after purification. In vitro bioactivity assays showed that recombinant HSA-pFSH could efficiently stimulate cAMP synthesis in HEK293 cells expressing porcine FSHR. In conclusion, our results demonstrated that the application of phenotypic selection of aox1 mutants, combined with codon optimization, the choice of fusion partners, and fermentation optimization, considerably increased the yield of pFSH in supernatant of P. pastoris and thus provided a valuable reference for the large-scale recombinant expression of pFSH.
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23
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Engineering folding mechanism through Hsp70 and Hsp40 chaperones for enhancing the production of recombinant human interferon gamma (rhIFN-γ) in Pichia pastoris cell factory. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.02.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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24
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Jia L, Tu T, Huai Q, Sun J, Chen S, Li X, Shi Z, Ding J. Enhancing monellin production by Pichia pastoris at low cell induction concentration via effectively regulating methanol metabolism patterns and energy utilization efficiency. PLoS One 2017; 12:e0184602. [PMID: 28981536 PMCID: PMC5628809 DOI: 10.1371/journal.pone.0184602] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 08/28/2017] [Indexed: 11/18/2022] Open
Abstract
In heterologous protein productions by P. pastoris, methanol induction is generally initiated when cell concentration reaches very high density. The alternative strategy by initiating methanol induction at lower cells concentration was also reported to be effective in easing DO control, reducing toxic by-metabolites accumulation and increasing targeted proteins titers. However, the methanol/energy regulation mechanisms are seldom reported. We theoretically analyzed the methanol/energy metabolisms in protein expression process with the strategies of initiating induction at higher or lower cells concentrations, using monellin production as a prototype. When initiating induction at lower cells concentration and controlling induction temperature at 30°C, monellin concentration reached the highest levels of 2.62~2.71 g/L, which was 2.5~4.9 fold of those obtained with the strategy of initiating induction at higher cells concentration. With the desired induction strategy, 1) carbon metabolism ratio directing into the precursors synthesis route for monellin production reached the highest level of 65%, carbon metabolism ratios towards to precursors synthesis and ATP regeneration routes were regulated at relatively balanced levels; 2) monellin synthesis was completely cell growth associated, with the largest associated coefficient and higher specific growth rate; 3) theoretical NADH (energy) utilization efficiency η was the highest, and η stayed high levels (≥0.8) during most period (89%) within induction phase to supply sufficient energy in supporting monellin synthesis.
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Affiliation(s)
- Luqiang Jia
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - Tingyong Tu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - Qiangqiang Huai
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - Jiaowen Sun
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - Shanshan Chen
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - Xin Li
- School of Biology and Pharmaceutical engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Zhongping Shi
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
- * E-mail: (ZS); (JD)
| | - Jian Ding
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
- * E-mail: (ZS); (JD)
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25
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Improvement of a fermentation process for the production of two PfAMA1-DiCo-based malaria vaccine candidates in Pichia pastoris. Sci Rep 2017; 7:11991. [PMID: 28931852 PMCID: PMC5607246 DOI: 10.1038/s41598-017-11819-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/30/2017] [Indexed: 01/25/2023] Open
Abstract
Pichia pastoris is a simple and powerful expression platform that has the ability to produce a wide variety of recombinant proteins, ranging from simple peptides to complex membrane proteins. A well-established fermentation strategy is available comprising three main phases: a batch phase, followed by a glycerol fed-batch phase that increases cell density, and finally an induction phase for product expression using methanol as the inducer. We previously used this three-phase strategy at the 15-L scale to express three different AMA1-DiCo-based malaria vaccine candidates to develop a vaccine cocktail. For two candidates, we switched to a two-phase strategy lacking the intermediate glycerol fed-batch phase. The new strategy not only provided a more convenient process flow but also achieved 1.5-fold and 2.5-fold higher space-time yields for the two candidates, respectively, and simultaneously reduced the final cell mass by a factor of 1.3, thus simplifying solid–liquid separation. This strategy also reduced the quantity of host cell proteins that remained to be separated from the two vaccine candidates (by 34% and 13%, respectively), thus reducing the effort required in the subsequent purification steps. Taken together, our new fermentation strategy increased the overall fermentation performance for the production of two different AMA1-DiCo-based vaccine candidates.
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26
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Zahrl RJ, Peña DA, Mattanovich D, Gasser B. Systems biotechnology for protein production in Pichia pastoris. FEMS Yeast Res 2017; 17:4093073. [DOI: 10.1093/femsyr/fox068] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Accepted: 08/22/2017] [Indexed: 12/31/2022] Open
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27
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Burgard J, Valli M, Graf AB, Gasser B, Mattanovich D. Biomarkers allow detection of nutrient limitations and respective supplementation for elimination in Pichia pastoris fed-batch cultures. Microb Cell Fact 2017; 16:117. [PMID: 28693509 PMCID: PMC5504661 DOI: 10.1186/s12934-017-0730-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 06/28/2017] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Industrial processes for recombinant protein production challenge production hosts, such as the yeast Pichia pastoris, on multiple levels. During a common P. pastoris fed-batch process, cells experience strong adaptations to different metabolic states or suffer from environmental stresses due to high cell density cultivation. Additionally, recombinant protein production and nutrient limitations are challenging in these processes. RESULTS Pichia pastoris producing porcine carboxypeptidase B (CpB) was cultivated in glucose or methanol-limited fed-batch mode, and the cellular response was analyzed using microarrays. Thereby, strong transcriptional regulations in transport-, regulatory- and metabolic processes connected to sulfur, phosphorus and nitrogen metabolism became obvious. The induction of these genes was observed in both glucose- and methanol- limited fed batch cultivations, but were stronger in the latter condition. As the transcriptional pattern was indicative for nutrient limitations, we performed fed-batch cultivations where we added the respective nutrients and compared them to non-supplemented cultures regarding cell growth, productivity and expression levels of selected biomarker genes. In the non-supplemented reference cultures we observed a strong increase in transcript levels of up to 89-fold for phosphorus limitation marker genes in the late fed-batch phase. Transcript levels of sulfur limitation marker genes were up to 35-fold increased. By addition of (NH4)2SO4 or (NH4)2HPO4, respectively, we were able to suppress the transcriptional response of the marker genes to levels initially observed at the start of the fed batch. Additionally, supplementation had also a positive impact on biomass generation and recombinant protein production. Supplementation with (NH4)2SO4 led to 5% increase in biomass and 52% higher CpB activity in the supernatant, compared to the non-supplemented reference cultivations. In (NH4)2HPO4 supplemented cultures 9% higher biomass concentrations and 60% more CpB activity were reached. CONCLUSIONS Transcriptional analysis of P. pastoris fed-batch cultivations led to the identification of nutrient limitations in the later phases, and respective biomarker genes for indication of limitations. Supplementation of the cultivation media with those nutrients eliminated the limitations on the transcriptional level, and was also shown to enhance productivity of a recombinant protein. The biomarker genes are versatily applicable to media and process optimization approaches, where tailor-made solutions are envisioned.
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Affiliation(s)
- Jonas Burgard
- Austrian Centre of Industrial Biotechnology, Vienna, Austria
- Department of Biotechnology, BOKU-University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Minoska Valli
- Austrian Centre of Industrial Biotechnology, Vienna, Austria
- Department of Biotechnology, BOKU-University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Alexandra B. Graf
- Department of Biotechnology, BOKU-University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
- School of Bioengineering, University of Applied Sciences FH Campus Vienna, Vienna, Austria
| | - Brigitte Gasser
- Austrian Centre of Industrial Biotechnology, Vienna, Austria
- Department of Biotechnology, BOKU-University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Diethard Mattanovich
- Austrian Centre of Industrial Biotechnology, Vienna, Austria
- Department of Biotechnology, BOKU-University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
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Li Z, Zhao G, Liu H, Guo Y, Wu H, Sun X, Wu X, Zheng Z. Biotransformation of menadione to its prenylated derivative MK-3 using recombinant Pichia pastoris. ACTA ACUST UNITED AC 2017; 44:973-985. [DOI: 10.1007/s10295-017-1931-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 02/23/2017] [Indexed: 12/17/2022]
Abstract
Abstract
Prenylated quinones, especially menaquinones, have significant physiological activities, but are arduous to synthesize efficiently. Due to the relaxed aromatic substrate specificity and prenylation regiospecificity at the ortho- site of the phenolic hydroxyl group, the aromatic prenyltransferase NovQ from Streptomyces may be useful in menaquinone synthesis from menadione. In this study, NovQ was overexpressed in Pichia pastoris. After fermentation optimization, NovQ production increased by 1617%. Then the different effects of metal ions, detergents and pH on the activity of purified NovQ were investigated to optimize the prenylation reaction. Finally, purified NovQ and cells containing NovQ were used for menadione prenylation in vitro and in vivo, respectively. Menaquinone-1 (MK-1) was detected as the only product in vitro with γ,γ-dimethylallyl pyrophosphate and menadione hydroquinol substrates. MK-3 at a concentration of 90.53 mg/L was detected as the major product of whole cell catalysis with 3-methyl-2-buten-1-ol and menadione hydroquinol substrates. This study realized whole cell catalysis converting menadione to menaquinones.
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Affiliation(s)
- Zhemin Li
- grid.454811.d 0000 0004 1792 7603 Institute of Technical Biology and Agriculture Engineering, Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science Chinese Academy of Sciences and Anhui Province 230031 Hefei Anhui People’s Republic of China
| | - Genhai Zhao
- grid.454811.d 0000 0004 1792 7603 Institute of Technical Biology and Agriculture Engineering, Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science Chinese Academy of Sciences and Anhui Province 230031 Hefei Anhui People’s Republic of China
| | - Hui Liu
- grid.454811.d 0000 0004 1792 7603 Institute of Technical Biology and Agriculture Engineering, Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science Chinese Academy of Sciences and Anhui Province 230031 Hefei Anhui People’s Republic of China
| | - Yugang Guo
- 0000000121679639 grid.59053.3a The CAS Key Laboratory of Innate Immunity and Chronic Disease, Innovation Center for Cell Biology, School of Life Sciences University of Science and Technology of China 230026 Hefei People’s Republic of China
| | - Hefang Wu
- grid.454811.d 0000 0004 1792 7603 Institute of Technical Biology and Agriculture Engineering, Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science Chinese Academy of Sciences and Anhui Province 230031 Hefei Anhui People’s Republic of China
| | - Xiaowen Sun
- grid.454811.d 0000 0004 1792 7603 Institute of Technical Biology and Agriculture Engineering, Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science Chinese Academy of Sciences and Anhui Province 230031 Hefei Anhui People’s Republic of China
| | - Xihua Wu
- grid.454811.d 0000 0004 1792 7603 Institute of Technical Biology and Agriculture Engineering, Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science Chinese Academy of Sciences and Anhui Province 230031 Hefei Anhui People’s Republic of China
| | - Zhiming Zheng
- grid.454811.d 0000 0004 1792 7603 Institute of Technical Biology and Agriculture Engineering, Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science Chinese Academy of Sciences and Anhui Province 230031 Hefei Anhui People’s Republic of China
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Obst U, Lu TK, Sieber V. A Modular Toolkit for Generating Pichia pastoris Secretion Libraries. ACS Synth Biol 2017; 6:1016-1025. [PMID: 28252957 DOI: 10.1021/acssynbio.6b00337] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Yeasts are powerful eukaryotic hosts for the production of recombinant proteins due to their rapid growth to high cell densities and ease of genetic modification. For large-scale industrial production, secretion of a protein offers the advantage of simple and efficient downstream purification that avoids costly cell rupture, denaturation and refolding. The methylotrophic yeast Pichia pastoris (Komagataella phaffi) is a well-established expression host that has the ability to perform post-translational modifications and is generally regarded as safe (GRAS). Nevertheless, optimization of protein secretion in this host remains a challenge due to the multiple steps involved during secretion and a lack of genetic tools to tune this process. Here, we developed a toolkit of standardized regulatory elements specific for Pichia pastoris allowing the tuning of gene expression and choice of protein secretion tag. As protein secretion is a complex process, these parts are compatible with a hierarchical assembly method to enable the generation of large and diverse secretion libraries in order to explore a wide range of secretion constructs, achieve successful secretion, and better understand the regulatory factors of importance to specific proteins of interest. To assess the performance of these parts, we built and characterized the expression and secretion efficiency of 124 constructs that combined different regulatory elements with two fluorescent reporter proteins (RFP, yEGFP). Intracellular expression from our promoters was comparatively independent of whether RFP or yEGFP, and whether plasmid-based expression or genomically integrated expression, was used. In contrast, secretion efficiency significantly varied for different genes expressed using identical regulatory elements, with differences in secretion efficiency of >10-fold observed. These results highlight the importance of generating diverse secretion libraries when searching for optimal expression conditions, and demonstrate that our toolkit is a valuable asset for the creation of efficient microbial cell factories.
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Affiliation(s)
- Ulrike Obst
- Straubing Centre of Science, 94315 Straubing, Germany
| | - Timothy K. Lu
- Biophysics
Program, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Volker Sieber
- Catalysis
Research Center, Technical University of Munich, 85748 Garching, Germany
- Fraunhofer IGB, Straubing Branch Bio, Electro, and
Chemocatalysis BioCat, 94315 Straubing, Germany
- Straubing Centre of Science, 94315 Straubing, Germany
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Reséndiz-Cardiel G, Arroyo R, Ortega-López J. Expression of the enzymatically active legumain-like cysteine proteinase TvLEGU-1 of Trichomonas vaginalis in Pichia pastoris. Protein Expr Purif 2017; 134:104-113. [DOI: 10.1016/j.pep.2017.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 04/04/2017] [Accepted: 04/14/2017] [Indexed: 01/11/2023]
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Eissazadeh S, Moeini H, Dezfouli MG, Heidary S, Nelofer R, Abdullah MP. Production of recombinant human epidermal growth factor in Pichia pastoris. Braz J Microbiol 2017; 48:286-293. [PMID: 27998673 PMCID: PMC5470459 DOI: 10.1016/j.bjm.2016.10.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 10/01/2016] [Accepted: 10/03/2016] [Indexed: 11/29/2022] Open
Abstract
This study was carried out to express human epidermal growth factor (hEGF) in Pichia pastoris GS115. For this aim, the hEGF gene was cloned into the pPIC9K expression vector, and then integrated into P. pastoris by electroporation. ELISA-based assay showed that the amount of hEGF secreted into the medium can be affected by the fermentation conditions especially by culture medium, pH and temperature. The best medium for the optimal hEGF production was BMMY buffered at a pH range of 6.0 and 7.0. The highest amount of hEGF with an average yield of 2.27 μg/mL was obtained through an induction of the culture with 0.5% (v/v) methanol for 60 h. The artificial neural network (ANN) analysis revealed that changes in both pH and temperature significantly affected the hEGF production with the pH change had slightly higher impact on hEGF production than variations in the temperature.
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Affiliation(s)
- Samira Eissazadeh
- Universiti Putra Malaysia, Faculty of Biotechnology and Molecular Science, Department of Cellular and Molecular Biology, Malaysia
| | - Hassan Moeini
- Universiti Putra Malaysia, Institute of Bioscience, Malaysia.
| | | | - Somayyeh Heidary
- Universiti Putra Malaysia, Faculty of Biotechnology and Molecular Science, Department of Cellular and Molecular Biology, Malaysia
| | - Rubina Nelofer
- Pakistan Council of Scientific and Industrial Research, Laboratories Complex, Lahore, Pakistan
| | - Mohd Puad Abdullah
- Universiti Putra Malaysia, Faculty of Biotechnology and Molecular Science, Department of Cellular and Molecular Biology, Malaysia
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Berrios J, Flores MO, Díaz-Barrera A, Altamirano C, Martínez I, Cabrera Z. A comparative study of glycerol and sorbitol as co-substrates in methanol-induced cultures of Pichia pastoris: temperature effect and scale-up simulation. ACTA ACUST UNITED AC 2017; 44:407-411. [DOI: 10.1007/s10295-016-1895-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 12/22/2016] [Indexed: 11/28/2022]
Abstract
Abstract
The production of recombinant proteins by Pichia pastoris under AOX1 promoter is usually performed using methanol together with either glycerol or sorbitol as co-substrate. Although both co-substrates have been widely used, comparative studies are scarce. In addition, these comparisons have been performed at different specific growth rate (µ) that it is well known that has an important effect on productivity. Thus, the effect of using these co-substrates on the production of Rhyzopus oryzae lipase (ROL) by P. pastoris was compared in continuous cultures growing at the same µ at either 22 or 30 °C. Results show that using glycerol as co-substrate led to higher volumetric productivities, and lower specific and volumetric methanol consumption rates. Scale-up simulation with 10–10,000 L bioreactor sizes indicated that glycerol produced the highest volumetric productivity of ROL with lower aeration requirements. Therefore, glycerol rises as a better option than sorbitol in ROL production.
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Affiliation(s)
- Julio Berrios
- grid.8170.e 0000000115375962 School of Biochemical Engineering Pontificia Universidad Católica de Valparaíso Av. Brasil 2085 Valparaíso Chile
| | - María-Olga Flores
- grid.8170.e 0000000115375962 School of Biochemical Engineering Pontificia Universidad Católica de Valparaíso Av. Brasil 2085 Valparaíso Chile
| | - Alvaro Díaz-Barrera
- grid.8170.e 0000000115375962 School of Biochemical Engineering Pontificia Universidad Católica de Valparaíso Av. Brasil 2085 Valparaíso Chile
| | - Claudia Altamirano
- grid.8170.e 0000000115375962 School of Biochemical Engineering Pontificia Universidad Católica de Valparaíso Av. Brasil 2085 Valparaíso Chile
| | - Irene Martínez
- grid.8170.e 0000000115375962 School of Biochemical Engineering Pontificia Universidad Católica de Valparaíso Av. Brasil 2085 Valparaíso Chile
| | - Zaida Cabrera
- grid.8170.e 0000000115375962 School of Biochemical Engineering Pontificia Universidad Católica de Valparaíso Av. Brasil 2085 Valparaíso Chile
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Production of recombinant lipase B from Candida antarctica in Pichia pastoris under control of the promoter PGK using crude glycerol from biodiesel production as carbon source. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2016.11.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ponte X, Montesinos-Seguí JL, Valero F. Bioprocess efficiency in Rhizopus oryzae lipase production by Pichia pastoris under the control of PAOX1 is oxygen tension dependent. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.08.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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35
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Faber BW, Hellwig S, Houard S, Havelange N, Drossard J, Mertens H, Croon A, Kastilan R, Byrne R, van der Werff N, van der Eijk M, Thomas AW, Kocken CHM, Remarque EJ. Production, Quality Control, Stability and Pharmacotoxicity of a Malaria Vaccine Comprising Three Highly Similar PfAMA1 Protein Molecules to Overcome Antigenic Variation. PLoS One 2016; 11:e0164053. [PMID: 27695087 PMCID: PMC5047445 DOI: 10.1371/journal.pone.0164053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 09/19/2016] [Indexed: 01/12/2023] Open
Abstract
Plasmodium falciparum apical membrane antigen 1 (PfAMA1) is a leading asexual blood stage vaccine candidate for malaria. In preparation for clinical trials, three Diversity Covering (DiCo) PfAMA1 ectodomain proteins, designed to overcome the intrinsic polymorphism that is present in PfAMA1, were produced under Good Manufacturing Practice (GMP) in Pichia pastoris. Using identical methodology, the 3 strains were cultivated in 70-L scale fed-batch fermentations and PfAMA1-DiCos were purified by two chromatography steps, an ultrafiltration/diafiltration procedure and size exclusion chromatography, resulting in highly pure (>95%) PfAMA1-DiCo1, PfAMA1 DiCo2 and PfAMA1 DiCo3, with final yields of 1.8, 1.9 and 1.3 gram, respectively. N-terminal determinations showed that approximately 50% of each of the proteins lost 12 residues from their N-terminus, in accordance with SDS-PAGE (2 main bands) and MS-data. Under reducing conditions a site of limited proteolytic cleavage within a disulphide bonded region became evident. The three proteins quantitatively bound to the mAb 4G2 that recognizes a conformational epitope, suggesting proper folding of the proteins. The lyophilized Drug Product (1:1:1 mixture of PfAMA1-DiCo1, DiCo2, DiCo3) fulfilled all pre-set release criteria (appearance, dissolution rate, identity, purity, protein content, moisture content, sub-visible particles, immuno-potency (after reconstitution with adjuvant), abnormal toxicity, sterility and endotoxin), was stable in accelerated and real-time stability studies at -20°C for over 24 months. When formulated with adjuvants selected for clinical phase I evaluation, the Drug Product did not show adverse effect in a repeated-dose toxicity study in rabbits. The Drug Product has entered a phase Ia/Ib clinical trial.
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Affiliation(s)
- Bart W. Faber
- Department of Parasitology, Biomedical Primate Research Centre, Rijswijk, The Netherlands
- * E-mail:
| | | | - Sophie Houard
- European Vaccine Initiative, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - Nicolas Havelange
- European Vaccine Initiative, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | | | | | | | | | - Richard Byrne
- Nova Laboratories Ltd., Martin House, Gloucester Crescent, Wigston, Leicester, United Kingdom
| | - Nicole van der Werff
- Department of Parasitology, Biomedical Primate Research Centre, Rijswijk, The Netherlands
| | - Marjolein van der Eijk
- Department of Parasitology, Biomedical Primate Research Centre, Rijswijk, The Netherlands
| | - Alan W. Thomas
- Department of Parasitology, Biomedical Primate Research Centre, Rijswijk, The Netherlands
| | - Clemens H. M. Kocken
- Department of Parasitology, Biomedical Primate Research Centre, Rijswijk, The Netherlands
| | - Edmond J. Remarque
- Department of Parasitology, Biomedical Primate Research Centre, Rijswijk, The Netherlands
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36
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High Cell Density Process for Constitutive Production of a Recombinant Phytase in Thermotolerant Methylotrophic Yeast Ogataea thermomethanolica Using Table Sugar as Carbon Source. Appl Biochem Biotechnol 2016; 180:1618-1634. [DOI: 10.1007/s12010-016-2191-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 07/11/2016] [Indexed: 10/21/2022]
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Müller JM, Bruhn S, Flaschel E, Friehs K, Risse JM. GAP promoter-based fed-batch production of highly bioactive core streptavidin byPichia pastoris. Biotechnol Prog 2016; 32:855-64. [DOI: 10.1002/btpr.2283] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 03/02/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Jakob Michael Müller
- Lehrstuhl Für Fermentationstechnik, Technische Fakultät, Universität Bielefeld; PF 10 01 31 Bielefeld D-33501 Germany
| | - Simon Bruhn
- Lehrstuhl Für Fermentationstechnik, Technische Fakultät, Universität Bielefeld; PF 10 01 31 Bielefeld D-33501 Germany
| | - Erwin Flaschel
- Lehrstuhl Für Fermentationstechnik, Technische Fakultät, Universität Bielefeld; PF 10 01 31 Bielefeld D-33501 Germany
| | - Karl Friehs
- Lehrstuhl Für Fermentationstechnik, Technische Fakultät, Universität Bielefeld; PF 10 01 31 Bielefeld D-33501 Germany
| | - Joe Max Risse
- Lehrstuhl Für Fermentationstechnik, Technische Fakultät, Universität Bielefeld; PF 10 01 31 Bielefeld D-33501 Germany
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Terekhov SS, Bobik TV, Mokrushina YA, Stepanova AV, Aleksandrova NM, Smirnov IV, Belogurov AA, Ponomarenko NA, Gabibov AG. Expression of DNA-Encoded Antidote to Organophosphorus Toxins in the Methylotrophic Yeast Pichia Pastoris. APPL BIOCHEM MICRO+ 2016. [DOI: 10.1134/s0003683816020162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Yadav SKR, Sahu T, Dixit A. Structural and functional characterization of recombinant napin-like protein of Momordica charantia expressed in methylotrophic yeast Pichia pastoris. Appl Microbiol Biotechnol 2016; 100:6703-6713. [PMID: 27020281 DOI: 10.1007/s00253-016-7446-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 02/22/2016] [Accepted: 03/05/2016] [Indexed: 10/22/2022]
Abstract
Napin and napin-like proteins belong to the 2S albumin seed storage family of proteins and have been shown to display a variety of biological activities. However, due to a high degree of polymorphism, purification of a single napin or napin-like protein exhibiting biological activity is extremely difficult. In the present study, we have produced the napin-like protein of Momordica charantia using the methylotrophic Pichia pastoris expression system. The recombinant napin-like protein (rMcnapin) secreted in the extracellular culture supernatant was enriched by ammonium sulfate precipitation, and purified using size exclusion chromatography at a yield of ∼290 mg/L of culture. Secondary structure analysis of the purified rMcnapin revealed it to be predominantly α-helical with minimal β strand content. CD spectroscopic and fluorescence spectroscopic analyses revealed the rMcnapin to be stable at a wide range of temperatures and pH. The rMcnapin exhibited antifungal activity against Trichoderma viride with an IC50 of ∼3.7 μg/ml and trypsin inhibitor activity with an IC50 of 4.2 μM. Thus, large amounts of homogenous preparations of the biologically active rMcnapin could be obtained at shake flask level, which is otherwise difficult from its natural source.
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Affiliation(s)
- Shailesh Kumar R Yadav
- Gene Regulation Laboratory, School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Tejram Sahu
- Gene Regulation Laboratory, School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Aparna Dixit
- Gene Regulation Laboratory, School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067, India.
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Kaushik N, Rohila D, Arora U, Raut R, Lamminmäki U, Khanna N, Batra G. Casamino acids facilitate the secretion of recombinant dengue virus serotype-3 envelope domain III in Pichia pastoris. BMC Biotechnol 2016; 16:12. [PMID: 26847361 PMCID: PMC4743106 DOI: 10.1186/s12896-016-0243-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 01/24/2016] [Indexed: 01/11/2023] Open
Abstract
Background Dengue is a viral disease spread to humans by mosquitoes. Notably, there are four serotypes of dengue viruses (DENV) that places ~40 % of the global population at risk of infection. However, lack of a suitable drug or a preventive vaccine exacerbates the matter further. Envelope domain-III (EDIII) antigen of dengue virus (DENV) has garnered much attention as a promising vaccine candidate for dengue, in addition to its use as a diagnostic intermediate. Hence developing a method for efficient production of high quality recombinant EDIII is important for research and industrial purpose. Results In this work, a Pichia pastoris system was optimized for the secretory over-expression of DENV serotype-3 EDIII under the control of methanol inducible AOX1 promoter. Temperature alone had a significant impact upon the amount of secretory EDIII, with 2.5-fold increase upon reducing the induction temperature from 30 to 20 °C. However surprisingly, supplementation of culture media with Casamino acids (CA), further augmented secretory EDIII titer, with a concomitant drop of intracellular EDIII levels at both temperatures. Though, reduction in intracellular retention of EDIII was more prominent at 20 °C than 30 °C. This suggests that CA supplementation facilitates overexpressing P. pastoris cells to secrete more EDIII by reducing the proportion retained intracellularly. Moreover, a bell-shaped correlation was observed between CA concentration and secretory EDIII titer. The maximum EDIII expression level of 187 mg/L was achieved under shake flask conditions with induction at 20 °C in the presence of 1 % CA. The overall increase in EDIII titer was ~9-fold compared to un-optimized conditions. Notably, mouse immune-sera, generated using this purified EDIII antigen, efficiently neutralized the DENV. Conclusions The strategy described herein could enable fulfilling the mounting demand for recombinant EDIII as well as lay direction to future studies on secretory expression of recombinant proteins in P. pastoris with CA as a media supplement. Electronic supplementary material The online version of this article (doi:10.1186/s12896-016-0243-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Neha Kaushik
- Centre for Biodesign and Diagnostics, Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, India.
| | - Deepak Rohila
- Centre for Biodesign and Diagnostics, Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, India.
| | - Upasana Arora
- Recombinant Gene Products Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India.
| | - Rajendra Raut
- Recombinant Gene Products Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India.
| | - Urpo Lamminmäki
- Department of Biochemistry/Biotechnology, University of Turku, Turku, Finland.
| | - Navin Khanna
- Recombinant Gene Products Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India.
| | - Gaurav Batra
- Centre for Biodesign and Diagnostics, Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, India.
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Domeradzka NE, Werten MWT, de Vries R, de Wolf FA. Production in Pichia pastoris of protein-based polymers with small heterodimer-forming blocks. Biotechnol Bioeng 2015; 113:953-60. [PMID: 26479855 DOI: 10.1002/bit.25861] [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: 06/09/2015] [Revised: 09/27/2015] [Accepted: 10/12/2015] [Indexed: 11/11/2022]
Abstract
Some combinations of leucine zipper peptides are capable of forming α-helical heterodimeric coiled coils with very high affinity. These can be used as physical cross-linkers in the design of protein-based polymers that form supramolecular structures, for example hydrogels, upon mixing solutions containing the complementary blocks. Such two-component physical networks are of interest for many applications in biomedicine, pharmaceutics, and diagnostics. This article describes the efficient secretory production of A and B type leucine zipper peptides fused to protein-based polymers in Pichia pastoris. By adjusting the fermentation conditions, we were able to significantly reduce undesirable proteolytic degradation. The formation of A-B heterodimers in mixtures of the purified products was confirmed by size exclusion chromatography. Our results demonstrate that protein-based polymers incorporating functional heterodimer-forming blocks can be produced with P. pastoris in sufficient quantities for use in future supramolecular self-assembly studies and in various applications.
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Affiliation(s)
- Natalia E Domeradzka
- Wageningen UR Food & Biobased Research, Bornse Weilanden 9, 6708 WG, Wageningen, The Netherlands.,Physical Chemistry and Soft Matter, Wageningen University and Research Centre, Dreijenplein 6, 6703 HB, Wageningen, The Netherlands
| | - Marc W T Werten
- Wageningen UR Food & Biobased Research, Bornse Weilanden 9, 6708 WG, Wageningen, The Netherlands.
| | - Renko de Vries
- Physical Chemistry and Soft Matter, Wageningen University and Research Centre, Dreijenplein 6, 6703 HB, Wageningen, The Netherlands
| | - Frits A de Wolf
- Wageningen UR Food & Biobased Research, Bornse Weilanden 9, 6708 WG, Wageningen, The Netherlands
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Markošová K, Weignerová L, Rosenberg M, Křen V, Rebroš M. Upscale of recombinant α-L-rhamnosidase production by Pichia pastoris Mut(S) strain. Front Microbiol 2015; 6:1140. [PMID: 26539173 PMCID: PMC4611059 DOI: 10.3389/fmicb.2015.01140] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 10/05/2015] [Indexed: 11/13/2022] Open
Abstract
Pichia pastoris is currently one of the most preferred microorganisms for recombinant enzyme production due to its efficient expression system. The advantages include the production of high amounts of recombinant proteins containing the appropriate posttranslational modifications and easy cultivation conditions. α-L-Rhamnosidase is a biotechnologically important enzyme in food and pharmaceutical industry, used for example in debittering of citrus fruit juices, rhamnose pruning from naringin, or enhancement of wine aromas, creating a demand for the production of an active and stable enzyme. The production of recombinant α-L-rhamnosidase cloned in the Mut(S) strain of P. pastoris KM71H was optimized. The encoding gene is located under the control of the AOX promoter, which is induced by methanol whose concentration is instrumental for these strain types. Fermentation was upscaled in bioreactors employing various media and several methanol-feeding strategies. It was found that fed batch with BSM media was more effective compared to BMMH (Buffered Methanol-complex Medium) media due to lower cost and improved biomass formation. In BSM (Basal Salt Medium) medium, the dry cell weight reached approximately 60 g/L, while in BMMH it was only 8.3 g/L, without additional glycerol, which positively influenced the amount of enzyme produced. New methanol feeding strategy, based on the level of dissolved oxygen was developed in this study. This protocol that is entirely independent on methanol monitoring was up scaled to a 19.5-L fermenter with 10-L working volume with the productivity of 13.34 mgprot/L/h and specific activity of α-L-rhamnosidase of 82 U/mg. The simplified fermentation protocol was developed for easy and effective fermentation of P. pastoris Mut(S) based on dissolved oxygen monitoring in the induction phase of an enzyme production.
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Affiliation(s)
- Kristína Markošová
- Department of Biochemical Technology, Slovak University of Technology Bratislava, Slovakia
| | - Lenka Weignerová
- Laboratory of Biotransformation, Institute of Microbiology, Academy of Sciences of the Czech Republic Prague, Czech Republic
| | - Michal Rosenberg
- Department of Biochemical Technology, Slovak University of Technology Bratislava, Slovakia
| | - Vladimír Křen
- Laboratory of Biotransformation, Institute of Microbiology, Academy of Sciences of the Czech Republic Prague, Czech Republic
| | - Martin Rebroš
- Department of Biochemical Technology, Slovak University of Technology Bratislava, Slovakia
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Kang Z, Zhang N, Zhang Y. Enhanced production of leech hyaluronidase by optimizing secretion and cultivation in Pichia pastoris. Appl Microbiol Biotechnol 2015; 100:707-17. [DOI: 10.1007/s00253-015-7056-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 09/24/2015] [Accepted: 10/02/2015] [Indexed: 12/21/2022]
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Maity N, Thawani A, Sharma A, Gautam A, Mishra S, Sahai V. Expression and Control of Codon-Optimized Granulocyte Colony-Stimulating Factor in Pichia pastoris. Appl Biochem Biotechnol 2015; 178:159-72. [PMID: 26410223 DOI: 10.1007/s12010-015-1865-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 09/15/2015] [Indexed: 11/25/2022]
Abstract
Granulocyte colony-stimulating factor (GCSF) has therapeutic applications due to its proven efficacy in different forms of neutropenia and chemotherapy-induced leucopenia. The original 564-bp nucleotide sequence from NCBI was codon optimized and assembled by overlapping PCR method comprising of 16 oligos of 50-nt length with 15 base overhang. The synthetic gene (CO-GCSF) was cloned under glucose utilizing glyceraldehyde 3-phosphate dehydrogenase (GAP) and methanol-utilizing alcohol oxidase (AOX1) promoters and expressed in Pichia pastoris SMD1168 strain. Constitutive expression under GAP resulted in cellular toxicity while AOX1 promoter controlled expression was stable. Variation in the levels of expression was observed among the transformant colonies with transformant #2 secreting up to ∼4 mg/L of GCSF. The molecular mass of the expressed GCSF in P. pastoris was ∼19.0 kDa. Quatitation of the expressed protein was carried out by a highly reproducible gel densitometric method. Effect of several operational and nutritional conditions was studied on GCSF production and the results suggest a general approach for increasing the yield of GCSF several folds (2- to 5-fold) over the standard conditions employed currently. Cultivation of the single-copy integrant in the chemically defined medium in a 5-L fermenter resulted in a volumetric productivity of ∼0.7 mg/L/h at the end of the induction phase, which was about 4-fold higher than attained in the shake flask.
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Affiliation(s)
- Nitu Maity
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Ankita Thawani
- Lilly Hall of Biological Sciences, Purdue University - West Lafayette, Indiana, USA
| | - Anshul Sharma
- Biochemical Engineering Department, University College London, London, UK
| | - Ashwani Gautam
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Saroj Mishra
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
| | - Vikram Sahai
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
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Pedro AQ, Martins LM, Dias JML, Bonifácio MJ, Queiroz JA, Passarinha LA. An artificial neural network for membrane-bound catechol-O-methyltransferase biosynthesis with Pichia pastoris methanol-induced cultures. Microb Cell Fact 2015; 14:113. [PMID: 26246150 PMCID: PMC4527236 DOI: 10.1186/s12934-015-0304-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 07/25/2015] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Membrane proteins are important drug targets in many human diseases and gathering structural information regarding these proteins encourages the pharmaceutical industry to develop new molecules using structure-based drug design studies. Specifically, membrane-bound catechol-O-methyltransferase (MBCOMT) is an integral membrane protein that catalyzes the methylation of catechol substrates and has been linked to several diseases such as Parkinson's disease and Schizophrenia. Thereby, improvements in the clinical outcome of the therapy to these diseases may come from structure-based drug design where reaching MBCOMT samples in milligram quantities are crucial for acquiring structural information regarding this target protein. Therefore, the main aim of this work was to optimize the temperature, dimethylsulfoxide (DMSO) concentration and the methanol flow-rate for the biosynthesis of recombinant MBCOMT by Pichia pastoris bioreactor methanol-induced cultures using artificial neural networks (ANN). RESULTS The optimization trials intended to evaluate MBCOMT expression by P. pastoris bioreactor cultures led to the development of a first standard strategy for MBCOMT bioreactor biosynthesis with a batch growth on glycerol until the dissolved oxygen spike, 3 h of glycerol feeding and 12 h of methanol induction. The ANN modeling of the aforementioned fermentation parameters predicted a maximum MBCOMT specific activity of 384.8 nmol/h/mg of protein at 30°C, 2.9 mL/L/H methanol constant flow-rate and with the addition of 6% (v/v) DMSO with almost 90% of healthy cells at the end of the induction phase. These results allowed an improvement of MBCOMT specific activity of 6.4-fold in comparison to that from the small-scale biosynthesis in baffled shake-flasks. CONCLUSIONS The ANN model was able to describe the effects of temperature, DMSO concentration and methanol flow-rate on MBCOMT specific activity, as shown by the good fitness between predicted and observed values. This experimental procedure highlights the potential role of chemical chaperones such as DMSO in improving yields of recombinant membrane proteins with a different topology than G-coupled receptors. Finally, the proposed ANN shows that the manipulation of classic fermentation parameters coupled with the addition of specific molecules can open and reinforce new perspectives in the optimization of P. pastoris bioprocesses for membrane proteins biosynthesis.
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Affiliation(s)
- Augusto Q Pedro
- CICS-UBI, Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Avenida Infante D. Henrique, 6201-001, Covilhã, Portugal.
| | - Luís M Martins
- CICS-UBI, Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Avenida Infante D. Henrique, 6201-001, Covilhã, Portugal.
| | - João M L Dias
- Department of Biochemistry, Cambridge System Biology Centre, University of Cambridge, Sanger Building, 80 Tennis Court Road, Cambridge, CB2 1GA, UK.
| | - Maria J Bonifácio
- Departamento de Investigação e Desenvolvimento, Bial, 4745-457, São Mamede do Coronado, Portugal.
| | - João A Queiroz
- CICS-UBI, Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Avenida Infante D. Henrique, 6201-001, Covilhã, Portugal.
| | - Luís A Passarinha
- CICS-UBI, Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Avenida Infante D. Henrique, 6201-001, Covilhã, Portugal.
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Irani ZA, Maghsoudi A, Shojaosadati SA, Motamedian E. Development and in silico analysis of a new nitrogen-limited feeding strategy for fed-batch cultures of Pichia pastoris based on a simple pH-control system. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2015.02.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Byrne B. Pichia pastoris as an expression host for membrane protein structural biology. Curr Opin Struct Biol 2015; 32:9-17. [DOI: 10.1016/j.sbi.2015.01.005] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 01/07/2015] [Accepted: 01/16/2015] [Indexed: 12/17/2022]
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Gao MJ, Zhan XB, Gao P, Zhang X, Dong SJ, Li Z, Shi ZP, Lin CC. Improving Performance and Operational Stability of Porcine Interferon-α Production by Pichia pastoris with Combinational Induction Strategy of Low Temperature and Methanol/Sorbitol Co-feeding. Appl Biochem Biotechnol 2015; 176:493-504. [PMID: 25875784 DOI: 10.1007/s12010-015-1590-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Accepted: 03/16/2015] [Indexed: 11/30/2022]
Abstract
Various induction strategies were investigated for effective porcine interferon-α (pIFN-α) production by Pichia pastoris in a 10 L fermenter. We found that pIFN-α concentration could be significantly improved with the strategies of low-temperature induction or methanol/sorbitol co-feeding. On this basis, a combinational strategy of induction at lower temperature (20 °C) with methanol/sorbitol co-feeding has been proposed for improvement of pIFN-α production. The results reveal that maximal pIFN-α concentration and antiviral activity reach the highest level of 2.7 g/L and 1.8 × 10(7) IU/mg with the proposed induction strategy, about 1.3-2.1 folds higher than those obtained with other sub-optimal induction strategies. Metabolic analysis and online multi-variable measurement results indicate that energy metabolic enrichment is responsible for the performance enhancement of pIFN-α production, as a large amount of ATP could be simultaneously produced from both formaldehyde oxidation pathway in methanol metabolism and tricarboxylic acid (TCA) cycle in sorbitol metabolism. In addition, the proposed combinational induction strategy enables P. pastoris to be resistant to high methanol concentration (42 g/L), which conceivably occur associating with the error-prone methanol over-feeding. As a result, the proposed combinational induction strategy simultaneously increased the targeted protein concentration and operational stability leading to significant improvement of pIFN-α production.
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Affiliation(s)
- Min-Jie Gao
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
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Charoenrat T, Sangprapai K, Promdonkoy P, Kocharin K, Tanapongpipat S, Roongsawang N. Enhancement of thermostable β-glucosidase production in a slow methanol utilization strain of Pichia pastoris by optimization of the specific methanol supply rate. BIOTECHNOL BIOPROC E 2015. [DOI: 10.1007/s12257-014-0686-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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50
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Spiegel H, Schinkel H, Kastilan R, Dahm P, Boes A, Scheuermayer M, Chudobová I, Maskus D, Fendel R, Schillberg S, Reimann A, Fischer R. Optimization of a multi-stage, multi-subunit malaria vaccine candidate for the production in Pichia pastoris by the identification and removal of protease cleavage sites. Biotechnol Bioeng 2014; 112:659-67. [PMID: 25335451 DOI: 10.1002/bit.25481] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 09/09/2014] [Accepted: 10/14/2014] [Indexed: 01/21/2023]
Abstract
We demonstrated the successful optimization of a recombinant multi-subunit malaria vaccine candidate protein for production in the methylotrophic yeast Pichia pastoris by the identification and subsequent removal of two protease cleavage sites. After observing protein degradation in the culture supernatant of a fed-batch fermentation, the predominant proteolytic fragment of the secreted recombinant protein was analyzed by mass spectrometry. The MS data indicated the cleavage of an amino acid sequence matching the yeast KEX2-protease consensus motif EKRE. The cleavage in this region was completely abolished by the deletion of the EKRE motif in a modified variant. This modified variant was produced, purified, and used for immunization of rabbits, inducing high antigen specific antibody titers (2 × 10(6) ). Total IgG from rabbit immune sera recognized different stages of Plasmodium falciparum parasites in immunofluorescence assays, indicating native folding of the vaccine candidate. However, the modified variant was still degraded, albeit into different fragments. Further analysis by mass spectrometry and N-terminal sequencing revealed a second cleavage site downstream of the motif PEVK. We therefore removed a 17-amino-acid stretch including the PEVK motif, resulting in the subsequent production of the full-length recombinant vaccine candidate protein without significant degradation, with a yield of 53 mg per liter culture volume. We clearly demonstrate that the proteolytic degradation of recombinant proteins by endogenous P. pastoris proteases can be prevented by the identification and removal of such cleavage sites. This strategy is particularly relevant for the production of recombinant subunit vaccines, where product yield and stability play a more important role than for the production of a stringently-defined native sequence which is necessary for most therapeutic molecules.
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Affiliation(s)
- Holger Spiegel
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Forckenbeckstrasse 6, Aachen, 52074, Germany.
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