1
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Pregeljc D, Skok J, Vodopivec T, Mencin N, Krušič A, Ličen J, Nemec KŠ, Štrancar A, Sekirnik R. Increasing yield of in vitro transcription reaction with at-line high pressure liquid chromatography monitoring. Biotechnol Bioeng 2023; 120:737-747. [PMID: 36471904 DOI: 10.1002/bit.28299] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 10/27/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
The COVID-19 pandemic triggered an unprecedented rate of development of messenger ribonucleic acid (mRNA) vaccines, which are produced by in vitro transcription reactions. The latter has been the focus of intense development to increase productivity and decrease cost. Optimization of in vitro transcription (IVT) depends on understanding the impact of individual reagents on the kinetics of mRNA production and the consumption of building blocks, which is hampered by slow, low-throughput, end-point analytics. We implemented a workflow based on rapid at-line high pressure liquid chromatography (HPLC) monitoring of consumption of nucleoside triphosphates (NTPs) with concomitant production of mRNA, with a sub-3 min read-out, allowing for adjustment of IVT reaction parameters with minimal time lag. IVT was converted to fed-batch resulting in doubling the reaction yield compared to batch IVT protocol, reaching 10 mg/ml for multiple constructs. When coupled with exonuclease digestion, HPLC analytics for quantification of mRNA was extended to monitoring capping efficiency of produced mRNA. When HPLC monitoring was applied to production of an anti-reverse cap analog (ARCA)-capped mRNA construct, which requires an approximate 4:1 ARCA:guanidine triphosphate ratio, the optimized fed-batch approach achieved productivity of 9 mg/ml with 79% capping. The study provides a methodological platform for optimization of factors influencing IVT reactions, converting the reaction from batch to fed-batch mode, determining reaction kinetics, which are critical for optimization of continuous addition of reagents, thus in principle enabling continuous manufacturing of mRNA.
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Affiliation(s)
- Domen Pregeljc
- BIA Separations d.o.o., a Sartorius Company, Ajdovščina, Slovenia
| | - Janja Skok
- BIA Separations d.o.o., a Sartorius Company, Ajdovščina, Slovenia
| | - Tina Vodopivec
- BIA Separations d.o.o., a Sartorius Company, Ajdovščina, Slovenia
| | - Nina Mencin
- BIA Separations d.o.o., a Sartorius Company, Ajdovščina, Slovenia
| | - Andreja Krušič
- BIA Separations d.o.o., a Sartorius Company, Ajdovščina, Slovenia
| | - Jure Ličen
- BIA Separations d.o.o., a Sartorius Company, Ajdovščina, Slovenia
| | - Kristina Š Nemec
- BIA Separations d.o.o., a Sartorius Company, Ajdovščina, Slovenia
| | - Aleš Štrancar
- BIA Separations d.o.o., a Sartorius Company, Ajdovščina, Slovenia
| | - Rok Sekirnik
- BIA Separations d.o.o., a Sartorius Company, Ajdovščina, Slovenia
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2
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Chiba CH, Knirsch MC, Azzoni AR, Moreira AR, Stephano MA. Cell-free protein synthesis: advances on production process for biopharmaceuticals and immunobiological products. Biotechniques 2021; 70:126-133. [PMID: 33467890 DOI: 10.2144/btn-2020-0155] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Biopharmaceutical products are of great importance in the treatment or prevention of many diseases and represent a growing share of the global pharmaceutical market. The usual technology for protein synthesis (cell-based expression) faces certain obstacles, especially with 'difficult-to-express' proteins. Cell-free protein synthesis (CFPS) can overcome the main bottlenecks of cell-based expression. This review aims to present recent advances in the production process of biologic products by CFPS. First, key aspects of CFPS systems are summarized. A description of several biologic products that have been successfully produced using the CFPS system is provided. Finally, the CFPS system's ability to scale up and scale down, its main limitations and its application for biologics production are discussed.
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Affiliation(s)
- Camila Hiromi Chiba
- Departamento de Tecnologia Bioquímico-Farmacêutica, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, Brazil
| | - Marcos Camargo Knirsch
- Departamento de Tecnologia Bioquímico-Farmacêutica, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, Brazil
| | - Adriano Rodrigues Azzoni
- Departamento de Engenharia Química, Escola Politécnica, Universidade de São Paulo, São Paulo, Brazil
| | - Antonio R Moreira
- Department of Chemical, Biochemical & Environmental Engineering, University of Maryland Baltimore County, Baltimore, MD, USA
| | - Marco Antonio Stephano
- Departamento de Tecnologia Bioquímico-Farmacêutica, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, Brazil
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3
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Effects of viral promoters, the Woodchuck hepatitis post-transcriptional regulatory element, and weakened antibiotic resistance markers on transgene expression in Chinese hamster ovary cells. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Andar A, Hasan MS, Srinivasan V, Al-Adhami M, Gutierrez E, Burgenson D, Ge X, Tolosa L, Kostov Y, Rao G. Wood Microfluidics. Anal Chem 2019; 91:11004-11012. [PMID: 31361950 DOI: 10.1021/acs.analchem.9b01232] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
As nonbiodegradable plastics continue to pollute our land and oceans, countries are starting to ban the use of single-use plastics. In this paper, we demonstrated the fabrication of wood-based microfluidic devices and their adaptability for single-use, point-of-care (POC) applications. These devices are made from easily sourced renewable materials for fabrication while exhibiting all the advantages of plastic devices without the problem of nonbiodegradable waste and cost. To build these wood devices, we utilized laser engraving and traditional mechanical methods and have adapted specific surface coatings to counter the wicking effect of wood. To demonstrate their versatility, wood microfluidic devices were adapted for (i) surface plasmon coupled enhancement (SPCE) of fluorescence for detection of proteins, (ii) T-/Y-geometry microfluidic channel mixers, and (iii) devices for rapid detection of microbial contamination. These provide proof of concept for the use of wooden platforms for POC applications. In this study, we measured the fluorescence intensities of recombinant green fluorescent protein (GFP) standards (ranging from 1.5-25 ng/μL) and 6XHis-G-CSF (ranging from 0.1-100 ng/μL) expressed in cell-free translation systems. All tested devices perform as well as or better than their plastic counterparts.
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Affiliation(s)
- Abhay Andar
- Center for Advanced Sensor Technology, Department of Chemical, Biochemical and Environmental Engineering , University of Maryland , Baltimore County, 1000 Hilltop Circle , Baltimore , Maryland 21250 , United States
| | - Md-Sadique Hasan
- Center for Advanced Sensor Technology, Department of Chemical, Biochemical and Environmental Engineering , University of Maryland , Baltimore County, 1000 Hilltop Circle , Baltimore , Maryland 21250 , United States
| | - Venkatesh Srinivasan
- Center for Advanced Sensor Technology, Department of Chemical, Biochemical and Environmental Engineering , University of Maryland , Baltimore County, 1000 Hilltop Circle , Baltimore , Maryland 21250 , United States
| | - Mustafa Al-Adhami
- Center for Advanced Sensor Technology, Department of Chemical, Biochemical and Environmental Engineering , University of Maryland , Baltimore County, 1000 Hilltop Circle , Baltimore , Maryland 21250 , United States
| | - Erick Gutierrez
- Center for Advanced Sensor Technology, Department of Chemical, Biochemical and Environmental Engineering , University of Maryland , Baltimore County, 1000 Hilltop Circle , Baltimore , Maryland 21250 , United States
| | - David Burgenson
- Center for Advanced Sensor Technology, Department of Chemical, Biochemical and Environmental Engineering , University of Maryland , Baltimore County, 1000 Hilltop Circle , Baltimore , Maryland 21250 , United States
| | - Xudong Ge
- Center for Advanced Sensor Technology, Department of Chemical, Biochemical and Environmental Engineering , University of Maryland , Baltimore County, 1000 Hilltop Circle , Baltimore , Maryland 21250 , United States
| | - Leah Tolosa
- Center for Advanced Sensor Technology, Department of Chemical, Biochemical and Environmental Engineering , University of Maryland , Baltimore County, 1000 Hilltop Circle , Baltimore , Maryland 21250 , United States
| | - Yordan Kostov
- Center for Advanced Sensor Technology, Department of Chemical, Biochemical and Environmental Engineering , University of Maryland , Baltimore County, 1000 Hilltop Circle , Baltimore , Maryland 21250 , United States
| | - Govind Rao
- Center for Advanced Sensor Technology, Department of Chemical, Biochemical and Environmental Engineering , University of Maryland , Baltimore County, 1000 Hilltop Circle , Baltimore , Maryland 21250 , United States
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5
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Andar AU, Deldari S, Gutierrez E, Burgenson D, Al-Adhami M, Gurramkonda C, Tolosa L, Kostov Y, Frey DD, Rao G. Low-cost customizable microscale toolkit for rapid screening and purification of therapeutic proteins. Biotechnol Bioeng 2018; 116:870-881. [PMID: 30450616 DOI: 10.1002/bit.26876] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 10/26/2018] [Accepted: 11/12/2018] [Indexed: 12/22/2022]
Abstract
Biopharmaceutical separations require tremendous amounts of optimization to achieve acceptable product purity. Typically, large volumes of reagents and biological materials are needed for testing different parameters, thus adding to the expense of biopharmaceutical process development. This study demonstrates a versatile and customizable microscale column (µCol) for biopharmaceutical separations using immobilized metal affinity chromatography (IMAC) as an example application to identify key parameters. µCols have excellent precision, efficiency, and reproducibility, can accommodate any affinity, ion-exchange or size-exclusion-based resin and are compatible with any high-performance liquid chromatography (HPLC) system. µCols reduce reagent amounts, provide comparable purification performance and high-throughput, and are easy to automate compared with current conventional resin columns. We provide a detailed description of the fabrication methods, resin packing methods, and µCol validation experiments using a conventional HPLC system. Finite element modeling using COMSOL Multiphysics was used to validate the experimental performance of the µCols. In this study, µCols were used for improving the purification achieved for granulocyte colony stimulating factor (G-CSF) expressed using a cell-free CHO in vitro translation (IVT) system and were compared to a conventional 1 ml IMAC column. Experimental data revealed comparable purity with a 10-fold reduction in the amount of buffer, resin, and purification time for the μCols compared with conventional columns for similar protein yields.
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Affiliation(s)
- Abhay U Andar
- Center for Advanced Sensor Technology, University of Maryland, Baltimore County, Baltimore, Maryland
| | - Sevda Deldari
- Department of Chemical, Biochemical and Environmental Engineering, University of Maryland, Baltimore County, Baltimore, Maryland
| | - Erick Gutierrez
- Center for Advanced Sensor Technology, University of Maryland, Baltimore County, Baltimore, Maryland
| | - David Burgenson
- Center for Advanced Sensor Technology, University of Maryland, Baltimore County, Baltimore, Maryland
| | - Mustafa Al-Adhami
- Center for Advanced Sensor Technology, University of Maryland, Baltimore County, Baltimore, Maryland
| | - Chandrasekhar Gurramkonda
- Center for Advanced Sensor Technology, University of Maryland, Baltimore County, Baltimore, Maryland
| | - Leah Tolosa
- Center for Advanced Sensor Technology, University of Maryland, Baltimore County, Baltimore, Maryland
| | - Yordan Kostov
- Center for Advanced Sensor Technology, University of Maryland, Baltimore County, Baltimore, Maryland
| | - Douglas D Frey
- Department of Chemical, Biochemical and Environmental Engineering, University of Maryland, Baltimore County, Baltimore, Maryland
| | - Govind Rao
- Center for Advanced Sensor Technology, University of Maryland, Baltimore County, Baltimore, Maryland.,Department of Chemical, Biochemical and Environmental Engineering, University of Maryland, Baltimore County, Baltimore, Maryland
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6
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Des Soye BJ, Davidson SR, Weinstock MT, Gibson DG, Jewett MC. Establishing a High-Yielding Cell-Free Protein Synthesis Platform Derived from Vibrio natriegens. ACS Synth Biol 2018; 7:2245-2255. [PMID: 30107122 DOI: 10.1021/acssynbio.8b00252] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A new wave of interest in cell-free protein synthesis (CFPS) systems has shown their utility for producing proteins at high titers, establishing genetic regulatory element libraries ( e.g., promoters, ribosome binding sites) in nonmodel organisms, optimizing biosynthetic pathways before implementation in cells, and sensing biomarkers for diagnostic applications. Unfortunately, most previous efforts have focused on a select few model systems, such as Escherichia coli. Broadening the spectrum of organisms used for CFPS promises to better mimic host cell processes in prototyping applications and open up new areas of research. Here, we describe the development and characterization of a facile CFPS platform based on lysates derived from the fast-growing bacterium Vibrio natriegens, which is an emerging host organism for biotechnology. We demonstrate robust preparation of highly active extracts using sonication, without specialized and costly equipment. After optimizing the extract preparation procedure and cell-free reaction conditions, we show synthesis of 1.6 ± 0.05 g/L of superfolder green fluorescent protein in batch mode CFPS, making it competitive with existing E. coli CFPS platforms. To showcase the flexibility of the system, we demonstrate that it can be lyophilized and retain biosynthesis capability, that it is capable of producing antimicrobial peptides, and that our extract preparation procedure can be coupled with the recently described Vmax Express strain in a one-pot system. Finally, to further increase system productivity, we explore a knockout library in which putative negative effectors of CFPS are genetically removed from the source strain. Our V. natriegens-derived CFPS platform is versatile and simple to prepare and use. We expect it will facilitate expansion of CFPS systems into new laboratories and fields for compelling applications in synthetic biology.
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Affiliation(s)
| | | | | | - Daniel G. Gibson
- Synthetic Genomics, Inc., La Jolla, California 92037, United States
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7
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Point-of-care production of therapeutic proteins of good-manufacturing-practice quality. Nat Biomed Eng 2018; 2:675-686. [DOI: 10.1038/s41551-018-0259-1] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 06/06/2018] [Indexed: 12/19/2022]
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8
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Garcia DC, Mohr BP, Dovgan JT, Hurst GB, Standaert RF, Doktycz MJ. Elucidating the potential of crude cell extracts for producing pyruvate from glucose. Synth Biol (Oxf) 2018; 3:ysy006. [PMID: 32995514 PMCID: PMC7445776 DOI: 10.1093/synbio/ysy006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 03/23/2018] [Accepted: 04/19/2018] [Indexed: 01/05/2023] Open
Abstract
Living systems possess a rich biochemistry that can be harnessed through metabolic engineering to produce valuable therapeutics, fuels and fine chemicals. In spite of the tools created for this purpose, many organisms tend to be recalcitrant to modification or difficult to optimize. Crude cellular extracts, made by lysis of cells, possess much of the same biochemical capability, but in an easier to manipulate context. Metabolic engineering in crude extracts, or cell-free metabolic engineering, can harness these capabilities to feed heterologous pathways for metabolite production and serve as a platform for pathway optimization. However, the inherent biochemical potential of a crude extract remains ill-defined, and consequently, the use of such extracts can result in inefficient processes and unintended side products. Herein, we show that changes in cell growth conditions lead to changes in the enzymatic activity of crude cell extracts and result in different abilities to produce the central biochemical precursor pyruvate when fed glucose. Proteomic analyses coupled with metabolite measurements uncover the diverse biochemical capabilities of these different crude extract preparations and provide a framework for how analytical measurements can be used to inform and improve crude extract performance. Such informed developments can allow enrichment of crude extracts with pathways that promote or deplete particular metabolic processes and aid in the metabolic engineering of defined products.
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Affiliation(s)
- David C Garcia
- Bredesen Center for Interdisciplinary Research, University of Tennessee, Knoxville, TN, USA.,Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Benjamin P Mohr
- Bredesen Center for Interdisciplinary Research, University of Tennessee, Knoxville, TN, USA.,Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Jakob T Dovgan
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Gregory B Hurst
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | | | - Mitchel J Doktycz
- Bredesen Center for Interdisciplinary Research, University of Tennessee, Knoxville, TN, USA.,Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
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9
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Gurramkonda C, Rao A, Borhani S, Pilli M, Deldari S, Ge X, Pezeshk N, Han TC, Tolosa M, Kostov Y, Tolosa L, Wood DW, Vattem K, Frey DD, Rao G. Improving the recombinant human erythropoietin glycosylation using microsome supplementation in CHO cell-free system. Biotechnol Bioeng 2018; 115:1253-1264. [PMID: 29384203 DOI: 10.1002/bit.26554] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 11/28/2017] [Accepted: 01/22/2018] [Indexed: 12/19/2022]
Abstract
Cell-Free Protein Synthesis (CFPS) offers many advantages for the production of recombinant therapeutic proteins using the CHO cell-free system. However, many complex proteins are still difficult to express using this method. To investigate the current bottlenecks in cell-free glycoprotein production, we chose erythropoietin (40% glycosylated), an essential endogenous hormone which stimulates the development of red blood cells. Here, we report the production of recombinant erythropoietin (EPO) using CHO cell-free system. Using this method, EPO was expressed and purified with a twofold increase in yield when the cell-free reaction was supplemented with CHO microsomes. The protein was purified to near homogeneity using an ion-metal affinity column. We were able to analyze the expressed and purified products (glycosylated cell-free EPO runs at 25-28 kDa, and unglycosylated protein runs at 20 kDa on an SDS-PAGE), identifying the presence of glycan moieties by PNGase shift assay. The purified protein was predicted to have ∼2,300 IU in vitro activity. Additionally, we tested the presence and absence of sugars on the cell-free EPO using a lectin-based assay system. The results obtained in this study indicate that microsomes augmented in vitro production of the glycoprotein is useful for the rapid production of single doses of a therapeutic glycoprotein drug and to rapidly screen glycoprotein constructs in the development of these types of drugs. CFPS is useful for implementing a lectin-based method for rapid screening and detection of glycan moieties, which is a critical quality attribute in the industrial production of therapeutic glycoproteins.
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Affiliation(s)
- Chandrasekhar Gurramkonda
- Center for Advanced Sensor Technology (CAST) and Department of Chemical Biochemical and Environmental Engineering (CBEE), University of Maryland Baltimore County, Baltimore, Maryland
| | - Aniruddha Rao
- Center for Advanced Sensor Technology (CAST) and Department of Chemical Biochemical and Environmental Engineering (CBEE), University of Maryland Baltimore County, Baltimore, Maryland
| | - Shayan Borhani
- Center for Advanced Sensor Technology (CAST) and Department of Chemical Biochemical and Environmental Engineering (CBEE), University of Maryland Baltimore County, Baltimore, Maryland
| | - Manohar Pilli
- Center for Advanced Sensor Technology (CAST) and Department of Chemical Biochemical and Environmental Engineering (CBEE), University of Maryland Baltimore County, Baltimore, Maryland
| | - Sevda Deldari
- Center for Advanced Sensor Technology (CAST) and Department of Chemical Biochemical and Environmental Engineering (CBEE), University of Maryland Baltimore County, Baltimore, Maryland
| | - Xudong Ge
- Center for Advanced Sensor Technology (CAST) and Department of Chemical Biochemical and Environmental Engineering (CBEE), University of Maryland Baltimore County, Baltimore, Maryland
| | - Niloufar Pezeshk
- Center for Advanced Sensor Technology (CAST) and Department of Chemical Biochemical and Environmental Engineering (CBEE), University of Maryland Baltimore County, Baltimore, Maryland
| | - Tzu-Chiang Han
- Department of Chemical and Biomolecular Engineering, Ohio State University, Columbus, Ohio
| | - Michael Tolosa
- Center for Advanced Sensor Technology (CAST) and Department of Chemical Biochemical and Environmental Engineering (CBEE), University of Maryland Baltimore County, Baltimore, Maryland
| | - Yordan Kostov
- Center for Advanced Sensor Technology (CAST) and Department of Chemical Biochemical and Environmental Engineering (CBEE), University of Maryland Baltimore County, Baltimore, Maryland
| | - Leah Tolosa
- Center for Advanced Sensor Technology (CAST) and Department of Chemical Biochemical and Environmental Engineering (CBEE), University of Maryland Baltimore County, Baltimore, Maryland
| | - David W Wood
- Department of Chemical and Biomolecular Engineering, Ohio State University, Columbus, Ohio
| | | | - Douglas D Frey
- Center for Advanced Sensor Technology (CAST) and Department of Chemical Biochemical and Environmental Engineering (CBEE), University of Maryland Baltimore County, Baltimore, Maryland
| | - Govind Rao
- Center for Advanced Sensor Technology (CAST) and Department of Chemical Biochemical and Environmental Engineering (CBEE), University of Maryland Baltimore County, Baltimore, Maryland
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10
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Hurst GB, Asano KG, Doktycz CJ, Consoli EJ, Doktycz WL, Foster CM, Morrell-Falvey JL, Standaert RF, Doktycz MJ. Proteomics-Based Tools for Evaluation of Cell-Free Protein Synthesis. Anal Chem 2017; 89:11443-11451. [DOI: 10.1021/acs.analchem.7b02555] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Robert F. Standaert
- University of Tennessee, Department of Biochemistry & Cellular and Molecular Biology, Knoxville, Tennessee 37996, United States
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11
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Tran K, Gurramkonda C, Cooper MA, Pilli M, Taris JE, Selock N, Han T, Tolosa M, Zuber A, Peñalber‐Johnstone C, Dinkins C, Pezeshk N, Kostov Y, Frey DD, Tolosa L, Wood DW, Rao G. Cell‐free production of a therapeutic protein: Expression, purification, and characterization of recombinant streptokinase using a CHO lysate. Biotechnol Bioeng 2017; 115:92-102. [DOI: 10.1002/bit.26439] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 08/09/2017] [Accepted: 08/21/2017] [Indexed: 02/05/2023]
Affiliation(s)
- Kevin Tran
- Center for Advanced Sensor TechnologyUniversity of Maryland Baltimore CountyBaltimoreMaryland
| | | | - Merideth A. Cooper
- Department of Chemical and Biomolecular EngineeringOhio State UniversityColumbusOhio
| | - Manohar Pilli
- Center for Advanced Sensor TechnologyUniversity of Maryland Baltimore CountyBaltimoreMaryland
| | - Joseph E. Taris
- Department of Chemical and Biomolecular EngineeringOhio State UniversityColumbusOhio
| | - Nicholas Selock
- Center for Advanced Sensor TechnologyUniversity of Maryland Baltimore CountyBaltimoreMaryland
| | - Tzu‐Chiang Han
- Department of Chemical and Biomolecular EngineeringOhio State UniversityColumbusOhio
| | - Michael Tolosa
- Center for Advanced Sensor TechnologyUniversity of Maryland Baltimore CountyBaltimoreMaryland
| | - Adil Zuber
- Center for Advanced Sensor TechnologyUniversity of Maryland Baltimore CountyBaltimoreMaryland
| | | | - Christina Dinkins
- Center for Advanced Sensor TechnologyUniversity of Maryland Baltimore CountyBaltimoreMaryland
| | - Niloufar Pezeshk
- Center for Advanced Sensor TechnologyUniversity of Maryland Baltimore CountyBaltimoreMaryland
| | - Yordan Kostov
- Center for Advanced Sensor TechnologyUniversity of Maryland Baltimore CountyBaltimoreMaryland
| | - Douglas D. Frey
- Center for Advanced Sensor TechnologyUniversity of Maryland Baltimore CountyBaltimoreMaryland
| | - Leah Tolosa
- Center for Advanced Sensor TechnologyUniversity of Maryland Baltimore CountyBaltimoreMaryland
| | - David W. Wood
- Department of Chemical and Biomolecular EngineeringOhio State UniversityColumbusOhio
| | - Govind Rao
- Center for Advanced Sensor TechnologyUniversity of Maryland Baltimore CountyBaltimoreMaryland
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12
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Stech M, Nikolaeva O, Thoring L, Stöcklein WFM, Wüstenhagen DA, Hust M, Dübel S, Kubick S. Cell-free synthesis of functional antibodies using a coupled in vitro transcription-translation system based on CHO cell lysates. Sci Rep 2017; 7:12030. [PMID: 28931913 PMCID: PMC5607253 DOI: 10.1038/s41598-017-12364-w] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 09/07/2017] [Indexed: 11/09/2022] Open
Abstract
Antibodies are indispensable tools for basic research as well as diagnostic and therapeutic applications. Consequently, the development of alternative manufacturing strategies which circumvent the hurdles connected to conventional antibody production technologies is of enormous interest. To address this issue, we demonstrate the synthesis of complex antibody formats, in particular immunoglobulin G (IgG) and single-chain variable fragment Fc fusion (scFv-Fc), in a microsome-containing cell-free system based on translationally active chinese hamster ovary (CHO) cell lysates. To mimic the environment for antibody folding and assembly present in living cells, antibody genes were fused to an endoplasmic reticulum (ER)-specific signal sequence. Signal-peptide induced translocation of antibody polypeptide chains into the lumen of ER microsomes was found to be the prerequisite for antibody chain assembly and functionality. In this context, we show the rapid synthesis of antibody molecules in different reaction formats, including batch and continuous-exchange cell-free (CECF) reactions, depending on the amount of protein needed for further analysis. In addition, we demonstrate site-specific and residue-specific labeling of antibodies with fluorescent non-canonical amino acids. In summary, our study describes a novel antibody production platform which combines the highly efficient mammalian protein folding machinery of CHO cells with the benefits of cell-free protein synthesis.
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Affiliation(s)
- M Stech
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Am Mühlenberg 13, 14476, Potsdam, Germany
| | - O Nikolaeva
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Am Mühlenberg 13, 14476, Potsdam, Germany.,Technische Universität Berlin, Institut für Biotechnologie, Medizinische Biotechnologie, Gustav-Meyer-Allee 25, 13355, Berlin, Germany
| | - L Thoring
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Am Mühlenberg 13, 14476, Potsdam, Germany.,Technische Universität Berlin, Institut für Biotechnologie, Medizinische Biotechnologie, Gustav-Meyer-Allee 25, 13355, Berlin, Germany
| | - W F M Stöcklein
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Am Mühlenberg 13, 14476, Potsdam, Germany
| | - D A Wüstenhagen
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Am Mühlenberg 13, 14476, Potsdam, Germany
| | - M Hust
- Technische Universität Braunschweig, Institute for Biochemistry, Biotechnology and Bioinformatics, Department of Biotechnology, Spielmannstr. 7, 38106, Braunschweig, Germany
| | - S Dübel
- Technische Universität Braunschweig, Institute for Biochemistry, Biotechnology and Bioinformatics, Department of Biotechnology, Spielmannstr. 7, 38106, Braunschweig, Germany
| | - S Kubick
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Am Mühlenberg 13, 14476, Potsdam, Germany.
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