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Ling Z, Zhang H, Chen Y, Sun L, Zhao J. A Subunit Vaccine Based on the VP2 Protein of Porcine Parvovirus 1 Induces a Strong Protective Effect in Pregnant Gilts. Vaccines (Basel) 2023; 11:1692. [PMID: 38006024 PMCID: PMC10675385 DOI: 10.3390/vaccines11111692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/12/2023] [Accepted: 10/19/2023] [Indexed: 11/26/2023] Open
Abstract
Porcine parvovirus 1 (PPV1) is one of the most prevalent pathogens that can cause reproductive disorder in sows. The VP2 protein of PPV1 is the most important immunogenic protein that induces neutralizing antibodies and protective immunity. Thus, VP2 is considered an ideal target antigen for the development of a genetically engineered PPV1 vaccine. In this study, the baculovirus transfer vector carrying the HR5-P10-VP2 expression cassette was successfully constructed with the aim of increasing the expression levels of the VP2 protein. The VP2 protein was confirmed using SDS‒PAGE and Western blot analyses. Electronic microscope analysis showed that the recombinant VP2 proteins were capable of self-assembling into VLPs with a diameter of approximately 25 nm. The immunogenicity of the VP2 subunit vaccine was evaluated in pigs. The results showed that VP2 protein emulsified with ISA 201VG adjuvant induced higher levels of HI antibodies and neutralizing antibodies than VP2 protein emulsified with IMS 1313VG adjuvant. Furthermore, the gilts immunized with the ISA 201VG 20 μg subunit vaccine acquired complete protection against PPV1 HN2019 infection. In contrast, the commercial inactivated vaccine provided incomplete protection in gilts. Therefore, the VP2 subunit vaccine is a promising genetically engineered vaccine for the prevention and control of PPV1.
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Affiliation(s)
- Zhanye Ling
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (Z.L.); (H.Z.); (Y.C.)
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Xinxin Livestock Co., Ltd., Huang-Fan Qu, Zhoukou 466600, China
| | - Huawei Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (Z.L.); (H.Z.); (Y.C.)
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Yingjin Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (Z.L.); (H.Z.); (Y.C.)
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Leqiang Sun
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (Z.L.); (H.Z.); (Y.C.)
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Junlong Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (Z.L.); (H.Z.); (Y.C.)
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
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2
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Huang J, Hu J, Zhang L, Zhao Y, Chen H, Xu X. The homologous region hr4a of Autographa californica multiple nucleopolyhedrovirus specifically enhances viral early promoters. Virus Res 2022; 315:198780. [DOI: 10.1016/j.virusres.2022.198780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/08/2022] [Accepted: 04/10/2022] [Indexed: 10/18/2022]
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3
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Zhang Q, Wu YF, Chen P, Liu TH, Dong ZQ, Lu C, Pan MH. Bombyx mori cell division cycle protein 37 promotes the proliferation of BmNPV. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 178:104923. [PMID: 34446199 DOI: 10.1016/j.pestbp.2021.104923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 07/06/2021] [Accepted: 07/11/2021] [Indexed: 06/13/2023]
Abstract
Cell division cycle protein 37 (Cdc37) is a molecular chaperone that actively participates in many intracellular physiological and biochemical processes as well as pathogen infection. However, the function of Cdc37 in silkworm cells under Bombyx mori nucleopolyhedrovirus (BmNPV) infection is unknown. We cloned and identified BmCdc37, a Cdc37 gene from B. mori, which is highly conserved among other species. After BmNPV infection, the expression level of the BmCdc37 gene was up-regulated and showed an expression pattern similar to the BmHsp90 gene, which relies on Cdc37 to stabilize and activate specific protein kinases. The immunofluorescence, bimolecular fluorescence complementation (BiFC), and co-immunoprecipitation (Co-IP) assays all indicated that BmCdc37 interacts with BmHsp90 in silkworm cells. Both BmCdc37 and BmHsp90 promote the reproduction of BmNPV. Co-expression of BmCdc37 and BmHsp90 was better at promoting virus proliferation than overexpression alone. These findings all indicate that BmCdc37 plays an active role in the proliferation of BmNPV.
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Affiliation(s)
- Qian Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China; Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400715, China
| | - Yun-Fei Wu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China; Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400715, China
| | - Peng Chen
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China; Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400715, China
| | - Tai-Hang Liu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Zhan-Qi Dong
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China; Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400715, China
| | - Cheng Lu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China; Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400715, China.
| | - Min-Hui Pan
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China; Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400715, China.
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4
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Grose C, Putman Z, Esposito D. A review of alternative promoters for optimal recombinant protein expression in baculovirus-infected insect cells. Protein Expr Purif 2021; 186:105924. [PMID: 34087362 PMCID: PMC8266756 DOI: 10.1016/j.pep.2021.105924] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 12/18/2022]
Abstract
Generating recombinant proteins in insect cells has been made possible via the use of the Baculovirus Expression Vector System (BEVS). Despite the success of many proteins via this platform, some targets remain a challenge due to issues such as cytopathic effects, the unpredictable nature of co-infection and co-expressions, and baculovirus genome instability. Many promoters have been assayed for the purpose of expressing diverse proteins in insect cells, and yet there remains a lack of implementation of those results when reviewing the landscape of commercially available baculovirus vectors. In advancing the platform to produce a greater variety of proteins and complexes, the development of such constructs cannot be avoided. A better understanding of viral gene regulation and promoter options including viral, synthetic, and insect-derived promoters will be beneficial to researchers looking to utilize BEVS by recruiting these intricate mechanisms of gene regulation for heterologous gene expression. Here we summarize some of the developments that could be utilized to improve the expression of recombinant proteins and multi-protein complexes in insect cells.
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Affiliation(s)
- Carissa Grose
- Protein Expression Laboratory, NCI RAS Initiative, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, 21702, USA.
| | - Zoe Putman
- Protein Expression Laboratory, NCI RAS Initiative, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, 21702, USA
| | - Dominic Esposito
- Protein Expression Laboratory, NCI RAS Initiative, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, 21702, USA
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5
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Schaly S, Ghebretatios M, Prakash S. Baculoviruses in Gene Therapy and Personalized Medicine. Biologics 2021; 15:115-132. [PMID: 33953541 PMCID: PMC8088983 DOI: 10.2147/btt.s292692] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 02/22/2021] [Indexed: 12/18/2022]
Abstract
This review will outline the role of baculoviruses in gene therapy and future potential in personalized medicine. Baculoviruses are a safe, non-toxic, non-integrative vector with a large cloning capacity. Baculoviruses are also a highly adaptable, low-cost vector with a broad tissue and host tropism due to their ability to infect both quiescent and proliferating cells. Moreover, they only replicate in insect cells, not mammalian cells, improving their biosafety. The beneficial properties of baculoviruses make it an attractive option for gene delivery. The use of baculoviruses in gene therapy has advanced significantly, contributing to vaccine production, anti-cancer therapies and regenerative medicine. Currently, baculoviruses are primarily used for recombinant protein production and vaccines. This review will also discuss methods to optimize baculoviruses protein production and mammalian cell entry, limitations and potential for gene therapy and personalized medicine. Limitations such as transient gene expression, complement activation and virus fragility are discussed in details as they can be overcome through further genetic modifications and other methods. This review concludes that baculoviruses are an excllent candidate for gene therapy, personalized medicine and other biotherapeutic applications.
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Affiliation(s)
- Sabrina Schaly
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine, McGill University, Montreal, Quebec, H3A 2B4, Canada
| | - Merry Ghebretatios
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine, McGill University, Montreal, Quebec, H3A 2B4, Canada
| | - Satya Prakash
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine, McGill University, Montreal, Quebec, H3A 2B4, Canada
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6
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SmartBac, a new baculovirus system for large protein complex production. JOURNAL OF STRUCTURAL BIOLOGY-X 2019; 1:100003. [PMID: 32337507 PMCID: PMC7173262 DOI: 10.1016/j.yjsbx.2019.100003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 12/28/2018] [Accepted: 01/23/2019] [Indexed: 11/20/2022]
Abstract
Recent revolution of cryo-electron microscopy has opened a new door to solve high-resolution structures of macromolecule complexes without crystallization while how to efficiently obtain homogenous macromolecule complex sample is therefore becoming a bottleneck. Here we report SmartBac, an easy and versatile system for constructing large-sized transfer plasmids used to generate recombinant baculoviruses that express large multiprotein complexes in insect cells. The SmartBac system integrates the univector plasmid-fusion system, Gibson assembly method and polyprotein strategy to construct the final transfer plasmid. The fluorescent proteins are designed co-expressed with the target to monitor transfection and expression efficiencies. A scheme of screening an optimal tagged subunit for efficient purification is provided. Six large multiprotein complexes including the human exocyst complex and dynactin complex were successfully expressed and purified, suggesting a great potential of SmartBac system for its wide application in the future.
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7
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Engineering of the baculovirus expression system for optimized protein production. Appl Microbiol Biotechnol 2018; 103:113-123. [DOI: 10.1007/s00253-018-9474-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/18/2018] [Accepted: 10/19/2018] [Indexed: 12/31/2022]
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8
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Salem TZ, Zhang F, Sahly N, Thiem S. Effect of Temporal Expression of Integral Membrane Proteins by Baculovirus Expression Vector System. Mol Biotechnol 2018; 60:576-584. [PMID: 29943147 DOI: 10.1007/s12033-018-0099-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Integral membrane proteins (IMPs) are popular target for drugs, but their resolved structures have been overlooked when compared with cytosolic proteins. The main reason is that IMPs usually need intensive post-translational modifications and they are bound to membranes, which increase the complexity of purifying or crystalizing them. Although different expression systems are used to express IMPs, baculovirus is considered one of the most successful expression systems for those proteins. Despite that, there are always unknown discrepancies in the level of IMPs expression in the baculovirus expression system. Retrospective studies have shown that expression of an immunoglobulin (anti-Chymase mouse monoclonal IgG1) driven by vp39 promoter was more efficient compared to its expression under polyhedrin (polh) promoter; however, this conclusion was not tested on different IMPs to generalize such a conclusion. In this study, the expression of eight different IMPs has been compared under vp39 and polh promoters of Autographa californica nucleopolyhedrovirus. Although different IMPs have shown different patterns of expression, the expression driven by vp39 promoter was found to be generally more efficient than the polh promoter.
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Affiliation(s)
- T Z Salem
- Biomedical Sciences, University of Science and Technology at Zewail City, October Gardens, 6th of October City, Giza, 12578, Egypt. .,Department of Microbial Genetics, AGERI, Agricultural Research Center, Giza, 12619, Egypt.
| | - F Zhang
- Department of Entomology, Michigan State University, East Lansing, MI, 48824, USA
| | - N Sahly
- Biomedical Sciences, University of Science and Technology at Zewail City, October Gardens, 6th of October City, Giza, 12578, Egypt
| | - S Thiem
- Department of Entomology, Michigan State University, East Lansing, MI, 48824, USA.,Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, 48824, USA
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Premanand B, Zhong Wee P, Prabakaran M. Baculovirus Surface Display of Immunogenic Proteins for Vaccine Development. Viruses 2018; 10:E298. [PMID: 29857561 PMCID: PMC6024371 DOI: 10.3390/v10060298] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/22/2018] [Accepted: 05/28/2018] [Indexed: 12/25/2022] Open
Abstract
Vaccination is an efficient way to prevent the occurrence of many infectious diseases in humans. To date, several viral vectors have been utilized for the generation of vaccines. Among them, baculovirus-categorized as a nonhuman viral vector-has been used in wider applications. Its versatile features, like large cloning capacity, nonreplicative nature in mammalian cells, and broad tissue tropism, hold it at an excellent position among vaccine vectors. In addition to ease and safety during swift production, recent key improvements to existing baculovirus vectors (such as inclusion of hybrid promoters, immunostimulatory elements, etc.) have led to significant improvements in immunogenicity and efficacy of surface-displayed antigens. Furthermore, some promising preclinical results have been reported that mirror the scope and practicality of baculovirus as a vaccine vector for human applications in the near future. Herein, this review provides an overview of the induced immune responses by baculovirus surface-displayed vaccines against influenza and other infectious diseases in animal models, and highlights the strategies applied to enhance the protective immune responses against the displayed antigens.
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Affiliation(s)
- Balraj Premanand
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore 117604, Singapore.
| | - Poh Zhong Wee
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore 117604, Singapore.
| | - Mookkan Prabakaran
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore 117604, Singapore.
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10
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Egashira Y, Nagatoishi S, Kiyoshi M, Ishii-Watabe A, Tsumoto K. Characterization of glycoengineered anti-HER2 monoclonal antibodies produced by using a silkworm–baculovirus expression system. J Biochem 2018; 163:481-488. [DOI: 10.1093/jb/mvy021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Accepted: 12/23/2017] [Indexed: 11/13/2022] Open
Affiliation(s)
- Yuriko Egashira
- Department of Bioengineering, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
- Protein Development Center, Sysmex Corporation, Sayama, Saitama 350-1332, Japan
| | - Satoru Nagatoishi
- Department of Bioengineering, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
- Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Masato Kiyoshi
- Division of Biological Chemistry and Biologicals, National Institute of Health Sciences, Kanagawa 210-9501, Japan
| | - Akiko Ishii-Watabe
- Division of Biological Chemistry and Biologicals, National Institute of Health Sciences, Kanagawa 210-9501, Japan
| | - Kouhei Tsumoto
- Department of Bioengineering, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
- Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
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11
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Morgado FDS, Ardisson-Araújo DMP, Ribeiro BM. Real-Time Expression Analysis of Selected Anticarsia gemmatalis multiple nucleopolyhedrovirus Gene Promoters during Infection of Permissive, Semipermissive and Nonpermissive Cell Lines. Viruses 2017; 9:E132. [PMID: 28587184 PMCID: PMC5490809 DOI: 10.3390/v9060132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Revised: 05/22/2017] [Accepted: 05/24/2017] [Indexed: 12/03/2022] Open
Abstract
Baculovirus infection follows a transcriptionally controlled sequence of gene expression that occurs by activation of different viral gene promoter sequences during infection. This sequence of promoter activation may be disrupted by cellular defenses against viral infection, which might interfere with viral progeny formation. In this work, the activity of the ie1, gp64, lef-1, vp39, p6.9 and polh promoters of the Anticarsia gemmatalis multiple nucleopolyhedrovirus was assessed during infection of permissive, semipermissive and nonpermissive cell lines by a novel methodology that detects reporter protein luminescence in real-time. This technique allowed us to characterize in rich detail the AgMNPV promoters in permissive cell lines and revealed differential profiles of expression in cells with limited permissivity that correlate well with limitations in viral DNA replication. Semipermissive and nonpermissive cell lines presented delays and restrictions in late and very late promoter expression. Cells undergoing apoptosis did not inhibit late gene expression; however, viral progeny formation is severely affected. This work demonstrates the application of the real-time luminescence detection methodology and how the promoter expression profile may be used to diagnose cellular permissivity to baculovirus infection.
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Affiliation(s)
- Fabricio da Silva Morgado
- Laboratory of Baculovirus, Cell Biology Department, University of Brasília, 70910-900 Brasília-DF, Brazil.
| | - Daniel Mendes Pereira Ardisson-Araújo
- Laboratory of Insect Virology, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, 97105-900 Santa Maria-RS, Brazil.
| | - Bergmann Morais Ribeiro
- Laboratory of Baculovirus, Cell Biology Department, University of Brasília, 70910-900 Brasília-DF, Brazil.
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12
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Martínez-Solís M, Gómez-Sebastián S, Escribano JM, Jakubowska AK, Herrero S. A novel baculovirus-derived promoter with high activity in the baculovirus expression system. PeerJ 2016; 4:e2183. [PMID: 27375973 PMCID: PMC4928464 DOI: 10.7717/peerj.2183] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 06/07/2016] [Indexed: 12/18/2022] Open
Abstract
The baculovirus expression vector system (BEVS) has been widely used to produce a large number of recombinant proteins, and is becoming one of the most powerful, robust, and cost-effective systems for the production of eukaryotic proteins. Nevertheless, as in any other protein expression system, it is important to improve the production capabilities of this vector. The orf46 viral gene was identified among the most highly abundant sequences in the transcriptome of Spodoptera exigua larvae infected with its native baculovirus, the S. exigua multiple nucleopolyhedrovirus (SeMNPV). Different sequences upstream of the orf46 gene were cloned, and their promoter activities were tested by the expression of the GFP reporter gene using the Autographa californica nucleopolyhedrovirus (AcMNPV) vector system in different insect cell lines (Sf21, Se301, and Hi5) and in larvae from S. exigua and Trichoplusia ni. The strongest promoter activity was defined by a 120 nt sequence upstream of the ATG start codon for the orf46 gene. On average, GFP expression under this new promoter was more than two fold higher than the expression obtained with the standard polyhedrin (polh) promoter. Additionally, the orf46 promoter was also tested in combination with the polh promoter, revealing an additive effect over the polh promoter activity. In conclusion, this new characterized promoter represents an excellent alternative to the most commonly used baculovirus promoters for the efficient expression of recombinant proteins using the BEVS.
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Affiliation(s)
- María Martínez-Solís
- Department of Genetics, Universitat de València, Burjassot, Spain; Estructura de Recerca Interdisciplinar en Biotecnologia i Biomedicina (ERI BIOTECMED), Universitat de València, Burjassot, Valencia, Spain
| | | | - José M Escribano
- Departamento de Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) , Madrid , Spain
| | | | - Salvador Herrero
- Department of Genetics, Universitat de València, Burjassot, Spain; Estructura de Recerca Interdisciplinar en Biotecnologia i Biomedicina (ERI BIOTECMED), Universitat de València, Burjassot, Valencia, Spain
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13
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Ardisson-Araújo DMP, Lima RN, Melo FL, Clem RJ, Huang N, Báo SN, Sosa-Gómez DR, Ribeiro BM. Genome sequence of Perigonia lusca single nucleopolyhedrovirus: insights into the evolution of a nucleotide metabolism enzyme in the family Baculoviridae. Sci Rep 2016; 6:24612. [PMID: 27273152 PMCID: PMC4895240 DOI: 10.1038/srep24612] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 04/01/2016] [Indexed: 12/19/2022] Open
Abstract
The genome of a novel group II alphabaculovirus, Perigonia lusca single nucleopolyhedrovirus (PeluSNPV), was sequenced and shown to contain 132,831 bp with 145 putative ORFs (open reading frames) of at least 50 amino acids. An interesting feature of this novel genome was the presence of a putative nucleotide metabolism enzyme-encoding gene (pelu112). The pelu112 gene was predicted to encode a fusion of thymidylate kinase (tmk) and dUTP diphosphatase (dut). Phylogenetic analysis indicated that baculoviruses have independently acquired tmk and dut several times during their evolution. Two homologs of the tmk-dut fusion gene were separately introduced into the Autographa californica multiple nucleopolyhedrovirus (AcMNPV) genome, which lacks tmk and dut. The recombinant baculoviruses produced viral DNA, virus progeny, and some viral proteins earlier during in vitro infection and the yields of viral occlusion bodies were increased 2.5-fold when compared to the parental virus. Interestingly, both enzymes appear to retain their active sites, based on separate modeling using previously solved crystal structures. We suggest that the retention of these tmk-dut fusion genes by certain baculoviruses could be related to accelerating virus replication and to protecting the virus genome from deleterious mutation.
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Affiliation(s)
- Daniel M P Ardisson-Araújo
- Laboratory of Baculovirus, Cell Biology Department, University of Brasília, Brasília, DF, Brazil.,Division of Biology, Kansas State University, Manhattan, KS, USA
| | - Rayane Nunes Lima
- Laboratory of Baculovirus, Cell Biology Department, University of Brasília, Brasília, DF, Brazil
| | - Fernando L Melo
- Laboratory of Baculovirus, Cell Biology Department, University of Brasília, Brasília, DF, Brazil
| | - Rollie J Clem
- Division of Biology, Kansas State University, Manhattan, KS, USA
| | - Ning Huang
- Division of Biology, Kansas State University, Manhattan, KS, USA
| | - Sônia Nair Báo
- Laboratory of Baculovirus, Cell Biology Department, University of Brasília, Brasília, DF, Brazil
| | | | - Bergmann M Ribeiro
- Laboratory of Baculovirus, Cell Biology Department, University of Brasília, Brasília, DF, Brazil
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14
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Cao MY, Kuang XX, Li HQ, Lei XJ, Xiao WF, Dong ZQ, Zhang J, Hu N, Chen TT, Lu C, Pan MH. Screening and optimization of an efficient Bombyx mori nucleopolyhedrovirus inducible promoter. J Biotechnol 2016; 231:72-80. [PMID: 27245143 DOI: 10.1016/j.jbiotec.2016.05.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 05/25/2016] [Accepted: 05/27/2016] [Indexed: 12/25/2022]
Abstract
Pathogen-inducible promoters have been studied extensively and widely used in resistance breeding and gene therapy. However, few reports have been published that explore the efficacy of Bombyx mori nucleopolyhedrovirus (BmNPV)-inducible promoters in antiviral research in the Bombyx mori (Lepidoptera). Here, we screened BmNPV promoters (VP1054, P33, Bm21, Bm122, 39K, P143, and P6.9) and found that the 39K promoter had the highest BmNPV-induced transcriptional activity by dual-luciferase reporter assays system. By 5' truncation analysis, two regions of 39K promoter were critical for optimal virus-inducible activity, indicated that they could serve as a candidate to produce synthetic pathogen-induced promoters. Furthermore, we enhanced the virus-inducible activity of BmNPV 39K promoter using a hybrid enhancer comprising hr3 and polh-up (designated as HP39K). Finally, we showed that RNAi regulated by HP39K promoter could significantly inhibit the proliferation of BmNPV in silkworm cells. Taken together, our results have practical value in antiviral research of silkworm and baculovirus expression system.
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Affiliation(s)
- Ming-Ya Cao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Xiu-Xiu Kuang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Hai-Qing Li
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Xue-Jiao Lei
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Wen-Fu Xiao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Zhan-Qi Dong
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Jun Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China; Institute of Life Sciences, Chongqing Medical University, Chongqing 400716, China
| | - Nan Hu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Ting-Ting Chen
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Cheng Lu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China; Key Laboratory for Sericulture Functional Genomics and Biotechnology of Agricultural Ministry, Southwest University, Chongqing 400716, China.
| | - Min-Hui Pan
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China; Key Laboratory for Sericulture Functional Genomics and Biotechnology of Agricultural Ministry, Southwest University, Chongqing 400716, China.
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15
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George S, Jauhar AM, Mackenzie J, Kieβlich S, Aucoin MG. Temporal characterization of protein production levels from baculovirus vectors coding for GFP and RFP genes under non-conventional promoter control. Biotechnol Bioeng 2015; 112:1822-31. [PMID: 25850946 DOI: 10.1002/bit.25600] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 02/20/2015] [Accepted: 03/03/2015] [Indexed: 11/08/2022]
Abstract
The ease of use and versatility of the Baculovirus Expression Vector System (BEVS) has made it one of the most widely used systems for recombinant protein production However, co-expression systems currently in use mainly make use of the very strong very late p10 and polyhedron (polh) promoters to drive expression of foreign genes, which does not provide much scope for tailoring expression ratios within the cell. This work demonstrates the use of different Autographa californica multicapsid nucleopolyhedrovirus (AcMNPV) promoters to control the timing and expression of two easily traceable fluorescent proteins, the enhanced green fluorescent protein (eGFP), and a red fluorescent protein (DsRed2) in a BEVS co-expression system. Our results show that gene expression levels can easily be controlled using this strategy, and also that modulating the expression level of one protein can influence the level of expression of the other protein within the system, thus confirming the concept of genes "competing" for limited cellular resources. Plots of "expression ratios" of the two model genes over time were obtained, and may be used in future work to tightly control timing and levels of foreign gene expression in an insect cell co-expression system.
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Affiliation(s)
- Steve George
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada, N2L3G1
| | - Altamash M Jauhar
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada, N2L3G1
| | - Jennifer Mackenzie
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada, N2L3G1
| | - Sascha Kieβlich
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada, N2L3G1
- Technical University of Braunschweig, Braunschweig, Germany
| | - Marc G Aucoin
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada, N2L3G1.
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16
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Fernandes F, Teixeira AP, Carinhas N, Carrondo MJT, Alves PM. Insect cells as a production platform of complex virus-like particles. Expert Rev Vaccines 2013; 12:225-36. [PMID: 23414412 DOI: 10.1586/erv.12.153] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Virus-like particles (VLPs) are multiprotein structures that resemble the conformation of native viruses but lack a viral genome, potentiating their application as safer and cheaper vaccines. The production of VLPs has been strongly linked with the use of insect cells and the baculovirus expression vector system, especially those particles composed of two or more structural viral proteins. In fact, this expression platform has been extensively improved over the years to address the challenges of coexpression of multiple proteins and their proper assembly into complexes in the same cell. In this article, the role of insect cell technology in the development and production of complex VLPs is overviewed; recent achievements, current bottlenecks and future trends are also highlighted.
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Affiliation(s)
- Fabiana Fernandes
- ITQB-Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
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17
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Hyper-enhanced production of foreign recombinant protein by fusion with the partial polyhedrin of nucleopolyhedrovirus. PLoS One 2013; 8:e60835. [PMID: 23593321 PMCID: PMC3621880 DOI: 10.1371/journal.pone.0060835] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 03/03/2013] [Indexed: 11/19/2022] Open
Abstract
To enhance the production efficiency of foreign protein in baculovirus expression systems, the effects of polyhedrin fragments were investigated by fusion expressing them with the enhanced green fluorescent protein (EGFP). Recombinant viruses were generated to express EGFP fused with polyhedrin fragments based on the previously reported minimal region for self-assembly and the KRKK nuclear localization signal (NLS). Fusion expressions with polyhedrin amino acids 19 to 110 and 32 to 110 lead to localization of recombinant protein into the nucleus and mediate its assembly. The marked increase of EGFP by these fusion expressions was confirmed through protein and fluorescence intensity analyses. The importance of nuclear localization for enhanced production was shown by the mutation of the NLS within the fused polyhedrin fragment. In addition, when the polyhedrin fragment fused with EGFP was not localized in the nucleus, some fragments increased the production of protein. Among these fragments, some degradation of only the fused polyhedrin was observed in the fusion of amino acids 19 to 85 and 32 to 85. The fusion of amino acids 32 to 85 may be more useful for the enhanced and intact production of recombinant protein. The production of E2 protein, which is a major antigen of classical swine fever virus, was dramatically increased by fusion expression with polyhedrin amino acids 19 to 110, and its preliminary immunogenicity was verified using experimental guinea pigs. This study suggests a new option for higher expression of useful foreign recombinant protein by using the partial polyhedrin in baculovirus.
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18
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López-Vidal J, Gómez-Sebastián S, Sánchez-Ramos I, Escribano JM. Characterization of a Trichoplusia ni hexamerin-derived promoter in the AcMNPV baculovirus vector. J Biotechnol 2013; 165:201-8. [PMID: 23578810 DOI: 10.1016/j.jbiotec.2013.03.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 03/18/2013] [Accepted: 03/21/2013] [Indexed: 12/24/2022]
Abstract
The promoter sequences of the encoding genes for the three most abundant hexamerins of the Lepidoptera Trichoplusia ni were isolated and cloned into the Autographa californica multiple nucleopolyhedrovirus (AcMNPV)-derived baculovirus expression vector. From the sequences analyzed, the DNA region driving the expression of the Basic juvenile hormone-suppressible protein 2 (BJHSP-2), denominated pB2, presented the highest promoter strength in the context of the baculovirus vector in Sf21 insect cells. This promoter activity occurred earlier in baculovirus-infected cells than that achieved by a conventional polyhedrin promoter (polh), but surprisingly stopped at 48h post-infection. A mapping of pB2 essential promoter elements determined that a region of about 400bp, denominated pB29, retained and even increased the transcriptional activity with respect to the parental full-length sequence. Finally, several chimeric combinations of the insect-derived pB2 with the virus-derived conventional polh or p10 promoters were constructed and incorporated into an AcMNPV baculovirus vector. The pB2-p10 combination showed increased recombinant protein expression at early times post-infection and similar expression levels at very late times post-infection in Sf21 cells with respect to conventional late promoters. To the best of our knowledge, pB2 is the first promoter isolated from the Lepidoptera T. ni, the natural host of AcMNPV, to be assayed in a baculovirus expression vector.
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Affiliation(s)
- Javier López-Vidal
- Alternative Gene Expression S.L. (ALGENEX), Centro Empresarial, Parque Científico y Tecnológico de la Universidad Politécnica de Madrid, Campus de Montegancedo, 28223 Pozuelo de Alarcón, Madrid, Spain
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19
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Li SF, Wang HL, Hu ZH, Deng F. Genetic modification of baculovirus expression vectors. Virol Sin 2012; 27:71-82. [PMID: 22491998 DOI: 10.1007/s12250-012-3236-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Accepted: 02/27/2012] [Indexed: 10/28/2022] Open
Abstract
As a protein expression vector, the baculovirus demonstrates many advantages over other vectors. With the development of biotechnology, baculoviral vectors have been genetically modified to facilitate high level expression of heterologous proteins in both insect and mammalian cells. These modifications include utilization of different promoters and signal peptides, deletion or replacement of viral genes for increasing protein secretion, integration of polycistronic expression cassette for producing protein complexes, and baculovirus pseudotyping, promoter accommodation or surface display for enhancing mammalian cell targeting gene delivery. This review summarizes the development and the current state of art of the baculovirus expression system. Further development of baculovirus expression systems will make them even more feasible and accessible for advanced applications.
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Affiliation(s)
- Shu-fen Li
- State Key Laboratory of Virology and Joint-Lab of Invertebrate Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China
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20
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Sokolenko S, George S, Wagner A, Tuladhar A, Andrich JMS, Aucoin MG. Co-expression vs. co-infection using baculovirus expression vectors in insect cell culture: Benefits and drawbacks. Biotechnol Adv 2012; 30:766-81. [PMID: 22297133 PMCID: PMC7132753 DOI: 10.1016/j.biotechadv.2012.01.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Revised: 01/13/2012] [Accepted: 01/17/2012] [Indexed: 12/12/2022]
Abstract
The baculovirus expression vector system (BEVS) is a versatile and powerful platform for protein expression in insect cells. With the ability to approach similar post-translational modifications as in mammalian cells, the BEVS offers a number of advantages including high levels of expression as well as an inherent safety during manufacture and of the final product. Many BEVS products include proteins and protein complexes that require expression from more than one gene. This review examines the expression strategies that have been used to this end and focuses on the distinguishing features between those that make use of single polycistronic baculovirus (co-expression) and those that use multiple monocistronic baculoviruses (co-infection). Three major areas in which researchers have been able to take advantage of co-expression/co-infection are addressed, including compound structure-function studies, insect cell functionality augmentation, and VLP production. The core of the review discusses the parameters of interest for co-infection and co-expression with time of infection (TOI) and multiplicity of infection (MOI) highlighted for the former and the choice of promoter for the latter. In addition, an overview of modeling approaches is presented, with a suggested trajectory for future exploration. The review concludes with an examination of the gaps that still remain in co-expression/co-infection knowledge and practice.
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Affiliation(s)
- Stanislav Sokolenko
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
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21
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Opportunities and challenges for the baculovirus expression system. J Invertebr Pathol 2011; 107 Suppl:S3-15. [PMID: 21784228 DOI: 10.1016/j.jip.2011.05.001] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 01/28/2011] [Accepted: 01/28/2011] [Indexed: 11/23/2022]
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22
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Usami A, Ishiyama S, Enomoto C, Okazaki H, Higuchi K, Ikeda M, Yamamoto T, Sugai M, Ishikawa Y, Hosaka Y, Koyama T, Tobita Y, Ebihara S, Mochizuki T, Asano Y, Nagaya H. Comparison of recombinant protein expression in a baculovirus system in insect cells (Sf9) and silkworm. J Biochem 2010; 149:219-27. [PMID: 21113054 DOI: 10.1093/jb/mvq138] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Using a hybrid baculovirus system, we compared the expression of 45 recombinant proteins from six categories using two models: silkworm (larvae and pupae) and an Sf9 cell line. A total of 45 proteins were successfully expressed; preparation of hybrid baculovirus was unsuccessful for one protein, and two proteins were not expressed. A similar pattern of expression was seen in both silkworm and Sf9 cells, with double and multiple bands found in immunoblotting of the precipitate of both hosts. Degraded proteins were seen only in the silkworm system (particularly in the larvae). Production was more efficient in silkworms; a single silkworm produced about 70 times more protein than 10(6) Sf9 cells in 2 ml of culture medium.
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Affiliation(s)
- Akihiro Usami
- Katakura Industries Co. Ltd, Research Institute of Biological Science, Sayama, Saitama, Japan
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