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Vu TL, Nguyen TKO, Song JA, Chong S, Choe H. Enhanced prokaryotic expression, purification, and biological activities of human keratinocyte growth factor. J Biotechnol 2024; 386:42-51. [PMID: 38552676 DOI: 10.1016/j.jbiotec.2024.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 03/19/2024] [Accepted: 03/24/2024] [Indexed: 04/04/2024]
Abstract
Keratinocyte growth factor (KGF), also known as fibroblast growth factor 7 (FGF7), plays a critical role in embryonic development, cell proliferation, and differentiation. However, efficient production of recombinant KGF remains a challenge due to its low expression levels and high tendency for aggregation in Escherichia coli. This study aimed to enhance the expression and solubility of KGF by employing different protein tags-PDIb'a', MBP, and His-fused to the N-terminus of KGF. Among these, H-PDIb'a'-KGF demonstrated superior stability and was selected for large-scale production and purification. The purified KGF was confirmed through liquid chromatography with tandem mass spectrometry analysis, which showed an 81% fragment mass identification coverage. Biological activity assessments using human breast cancer MCF-7 cells indicated that purified KGF significantly increased cell proliferation, with an EC50 of 6.4 ± 0.5 pM. Interestingly, PDIb'a' alone also exhibited a stimulatory effect on MCF-7 cells. Furthermore, the purified KGF enhanced the wound healing of HaCaT keratinocytes in a dose-dependent manner. These findings provide valuable insights into the efficient production and functional characterization of recombinant KGF for potential applications in therapeutic interventions.
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Affiliation(s)
- Thi Luong Vu
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea
| | - Thi Kieu Oanh Nguyen
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea
| | - Jung-A Song
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea
| | - Seonha Chong
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea
| | - Han Choe
- Department of Physiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, South Korea.
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Ye B, Zhao Z, Yue D, Li P, Wang L, Zhang B, Fan Q. Construction of the Antheraea pernyi (Lepidoptera: Saturniidae) Multicapsid Nucleopolyhedrovirus Bacmid System. JOURNAL OF INSECT SCIENCE (ONLINE) 2020; 20:5. [PMID: 32936894 PMCID: PMC7494183 DOI: 10.1093/jisesa/ieaa088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Indexed: 06/11/2023]
Abstract
In this study, we established the Antheraea pernyi multicapsid nucleopolyhedrovirus (AnpeNPV) bacmid system for the construction of a Bac-to-Bac expression system and the generation of virus mutants. The CopyRight pSMART BAC cloning vector harboring the chloramphenicol resistance gene was introduced into the AnpeNPV genome to produce the AnpeNPV bacmid that could be propagated in Escherichia coli with stable replication. The enhanced green fluorescent protein (EGFP) was successfully expressed in both Tn-Hi5 cells and A. pernyi pupae using the AnpeNPV Bac-to-Bac expression system. To generate the AnpeNPV mutants, we developed the AnpeNPV bacmid/λ Red recombination system that facilitated the deletion of viral genes from the AnpeNPV genome. The genes cathepsin and chitinase were deleted and a derivative AnpeNPV Bac-to-Bac expression system was constructed. Furthermore, we demonstrated that the novel expression system could be used to express human epidermal growth factor in A. pernyi pupae. Taken together, the AnpeNPV bacmid system provides a powerful tool to create the AnpeNPV Bac-to-Bac expression system for protein expression in A. pernyi pupae. Further, it helps to knock-out genes from the AnpeNPV genome with λ Red recombination system for identification of the role of viral genes involved in regulating gene expression, DNA replication, virion structure, and infectivity during the AnpeNPV infection process.
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Affiliation(s)
- Bo Ye
- Liaoning Ocean and Fisheries Science Research Institute, Liaoning Academy of Agricultural Sciences, Dalian, China
| | - Zhenjun Zhao
- Liaoning Ocean and Fisheries Science Research Institute, Liaoning Academy of Agricultural Sciences, Dalian, China
| | - Dongmei Yue
- Liaoning Ocean and Fisheries Science Research Institute, Liaoning Academy of Agricultural Sciences, Dalian, China
| | - Peipei Li
- Liaoning Ocean and Fisheries Science Research Institute, Liaoning Academy of Agricultural Sciences, Dalian, China
| | - Linmei Wang
- Liaoning Ocean and Fisheries Science Research Institute, Liaoning Academy of Agricultural Sciences, Dalian, China
| | - Bo Zhang
- Liaoning Ocean and Fisheries Science Research Institute, Liaoning Academy of Agricultural Sciences, Dalian, China
| | - Qi Fan
- Liaoning Ocean and Fisheries Science Research Institute, Liaoning Academy of Agricultural Sciences, Dalian, China
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Preventive, Diagnostic and Therapeutic Applications of Baculovirus Expression Vector System. TRENDS IN INSECT MOLECULAR BIOLOGY AND BIOTECHNOLOGY 2018. [PMCID: PMC7115001 DOI: 10.1007/978-3-319-61343-7_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Different strategies are being worked out for engineering the original baculovirus expression vector (BEV) system to produce cost-effective clinical biologics at commercial scale. To date, thousands of highly variable molecules in the form of heterologous proteins, virus-like particles, surface display proteins/antigen carriers, heterologous viral vectors and gene delivery vehicles have been produced using this system. These products are being used in vaccine production, tissue engineering, stem cell transduction, viral vector production, gene therapy, cancer treatment and development of biosensors. Recombinant proteins that are expressed and post-translationally modified using this system are also suitable for functional, crystallographic studies, microarray and drug discovery-based applications. Till now, four BEV-based commercial products (Cervarix®, Provenge®, Glybera® and Flublok®) have been approved for humans, and myriad of others are in different stages of preclinical or clinical trials. Five products (Porcilis® Pesti, BAYOVAC CSF E2®, Circumvent® PCV, Ingelvac CircoFLEX® and Porcilis® PCV) got approval for veterinary use, and many more are in the pipeline. In the present chapter, we have emphasized on both approved and other baculovirus-based products produced in insect cells or larvae that are important from clinical perspective and are being developed as preventive, diagnostic or therapeutic agents. Further, the potential of recombinant adeno-associated virus (rAAV) as gene delivery vector has been described. This system, due to its relatively extended gene expression, lack of pathogenicity and the ability to transduce a wide variety of cells, gained extensive popularity just after the approval of first AAV-based gene therapy drug alipogene tiparvovec (Glybera®). Numerous products based on AAV which are presently in different clinical trials have also been highlighted.
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Park S, Arrell DK, Reyes S, Park EY, Terzic A. Conventional and unconventional secretory proteins expressed with silkworm bombyxin signal peptide display functional fidelity. Sci Rep 2017; 7:14499. [PMID: 29101331 PMCID: PMC5670176 DOI: 10.1038/s41598-017-14833-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 10/18/2017] [Indexed: 11/10/2022] Open
Abstract
Growth factors are signaling molecules which orchestrate cell growth, proliferation and differentiation. The majority are secreted proteins, exported through the classical endoplasmic reticulum (ER)/Golgi-dependent pathway, but a few are released by unconventional ER/Golgi-independent means. Human fibroblast growth factor 2 (FGF2) and insulin-like growth factor 1 (IGF1), are canonical prototypes secreted by the unconventional and conventional pathway, respectively. We herein examined whether expression of these two growth factors in the Bombyx mori nucleopolyhedrovirus (BmNPV)-based silkworm expression system with its innate signal peptide, bombyxin, secures structural homogeneity at the signal peptide cleavage site regardless of the native secretory route. Proteomic analysis mapped structural microheterogeneity of signal peptide cleavage at the amino terminus of FGF2, whereas IGF1 displayed homogeneous amino-terminal cleavage with complete removal of the bombyxin signal peptide. A cell proliferation assay revealed potent functional activity of both FGF2 and IGF1, suggesting that FGF2 amino-terminal microheterogeneity does not alter mitogenic activity. These findings demonstrate that the occurrence of amino-terminal structural homogeneity may be associated with the original secretion mechanism of a particular growth factor. Furthermore, our results highlight the bombyxin signal peptide as a reliable secretion sequence applicable to mass production of functionally active secretory proteins in a silkworm-based expression platform.
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Affiliation(s)
- Sungjo Park
- Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Marriott Heart Disease Research Program, Departments of Cardiovascular Medicine, Molecular Pharmacology and Experimental Therapeutics, and Medical Genetics, Mayo Clinic, Rochester, Minnesota, USA
| | - D Kent Arrell
- Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Marriott Heart Disease Research Program, Departments of Cardiovascular Medicine, Molecular Pharmacology and Experimental Therapeutics, and Medical Genetics, Mayo Clinic, Rochester, Minnesota, USA
| | - Santiago Reyes
- Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Marriott Heart Disease Research Program, Departments of Cardiovascular Medicine, Molecular Pharmacology and Experimental Therapeutics, and Medical Genetics, Mayo Clinic, Rochester, Minnesota, USA.,Department of Surgery, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Enoch Y Park
- Laboratory of Biotechnology, Graduate School of Science and Technology, Shizuoka University, Shizuoka, Japan
| | - Andre Terzic
- Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota, USA. .,Marriott Heart Disease Research Program, Departments of Cardiovascular Medicine, Molecular Pharmacology and Experimental Therapeutics, and Medical Genetics, Mayo Clinic, Rochester, Minnesota, USA.
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Contreras-Gómez A, Beas-Catena A, Sánchez-Mirón A, García-Camacho F, Molina Grima E. The use of an artificial neural network to model the infection strategy for baculovirus production in suspended insect cell cultures. Cytotechnology 2017; 70:555-565. [PMID: 28779292 DOI: 10.1007/s10616-017-0128-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 07/24/2017] [Indexed: 11/27/2022] Open
Abstract
Since the infection strategy in the baculovirus-insect cell system mostly affects production of the vector itself or the target product, and given that individual infection parameters interact with each other, the optimal combination must be established for each such specific system. In this work an artificial neural network was used to model infection strategy, including the cell concentration at infection, the multiplicity of infection, the medium recycle, and agitation intensity, and to evaluate the relative importance of each factor in the baculovirus production obtained. The results demonstrate that this model can be used to select an optimal infection strategy. For the baculovirus-insect cell system used in this study, this includes low multiplicity of infection and agitation intensity, along with high cell concentration at infection and medium recycle. Our model is superior to regression methods and predicts baculovirus production more precisely, thus meaning that it could be useful for the development of feasible processes, thereby improving process performance and economy.
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Affiliation(s)
| | - Alba Beas-Catena
- Chemical Engineering Area, University of Almería, 04120, Almería, Spain
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Hosamani M, Basagoudanavar SH, Sreenivasa BP, Inumaru S, Ballal CR, Venkataramanan R. Eri silkworm (Samia ricini), a non-mulberry host system for AcMNPV mediated expression of recombinant proteins. J Biotechnol 2015; 216:76-81. [PMID: 26467714 DOI: 10.1016/j.jbiotec.2015.10.006] [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: 08/06/2015] [Revised: 09/25/2015] [Accepted: 10/06/2015] [Indexed: 10/22/2022]
Abstract
The baculovirus expression system (BVES) based on Autographa californica nucleopolyhedrovirus (AcMNPV) is widely used for the expression of eukaryotic proteins. Several insect cells/larvae that are permissive to AcMNPV have been routinely used as hosts to express heterologous proteins. Domesticated Eri silkworm (Samia ricini), reared in many parts of India, Japan and China, is a non-mulberry silkworm. The present study shows that the Eri silkworm larvae are susceptible to intra-haemocoelical inoculation of AcMNPV. The virus replicates in the larva, as indicated by an increased viral loads in the haemolymph upon injection of a recombinant AcMNPV carrying green fluorescent protein gene. The virus showed localized replication in different tissues including the fat body, haemocytes, tracheal matrix and in the Malphigian tubules. The larval system was successfully used to express heterologous protein, by infecting with a recombinant AcMNPV carrying the 3ABC coding sequence of foot-and-mouth disease virus (FMDV). The study shows that the Eri silkworm larva can be a potential alternative bioreactor, for scaling up of the recombinant proteins employing the baculovirus system.
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Affiliation(s)
- Madhusudan Hosamani
- ICAR - Indian Veterinary Research Institute, Hebbal, Bengaluru 560024, India.
| | | | - B P Sreenivasa
- ICAR - Indian Veterinary Research Institute, Hebbal, Bengaluru 560024, India
| | - Shigeki Inumaru
- National Institute of Animal Health, 3-1-5 Kan-non-dai, Tsukuba, Ibaraki 305-0856, Japan
| | - Chandish R Ballal
- ICAR-National Bureau of Agricultural Insect Resources, Hebbal, Bengaluru 560024, India
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Pérez-Hernández M, Gadea I, Escribano J, Tabarés E, Gómez-Sebastián S. Expression and characterization of the gD protein of HSV-2 fused to the tetramerization domain of the transcription factor p53. Protein Expr Purif 2015. [DOI: 10.1016/j.pep.2015.07.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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