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Yamaji H. Suitability and perspectives on using recombinant insect cells for the production of virus-like particles. Appl Microbiol Biotechnol 2014; 98:1963-70. [PMID: 24407451 DOI: 10.1007/s00253-013-5474-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 12/12/2013] [Accepted: 12/14/2013] [Indexed: 10/25/2022]
Abstract
Virus-like particles (VLPs) can be produced in recombinant protein production systems by expressing viral surface proteins that spontaneously assemble into particulate structures similar to authentic viral or subviral particles. VLPs serve as excellent platforms for the development of safe and effective vaccines and diagnostic antigens. Among various recombinant protein production systems, the baculovirus-insect cell system has been used extensively for the production of a wide variety of VLPs. This system is already employed for the manufacture of a licensed human papillomavirus-like particle vaccine. However, the baculovirus-insect cell system has several inherent limitations including contamination of VLPs with progeny baculovirus particles. Stably transformed insect cells have emerged as attractive alternatives to the baculovirus-insect cell system. Different types of VLPs, with or without an envelope and composed of either single or multiple structural proteins, have been produced in stably transformed insect cells. VLPs produced by stably transformed insect cells have successfully elicited immune responses in vivo. In some cases, the yield of VLPs attained with recombinant insect cells was comparable to, or higher than, that obtained by baculovirus-infected insect cells. Recombinant insect cells offer a promising approach to the development and production of VLPs.
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Affiliation(s)
- Hideki Yamaji
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan,
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2
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Li X, Xu X, Jin A, Jia Q, Zhou H, Kang S, Lou Y, Gao J, Lu J. Self-assembled HCV core virus-like particles targeted and inhibited tumor cell migration and invasion. NANOSCALE RESEARCH LETTERS 2013; 8:401. [PMID: 24074276 PMCID: PMC3856463 DOI: 10.1186/1556-276x-8-401] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Accepted: 09/22/2013] [Indexed: 05/25/2023]
Abstract
We used a baculovirus expression system to express fusion proteins of HCV core, RGD (Arg-Gly-Asp) peptide, and IFN-α2a fragments in Sf9 cells. Western blotting and electron microscopy demonstrate that HCV core, peptides RGD, and IFN-α2a fusion proteins assemble into 30 to 40 nm nano-particles (virus-like particles, VLPs). Xenograft assays show that VLPs greatly reduced tumor volume and weight with regard to a nontreated xenograft. Migration and invasion results show that VLPs can inhibit the migration and invasion of the breast cancer cells MDA-MB231. This study will provide theoretical and experimental basis for the establishment of safe and effective tumor-targeted drug delivery systems and clinical application of VLPs carrying cell interacting cargo.
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Affiliation(s)
- Xiang Li
- Zhejiang Provincial Key Laboratory of Medical Genetics, Wenzhou Medical University, Wenzhou, Zhejiang 325035, People’s Republic of China
- Zhejiang Provincial Key Lab for Technology and Application of Model Organisms, Wenzhou Medical University, Wenzhou, Zhejiang 325035, People’s Republic of China
| | - Xuehe Xu
- Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, People’s Republic of China
| | - Aihui Jin
- Clinical Laboratory of Ningbo Yinzhou Second Hospital, Ningbo, Zhejiang 315100, People’s Republic of China
| | - Qunying Jia
- Zhejiang Provincial Key Laboratory of Medical Genetics, Wenzhou Medical University, Wenzhou, Zhejiang 325035, People’s Republic of China
- Zhejiang Provincial Key Lab for Technology and Application of Model Organisms, Wenzhou Medical University, Wenzhou, Zhejiang 325035, People’s Republic of China
| | - Huaibin Zhou
- Zhejiang Provincial Key Laboratory of Medical Genetics, Wenzhou Medical University, Wenzhou, Zhejiang 325035, People’s Republic of China
- Zhejiang Provincial Key Lab for Technology and Application of Model Organisms, Wenzhou Medical University, Wenzhou, Zhejiang 325035, People’s Republic of China
| | - Shuai Kang
- Zhejiang Provincial Key Laboratory of Medical Genetics, Wenzhou Medical University, Wenzhou, Zhejiang 325035, People’s Republic of China
- Zhejiang Provincial Key Lab for Technology and Application of Model Organisms, Wenzhou Medical University, Wenzhou, Zhejiang 325035, People’s Republic of China
| | - Yongliang Lou
- Zhejiang Provincial Key Laboratory of Medical Genetics, Wenzhou Medical University, Wenzhou, Zhejiang 325035, People’s Republic of China
- Zhejiang Provincial Key Lab for Technology and Application of Model Organisms, Wenzhou Medical University, Wenzhou, Zhejiang 325035, People’s Republic of China
| | - Jimin Gao
- Zhejiang Provincial Key Laboratory of Medical Genetics, Wenzhou Medical University, Wenzhou, Zhejiang 325035, People’s Republic of China
- Zhejiang Provincial Key Lab for Technology and Application of Model Organisms, Wenzhou Medical University, Wenzhou, Zhejiang 325035, People’s Republic of China
| | - Jianxin Lu
- Zhejiang Provincial Key Laboratory of Medical Genetics, Wenzhou Medical University, Wenzhou, Zhejiang 325035, People’s Republic of China
- Zhejiang Provincial Key Lab for Technology and Application of Model Organisms, Wenzhou Medical University, Wenzhou, Zhejiang 325035, People’s Republic of China
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Nishimura Y, Shishido T, Ishii J, Tanaka T, Ogino C, Kondo A. Protein-encapsulated bio-nanocapsules production with ER membrane localization sequences. J Biotechnol 2011; 157:124-9. [PMID: 21963589 DOI: 10.1016/j.jbiotec.2011.09.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 09/14/2011] [Accepted: 09/16/2011] [Indexed: 11/15/2022]
Abstract
Bio-nanocapsules (BNCs) are hollow nanoparticles composed of the L protein of hepatitis B virus (HBV) surface antigen (HBsAg), which can specifically introduce genes and drugs into various kinds of target cells. Although the classic electroporation method has typically been used to introduce highly charged molecules such as DNA, it is rarely adopted for proteins due to its very low efficiency. In this study, a novel approach to the preparation of BNC was established whereby a target protein was pre-encapsulated during the course of nanoparticle formation. Briefly, because of the process of BNC formation in a budding manner on the endoplasmic reticulum (ER) membrane, the association of target proteins to the ER membrane with lipidation sequences (ER membrane localization sequences) could directly generate protein-encapsulating BNC in collaboration with co-expression of the L proteins. Since the membrane-localized proteins are automatically enveloped into BNCs during the budding event, this method can be protect the proteins and BNCs from damage caused by electroporation and obviate the need for laborious consideration to study the optimal conditions for protein encapsulation. This approach would be a useful method for encapsulating therapeutic candidate proteins into BNCs.
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Affiliation(s)
- Yuya Nishimura
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe 657-8501, Japan
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A rapid method for titrating baculovirus stocks using the Sf-9 Easy Titer cell line. Biotechniques 2010; 47:785-8. [PMID: 19852765 DOI: 10.2144/000113238] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
A new rapid method for titrating baculovirus stocks has been developed using a novel cell line Sf-9 Easy Titer (Sf-9ET). The Sf-9ET cell line has been transfected with plasmid DNA containing the enhanced green fluorescent protein (eGFP) gene under the control of the baculovirus polyhedrin promoter. When used in the titration assay, the Sf-9ET cells turn green when they are infected with baculovirus due to the activation of the polyhedrin promoter/eGFP complex by baculovirus gene products expressed during the infection. Using a 96-well plate format end-point dilution assay, baculovirus titers can be determined in three days using a fluorescence microscope.
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Shishido T, Kurata N, Yoon ME, Tanaka T, Yamaji H, Fukuda H, Kondo A. A high-level expression vector containing selectable marker for continuous production of recombinant protein in insect cells. Biotechnol Lett 2009; 31:623-7. [PMID: 19152075 DOI: 10.1007/s10529-009-9910-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2008] [Revised: 12/15/2008] [Accepted: 12/19/2008] [Indexed: 10/21/2022]
Abstract
Insect cell expression systems are widely used to produce active recombinant proteins. Here, we have developed a high-level expression vector containing a selectable marker for continuous production of recombinant proteins in insect cells. The plasmid, pXIHAbla, developed in this study, established a polyclonal cell line 8 days shorter than pXINSECT-DEST38 and pBmAneo. In addition, pXIHAbla exhibited an approximately fivefold higher average enhanced GFP expression level and approximately a twofold higher bionanocapsule secretion level than pXINSECT-DEST38. Using this plasmid, insect cells that highly express active proteins have been easily established.
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Affiliation(s)
- Takuya Shishido
- Department of Molecular Science and Material Engineering, Graduate School of Science and Technology, Kobe University, 1-1 Rokkodai, Nada-Ku, Kobe, 657-8501, Japan
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Kurata N, Shishido T, Muraoka M, Tanaka T, Ogino C, Fukuda H, Kondo A. Specific Protein Delivery to Target Cells by Antibody-displaying Bionanocapsules. J Biochem 2008; 144:701-7. [DOI: 10.1093/jb/mvn131] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Shishido T, Muraoka M, Yamaji H, Kondo A, Fukuda H. Production of bionanocapsules in immobilized insect cell culture using porous biomass support particles. J Biosci Bioeng 2007; 103:572-4. [PMID: 17630131 DOI: 10.1263/jbb.103.572] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2007] [Accepted: 03/18/2007] [Indexed: 11/17/2022]
Abstract
L particles, composed of the L protein of the hepatitis B virus surface antigen, are candidates for a specific gene and drug delivery system. We previously constructed stably transfected insect cells for L particle production. In this study, the cells were successfully immobilized within porous biomass support particles (BSPs) in shake-flask culture. The immobilized cells showed a high specific productivity, comparable to the maximum productivities in static and shake-flask cultures of nonimmobilized cells.
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Affiliation(s)
- Takuya Shishido
- Department of Molecular Science and Material Engineering, Graduate School of Science and Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
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