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Amalfi S, Plastine MDP, López MG, Gravisaco MJ, Taboga O, Alfonso V. P26 enhances baculovirus gene delivery by modulating the mammalian antiviral response. Appl Microbiol Biotechnol 2023; 107:6277-6286. [PMID: 37578557 DOI: 10.1007/s00253-023-12703-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/14/2023] [Accepted: 07/22/2023] [Indexed: 08/15/2023]
Abstract
Poxins are poxviral proteins that act by degrading 2´3´-cGAMP, a key molecule of cGAS-STING axis that drives and amplifies the antiviral response. Previous works have described some poxin homologous among lepidopteran and baculoviral genes. In particular, P26, a poxin homologous from AcMNPV retains the 2´3´-cGAMP degradation activity in vitro. In this work, we demonstrated that the antiviral activity triggered by baculovirus was disrupted by the transient expression of P26 in murine and human cell lines, and the effect of this action is not only on IFN-β production but also on the induction of IFN-λ. Besides, we proved P26 functionality in a stable-transformed cell line where the protein was constitutively expressed, preventing the production of IFN-β induced by baculovirus and resulting in an improvement in the transduction efficiency by the attenuation of the antiviral activity. Finally, we incorporated P26 into budded virions by capsid display or passive incorporation, and the results showed that both strategies resulted in an improvement of 3-17 times in the efficiency of transgene expression in murine fibroblasts. Our results suggest that the incorporation of P26 to budded baculoviral vectors is a very promising tool to modulate negatively the innate antiviral cellular response and to improve the efficiency of gene delivery in mammalian cells. KEY POINTS: • P26 affects baculovirus-induced IFN-β and IFN-λ production in mammalian cells. • Murine fibroblasts expressing P26 are more susceptible to transduction by baculovirus. • Incorporation of P26 into the virion improves gene delivery efficiency of baculovirus.
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Affiliation(s)
- Sabrina Amalfi
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), De los Reseros y N. Repetto s/n, B1686IGC, Hurlingham, Buenos Aires, Argentina
- Instituto de Biotecnología, Universidad Nacional de Hurlingham, Av. Vergara 2222, Villa Tesei, B1688GEZ, Hurlingham, Buenos Aires, Argentina
| | - María Del Pilar Plastine
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), De los Reseros y N. Repetto s/n, B1686IGC, Hurlingham, Buenos Aires, Argentina
| | - María Gabriela López
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), De los Reseros y N. Repetto s/n, B1686IGC, Hurlingham, Buenos Aires, Argentina
| | - María José Gravisaco
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), De los Reseros y N. Repetto s/n, B1686IGC, Hurlingham, Buenos Aires, Argentina
| | - Oscar Taboga
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), De los Reseros y N. Repetto s/n, B1686IGC, Hurlingham, Buenos Aires, Argentina.
| | - Victoria Alfonso
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), De los Reseros y N. Repetto s/n, B1686IGC, Hurlingham, Buenos Aires, Argentina
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Panda SP, Singh V. The Dysregulated MAD in Mad: A Neuro-theranostic Approach Through the Induction of Autophagic Biomarkers LC3B-II and ATG. Mol Neurobiol 2023; 60:5214-5236. [PMID: 37273153 DOI: 10.1007/s12035-023-03402-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 05/24/2023] [Indexed: 06/06/2023]
Abstract
The word mad has historically been associated with the psyche, emotions, and abnormal behavior. Dementia is a common symptom among psychiatric disorders or mad (schizophrenia, depression, bipolar disorder) patients. Autophagy/mitophagy is a protective mechanism used by cells to get rid of dysfunctional cellular organelles or mitochondria. Autophagosome/mitophagosome abundance in autophagy depends on microtubule-associated protein light chain 3B (LC3B-II) and autophagy-triggering gene (ATG) which functions as an autophagic biomarker for phagophore production and quick mRNA disintegration. Defects in either LC3B-II or the ATG lead to dysregulated mitophagy-and-autophagy-linked dementia (MAD). The impaired MAD is closely associated with schizophrenia, depression, and bipolar disorder. The pathomechanism of psychosis is not entirely known, which is the severe limitation of today's antipsychotic drugs. However, the reviewed circuit identifies new insights that may be especially helpful in targeting biomarkers of dementia. Neuro-theranostics can also be achieved by manufacturing either bioengineered bacterial and mammalian cells or nanocarriers (liposomes, polymers, and nanogels) loaded with both imaging and therapeutic materials. The nanocarriers must cross the BBB and should release both diagnostic agents and therapeutic agents in a controlled manner to prove their effectiveness against psychiatric disorders. In this review, we highlighted the potential of microRNAs (miRs) as neuro-theranostics in the treatment of dementia by targeting autophagic biomarkers LC3B-II and ATG. Focus was also placed on the potential for neuro-theranostic nanocells/nanocarriers to traverse the BBB and induce action against psychiatric disorders. The neuro-theranostic approach can provide targeted treatment for mental disorders by creating theranostic nanocarriers.
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Affiliation(s)
- Siva Prasad Panda
- Institute of Pharmaceutical Research, GLA University, Uttar Pradesh, Mathura, India.
| | - Vikrant Singh
- Research Scholar, Institute of Pharmaceutical Research, GLA University, Uttar Pradesh, Mathura, India
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Impact of baculoviral transduction of fluorescent actin on cellular forces. Eur J Cell Biol 2023; 102:151294. [PMID: 36791652 DOI: 10.1016/j.ejcb.2023.151294] [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: 02/28/2022] [Revised: 01/28/2023] [Accepted: 02/01/2023] [Indexed: 02/12/2023] Open
Abstract
Live staining of actin brings valuable information in the field of mechanobiology. Gene transfer of GFP-actin has been reported to disturb cell rheological properties while gene transfer of fluorescent actin binding proteins was not. However the influence of gene transfer on cellular forces in adhered cells has never been investigated. This would provide a more complete picture of mechanical disorders induced by actin live staining for mechanobiology studies. Indeed, most of these techniques were shown to alter cell morphology. Change in cell morphology may in itself be sufficient to perturb cellular forces. Here we focus on quantifying the alterations of cellular stresses that result from baculoviral transduction of GFP-actin in MDCK cell line. We report that GFP-actin transduction increases the proportion of cells with large intracellular or surface stresses, especially in epithelia with low cell density. We show that the enhancement of the mechanical stresses is accompanied by small perturbations of cell shape, but not by a significant change in cell size. We thus conclude that this live staining method enhances the cellular forces but only brings subtle shape alterations.
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Wahba MA, Mofed D, Ghareeb DA, Omran JI, Salem TZ. Baculovirus displaying SARS-CoV-2 spike RBD promotes neutralizing antibody production in a mouse model. J Genet Eng Biotechnol 2023; 21:16. [PMID: 36759349 PMCID: PMC9910779 DOI: 10.1186/s43141-023-00472-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 01/26/2023] [Indexed: 02/11/2023]
Abstract
BACKGROUND There is always a need for a safe and efficient vaccine platform, especially when facing a pandemic such as COVID-19. Most of the SARS-CoV-2-based vaccines are based on the full spike protein, which is presented as a trimerized protein, and many viral vector vaccines express the spike protein into the host cells and do not display it on virus surfaces. However, the spike receptor-binding domain (RBD)-based vaccines are efficient and are currently under investigation and clinical trials. METHODOLOGY In this study, we are testing the efficacy of the RBD displayed on a baculovirus as a mean to formulate a safe and stable carrier to induce the immune system against SARS-CoV-2. Therefore, two pseudotyped baculoviruses were constructed to display the RBD, AcRBD-sfGFP-64, and AcRBD-sfGFP-V, using two different displaying strategies based on gp64 and VSV-G envelope glycoproteins, from Autographa californica multiple nucleopolyhedrovirus (AcMNPV) and vesicular stomatitis virus (VSV), respectively. BALB/C mice were immunized with the pseudotyped baculoviruses in a dose-optimized manner. Dot blot and Western blot were used to screen and validate the polyclonal antibodies' specificity to the SARS-CoV-2 RBD. A plaque reduction neutralization test (PRNT) was used to measure the sera neutralization capacity against a SARS-CoV-2 wild-type isolate from Egypt. ELISA was used to quantify certain cytokines for the assessment of the immune response. RESULT The outcome of our investigation showed that the monomeric RBD proteins were properly displayed on baculovirus and efficiently triggered the mouse immune system. The produced sera efficiently neutralized about 50% of SARS-CoV-2 in more than 100-fold serum dilution. The immunized mice showed a significant increase (p<0.01) in the levels of IL-2 and IFN-γ and a significant decrease (p<0.01) and (p<0.001) in the levels of IL-4 and IL-10, respectively, which suggest that AcRBD-sfGFP-64 and AcRBD-sfGFP-V induce Th1 cellular immune response. CONCLUSION The produced recombinant viruses can induce the immune response without adjuvant, which needs dose optimization and further stability tests. Neutralizing antibodies were induced without affecting the health of immunized mice. Th1 response can be attainable through the system, which is of great benefit in SARS CoV-2 infection and the system can be tested for future applications including vaccine development and polyclonal antibody production.
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Affiliation(s)
- Mohamed A. Wahba
- grid.440881.10000 0004 0576 5483Molecular Biology and Virology lab, Biomedical Sciences program, UST, Zewail City of Science and Technology, October Gardens, 6th of October City, Giza 12578 Egypt
| | - Dina Mofed
- grid.440881.10000 0004 0576 5483Molecular Biology and Virology lab, Biomedical Sciences program, UST, Zewail City of Science and Technology, October Gardens, 6th of October City, Giza 12578 Egypt
| | - Doaa A. Ghareeb
- grid.7155.60000 0001 2260 6941Bio-screening and preclinical trial lab, Biochemistry Department, Faculty of Science, Alexandria University, P.O. Box 21511, Alexandria, Egypt
| | - Jihad I. Omran
- grid.440881.10000 0004 0576 5483Molecular Biology and Virology lab, Biomedical Sciences program, UST, Zewail City of Science and Technology, October Gardens, 6th of October City, Giza 12578 Egypt
| | - Tamer Z. Salem
- grid.440881.10000 0004 0576 5483Molecular Biology and Virology lab, Biomedical Sciences program, UST, Zewail City of Science and Technology, October Gardens, 6th of October City, Giza 12578 Egypt ,grid.482515.f0000 0004 7553 2175Department of Microbial Genetics, Agricultural Genetic Engineering Research Institute (AGERl), ARC, Giza, 12619 Egypt ,National Biotechnology Network of Expertise (NBNE), Academy of Science Research and Technology (ASRT), Cairo, 11334 Egypt
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Pidre ML, Arrías PN, Amorós Morales LC, Romanowski V. The Magic Staff: A Comprehensive Overview of Baculovirus-Based Technologies Applied to Human and Animal Health. Viruses 2022; 15:80. [PMID: 36680120 PMCID: PMC9863858 DOI: 10.3390/v15010080] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/19/2022] [Accepted: 12/23/2022] [Indexed: 12/29/2022] Open
Abstract
Baculoviruses are enveloped, insect-specific viruses with large double-stranded DNA genomes. Among all the baculovirus species, Autographa californica multiple nucleopolyhedrovirus (AcMNPV) is the most studied. Due to its characteristics regarding biosafety, narrow host range and the availability of different platforms for modifying its genome, AcMNPV has become a powerful biotechnological tool. In this review, we will address the most widespread technological applications of baculoviruses. We will begin by summarizing their natural cycle both in larvae and in cell culture and how it can be exploited. Secondly, we will explore the different baculovirus-based protein expression systems (BEVS) and their multiple applications in the pharmaceutical and biotechnological industry. We will focus particularly on the production of vaccines, many of which are either currently commercialized or in advanced stages of development (e.g., Novavax, COVID-19 vaccine). In addition, recombinant baculoviruses can be used as efficient gene transduction and protein expression vectors in vertebrate cells (e.g., BacMam). Finally, we will extensively describe various gene therapy strategies based on baculoviruses applied to the treatment of different diseases. The main objective of this work is to provide an extensive up-to-date summary of the different biotechnological applications of baculoviruses, emphasizing the genetic modification strategies used in each field.
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Affiliation(s)
| | | | | | - Víctor Romanowski
- Instituto de Biotecnología y Biología Molecular (IBBM), Universidad Nacional de La Plata (UNLP) and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), La Plata 1900, Argentina
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6
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Edwardson TGW, Levasseur MD, Tetter S, Steinauer A, Hori M, Hilvert D. Protein Cages: From Fundamentals to Advanced Applications. Chem Rev 2022; 122:9145-9197. [PMID: 35394752 DOI: 10.1021/acs.chemrev.1c00877] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Proteins that self-assemble into polyhedral shell-like structures are useful molecular containers both in nature and in the laboratory. Here we review efforts to repurpose diverse protein cages, including viral capsids, ferritins, bacterial microcompartments, and designed capsules, as vaccines, drug delivery vehicles, targeted imaging agents, nanoreactors, templates for controlled materials synthesis, building blocks for higher-order architectures, and more. A deep understanding of the principles underlying the construction, function, and evolution of natural systems has been key to tailoring selective cargo encapsulation and interactions with both biological systems and synthetic materials through protein engineering and directed evolution. The ability to adapt and design increasingly sophisticated capsid structures and functions stands to benefit the fields of catalysis, materials science, and medicine.
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Affiliation(s)
| | | | - Stephan Tetter
- Laboratory of Organic Chemistry, ETH Zurich, 8093 Zurich, Switzerland
| | - Angela Steinauer
- Laboratory of Organic Chemistry, ETH Zurich, 8093 Zurich, Switzerland
| | - Mao Hori
- Laboratory of Organic Chemistry, ETH Zurich, 8093 Zurich, Switzerland
| | - Donald Hilvert
- Laboratory of Organic Chemistry, ETH Zurich, 8093 Zurich, Switzerland
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Chan LY, Chang CC, Lai PL, Maeda T, Hsu HC, Lin CY, Kuo SJ. Cre/LoxP Genetic Recombination Sustains Cartilage Anabolic Factor Expression in Hyaluronan Encapsulated MSCs Alleviates Intervertebral Disc Degeneration. Biomedicines 2022; 10:biomedicines10030555. [PMID: 35327357 PMCID: PMC8945655 DOI: 10.3390/biomedicines10030555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/14/2022] [Accepted: 02/24/2022] [Indexed: 02/04/2023] Open
Abstract
(1) Background: Inexplicable low back and neck pain frequently results from spinal disc degeneration with an imbalanced intervertebral disc (IVD) cell homeostasis. We hypothesize that introducing MSC expressing a sustained cartilage-anabolic factor in the IVD may stimulate the mucoid materials secreted from the IVD cells, promote the MSC’s chondrogenesis and maintain the hydration content providing mechanical strength to decelerate the disc degeneration progression; (2) Methods: This study expressed a cartilage-anabolic factor runx1 by a baculoviral vector (BV) transduced MSCs through a Cre/LoxP gene editing and recombination system for sustained recombinant runx1 transcription factor production. The Cre/LoxP BV modified MSCs were encapsulated by hyaluronan hydrogel, due to its’ vital composition in ECM of a healthy disc and transplanted to a punctured coccygeal disc in rats through micro-injection, followed by X-ray radiography and histological analysis at the 4- and 12-weeks post-transplantation; (3) Results: Data reveals the Cre/LoxP BV system-mediated long-termed runx1 gene expression, possessing good biosafety characteristics in the in vitro cell transduction and in vivo MSCs transplantation, and maintained superior hydration content in the disc than that of mock transduced MSCs; (4) Conclusions: This proof-of-concept study fulfills the need of implanting therapeutic cells accompanied with microinjection in the disc, such as a discography and paves a road to manufacture composite hyaluronan, such as peptide modified hyaluronan as an MSC carrier for IVD regeneration in the future study.
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Affiliation(s)
- Long-Yi Chan
- Institute of New Drug Development, College of Medicine, China Medical University, Taichung 40402, Taiwan; (L.-Y.C.); (C.-C.C.)
| | - Cheng-Chung Chang
- Institute of New Drug Development, College of Medicine, China Medical University, Taichung 40402, Taiwan; (L.-Y.C.); (C.-C.C.)
| | - Po-Liang Lai
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Tau-Yuan 333, Taiwan;
| | - Tomoji Maeda
- Tsuzuki Institute for Traditional Medicine, College of Pharmacy, China Medical University, Taichung 40402, Taiwan;
- Department of Pharmaceutical Sciences, Nihon Pharmaceutical University, Kitaadachi-gun, Saitama 362-0806, Japan
| | - Horng-Chaung Hsu
- School of Medicine, China Medical University, Taichung 40402, Taiwan;
- Department of Orthopedic Surgery, China Medical University Hospital, Taichung 40447, Taiwan
| | - Chin-Yu Lin
- Institute of New Drug Development, College of Medicine, China Medical University, Taichung 40402, Taiwan; (L.-Y.C.); (C.-C.C.)
- Tsuzuki Institute for Traditional Medicine, College of Pharmacy, China Medical University, Taichung 40402, Taiwan;
- Master Program for Biomedical Engineering, Collage of Biomedical Engineering, China Medical University, Taichung 40402, Taiwan
- Correspondence: (C.-Y.L.); (S.-J.K.); Tel.: +886-4-2205-3366 (ext. 8108) (C.-Y.L.); +886-4-2205-2121 (ext. 5052) (S.-J.K.)
| | - Shu-Jui Kuo
- School of Medicine, China Medical University, Taichung 40402, Taiwan;
- Department of Orthopedic Surgery, China Medical University Hospital, Taichung 40447, Taiwan
- Correspondence: (C.-Y.L.); (S.-J.K.); Tel.: +886-4-2205-3366 (ext. 8108) (C.-Y.L.); +886-4-2205-2121 (ext. 5052) (S.-J.K.)
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Baculovirus Vectors Induce the Production of Interferons in Swine: Their Potential in the Development of Antiviral Strategies. Vet Sci 2021; 8:vetsci8110278. [PMID: 34822651 PMCID: PMC8617851 DOI: 10.3390/vetsci8110278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 11/16/2022] Open
Abstract
The huge variety of viruses affecting swine represents a global threat. Since vaccines against highly contagious viruses last several days to induce protective immune responses, antiviral strategies for rapid control of outbreak situations are needed. The baculovirus Autographa californica multiple nucleopolyhedrovirus (AcMNPV), an insect virus, has been demonstrated to be an effective vaccine vector for mammals. Besides the ability to display or transduce heterologous antigens, it also induces strong innate immune responses and provides IFN-mediated protection against lethal challenges with viruses like foot-and-mouth disease virus (FMDV) in mice. Thus, the aim of this study was to evaluate the ability of AcMNPV to induce IFN production and elicit antiviral activity in porcine peripheral blood mononuclear cells (PBMCs). Our results demonstrated that AcMNPV induced an IFN-α-mediated antiviral activity in PBMCs in vitro. Moreover, the inoculation of AcMNPV in piglets led to the production of type I and II IFNs in sera from inoculated animals and antiviral activities against vesicular stomatitis virus (VSV) and FMDV measured by in vitro assays. Finally, it was demonstrated that the pseudotyping of AcMNPV with VSV-G protein, but not the enrichment of the AcMNPV genome with specific immunostimulatory CpG motifs for the porcine TLR9, improved the ability to induce IFN-α production in PBMCs in vitro. Together, these results suggest that AcMNPV is a promising tool for the induction of IFNs in antiviral strategies, with the potential to be biotechnologically improved.
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Jiang Z, Li N, Zhu D, Ren L, Shao Q, Yu K, Yang G. Genetically modified cell sheets in regenerative medicine and tissue engineering. Biomaterials 2021; 275:120908. [PMID: 34119885 DOI: 10.1016/j.biomaterials.2021.120908] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 05/16/2021] [Accepted: 05/20/2021] [Indexed: 02/06/2023]
Abstract
Genetically modified cell sheet technology is emerging as a promising biomedical tool to deliver therapeutic genes for regenerative medicine and tissue engineering. Virus-based gene transfection and non-viral gene transfection have been used to fabricate genetically modified cell sheets. Preclinical and clinical studies have shown various beneficial effects of genetically modified cell sheets in the regeneration of bone, periodontal tissue, cartilage and nerves, as well as the amelioration of dental implant osseointegration, myocardial infarction, skeletal muscle ischemia and kidney injury. Furthermore, this technology provides a potential treatment option for various hereditary diseases. However, the method has several limitations, such as safety concerns and difficulties in controlling transgene expression. Therefore, recent studies explored efficient and safe gene transfection methods, prolonged and controllable transgene expression and their potential application in personalized and precision medicine. This review summarizes various types of genetically modified cell sheets, preparation procedures, therapeutic applications and possible improvements.
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Affiliation(s)
- Zhiwei Jiang
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, 310006, China
| | - Na Li
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, 310006, China
| | - Danji Zhu
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, 310006, China
| | - Lingfei Ren
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, 310006, China
| | - Qin Shao
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, 310006, China
| | - Ke Yu
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, 310006, China
| | - Guoli Yang
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, 310006, China.
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10
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Monteserín M, Larumbe S, Martínez AV, Burgui S, Francisco Martín L. Recent Advances in the Development of Magnetic Nanoparticles for Biomedical Applications. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2021; 21:2705-2741. [PMID: 33653440 DOI: 10.1166/jnn.2021.19062] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The unique properties of magnetic nanoparticles have led them to be considered materials with significant potential in the biomedical field. Nanometric size, high surface-area ratio, ability to function at molecular level, exceptional magnetic and physicochemical properties, and more importantly, the relatively easy tailoring of all these properties to the specific requirements of the different biomedical applications, are some of the key factors of their success. In this paper, we will provide an overview of the state of the art of different aspects of magnetic nanoparticles, specially focusing on their use in biomedicine. We will explore their magnetic properties, synthetic methods and surface modifications, as well as their most significative physicochemical properties and their impact on the in vivo behaviour of these particles. Furthermore, we will provide a background on different applications of magnetic nanoparticles in biomedicine, such as magnetic drug targeting, magnetic hyperthermia, imaging contrast agents or theranostics. Besides, current limitations and challenges of these materials, as well as their future prospects in the biomedical field will be discussed.
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Affiliation(s)
- Maria Monteserín
- Centre of Advanced Surface Engineering and Advanced Materials, Asociación de la Industria Navarra, Ctra. Pamplona, s/n, Edificio AIN, C.P. 31191, Cordovilla, Navarra (Spain)
| | - Silvia Larumbe
- Centre of Advanced Surface Engineering and Advanced Materials, Asociación de la Industria Navarra, Ctra. Pamplona, s/n, Edificio AIN, C.P. 31191, Cordovilla, Navarra (Spain)
| | - Alejandro V Martínez
- Centre of Advanced Surface Engineering and Advanced Materials, Asociación de la Industria Navarra, Ctra. Pamplona, s/n, Edificio AIN, C.P. 31191, Cordovilla, Navarra (Spain)
| | - Saioa Burgui
- Centre of Advanced Surface Engineering and Advanced Materials, Asociación de la Industria Navarra, Ctra. Pamplona, s/n, Edificio AIN, C.P. 31191, Cordovilla, Navarra (Spain)
| | - L Francisco Martín
- Centre of Advanced Surface Engineering and Advanced Materials, Asociación de la Industria Navarra, Ctra. Pamplona, s/n, Edificio AIN, C.P. 31191, Cordovilla, Navarra (Spain)
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11
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Bao G. Magnetic Forces Enable Control of Biological Processes In Vivo. JOURNAL OF APPLIED MECHANICS 2021; 88:030801. [PMID: 34168385 PMCID: PMC8208485 DOI: 10.1115/1.4049331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/20/2020] [Accepted: 11/21/2020] [Indexed: 05/23/2023]
Abstract
Similar to mechanical forces that can induce profound biological effects, magnetic fields can have a broad range of implications to biological systems, from magnetoreception that allows an organism to detect a magnetic field to perceive direction, altitude, or location, to the use of heating induced by magnetic field for altering neuron activity. This review focuses on the application of magnetic forces generated by magnetic iron oxide nanoparticles (MIONs), which can also provide imaging contrast and mechanical/thermal energy in response to an external magnetic field, a special feature that distinguishes MIONs from other nanomaterials. The magnetic properties of MIONs offer unique opportunities for enabling control of biological processes under different magnetic fields. Here, we describe the approaches of utilizing the forces generated by MIONs under an applied magnetic field to control biological processes and functions, including the targeting of drug molecules to a specific tissue, increasing the vessel permeability for improving drug delivery, and activating a particular viral vector for spatial control of genome editing in vivo. The opportunities of using nanomagnets for a broad range of biomedical applications are briefly discussed.
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Affiliation(s)
- Gang Bao
- Department of Bioengineering, Rice University, Houston, TX 77030
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Mu C, Zhong Q, Meng Y, Zhou Y, Jiang N, Liu W, Li Y, Xue M, Zeng L, Vakharia VN, Fan Y. Oral Vaccination of Grass Carp ( Ctenopharyngodon idella) with Baculovirus-Expressed Grass Carp Reovirus (GCRV) Proteins Induces Protective Immunity against GCRV Infection. Vaccines (Basel) 2021; 9:41. [PMID: 33445494 PMCID: PMC7827918 DOI: 10.3390/vaccines9010041] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/07/2021] [Accepted: 01/10/2021] [Indexed: 11/17/2022] Open
Abstract
The grass carp reovirus (GCRV) causes severe hemorrhagic disease with high mortality and leads to serious economic losses in the grass carp (Ctenopharyngodon idella) industry in China. Oral vaccine has been proven to be an effective method to provide protection against fish viruses. In this study, a recombinant baculovirus BmNPV-VP35-VP4 was generated to express VP35 and VP4 proteins from GCRV type Ⅱ via Bac-to-Bac baculovirus expression system. The expression of recombinant VP35-VP4 protein (rVP35-VP4) in Bombyx mori embryo cells (BmE) and silkworm pupae was confirmed by Western blotting and immunofluorescence assay (IFA) after infection with BmNPV-VP35-VP4. To vaccinate the grass carp by oral route, the silkworm pupae expressing the rVP35-VP4 proteins were converted into a powder after freeze-drying, added to artificial feed at 5% and fed to grass carp (18 ± 1.5 g) for six weeks, and the immune response and protective efficacy in grass carp after oral vaccination trial was thoroughly investigated. This included blood cell counting and classification, serum antibody titer detection, immune-related gene expression and the relative percent survival rate in immunized grass carp. The results of blood cell counts show that the number of white blood cells in the peripheral blood of immunized grass carp increased significantly from 14 to 28 days post-immunization (dpi). The differential leukocyte count of neutrophils and monocytes were significantly higher than those in the control group at 14 dpi. Additionally, the number of lymphocytes increased significantly and reached a peak at 28 dpi. The serum antibody levels were significantly increased at Day 14 and continued until 42 days post-vaccination. The mRNA expression levels of immune-related genes (IFN-1, TLR22, IL-1β, MHC I, Mx and IgM) were significantly upregulated in liver, spleen, kidney and hindgut after immunization. Four weeks post-immunization, fish were challenged with virulent GCRV by intraperitoneal injection. The results of this challenge study show that orally immunized group exhibited a survival rate of 60% and relative percent survival (RPS) of 56%, whereas the control group had a survival rate of 13% and RPS of 4%. Taken together, our results demonstrate that the silkworm pupae powder containing baculovirus-expressed VP35-VP4 proteins could induce both non-specific and specific immune responses and protect grass carp against GCRV infection, suggesting it could be used as an oral vaccine.
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Affiliation(s)
- Changyong Mu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.M.); (Y.Z.); (N.J.); (W.L.); (Y.L.); (M.X.); (L.Z.)
- College of Biological Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China;
| | - Qiwang Zhong
- College of Biological Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China;
| | - Yan Meng
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.M.); (Y.Z.); (N.J.); (W.L.); (Y.L.); (M.X.); (L.Z.)
| | - Yong Zhou
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.M.); (Y.Z.); (N.J.); (W.L.); (Y.L.); (M.X.); (L.Z.)
| | - Nan Jiang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.M.); (Y.Z.); (N.J.); (W.L.); (Y.L.); (M.X.); (L.Z.)
| | - Wenzhi Liu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.M.); (Y.Z.); (N.J.); (W.L.); (Y.L.); (M.X.); (L.Z.)
| | - Yiqun Li
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.M.); (Y.Z.); (N.J.); (W.L.); (Y.L.); (M.X.); (L.Z.)
| | - Mingyang Xue
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.M.); (Y.Z.); (N.J.); (W.L.); (Y.L.); (M.X.); (L.Z.)
| | - Lingbing Zeng
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.M.); (Y.Z.); (N.J.); (W.L.); (Y.L.); (M.X.); (L.Z.)
| | - Vikram N. Vakharia
- Institute of Marine and Environmental Technology, University of Maryland Baltimore Country, Baltimore, MD 21202, USA
| | - Yuding Fan
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.M.); (Y.Z.); (N.J.); (W.L.); (Y.L.); (M.X.); (L.Z.)
- College of Biological Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China;
- Institute of Marine and Environmental Technology, University of Maryland Baltimore Country, Baltimore, MD 21202, USA
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, China
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Mu C, Vakharia VN, Zhou Y, Jiang N, Liu W, Meng Y, Li Y, Xue M, Zhang J, Zeng L, Zhong Q, Fan Y. A Novel Subunit Vaccine Based on Outer Capsid Proteins of Grass Carp Reovirus (GCRV) Provides Protective Immunity against GCRV Infection in Rare Minnow ( Gobiocypris rarus). Pathogens 2020; 9:pathogens9110945. [PMID: 33202780 PMCID: PMC7697209 DOI: 10.3390/pathogens9110945] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 11/11/2020] [Accepted: 11/11/2020] [Indexed: 12/29/2022] Open
Abstract
The grass carp hemorrhagic disease, caused by the grass carp reovirus (GCRV), has resulted in severe economic losses in the aquaculture industry in China. VP4 and VP35 are outer capsid proteins of GCRV and can induce an immune response in the host. Here, three recombinant baculoviruses, AcMNPV-VP35, AcMNPV-VP4, and AcMNPV-VP35-VP4, were generated to express recombinant VP4 and VP35 proteins from GCRV type II in insect cells by using the Bac-to-Bac baculovirus expression system to create a novel subunit vaccine. The expression of recombinant VP35, VP4, and VP35-VP4 proteins in Sf-9 cells were confirmed by Western blotting and immunofluorescence. Recombinant VP35, VP4, and VP35-VP4 were purified from baculovirus-infected cell lysates and injected intraperitoneally (3 μg/fish) into the model rare minnow, Gobiocypris rarus. After 21 days, the immunized fish were challenged with virulent GCRV. Liver, spleen, and kidney samples were collected at different time intervals to evaluate the protective efficacy of the subunit vaccines. The mRNA expression levels of some immune-related genes detected by using quantitative real-time PCR (qRT-PCR) were significantly upregulated in the liver, spleen, and kidney, with higher expression levels in the VP35-VP4 group. The nonvaccinated fish group showed 100% mortality, whereas the VP35-VP4, VP4, and VP35 groups exhibited 67%, 60%, and 33% survival, respectively. In conclusion, our results revealed that recombinant VP35 and VP4 can induce immunity and protect against GCRV infection, with their combined use providing the best effect. Therefore, VP35 and VP4 proteins can be used as a novel subunit vaccine against GCRV infection.
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Affiliation(s)
- Changyong Mu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.Z.); (N.J.); (W.L.); (Y.M.); (Y.L.); (M.X.); (J.Z.); (L.Z.)
- College of Biological Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Vikram N. Vakharia
- Institute of Marine and Environmental Technology, University of Maryland Baltimore Country, Baltimore, MD 21202, USA;
| | - Yong Zhou
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.Z.); (N.J.); (W.L.); (Y.M.); (Y.L.); (M.X.); (J.Z.); (L.Z.)
| | - Nan Jiang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.Z.); (N.J.); (W.L.); (Y.M.); (Y.L.); (M.X.); (J.Z.); (L.Z.)
| | - Wenzhi Liu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.Z.); (N.J.); (W.L.); (Y.M.); (Y.L.); (M.X.); (J.Z.); (L.Z.)
| | - Yan Meng
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.Z.); (N.J.); (W.L.); (Y.M.); (Y.L.); (M.X.); (J.Z.); (L.Z.)
| | - Yiqun Li
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.Z.); (N.J.); (W.L.); (Y.M.); (Y.L.); (M.X.); (J.Z.); (L.Z.)
| | - Mingyang Xue
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.Z.); (N.J.); (W.L.); (Y.M.); (Y.L.); (M.X.); (J.Z.); (L.Z.)
| | - Jieming Zhang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.Z.); (N.J.); (W.L.); (Y.M.); (Y.L.); (M.X.); (J.Z.); (L.Z.)
| | - Lingbing Zeng
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.Z.); (N.J.); (W.L.); (Y.M.); (Y.L.); (M.X.); (J.Z.); (L.Z.)
| | - Qiwang Zhong
- College of Biological Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
- Correspondence: (Q.Z.); (Y.F.)
| | - Yuding Fan
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (C.M.); (Y.Z.); (N.J.); (W.L.); (Y.M.); (Y.L.); (M.X.); (J.Z.); (L.Z.)
- College of Biological Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
- Institute of Marine and Environmental Technology, University of Maryland Baltimore Country, Baltimore, MD 21202, USA;
- Correspondence: (Q.Z.); (Y.F.)
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Amalfi S, Molina GN, Bevacqua RJ, López MG, Taboga O, Alfonso V. Baculovirus Transduction in Mammalian Cells Is Affected by the Production of Type I and III Interferons, Which Is Mediated Mainly by the cGAS-STING Pathway. J Virol 2020; 94:e01555-20. [PMID: 32796076 PMCID: PMC7565641 DOI: 10.1128/jvi.01555-20] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 08/05/2020] [Indexed: 12/13/2022] Open
Abstract
The baculovirus Autographa californica multiple nucleopolyhedrovirus is an insect virus with a circular double-stranded DNA genome, which, among other multiple biotechnological applications, is used as an expression vector for gene delivery in mammalian cells. Nevertheless, the nonspecific immune response triggered by viral vectors often suppresses transgene expression. To understand the mechanisms involved in that response, in the present study, we studied the cyclic GMP-AMP synthase-stimulator of interferon genes (cGAS-STING) pathway by using two approaches: the genetic edition through CRISPR/Cas9 technology of genes encoding STING or cGAS in NIH/3T3 murine fibroblasts and the infection of HEK293 and HEK293 T human epithelial cells, deficient in cGAS and in cGAS and STING expression, respectively. Overall, our results suggest the existence of two different pathways involved in the establishment of the antiviral response, both dependent on STING expression. Particularly, the cGAS-STING pathway resulted in the more relevant production of beta interferon (IFN-β) and IFN-λ1 in response to baculovirus infection. In human epithelial cells, IFN-λ1 production was also induced in a cGAS-independent and DNA-protein kinase (DNA-PK)-dependent manner. Finally, we demonstrated that these cellular responses toward baculovirus infection affect the efficiency of transduction of baculovirus vectors.IMPORTANCE Baculoviruses are nonpathogenic viruses that infect mammals, which, among other applications, are used as vehicles for gene delivery. Here, we demonstrated that the cytosolic DNA sensor cGAS recognizes baculoviral DNA and that the cGAS-STING axis is primarily responsible for the attenuation of transduction in human and mouse cell lines through type I and type III IFNs. Furthermore, we identified DNA-dependent protein kinase (DNA-PK) as a cGAS-independent and alternative DNA cytosolic sensor that contributes less to the antiviral state in baculovirus infection in human epithelial cells than cGAS. Knowledge of the pathways involved in the response of mammalian cells to baculovirus infection will improve the use of this vector as a tool for gene therapy.
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Affiliation(s)
- Sabrina Amalfi
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Hurlingham, Argentina
| | - Guido Nicolás Molina
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Hurlingham, Argentina
| | - Romina Jimena Bevacqua
- Laboratorio de Biotecnología Animal, Facultad de Agronomía, Universidad de Buenos Aires/INPA-CONICET, Buenos Aires, Argentina
- Seung Kim Lab, Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, USA
| | - María Gabriela López
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Hurlingham, Argentina
| | - Oscar Taboga
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Hurlingham, Argentina
| | - Victoria Alfonso
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Hurlingham, Argentina
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15
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Production of Baculovirus and Stem Cells for Baculovirus-Mediated Gene Transfer into Human Mesenchymal Stem Cells. Methods Mol Biol 2020; 2183:367-390. [PMID: 32959254 DOI: 10.1007/978-1-0716-0795-4_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The discovery of the genome-editing tool CRISPR-Cas9 is revolutionizing the world of gene therapy and will extend the gene therapy product pipeline. While applying gene therapy products, the main difficulty is an efficient and effective transfer of the nucleic acids carrying the relevant information to their target destination, the nucleus of the cells. Baculoviruses have shown to be very suitable transport vehicles for this task due to, inter alia, their ability to transduce mammalian/human cells without being pathogenic. This property allows the usage of baculovirus-transduced cells as cell therapy products, thus, combining the advantages of gene and cell therapy. To make such pharmaceuticals available for patients, a successful production and purification is necessary. In this chapter, we describe the generation of a pseudotyped baculovirus vector, followed by downstream processing using depth and tangential-flow filtration. This vector is used subsequently to transduce human mesenchymal stem cells. The production of the cells and the subsequent transduction process are illustrated.
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16
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Yu L, Pan J, Cao G, Jiang M, Zhang Y, Zhu M, Liang Z, Zhang X, Hu X, Xue R, Gong C. AIV polyantigen epitope expressed by recombinant baculovirus induces a systemic immune response in chicken and mouse models. Virol J 2020; 17:121. [PMID: 32758272 PMCID: PMC7403573 DOI: 10.1186/s12985-020-01388-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 07/15/2020] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The protective efficacy of avian influenza virus (AIV) vaccines is unsatisfactory due to the presence of various serotypes generated by genetic reassortment. Thus, immunization with a polyantigen chimeric epitope vaccine may be an effective strategy for protecting poultry from infection with different AIV subtypes. METHODS Baculovirus has recently emerged as a novel and attractive gene delivery vehicle for animal cells. In the present study, a recombinant baculovirus BmNPV-CMV/THB-P10/CTLT containing a fused codon-optimized sequence (CTLT) of T lymphocyte epitopes from H1HA, H9HA, and H7HA AIV subtypes, and another fused codon-optimized sequence (THB) of Th and B cell epitopes from H1HA, H9HA, and H7HA AIV subtypes, driven by a baculovirus P10 promoter and cytomegalovirus CMV promoter, respectively, was constructed. RESULTS Western blotting and cellular immunofluorescence demonstrated that the CTLT (THB) can be expressed in rBac-CMV/THB-P10/CTLT-infected silkworm cells (mammalian HEK293T cells). Furthermore, the recombinant virus, rBac-CMV-THB-CTLT, was used to immunize both chickens and mice. CONCLUSIONS The results of an indirect ELISA, immunohistochemistry, and T lymphocyte proliferation assay indicated that specific humoral and cellular responses were detected in both chicken and mice. These results suggest that rBac-CMV/THB-P10/CTLT can be developed as a potential vaccine against different AIV subtypes.
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Affiliation(s)
- Lei Yu
- School of Biology and Basic Medical Sciences, Soochow University, No.199 Ren'ai Road, Dushu Lake Higher Education Town, Suzhou Industrial Park, Suzhou, 215123, P.R. China
| | - Jun Pan
- School of Biology and Basic Medical Sciences, Soochow University, No.199 Ren'ai Road, Dushu Lake Higher Education Town, Suzhou Industrial Park, Suzhou, 215123, P.R. China
| | - Guangli Cao
- School of Biology and Basic Medical Sciences, Soochow University, No.199 Ren'ai Road, Dushu Lake Higher Education Town, Suzhou Industrial Park, Suzhou, 215123, P.R. China
- Agricultural Biotechnology Research Institute, Agricultural biotechnology and Ecological Research Institute, Soochow University, Suzhou, 215123, China
| | - Mengsheng Jiang
- School of Biology and Basic Medical Sciences, Soochow University, No.199 Ren'ai Road, Dushu Lake Higher Education Town, Suzhou Industrial Park, Suzhou, 215123, P.R. China
| | - Yunshan Zhang
- School of Biology and Basic Medical Sciences, Soochow University, No.199 Ren'ai Road, Dushu Lake Higher Education Town, Suzhou Industrial Park, Suzhou, 215123, P.R. China
| | - Min Zhu
- School of Biology and Basic Medical Sciences, Soochow University, No.199 Ren'ai Road, Dushu Lake Higher Education Town, Suzhou Industrial Park, Suzhou, 215123, P.R. China
| | - Zi Liang
- School of Biology and Basic Medical Sciences, Soochow University, No.199 Ren'ai Road, Dushu Lake Higher Education Town, Suzhou Industrial Park, Suzhou, 215123, P.R. China
| | - Xing Zhang
- School of Biology and Basic Medical Sciences, Soochow University, No.199 Ren'ai Road, Dushu Lake Higher Education Town, Suzhou Industrial Park, Suzhou, 215123, P.R. China
- Agricultural Biotechnology Research Institute, Agricultural biotechnology and Ecological Research Institute, Soochow University, Suzhou, 215123, China
| | - Xiaolong Hu
- School of Biology and Basic Medical Sciences, Soochow University, No.199 Ren'ai Road, Dushu Lake Higher Education Town, Suzhou Industrial Park, Suzhou, 215123, P.R. China
- Agricultural Biotechnology Research Institute, Agricultural biotechnology and Ecological Research Institute, Soochow University, Suzhou, 215123, China
| | - Renyu Xue
- School of Biology and Basic Medical Sciences, Soochow University, No.199 Ren'ai Road, Dushu Lake Higher Education Town, Suzhou Industrial Park, Suzhou, 215123, P.R. China
- Agricultural Biotechnology Research Institute, Agricultural biotechnology and Ecological Research Institute, Soochow University, Suzhou, 215123, China
| | - Chengliang Gong
- School of Biology and Basic Medical Sciences, Soochow University, No.199 Ren'ai Road, Dushu Lake Higher Education Town, Suzhou Industrial Park, Suzhou, 215123, P.R. China.
- Agricultural Biotechnology Research Institute, Agricultural biotechnology and Ecological Research Institute, Soochow University, Suzhou, 215123, China.
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17
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Giménez CS, Castillo MG, Simonin JA, Núñez Pedrozo CN, Pascuali N, Bauzá MDR, Locatelli P, López AE, Belaich MN, Mendiz AO, Crottogini AJ, Cuniberti LA, Olea FD. Effect of intramuscular baculovirus encoding mutant hypoxia-inducible factor 1-alpha on neovasculogenesis and ischemic muscle protection in rabbits with peripheral arterial disease. Cytotherapy 2020; 22:563-572. [PMID: 32723595 DOI: 10.1016/j.jcyt.2020.06.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 06/07/2020] [Accepted: 06/26/2020] [Indexed: 01/09/2023]
Abstract
BACKGROUND AIMS Peripheral arterial disease (PAD) is a progressive, disabling ailment for which no effective treatment exists. Gene therapy-mediated neovascularization has emerged as a potentially useful strategy. We tested the angiogenic and arteriogenic efficacy and safety of a baculovirus (BV) encoding mutant, oxygen-resistant hypoxia-inducible factor 1-alpha (mHIF-1α), in rabbits with PAD. METHODS After assessing the transfection efficiency of the BV.mHIF-1α vector and its tubulogenesis potential in vitro, we randomized rabbits with experimental PAD to receive 1 × 109 copies of BV.mHIF-1α or BV.null (n = 6 per group) 7 days after surgery. Two weeks post-treatment, collateralization (digital angiography) and capillary and arteriolar densities (immunohistochemistry) were measured in the posterior limbs. Ischemic damage was evaluated in adductor and gastrocnemius muscle samples. Tracking of viral DNA in injected zones and remote tissues at different time points was performed in additional rabbits using a BV encoding GFP. RESULTS Angiographically visible collaterals were more numerous in BV.mHIF-1α-treated rabbits (8.12 ± 0.42 vs 6.13 ± 1.15 collaterals/cm2, P < 0.05). The same occurred with arteriolar (27.9 ± 7.0 vs 15.3 ± 4.0 arterioles/mm2) and capillary (341.8 ± 109.9 vs 208.8 ± 87.7 capillaries/mm2, P < 0.05) densities. BV.mHIF-1α-treated rabbits displayed less ischemic muscle damage than BV.null-treated animals. Viral DNA and GFP mRNA were detectable only at 3 and 7 days after injection in hind limbs. Neither the virus nor GFP mRNA was detected in remote tissues. CONCLUSIONS In rabbits with PAD, BV.mHIF-1α induced neovascularization and reduced ischemic damage, exhibiting a good safety profile at 14 days post-treatment. Complementary studies to evaluate its potential usefulness in the clinic are needed.
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Affiliation(s)
- Carlos S Giménez
- Laboratorio de Medicina Regenerativa Cardiovascular, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMETTYB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Favaloro, Buenos Aires, Argentina
| | - Martha G Castillo
- Laboratorio de Medicina Regenerativa Cardiovascular, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMETTYB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Favaloro, Buenos Aires, Argentina
| | - Jorge A Simonin
- Laboratorio de Ingeniería Genética y Biología Celular y Molecular (LIGBCM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Quilmes, Bernal, Argentina
| | - Cristian N Núñez Pedrozo
- Laboratorio de Medicina Regenerativa Cardiovascular, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMETTYB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Favaloro, Buenos Aires, Argentina
| | - Natalia Pascuali
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - María Del Rosario Bauzá
- Laboratorio de Medicina Regenerativa Cardiovascular, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMETTYB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Favaloro, Buenos Aires, Argentina
| | - Paola Locatelli
- Laboratorio de Medicina Regenerativa Cardiovascular, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMETTYB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Favaloro, Buenos Aires, Argentina
| | - Ayelén E López
- Laboratorio de Medicina Regenerativa Cardiovascular, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMETTYB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Favaloro, Buenos Aires, Argentina
| | - Mariano N Belaich
- Laboratorio de Ingeniería Genética y Biología Celular y Molecular (LIGBCM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Quilmes, Bernal, Argentina
| | - Alfredo O Mendiz
- Hospital Universitario de la Fundación Favaloro, Buenos Aires, Argentina
| | - Alberto J Crottogini
- Laboratorio de Medicina Regenerativa Cardiovascular, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMETTYB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Favaloro, Buenos Aires, Argentina
| | - Luis A Cuniberti
- Laboratorio de Medicina Regenerativa Cardiovascular, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMETTYB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Favaloro, Buenos Aires, Argentina
| | - Fernanda D Olea
- Laboratorio de Medicina Regenerativa Cardiovascular, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMETTYB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Favaloro, Buenos Aires, Argentina.
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18
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Fragoso-Saavedra M, Vega-López MA. Induction of mucosal immunity against pathogens by using recombinant baculoviral vectors: Mechanisms, advantages, and limitations. J Leukoc Biol 2020; 108:835-850. [PMID: 32392638 DOI: 10.1002/jlb.4mr0320-488r] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/19/2020] [Accepted: 04/09/2020] [Indexed: 12/13/2022] Open
Abstract
Over 90% of pathogens of medical importance invade the organism through mucosal surfaces, which makes it urgent to develop safe and effective mucosal vaccines and mucosal immunization protocols. Besides, parenteral immunization does not provide adequate protective immunity in mucosal surfaces. Effective mucosal vaccination could protect local and systemic compartments and favor herd immunity. Although various mucosal adjuvants and Ag-delivery systems have been developed, none has filled the gap to control diseases caused by complex mucosal pathogens. Among the strategies to counteract them, recombinant virions from the baculovirus Autographa californica multiple nucleopolyhedrovirus (rAcMNPV) are useful vectors, given their safety and efficacy to produce mucosal and systemic immunity in animal infection models. Here, we review the immunogenic properties of rAcMNPV virions from the perspectives of mucosal immunology and vaccinology. Some features, which are analyzed and extrapolated from studies with different particulate antigens, include size, shape, surface molecule organization, and danger signals, all needed to break the tolerogenic responses of the mucosal immune tissues. Also, we present a condensed discussion on the immunity provided by rAcMNPV virions against influenza virus and human papillomavirus in animal models. Through the text, we highlight the advantages and limitations of this experimental immunization platform.
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Affiliation(s)
- Mario Fragoso-Saavedra
- Laboratorio de Inmunobiología de las Mucosas, Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Colonia Zacatenco, Ciudad de México, México
| | - Marco A Vega-López
- Laboratorio de Inmunobiología de las Mucosas, Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Colonia Zacatenco, Ciudad de México, México
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19
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Tung MC, Lu HY, Chang YK, Huang WR, Liao TL, Wu HY, Chang CD, Fan HC, Nielsen BL, Liu HJ. Baculovirus surface display of the HA protein of H5N2 avian influenza virus and its immunogenicity against a lethal challenge with H5N1 virus in chickens. Vet Microbiol 2020; 243:108640. [PMID: 32273019 DOI: 10.1016/j.vetmic.2020.108640] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/10/2020] [Accepted: 03/10/2020] [Indexed: 12/14/2022]
Abstract
In the present study, we have generated several H5N2 HA recombinant baculoviruses for production of a HA subunit vaccine against the lethal H5N2 avian influenza virus (AIV). The effective display of functional HA on the cell membrane and baculoviral envelope was examined. Our results reveal that chickens immunized with the chimeric AIV HA protein fused with the baculovirus gp64 cytoplasmic domain (CTD) induced higher HI titer. To further increase the expression level of the H5N2 AIV HA protein, the HA gene of H5N2 AIV was amplified and cloned into three novel baculovirus surface display vectors BacDual DisplayEGFP-2HA, BacDual DisplayEGFP-3HA, BacDual DisplayEGFP-4HA which contains multiple expression cassettes for higher level display of HA proteins on the cell membrane and baculovirus envelope. To determine the optimum conditions for producing HA protein, various MOI, infection times, and shaker times for virus transfection were tested. Our results reveal that the conditions of an MOI of 5, 3 day post infection, and 15 min of shaker time have higher efficiency for HA protein production. Our results reveal that the baculovirus surface display vector pBacDual DisplayEGFP-4HA increases significantly the expression level of the H5N2 AIV HA protein. Chickens that received two doses of BacDual DisplayEGFP-4HA cell lysates formulated with Montanide ISA70 adjuvant elicited efficient immunogenicity and had an average HI titer of 7 log2 at 2 weeks post-vaccination. Challenge studies revealed that vaccinated chickens with HI titers 5 log2 were completely protected against the lethal H5N1 AIV challenge. Furthermore, HI titers could be maintained at 5 log2 for 20 weeks for laying hens. This study suggests that the HA protein expression from the baculovirus surface display system could be a safe and efficacious subunit vaccine for chickens.
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Affiliation(s)
- Min-Che Tung
- Department of Stomatology & Medical Research, Tung's Taichung Metroharbor Hospital, Taichung, Taiwan
| | - Hsin-Yu Lu
- Institute of Molecular Biology, National Chung Hsing University, Taichung 402, Taiwan
| | - Yu-Kang Chang
- Department of Stomatology & Medical Research, Tung's Taichung Metroharbor Hospital, Taichung, Taiwan; Depertment of Nursing, Jen-Teh Junior College of Medicine and Management, Hou-Loung Town, Taiwan
| | - Wei-Ru Huang
- Institute of Molecular Biology, National Chung Hsing University, Taichung 402, Taiwan
| | - Tsai-Ling Liao
- Department of Medical Research, Taichung Veterans General Hospital, Taichung 407, Taiwan; Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung 402, Taiwan; Ph. D Program in Translational Medicine, National Chung Hsing University, Taichung 402, Taiwan
| | - Hung-Yi Wu
- Department of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
| | - Ching-Dong Chang
- Department of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
| | - Hueng-Chuen Fan
- Department of Stomatology & Medical Research, Tung's Taichung Metroharbor Hospital, Taichung, Taiwan
| | - Brent L Nielsen
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, UT, USA
| | - Hung-Jen Liu
- Institute of Molecular Biology, National Chung Hsing University, Taichung 402, Taiwan; Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung 402, Taiwan; Ph. D Program in Translational Medicine, National Chung Hsing University, Taichung 402, Taiwan; The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung 402, Taiwan; Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan.
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20
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Durous L, Rosa-Calatrava M, Petiot E. Advances in influenza virus-like particles bioprocesses. Expert Rev Vaccines 2019; 18:1285-1300. [DOI: 10.1080/14760584.2019.1704262] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Laurent Durous
- Virologie et Pathologie Humaine - VirPath team - Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
| | - Manuel Rosa-Calatrava
- Virologie et Pathologie Humaine - VirPath team - Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
- VirNext, Faculté de Médecine RTH Laennec, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
| | - Emma Petiot
- Virologie et Pathologie Humaine - VirPath team - Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
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21
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Wang Z, Li M, Ji Y, Yang M, Yang W, Wang J, Li W. Development of a novel bivalent baculovirus vectors for complement resistance and sustained transgene expression and its application in anti-angiogenesis gene therapy. Biomed Pharmacother 2019; 123:109765. [PMID: 31846843 DOI: 10.1016/j.biopha.2019.109765] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 12/05/2019] [Accepted: 12/05/2019] [Indexed: 11/28/2022] Open
Abstract
Baculovirus (BV) is a potential gene delivery vector but only mediates transient transgene expression and easily inactivated by human complement. To this end, we intend to develop a novel bivalent BV vector for complement resistance and sustained transgene expression, and evaluate its effect in anti-angiogenesis gene therapy. The results showed that the hybrid bivalent BV significantly prolonged the expression of enhanced green fluorescent protein (eGFP) in vitro for at least 90 days at over 109 a.u. total fluorescence intensity, and exhibited significantly higher complement resistance. The control BV-mediated eGFP expression gradually declined within 15 days and showed lower transduction efficiency. In vivo studies confirmed that the hybrid bivalent BV exhibited longer duration of eGFP expression and higher transduction efficacy than the control BVs. Based on these findings, we further constructed a hybrid BV expressing the antiangiogenic fusion protein containing human endostatin and angiostatin (hEA). The hybrid BV-expressed hEA significantly prolonged the expression level of hEA with enhanced anti-angiogenic activities compared to the control groups, as evidenced by ELISA, cell proliferation, migration and tubular formation assays. With the stable expression of hEA, the hybrid BV conferred hEA more significant inhibitory effect on hepatocellular carcinoma tumor growth and significantly extended the life span of mice. These data implicate that the SB-based BV surface display system may have broad prospects as a novel platform for gene therapy of tumors.
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Affiliation(s)
- Zhisheng Wang
- School of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China; Laboratory Animal Center, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China.
| | - Mengting Li
- School of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Yonggan Ji
- School of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Mengmeng Yang
- Laboratory Animal Center, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Wen Yang
- Laboratory Animal Center, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Jinbao Wang
- Laboratory Animal Center, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Wei Li
- Department of Urology, Shenzhen Longhua District Central Hospital, Shenzhen, 518110, PR China.
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22
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Li Z, Fan Y, Wei J, Mei X, He Q, Zhang Y, Li T, Long M, Chen J, Bao J, Pan G, Li C, Zhou Z. Baculovirus Utilizes Cholesterol Transporter NIEMANN-Pick C1 for Host Cell Entry. Front Microbiol 2019; 10:2825. [PMID: 31866985 PMCID: PMC6906155 DOI: 10.3389/fmicb.2019.02825] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 11/21/2019] [Indexed: 01/31/2023] Open
Abstract
The dual roles of baculovirus for the control of natural insect populations as an insecticide, and as a tool for foreign gene expression and delivery, have called for a comprehensive understanding of the molecular mechanisms governing viral infection. Here, we demonstrate that the Bombyx mori Niemann-Pick C1 (BmNPC1) is essential for baculovirus infection in insect cells. Both pretreatment of B. mori embryonic cells (BmE) with NPC1 antagonists (imipramine or U18666A) and down-regulation of NPC1 expression resulted in a significant reduction in baculovirus BmNPV (B. mori nuclear polyhedrosis virus) infectivity. Disruption of BmNPC1 could decrease viral entry (2 hpi) rather than reduce the viral binding to the BmE cells. Furthermore, our results showed that NPC1 domain C binds directly and specifically to the viral glycoprotein GP64, which is responsible for both receptor binding and fusion. Antibody blocking assay also revealed that the domain C specific polyclonal antibody inhibited BmNPV infection, indicating that NPC1 domain C most likely plays a role during viral fusion in endosomal compartments. Our results, combined with previous studies identifying an essential role of human NPC1 (hNPC1) in filovirus infection, suggest that the glycoprotein of several enveloped viruses possess a shared strategy of exploiting host NPC1 proteins during virus intracellular entry events.
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Affiliation(s)
- Zhihong Li
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Department of Microbiology, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Youpeng Fan
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Microsporidia Infection and Control, Southwest University, Chongqing, China
| | - Junhong Wei
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Microsporidia Infection and Control, Southwest University, Chongqing, China
- Key Laboratory for Sericulture Functional Genomics Biotechnology of Agricultural Ministry, Southwest University, Chongqing, China
| | - Xionge Mei
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Qiang He
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Microsporidia Infection and Control, Southwest University, Chongqing, China
| | - Yonghua Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Tian Li
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Microsporidia Infection and Control, Southwest University, Chongqing, China
- Key Laboratory for Sericulture Functional Genomics Biotechnology of Agricultural Ministry, Southwest University, Chongqing, China
| | - Mengxian Long
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Microsporidia Infection and Control, Southwest University, Chongqing, China
- Key Laboratory for Sericulture Functional Genomics Biotechnology of Agricultural Ministry, Southwest University, Chongqing, China
| | - Jie Chen
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Microsporidia Infection and Control, Southwest University, Chongqing, China
- Key Laboratory for Sericulture Functional Genomics Biotechnology of Agricultural Ministry, Southwest University, Chongqing, China
| | - Jialing Bao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Microsporidia Infection and Control, Southwest University, Chongqing, China
- Key Laboratory for Sericulture Functional Genomics Biotechnology of Agricultural Ministry, Southwest University, Chongqing, China
| | - Guoqing Pan
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Microsporidia Infection and Control, Southwest University, Chongqing, China
- Key Laboratory for Sericulture Functional Genomics Biotechnology of Agricultural Ministry, Southwest University, Chongqing, China
| | - Chunfeng Li
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Microsporidia Infection and Control, Southwest University, Chongqing, China
- Key Laboratory for Sericulture Functional Genomics Biotechnology of Agricultural Ministry, Southwest University, Chongqing, China
| | - Zeyang Zhou
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Microsporidia Infection and Control, Southwest University, Chongqing, China
- Key Laboratory for Sericulture Functional Genomics Biotechnology of Agricultural Ministry, Southwest University, Chongqing, China
- College of Life Sciences, Chongqing Normal University, Chongqing, China
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23
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CRISPR technologies for stem cell engineering and regenerative medicine. Biotechnol Adv 2019; 37:107447. [PMID: 31513841 DOI: 10.1016/j.biotechadv.2019.107447] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/03/2019] [Accepted: 09/06/2019] [Indexed: 12/13/2022]
Abstract
CRISPR/Cas9 system exploits the concerted action of Cas9 nuclease and programmable single guide RNA (sgRNA), and has been widely used for genome editing. The Cas9 nuclease activity can be abolished by mutation to yield the catalytically deactivated Cas9 (dCas9). Coupling with the customizable sgRNA for targeting, dCas9 can be fused with transcription repressors to inhibit specific gene expression (CRISPR interference, CRISPRi) or fused with transcription activators to activate the expression of gene of interest (CRISPR activation, CRISPRa). Here we introduce the principles and recent advances of these CRISPR technologies, their delivery vectors and review their applications in stem cell engineering and regenerative medicine. In particular, we focus on in vitro stem cell fate manipulation and in vivo applications such as prevention of retinal and muscular degeneration, neural regeneration, bone regeneration, cartilage tissue engineering, as well as treatment of diseases in blood, skin and liver. Finally, the challenges to translate CRISPR to regenerative medicine and future perspectives are discussed and proposed.
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24
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Arriaga MA, Ding MH, Gutierrez AS, Chew SA. The Application of microRNAs in Biomaterial Scaffold-Based Therapies for Bone Tissue Engineering. Biotechnol J 2019; 14:e1900084. [PMID: 31166084 DOI: 10.1002/biot.201900084] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/28/2019] [Indexed: 12/13/2022]
Abstract
In recent years, the application of microRNAs (miRNAs) or anti-microRNAs (anti-miRNAs) that can induce expression of the runt-related transcription factor 2 (RUNX2), a master regulator of osteogenesis, has been investigated as a promising alternative bone tissue engineering strategy. In this review, biomaterial scaffold-based applications that have been used to deliver cells expressing miRNAs or anti-miRNAs that induce expression of RUNX2 for bone tissue engineering are discussed. An overview of the components of the scaffold-based therapies including the miRNAs/anti-miRNAs, cell types, gene delivery vectors, and scaffolds that have been applied are provided. To date, there have been nine miRNAs/anti-miRNAs (i.e., miRNA-26a, anti-miRNA-31, anti-miRNA-34a, miRNA-135, anti-miRNA-138, anti-miRNA-146a, miRNA-148b, anti-miRNA-221, and anti-miRNA-335) that have been incorporated into scaffold-based bone tissue engineering applications and investigated in an in vivo bone critical-sized defect model. For all of the biomaterial scaffold-based miRNA therapies that have been developed thus far, cells that are transfected or transduced with the miRNA/anti-miRNA are loaded into the scaffolds and implanted at the site of interest instead of locally delivering the miRNA/anti-miRNAs directly from the scaffolds. Thus, future work may focus on developing biomaterial scaffolds to deliver miRNAs or anti-miRNAs into cells in vivo.
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Affiliation(s)
- Marco A Arriaga
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd, Brownsville, TX, 78520, USA
| | - May-Hui Ding
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd, Brownsville, TX, 78520, USA
| | - Astrid S Gutierrez
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd, Brownsville, TX, 78520, USA
| | - Sue Anne Chew
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd, Brownsville, TX, 78520, USA
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25
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Hu L, Li Y, Deng F, Hu Z, Wang H, Wang M. Improving Baculovirus Transduction of Mammalian Cells by Incorporation of Thogotovirus Glycoproteins. Virol Sin 2019; 34:454-466. [PMID: 31201733 DOI: 10.1007/s12250-019-00133-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 04/09/2019] [Indexed: 12/19/2022] Open
Abstract
Baculovirus can transduce a wide range of mammalian cells and is considered a promising gene therapy vector. However, the low transduction efficiency of baculovirus into many mammalian cells limits its practical application. Co-expressing heterologous viral glycoproteins (GPs), such as vesicular stomatitis virus G protein (VSV G), with baculovirus native envelope protein GP64 is one of the feasible strategies for improving virus transduction. Tick-borne thogotoviruses infect mammals and their GPs share sequence/structure homology and common evolutionary origins with baculovirus GP64. Herein, we tested whether thogotovirus GPs could facilitate the entry of the prototype baculovirus Autographa californica multiple multiple nucleopolyhedrovirus (AcMNPV) into mammalian cells. The gp genes of two thogotoviruses, Thogoto virus and Dhori virus, were inserted into the AcMNPV genome. Both GPs were properly expressed and incorporated into the envelope of the recombinant AcMNPVs. The transduction rates of recombinant AcMNPVs expressing the two thogotovirus GPs increased for approximately 4-12 fold compared to the wild type AcMNPV in six of the 12 tested mammalian cell lines. It seemed that thogotovirus GPs provide the recombinant AcMNPVs with different cell tropisms and showed better performance in several mammalian cells compared to VSV G incorporated AcMNPV. Further studies showed that the improved transduction was a result of augmented virus-endosome fusion and endosome escaping, rather than increased cell binding or internalization. We found the AcMNPV envelope protein GP64-mediated fusion was enhanced by the thogotovirus GPs at relatively higher pH conditions. Therefore, the thogotovirus GPs represent novel candidates to improve baculovirus-based gene delivery vectors.
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Affiliation(s)
- Liangbo Hu
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Yimeng Li
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Fei Deng
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Zhihong Hu
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Hualin Wang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China.
| | - Manli Wang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China.
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Baculovirus IE2 Interacts with Viral DNA through Daxx To Generate an Organized Nuclear Body Structure for Gene Activation in Vero Cells. J Virol 2019; 93:JVI.00149-19. [PMID: 30728268 DOI: 10.1128/jvi.00149-19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 01/31/2019] [Indexed: 12/14/2022] Open
Abstract
Upon virus infection of a cell, the uncoated DNA is usually blocked by the host intrinsic immune system inside the nucleus. Although it is crucial for the virus to counteract the host intrinsic immune system and access its genome, little is known about how viruses can knock down host restriction and identify their blocked genomes for later viral gene activation and replication. We found that upon baculovirus transduction into Vero E6 cells, the invading viral DNA is trapped by the cellular death domain-associated protein (Daxx) and histone H3.3 in the nucleus, resulting in gene inactivation. IE2, a baculovirus transactivator, targets host Daxx through IE2 SUMO-interacting motifs (SIMs) to indirectly access viral DNA and forms unique nuclear body structures, which we term clathrate cage-like apparatus (CCLAs), at the early transduction stage. At the later transduction stage, CCLAs gradually enlarge, and IE2 continues to closely interact with viral DNA but no longer associates with Daxx. The association with Daxx is essential for IE2 CCLA formation, and the enlarged CCLAs are capable of transactivating viral but not chromosomal DNA of Vero E6 cells. Our study reveals that baculovirus IE2 counteracts the cellular intrinsic immune system by specifically targeting Daxx and H3.3 to associate with viral DNA indirectly and efficiently. IE2 then utilizes this association with viral DNA to establish a unique CCLA cellular nanomachinery, which is visible under light microscopy as an enclosed environment for proper viral gene expression.IMPORTANCE The major breakthrough of this work is that viral protein IE2 localizes and transactivates its own viral DNA through a most unlikely route, i.e., host proteins Daxx and H3.3, which are designed to efficiently restrict viral DNA from expression. By interacting with these host intrinsic immune factors, IE2 can thus target the viral DNA and then form a unique spherical nuclear body, which we name the CCLA, to enclose the viral DNA and necessary factors to assist in high-level transactivation. Our study represents one of the most complete investigations of nuclear body formation. In addition, so far only RNA or protein molecules have been reported as potential nucleators for initiating nuclear body formation; our study may represent the first example showing that DNA can be a nucleator for a new class of nuclear body formation.
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27
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Koczka K, Ernst W, Palmberger D, Klausberger M, Nika L, Grabherr R. Development of a Dual-Vector System Utilizing MicroRNA Mimics of the Autographa californica miR-1 for an Inducible Knockdown in Insect Cells. Int J Mol Sci 2019; 20:E533. [PMID: 30691228 PMCID: PMC6387257 DOI: 10.3390/ijms20030533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 01/22/2019] [Accepted: 01/24/2019] [Indexed: 11/16/2022] Open
Abstract
The baculovirus-insect cell expression system is a popular tool for the manufacturing of various attractive recombinant products. Over the years, several attempts have been made to engineer and further improve this production platform by targeting host or baculoviral genes by RNA interference. In this study, an inducible knockdown system was established in insect (Sf9) cells by combining an artificial microRNA precursor mimic of baculoviral origin and the bacteriophage T7 transcription machinery. Four structurally different artificial precursor constructs were created and tested in a screening assay. The most efficient artificial microRNA construct resulted in a 69% reduction in the fluorescence intensity of the target enhanced yellow fluorescent protein (eYFP). Next, recombinant baculoviruses were created carrying either the selected artificial precursor mimic under the transcriptional control of the T7 promoter or solely the T7 RNA polymerase under a baculoviral promoter. Upon co-infecting Sf9 cells with these two viruses, the fluorescence intensity of eYFP was suppressed by ~30⁻40% on the protein level. The reduction in the target mRNA level was demonstrated with real-time quantitative PCR. The presented inducible knockdown system may serve as an important and valuable tool for basic baculovirus-insect cell research and for the improvement of production processes using this platform.
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Affiliation(s)
- Krisztina Koczka
- Austrian Centre of Industrial Biotechnology - acib, A-1190 Vienna, Austria.
- Department of Biotechnology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria.
| | - Wolfgang Ernst
- Austrian Centre of Industrial Biotechnology - acib, A-1190 Vienna, Austria.
- Department of Biotechnology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria.
| | - Dieter Palmberger
- Austrian Centre of Industrial Biotechnology - acib, A-1190 Vienna, Austria.
| | - Miriam Klausberger
- Austrian Centre of Industrial Biotechnology - acib, A-1190 Vienna, Austria.
- Department of Biotechnology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria.
| | - Lisa Nika
- Department of Biotechnology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria.
| | - Reingard Grabherr
- Austrian Centre of Industrial Biotechnology - acib, A-1190 Vienna, Austria.
- Department of Biotechnology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria.
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28
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Kawai Y, Kawabata C, Sakaguchi M, Tamura T. Protection of Baculovirus Vectors Expressing Complement Regulatory Proteins against Serum Complement Attack. Biol Pharm Bull 2019; 41:1600-1605. [PMID: 30270330 DOI: 10.1248/bpb.b18-00451] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Baculovirus vectors (BVs) enable safe and efficient gene delivery to mammalian cells and are useful in a wide range of applications, including gene therapy and in vivo analysis of gene functions. We previously developed BVs expressing malaria sporozoite surface proteins for targeting liver cells or hepatocytes. However, BVs are known to be very vulnerable to complement attack and efforts to overcome their inactivation based on complement are important. In this study, BVs expressing complement regulatory proteins (CRPs) on the surfaces of virions were developed to inhibit complement reactions. Decay accelerating factor (DAF; CD55)-type BVs exhibited significantly higher complement resistance than control BVs without any CRPs in HepG2 cells transduction, although the transduction efficacy of DAF-type BV was low. In contrast, CD46-DAF-CD59 fusion type BVs showed significantly higher transduction efficacy and complement resistance than both control and DAF-type BVs. DAF-type and CD46-DAF-CD59 type BVs repressed formation of the membrane attack complex, a terminal product of complement reaction cascades, induced by BVs. These results suggest that the CD46-DAF-CD59 fusion construct confers complement protection ability superior to that of the DAF construct in gene delivery under complement active serum.
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Affiliation(s)
| | | | - Miako Sakaguchi
- Electron Microscope Room, Institute of Tropical Medicine, Nagasaki University
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Zhao Z, Wang L, Yue D, Ye B, Li P, Zhang B, Fan Q. Evaluation of Reference Genes for Normalization of RT-qPCR Gene Expression Data for Trichoplusia ni Cells During Antheraea pernyi (Lepidoptera: Saturniidae) Multicapsid Nucleopolyhedrovirus (AnpeNPV) Infection. JOURNAL OF INSECT SCIENCE (ONLINE) 2019; 19:5280859. [PMID: 30624703 PMCID: PMC6324657 DOI: 10.1093/jisesa/iey133] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Indexed: 06/01/2023]
Abstract
Baculovirus infection impacts global gene expression in the host cell, including the expression of housekeeping genes. Evaluation of candidate reference genes during a viral infection will inform the selection of appropriate reference gene(s) for the normalization of expression data generated by Reverse Transcription Quantitative Real-timePolymerase Chain Reaction (RT-qPCR). Antheraea pernyi multicapsid nucleopolyhedrovirus (AnpeNPV) is able to infect the High Five cells (Tn-Hi5). In the present study, 10 candidate reference genes were evaluated in AnpeNPV-infected Tn-Hi5 cells. Gene expression data were analyzed using geNorm, NormFinder, BestKeeper, and RefFinder. The candidate genes were further validated as reliable reference genes for RT-qPCR by analyzing the expression of three target genes. The results of data analysis using four statistical methods showed that RPS18 was the least stable among the candidate reference genes tested. 18S rRNA and 28S rRNA were not suitable as reference genes for RT-qPCR analysis in AnpeNPV-infected Tn-Hi5 cells. Comprehensive ranking of the 10 candidate reference genes by RefFinder analysis indicated that Ann B, c45128_g1, and ACT were the top three genes. Normalization of the expression of three target genes using the candidate reference genes indicated the same expression pattern when Ann B and c45128_g1 were used as reference genes, with slight differences in the relative expression at each infection time point. Overall, Ann B and c45128_g1 were recommended to be more suitable than the most commonly used reference genes, such as ACT, GAPDH, and TUB, for RT-qPCR data normalization in AnpeNPV-infected Tn-Hi5 cells up to 48 hpi.
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Affiliation(s)
- Zhenjun Zhao
- Dalian Institute of Biotechnology, Liaoning Academy of Agricultural Sciences, Dalian, P. R. China
| | - Linmei Wang
- Dalian Institute of Biotechnology, Liaoning Academy of Agricultural Sciences, Dalian, P. R. China
| | - Dongmei Yue
- Dalian Institute of Biotechnology, Liaoning Academy of Agricultural Sciences, Dalian, P. R. China
| | - Bo Ye
- Dalian Institute of Biotechnology, Liaoning Academy of Agricultural Sciences, Dalian, P. R. China
| | - Peipei Li
- Dalian Institute of Biotechnology, Liaoning Academy of Agricultural Sciences, Dalian, P. R. China
| | - Bo Zhang
- Dalian Institute of Biotechnology, Liaoning Academy of Agricultural Sciences, Dalian, P. R. China
| | - Qi Fan
- Dalian Institute of Biotechnology, Liaoning Academy of Agricultural Sciences, Dalian, P. R. China
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Wang Q, Fang J, Pan Q, Wang Y, Xue T, Li L, Chen T. Efficient and Stable Delivery of Multiple Genes to Fish Cells by a Modified Recombinant Baculovirus System. Int J Mol Sci 2018; 19:ijms19123767. [PMID: 30486430 PMCID: PMC6321422 DOI: 10.3390/ijms19123767] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 11/23/2018] [Accepted: 11/23/2018] [Indexed: 12/26/2022] Open
Abstract
The recombinant baculovirus has been widely used as an efficient tool to mediate gene delivery into mammalian cells but has barely been used in fish cells. In the present study, we constructed a recombinant baculovirus containing the dual-promoter cytomegalovirus (CMV) and white spot syndrome virus (WSSV) immediate-early gene 1 (ie1) (WSSV ie1), followed by a puromycin⁻green fluorescent protein (Puro-GFP, pf) or puromycin⁻red fluorescent protein (Puro-RFP, pr) cassette, which simultaneously allowed for easy observation, rapid titer determination, drug selection, and exogenous gene expression. This recombinant baculovirus was successfully transduced into fish cells, including Mylopharyngodon piceus bladder (MPB), fin (MPF), and kidney (MPK); Oryzias latipes spermatogonia (SG3); and Danio rerio embryonic fibroblast (ZF4) cells. Stable transgenic cell lines were generated after drug selection, which was further verified by Western blot. A cell monoclonal formation assay proved the stable heredity of transgenic MPB cells. In addition, a recombinant baculovirus containing a pr cassette and four transcription factors for induced pluripotent stem cells (iPSC) was constructed and transduced into ZF4 cells, and these exogenous genes were simultaneously delivered and transcribed efficiently in drug-selected ZF4 cells, proving the practicability of this modified recombinant baculovirus system. We also proved that the WSSV ie1 promoter had robust activity in fish cells in vitro and in vivo. Taken together, this modified recombinant baculovirus can be a favorable transgenic tool to obtain transient or stable transgenic fish cells.
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Affiliation(s)
- Qian Wang
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China.
| | - Jian Fang
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China.
| | - Qihua Pan
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China.
| | - Yizhou Wang
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China.
| | - Ting Xue
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China.
| | - Lingyu Li
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China.
| | - Tiansheng Chen
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China.
- Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Changde 41500, China.
- Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan 430070, China.
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Spatial control of in vivo CRISPR-Cas9 genome editing via nanomagnets. Nat Biomed Eng 2018; 3:126-136. [PMID: 30944431 PMCID: PMC6450418 DOI: 10.1038/s41551-018-0318-7] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 10/12/2018] [Indexed: 11/09/2022]
Abstract
The potential of clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR associated protein 9 (Cas9)-based therapeutic genome editing is hampered by difficulties in the control of the in vivo activity of CRISPR-Cas9. To minimize any genotoxicity, precise activation of CRISPR-Cas9 in the target tissue is desirable. Here, we show that, by complexing magnetic nanoparticles with recombinant baculoviral vectors (MNP-BVs), CRISPR-Cas9-mediated genome editing can be activated locally in vivo via a magnetic field. The baculoviral vector was chosen for in vivo gene delivery because of its large loading capacity and ability to locally overcome systemic inactivation by the complement system. We demonstrate that a locally applied magnetic field can enhance the cellular entry of MNP-BVs, thereby avoiding baculoviral vector inactivation and causing a transient transgene expression in the target tissue. Because baculoviral vectors are inactivated elsewhere, gene delivery and in vivo genome editing via MNP-BVs are tissue specific.
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Lin CW, Cheng MC, Lin SY, Hung SH, Jhang SY, Chang CW, Chang PC, Hu YC. Hybrid baculovirus-mediated prolonged hemagglutinin expression and secretion in vivo enhances the vaccine efficacy. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.05.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Molinari P, Molina GN, Tavarone E, Del Médico Zajac MP, Morón G, Taboga O. Baculovirus capsid display in vaccination schemes: effect of a previous immunity against the vector on the cytotoxic response to delivered antigens. Appl Microbiol Biotechnol 2018; 102:10139-10146. [PMID: 30238142 DOI: 10.1007/s00253-018-9368-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 08/27/2018] [Accepted: 09/03/2018] [Indexed: 10/28/2022]
Abstract
The baculovirus Autographa californica multiple nuclear polyhedrosis virus (AcMNPV) infects lepidopteran invertebrates as natural hosts, although it also has been used as display vector for vaccine development. In this work, we evaluated the effectiveness of repetitive doses of AcMNPV-based vectors on the cytotoxic immune response specific to the capsid-displayed heterologous antigen ovalbumin (OVA). Our results demonstrate that baculovirus vectors induce a boosting effect in the cytotoxic immune response to OVA, making possible to recover the levels obtained in the primary response. Moreover, mice preimmunized with wild-type baculovirus showed a complete lack of antigen-specific CD8 cytotoxic T lymphocytes (CTLs) that may be related to the presence of antibodies directed to baculoviral surface proteins, particularly to GP64. However, baculovirus was able to induce the innate immune response in spite of a previous response against this vector, although some quantitative differences reflect a distinct activation of the immune cells in prime and boost. This is the first report in which the novel capsid display strategy is evaluated in prime-boost schemes to improve efficient CTL responses.
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Affiliation(s)
- Paula Molinari
- Instituto de Biotecnología, Centro Nacional de Investigaciones Agropecuarias, INTA Castelar, Nicolás Repetto y De Los Reseros S/N° (B1686IGC), Buenos Aires, Argentina. .,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
| | - Guido N Molina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Eugenia Tavarone
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - María Paula Del Médico Zajac
- Instituto de Biotecnología, Centro Nacional de Investigaciones Agropecuarias, INTA Castelar, Nicolás Repetto y De Los Reseros S/N° (B1686IGC), Buenos Aires, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Gabriel Morón
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Oscar Taboga
- Instituto de Biotecnología, Centro Nacional de Investigaciones Agropecuarias, INTA Castelar, Nicolás Repetto y De Los Reseros S/N° (B1686IGC), Buenos Aires, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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Lin MW, Tseng YW, Shen CC, Hsu MN, Hwu JR, Chang CW, Yeh CJ, Chou MY, Wu JC, Hu YC. Synthetic switch-based baculovirus for transgene expression control and selective killing of hepatocellular carcinoma cells. Nucleic Acids Res 2018; 46:e93. [PMID: 29905834 PMCID: PMC6125686 DOI: 10.1093/nar/gky447] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 05/04/2018] [Accepted: 05/31/2018] [Indexed: 12/13/2022] Open
Abstract
Baculovirus (BV) holds promise as a vector for anticancer gene delivery to combat the most common liver cancer-hepatocellular carcinoma (HCC). However, in vivo BV administration inevitably results in BV entry into non-HCC normal cells, leaky anticancer gene expression and possible toxicity. To improve the safety, we employed synthetic biology to engineer BV for transgene expression regulation. We first uncovered that miR-196a and miR-126 are exclusively expressed in HCC and normal cells, respectively, which allowed us to engineer a sensor based on distinct miRNA expression signature. We next assembled a synthetic switch by coupling the miRNA sensor and RNA binding protein L7Ae for translational repression, and incorporated the entire device into a single BV. The recombinant BV efficiently entered HCC and normal cells and enabled cis-acting transgene expression control, by turning OFF transgene expression in normal cells while switching ON transgene expression in HCC cells. Using pro-apoptotic hBax as the transgene, the switch-based BV selectively killed HCC cells in separate culture and mixed culture of HCC and normal cells. These data demonstrate the potential of synthetic switch-based BV to distinguish HCC and non-HCC normal cells for selective transgene expression control and killing of HCC cells.
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Affiliation(s)
- Mei-Wei Lin
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Yen-Wen Tseng
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Chih-Che Shen
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Mu-Nung Hsu
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Jih-Ru Hwu
- Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu, Taiwan
| | - Chin-Wei Chang
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Chung-Ju Yeh
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Min-Yuan Chou
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Jaw-Ching Wu
- Medical Research Department, Taipei Veterans General Hospital, Taipei Taiwan
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yu-Chen Hu
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu, Taiwan
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Jin S, Cheng T, Guo Y, Lin P, Zhao P, Liu C, Kusakabe T, Xia Q. Bombyx mori epidermal growth factor receptor is required for nucleopolyhedrovirus replication. INSECT MOLECULAR BIOLOGY 2018; 27:464-477. [PMID: 29603500 DOI: 10.1111/imb.12386] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Baculovirus-host interactions are important models for studying the biological control of lepidopteran pests. Research on baculovirus-host interactions has focussed on baculovirus manipulation of cellular signalling pathways, including the extracellular signal-regulated kinase (ERK) and phosphatidylinositol-3-kinases/protein kinase B (PI3K/Akt) signalling pathways. However, the mechanism underlying ERK and PI3K/Akt activation and function in response to baculovirus infection remains poorly understood. Here, we demonstrated that baculovirus activated the Bombyx mori ERK and PI3K/Akt signalling pathways via the B. mori epidermal growth factor receptor (BmEGFR). To further characterize the function of the BmEGFR/ERK signalling pathway in baculovirus replication, we calculated genome-wide changes in kinase-chromatin interactions for ERK after baculovirus infection using chromatin immunoprecipitation followed by high-throughput sequencing. A Gene Ontology analysis showed that virus infection had effects on the biological regulation, cellular process and metabolic process pathways. Moreover, ERK was shown to regulate the transcription of late viral genes. Taken together, our results suggest that baculoviruses manipulate components of the host cell machinery for replication via modulation of the BmEGFR signalling pathway.
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Affiliation(s)
- S Jin
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - T Cheng
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Y Guo
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - P Lin
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - P Zhao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - C Liu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Chongqing, China
| | - T Kusakabe
- Laboratory of Silkworm Science, Kyushu University Graduate School of Bioresource and Bioenvironmental Sciences, Hakozaki, Fukuoka, Japan
| | - Q Xia
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Chongqing, China
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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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Mansouri M, Berger P. Baculovirus for gene delivery to mammalian cells: Past, present and future. Plasmid 2018; 98:1-7. [PMID: 29842913 DOI: 10.1016/j.plasmid.2018.05.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/25/2018] [Accepted: 05/25/2018] [Indexed: 12/11/2022]
Abstract
Baculovirus is an insect virus which has been used for more than thirty years for production of recombinant proteins in insect cells. However, baculovirus can also be harnessed for efficient gene delivery to mammalian cells if it is equipped with mammalian promoters. This technology is known as BacMam and has been used for gene delivery to immortalized cell lines, stem cells, and primary cells, as well as for gene delivery in animals. Baculovirus has unique features when compared to mammalian viruses. Besides the fact that it is replication-incompetent and does not integrate into the host genome, it has large capacity for foreign DNA. This capacity can for example be used to deliver multiple genes for reprogramming of stem cells, or for delivery of large homology constructs for genome editing. In this review, we provide a brief overview of baculovirus-based gene delivery and its recent applications in therapy and basic research. We also describe how baculovirus is manipulated for efficient transduction in mammalian cells and we highlight possible future improvements.
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Affiliation(s)
- Maysam Mansouri
- Paul Scherrer Institute, Biomolecular Research, Applied Molecular Biology, CH-5232 Villigen, Switzerland; ETH Zürich, Department of Biosystems Science and Engineering, Mattenstrasse 26, CH-4058 Basel, Switzerland
| | - Philipp Berger
- Paul Scherrer Institute, Biomolecular Research, Applied Molecular Biology, CH-5232 Villigen, Switzerland.
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Li M, Wang Y, Liu M, Lan X. Multimodality reporter gene imaging: Construction strategies and application. Theranostics 2018; 8:2954-2973. [PMID: 29896296 PMCID: PMC5996353 DOI: 10.7150/thno.24108] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 03/06/2018] [Indexed: 12/11/2022] Open
Abstract
Molecular imaging has played an important role in the noninvasive exploration of multiple biological processes. Reporter gene imaging is a key part of molecular imaging. By combining with a reporter probe, a reporter protein can induce the accumulation of specific signals that are detectable by an imaging device to provide indirect information of reporter gene expression in living subjects. There are many types of reporter genes and each corresponding imaging technique has its own advantages and drawbacks. Fused reporter genes or single reporter genes with products detectable by multiple imaging modalities can compensate for the disadvantages and potentiate the advantages of each modality. Reporter gene multimodality imaging could be applied to trace implanted cells, monitor gene therapy, assess endogenous molecular events, screen drugs, etc. Although several types of multimodality imaging apparatus and multimodality reporter genes are available, more sophisticated detectors and multimodality reporter gene systems are needed.
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Affiliation(s)
- Mengting Li
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
- Hubei Province Key Laboratory of Molecular Imaging
| | - Yichun Wang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
- Hubei Province Key Laboratory of Molecular Imaging
| | - Mei Liu
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
- Hubei Province Key Laboratory of Molecular Imaging
| | - Xiaoli Lan
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
- Hubei Province Key Laboratory of Molecular Imaging
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Tamura T, Kawabata C, Matsushita S, Sakaguchi M, Yoshida S. Malaria sporozoite protein expression enhances baculovirus-mediated gene transfer to hepatocytes. J Gene Med 2018; 18:75-85. [PMID: 27007512 DOI: 10.1002/jgm.2879] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Revised: 02/28/2016] [Accepted: 03/16/2016] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Baculovirus vector (BV) is able to transduce foreign genes into mammalian cells efficiently and safely by incorporating a mammalian promoter. In the present study, we tailored the surface proteins expressed by malaria sporozoites to enhance hepatocyte transduction. Sporozoites infect hepatocytes within minutes of initial entry into the blood circulation. Infectivity and hepatocyte-specific selectivity are mediated by the interplay between hepatocytes and sporozoite surface proteins. The circumsporozoite protein (CSP) and the thrombospondin-related anonymous protein (TRAP) bind to the heparan sulfate proteoglycan on the hepatocyte surface and contribute to sporozoite infection and hepatocyte selectivity. METHODS BVs displaying an ectodomain consisting of three different CSP variants (full-length, N-terminal and C-terminal) or TRAP on the virus envelope were constructed, and the resulting in vitro hepatocyte transduction efficiency was evaluated. RESULTS We demonstrated improved hepatocyte transduction efficiency in BVs expressing CSP or TRAP ectodomains compared to BVs without malaria surface proteins. In addition, gene transduction efficiencies for BVs displaying CSP or TRAP are higher than those expressing the preS1 antigen of the hepatitis B virus. CONCLUSIONS BVs expressing CSP or TRAP in the ectodomain could represent a promising hepatocyte-specific gene delivery methodology. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Takahiko Tamura
- Laboratory of Vaccinology and Applied Immunology, Kanazawa University, School of Pharmacy, Kanazawa, Japan
| | - Chiaki Kawabata
- Laboratory of Vaccinology and Applied Immunology, Kanazawa University, School of Pharmacy, Kanazawa, Japan
| | - Shunsuke Matsushita
- Laboratory of Vaccinology and Applied Immunology, Kanazawa University, School of Pharmacy, Kanazawa, Japan
| | - Miako Sakaguchi
- Electron Microscope Room, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Shigeto Yoshida
- Laboratory of Vaccinology and Applied Immunology, Kanazawa University, School of Pharmacy, Kanazawa, Japan
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40
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Liu X, Li Y, Hu X, Yi Y, Zhang Z. Gene delivery and gene expression in vertebrate using baculovirus Bombyx mori nucleopolyhedrovirus vector. Oncotarget 2017; 8:106017-106025. [PMID: 29285311 PMCID: PMC5739698 DOI: 10.18632/oncotarget.22522] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 10/28/2017] [Indexed: 01/03/2023] Open
Abstract
The baculovirus Autographa californica multicapsid nucleopolyhedrovirus (AcMNPV) has been investigated as a possible tool for gene therapy, but its inhibition by complement proteins in human serum limits its applicability. Here, we used the baculovirus Bombyx mori nucleopolyhedrovirus (BmNPV) to construct a gene delivery vector in which a reporter gene is driven by a cytomegalovirus IE promoter. Enhanced green fluorescent protein (EGFP) and luciferase reporter genes were used to test the efficiency of gene delivery. In vitro complement inactivation data showed that the recombinant BmNPV vector was more stable in human serum than the recombinant AcMNPV vector. The recombinant BmNPV vector successfully delivered the reporter genes into different tissues and organs in mice and chicks. These results demonstrate that the BmNPV vector is more stability against complement inactivation in human serum than the AcMNPV vector, and indicate that it may be useful as an effective gene delivery vector for gene therapy in vertebrates.
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Affiliation(s)
- Xingjian Liu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yinü Li
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaoyuan Hu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yongzhu Yi
- The Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, China
| | - Zhifang Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
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Lee JY, Chang J. Recombinant baculovirus-based vaccine expressing M2 protein induces protective CD8 + T-cell immunity against respiratory syncytial virus infection. J Microbiol 2017; 55:900-908. [PMID: 29076066 DOI: 10.1007/s12275-017-7306-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/10/2017] [Accepted: 10/11/2017] [Indexed: 12/20/2022]
Abstract
Respiratory syncytial virus (RSV) is an important cause of acute lower respiratory tract disease in infants, young children, immunocompromised individuals, and the elderly. However, despite ongoing efforts to develop an RSV vaccine, there is still no authorized RSV vaccine for humans. Baculovirus has attracted attention as a vaccine vector because of its ability to induce a high level of humoral and cellular immunity, low cytotoxicity against various antigens, and biological safety for humans. In this study, we constructed a recombinant baculovirus- based vaccine expressing the M2 protein of RSV under the control of cytomegalovirus promoter (Bac_RSVM2) to induce CD8+ T-cell responses which play an important role in viral clearance, and investigated its protective efficacy against RSV infection. Immunization with Bac_RSVM2 via intranasal or intramuscular route effectively elicited the specific CD8+ T-cell responses. Most notably, immunization with Bac_RSVM2 vaccine almost completely protected mice from RSV challenge without vaccine-enhanced immunopathology. In conclusion, these results suggest that Bac_RSVM2 vaccine employing the baculovirus delivery platform has promising potential to be developed as a safe and novel RSV vaccine that provides protection against RSV infection.
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Affiliation(s)
- Jeong-Yoon Lee
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Jun Chang
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Republic of Korea.
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Wang CH, Naik NG, Liao LL, Wei SC, Chao YC. Global Screening of Antiviral Genes that Suppress Baculovirus Transgene Expression in Mammalian Cells. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2017; 6:194-206. [PMID: 28831401 PMCID: PMC5554962 DOI: 10.1016/j.omtm.2017.07.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Accepted: 07/13/2017] [Indexed: 12/31/2022]
Abstract
Although baculovirus has been used as a safe and convenient gene delivery vector in mammalian cells, baculovirus-mediated transgene expression is less effective in various mammalian cell lines. Identification of the negative regulators in host cells is necessary to improve baculovirus-based expression systems. Here, we performed high-throughput shRNA library screening, targeting 176 antiviral innate immune genes, and identified 43 host restriction factor genes in a human A549 lung carcinoma cell line. Among them, suppression of receptor interaction protein kinase 1 (RIP1, also known as RIPK1) significantly increased baculoviral transgene expression without resulting in significant cell death. Silencing of RIP1 did not affect viral entry or cell viability, but it did inhibit nuclear translocation of the IRF3 and NF-κB transcription factors. Also, activation of downstream signaling mediators (such as TBK1 and IRF7) was affected, and subsequent interferon and cytokine gene expression levels were abolished. Further, Necrostatin-1 (Nec-1)—an inhibitor of RIP1 kinase activity—dramatically increased baculoviral transgene expression in RIP1-silenced cells. Using baculovirus as a model system, this study presents an initial investigation of large numbers of human cell antiviral innate immune response factors against a “nonadaptive virus.” In addition, our study has made baculovirus a more efficient gene transfer vector for some of the most frequently used mammalian cell systems.
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Affiliation(s)
- Chia-Hung Wang
- Department of Life Science and Institute of Genome Science, National Yang Ming University, No. 115, Section 2, Linong St., Beitou District, Taipei 112, Taiwan.,Institute of Molecular Biology, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang, Taipei 115, Taiwan
| | - Nenavath Gopal Naik
- Institute of Molecular Biology, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang, Taipei 115, Taiwan
| | - Lin-Li Liao
- Institute of Molecular Biology, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang, Taipei 115, Taiwan
| | - Sung-Chan Wei
- Institute of Molecular Biology, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang, Taipei 115, Taiwan
| | - Yu-Chan Chao
- Institute of Molecular Biology, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang, Taipei 115, Taiwan
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A Novel Ideal Radionuclide Imaging System for Non-invasively Cell Monitoring built on Baculovirus Backbone by Introducing Sleeping Beauty Transposon. Sci Rep 2017; 7:43879. [PMID: 28262785 PMCID: PMC5338331 DOI: 10.1038/srep43879] [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: 10/28/2016] [Accepted: 01/30/2017] [Indexed: 12/17/2022] Open
Abstract
Sleeping Beauty (SB) transposon is an attractive tool in stable transgene integration both in vitro and in vivo; and we introduced SB transposon into recombinant sodium-iodide symporter baculovirus system (Bac-NIS system) to facilitate long-term expression of recombinant sodium-iodide symporter. In our study, two hybrid baculovirus systems (Bac-eGFP-SB-NeoR and Bac-NIS-SB-NeoR) were successfully constructed and used to infect U87 glioma cells. After G418 selection screening, the Bac-eGFP-SB-NeoR-U87 cells remained eGFP positive, at the 18th and 196th day post transfection (96.03 ± 0.21% and 97.43 ± 0.81%), while eGFP positive population declined significantly at 18 days in cells transfected with unmodified baculovirus construct. NIS gene expression by Bac-NIS-SB-NeoR-U87 cells was also maintained for 28 weeks as determined by radioiodine uptake assay, reverse transcription-polymerase chain reaction (RT-PCR) and Western Blot (WB) assay. When transplanted in mice, Bac-NIS-SB-NeoR-U87 cells also expressed NIS gene stably as monitored by SPECT imaging for 43 days until the tumor-bearing mice were sacrificed. Herein, we showed that incorporation of SB in Bac-NIS system (hybrid Bac-NIS-SB-NeoR) can achieve a long-term transgene expression and can improve radionuclide imaging in cell tracking and monitoring in vivo.
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Molina GN, Tavarone E, Taboga O, Molinari P. Two Distinctive Phenotypes of AcMNPV Display Different Immune Abilities and Intracellular Destiny. PLoS One 2016; 11:e0168939. [PMID: 28033419 PMCID: PMC5199047 DOI: 10.1371/journal.pone.0168939] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 12/08/2016] [Indexed: 11/18/2022] Open
Abstract
The budded phenotype (BV) of the baculovirus AcMNPV has been demonstrated to have strong immunostimulatory properties that are relevant for the development of vaccines and antiviral therapies. Although the occluded phenotype (ODV) shares the main structural proteins and its genome with BV, it has been poorly studied in mammals. In this study, we assessed the capacity of ODV to induce immune responses in mice. In contrast to BVs, ODVs failed to promote the secretion of IFN-gamma, IL-6 and Il-12 and to induce antiviral activity against VSV in the short term. Furthermore, ODVs were unable to induce cellular immunity against a coadministered antigen 7 days after inoculation. By analyzing the interaction of ODVs with BMDCs, we observed that although ODVs entered the cells reaching late and acidic endosomes, they did not induce their maturation. Finally, we also analyzed if BVs and ODVs followed different routes in the cell during the infection. BVs, but not ODVs, colocalized with the protein ovalbumin in compartments with the presence of proteases. The results suggest that structural differences could be responsible for their different destinies in the dendritic cell and this could lead to a different impact on the immune response.
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Affiliation(s)
- Guido N. Molina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CABA, Argentina
- Instituto de Biotecnología, Centro Nacional de Investigaciones Agropecuarias (CNIA), INTA Castelar, Buenos Aires, Argentina
| | - Eugenia Tavarone
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CABA, Argentina
- Instituto de Biotecnología, Centro Nacional de Investigaciones Agropecuarias (CNIA), INTA Castelar, Buenos Aires, Argentina
| | - Oscar Taboga
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CABA, Argentina
- Instituto de Biotecnología, Centro Nacional de Investigaciones Agropecuarias (CNIA), INTA Castelar, Buenos Aires, Argentina
- * E-mail:
| | - Paula Molinari
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CABA, Argentina
- Instituto de Biotecnología, Centro Nacional de Investigaciones Agropecuarias (CNIA), INTA Castelar, Buenos Aires, Argentina
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Nasimuzzaman M, Lynn D, van der Loo JC, Malik P. Purification of baculovirus vectors using heparin affinity chromatography. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2016; 3:16071. [PMID: 27933303 PMCID: PMC5142510 DOI: 10.1038/mtm.2016.71] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 09/13/2016] [Accepted: 09/19/2016] [Indexed: 12/21/2022]
Abstract
Baculoviruses are commonly used for recombinant protein and vaccine production. Baculoviruses are nonpathogenic to vertebrates, have a large packaging capacity, display broad host and cell type tropism, infect both dividing and nondividing cells, and do not elicit strong immune or allergic responses in vivo. Hence, their use as gene delivery vehicles has become increasingly popular in recent years. Moreover, baculovirus vectors carrying mammalian regulatory elements can efficiently transduce and express transgenes in mammalian cells. Based on the finding that heparan sulfate, which is structurally similar to heparin, is an attachment receptor for baculovirus, we developed a novel scalable baculovirus purification method using heparin-affinity chromatography. Baculovirus supernatants were loaded onto a POROS heparin column, washed to remove unbound materials, and eluted with 1.5 mol/l NaCl, which yielded a recovery of purified baculovirus of 85%. After ultracentrifugation, baculovirus titers increased from 200- to 700-fold with overall yields of 26–29%. We further show that baculovirus particles were infectious, normal in morphology and size, despite high-salt elution and shear forces used during purification and concentration. Our chromatography-based purification method is scalable and, together with ultracentrifugation and/or tangential flow filtration, will be suitable for large-scale manufacturing of baculovirus stocks for protein and vaccine production and in gene therapy applications.
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Affiliation(s)
- Md Nasimuzzaman
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA; University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Danielle Lynn
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center , Cincinnati, Ohio, USA
| | - Johannes Cm van der Loo
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA; University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Punam Malik
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA; University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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Khan AH, Bayat H, Rajabibazl M, Sabri S, Rahimpour A. Humanizing glycosylation pathways in eukaryotic expression systems. World J Microbiol Biotechnol 2016; 33:4. [DOI: 10.1007/s11274-016-2172-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 11/04/2016] [Indexed: 01/27/2023]
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47
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Wu HC, Cha HJ, Bentley WE. Evaluating Baculovirus Infection Using Green Fluorescent Protein and Variants. Methods Mol Biol 2016; 1350:447-59. [PMID: 26820872 DOI: 10.1007/978-1-4939-3043-2_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
By use of a strategy incorporating the green fluorescent protein (GFP), facile and rapid monitoring and visualization of baculovirus infection in insect cells is possible in vivo. This chapter describes two techniques for simple determination of virus titer in the baculovirus expression system using GFP co-expression and rapid monitoring of Sf-9 insect cell infection using a combination of GFP and the early-to-late (ETL) promoter of the virus vector. Because of its early appearance, GFP, when placed under the control of ETL promoter, will facilitate vector construction, virus isolation, and titer determination.
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Affiliation(s)
- Hsuan-Chen Wu
- Department of Biochemical Science and Technology, National Taiwan University, Taipei, 10617, Taiwan.,Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - Hyung Joon Cha
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Korea
| | - William E Bentley
- Fischell Department of Bioengineering, University of Maryland, 2226 Jeong H. Kim Engineering Building, College Park, MD, 20742, USA. .,Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA.
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48
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Imai A, Tadokoro T, Kita S, Horiuchi M, Fukuhara H, Maenaka K. Establishment of the BacMam system using silkworm baculovirus. Biochem Biophys Res Commun 2016; 478:580-5. [PMID: 27480929 DOI: 10.1016/j.bbrc.2016.07.104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 07/23/2016] [Indexed: 12/26/2022]
Abstract
The BacMam system uses modified insect viruses (baculoviruses) as vehicles to efficiently deliver genes for expression in mammalian cells. The technique can be widely applied to large-scale recombinant protein production with appropriate modifications, high-throughput screening platforms for cell-based assays, and the delivery of large genes. The silkworm system is often employed as a rapid and cost-effective approach for recombinant baculovirus generation. Here we have developed the novel BacMam system using silkworm baculovirus, and shown the successful expression of EGFP in mammalian cells. The transduction to mammalian cells via the BacMam system was improved by adding phosphate-buffered saline and sodium butyrate to the culture medium and lowering the temperature after viral infection. This study provides an alternative gene delivery system for mammalian cells, which has various potential applications, including efficient native protein production and gene therapy.
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Affiliation(s)
- Atsutoshi Imai
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
| | - Takashi Tadokoro
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
| | - Shunsuke Kita
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
| | - Masataka Horiuchi
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, 1757 Kanazawa, Tobetsu-cho, Ishikari-gun, Hokkaido, 061-0293, Japan
| | - Hideo Fukuhara
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Japan.
| | - Katsumi Maenaka
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Japan; CREST, Japan Science and Technology Agency, Saitama, 332-0012, Japan.
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49
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Sim SH, Kim JY, Seong BL, Nguyen HH, Chang J. Baculovirus Displaying Hemagglutinin Elicits Broad Cross-Protection against Influenza in Mice. PLoS One 2016; 11:e0152485. [PMID: 27023684 PMCID: PMC4811570 DOI: 10.1371/journal.pone.0152485] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 03/15/2016] [Indexed: 12/26/2022] Open
Abstract
The widespread influenza virus infection further emphasizes the need for novel vaccine strategies that effectively reduce the impact of epidemic as well as pandemic influenza. Conventional influenza vaccines generally induce virus neutralizing antibody responses which are specific for a few antigenically related strains within the same subtype. However, antibodies directed against the conserved stalk domain of HA could neutralize multiple subtypes of influenza virus and thus provide broad-spectrum protection. In this study, we designed and constructed a recombinant baculovirus-based vaccine, rBac-HA virus, that expresses full-length HA of pandemic H1N1 influenza virus (A/California/04/09) on the viral envelope. We demonstrated that repeated intranasal immunizations with rBac-HA virus induced HA stalk-specific antibody responses and protective immunity against homologous as well as heterosubtypic virus challenge. The adoptive transfer experiment shows that the cross-protection is conferred by the immune sera which contain HA stalk-specific antibodies. These results warrant further development of rBac-HA virus as a broad-protective vaccine against influenza. The vaccine induced protection against infection with the same subtype as well as different subtype, promising a potential universal vaccine for broad protection against different subtypes to control influenza outbreaks including pandemic.
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Affiliation(s)
- Sang-Hee Sim
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Korea
| | - Joo Young Kim
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Korea
| | - Baik Lin Seong
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Huan Huu Nguyen
- Laboratory of Viral Immunology, International Vaccine Institute, Seoul, Korea
| | - Jun Chang
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Korea
- * E-mail:
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50
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Zhang J, Fan HY, Zhang Z, Zhang J, Zhang J, Huang JN, Ye Y, Liao M. Recombinant baculovirus vaccine containing multiple M2e and adjuvant LTB induces T cell dependent, cross-clade protection against H5N1 influenza virus in mice. Vaccine 2016; 34:622-629. [DOI: 10.1016/j.vaccine.2015.12.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 10/19/2015] [Accepted: 12/15/2015] [Indexed: 12/01/2022]
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