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Yuan B, Liu Y, Lv M, Sui Y, Hou S, Yang T, Belhadj Z, Zhou Y, Chang N, Ren Y, Sun C. Virus-like particle-based nanocarriers as an emerging platform for drug delivery. J Drug Target 2023; 31:433-455. [PMID: 36940208 DOI: 10.1080/1061186x.2023.2193358] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
New nanocarrier technologies are emerging, and they have great potential for improving drug delivery, targeting efficiency, and bioavailability. Virus-like particles (VLPs) are natural nanoparticles from animal and plant viruses and bacteriophages. Hence, VLPs present several great advantages, such as morphological uniformity, biocompatibility, reduced toxicity, and easy functionalisation. VLPs can deliver many active ingredients to the target tissue and have great potential as a nanocarrier to overcome the limitations associated with other nanoparticles. This review will focus primarily on the construction and applications of VLPs, particularly as a novel nanocarrier to deliver active ingredients. Herein, the main methods for the construction, purification, and characterisation of VLPs, as well as various VLP-based materials used in delivery systems are summarised. The biological distribution of VLPs in drug delivery, phagocyte-mediated clearance, and toxicity are also discussed.
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Affiliation(s)
| | - Yang Liu
- School of Pharmaceutical Sciences, Zhengzhou University, No.100, Kexue Avenue, Zhengzhou 450001, China
| | - Meilin Lv
- Harbin Medical University-Daqing, Daqing 163319, China
| | - Yilei Sui
- Harbin Medical University-Daqing, Daqing 163319, China
| | - Shenghua Hou
- Harbin Medical University-Daqing, Daqing 163319, China
| | - Tinghui Yang
- Harbin Medical University-Daqing, Daqing 163319, China
| | - Zakia Belhadj
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yulong Zhou
- College of Animal Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Naidan Chang
- Harbin Medical University-Daqing, Daqing 163319, China
| | - Yachao Ren
- Harbin Medical University-Daqing, Daqing 163319, China.,School of Chemistry and Chemical Engineering, Tianjin University of Technology, tianjin, 300000, China
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2
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Yu T, Sun Z, Cao X, Pang Q, Deng H. Recent trends in T7 phage application in diagnosis and treatment of various diseases. Int Immunopharmacol 2022; 110:109071. [DOI: 10.1016/j.intimp.2022.109071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 06/25/2022] [Accepted: 07/14/2022] [Indexed: 11/05/2022]
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3
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Sun H, Chang L, Yan Y, Wang L. Hepatitis B virus pre-S region: Clinical implications and applications. Rev Med Virol 2020; 31. [PMID: 33314434 DOI: 10.1002/rmv.2201] [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: 06/03/2020] [Revised: 11/22/2020] [Accepted: 11/29/2020] [Indexed: 12/12/2022]
Abstract
Hepatitis B virus (HBV) infection is a major threat to global public health, which can result in many acute and chronic liver diseases. HBV, a member of the family Hepadnaviridae, is a small enveloped DNA virus containing a circular genome of 3.2 kb. Located upstream of the S-open-reading frame of the HBV genome is the pre-S region, which is vital to the viral life cycle. The pre-S region has high variability and many mutations in the pre-S region are associated with several liver diseases, such as fulminant hepatitis (FH), liver cirrhosis (LC), and hepatocellular carcinoma (HCC). In addition, the pre-S region has been applied in the development of several pre-S-based materials and systems to prevent or treat HBV infection. In conclusion, the pre-S region plays an essential role in the occurrence, diagnosis, and treatment of HBV-related liver diseases, which may provide a novel perspective for the study of HBV infection and relevant diseases.
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Affiliation(s)
- Huizhen Sun
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, PR China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, PR China
- Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, PR China
| | - Le Chang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, PR China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, PR China
| | - Ying Yan
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, PR China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, PR China
| | - Lunan Wang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, PR China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, PR China
- Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, PR China
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4
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Zhang L, Cao Y, Liu M, Chen X, Xiang Q, Tian J. Functional recombinant single-chain variable fragment antibody against Agkistrodon acutus venom. Exp Ther Med 2019; 17:3768-3774. [PMID: 30988762 DOI: 10.3892/etm.2019.7348] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 04/11/2018] [Indexed: 11/06/2022] Open
Abstract
Agkistrodon acutus bites are conventionally treated with animal-derived antivenom, the use of which is limited due to allergic reactions and serum sickness. Thus in the present study, the genes of humanized antibodies produced in response to A. acutus venom were extracted from lymphocytes from patients bitten by A. acutus. A single-chain variable fragment (scFv) library against venom was constructed using a T7 phage display system. ScFv genes that exhibited high affinity to venom were selected by library biopanning. An expression system was constructed for antivenom scFv fused with 6×His tag at its N- and C-terminus using pET-28a (+) vector. The scFv proteins could achieve functional and soluble expression in Escherichia coli via the auto-induction method. The purity and activity of the scFv genes and proteins were confirmed by SDS-PAGE, western blotting and ELISA. The results indicated that three soluble scFv proteins exhibited specific affinity to A. acutus venom and were harvested via the auto-induction method.
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Affiliation(s)
- Lei Zhang
- Department of Emergency, Southwest Hospital of the Third Military Medical University, Chongqing 400038, P.R. China
| | - Yuliang Cao
- Department of Emergency, Southwest Hospital of the Third Military Medical University, Chongqing 400038, P.R. China
| | - Minghua Liu
- Department of Emergency, Southwest Hospital of the Third Military Medical University, Chongqing 400038, P.R. China
| | - Xiangyu Chen
- Department of Emergency, Southwest Hospital of the Third Military Medical University, Chongqing 400038, P.R. China
| | - Qiang Xiang
- Department of Emergency, Southwest Hospital of the Third Military Medical University, Chongqing 400038, P.R. China
| | - Jun Tian
- Department of Emergency, Southwest Hospital of the Third Military Medical University, Chongqing 400038, P.R. China
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Li N, Zhu Y. Targeting liver cancer stem cells for the treatment of hepatocellular carcinoma. Therap Adv Gastroenterol 2019; 12:1756284818821560. [PMID: 30719075 PMCID: PMC6348509 DOI: 10.1177/1756284818821560] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 11/15/2018] [Indexed: 02/04/2023] Open
Abstract
Liver cancer is one of the most common malignant tumors and prognosis remains poor. It has been increasingly recognized that liver cancer stem cells (LCSCs) are responsible for the carcinogenesis, recurrence, metastasis and chemoresistance of hepatocellular carcinoma (HCC). Targeting LCSCs is promising to be a new direction for the treatment of HCC. Herein, we summarize the potentially therapeutic targets in LCSCs at the level of genes, molecules and cells, such as knockout of oncogenes or oncoproteins, restoring the silent tumor suppressor genes, inhibition of the transcription factors and regulation of noncoding RNAs (including microRNAs and long noncoding RNAs) in LCSCs at the genetic level; inhibition of markers and blockade of the key signaling pathways of LCSCs at the molecular level; and inhibiting autophagy and application of oncolytic adenoviruses in LCSCs at the cellular level. Moreover, we analyze the potential targets in LCSCs to eliminate chemoresistance of HCC. Thereinto, the suppression of autophagy and Nanog by chloroquine and shRNA respectively may be the most promising targeting approaches. These targets may provide novel therapeutic strategies for the treatment of HCC by targeting LCSCs.
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Affiliation(s)
- Na Li
- The First Affiliated Hospital of Dalian Medical University, Dalian, China
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Chen F, Jiang R, Wang Y, Zhu M, Zhang X, Dong S, Shi H, Wang L. Recombinant Phage Elicits Protective Immune Response against Systemic S. globosa Infection in Mouse Model. Sci Rep 2017; 7:42024. [PMID: 28165018 PMCID: PMC5292741 DOI: 10.1038/srep42024] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 01/06/2017] [Indexed: 12/16/2022] Open
Abstract
Sporothrix globosa is a type of fungus that typically infects immunocompromised patients. Its prevention continues to pose a challenge. A 70-KDa glycoprotein (Gp70) of Sporothrix has been previously reported to protect host against infection from this fungus. Here, we displayed an epitope peptide (kpvqhalltplgldr) of Gp70 on the major coat protein (pIII), and investigated its efficiency as a vaccine for preventing S. globosa infection. The recombinant phage and the heat-killed S. globosa were used to immunize mice separately. In this study, we evaluated the humoral and cellular immune responses in the mice and demonstrated that recombinant phage could induce mice to produce a stronger immune response and generate antibodies to inhibit S. globosa infection. Furthermore, immunization with recombinant phage could increase the survival rate of S. globosa infection in mice. All these results together indicated that recombinant phages displaying kpvqhalltplgldr are a potential vaccine candidate against S. globosa infection.
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Affiliation(s)
- Feng Chen
- Dermatology Department, China-Japan Union Hospital of Jilin University, 126Xiantai Street, Changchun, Jilin Province 130033, People's Republic of China
| | - Rihua Jiang
- Dermatology Department, China-Japan Union Hospital of Jilin University, 126Xiantai Street, Changchun, Jilin Province 130033, People's Republic of China
| | - Yicun Wang
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetic, the Second Hospital of Jilin University, 218 Ziqiang Street, Changchun, Jilin Province 130041, People's Republic of China
| | - Mingji Zhu
- Dermatology Department, China-Japan Union Hospital of Jilin University, 126Xiantai Street, Changchun, Jilin Province 130033, People's Republic of China
| | - Xu Zhang
- Department of Hang Surgery, Second Hospital of Qinhuangdao, Hebei 066600, People's Republic of China
| | - Shuai Dong
- Institute of Cytology and Genetics, School of Life Sciences, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin Province 130024, People's Republic of China
| | - Hongxi Shi
- Institute of Cytology and Genetics, School of Life Sciences, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin Province 130024, People's Republic of China
| | - Li Wang
- Institute of Cytology and Genetics, School of Life Sciences, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin Province 130024, People's Republic of China
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7
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The Hepatitis B Virus Core Variants that Expose Foreign C-Terminal Insertions on the Outer Surface of Virus-Like Particles. Mol Biotechnol 2016; 57:1038-49. [PMID: 26446016 PMCID: PMC4619458 DOI: 10.1007/s12033-015-9895-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The major immunodominant region (MIR) and N-terminus of the hepatitis B virus (HBV) core (HBc) protein were used to expose foreign insertions on the outer surface of HBc virus-like particles (VLPs). The additions to the HBc positively charged arginine-rich C-terminal (CT) domain are usually not exposed on the VLP surface. Here, we constructed a set of recombinant HBcG vectors in which CT arginine stretches were substituted by glycine residues. In contrast to natural HBc VLPs and recombinant HBc VLP variants carrying native CT domain, the HBcG VLPs demonstrated a lowered capability to pack bacterial RNA during expression in Escherichia coli cells. The C-terminal addition of a model foreign epitope from the HBV preS1 sequence to the HBcG vectors resulted in the exposure of the inserted epitope on the VLP surface, whereas the same preS1 sequences added to the native CT of the natural HBc protein remained buried within the HBc VLPs. Based on the immunisation of mice, the preS1 epitope added to the HBcG vectors as a part of preS1(20-47) and preS1phil sequences demonstrated remarkable immunogenicity. The same epitope added to the original C-terminus of the HBc protein did not induce a notable level of anti-preS1 antibodies. HBcG vectors may contribute to the further development of versatile HBc VLP-based vaccine and gene therapy applications.
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Wen AM, Steinmetz NF. Design of virus-based nanomaterials for medicine, biotechnology, and energy. Chem Soc Rev 2016; 45:4074-126. [PMID: 27152673 PMCID: PMC5068136 DOI: 10.1039/c5cs00287g] [Citation(s) in RCA: 246] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review provides an overview of recent developments in "chemical virology." Viruses, as materials, provide unique nanoscale scaffolds that have relevance in chemical biology and nanotechnology, with diverse areas of applications. Some fundamental advantages of viruses, compared to synthetically programmed materials, include the highly precise spatial arrangement of their subunits into a diverse array of shapes and sizes and many available avenues for easy and reproducible modification. Here, we will first survey the broad distribution of viruses and various methods for producing virus-based nanoparticles, as well as engineering principles used to impart new functionalities. We will then examine the broad range of applications and implications of virus-based materials, focusing on the medical, biotechnology, and energy sectors. We anticipate that this field will continue to evolve and grow, with exciting new possibilities stemming from advancements in the rational design of virus-based nanomaterials.
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Affiliation(s)
- Amy M Wen
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
| | - Nicole F Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA. and Department of Radiology, Case Western Reserve University, Cleveland, OH 44106, USA and Department of Materials Science and Engineering, Case Western Reserve University, Cleveland, OH 44106, USA and Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106, USA and Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA
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9
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Shirbaghaee Z, Bolhassani A. Different applications of virus-like particles in biology and medicine: Vaccination and delivery systems. Biopolymers 2016; 105:113-32. [PMID: 26509554 PMCID: PMC7161881 DOI: 10.1002/bip.22759] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 10/25/2015] [Accepted: 10/25/2015] [Indexed: 12/17/2022]
Abstract
Virus-like particles (VLPs) mimic the whole construct of virus particles devoid of viral genome as used in subunit vaccine design. VLPs can elicit efficient protective immunity as direct immunogens compared to soluble antigens co-administered with adjuvants in several booster injections. Up to now, several prokaryotic and eukaryotic systems such as insect, yeast, plant, and E. coli were used to express recombinant proteins, especially for VLP production. Recent studies are also generating VLPs in plants using different transient expression vectors for edible vaccines. VLPs and viral particles have been applied for different functions such as gene therapy, vaccination, nanotechnology, and diagnostics. Herein, we describe VLP production in different systems as well as its applications in biology and medicine.
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Affiliation(s)
- Zeinab Shirbaghaee
- Department of Hepatitis and AIDSPasteur Institute of IranTehranIran
- Department of Immunology, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Azam Bolhassani
- Department of Hepatitis and AIDSPasteur Institute of IranTehranIran
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10
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Sagona AP, Grigonyte AM, MacDonald PR, Jaramillo A. Genetically modified bacteriophages. Integr Biol (Camb) 2016; 8:465-74. [DOI: 10.1039/c5ib00267b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Applications of genetically modified bacteriophages.
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Affiliation(s)
- Antonia P. Sagona
- Warwick Integrative Synthetic Biology Centre and School of Life Sciences
- University of Warwick
- Coventry
- UK
| | - Aurelija M. Grigonyte
- Warwick Integrative Synthetic Biology Centre and School of Life Sciences
- University of Warwick
- Coventry
- UK
- Synthetic Biology Centre for Doctoral Training
| | - Paul R. MacDonald
- Warwick Integrative Synthetic Biology Centre and School of Life Sciences
- University of Warwick
- Coventry
- UK
- MOAC DTC
| | - Alfonso Jaramillo
- Warwick Integrative Synthetic Biology Centre and School of Life Sciences
- University of Warwick
- Coventry
- UK
- iSSB
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Toita R, Kawano T, Kang JH, Murata M. Applications of human hepatitis B virus preS domain in bio- and nanotechnology. World J Gastroenterol 2015; 21:7400-7411. [PMID: 26139986 PMCID: PMC4481435 DOI: 10.3748/wjg.v21.i24.7400] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 02/24/2015] [Accepted: 05/04/2015] [Indexed: 02/06/2023] Open
Abstract
Human hepatitis B virus (HBV) is a member of the family Hepadnaviridae, and causes acute and chronic infections of the liver. The hepatitis B surface antigen (HBsAg) contains the large (L), middle (M), and small (S) surface proteins. The L protein consists of the S protein, preS1, and preS2. In HBsAg, the preS domain (preS1 + preS2) plays a key role in the infection of hepatocytic cells by HBV and has several immunogenic epitopes. Based on these characteristics of preS, several preS-based diagnostic and therapeutic materials and systems have been developed. PreS1-specific monoclonal antibodies (e.g., MA18/7 and KR127) can be used to inhibit HBV infection. A myristoylated preS1 peptide (amino acids 2-48) also inhibits the attachment of HBV to HepaRG cells, primary human hepatocytes, and primary tupaia hepatocytes. Antibodies and antigens related to the components of HBsAg, preS (preS1 + preS2), or preS1 can be available as diagnostic markers of acute and chronic HBV infections. Hepatocyte-targeting delivery systems for therapeutic molecules (drugs, genes, or proteins) are very important for increasing the clinical efficacy of these molecules and in reducing their adverse effects on other organs. The selective delivery of diagnostic molecules to target hepatocytic cells can also improve the efficiency of diagnosis. In addition to the full-length HBV vector, preS (preS1 + preS2), preS1, and preS1-derived fragments can be useful in hepatocyte-specific targeting. In this review, we discuss the literature concerning the applications of the HBV preS domain in bio- and nanotechnology.
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Tan WS, Ho KL. Phage display creates innovative applications to combat hepatitis B virus. World J Gastroenterol 2014; 20:11650-11670. [PMID: 25206271 PMCID: PMC4155357 DOI: 10.3748/wjg.v20.i33.11650] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Accepted: 05/05/2014] [Indexed: 02/06/2023] Open
Abstract
Hepatitis B virus (HBV) has killed countless lives in human history. The invention of HBV vaccines in the 20th century has reduced significantly the rate of the viral infection. However, currently there is no effective treatment for chronic HBV carriers. Newly emerging vaccine escape mutants and drug resistant strains have complicated the viral eradication program. The entire world is now facing a new threat of HBV and human immunodeficiency virus co-infection. Could phage display provide solutions to these life-threatening problems? This article reviews critically and comprehensively the innovative and potential applications of phage display in the development of vaccines, therapeutic agents, diagnostic reagents, as well as gene and drug delivery systems to combat HBV. The application of phage display in epitope mapping of HBV antigens is also discussed in detail. Although this review mainly focuses on HBV, the innovative applications of phage display could also be extended to other infectious diseases.
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Bakhshinejad B, Sadeghizadeh M. Bacteriophages and their applications in the diagnosis and treatment of hepatitis B virus infection. World J Gastroenterol 2014; 20:11671-11683. [PMID: 25206272 PMCID: PMC4155358 DOI: 10.3748/wjg.v20.i33.11671] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 01/11/2014] [Accepted: 04/16/2014] [Indexed: 02/06/2023] Open
Abstract
Hepatitis B virus (HBV) infection is a major global health challenge leading to serious disorders such as cirrhosis and hepatocellular carcinoma. Currently, there exist various diagnostic and therapeutic approaches for HBV infection. However, prevalence and hazardous effects of chronic viral infection heighten the need to develop novel methodologies for the detection and treatment of this infection. Bacteriophages, viruses that specifically infect bacterial cells, with a long-established tradition in molecular biology and biotechnology have recently been introduced as novel tools for the prevention, diagnosis and treatment of HBV infection. Bacteriophages, due to tremendous genetic flexibility, represent potential to undergo a huge variety of surface modifications. This property has been the rationale behind introduction of phage display concept. This powerful approach, together with combinatorial chemistry, has shaped the concept of phage display libraries with diverse applications for the detection and therapy of HBV infection. This review aims to offer an insightful overview of the potential of bacteriophages in the development of helpful prophylactic (vaccine design), diagnostic and therapeutic strategies for HBV infection thereby providing new perspectives to the growing field of bacteriophage researches directing towards HBV infection.
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Cui J, Ren HJ, Liu RD, Wang L, Zhang ZF, Wang ZQ. Phage-displayed specific polypeptide antigens induce significant protective immunity against Trichinella spiralis infection in BALB/c mice. Vaccine 2013; 31:1171-7. [DOI: 10.1016/j.vaccine.2012.12.070] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 12/04/2012] [Accepted: 12/24/2012] [Indexed: 11/24/2022]
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Pushko P, Pumpens P, Grens E. Development of Virus-Like Particle Technology from Small Highly Symmetric to Large Complex Virus-Like Particle Structures. Intervirology 2013; 56:141-65. [DOI: 10.1159/000346773] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Sun D, Shi H, Chen J, Shi D, Zhu Q, Zhang H, Liu S, Wang Y, Qiu H, Feng L. Generation of a mouse scFv library specific for porcine aminopeptidase N using the T7 phage display system. J Virol Methods 2012; 182:99-103. [PMID: 22481024 PMCID: PMC7119651 DOI: 10.1016/j.jviromet.2012.03.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Accepted: 03/20/2012] [Indexed: 11/25/2022]
Abstract
Porcine aminopeptidase N (pAPN) is a common cellular receptor for swine transmissible gastroenteritis virus (TGEV) and porcine epidemic diarrhea virus (PEDV). To investigate single-chain fragment variable (scFv) repertoire against pAPN, the genes encoding the immunoglobulin light chain variable region (VL) and heavy chain variable region (VH) were amplified by reverse transcript polymerase chain reaction (RT-PCR) using a series of degenerate primers from the spleen of BABL/c mice immunized with native pAPN. The VL and VH amplicons were combined randomly by a 12 amino acid flexible linker by splicing by overlap extension PCR (SOE-PCR), which produced the scFv gene repertoire. After ligation of the scFv gene repertoire into the T7Select10-3b vector, a mouse scFv phage library specific for pAPN was produced through in vitro packaging. The primary scFv library against pAPN contained 2.0×10(7) recombinant phage clones, and the titer of the amplified library was 3.6×10(9)pfu/mL. BstNI restriction analysis and DNA sequencing revealed that 28 phage clones from the primary pAPN scFv library showed excellent diversity. The effectiveness of the scFv library against pAPN was verified further by phage ELISA using the recombinant protein of the pAPN C subunit as coating antigen. The construction and evaluation of a murine scFv library against the common receptor pAPN of porcine coronaviruses TGEV and PEDV using the T7 phage display system are described.
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Affiliation(s)
- Dongbo Sun
- Division of Swine Infectious Diseases, National Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of the Chinese Academy of Agricultural Sciences, Nangang District, Harbin 150001, China.
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Lee KW, Tey BT, Ho KL, Tan WS. Delivery of chimeric hepatitis B core particles into liver cells. J Appl Microbiol 2011; 112:119-31. [PMID: 21992228 DOI: 10.1111/j.1365-2672.2011.05176.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AIMS To display a liver-specific ligand on the hepatitis B virus core particles for cell-targeting delivery. METHODS AND RESULTS A liver cell-binding ligand (preS1) was fused at the N-terminal end of the hepatitis B core antigen (HBcAg), but the fusion protein (preS1His(6) HBcAg) was insoluble in Escherichia coli and did not form virus-like particles (VLPs). A method to display the preS1 on the HBcAg particle was established by incorporating an appropriate molar ratio of the truncated HBcAg (tHBcAg) to the preS1His(6) HBcAg. Gold immunomicroscopy showed that the subunit mixture reassembled into icosahedral particles, displaying the preS1 ligand on the surface of VLPs. Fluorescence microscopy revealed that the preS1 ligand delivered the fluorescein-labelled VLPs into the HepG2 cells efficiently. CONCLUSIONS Chimeric VLPs containing the insoluble preS1His(6) HBcAg and highly soluble tHBcAg were produced by a novel incorporation method. The preS1 ligand was exposed on the surface of the VLPs and was shown to deliver fluorescein molecules into liver cells. SIGNIFICANCE AND IMPACT OF STUDY The newly established incorporation method can be used in the development of chimeric VLPs that could serve as potential nanovehicles to target various cells specifically by substituting the preS1 ligand with different cell-specific ligands.
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Affiliation(s)
- K W Lee
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Selangor, Malaysia
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18
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Isolation of a novel bacteriophage specific for the periodontal pathogen Fusobacterium nucleatum. Appl Environ Microbiol 2010; 76:7243-50. [PMID: 20851973 DOI: 10.1128/aem.01135-10] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Fusobacterium nucleatum is a periodontal pathogen that has been directly associated with the development and progression of periodontal disease, a widespread pathology that affects the support tissues of the tooth. We isolated a new bacteriophage (FnpΦ02) that specifically infects this bacterium. Transmission electron microscopy showed that the virion is composed of an icosahedral head and a segmented tail. The size of the phage genome was estimated to be approximately 59 kbp of double-stranded DNA. The morphological features and the genetic characteristics suggest that FnpΦ02 is part of the Siphoviridae family. Using one-step growth and adsorption experiments, the latent period, burst size, and adsorption rate were estimated to be 15 h, 100 infectious units per cell, and 7.5 × 10⁻¹⁰ ml min⁻¹, respectively. A small fragment of phage DNA was cloned and sequenced, showing 93% nucleotide identity with the phage PA6 of Propionibacterium acnes and amino acid identity with fragments of two proteins (Gp3 and Gp4) of this phage. To our knowledge, FnpΦ02 is the first phage described to infect Fusobacterium nucleatum and provides the base for future exploration of phages in the control of periodontal disease.
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