1
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Qin Y, Ou L, Zha L, Zeng Y, Li L. Delivery of nucleic acids using nanomaterials. MOLECULAR BIOMEDICINE 2023; 4:48. [PMID: 38092998 PMCID: PMC10719232 DOI: 10.1186/s43556-023-00160-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 11/21/2023] [Indexed: 12/17/2023] Open
Abstract
The increasing number of approved nucleic acid therapeutics demonstrates the potential for the prevention and treatment of a broad spectrum of diseases. This trend underscores the significant impact and promise of nucleic acid-based treatments in the field of medicine. Nevertheless, employing nucleic acids as therapeutics is challenging due to their susceptibility to degradation by nucleases and their unfavorable physicochemical characteristics that hinder delivery into cells. Appropriate vectors play a pivotal role in improving nucleic acid stability and delivering nucleic acids into specific cells. The maturation of delivery systems has led to breakthroughs in the development of therapeutics based on nucleic acids such as DNA, siRNA, and mRNA. Non-viral vectors have gained prominence among the myriad of nanomaterials due to low immunogenicity, ease of manufacturing, and simplicity of cost-effective, large-scale production. Here, we provide an overview of the recent advancements in nanomaterials for nucleic acid delivery. Specifically, we give a detailed introduction to the characteristics of polymers, lipids, and polymer-lipid hybrids, and provide comprehensive descriptions of their applications in nucleic acid delivery. Also, biological barriers, administration routes, and strategies for organ-selective delivery of nucleic acids are discussed. In summary, this review offers insights into the rational design of next-generation delivery vectors for nucleic acid delivery.
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Affiliation(s)
- Yuyang Qin
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610041, China
| | - Liyuan Ou
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610041, China
| | - Lili Zha
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610041, China
| | - Yue Zeng
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610041, China
| | - Ling Li
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610041, China.
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2
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Chowdhury N, Kundu A. Nanotechnology Platform for Advancing Vaccine Development against the COVID-19 Virus. Diseases 2023; 11:177. [PMID: 38131983 PMCID: PMC10742622 DOI: 10.3390/diseases11040177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/25/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023] Open
Abstract
The COVID-19 pandemic has had a profound impact on societies, public health, healthcare systems, and the world economy. With over 771 million people infected worldwide and a staggering death toll exceeding 6,960,783 as of 4 October 2023 (according to the World Health Organization), the urgency for a solution was paramount. Since the outbreak, the demand for immediate treatment for COVID-19 viral infection, as well as for effective vaccination against this virus, was soaring, which led scientists, pharmaceutical/biotech companies, government health agencies, etc., to think about a treatment strategy that could control and minimize this outbreak as soon as possible. Vaccination emerged as the most effective strategy to combat this infectious disease. For vaccination strategies, any conventional vaccine approach using attenuated live or inactivated/engineered virus, as well as other approaches, typically requires years of research and assessment. However, the urgency of the situation promoted a faster and more effective approach to vaccine development against COVID-19. The role of nanotechnology in designing, manufacturing, boosting, and delivering vaccines to the host to counter this virus was unquestionably valued and assessed. Several nanoformulations are discussed here in terms of their composition, physical properties, credibility, and applications in past vaccine development (as well as the possibility of using those used in previous applications for the generation of the COVID-19 vaccine). Controlling and eliminating the spread of the virus and preventing future recurrence requires a safe, tolerable, and effective vaccine strategy. In this review, we discuss the potential of nanoformulations as the basis for an effective vaccine strategy against COVID-19.
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Affiliation(s)
| | - Anup Kundu
- Department of Biology, Xavier University of Louisiana, New Orleans, LA 70125, USA;
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3
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Buzas D, Bunzel AH, Staufer O, Milodowski EJ, Edmunds GL, Bufton JC, Vidana Mateo BV, Yadav SKN, Gupta K, Fletcher C, Williamson MK, Harrison A, Borucu U, Capin J, Francis O, Balchin G, Hall S, Vega MV, Durbesson F, Lingappa S, Vincentelli R, Roe J, Wooldridge L, Burt R, Anderson RJL, Mulholland AJ, Bristol UNCOVER Group, Hare J, Bailey M, Davidson AD, Finn A, Morgan D, Mann J, Spatz J, Garzoni F, Schaffitzel C, Berger I. In vitro generated antibodies guide thermostable ADDomer nanoparticle design for nasal vaccination and passive immunization against SARS-CoV-2. Antib Ther 2023; 6:277-297. [PMID: 38075238 PMCID: PMC10702856 DOI: 10.1093/abt/tbad024] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/12/2023] [Accepted: 10/14/2023] [Indexed: 01/10/2024] Open
Abstract
Background Due to COVID-19, pandemic preparedness emerges as a key imperative, necessitating new approaches to accelerate development of reagents against infectious pathogens. Methods Here, we developed an integrated approach combining synthetic, computational and structural methods with in vitro antibody selection and in vivo immunization to design, produce and validate nature-inspired nanoparticle-based reagents against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Results Our approach resulted in two innovations: (i) a thermostable nasal vaccine called ADDoCoV, displaying multiple copies of a SARS-CoV-2 receptor binding motif derived epitope and (ii) a multivalent nanoparticle superbinder, called Gigabody, against SARS-CoV-2 including immune-evasive variants of concern (VOCs). In vitro generated neutralizing nanobodies and electron cryo-microscopy established authenticity and accessibility of epitopes displayed by ADDoCoV. Gigabody comprising multimerized nanobodies prevented SARS-CoV-2 virion attachment with picomolar EC50. Vaccinating mice resulted in antibodies cross-reacting with VOCs including Delta and Omicron. Conclusion Our study elucidates Adenovirus-derived dodecamer (ADDomer)-based nanoparticles for use in active and passive immunization and provides a blueprint for crafting reagents to combat respiratory viral infections.
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Affiliation(s)
- Dora Buzas
- Max Planck Bristol Centre for Minimal Biology, University of Bristol, Bristol BS8 1TS, UK
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, UK
| | - Adrian H Bunzel
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, UK
| | - Oskar Staufer
- Max Planck Bristol Centre for Minimal Biology, University of Bristol, Bristol BS8 1TS, UK
- Leibniz Institute for New Materials, Helmholtz Institute for Pharmaceutical Research and Center for Biophysics, Saarland University, Saarbrücken 66123, Germany
| | | | - Grace L Edmunds
- Bristol Veterinary School, University of Bristol, Bristol BS40 5DU UK
| | - Joshua C Bufton
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, UK
| | | | | | - Kapil Gupta
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, UK
- Imophoron Ltd, Science Creates Old Market, Midland Rd, Bristol BS2 0JZ UK
| | | | - Maia K Williamson
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, UK
| | | | - Ufuk Borucu
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, UK
| | - Julien Capin
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, UK
| | - Ore Francis
- Bristol Veterinary School, University of Bristol, Bristol BS40 5DU UK
| | - Georgia Balchin
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, UK
| | - Sophie Hall
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, UK
| | - Mirella V Vega
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, UK
| | - Fabien Durbesson
- Architecture et Fonction des Macromolécules Biologiques, UMR 7257, CNRS, Aix-Marseille Université, Marseille, France
| | | | - Renaud Vincentelli
- Architecture et Fonction des Macromolécules Biologiques, UMR 7257, CNRS, Aix-Marseille Université, Marseille, France
| | - Joe Roe
- Bristol Veterinary School, University of Bristol, Bristol BS40 5DU UK
| | - Linda Wooldridge
- Bristol Veterinary School, University of Bristol, Bristol BS40 5DU UK
| | - Rachel Burt
- Bristol Veterinary School, University of Bristol, Bristol BS40 5DU UK
| | | | | | | | - Jonathan Hare
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, UK
| | - Mick Bailey
- Bristol Veterinary School, University of Bristol, Bristol BS40 5DU UK
| | - Andrew D Davidson
- Imophoron Ltd, Science Creates Old Market, Midland Rd, Bristol BS2 0JZ UK
| | - Adam Finn
- Bristol University COVID-19 Emergency Research Group, Bristol BS8 1TH, UK
- Children's Vaccine Centre, Bristol Medical School, Bristol BS2 8EF UK
| | - David Morgan
- Imophoron Ltd, Science Creates Old Market, Midland Rd, Bristol BS2 0JZ UK
| | - Jamie Mann
- Bristol Veterinary School, University of Bristol, Bristol BS40 5DU UK
| | - Joachim Spatz
- Max Planck Bristol Centre for Minimal Biology, University of Bristol, Bristol BS8 1TS, UK
- Max Planck Institute for Medical Research, Heidelberg 69120, Germany
| | - Frederic Garzoni
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, UK
| | - Christiane Schaffitzel
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, UK
- Bristol University COVID-19 Emergency Research Group, Bristol BS8 1TH, UK
| | - Imre Berger
- Max Planck Bristol Centre for Minimal Biology, University of Bristol, Bristol BS8 1TS, UK
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, UK
- School of Chemistry, University of Bristol, Bristol BS8 1TS, UK
- Bristol University COVID-19 Emergency Research Group, Bristol BS8 1TH, UK
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4
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Shi X, Ding J, Zheng Y, Wang J, Sobhani N, Neeli P, Wang G, Zheng J, Chai D. HMGB1/GPC3 dual targeting vaccine induces dendritic cells-mediated CD8 +T cell immune response and elicits potential therapeutic effect in hepatocellular carcinoma. iScience 2023; 26:106143. [PMID: 36879804 PMCID: PMC9984564 DOI: 10.1016/j.isci.2023.106143] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/15/2022] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a fatal malignant tumor, but effective clinical interventions are limited. PLGA/PEI-mediated DNA vaccine encoding the dual targets of high-mobility group box 1 (HMGB1) or GPC3 was developed for HCC treatment. Compared with PLGA/PEI-GPC3 immunization, PLGA/PEI-HMGB1/GPC3 co-immunization significantly inhibited the subcutaneous tumor growth, while increasing the infiltration of CD8+T cells and DCs. Furthermore, the PLGA/PEI-HMGB1/GPC3 vaccine induced a strong CTL effect and promoted functional CD8+T cell proliferation. Intriguingly, the depletion assay proved that the therapeutic effect PLGA/PEI-HMGB1/GPC3 vaccine was dependent on antigen-specific CD8+T cell immune responses. In the rechallenge experiment, PLGA/PEI-HMGB1/GPC3 vaccine provided a long-lasting resistance to the growth of the contralateral tumor by inducing the memory CD8+T cell responses. Collectively, PLGA/PEI-HMGB1/GPC3 vaccine could induce a strong and long-lasting CTL effect and inhibit the tumor progression or re-attack. Therefore, the combined co-immunization of PLGA/PEI-HMGB1/GPC3 might be served as an effective anti-tumor strategy against HCC.
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Affiliation(s)
- Xiaoqing Shi
- Department of General Surgery, Lianyungang Hospital of Traditional Chinese Medicine, Lianyungang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Lianyungang, Jiangsu 222004, China
| | - Jiage Ding
- Department of Oncology, Xuzhou Central Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221009, China.,Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Yanyan Zheng
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China.,Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Jiawei Wang
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Navid Sobhani
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Praveen Neeli
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Gang Wang
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China.,Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Junnian Zheng
- Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China.,Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Dafei Chai
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China.,Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China.,Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
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5
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Masjedi M, Montahaei T, Sharafi Z, Jalali A. Pulmonary vaccine delivery: An emerging strategy for vaccination and immunotherapy. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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6
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Tang J, Cai L, Xu C, Sun S, Liu Y, Rosenecker J, Guan S. Nanotechnologies in Delivery of DNA and mRNA Vaccines to the Nasal and Pulmonary Mucosa. NANOMATERIALS 2022; 12:nano12020226. [PMID: 35055244 PMCID: PMC8777913 DOI: 10.3390/nano12020226] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 01/03/2022] [Accepted: 01/05/2022] [Indexed: 02/07/2023]
Abstract
Recent advancements in the field of in vitro transcribed mRNA (IVT-mRNA) vaccination have attracted considerable attention to such vaccination as a cutting-edge technique against infectious diseases including COVID-19 caused by SARS-CoV-2. While numerous pathogens infect the host through the respiratory mucosa, conventional parenterally administered vaccines are unable to induce protective immunity at mucosal surfaces. Mucosal immunization enables the induction of both mucosal and systemic immunity, efficiently removing pathogens from the mucosa before an infection occurs. Although respiratory mucosal vaccination is highly appealing, successful nasal or pulmonary delivery of nucleic acid-based vaccines is challenging because of several physical and biological barriers at the airway mucosal site, such as a variety of protective enzymes and mucociliary clearance, which remove exogenously inhaled substances. Hence, advanced nanotechnologies enabling delivery of DNA and IVT-mRNA to the nasal and pulmonary mucosa are urgently needed. Ideal nanocarriers for nucleic acid vaccines should be able to efficiently load and protect genetic payloads, overcome physical and biological barriers at the airway mucosal site, facilitate transfection in targeted epithelial or antigen-presenting cells, and incorporate adjuvants. In this review, we discuss recent developments in nucleic acid delivery systems that target airway mucosa for vaccination purposes.
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Affiliation(s)
- Jie Tang
- Department of Pediatrics, Ludwig-Maximilians University of Munich, 80337 Munich, Germany;
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane 4072, Australia;
| | - Larry Cai
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane 4072, Australia;
| | - Chuanfei Xu
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, Third Military Medical University, Chongqing 400038, China; (C.X.); (S.S.); (Y.L.)
| | - Si Sun
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, Third Military Medical University, Chongqing 400038, China; (C.X.); (S.S.); (Y.L.)
| | - Yuheng Liu
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, Third Military Medical University, Chongqing 400038, China; (C.X.); (S.S.); (Y.L.)
| | - Joseph Rosenecker
- Department of Pediatrics, Ludwig-Maximilians University of Munich, 80337 Munich, Germany;
- Correspondence: (J.R.); (S.G.); Tel.: +49-89-440057713 (J.R.); +86-23-68771645 (S.G.)
| | - Shan Guan
- Department of Pediatrics, Ludwig-Maximilians University of Munich, 80337 Munich, Germany;
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, Third Military Medical University, Chongqing 400038, China; (C.X.); (S.S.); (Y.L.)
- Correspondence: (J.R.); (S.G.); Tel.: +49-89-440057713 (J.R.); +86-23-68771645 (S.G.)
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7
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Mangla B, Javed S, Sultan MH, Ahsan W, Aggarwal G, Kohli K. Nanocarriers-Assisted Needle-Free Vaccine Delivery Through Oral and Intranasal Transmucosal Routes: A Novel Therapeutic Conduit. Front Pharmacol 2022; 12:757761. [PMID: 35087403 PMCID: PMC8787087 DOI: 10.3389/fphar.2021.757761] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 12/21/2021] [Indexed: 01/01/2023] Open
Abstract
Drug delivery using oral route is the most popular, convenient, safest and least expensive approach. It includes oral transmucosal delivery of bioactive compounds as the mucosal cavity offers an intriguing approach for systemic drug distribution. Owing to the dense vascular architecture and high blood flow, oral mucosal layers are easily permeable and can be an ideal site for drug administration. Recently, the transmucosal route is being investigated for other therapeutic candidates such as vaccines for their efficient delivery. Vaccines have the potential to trigger immune reactions and can act as both prophylactic and therapeutic conduit to a variety of diseases. Administration of vaccines using transmucosal route offers multiple advantages, the most important one being the needle-free (non-invasive) delivery. Development of needle-free devices are the most recent and pioneering breakthrough in the delivery of drugs and vaccines, enabling patients to avoid needles, reducing anxiety, pain and fear as well as improving compliance. Oral, nasal and aerosol vaccination is a novel immunization approach that utilizes a nanocarrier to administer the vaccine. Nanocarriers improve the bioavailability and serve as adjuvants to elicit a stronger immune response, resulting in increased effectiveness of vaccination. Drugs and vaccines with lower penetration abilities can also be delivered transmucosally while maintaining their biological function. The development of micro/nanocarriers for transmucosal delivery of macromolecules, vaccines and other substances is currently drawing much attention and a number of studies were performed recently. This comprehensive review is aimed to summarize the most recent investigations on needle-free and non-invasive approaches for the delivery of vaccines using oral transmucosal route, their strengths and associated challenges. The oral transmucosal vaccine delivery by nanocarriers is the most upcoming advancement in efficient vaccine delivery and this review would help further research and trials in this field.
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Affiliation(s)
- Bharti Mangla
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi, India
| | - Shamama Javed
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Muhammad H. Sultan
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Waquar Ahsan
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Geeta Aggarwal
- Department of Pharmaceutics, Delhi Pharmaceutical Sciences and Research University, New Delhi, India
| | - Kanchan Kohli
- Director Research and Publication, Lloyd Institute of Management and Technology (Pharm.), Greater Noida, India
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8
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Mann JFS, McKay PF, Klein K, Pankrac J, Tregoning JS, Shattock RJ. Blocking T cell egress with FTY720 extends DNA vaccine expression but reduces immunogenicity. Immunology 2021; 165:301-311. [PMID: 34775601 PMCID: PMC9426614 DOI: 10.1111/imm.13429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 09/22/2021] [Accepted: 09/24/2021] [Indexed: 12/01/2022] Open
Abstract
Optimal immunogenicity from nucleic acid vaccines requires a balance of antigen expression that effectively engages the host immune system without generating a cellular response that rapidly destroys cells producing the antigen and thereby limiting vaccine antigen expression. We investigated the role of the cellular response on the expression and antigenicity of DNA vaccines using a plasmid DNA construct expressing luciferase. Repeated intramuscular administration led to diminished luciferase expression, suggesting a role for immune‐mediated clearance of expression. To investigate the role of cell trafficking, we used the sphingosine 1‐phosphate receptor (S1PR) modulator, FTY720 (Fingolimod), which traps lymphocytes within the lymphoid tissues. When lymphocyte trafficking was blocked with FTY720, DNA transgene expression was maintained at a constant level for a significantly extended time period. Both continuous and staggered administration of FTY720 prolonged transgene expression. However, blocking lymphocyte egress during primary transgene administration did not result in an increase of transgene expression during secondary administration. Interestingly, there was a disconnect between transgene expression and immunogenicity, as increasing expression by this approach did not enhance the overall immune response. Furthermore, when FTY720 was administered alongside a DNA vaccine expressing the HIV gp140 envelope antigen, there was a significant reduction in both antigen‐specific antibody and T‐cell responses. This indicates that the developing antigen‐specific cellular response clears DNA vaccine expression but requires access to the site of expression in order to develop an effective immune response. DNA vaccine transgene expression in tissue can be extended through the co‐administration of the sphingosine 1‐phosphate receptor (S1PR) modulator, FTY720. Despite extending vaccine transgene expression, the administration of FTY720 can reduce vaccine elicited antibody and T‐cell responses.
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Affiliation(s)
- Jamie F S Mann
- Department of Infectious Diseases, Imperial College London, St Mary's Campus, London, W2 1PG, United Kingdom.,Bristol Veterinary School, University of Bristol, Langford House, Langford, Bristol, BS40 5DU, United Kingdom
| | - Paul F McKay
- Department of Infectious Diseases, Imperial College London, St Mary's Campus, London, W2 1PG, United Kingdom
| | - Katja Klein
- Department of Infectious Diseases, Imperial College London, St Mary's Campus, London, W2 1PG, United Kingdom.,School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, United Kingdom
| | - Joshua Pankrac
- Department of Microbiology and Immunology, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - John S Tregoning
- Department of Infectious Diseases, Imperial College London, St Mary's Campus, London, W2 1PG, United Kingdom
| | - Robin J Shattock
- Department of Infectious Diseases, Imperial College London, St Mary's Campus, London, W2 1PG, United Kingdom
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9
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Blakney AK, Zhu Y, McKay PF, Bouton C, Yeow J, Tang J, Hu K, Samnuan K, Grigsby CL, Shattock RJ, Stevens MM. Big Is Beautiful: Enhanced saRNA Delivery and Immunogenicity by a Higher Molecular Weight, Bioreducible, Cationic Polymer. ACS NANO 2020; 14:5711-5727. [PMID: 32267667 PMCID: PMC7304921 DOI: 10.1021/acsnano.0c00326] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/08/2020] [Indexed: 05/18/2023]
Abstract
Self-amplifying RNA (saRNA) vaccines are highly advantageous, as they result in enhanced protein expression compared to mRNA (mRNA), thus minimizing the required dose. However, previous delivery strategies were optimized for siRNA or mRNA and do not necessarily deliver saRNA efficiently due to structural differences of these RNAs, thus motivating the development of saRNA delivery platforms. Here, we engineer a bioreducible, linear, cationic polymer called "pABOL" for saRNA delivery and show that increasing its molecular weight enhances delivery both in vitro and in vivo. We demonstrate that pABOL enhances protein expression and cellular uptake via both intramuscular and intradermal injection compared to commercially available polymers in vivo and that intramuscular injection confers complete protection against influenza challenge. Due to the scalability of polymer synthesis and ease of formulation preparation, we anticipate that this polymer is highly clinically translatable as a delivery vehicle for saRNA for both vaccines and therapeutics.
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Affiliation(s)
- Anna K. Blakney
- Department
of Infectious Diseases, Imperial College
London, Norfolk Place, London, W2 1PG, U.K.
| | - Yunqing Zhu
- Department
of Materials, Department of Bioengineering, Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
- School
of Materials Science and Engineering, Tongji
University, Shanghai, 200092, China
| | - Paul F. McKay
- Department
of Infectious Diseases, Imperial College
London, Norfolk Place, London, W2 1PG, U.K.
| | - Clément
R. Bouton
- Department
of Infectious Diseases, Imperial College
London, Norfolk Place, London, W2 1PG, U.K.
| | - Jonathan Yeow
- Department
of Materials, Department of Bioengineering, Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
| | - Jiaqing Tang
- Department
of Materials, Department of Bioengineering, Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
| | - Kai Hu
- Department
of Infectious Diseases, Imperial College
London, Norfolk Place, London, W2 1PG, U.K.
| | - Karnyart Samnuan
- Department
of Infectious Diseases, Imperial College
London, Norfolk Place, London, W2 1PG, U.K.
| | - Christopher L. Grigsby
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 65, Sweden
| | - Robin J. Shattock
- Department
of Infectious Diseases, Imperial College
London, Norfolk Place, London, W2 1PG, U.K.
| | - Molly M. Stevens
- Department
of Materials, Department of Bioengineering, Institute of Biomedical
Engineering, Imperial College London, London, SW7 2AZ, U.K.
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 65, Sweden
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10
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Blakney AK, Liu R, Yilmaz G, Abdouni Y, McKay PF, Bouton CR, Shattock RJ, Becer CR. Precisely targeted gene delivery in human skin using supramolecular cationic glycopolymers. Polym Chem 2020. [DOI: 10.1039/d0py00449a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Gene delivery has become the focus of clinical treatments, thus motivating delivery strategies that are capable of targeting certain cell types in the context of both vaccines and therapeutics.
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Affiliation(s)
- Anna K. Blakney
- Department of Medicine
- Division of Infectious Diseases
- Section of Immunology of infection
- Imperial College London
- London W21PG
| | - Renjie Liu
- School of Engineering and Materials Science
- Queen Mary University of London
- London
- UK
- J. Crayton Pruitt Family Department of Biomedical Engineering
| | - Gokhan Yilmaz
- School of Pharmacy
- University of Nottingham
- Nottingham
- UK
- Department of Chemistry
| | - Yamin Abdouni
- School of Engineering and Materials Science
- Queen Mary University of London
- London
- UK
| | - Paul F. McKay
- Department of Medicine
- Division of Infectious Diseases
- Section of Immunology of infection
- Imperial College London
- London W21PG
| | - Clément R. Bouton
- Department of Medicine
- Division of Infectious Diseases
- Section of Immunology of infection
- Imperial College London
- London W21PG
| | - Robin J. Shattock
- Department of Medicine
- Division of Infectious Diseases
- Section of Immunology of infection
- Imperial College London
- London W21PG
| | - C. Remzi Becer
- School of Engineering and Materials Science
- Queen Mary University of London
- London
- UK
- Department of Chemistry
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11
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Abstract
Mucosal surfaces represent important routes of entry into the human body for the majority of pathogens, and they constitute unique sites for targeted vaccine delivery. Nanoparticle-based drug delivery systems are emerging technologies for delivering and improving the efficacy of mucosal vaccines. Recent studies have provided new insights into formulation and delivery aspects of importance for the design of safe and efficacious mucosal subunit vaccines based on nanoparticles. These include novel nanomaterials, their physicochemical properties and formulation approaches, nanoparticle interaction with immune cells in the mucosa, and mucosal immunization and delivery strategies. Here, we present recent progress in the application of nanoparticle-based approaches for mucosal vaccine delivery and discuss future research challenges and opportunities in the field.
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12
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Calzas C, Chevalier C. Innovative Mucosal Vaccine Formulations Against Influenza A Virus Infections. Front Immunol 2019; 10:1605. [PMID: 31379823 PMCID: PMC6650573 DOI: 10.3389/fimmu.2019.01605] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 06/27/2019] [Indexed: 12/11/2022] Open
Abstract
Despite efforts made to develop efficient preventive strategies, infections with influenza A viruses (IAV) continue to cause serious clinical and economic problems. Current licensed human vaccines are mainly inactivated whole virus particles or split-virion administered via the parenteral route. These vaccines provide incomplete protection against IAV in high-risk groups and are poorly/not effective against the constant antigenic drift/shift occurring in circulating strains. Advances in mucosal vaccinology and in the understanding of the protective anti-influenza immune mechanisms suggest that intranasal immunization is a promising strategy to fight against IAV. To date, human mucosal anti-influenza vaccines consist of live attenuated strains administered intranasally, which elicit higher local humoral and cellular immune responses than conventional parenteral vaccines. However, because of inconsistent protective efficacy and safety concerns regarding the use of live viral strains, new vaccine candidates are urgently needed. To prime and induce potent and long-lived protective immune responses, mucosal vaccine formulations need to ensure the immunoavailability and the immunostimulating capacity of the vaccine antigen(s) at the mucosal surfaces, while being minimally reactogenic/toxic. The purpose of this review is to compile innovative delivery/adjuvant systems tested for intranasal administration of inactivated influenza vaccines, including micro/nanosized particulate carriers such as lipid-based particles, virus-like particles and polymers associated or not with immunopotentiatory molecules including microorganism-derived toxins, Toll-like receptor ligands and cytokines. The capacity of these vaccines to trigger specific mucosal and systemic humoral and cellular responses against IAV and their (cross)-protective potential are considered.
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Affiliation(s)
- Cynthia Calzas
- VIM, UR892, Equipe Virus Influenza, INRA, University PARIS-SACLAY, Jouy-en-Josas, France
| | - Christophe Chevalier
- VIM, UR892, Equipe Virus Influenza, INRA, University PARIS-SACLAY, Jouy-en-Josas, France
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13
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Ogawa M, Senoo Y, Ikeda K, Takeuchi H, Okajima T. Structural Divergence in O-GlcNAc Glycans Displayed on Epidermal Growth Factor-like Repeats of Mammalian Notch1. Molecules 2018; 23:E1745. [PMID: 30018219 PMCID: PMC6099671 DOI: 10.3390/molecules23071745] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 07/12/2018] [Accepted: 07/14/2018] [Indexed: 01/19/2023] Open
Abstract
Extracellular O-GlcNAc is a novel class of modification catalyzed by epidermal growth factor-like (EGF)-domain specific O-GlcNAc transferase (EOGT). In mammals, EOGT is required for ligand-mediated Notch signaling for vascular development. Previous studies have revealed that O-GlcNAc in mammalian cultured cells is subject to subsequent glycosylation, which may impose additional layers of regulation. This study aimed to analyze the O-GlcNAc glycans of Drosophila EGF20 as model substrates and mouse Notch1 EGF repeats by mass-spectrometry. The analysis of Drosophila EGF20 expressed in HEK293T cells revealed that the majority of the proteins are modified with an elongated form of O-GlcNAc glycan comprising terminal galactose or sialic acid residues. In contrast, recombinant Notch1 EGF repeats isolated from HEK293T cells revealed structural divergence of O-GlcNAc glycans among the different EGF domains. Although the majority of Notch1 EGF2 and EGF20 domains contained the extended forms of the glycan, the O-GlcNAc in many other domains mostly existed as a monosaccharide irrespective of the exogenous EOGT expression. Our results raised a hypothesis that an array of O-GlcNAc monosaccharides may impact the structure and function of Notch receptors.
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Affiliation(s)
- Mitsutaka Ogawa
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan.
| | - Yuya Senoo
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan.
| | - Kazutaka Ikeda
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan.
- RIKEN, Center for Integrative Medical Sciences, 1-7-22 SuehirO-cho, Tsurumi, Yokohama 230-0045, Japan.
| | - Hideyuki Takeuchi
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan.
| | - Tetsuya Okajima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan.
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14
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Dong X, Liang J, Yang A, Wang C, Kong D, Lv F. In Vivo Imaging Tracking and Immune Responses to Nanovaccines Involving Combined Antigen Nanoparticles with a Programmed Delivery. ACS APPLIED MATERIALS & INTERFACES 2018; 10:21861-21875. [PMID: 29901978 DOI: 10.1021/acsami.8b04867] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Combined nanovaccine can generate robust and persistent antigen-specific immune responses. A combined nanovaccine was developed based on antigen-loaded genipin-cross-linked-polyethyleneimine-antigen nanoparticles and in vivo multispectral fluorescence imaging tracked the antigen delivery of combined nanovaccine. The inner layer antigen nanoparticles carried abundant antigens by self-cross-linking for persistent immune response, whereas the outer antigen on the surface of antigen nanoparticles provided the initial antigen exposure. The delivery of combined nanovaccine was tracked dynamically and objectively by the separation of inner genipin cross-linked antigen nanoparticle and the outer fluorescent antigen. The immune responses of the combined nanovaccine were evaluated including antigen-specific CD4+ and CD8+ T-cell responses, IgG antibody level, immunological memory, and CD8+ cytotoxic T lymphocyte responses. The results indicated that the inner and outer antigens of combined vaccine can be tracked in real time with a programmed delivery by the dual fluorescence imaging. The programmed delivery of the inner and outer antigens induced strong immune responses with a combination of a quick delivery and a persistent delivery. With adequate antigen exposure, the dendritic cells were effectively activated and matured, and following T cells were further activated for immune response. Compared with a single nanoparticle formulation, the combined nanovaccine exactly elicited a stronger antigen-specific immune response.
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Affiliation(s)
- Xia Dong
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering , Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin 300192 , P. R. China
| | - Jie Liang
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering , Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin 300192 , P. R. China
| | - Afeng Yang
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering , Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin 300192 , P. R. China
| | - Chun Wang
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering , Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin 300192 , P. R. China
- Department of Biomedical Engineering , University of Minnesota , Minneapolis , Minnesota 55455 , United States
| | - Deling Kong
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering , Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin 300192 , P. R. China
| | - Feng Lv
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering , Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin 300192 , P. R. China
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15
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Blakney AK, Yilmaz G, McKay PF, Becer CR, Shattock RJ. One Size Does Not Fit All: The Effect of Chain Length and Charge Density of Poly(ethylene imine) Based Copolymers on Delivery of pDNA, mRNA, and RepRNA Polyplexes. Biomacromolecules 2018; 19:2870-2879. [PMID: 29698602 DOI: 10.1021/acs.biomac.8b00429] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nucleic acid delivery systems are commonly translated between different modalities, such as DNA and RNA of varying length and structure, despite physical differences in these molecules that yield disparate delivery efficiency with the same system. Here, we synthesized a library of poly(2-ethyl-2-oxazoline)/poly(ethylene imine) copolymers with varying molar mass and charge densities in order to probe how pDNA, mRNA, and RepRNA polyplex characteristics affect transfection efficiency. The library was utilized in a full factorial design of experiment (DoE) screening, with outputs of luciferase expression, particle size, surface charge, and particle concentration. The optimal copolymer molar mass and charge density was found as 83 kDa/100%, 72 kDa/100%, and 45 kDa/80% for pDNA, RepRNA, and mRNA, respectively. While 10 of the synthesized copolymers enhanced the transfection efficiency of pDNA and mRNA, only 2 copolymers enhanced RepRNA transfection efficiency, indicating a narrow and more stringent design space for RepRNA. These findings suggest that there is not a "one size fits all" polymer for different nucleic acid species.
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Affiliation(s)
- Anna K Blakney
- Department of Medicine, Division of Infectious Diseases, Section of Virology , Imperial College London , Norfolk Place, London W21PG , U.K
| | - Gokhan Yilmaz
- Polymer Chemistry Laboratory, School of Engineering and Materials Science , Queen Mary University of London , London E1 4NS , U.K
| | - Paul F McKay
- Department of Medicine, Division of Infectious Diseases, Section of Virology , Imperial College London , Norfolk Place, London W21PG , U.K
| | - C Remzi Becer
- Polymer Chemistry Laboratory, School of Engineering and Materials Science , Queen Mary University of London , London E1 4NS , U.K
| | - Robin J Shattock
- Department of Medicine, Division of Infectious Diseases, Section of Virology , Imperial College London , Norfolk Place, London W21PG , U.K
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16
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Munk M, de Souza Salomão Zanette R, de Almeida Camargo LS, de Souza NLGD, de Almeida CG, Gern JC, de Sa Guimaraes A, Ladeira LO, de Oliveira LFC, de Mello Brandão H. Using carbon nanotubes to deliver genes to hard-to-transfect mammalian primary fibroblast cells. Biomed Phys Eng Express 2017. [DOI: 10.1088/2057-1976/aa7927] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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17
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Blom RAM, Amacker M, van Dijk RM, Moser C, Stumbles PA, Blank F, von Garnier C. Pulmonary Delivery of Virosome-Bound Antigen Enhances Antigen-Specific CD4 + T Cell Proliferation Compared to Liposome-Bound or Soluble Antigen. Front Immunol 2017; 8:359. [PMID: 28439267 PMCID: PMC5383731 DOI: 10.3389/fimmu.2017.00359] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 03/14/2017] [Indexed: 12/18/2022] Open
Abstract
Pulmonary administration of biomimetic nanoparticles loaded with antigen may represent an effective strategy to directly modulate adaptive immune responses in the respiratory tract. Depending on the design, virosomes may not only serve as biomimetic antigen carriers but are also endowed with intrinsic immune-stimulatory properties. We designed fluorescently labeled influenza-derived virosomes and liposome controls coupled to the model antigen ovalbumin to investigate uptake, phenotype changes, and antigen processing by antigen-presenting cells exposed to such particles in different respiratory tract compartments. Both virosomes and liposomes were captured by pulmonary macrophages and dendritic cells alike and induced activation in particle-bearing cells by upregulation of costimulatory markers such as CD40, CD80, CD86, PD-L1, PD-L2, and ICOS-L. Though antigen processing and accumulation of both coupled and soluble antigen was similar between virosomes and liposomes, only ovalbumin-coupled virosomes generated a strong antigen-specific CD4+ T cell proliferation. Pulmonary administrated antigen-coupled virosomes therefore effectively induced adaptive immune responses and may be utilized in novel preventive or therapeutic approaches in the respiratory tract.
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Affiliation(s)
- Rebecca A M Blom
- Department of Pulmonary Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.,Department of Clinical Research, University of Bern, Bern, Switzerland.,Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | | | | | - Christian Moser
- Swiss Federal Institute of Intellectual Property, Bern, Switzerland
| | - Philip A Stumbles
- School of Veterinary and Life Sciences, Medical and Molecular Sciences, Murdoch University, Perth, WA, Australia.,Telethon Kids Institute, Perth, WA, Australia
| | - Fabian Blank
- Department of Pulmonary Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.,Department of Clinical Research, University of Bern, Bern, Switzerland
| | - Christophe von Garnier
- Department of Pulmonary Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.,Department of Clinical Research, University of Bern, Bern, Switzerland
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18
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Blom RAM, Amacker M, Moser C, van Dijk RM, Bonetti R, Seydoux E, Hall SRR, von Garnier C, Blank F. Virosome-bound antigen enhances DC-dependent specific CD4 + T cell stimulation, inducing a Th1 and Treg profile in vitro. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:1725-1737. [PMID: 28214610 DOI: 10.1016/j.nano.2017.02.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 11/22/2016] [Accepted: 02/05/2017] [Indexed: 11/20/2022]
Abstract
There is considerable interest to develop antigen-carriers for immune-modulatory clinical applications, but insufficient information is available on their effects on antigen-presenting cells. We employed virosomes coupled to ovalbumin (OVA) to study their interaction with murine bone marrow-derived dendritic cells (BMDCs) and modulation of downstream T cell responses. BMDCs were treated in vitro with virosomes or liposomes prior to determining BMDC phenotype, viability, and intracellular trafficking. Antigen-specific CD4+ T cell activation was measured by co-culture of BMDCs with DO11.10 CD4+ T cells. Compared to liposomes, virosomes were rapidly taken up. Neither nanocarrier type affected BMDC viability, nor did a moderate degree of activation differ for markers such as CD40, CD80, CD86. Virosome uptake occurred via clathrin-mediated endocytosis and phagocytosis, with co-localization in late endosomes. Only BMDCs treated with OVA-coupled virosomes induced enhanced OVA-specific CD4+ T cell proliferation. Antigen-coupled virosomes are endowed with an intrinsic ability to modulate DC-dependent adaptive immune responses.
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Affiliation(s)
- Rebecca A M Blom
- Department of Pulmonary Medicine, Bern University Hospital, University of Bern, Bern, Switzerland; Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | | | - Christian Moser
- Swiss Federal Institute of Intellectual Property, Bern, Switzerland
| | - R Maarten van Dijk
- Institute of Anatomy, University of Zürich, Switzerland; Institute of Human Movement Sciences and Sport, Department of Health Sciences and Technology, ETH Zürich, Zürich, Switzerland
| | - Raffaela Bonetti
- Department of Pulmonary Medicine, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Emilie Seydoux
- Department of Pulmonary Medicine, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Sean R R Hall
- Division of Thoracic Surgery, University Hospital of Bern, Bern, Switzerland; Department of Clinical Research, University of Bern, Bern, Switzerland
| | - Christophe von Garnier
- Department of Pulmonary Medicine, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Fabian Blank
- Department of Pulmonary Medicine, Bern University Hospital, University of Bern, Bern, Switzerland.
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19
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Affiliation(s)
- Mingming Zhang
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, 236 Baidi Road, Nankai District, Tianjin 300192, China
| | - Yanhang Hong
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, 236 Baidi Road, Nankai District, Tianjin 300192, China
| | - Wenjuan Chen
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, 236 Baidi Road, Nankai District, Tianjin 300192, China
| | - Chun Wang
- Department
of Biomedical Engineering, University of Minnesota, 7-105 Hasselmo
Hall, 312 Church Street S. E., Minneapolis, Minnesota 55455, United States
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20
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Seydoux E, Rodriguez-Lorenzo L, Blom RAM, Stumbles PA, Petri-Fink A, Rothen-Rutishauser BM, Blank F, von Garnier C. Pulmonary delivery of cationic gold nanoparticles boost antigen-specific CD4 + T Cell Proliferation. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:1815-1826. [PMID: 27013126 DOI: 10.1016/j.nano.2016.02.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 02/15/2016] [Accepted: 02/16/2016] [Indexed: 12/12/2022]
Abstract
To address how surface charge affects the fate of potential nanocarriers in the lung, gold nanoparticles (AuNPs) coated with polyvinyl alcohol containing either positively (NH2) or negatively (COOH) charged functional groups were intra-nasally instilled in mice, and their uptake by antigen presenting cell populations (APC) in broncho-alveolar lavage (BAL) fluid, trachea, and lung parenchyma, as well as trafficking to the lung draining lymph nodes (LDLNs) was assessed by flow cytometry. Furthermore, CD4+ T cell proliferation in LDLNs was investigated following instillation. All APC subpopulations preferentially captured positively-charged AuNPs compared to their negatively-charged counterparts. Uptake of AuNPs up-regulated expression of co-stimulatory molecules on all APC populations. Furthermore, positively-charged AuNPs induced enhanced OVA-specific CD4+ T cell stimulation in LDLNs compared to negatively-charged AuNPs, or polymer alone. Our findings demonstrate surface charge as a key parameter determining particle uptake by APC, and down-stream immune responses depend on the presence of particle core-bound polymer.
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Affiliation(s)
- Emilie Seydoux
- Respiratory Medicine, Department of Clinical Research, Bern University Hospital, University of Bern, Bern, Switzerland; Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | | | - Rebecca A M Blom
- Respiratory Medicine, Department of Clinical Research, Bern University Hospital, University of Bern, Bern, Switzerland; Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Philip A Stumbles
- School of Veterinary and Life Sciences, Molecular and Biomedical Sciences, Murdoch University, Perth, Australia; Telethon Kids Institute, Perth, Australia
| | - Alke Petri-Fink
- Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland
| | | | - Fabian Blank
- Respiratory Medicine, Department of Clinical Research, Bern University Hospital, University of Bern, Bern, Switzerland.
| | - Christophe von Garnier
- Respiratory Medicine, Department of Clinical Research, Bern University Hospital, University of Bern, Bern, Switzerland
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21
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Abstract
In the two decades since their initial discovery, DNA vaccines technologies have come a long way. Unfortunately, when applied to human subjects inadequate immunogenicity is still the biggest challenge for practical DNA vaccine use. Many different strategies have been tested in preclinical models to address this problem, including novel plasmid vectors and codon optimization to enhance antigen expression, new gene transfection systems or electroporation to increase delivery efficiency, protein or live virus vector boosting regimens to maximise immune stimulation, and formulation of DNA vaccines with traditional or molecular adjuvants. Better understanding of the mechanisms of action of DNA vaccines has also enabled better use of the intrinsic host response to DNA to improve vaccine immunogenicity. This review summarizes recent advances in DNA vaccine technologies and related intracellular events and how these might impact on future directions of DNA vaccine development.
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Affiliation(s)
- Lei Li
- a Vaxine Pty Ltd, Bedford Park , Adelaide , Australia.,b Department of Diabetes and Endocrinology , Flinders University, Flinders Medical Centre , Adelaide , SA , Australia
| | - Nikolai Petrovsky
- a Vaxine Pty Ltd, Bedford Park , Adelaide , Australia.,b Department of Diabetes and Endocrinology , Flinders University, Flinders Medical Centre , Adelaide , SA , Australia
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22
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Foldvari M, Chen DW, Nafissi N, Calderon D, Narsineni L, Rafiee A. Non-viral gene therapy: Gains and challenges of non-invasive administration methods. J Control Release 2015; 240:165-190. [PMID: 26686079 DOI: 10.1016/j.jconrel.2015.12.012] [Citation(s) in RCA: 155] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 11/26/2015] [Accepted: 12/09/2015] [Indexed: 12/20/2022]
Abstract
Gene therapy is becoming an influential part of the rapidly increasing armamentarium of biopharmaceuticals for improving health and combating diseases. Currently, three gene therapy treatments are approved by regulatory agencies. While these treatments utilize viral vectors, non-viral alternative technologies are also being developed to improve the safety profile and manufacturability of gene carrier formulations. We present an overview of gene-based therapies focusing on non-viral gene delivery systems and the genetic therapeutic tools that will further revolutionize medical treatment with primary focus on the range and development of non-invasive delivery systems for dermal, transdermal, ocular and pulmonary administrations and perspectives on other administration methods such as intranasal, oral, buccal, vaginal, rectal and otic delivery.
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Affiliation(s)
- Marianna Foldvari
- School of Pharmacy, Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Center for Bioengineering and Biotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
| | - Ding Wen Chen
- School of Pharmacy, Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Center for Bioengineering and Biotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
| | - Nafiseh Nafissi
- School of Pharmacy, Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Center for Bioengineering and Biotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
| | - Daniella Calderon
- School of Pharmacy, Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Center for Bioengineering and Biotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
| | - Lokesh Narsineni
- School of Pharmacy, Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Center for Bioengineering and Biotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
| | - Amirreza Rafiee
- School of Pharmacy, Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Center for Bioengineering and Biotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
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23
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Hu K, Malla T, Zhai Y, Dong L, Tang R. Topical Administration Is a Promising Inoculating Route versus Intramuscular Inoculation for the Nanoparticle-Carried DNA Vaccine to Prevent Corneal Infections. Ophthalmic Res 2015; 55:99-110. [DOI: 10.1159/000441898] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 10/20/2015] [Indexed: 11/19/2022]
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24
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Marć MA, Domínguez-Álvarez E, Gamazo C. Nucleic acid vaccination strategies against infectious diseases. Expert Opin Drug Deliv 2015; 12:1851-65. [PMID: 26365499 DOI: 10.1517/17425247.2015.1077559] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
INTRODUCTION Gene vaccines are an interesting and emerging alternative for the prevention of infectious diseases, as well as in the treatment of other pathologies including cancer, allergies, autoimmune diseases, or even drug dependencies. When applied to the target organism, these vaccines induce the expression of encoded antigens and elicit the corresponding immune response, with the potential ability of being able to induce antibody-, helper T cell-, and cytotoxic T cell-mediated immune responses. AREAS COVERED Special attention is paid to the variety of adjuvants that may be co-administered to enhance and/or to modulate immune responses, and to the methods of delivery. Finally, this article reviews the efficacy data of gene vaccines against infectious diseases released from current clinical trials. EXPERT OPINION Taken together, this approach will have a major impact on future strategies for the prevention of infectious diseases. Better-designed nucleic acid constructs, novel delivery technologies, as well as the clarification of the mechanisms for antigen presentation will improve the potential applications of this vaccination strategy against microbial pathogens.
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Affiliation(s)
- Małgorzata Anna Marć
- a 1 Jagiellonian University Medical College, Faculty of Pharmacy, Department of Pharmaceutical Biochemistry , Medyczna 9, PL 30-688 Cracow, Poland
| | - Enrique Domínguez-Álvarez
- b 2 Jagiellonian University Medical College, Faculty of Pharmacy, Department of Technology and Biotechnology of Drugs , Medyczna 9, PL 30-688 Cracow, Poland
| | - Carlos Gamazo
- c 3 University of Navarra, Institute of Tropical Health (ISTUN), Department of Microbiology and Parasitology , Irunlarrea 1, 31008 Pamplona, Spain
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25
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Jia Y, Krishnan L, Omri A. Nasal and pulmonary vaccine delivery using particulate carriers. Expert Opin Drug Deliv 2015; 12:993-1008. [PMID: 25952104 DOI: 10.1517/17425247.2015.1044435] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Many human pathogens cause respiratory illness by colonizing and invading the respiratory mucosal surfaces. Preventing infection at local sites via mucosally active vaccines is a promising and rational approach for vaccine development. However, stimulating mucosal immunity is often challenging. Particulate adjuvants that can specifically target mucosal immune cells offer a promising opportunity to stimulate local immunity at the nasal and/or pulmonary mucosal surfaces. AREAS COVERED This review analyzes the common causes of respiratory infections, the challenges in the induction of mucosal and systemic responses and current pulmonary and nasal mucosal vaccination strategies. The ability of various particulate adjuvant formulations, including lipid-based particles, polymers and other particulate systems, to be effectively utilized for mucosal vaccine delivery is discussed. EXPERT OPINION Induction of antibody and cell-mediated mucosal immunity that can effectively combat respiratory pathogens remains a challenge. Particulate delivery systems can be developed to target mucosal immune cells and effectively present antigen to evoke a rapid and long-term local immunity in the respiratory mucosa. In particular, particulate delivery systems offer the versatility of being formulated with multiple adjuvants and antigenic cargo, and can be tailored to effectively prime immune responses across the mucosal barrier. The opportunity for rational design of novel subunit particulate vaccines is emerging.
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Affiliation(s)
- Yimei Jia
- National Research Council of Canada-Human Health Therapeutics , Ottawa, Ontario K1A 0R6 , Canada +1 613 991 3210 ;
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26
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Zeng Q, Jiang H, Wang T, Zhang Z, Gong T, Sun X. Cationic micelle delivery of Trp2 peptide for efficient lymphatic draining and enhanced cytotoxic T-lymphocyte responses. J Control Release 2015; 200:1-12. [DOI: 10.1016/j.jconrel.2014.12.024] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 12/03/2014] [Accepted: 12/17/2014] [Indexed: 12/11/2022]
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27
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Kim MG, Park JY, Shon Y, Kim G, Shim G, Oh YK. Nanotechnology and vaccine development. Asian J Pharm Sci 2014. [DOI: 10.1016/j.ajps.2014.06.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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28
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He P, Takeshima SN, Tada S, Akaike T, Ito Y, Aida Y. pH-sensitive carbonate apatite nanoparticles as DNA vaccine carriers enhance humoral and cellular immunity. Vaccine 2014; 32:6199-205. [PMID: 25261380 DOI: 10.1016/j.vaccine.2014.09.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 09/09/2014] [Accepted: 09/13/2014] [Indexed: 10/24/2022]
Abstract
To demonstrate the potential of pH-sensitive carbonate apatite (CO₃Ap) nanoparticles as DNA vaccine carriers to enhance vaccination efficacy, we examined the humoral and cellular immune responses of C57BL/6 mice immunized with the plasmid expression vector pCI-neo encoding the full-length soluble ovalbumin (OVA) (pCI-neo-sOVA), pCI-neo-sOVA/CO₃Ap complexes, or pCI-neo/CO₃Ap complexes as a control. Mice immunized with a low dose of pCI-neo-sOVA-loaded CO₃Ap (10 μg) produced ex vivo splenocyte proliferation after stimulation with CD8 T-cell but not CD4 T-cell epitopes and a delayed-type-hypersensitivity reaction more efficiently than mice in the other groups. Furthermore, mice receiving this immunization generated the same levels of OVA-specific antibodies and interferon (IFN)-γ secretion after CD8 T-cell and CD4 T-cell epitope challenges as those in mice treated with 100 μg of free pCI-neo-sOVA, whereas mice injected with a high dose of pCI-neo-sOVA-loaded CO₃Ap (100 μg) or with control plasmids produced negligible levels of OVA-specific antibodies or IFN-γ. Therefore, our results showed that 10 μg of pCI-neo-sOVA delivered by CO₃Ap strongly elicited humoral and cellular immune responses. This study is the first to demonstrate the promising potential of CO₃Ap nanoparticles for DNA vaccine delivery.
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Affiliation(s)
- Pan He
- Viral Infectious Diseases Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Nano Medical Engineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | | | - Seiichi Tada
- Nano Medical Engineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Toshihiro Akaike
- Department of Biomolecular Engineering, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, 4252 Nagatsuka-cho, Midoriku, Yokohama 226-8501, Japan
| | - Yoshihiro Ito
- Nano Medical Engineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yoko Aida
- Viral Infectious Diseases Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
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Xu Y, Yuen PW, Lam JKW. Intranasal DNA Vaccine for Protection against Respiratory Infectious Diseases: The Delivery Perspectives. Pharmaceutics 2014; 6:378-415. [PMID: 25014738 PMCID: PMC4190526 DOI: 10.3390/pharmaceutics6030378] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 06/20/2014] [Accepted: 06/24/2014] [Indexed: 11/16/2022] Open
Abstract
Intranasal delivery of DNA vaccines has become a popular research area recently. It offers some distinguished advantages over parenteral and other routes of vaccine administration. Nasal mucosa as site of vaccine administration can stimulate respiratory mucosal immunity by interacting with the nasopharyngeal-associated lymphoid tissues (NALT). Different kinds of DNA vaccines are investigated to provide protection against respiratory infectious diseases including tuberculosis, coronavirus, influenza and respiratory syncytial virus (RSV) etc. DNA vaccines have several attractive development potential, such as producing cross-protection towards different virus subtypes, enabling the possibility of mass manufacture in a relatively short time and a better safety profile. The biggest obstacle to DNA vaccines is low immunogenicity. One of the approaches to enhance the efficacy of DNA vaccine is to improve DNA delivery efficiency. This review provides insight on the development of intranasal DNA vaccine for respiratory infections, with special attention paid to the strategies to improve the delivery of DNA vaccines using non-viral delivery agents.
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Affiliation(s)
- Yingying Xu
- Department of Pharmacology & Pharmacy, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, 21 Sassoon Road, Hong Kong, China.
| | - Pak-Wai Yuen
- Department of Pharmacology & Pharmacy, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, 21 Sassoon Road, Hong Kong, China.
| | - Jenny Ka-Wing Lam
- Department of Pharmacology & Pharmacy, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, 21 Sassoon Road, Hong Kong, China.
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30
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Walters AA, Kinnear E, Shattock RJ, McDonald JU, Caproni LJ, Porter N, Tregoning JS. Comparative analysis of enzymatically produced novel linear DNA constructs with plasmids for use as DNA vaccines. Gene Ther 2014; 21:645-52. [PMID: 24830436 PMCID: PMC4082409 DOI: 10.1038/gt.2014.37] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 02/26/2014] [Accepted: 03/18/2014] [Indexed: 11/27/2022]
Abstract
The use of DNA to deliver vaccine antigens offers many advantages, including ease of manufacture and cost. However, most DNA vaccines are plasmids and must be grown in bacterial culture, necessitating elements which are either unnecessary for effective gene delivery (e.g. bacterial origins of replication) or undesirable (e.g. antibiotic resistance genes). Removing these elements may improve the safety profile of DNA for the delivery of vaccines. Here we describe a novel, double-stranded, linear DNA construct produced by an enzymatic process that solely encodes an antigen expression cassette, comprising antigen, promoter, polyA tail and telomeric ends. We compared these constructs (called ‘Doggybones’ because of their shape) with conventional plasmid DNA. Using luciferase-expressing constructs, we demonstrated that expression levels were equivalent between Doggybones and plasmids both in vitro and in vivo. When mice were immunized with DNA constructs expressing the HIV envelope protein gp140, equivalent humoral and cellular responses were induced. Immunizations with either construct type expressing haemagluttinin were protective against H1N1 influenza challenge. This is the first example of an effective DNA vaccine which can be produced on a large scale by enzymatic processes.
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Affiliation(s)
- A A Walters
- Mucosal Infection & Immunity Group, Section of Infectious Diseases, Department of Medicine, Imperial College London, St Mary's Campus, London, UK
| | - E Kinnear
- Mucosal Infection & Immunity Group, Section of Infectious Diseases, Department of Medicine, Imperial College London, St Mary's Campus, London, UK
| | - R J Shattock
- Mucosal Infection & Immunity Group, Section of Infectious Diseases, Department of Medicine, Imperial College London, St Mary's Campus, London, UK
| | - J U McDonald
- Mucosal Infection & Immunity Group, Section of Infectious Diseases, Department of Medicine, Imperial College London, St Mary's Campus, London, UK
| | - L J Caproni
- Touchlight Genetics Ltd., Leatherhead Food Research Institute, Leatherhead, Surrey, UK
| | - N Porter
- Touchlight Genetics Ltd., Leatherhead Food Research Institute, Leatherhead, Surrey, UK
| | - J S Tregoning
- Mucosal Infection & Immunity Group, Section of Infectious Diseases, Department of Medicine, Imperial College London, St Mary's Campus, London, UK
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31
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Enhanced immunogenicity of an HIV-1 DNA vaccine delivered with electroporation via combined intramuscular and intradermal routes. J Virol 2014; 88:6959-69. [PMID: 24719412 DOI: 10.1128/jvi.00183-14] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
UNLABELLED It is accepted that an effective prophylactic HIV-1 vaccine is likely to have the greatest impact on viral transmission rates. As previous reports have implicated DNA-priming, protein boost regimens to be efficient activators of humoral responses, we sought to optimize this regimen to further augment vaccine immunogenicity. Here we evaluated single versus concurrent intradermal (i.d.) and intramuscular (i.m.) vaccinations as a DNA-priming strategy for their abilities to elicit humoral and cellular responses against a model HIV-1 vaccine antigen, CN54-gp140. To further augment vaccine-elicited T and B cell responses, we enhanced cellular transfection with electroporation and then boosted the DNA-primed responses with homologous protein delivered subcutaneously (s.c.), intranasally (i.n.), i.m., or transcutaneously (t.c.). In mice, the concurrent priming regimen resulted in significantly elevated gamma interferon T cell responses and high-avidity antigen-specific IgG B cell responses, a hallmark of B cell maturation. Protein boosting of the concurrent DNA strategy further enhanced IgG concentrations but had little impact on T cell reactivity. Interestingly protein boosting by the subcutaneous route increased antibody avidity to a greater extent than protein boosting by either the i.m., i.n., or t.c. route, suggesting that this route may be preferential for driving B cell maturation. Using an alternative and larger animal model, the rabbit, we found the concurrent DNA-priming strategy followed by s.c. protein boosting to again be capable of eliciting high-avidity humoral responses and to also be able to neutralize HIV-1 pseudoviruses from diverse clades (clades A, B, and C). Taken together, we show that concurrent multiple-route DNA vaccinations induce strong cellular immunity, in addition to potent and high-avidity humoral immune responses. IMPORTANCE The route of vaccination has profound effects on prevailing immune responses. Due to the insufficient immunogenicity and protection of current DNA delivery strategies, we evaluated concurrent DNA delivery via simultaneous administration of plasmid DNA by the i.m. and i.d. routes. The rationale behind this study was to provide clear evidence of the utility of concurrent vaccinations for an upcoming human clinical trial. Furthermore, this work will guide future preclinical studies by evaluating the use of model antigens and plasmids for prime-boost strategies. This paper will be of interest not only to virologists and vaccinologists working in the HIV field but also to researchers working in other viral vaccine settings and, critically, to the wider field of vaccine delivery.
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Cherif MS, Shuaibu MN, Kodama Y, Kurosaki T, Helegbe GK, Kikuchi M, Ichinose A, Yanagi T, Sasaki H, Yui K, Tien NH, Karbwang J, Hirayama K. Nanoparticle formulation enhanced protective immunity provoked by PYGPI8p-transamidase related protein (PyTAM) DNA vaccine in Plasmodium yoelii malaria model. Vaccine 2014; 32:1998-2006. [PMID: 24440206 DOI: 10.1016/j.vaccine.2014.01.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 11/23/2013] [Accepted: 01/02/2014] [Indexed: 11/15/2022]
Abstract
We have previously reported the new formulation of polyethylimine (PEI) with gamma polyglutamic acid (γ-PGA) nanoparticle (NP) to have provided Plasmodium yoelii merozoite surface protein-1 (PyMSP-1) plasmid DNA vaccine with enhanced protective cellular and humoral immunity in the lethal mouse malaria model. PyGPI8p-transamidase-related protein (PyTAM) was selected as a possible candidate vaccine antigen by using DNA vaccination screening from 29 GPI anchor and signal sequence motif positive genes picked up using web-based bioinformatics tools; though the observed protection was not complete. Here, we observed augmented protective effect of PyTAM DNA vaccine by using PEI and γ-PGA complex as delivery system. NP-coated PyTAM plasmid DNA immunized mice showed a significant survival rate from lethal P. yoelii challenge infection compared with naked PyTAM plasmid or with NP-coated empty plasmid DNA group. Antigen-specific IgG1 and IgG2b subclass antibody levels, proportion of CD4 and CD8T cells producing IFN-γ in the splenocytes and IL-4, IFN-γ, IL-12 and TNF-α levels in the sera and in the supernatants from ex vivo splenocytes culture were all enhanced by the NP-coated PyTAM DNA vaccine. These data indicates that NP augments PyTAM protective immune response, and this enhancement was associated with increased DC activation and concomitant IL-12 production.
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Affiliation(s)
- Mahamoud Sama Cherif
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan; Global COE Program, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan; Institut National de Santé Publique, Université de Conakry, Guinea
| | - Mohammed Nasir Shuaibu
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan; Global COE Program, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan
| | | | | | - Gideon Kofi Helegbe
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan
| | - Mihoko Kikuchi
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan
| | - Akitoyo Ichinose
- Electron Microscopy Central Laboratory, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan
| | - Tetsuo Yanagi
- Animal Research Center for Tropical Medicine, Nagasaki, Japan
| | - Hitoshi Sasaki
- Department of Hospital Pharmacy, Nagasaki University, Japan; Global COE Program, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan
| | - Katsuyuki Yui
- Division of Immunology, Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, Japan
| | - Nguyen Huy Tien
- Department of Product Development, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Juntra Karbwang
- Department of Product Development, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Kenji Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan; Global COE Program, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan.
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