1
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Chen XA, Chuang CC, Chen CC, Lee CY, Chin CY, Young JJ, Bai MY, Chuang CC. Polyelectrolyte-coated liposomes microfluidically assembled in one-step for enhancing cell endocytosis and in-vivo immune responses. Colloids Surf B Biointerfaces 2024; 241:114030. [PMID: 38901267 DOI: 10.1016/j.colsurfb.2024.114030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 05/14/2024] [Accepted: 06/09/2024] [Indexed: 06/22/2024]
Abstract
To enhance the cellular uptake of liposomes, we prepared conventional liposomes with targeting molecules and surface-charged liposomes and evaluated their potential as nano-carriers and vaccine adjuvants by comparing their endocytosis efficiencies using immune cells. Surface-charged liposomes were synthesized via a one-step microfluidic method, which provided a novel, simple, fast, and highly reproducible method for preparing liposomes. Flow cytometry revealed that cationic polyelectrolyte-coated liposomes exhibited higher endocytosis efficiencies (of up to a factor of 100) in A774A.1 cells and JAWs II cells compared with uncoated liposomes or those coated with anionic polyelectrolytes. Positively charged liposomes exhibited some cytotoxicity at quaternary-chitosan coating concentrations higher than 6 mg/mL; however, significantly lower cytotoxicities (by a factor of almost ten) were obtained by protein mixing. Furthermore, BALB/c mice vaccinated with a mixture of Anthrax vaccine adsorbed (AVA) and quaternary chitosan-coated liposomes showed faster and stronger anti-PA IgG inductions compared to those vaccinated with AVA alone, with titers positively correlating with the amount of cationic liposome used. This finding clearly reveals that quaternary chitosan-coated liposomes act as both nano-carriers and vaccine adjuvants that significantly enhance in-vivo immune responses to vaccines with low immunogenicities.
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Affiliation(s)
- Xin-An Chen
- Biomedical Engineering Program, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei City 10607, Taiwan, ROC
| | - Chuan-Chang Chuang
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC; Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Taipei City 11490, Taiwan, ROC
| | - Cheng-Cheung Chen
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC; Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei City 11490, Taiwan, ROC
| | - Chia-Ying Lee
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Chia-Ying Chin
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Jenn-Jong Young
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC.
| | - Meng-Yi Bai
- Biomedical Engineering Program, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei City 10607, Taiwan, ROC; Adjunct Appointment to the Department of Biomedical Engineering, National Defense Medical Center, Taipei City 11490, Taiwan, ROC.
| | - Chuan-Chung Chuang
- School of Dentistry and Graduate Institute of Dental Science, National Defense Medical Center, Taipei City 11490, Taiwan, ROC; Department of dentistry, Tri-Service General Hospital, Taipei City 11490, Taiwan, ROC.
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2
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Zhang D, Zhao H, Li P, Wu X, Liang Y. Research Progress on Liposome Pulmonary Delivery of Mycobacterium tuberculosis Nucleic Acid Vaccine and Its Mechanism of Action. J Aerosol Med Pulm Drug Deliv 2024. [PMID: 38669118 DOI: 10.1089/jamp.2023.0025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024] Open
Abstract
Traditional vaccines have played an important role in the prevention and treatment of infectious diseases, but they still have problems such as low immunogenicity, poor stability, and difficulty in inducing lasting immune responses. In recent years, the nucleic acid vaccine has emerged as a relatively cheap and safe new vaccine. Compared with traditional vaccines, nucleic acid vaccine has some unique advantages, such as easy production and storage, scalability, and consistency between batches. However, the direct administration of naked nucleic acid vaccine is not ideal, and safer and more effective vaccine delivery systems are needed. With the rapid development of nanocarrier technology, the combination of gene therapy and nanodelivery systems has broadened the therapeutic application of molecular biology and the medical application of biological nanomaterials. Nanoparticles can be used as potential drug-delivery vehicles for the treatment of hereditary and infectious diseases. In addition, due to the advantages of lung immunity, such as rapid onset of action, good efficacy, and reduced adverse reactions, pulmonary delivery of nucleic acid vaccine has become a hot spot in the field of research. In recent years, lipid nanocarriers have become safe, efficient, and ideal materials for vaccine delivery due to their unique physical and chemical properties, which can effectively reduce the toxic side effects of drugs and achieve the effect of slow release and controlled release, and there have been a large number of studies using lipid nanocarriers to efficiently deliver target components into the body. Based on the delivery of tuberculosis (TB) nucleic acid vaccine by lipid carrier, this article systematically reviews the advantages and mechanism of liposomes as a nucleic acid vaccine delivery carrier, so as to lay a solid foundation for the faster and more effective development of new anti-TB vaccine delivery systems in the future.
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Affiliation(s)
- Danyang Zhang
- Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, The Eighth Medical Center of PLA General Hospital, Beijing, China
- Postgraduate Department of Heibei North University, Zhangjiakou, China
| | - Haimei Zhao
- Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, The Eighth Medical Center of PLA General Hospital, Beijing, China
- Postgraduate Department of Heibei North University, Zhangjiakou, China
| | - Ping Li
- Postgraduate Department of Heibei North University, Zhangjiakou, China
| | - Xueqiong Wu
- Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, The Eighth Medical Center of PLA General Hospital, Beijing, China
| | - Yan Liang
- Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, The Eighth Medical Center of PLA General Hospital, Beijing, China
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3
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Chang YC, Yang CF, Chen YF, Yang CC, Chou YL, Chou HW, Chang TY, Chao TL, Hsu SC, Ieong SM, Tsai YM, Liu PC, Chin YF, Fang JT, Kao HC, Lu HY, Chang JY, Weng RS, Tu QW, Chang FY, Huang KY, Lee TY, Chang SY, Yang PC. A siRNA targets and inhibits a broad range of SARS-CoV-2 infections including Delta variant. EMBO Mol Med 2022; 14:e15298. [PMID: 35138028 PMCID: PMC8988202 DOI: 10.15252/emmm.202115298] [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: 10/18/2021] [Revised: 02/01/2022] [Accepted: 02/04/2022] [Indexed: 11/22/2022] Open
Abstract
The emergence of severe acute respiratory syndrome coronavirus‐2 (SARS‐CoV‐2) variants has altered the trajectory of the COVID‐19 pandemic and raised some uncertainty on the long‐term efficiency of vaccine strategy. The development of new therapeutics against a wide range of SARS‐CoV‐2 variants is imperative. We, here, have designed an inhalable siRNA, C6G25S, which covers 99.8% of current SARS‐CoV‐2 variants and is capable of inhibiting dominant strains, including Alpha, Delta, Gamma, and Epsilon, at picomolar ranges of IC50in vitro. Moreover, C6G25S could completely inhibit the production of infectious virions in lungs by prophylactic treatment, and decrease 96.2% of virions by cotreatment in K18‐hACE2‐transgenic mice, accompanied by a significant prevention of virus‐associated extensive pulmonary alveolar damage, vascular thrombi, and immune cell infiltrations. Our data suggest that C6G25S provides an alternative and effective approach to combating the COVID‐19 pandemic.
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Affiliation(s)
| | - Chi-Fan Yang
- Microbio (Shanghai) Biotech Company, Shanghai, China
| | - Yi-Fen Chen
- Oneness Biotech Company Limited, Taipei, Taiwan
| | | | - Yuan-Lin Chou
- Microbio (Shanghai) Biotech Company, Shanghai, China
| | | | - Tein-Yao Chang
- Institute of Preventive Medicine, National Defense Medical Center, Taiwan
| | - Tai-Ling Chao
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Shu-Chen Hsu
- Institute of Preventive Medicine, National Defense Medical Center, Taiwan
| | - Si-Man Ieong
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Ya-Min Tsai
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Ping-Cheng Liu
- Institute of Preventive Medicine, National Defense Medical Center, Taiwan
| | - Yuan-Fan Chin
- Institute of Preventive Medicine, National Defense Medical Center, Taiwan
| | - Jun-Tung Fang
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Han-Chieh Kao
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hsuan-Ying Lu
- Institute of Preventive Medicine, National Defense Medical Center, Taiwan
| | - Jia-Yu Chang
- Institute of Preventive Medicine, National Defense Medical Center, Taiwan
| | | | - Qian-Wen Tu
- Oneness Biotech Company Limited, Taipei, Taiwan
| | | | - Kuo-Yen Huang
- Institute of Microbiology and Immunology, National Defense Medical Center, Taiwan
| | | | - Sui-Yuan Chang
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan.,Department of Laboratory Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Pan-Chyr Yang
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.,Genomics Research Center, Academia Sinica, Taipei, Taiwan.,Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
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4
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Cheong Y, Kim M, Ahn J, Oh H, Lim J, Chae W, Yang SW, Kim MS, Yu JE, Byun S, Jang YH, Seong BL. Epigallocatechin-3-Gallate as a Novel Vaccine Adjuvant. Front Immunol 2021; 12:769088. [PMID: 34868027 PMCID: PMC8632720 DOI: 10.3389/fimmu.2021.769088] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 10/28/2021] [Indexed: 12/22/2022] Open
Abstract
Vaccine adjuvants from natural resources have been utilized for enhancing vaccine efficacy against infectious diseases. This study examined the potential use of catechins, polyphenolic materials derived from green tea, as adjuvants for subunit and inactivated vaccines. Previously, catechins have been documented to have irreversible virucidal function, with the possible applicability in the inactivated viral vaccine platform. In a mouse model, the coadministration of epigallocatechin-3-gallate (EGCG) with influenza hemagglutinin (HA) antigens induced high levels of neutralizing antibodies, comparable to that induced by alum, providing complete protection against the lethal challenge. Adjuvant effects were observed for all types of HA antigens, including recombinant full-length HA and HA1 globular domain, and egg-derived inactivated split influenza vaccines. The combination of alum and EGCG further increased neutralizing (NT) antibody titers with the corresponding hemagglutination inhibition (HI) titers, demonstrating a dose-sparing effect. Remarkably, EGCG induced immunoglobulin isotype switching from IgG1 to IgG2a (approximately >64-700 fold increase), exerting a more balanced TH1/TH2 response compared to alum. The upregulation of IgG2a correlated with significant enhancement of antibody-dependent cellular cytotoxicity (ADCC) function (approximately 14 fold increase), providing a potent effector-mediated protection in addition to NT and HI. As the first report on a novel class of vaccine adjuvants with built-in virucidal activities, the results of this study will help improve the efficacy and safety of vaccines for pandemic preparedness.
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MESH Headings
- Adjuvants, Immunologic/administration & dosage
- Adjuvants, Vaccine/administration & dosage
- Alum Compounds/administration & dosage
- Animals
- Antibodies, Neutralizing/blood
- Antibodies, Neutralizing/immunology
- Antibodies, Viral/blood
- Antibodies, Viral/immunology
- Catechin/administration & dosage
- Catechin/analogs & derivatives
- Catechin/immunology
- Dogs
- Drug Synergism
- Female
- Hemagglutinin Glycoproteins, Influenza Virus/administration & dosage
- Hemagglutinin Glycoproteins, Influenza Virus/immunology
- Humans
- Immunoglobulin G/blood
- Immunoglobulin G/immunology
- Influenza A Virus, H1N1 Subtype/drug effects
- Influenza A Virus, H1N1 Subtype/immunology
- Influenza A Virus, H1N1 Subtype/physiology
- Influenza Vaccines/administration & dosage
- Influenza Vaccines/immunology
- Influenza, Human/immunology
- Influenza, Human/prevention & control
- Influenza, Human/virology
- Madin Darby Canine Kidney Cells
- Mice, Inbred BALB C
- Orthomyxoviridae Infections/immunology
- Orthomyxoviridae Infections/prevention & control
- Orthomyxoviridae Infections/virology
- Mice
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Affiliation(s)
- Yucheol Cheong
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Minjin Kim
- Graduate Program in Biomaterials Science and Engineering, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Jina Ahn
- The Interdisciplinary Graduate Program in Integrative Biotechnology & Translational Medicine, Yonsei University, Incheon, South Korea
| | - Hana Oh
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Jongkwan Lim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Wonil Chae
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Seung Won Yang
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Min Seok Kim
- Graduate Program in Biomaterials Science and Engineering, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Ji Eun Yu
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Sanguine Byun
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Yo Han Jang
- Department of Biological Sciences and Biotechnology Major in Bio-Vaccine Engineering, Andong National University, Andong, South Korea
- Vaccine Industry Research Institute, Andong National University, Andong, South Korea
| | - Baik Lin Seong
- Department of Microbiology, College of Medicine, Yonsei University, Seoul, South Korea
- Vaccine Innovative Technology ALliance (VITAL)-Korea, Yonsei University, Seoul, South Korea
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5
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Su Q, Wang C, Song H, Zhang C, Liu J, Huang P, Zhang Y, Zhang J, Wang W. Co-delivery of anionic epitope/CpG vaccine and IDO inhibitor by self-assembled cationic liposomes for combination melanoma immunotherapy. J Mater Chem B 2021; 9:3892-3899. [PMID: 33928989 DOI: 10.1039/d1tb00256b] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Immunotherapy is revolutionizing cancer treatment. Vaccination of antigenic peptides has been identified as a promising strategy for cancer immunotherapy while insufficient immune responses were stimulated due to low antigenicity. Moreover, immune checkpoint blockade therapy is still limited by a low objective response rate. In this work, cationic polymer-lipid hybrid nanovesicle (P/LNV)-based liposomes are designed to simultaneously deliver tumor vaccines composed of anionic antigen epitopes, toll-like receptor-9 agonist (TLR9), CpG (AE/CpG), and indoleamine-2,3-dioxygenase (IDO) inhibitor, 1-methyl-tryptophan (1-MT), to increase the immunogenicity of peptide antigens and meanwhile block the immune checkpoint. P/LNV liposomes efficiently enhanced the uptake of vaccines by dendritic cells (DCs) and improved the maturation of DCs indicated by the significantly increased percentage of CD86+MHCI+ DCs, resulting in a potent cytotoxic T-lymphocyte (CTL) response against B16-OVA tumor cells in vitro. Importantly, the combination immunotherapy showed significantly higher therapeutic efficiency towards melanoma tumors in mice, compared with an untreated or individual therapy modality. Mechanistically, the co-delivery system could elicit a strong cancer-specific T-cell response, as characterized by the remarkably increased infiltration of CD8+ T cells in the tumor and draining lymph nodes. Altogether, cationic liposomes delivered with tumor vaccines and IDO inhibitor provide a promising platform for cancer immunotherapy by provoking antitumor T-cell immunity and simultaneously reversing the immunosuppressive tumor microenvironment.
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Affiliation(s)
- Qi Su
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China. and Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
| | - Changrong Wang
- School of Pharmacy, Shandong New Drug Loading & Release Technology and Preparation Engineering Laboratory, Binzhou Medical University, Guanhai Road 346, Yantai 264003, China
| | - Huijuan Song
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
| | - Chuangnian Zhang
- Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
| | - Jinjian Liu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
| | - Pingsheng Huang
- Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
| | - Yumin Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
| | - Jianhuan Zhang
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Weiwei Wang
- Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
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6
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Chatzikleanthous D, O'Hagan DT, Adamo R. Lipid-Based Nanoparticles for Delivery of Vaccine Adjuvants and Antigens: Toward Multicomponent Vaccines. Mol Pharm 2021; 18:2867-2888. [PMID: 34264684 DOI: 10.1021/acs.molpharmaceut.1c00447] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Despite the many advances that have occurred in the field of vaccine adjuvants, there are still unmet needs that may enable the development of vaccines suitable for more challenging pathogens (e.g., HIV and tuberculosis) and for cancer vaccines. Liposomes have already been shown to be highly effective as adjuvant/delivery systems due to their versatility and likely will find further uses in this space. The broad potential of lipid-based delivery systems is highlighted by the recent approval of COVID-19 vaccines comprising lipid nanoparticles with encapsulated mRNA. This review provides an overview of the different approaches that can be evaluated for the design of lipid-based vaccine adjuvant/delivery systems for protein, carbohydrate, and nucleic acid-based antigens and how these strategies might be combined to develop multicomponent vaccines.
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Affiliation(s)
- Despo Chatzikleanthous
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, G4 0RE Glasgow, U.K.,GSK, Via Fiorentina 1, 53100 Siena, Italy
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7
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Shin JH, Lee JH, Jeong SD, Noh JY, Lee HW, Song CS, Kim YC. C-di-GMP with influenza vaccine showed enhanced and shifted immune responses in microneedle vaccination in the skin. Drug Deliv Transl Res 2021; 10:815-825. [PMID: 32141036 DOI: 10.1007/s13346-020-00728-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A microneedle is a biomedical device which consists of multiple micron scale needles. It is widely used in various fields to deliver drugs and vaccines to the skin effectively. However, when considering improved vaccine efficacy in microneedle vaccination, it is important to find an appropriate adjuvant that is able to be used in transdermal delivery. Herein, we demonstrated the applicability of c-di-GMP, which is a stimulator of interferon genes (STING) agonist, as an adjuvant for influenza microneedle vaccination. Thus, 2 and 10 μg of GMP with the influenza vaccine were coated onto a microneedle, and then, BALB/c mice were immunized with the coated microneedle to investigate the immunogenicity and protection efficacy of the influenza microneedle vaccination. As a result, the adjuvant groups had an enhanced IgG response, IgG subtypes and HI titer compared to the vaccine only group. In addition to the humoral immunity, the use of an adjuvant has also been shown to improve the cellular immune response. In a challenge study, adjuvant groups had a 100% survival rate and rapid weight recovery. Taken together, this study confirms that GMP is an effective adjuvant for influenza microneedle vaccination. Graphical abstract.
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Affiliation(s)
- Ju-Hyung Shin
- Department of Chemical and Biomolecular engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Ji-Ho Lee
- Avian Disease Laboratory, College of Veterinary Medicine, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul, Republic of Korea
| | - Seong Dong Jeong
- Department of Chemical and Biomolecular engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Jin-Yong Noh
- Avian Disease Laboratory, College of Veterinary Medicine, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul, Republic of Korea
| | - Hyo Won Lee
- Department of Chemical and Biomolecular engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Chang-Seon Song
- Avian Disease Laboratory, College of Veterinary Medicine, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul, Republic of Korea.
| | - Yeu-Chun Kim
- Department of Chemical and Biomolecular engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea.
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8
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Jarai BM, Stillman Z, Bomb K, Kloxin AM, Fromen CA. Biomaterials-Based Opportunities to Engineer the Pulmonary Host Immune Response in COVID-19. ACS Biomater Sci Eng 2021; 7:1742-1764. [PMID: 33356134 PMCID: PMC7784663 DOI: 10.1021/acsbiomaterials.0c01287] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/25/2020] [Indexed: 02/08/2023]
Abstract
The COVID-19 pandemic caused by the global spread of the SARS-CoV-2 virus has led to a staggering number of deaths worldwide and significantly increased burden on healthcare as nations scramble to find mitigation strategies. While significant progress has been made in COVID-19 diagnostics and therapeutics, effective prevention and treatment options remain scarce. Because of the potential for the SARS-CoV-2 infections to cause systemic inflammation and multiple organ failure, it is imperative for the scientific community to evaluate therapeutic options aimed at modulating the causative host immune responses to prevent subsequent systemic complications. Harnessing decades of expertise in the use of natural and synthetic materials for biomedical applications, the biomaterials community has the potential to play an especially instrumental role in developing new strategies or repurposing existing tools to prevent or treat complications resulting from the COVID-19 pathology. Leveraging microparticle- and nanoparticle-based technology, especially in pulmonary delivery, biomaterials have demonstrated the ability to effectively modulate inflammation and may be well-suited for resolving SARS-CoV-2-induced effects. Here, we provide an overview of the SARS-CoV-2 virus infection and highlight current understanding of the host's pulmonary immune response and its contributions to disease severity and systemic inflammation. Comparing to frontline COVID-19 therapeutic options, we highlight the most significant untapped opportunities in immune engineering of the host response using biomaterials and particle technology, which have the potential to improve outcomes for COVID-19 patients, and identify areas needed for future investigations. We hope that this work will prompt preclinical and clinical investigations of promising biomaterials-based treatments to introduce new options for COVID-19 patients.
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Affiliation(s)
- Bader M. Jarai
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716
| | - Zachary Stillman
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716
| | - Kartik Bomb
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716
| | - April M. Kloxin
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716
| | - Catherine A. Fromen
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716
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9
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Cationic Nanoparticle-Based Cancer Vaccines. Pharmaceutics 2021; 13:pharmaceutics13050596. [PMID: 33919378 PMCID: PMC8143365 DOI: 10.3390/pharmaceutics13050596] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/14/2021] [Accepted: 04/17/2021] [Indexed: 12/15/2022] Open
Abstract
Cationic nanoparticles have been shown to be surprisingly effective as cancer vaccine vehicles in preclinical and clinical studies. Cationic nanoparticles deliver tumor-associated antigens to dendritic cells and induce immune activation, resulting in strong antigen-specific cellular immune responses, as shown for a wide variety of vaccine candidates. In this review, we discuss the relation between the cationic nature of nanoparticles and the efficacy of cancer immunotherapy. Multiple types of lipid- and polymer-based cationic nanoparticulate cancer vaccines with various antigen types (e.g., mRNA, DNA, peptides and proteins) and adjuvants are described. Furthermore, we focus on the types of cationic nanoparticles used for T-cell induction, especially in the context of therapeutic cancer vaccination. We discuss different cationic nanoparticulate vaccines, molecular mechanisms of adjuvanticity and biodistribution profiles upon administration via different routes. Finally, we discuss the perspectives of cationic nanoparticulate vaccines for improving immunotherapy of cancer.
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10
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Li D, Hu D, Xu H, Patra HK, Liu X, Zhou Z, Tang J, Slater N, Shen Y. Progress and perspective of microneedle system for anti-cancer drug delivery. Biomaterials 2020; 264:120410. [PMID: 32979655 DOI: 10.1016/j.biomaterials.2020.120410] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 09/18/2020] [Indexed: 02/06/2023]
Abstract
Transdermal drug delivery exhibited encouraging prospects, especially through superficial drug administration routes. However, only a few limited lipophilic drug molecules could cross the skin barrier, those are with low molecular weight and rational Log P value. Microneedles (MNs) can overcome these limitations to deliver numerous drugs into the dermal layer by piercing the outermost skin layer of the body. In the case of superficial cancer treatments, topical drug administration faces severely low transfer efficiency, and systemic treatments are always associated with side effects and premature drug degradation. MN-based systems have achieved excellent technical capabilities and been tested for pre-clinical chemotherapy, photothermal therapy, photodynamic therapy, and immunotherapy. In this review, we will focus on the features, progress, and opportunities of MNs in the anticancer drug delivery system. Then, we will discuss the strategies and advantages in these works and summarize challenges, perspectives, and translational potential for future applications.
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Affiliation(s)
- Dongdong Li
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Doudou Hu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Hongxia Xu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Hirak K Patra
- Wolfson College, University of Cambridge, Cambridge, CB3 9BB, United Kingdom; Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, United Kingdom
| | - Xiangrui Liu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zhuxian Zhou
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jianbin Tang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Nigel Slater
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, United Kingdom
| | - Youqing Shen
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
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11
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Lanza JS, Vucen S, Flynn O, Donadei A, Cojean S, Loiseau PM, Fernandes APSM, Frézard F, Moore AC. A TLR9-adjuvanted vaccine formulated into dissolvable microneedle patches or cationic liposomes protects against leishmaniasis after skin or subcutaneous immunization. Int J Pharm 2020; 586:119390. [PMID: 32540349 DOI: 10.1016/j.ijpharm.2020.119390] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 04/11/2020] [Accepted: 04/28/2020] [Indexed: 12/13/2022]
Abstract
Re-emergence and geographic expansion of leishmaniasis is accelerating efforts to develop a safe and effective Leshmania vaccine. Vaccines using Leishmania recombinant antigens, such as LiHyp1, which is mostly present in the amastigote parasite form, are being developed as a next generation to crude killed parasite-based vaccines. The main objective of this work was to develop a LiHyp1-based vaccine and determine if it can induce protective immunity in BALB/c mice when administered using a dissolvable microneedle (DMN) patch by the skin route. The LiHyp1 antigen was incorporated into cationic liposomes (CL), with or without the TLR9 agonist, CpG. The LiHyp1-liposomal vaccines were characterized with respect to size, protein encapsulation rates and retention of their physical characteristics after incorporation into the DMN patch. DMN mechanical strength and skin penetration ability were tested. A vaccine composed of LiHyp1, CpG and liposomes and subcutaneously injected or a vaccine containing antigen and CpG in DMN patches, without liposomes, induced high antibody responses and significant levels of protection against L. donovani parasite infection. This study progresses the development of an efficacious leishmania vaccine by detailing promising vaccine formulations and skin delivery technologies and it addresses protective efficacy of a liposome-based dissolvable microneedle patch vaccine system.
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Affiliation(s)
- Juliane S Lanza
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Antiparasite Chemotherapy, UMR 8076 CNRS BioCIS, Faculté de Pharmacie, Université Paris-Sud, Université Paris-Saclay, Chatenay-Malabry, France
| | - Sonja Vucen
- School of Pharmacy, University College Cork, Cork, Ireland
| | - Olivia Flynn
- School of Pharmacy, University College Cork, Cork, Ireland
| | - Agnese Donadei
- School of Pharmacy, University College Cork, Cork, Ireland
| | - Sandrine Cojean
- Antiparasite Chemotherapy, UMR 8076 CNRS BioCIS, Faculté de Pharmacie, Université Paris-Sud, Université Paris-Saclay, Chatenay-Malabry, France
| | - Philippe M Loiseau
- Antiparasite Chemotherapy, UMR 8076 CNRS BioCIS, Faculté de Pharmacie, Université Paris-Sud, Université Paris-Saclay, Chatenay-Malabry, France
| | - Ana Paula S M Fernandes
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Frédéric Frézard
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Anne C Moore
- School of Pharmacy, University College Cork, Cork, Ireland; School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland.
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12
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Nanomaterials for direct and indirect immunomodulation: A review of applications. Eur J Pharm Sci 2020; 142:105139. [DOI: 10.1016/j.ejps.2019.105139] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 10/14/2019] [Accepted: 11/03/2019] [Indexed: 01/03/2023]
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13
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Liposome and immune system interplay: Challenges and potentials. J Control Release 2019; 305:194-209. [DOI: 10.1016/j.jconrel.2019.05.030] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 05/15/2019] [Accepted: 05/17/2019] [Indexed: 01/20/2023]
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14
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Hatamihanza H, Alavi SE, Ebrahimi Shahmabadi H, Akbarzadeh A. Preparation, Characterization and Immunostimulatory Effects of CRD2 and CRD3 from TNF Receptor-1 Encapsulated into Pegylated Liposomal Nanoparticles. Int J Pept Res Ther 2019. [DOI: 10.1007/s10989-019-09882-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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15
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Moreno-Mendieta S, Barrera-Rosales A, Mata-Espinosa D, Barrios-Payán J, Sánchez S, Hernández-Pando R, Rodríguez-Sanoja R. Raw starch microparticles as BCG adjuvant: Their efficacy depends on the virulence of the infection strains. Vaccine 2019; 37:5731-5737. [PMID: 31000412 DOI: 10.1016/j.vaccine.2019.04.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 04/09/2019] [Accepted: 04/11/2019] [Indexed: 02/06/2023]
Abstract
The persistence of tuberculosis (TB) as one of the top 10 causes of death worldwide, the growing incidence of multidrug-resistant tuberculosis and the controversial efficacy of the Bacille Calmette-Guérin (BCG) vaccine drives the development of new generation multistage vaccines against this disease that can boost BCG-primed immunity. The use of polymeric microparticles for this purpose increases due to their advantages, especially their good safety levels and intrinsic immunostimulant properties. We recently explored and demonstrated the reinforcing and adjuvant potential of starch microparticles (SMPs) that administered intranasally to BCG-primed BALB/c mice, alone or in combination with a recombinant antigen, increased survival rates and induced a reduction of bacterial load in the lungs of mice infected with tuberculosis. Here, we tested the effect of SMPs added to the BCG vaccine as adjuvant to the whole-cell vaccine and investigated their contribution to the improvement of the protective efficacy of subcutaneous vaccination in mice challenged with virulent strains of Mycobacterium tuberculosis. As expected, our results were dependent on the infection strains, showing that virulence is a crucial factor that affects the adjuvant activity of SMPs. Our results also confirm the adjuvant activity of this carbohydrate and its usefulness in diverse vaccination strategies not only for mucosal but also for parenteral administration.
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Affiliation(s)
- Silvia Moreno-Mendieta
- CONACYT, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), A.P. 70228, Ciudad Universitaria, Ciudad de México 04510, Mexico; Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), A.P. 70228, Ciudad Universitaria, Ciudad de México 04510, Mexico
| | - Alejandra Barrera-Rosales
- Posgrado en Ciencias Bioquímicas, Universidad Nacional Autónoma de México (UNAM), A.P. 70228, Ciudad Universitaria, Ciudad de México 04510, Mexico
| | - Dulce Mata-Espinosa
- Sección de Patología Experimental, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15, Delegación Tlalpan, Ciudad de México, Mexico
| | - Jorge Barrios-Payán
- Sección de Patología Experimental, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15, Delegación Tlalpan, Ciudad de México, Mexico
| | - Sergio Sánchez
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), A.P. 70228, Ciudad Universitaria, Ciudad de México 04510, Mexico
| | - Rogelio Hernández-Pando
- Sección de Patología Experimental, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15, Delegación Tlalpan, Ciudad de México, Mexico.
| | - Romina Rodríguez-Sanoja
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), A.P. 70228, Ciudad Universitaria, Ciudad de México 04510, Mexico.
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16
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17
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Du G, Woythe L, van der Maaden K, Leone M, Romeijn S, Kros A, Kersten G, Jiskoot W, Bouwstra JA. Coated and Hollow Microneedle-Mediated Intradermal Immunization in Mice with Diphtheria Toxoid Loaded Mesoporous Silica Nanoparticles. Pharm Res 2018; 35:189. [PMID: 30105542 PMCID: PMC6096895 DOI: 10.1007/s11095-018-2476-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 08/06/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE To examine the immunogenicity of diphtheria toxoid (DT) loaded mesoporous silica nanoparticles (MSNs) after coated and hollow microneedle-mediated intradermal immunization in mice. METHODS DT was loaded into MSNs and the nanoparticle surface was coated with a lipid bilayer (LB-MSN-DT). To prepare coated microneedles, alternating layers of negatively charged LB-MSN-DT and positively charged N-trimethyl chitosan (TMC) were coated onto pH-sensitive microneedle arrays via a layer-by-layer approach. Microneedle arrays coated with 5 or 3 layers of LB-MSN-DT were used to immunize mice and the elicited antibody responses were compared with those induced by hollow microneedle-injected liquid formulation of LB-MSN-DT. Liquid DT formulation with and without TMC (DT/TMC) injected by a hollow microneedle were used as controls. RESULTS LB-MSN-DT had an average size of about 670 nm and a zeta potential of -35 mV. The encapsulation efficiency of DT in the nanoparticles was 77%. The amount of nano-encapsulated DT coated onto the microneedle array increased linearly with increasing number of the coating layers. Nano-encapsulated DT induced stronger immune responses than DT solution when delivered intradermally via hollow microneedles, but not when delivered via coated microneedles. CONCLUSION Both the nano-encapsulation of DT and the type of microneedles affect the immunogenicity of the antigen.
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Affiliation(s)
- Guangsheng Du
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Laura Woythe
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Koen van der Maaden
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Mara Leone
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Stefan Romeijn
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Alexander Kros
- Department of Supramolecular & Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands
| | - Gideon Kersten
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
- Institute for Translational Vaccinology (Intravacc), Bilthoven, The Netherlands
| | - Wim Jiskoot
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Joke A Bouwstra
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands.
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18
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Du G, Leone M, Romeijn S, Kersten G, Jiskoot W, Bouwstra JA. Immunogenicity of diphtheria toxoid and poly(I:C) loaded cationic liposomes after hollow microneedle-mediated intradermal injection in mice. Int J Pharm 2018; 547:250-257. [PMID: 29870743 DOI: 10.1016/j.ijpharm.2018.06.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/31/2018] [Accepted: 06/01/2018] [Indexed: 02/06/2023]
Abstract
In this study, we aimed to investigate the immunogenicity of cationic liposomes loaded with diphtheria toxoid (DT) and poly(I:C) after hollow microneedle-mediated intradermal vaccination in mice. The following liposomal formulations were studied: DT loaded liposomes, a mixture of free DT and poly(I:C)-loaded liposomes, a mixture of DT-loaded liposomes and free poly(I:C), and liposomal formulations with DT and poly(I:C) either individually or co-encapsulated in the liposomes. Reference groups were DT solution adjuvanted with or without poly(I:C) (DT/poly(I:C)). The liposomal formulations were characterized in terms of particle size, zeta potential, loading and release of DT and poly(I:C). After intradermal injection of BALB/c mice with the formulations through a hollow microneedle, the immunogenicity was assessed by DT-specific ELISAs. All formulations induced similar total IgG and IgG1 titers. However, all the liposomal groups containing both DT and poly(I:C) showed enhanced IgG2a titers compared to DT/poly(I:C) solution, indicating that the immune response was skewed towards a Th1 direction. This enhancement was similar for all liposomal groups that contain both DT and poly(I:C) in the formulations. Our results reveal that a mixture of DT encapsulated liposomes and poly(I:C) encapsulated liposomes have a similar effect on the antibody responses as DT and poly(I:C) co-encapsulated liposomes. These findings may have implications for future design of liposomal vaccine delivery systems.
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Affiliation(s)
- Guangsheng Du
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden 2300 RA, The Netherlands
| | - Mara Leone
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden 2300 RA, The Netherlands
| | - Stefan Romeijn
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden 2300 RA, The Netherlands
| | - Gideon Kersten
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden 2300 RA, The Netherlands; Department of Analytical Development and Formulation, Intravacc, Bilthoven 3720 AL, The Netherlands
| | - Wim Jiskoot
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden 2300 RA, The Netherlands
| | - Joke A Bouwstra
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden 2300 RA, The Netherlands.
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19
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Abstract
Most pathogens gain access to the human body and initiate systemic infections through mucosal sites. A large number of currently marketed licensed vaccines are parenterally administered; they generate strong systemic immunity but not mucosal immunity. Nasal vaccination is an appealing strategy for the induction of mucosal-specific immunity; however, its development is mostly challenged by several factors, such as inefficient antigen uptake, its rapid mucociliary clearance, size-restricted permeation across epithelial barriers and absence of safe human mucosal adjuvants. Therefore, a safer mucosal-adjuvanting strategy or efficient mucosal delivery platform is much warranted. This review summarizes challenges and the rationale for nasal vaccine development with a special focus on the use of nanoparticles based on polymers and lipids for mucosal vaccine delivery.
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20
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van der Maaden K, Heuts J, Camps M, Pontier M, Terwisscha van Scheltinga A, Jiskoot W, Ossendorp F, Bouwstra J. Hollow microneedle-mediated micro-injections of a liposomal HPV E743–63 synthetic long peptide vaccine for efficient induction of cytotoxic and T-helper responses. J Control Release 2018; 269:347-354. [DOI: 10.1016/j.jconrel.2017.11.035] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 11/20/2017] [Accepted: 11/21/2017] [Indexed: 01/01/2023]
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21
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Du G, Hathout RM, Nasr M, Nejadnik MR, Tu J, Koning RI, Koster AJ, Slütter B, Kros A, Jiskoot W, Bouwstra JA, Mönkäre J. Intradermal vaccination with hollow microneedles: A comparative study of various protein antigen and adjuvant encapsulated nanoparticles. J Control Release 2017; 266:109-118. [PMID: 28943194 DOI: 10.1016/j.jconrel.2017.09.021] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 09/12/2017] [Accepted: 09/13/2017] [Indexed: 12/17/2022]
Abstract
In this study, we investigated the potential of intradermal delivery of nanoparticulate vaccines to modulate the immune response of protein antigen using hollow microneedles. Four types of nanoparticles covering a broad range of physiochemical parameters, namely poly (lactic-co-glycolic) (PLGA) nanoparticles, liposomes, mesoporous silica nanoparticles (MSNs) and gelatin nanoparticles (GNPs) were compared. The developed nanoparticles were loaded with a model antigen (ovalbumin (OVA)) with and without an adjuvant (poly(I:C)), followed by the characterization of size, zeta potential, morphology, and loading and release of antigen and adjuvant. An in-house developed hollow-microneedle applicator was used to inject nanoparticle suspensions precisely into murine skin at a depth of about 120μm. OVA/poly(I:C)-loaded nanoparticles and OVA/poly(I:C) solution elicited similarly strong total IgG and IgG1 responses. However, the co-encapsulation of OVA and poly(I:C) in nanoparticles significantly increased the IgG2a response compared to OVA/poly(I:C) solution. PLGA nanoparticles and liposomes induced stronger IgG2a responses than MSNs and GNPs, correlating with sustained release of the antigen and adjuvant and a smaller nanoparticle size. When examining cellular responses, the highest CD8+ and CD4+ T cell responses were induced by OVA/poly(I:C)-loaded liposomes. In conclusion, the applicator controlled hollow microneedle delivery is an excellent method for intradermal injection of nanoparticle vaccines, allowing selection of optimal nanoparticle formulations for humoral and cellular immune responses.
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Affiliation(s)
- Guangsheng Du
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Rania M Hathout
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands; Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Maha Nasr
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands; Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - M Reza Nejadnik
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Jing Tu
- Department of Supramolecular & Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands
| | - Roman I Koning
- Department of Molecular Cell Biology, Section Electron Microscopy, Leiden University Medical Center, Leiden University, Leiden, The Netherlands
| | - Abraham J Koster
- Department of Molecular Cell Biology, Section Electron Microscopy, Leiden University Medical Center, Leiden University, Leiden, The Netherlands
| | - Bram Slütter
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands; Division of Biopharmaceutics, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Alexander Kros
- Department of Supramolecular & Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands
| | - Wim Jiskoot
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Joke A Bouwstra
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands.
| | - Juha Mönkäre
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
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22
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Courant T, Bayon E, Reynaud-Dougier HL, Villiers C, Menneteau M, Marche PN, Navarro FP. Tailoring nanostructured lipid carriers for the delivery of protein antigens: Physicochemical properties versus immunogenicity studies. Biomaterials 2017; 136:29-42. [PMID: 28511142 DOI: 10.1016/j.biomaterials.2017.05.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 04/14/2017] [Accepted: 05/01/2017] [Indexed: 12/11/2022]
Abstract
New vaccine formulations are still highly anticipated in the near-future to face incoming health challenges, such as emergence or reemergence of severe infectious diseases, immunosenescence associated with elderly or the spread of pathogens resistant to antibiotics. In particular, new nanoparticle-based adjuvants are promising for sub-unit vaccines in order to elicit potent and long lasting immune responses with a better control on their safety. In this context, an innovative delivery system of protein antigens has been designed based on the chemical grafting of the antigen onto the shell of Nanostructured Lipid Carriers (NLC). By using the well-known ovalbumin (OVA) as model of protein antigen, we have compared the immunogenicity properties in mice of different formulations of NLC grafted with OVA, by studying the influence of two main parameters: the size (80 nm versus 120 nm) and the surface charge (anionic versus cationic). We have shown that all mice immunized with OVA delivered through NLC produced much higher antibody titers for all tested formulations as compared to that immunized with OVA or OVA formulated in Complete Freund Adjuvant (CFA, positive control). More interestingly, the 80 nm anionic lipid particles were the most efficient antigen carrier for eliciting higher humoral immune response, as well as cellular immune response characterized by a strong secretion of gamma interferon (IFN-γ). These results associated with the demonstrated non-immunogenicity of the NLC carrier by itself open new avenues for the design of smart sub-unit vaccines containing properly engineered lipid nanoparticles which could stimulate or orient the immune system in a specific way.
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Affiliation(s)
- Thomas Courant
- Univ. Grenoble Alpes, F-38000, Grenoble, France; CEA, LETI, MINATEC Campus, F-38054, Grenoble, France
| | - Emilie Bayon
- Univ. Grenoble Alpes, F-38000, Grenoble, France; CEA, LETI, MINATEC Campus, F-38054, Grenoble, France; INSERM U1209, IAB, F-38042, Grenoble, France
| | | | - Christian Villiers
- Univ. Grenoble Alpes, F-38000, Grenoble, France; INSERM U1209, IAB, F-38042, Grenoble, France
| | - Mathilde Menneteau
- Univ. Grenoble Alpes, F-38000, Grenoble, France; CEA, LETI, MINATEC Campus, F-38054, Grenoble, France
| | - Patrice N Marche
- Univ. Grenoble Alpes, F-38000, Grenoble, France; INSERM U1209, IAB, F-38042, Grenoble, France
| | - Fabrice P Navarro
- Univ. Grenoble Alpes, F-38000, Grenoble, France; CEA, LETI, MINATEC Campus, F-38054, Grenoble, France.
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Hanagata N. CpG oligodeoxynucleotide nanomedicines for the prophylaxis or treatment of cancers, infectious diseases, and allergies. Int J Nanomedicine 2017; 12:515-531. [PMID: 28144136 PMCID: PMC5248940 DOI: 10.2147/ijn.s114477] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Unmethylated cytosine-guanine dinucleotide-containing oligodeoxynucleotides (CpG ODNs), which are synthetic agonists of Toll-like receptor 9 (TLR9), activate humoral and cellular immunity and are being developed as vaccine adjuvants to prevent or treat cancers, infectious diseases, and allergies. Free CpG ODNs have been used in many clinical trials implemented to verify their effects. However, recent research has reported that self-assembled CpG ODNs, protein/peptide–CpG ODN conjugates, and nanomaterial–CpG ODN complexes demonstrate higher adjuvant effects than free CpG ODNs, owing to their improved uptake efficiency into cells expressing TLR9. Moreover, protein/peptide–CpG ODN conjugates and nanomaterial–CpG ODN complexes are able to deliver CpG ODNs and antigens (or allergens) to the same types of cells, which enables a higher degree of prophylaxis or therapeutic effect. In this review, the author describes recent trends in the research and development of CpG ODN nanomedicines containing self-assembled CpG ODNs, protein/peptide–CpG ODN conjugates, and nanomaterial–CpG ODN complexes, focusing mainly on the results of preclinical and clinical studies.
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Affiliation(s)
- Nobutaka Hanagata
- Nanotechnology Innovation Station, National Institute for Materials Science, Tsukuba, Ibaraki; Graduate School of Life Science, Hokkaido University, Sapporo, Hokkaido, Japan
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24
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Overview on experimental models of interactions between nanoparticles and the immune system. Biomed Pharmacother 2016; 83:1365-1378. [DOI: 10.1016/j.biopha.2016.08.060] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 08/14/2016] [Accepted: 08/24/2016] [Indexed: 01/05/2023] Open
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25
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Kitaoka M, Wakabayashi R, Kamiya N, Goto M. Solid-in-oil nanodispersions for transdermal drug delivery systems. Biotechnol J 2016; 11:1375-1385. [PMID: 27529824 PMCID: PMC5132072 DOI: 10.1002/biot.201600081] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 07/10/2016] [Accepted: 07/11/2016] [Indexed: 12/15/2022]
Abstract
Transdermal administration of drugs has advantages over conventional oral administration or administration using injection equipment. The route of administration reduces the opportunity for drug evacuation before systemic circulation, and enables long-lasting drug administration at a modest body concentration. In addition, the skin is an attractive route for vaccination, because there are many immune cells in the skin. Recently, solid-in-oil nanodisperison (S/O) technique has demonstrated to deliver cosmetic and pharmaceutical bioactives efficiently through the skin. S/O nanodispersions are nanosized drug carriers designed to overcome the skin barrier. This review discusses the rationale for preparation of efficient and stable S/O nanodispersions, as well as application examples in cosmetic and pharmaceutical materials including vaccines. Drug administration using a patch is user-friendly, and may improve patient compliance. The technique is a potent transcutaneous immunization method without needles.
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Affiliation(s)
- Momoko Kitaoka
- Graduate School of Engineering, Kyushu University, Fukuoka, Japan
| | - Rie Wakabayashi
- Graduate School of Engineering, Kyushu University, Fukuoka, Japan.,Center for Transdermal Drug Delivery, Kyushu University, Fukuoka, Japan
| | - Noriho Kamiya
- Graduate School of Engineering, Kyushu University, Fukuoka, Japan.,Center for Transdermal Drug Delivery, Kyushu University, Fukuoka, Japan.,Center for Future Chemistry, Kyushu University, Fukuoka, Japan
| | - Masahiro Goto
- Graduate School of Engineering, Kyushu University, Fukuoka, Japan.,Center for Transdermal Drug Delivery, Kyushu University, Fukuoka, Japan.,Center for Future Chemistry, Kyushu University, Fukuoka, Japan
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Bobbala S, Hook S. Is There an Optimal Formulation and Delivery Strategy for Subunit Vaccines? Pharm Res 2016; 33:2078-97. [DOI: 10.1007/s11095-016-1979-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 06/21/2016] [Indexed: 12/16/2022]
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Targeted Programming of the Lymph Node Environment Causes Evolution of Local and Systemic Immunity. Cell Mol Bioeng 2016; 9:418-432. [PMID: 27547269 PMCID: PMC4978773 DOI: 10.1007/s12195-016-0455-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 06/16/2016] [Indexed: 01/21/2023] Open
Abstract
Biomaterial vaccines offer cargo protection, targeting, and co-delivery of signals to immune organs such as lymph nodes (LNs), tissues that coordinate adaptive immunity. Understanding how individual vaccine components impact immune response has been difficult owing to the systemic nature of delivery. Direct intra-lymph node (i.LN.) injection offers a unique opportunity to dissect how the doses, kinetics, and combinations of signals reaching LNs influence the LN environment. Here, i.LN. injection was used as a tool to study the local and systemic responses to vaccines comprised of soluble antigen and degradable polymer particles encapsulating toll-like receptor agonists as adjuvants. Microparticle vaccines increased antigen presenting cells and lymphocytes in LNs, enhancing activation of these cells. Enumeration of antigen-specific CD8+ T cells in blood revealed expansion over 7 days, followed by a contraction period over 1 month as memory developed. Extending this strategy to conserved mouse and human tumor antigens resulted in tumor antigen-specific primary and recall responses by CD8+ T cells. During challenge with an aggressive metastatic melanoma model, i.LN. delivery of depots slowed tumor growth more than a potent human vaccine adjuvant, demonstrating local treatment of a target immunological site can promote responses that are potent, systemic, and antigen-specific.
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Wang X, Wang N, Li N, Zhen Y, Wang T. Multifunctional particle-constituted microneedle arrays as cutaneous or mucosal vaccine adjuvant-delivery systems. Hum Vaccin Immunother 2016; 12:2075-2089. [PMID: 27159879 DOI: 10.1080/21645515.2016.1158368] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
To overcome drawbacks of current injection vaccines, such as causing needle phobia, needing health professionals for inoculation, and generating dangerous sharps wastes, researchers have designed novel vaccines that are combined with various microneedle arrays (MAs), in particular, with the multifunctional particle-constructed MAs (MPMAs). MPMAs prove able to enhance vaccine stability through incorporating vaccine ingredients in the carrier, and can be painlessly inoculated by minimally trained workers or by self-administration, leaving behind no metal needle pollution while eliciting robust systemic and mucosal immunity to antigens, thanks to delivering vaccines to cutaneous or mucosal compartments enriched in professional antigen-presenting cells (APCs). Especially, MPMAs can be easily integrated with functional molecules fulfilling targeting vaccine delivery or controlling immune response toward a Th1 or Th2 pathway to generate desired immunity against pathogens. Herein, we introduce the latest research and development of various MPMAs which are a novel but promising vaccine adjuvant delivery system (VADS).
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Affiliation(s)
- Xueting Wang
- a School of Pharmacy, Anhui Medical University , Hefei , China
| | - Ning Wang
- b School of Medical Engineering, Hefei University of Technology , Hefei , China
| | - Ning Li
- a School of Pharmacy, Anhui Medical University , Hefei , China
| | - Yuanyuan Zhen
- a School of Pharmacy, Anhui Medical University , Hefei , China
| | - Ting Wang
- a School of Pharmacy, Anhui Medical University , Hefei , China
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Ramezanli T, Karry K, Zhang Z, Shah K, Michniak-Kohn B. Transdermal Delivery of Drugs Using Patches and Patchless Delivery Systems. Drug Deliv 2016. [DOI: 10.1002/9781118833322.ch11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
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Zhang H, Gao XD. Nanodelivery systems for enhancing the immunostimulatory effect of CpG oligodeoxynucleotides. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 70:935-946. [PMID: 27772724 DOI: 10.1016/j.msec.2016.03.045] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 02/29/2016] [Accepted: 03/14/2016] [Indexed: 12/20/2022]
Abstract
Synthetic oligodeoxynucleotides containing immunostimulatory CpG motif mimic bacterial DNA and are potent activator of innate and adaptive immune responses. Therefore, CpG ODNs have significant potentials as immunotherapeutic agent for treatment of infectious diseases, allergy and cancer. Many clinical trials involving CpG ODNs either used alone or as adjuvant have been initiated. However, delivery of CpG ODNs to target sites still remains a great challenge due to their extreme susceptibility to nuclease degradation in serum and poor cellular uptake. Chemical modification of CpG ODNs backbone can protect them against degradation by nucleases, but have raised concern regarding several severe side effects. Development of efficient CpG ODNs delivery systems to address these issues and enhance their immunostimulatory effect are highly desirable. In recent years, the emergence of nanotechnology has provided unprecedented opportunities to encapsulate CpG ODN into various nanocarriers or synthesize CpG ODNs nanostructures. This review provides an overview of the delivery systems based on nanomaterials and nanostructures newly developed for enhancing the immunostimulatory effect of CpG ODNs, together with a brief discussion on perspectives for future studies in this field.
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Affiliation(s)
- Huijie Zhang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China.
| | - Xiao-Dong Gao
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China.
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Hjálmsdóttir Á, Bühler C, Vonwil V, Roveri M, Håkerud M, Wäckerle-Men Y, Gander B, Johansen P. Cytosolic Delivery of Liposomal Vaccines by Means of the Concomitant Photosensitization of Phagosomes. Mol Pharm 2016; 13:320-9. [PMID: 26704885 DOI: 10.1021/acs.molpharmaceut.5b00394] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
One of the greatest pharmaceutical challenges in vaccinology is the delivery of antigens to the cytosol of antigen-presenting cells (APCs) in order to allow for the stimulation of major histocompatibility complex (MHC) class I-restricted CD8(+) T-cell responses, which may act on intracellular infections or cancer. Recently, we described a novel method for cytotoxic T-lymphocyte (CTL) vaccination by combining antigens with a photosensitizer and light for cytosolic antigen delivery. The goal of the current project was to test this immunization method with particle-based formulations. Liposomes were prepared from dipalmitoylphosphatidylcholine and cholesterol, and the antigen ovalbumin (OVA) or the photosensitizer tetraphenyl chlorine disulfonate (TPCS2a) was separately encapsulated. C57BL/6 mice were immunized intradermally with OVA liposomes or a combination of OVA and TPCS2a liposomes, and light was applied the next day for activation of the photosensitizer resulting in cytosolic release of antigen from phagosomes. Immune responses were tested both after a prime only regime and after a prime-boost scheme with a repeat immunization 2 weeks post priming. Antigen-specific CD8(+) T-cell responses and antibody responses were analyzed ex vivo by flow cytometry and ELISA methods. The physicochemical stability of liposomes upon storage and light exposure was analyzed in vitro. Immunization with both TPCS2a- and OVA-containing liposomes greatly improved CD8(+) T-cell responses as compared to immunization without TPCS2a and as measured by proliferation in vivo and cytokine secretion ex vivo. In contrast, OVA-specific antibody responses (IgG1 and IgG2c) were reduced after immunization with TPCS2a-containing liposomes. The liposomal formulation protected the photosensitizer from light-induced inactivation during storage. In conclusion, the photosensitizer TPCS2a was successfully formulated in liposomes and enabled a shift from MHC class II to MHC class I antigen processing and presentation for stimulation of strong CD8(+) T-cell responses. Therefore, photosensitive particulate vaccines may have the potential to add to current vaccine practice a new method of vaccination that, as opposed to current vaccines, can stimulate strong CD8(+) T-cell responses.
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Affiliation(s)
- Ásdís Hjálmsdóttir
- Department of Dermatology, University of Zurich , Gloriastrasse 31, 8091 Zurich, Switzerland
| | - Céline Bühler
- Institute of Pharmaceutical Sciences, ETH Zurich , Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Vera Vonwil
- Institute of Pharmaceutical Sciences, ETH Zurich , Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Maurizio Roveri
- Institute of Pharmaceutical Sciences, ETH Zurich , Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Monika Håkerud
- Department of Dermatology, University of Zurich , Gloriastrasse 31, 8091 Zurich, Switzerland.,Department of Radiation Biology, Institute for Cancer Research, Norwegian Radium Hospital , Montebello, 0310 Oslo, Norway
| | - Ying Wäckerle-Men
- Department of Dermatology, University of Zurich , Gloriastrasse 31, 8091 Zurich, Switzerland
| | - Bruno Gander
- Institute of Pharmaceutical Sciences, ETH Zurich , Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Pål Johansen
- Department of Dermatology, University of Zurich , Gloriastrasse 31, 8091 Zurich, Switzerland
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Transcutaneous Immunization Using Nano-sized Drug Carriers. METHODS IN PHARMACOLOGY AND TOXICOLOGY 2016. [DOI: 10.1007/978-1-4939-3121-7_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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Rejinold NS, Shin JH, Seok HY, Kim YC. Biomedical applications of microneedles in therapeutics: recent advancements and implications in drug delivery. Expert Opin Drug Deliv 2015; 13:109-31. [DOI: 10.1517/17425247.2016.1115835] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Cevher E, Salomon SK, Somavarapu S, Brocchini S, Alpar HO. Development of chitosan-pullulan composite nanoparticles for nasal delivery of vaccines: in vivo studies. J Microencapsul 2015; 32:769-83. [PMID: 26480962 DOI: 10.3109/02652048.2015.1073393] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Here, we aimed at developing chitosan/pullulan composite nanoparticles and testing their potential as novel systems for the nasal delivery of diphtheria toxoid (DT). All the chitosan derivatives [N-trimethyl (TMC), chloride and glutamate] and carboxymethyl pullulan (CMP) were synthesised and antigen-loaded composites were prepared by polyion complexation of chitosan and pullulan derivatives (particle size: 239-405 nm; surface charge: +18 and +27 mV). Their immunological effects after intranasal administration to mice were compared to intramuscular route. Composite nanoparticles induced higher levels of IgG responses than particles formed with chitosan derivative and antigen. Nasally administered TMC-pullulan composites showed higher DT serum IgG titre when compared with the other composites. Co-encapsulation of CpG ODN within TMC-CMP-DT nanoparticles resulted in a balanced Th1/Th2 response. TMC/pullulan composite nanoparticles also induced highest cytokine levels compared to those of chitosan salts. These findings demonstrated that TMC-CMP-DT composite nanoparticles are promising delivery system for nasal vaccination.
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Affiliation(s)
- Erdal Cevher
- a Department of Pharmaceutical Technology, Faculty of Pharmacy , Istanbul University , Istanbul , Turkey
| | - Stefan K Salomon
- b Department of Pharmaceutics , The UCL School of Pharmacy, University of London , London , United Kingdom .,c GlaxoSmithKline , London , United Kingdom , and
| | - Satyanarayana Somavarapu
- b Department of Pharmaceutics , The UCL School of Pharmacy, University of London , London , United Kingdom
| | - Steve Brocchini
- b Department of Pharmaceutics , The UCL School of Pharmacy, University of London , London , United Kingdom
| | - H Oya Alpar
- b Department of Pharmaceutics , The UCL School of Pharmacy, University of London , London , United Kingdom .,d Department of Pharmaceutics, Faculty of Pharmacy , Kemerburgaz University , Istanbul , Turkey
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van der Maaden K, Luttge R, Vos PJ, Bouwstra J, Kersten G, Ploemen I. Microneedle-based drug and vaccine delivery via nanoporous microneedle arrays. Drug Deliv Transl Res 2015; 5:397-406. [PMID: 26044672 PMCID: PMC4529475 DOI: 10.1007/s13346-015-0238-y] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In the literature, several types of microneedles have been extensively described. However, porous microneedle arrays only received minimal attention. Hence, only little is known about drug delivery via these microneedles. However, porous microneedle arrays may have potential for future microneedle-based drug and vaccine delivery and could be a valuable addition to the other microneedle-based drug delivery approaches. To gain more insight into porous microneedle technologies, the scientific and patent literature is reviewed, and we focus on the possibilities and constraints of porous microneedle technologies for dermal drug delivery. Furthermore, we show preliminary data with commercially available porous microneedles and describe future directions in this field of research.
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Irvine DJ, Hanson MC, Rakhra K, Tokatlian T. Synthetic Nanoparticles for Vaccines and Immunotherapy. Chem Rev 2015; 115:11109-46. [PMID: 26154342 DOI: 10.1021/acs.chemrev.5b00109] [Citation(s) in RCA: 518] [Impact Index Per Article: 57.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Darrell J Irvine
- The Ragon Institute of MGH, Massachusetts Institute of Technology and Harvard University , 400 Technology Square, Cambridge, Massachusetts 02139, United States.,Howard Hughes Medical Institute , Chevy Chase, Maryland 20815, United States
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Mittal A, Schulze K, Ebensen T, Weissmann S, Hansen S, Guzmán CA, Lehr CM. Inverse micellar sugar glass (IMSG) nanoparticles for transfollicular vaccination. J Control Release 2015; 206:140-52. [DOI: 10.1016/j.jconrel.2015.03.017] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Revised: 03/14/2015] [Accepted: 03/16/2015] [Indexed: 01/23/2023]
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Polycation-decorated PLA microspheres induce robust immune responses via commonly used parenteral administration routes. Int Immunopharmacol 2014; 23:592-602. [DOI: 10.1016/j.intimp.2014.10.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 09/29/2014] [Accepted: 10/14/2014] [Indexed: 11/21/2022]
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Kitaoka M, Naritomi A, Hirakawa Y, Kamiya N, Goto M. Transdermal immunization using solid-in-oil nanodispersion with CpG oligodeoxynucleotide adjuvants. Pharm Res 2014; 32:1486-92. [PMID: 25361868 DOI: 10.1007/s11095-014-1554-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 10/15/2014] [Indexed: 01/08/2023]
Abstract
PURPOSE Simple and noninvasive vaccine administration alternatives to injections are desired. A solid-in-oil (S/O) nanodispersion system was able to overcome skin barriers and induce an immune response; however, antibody levels remained low. We applied an immune potentiator, CpG oligodeoxynucleotide (ODN), to enhance the immune response by controlling the T helper 1 (Th1)/T helper 2 (Th2) balance. METHODS S/O nanodispersions containing ovalbumin (OVA) and CpG ODN (CpG-A or CpG-B) were characterized by size distribution analysis and a protein release test. The skin permeation of fluorescence-labeled OVA was observed by fluorescence microscopy. Antigen-specific IgG, IgG1, and IgG2a responses were measured by enzyme-linked immunosorbent assay. RESULTS Co-encapsulation of CpG ODNs in S/O nanodispersions enhanced induction of OVA-specific IgG. S/O nanodispersion containing OVA and CpG-A had a smaller mean particle size and permeated the skin more efficiently. In contrast, CpG-B showed the highest protein release and induction of OVA-specific IgG. IgG subclass analysis revealed that OVA induced a Th2-dominant immune response, while the S/O nanodispersion containing CpG-A skewed the immune response toward a Th1-bias. CONCLUSIONS In combination with CpG ODN, the S/O nanodispersion system efficiently induced an antigen-specific antibody response. The Th1/Th2 immune balance could be controlled by the selection of CpG ODN type.
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Affiliation(s)
- Momoko Kitaoka
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, 819-0395, Fukuoka, Japan
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Zope H, Quer CB, Bomans PHH, Sommerdijk NAJM, Kros A, Jiskoot W. Peptide amphiphile nanoparticles enhance the immune response against a CpG-adjuvanted influenza antigen. Adv Healthc Mater 2014; 3:343-8. [PMID: 23983195 DOI: 10.1002/adhm.201300247] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 07/15/2013] [Indexed: 12/16/2022]
Abstract
Cationic peptide amphiphile nanoparticles are employed for co-delivery of immune modulator CpG and antigen. This results in better targeting to the antigen presenting cells and eliciting strong Th1 response, which is effective against the intracellular pathogens.
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Affiliation(s)
- Harshal Zope
- Department of Soft Matter Chemistry, Leiden Institute of Chemistry; Leiden University; P.O. Box 9502 2300 RA Leiden The Netherlands
| | - Christophe Barnier Quer
- Division of Drug Delivery Technology, Leiden Academic Centre for Drug Research; Leiden University; P.O. Box 9502 2300 RA Leiden The Netherlands
| | - Paul H. H. Bomans
- Laboratory of Materials and Interface Chemistry; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Nico A. J. M. Sommerdijk
- Laboratory of Materials and Interface Chemistry; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Alexander Kros
- Department of Soft Matter Chemistry, Leiden Institute of Chemistry; Leiden University; P.O. Box 9502 2300 RA Leiden The Netherlands
| | - Wim Jiskoot
- Division of Drug Delivery Technology, Leiden Academic Centre for Drug Research; Leiden University; P.O. Box 9502 2300 RA Leiden The Netherlands
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Reed SG, Orr MT, Fox CB. Key roles of adjuvants in modern vaccines. Nat Med 2013; 19:1597-608. [PMID: 24309663 DOI: 10.1038/nm.3409] [Citation(s) in RCA: 954] [Impact Index Per Article: 86.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 09/27/2013] [Indexed: 02/08/2023]
Abstract
Vaccines containing novel adjuvant formulations are increasingly reaching advanced development and licensing stages, providing new tools to fill previously unmet clinical needs. However, many adjuvants fail during product development owing to factors such as manufacturability, stability, lack of effectiveness, unacceptable levels of tolerability or safety concerns. This Review outlines the potential benefits of adjuvants in current and future vaccines and describes the importance of formulation and mechanisms of action of adjuvants. Moreover, we emphasize safety considerations and other crucial aspects in the clinical development of effective adjuvants that will help facilitate effective next-generation vaccines against devastating infectious diseases.
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Affiliation(s)
- Steven G Reed
- Infectious Disease Research Institute, Seattle, Washington, USA
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Abstract
Transcutaneous immunization refers to the topical application of antigens onto the epidermis. Transcutaneous immunization targeting the Langerhans cells of the skin has received much attention due to its safe, needle-free, and noninvasive antigen delivery. The skin has important immunological functions with unique roles for antigen-presenting cells such as epidermal Langerhans cells and dermal dendritic cells. In recent years, novel vaccine delivery strategies have continually been developed; however, transcutaneous immunization has not yet been fully exploited due to the penetration barrier represented by the stratum corneum, which inhibits the transport of antigens and adjuvants. Herein we review recent achievements in transcutaneous immunization, focusing on the various strategies for the enhancement of antigen delivery and vaccination efficacy. [BMB Reports 2013; 46(1): 17-24]
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Affiliation(s)
- Mi-Young Lee
- Department of Medical Biotechnology, Soonchunhyang University, Asan, Korea.
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Barnier-Quer C, Elsharkawy A, Romeijn S, Kros A, Jiskoot W. Adjuvant effect of cationic liposomes for subunit influenza vaccine: influence of antigen loading method, cholesterol and immune modulators. Pharmaceutics 2013; 5:392-410. [PMID: 24300513 PMCID: PMC3836624 DOI: 10.3390/pharmaceutics5030392] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 07/17/2013] [Accepted: 07/17/2013] [Indexed: 12/13/2022] Open
Abstract
Cationic liposomes are potential adjuvants for influenza vaccines. In a previous study we reported that among a panel of cationic liposomes loaded with influenza hemagglutinin (HA), DC-Chol:DPPC (1:1 molar ratio) liposomes induced the strongest immune response. However, it is not clear whether the cholesterol (Chol) backbone or the tertiary amine head group of DC-Chol was responsible for this. Therefore, in the present work we studied the influence of Chol in the lipid bilayer of cationic liposomes. Moreover, we investigated the effect of the HA loading method (adsorption versus encapsulation) and the encapsulation of immune modulators in DC-Chol liposomes on the immunogenicity of HA. Liposomes consisting of a neutral lipid (DPPC or Chol) and a cationic compound (DC-Chol, DDA, or eDPPC) were produced by film hydration-extrusion with/without an encapsulated immune modulator (CpG or imiquimod). The liposomes generally showed comparable size distribution, zeta potential and HA loading. In vitro studies with monocyte-derived human dendritic cells and immunization studies in C57Bl/6 mice showed that: (1) liposome-adsorbed HA is more immunogenic than encapsulated HA; (2) the incorporation of Chol in the bilayer of cationic liposomes enhances their adjuvant effect; and (3) CpG loaded liposomes are more efficient at enhancing HA-specific humoral responses than plain liposomes or Alhydrogel.
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Affiliation(s)
- Christophe Barnier-Quer
- Division of Drug Delivery Technology, Leiden Academic Centre for Drug Research, Leiden University, P.O. Box 9502, RA Leiden 2300, The Netherlands; E-Mails: (A.E.); (S.R.)
| | - Abdelrahman Elsharkawy
- Division of Drug Delivery Technology, Leiden Academic Centre for Drug Research, Leiden University, P.O. Box 9502, RA Leiden 2300, The Netherlands; E-Mails: (A.E.); (S.R.)
| | - Stefan Romeijn
- Division of Drug Delivery Technology, Leiden Academic Centre for Drug Research, Leiden University, P.O. Box 9502, RA Leiden 2300, The Netherlands; E-Mails: (A.E.); (S.R.)
| | - Alexander Kros
- Department of Soft Matter Chemistry, Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, RA Leiden 2300, The Netherlands; E-Mail:
| | - Wim Jiskoot
- Division of Drug Delivery Technology, Leiden Academic Centre for Drug Research, Leiden University, P.O. Box 9502, RA Leiden 2300, The Netherlands; E-Mails: (A.E.); (S.R.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +31-71-527-4314; Fax: +31-71-527-4565
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Suppression of immune response by antigen-modified liposomes encapsulating model agents: A novel strategy for the treatment of allergy. J Control Release 2013; 167:284-9. [DOI: 10.1016/j.jconrel.2013.02.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 12/17/2012] [Accepted: 02/02/2013] [Indexed: 11/18/2022]
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Guo L, Chen J, Qiu Y, Zhang S, Xu B, Gao Y. Enhanced transcutaneous immunization via dissolving microneedle array loaded with liposome encapsulated antigen and adjuvant. Int J Pharm 2013; 447:22-30. [PMID: 23410987 DOI: 10.1016/j.ijpharm.2013.02.006] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 01/06/2013] [Accepted: 02/03/2013] [Indexed: 11/28/2022]
Abstract
Transcutaneous immunization (TCI) with dissolving microneedle arrays (DMAs) is a promising vaccine administration method. In this work, we developed a TCI device consisting of dissolving polyvinylpyrrolidone (PVP) microneedles array, where in the tips are loaded with antigen and adjuvant encapsulated in liposomes. The microneedles could effectively be inserted into the skin and completely dissolve within 3 min. As a test-case, we selected ovalbumin (OVA) as a model antigen, CpG OND as adjuvant and cationic liposome (Lip) as a microparticulate vehicle for co-deliver antigens and adjuvant. Mice were immunized transcutaneously with DMAs containing OVA, OVA-CpG OND, OVA encapsulated in Lip, OVA-CpG OND encapsulated in Lip and conventional intramuscular injection (IM) with OVA solution, respectively. The results show that the anti-OVA IgG antibody level in the group immunized with the DMA containing OVA-CpG OND encapsulated in Lip was significantly higher than that of the other groups. Furthermore, it significantly increased the level of IgG2a (P<0.05) and achieved the shift of immune type from predominate Th2 type to a balance Th1/Th2 type. In conclusion, the DMA TCI device can effectively deliver the Lip encapsulating CpG OND-OVA into skin, enhancing the immune response and change the immune type.
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Affiliation(s)
- Lei Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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Giddam AK, Zaman M, Skwarczynski M, Toth I. Liposome-based delivery system for vaccine candidates: constructing an effective formulation. Nanomedicine (Lond) 2012; 7:1877-93. [DOI: 10.2217/nnm.12.157] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The discovery of liposomes in 1965 by Bangham and coworkers changed the prospects of drug delivery systems. Since then, the application of liposomes as vaccine delivery systems has been studied extensively. Liposomal vaccine delivery systems are made up of nano- or micro-sized vesicles consisting of phospholipid bilayers, in which the bioactive molecule is encapsulated/entrapped, adsorbed or surface coupled. In general, liposomes are not immunogenic on their own; thus, liposomes combined with immunostimulating ligands (adjuvants) or various other formulations have been used as vaccine delivery systems. A thorough understanding of formulation parameters allows the design of effective liposomal vaccine delivery systems. This article provides an overview of various factors that influence liposomal immunogenicity. In particular, the effects of vesicle size, surface charge, bilayer composition, lamellarity, pegylation and targeting of liposomes are described.
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Affiliation(s)
- Ashwini Kumar Giddam
- The University of Queensland, School of Chemistry & Molecular Biosciences, St Lucia, QLD 4072, Australia
| | - Mehfuz Zaman
- The University of Queensland, School of Chemistry & Molecular Biosciences, St Lucia, QLD 4072, Australia
| | - Mariusz Skwarczynski
- The University of Queensland, School of Chemistry & Molecular Biosciences, St Lucia, QLD 4072, Australia
| | - Istvan Toth
- The University of Queensland, School of Pharmacy, St Lucia, QLD 4072, Australia
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Kim YC, Park JH, Prausnitz MR. Microneedles for drug and vaccine delivery. Adv Drug Deliv Rev 2012; 64:1547-68. [PMID: 22575858 DOI: 10.1016/j.addr.2012.04.005] [Citation(s) in RCA: 1002] [Impact Index Per Article: 83.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 03/15/2012] [Accepted: 04/23/2012] [Indexed: 12/18/2022]
Abstract
Microneedles were first conceptualized for drug delivery many decades ago, but only became the subject of significant research starting in the mid-1990's when microfabrication technology enabled their manufacture as (i) solid microneedles for skin pretreatment to increase skin permeability, (ii) microneedles coated with drug that dissolves off in the skin, (iii) polymer microneedles that encapsulate drug and fully dissolve in the skin and (iv) hollow microneedles for drug infusion into the skin. As shown in more than 350 papers now published in the field, microneedles have been used to deliver a broad range of different low molecular weight drugs, biotherapeutics and vaccines, including published human studies with a number of small-molecule and protein drugs and vaccines. Influenza vaccination using a hollow microneedle is in widespread clinical use and a number of solid microneedle products are sold for cosmetic purposes. In addition to applications in the skin, microneedles have also been adapted for delivery of bioactives into the eye and into cells. Successful application of microneedles depends on device function that facilitates microneedle insertion and possible infusion into skin, skin recovery after microneedle removal, and drug stability during manufacturing, storage and delivery, and on patient outcomes, including lack of pain, skin irritation and skin infection, in addition to drug efficacy and safety. Building off a strong technology base and multiple demonstrations of successful drug delivery, microneedles are poised to advance further into clinical practice to enable better pharmaceutical therapies, vaccination and other applications.
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Takatani-Nakase T, Tokuyama E, Komai M, Takahashi K. Transcutaneous immunization system using a hydrotropic formulation induces a potent antigen-specific antibody response. PLoS One 2012; 7:e47980. [PMID: 23110149 PMCID: PMC3480500 DOI: 10.1371/journal.pone.0047980] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Accepted: 09/19/2012] [Indexed: 11/25/2022] Open
Abstract
Background Transcutaneous immunization (TCI) is a novel vaccination strategy, which is expected to have therapeutic applications. However, to develop effective TCI systems, a simple, non-invasive and safe transdermal formulation is required. This study developed a novel TCI system utilizing the co-administration of a liposoluble absorption enhancer, propylene glycol monocaprylate (PGMC) and hydrosoluble protein antigen without pretreatment of any typical adjuvants and disruption of the skin. Novel transdermal formulations were also prepared with sodium salicylate (NaSal) as a hydrotropic agent to improve the solubility of poorly water-soluble substances. Methodology/Principal Findings The TCI system, which used a transdermal formulation containing hen lysozyme (HEL) and PGMC, solubilized with NaSal, resulted in a substantial HEL-specific antibody response in an HEL dose-dependent manner even in the absence of potent adjuvants, such as cholera toxin (CT). We also investigated whether NaSal activates antigen-presenting cells in vitro to clarify the mechanisms of antibody production by the hydrotropic formulation. NaSal enhanced the expression of MHC class II molecules and increased the production of IL-12 and TNF-α in dendritic cells, which were stimulated by lipopolysaccharide in vitro, indicating that NaSal had an effective adjuvant-like property. Moreover, the use of NaSal in the TCI system did not induce an HEL-specific, IgE-dependent anaphylactic reaction. Conclusion/Significance Our TCI system using a hydrotropic formulation effectively and safely induced the intended immune response, and this system thus represents a new advantageous method that will result in improved TCI strategies.
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Affiliation(s)
- Tomoka Takatani-Nakase
- Department of Pharmaceutics, School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women’s University, Koshien Kyuban-cho, Nishinomiya, Hyogo, Japan
| | - Erika Tokuyama
- Department of Pharmaceutics, School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women’s University, Koshien Kyuban-cho, Nishinomiya, Hyogo, Japan
| | - Megumi Komai
- Department of Pharmaceutics, School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women’s University, Koshien Kyuban-cho, Nishinomiya, Hyogo, Japan
| | - Koichi Takahashi
- Department of Pharmaceutics, School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women’s University, Koshien Kyuban-cho, Nishinomiya, Hyogo, Japan
- * E-mail:
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Korsholm KS, Andersen PL, Christensen D. Cationic liposomal vaccine adjuvants in animal challenge models: overview and current clinical status. Expert Rev Vaccines 2012; 11:561-77. [PMID: 22827242 DOI: 10.1586/erv.12.22] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Cationic liposome formulations can function as efficient vaccine adjuvants. However, due to the highly diverse nature of lipids, cationic liposomes have different physical-chemical characteristics that influence their adjuvant mechanisms and their relevance for use in different vaccines. These characteristics can be further manipulated by incorporation of additional lipids or stabilizers, and inclusion of carefully selected immunostimulators is a feasible strategy when tailoring cationic liposomal adjuvants for specific disease targets. Thus, cationic liposomes present a plasticity, which makes them promising adjuvants for future vaccines. This versatility has also led to a vast amount of literature on different experimental liposomal formulations in combination with a wide range of immunostimulators. Here, we have compiled information about the animal challenge models and administration routes that have been used to study vaccine adjuvants based on cationic liposomes and provide an overview of the applicability, progress and clinical status of cationic liposomal vaccine adjuvants.
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Affiliation(s)
- Karen Smith Korsholm
- Statens Serum Institut, Department of Infectious Disease Immunology, Artillerivej 5, DK-2300 Copenhagen, Denmark.
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Functional RNA delivery targeted to dendritic cells by synthetic nanoparticles. Ther Deliv 2012; 3:1077-99. [DOI: 10.4155/tde.12.90] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Dendritic cells (DCs) are essential to many aspects of immune defense development and regulation. They provide important targets for prophylactic and therapeutic delivery. While protein delivery has had considerable success, RNA delivery is still expanding. Delivering RNA molecules for RNAi has shown particular success and there are reports on successful delivery of mRNA. Central, therein, is the application of cationic entities. Following endocytosis of the delivery vehicle for the RNA, cationic entities should promote vesicular membrane perturbation, facilitating cytosolic release. The present review explains the diversity of DC function in immune response development and control. Promotion of delivered RNA cytosolic release is discussed, relating to immunoprophylactic and therapeutic potential, and DC endocytic machinery is reviewed, showing how DC endocytic pathways influence the handling of internalized material. The potential advantages for application of replicating RNA are presented and discussed, in consideration of their value and development in the near future.
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