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Guo J, Liu C, Qi Z, Qiu T, Zhang J, Yang H. Engineering customized nanovaccines for enhanced cancer immunotherapy. Bioact Mater 2024; 36:330-357. [PMID: 38496036 PMCID: PMC10940734 DOI: 10.1016/j.bioactmat.2024.02.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 02/05/2024] [Accepted: 02/23/2024] [Indexed: 03/19/2024] Open
Abstract
Nanovaccines have gathered significant attention for their potential to elicit tumor-specific immunological responses. Despite notable progress in tumor immunotherapy, nanovaccines still encounter considerable challenges such as low delivery efficiency, limited targeting ability, and suboptimal efficacy. With an aim of addressing these issues, engineering customized nanovaccines through modification or functionalization has emerged as a promising approach. These tailored nanovaccines not only enhance antigen presentation, but also effectively modulate immunosuppression within the tumor microenvironment. Specifically, they are distinguished by their diverse sizes, shapes, charges, structures, and unique physicochemical properties, along with targeting ligands. These features of nanovaccines facilitate lymph node accumulation and activation/regulation of immune cells. This overview of bespoke nanovaccines underscores their potential in both prophylactic and therapeutic applications, offering insights into their future development and role in cancer immunotherapy.
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Affiliation(s)
- Jinyu Guo
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou, 362801, PR China
- College of Chemical Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, PR China
| | - Changhua Liu
- College of Chemical Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, PR China
| | - Zhaoyang Qi
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou, 362801, PR China
| | - Ting Qiu
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou, 362801, PR China
- College of Chemical Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, PR China
| | - Jin Zhang
- Qingyuan Innovation Laboratory, 1 Xueyuan Road, Quanzhou, 362801, PR China
- College of Chemical Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, PR China
| | - Huanghao Yang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, PR China
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2
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Islam F, Zeng Q. Advances in Organosulfur-Based Polymers for Drug Delivery Systems. Polymers (Basel) 2024; 16:1207. [PMID: 38732676 PMCID: PMC11085353 DOI: 10.3390/polym16091207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 02/07/2024] [Accepted: 04/10/2024] [Indexed: 05/13/2024] Open
Abstract
Organosulfur-based polymers have unique properties that make them useful for targeted and managed drug delivery, which can improve therapy while reducing side effects. This work aims to provide a brief review of the synthesis strategies, characterization techniques, and packages of organosulfur-based polymers in drug delivery. More importantly, this work discusses the characterization, biocompatibility, controlled release, nanotechnology, and targeted therapeutic aspects of these important structural units. This review provides not only a good comprehension of organosulfur-based polymers but also an insightful discussion of potential future prospectives in research. The discovery of novel organosulfur polymers and innovations is highly expected to be stimulated in order to synthesize polymer prototypes with increased functional accuracy, efficiency, and low cost for many industrial applications.
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Affiliation(s)
| | - Qingle Zeng
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
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3
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Trimaille T, Verrier B. Copolymer Micelles: A Focus on Recent Advances for Stimulus-Responsive Delivery of Proteins and Peptides. Pharmaceutics 2023; 15:2481. [PMID: 37896241 PMCID: PMC10609739 DOI: 10.3390/pharmaceutics15102481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 10/09/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Historically used for the delivery of hydrophobic drugs through core encapsulation, amphiphilic copolymer micelles have also more recently appeared as potent nano-systems to deliver protein and peptide therapeutics. In addition to ease and reproducibility of preparation, micelles are chemically versatile as hydrophobic/hydrophilic segments can be tuned to afford protein immobilization through different approaches, including non-covalent interactions (e.g., electrostatic, hydrophobic) and covalent conjugation, while generally maintaining protein biological activity. Similar to many other drugs, protein/peptide delivery is increasingly focused on stimuli-responsive nano-systems able to afford triggered and controlled release in time and space, thereby improving therapeutic efficacy and limiting side effects. This short review discusses advances in the design of such micelles over the past decade, with an emphasis on stimuli-responsive properties for optimized protein/peptide delivery.
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Affiliation(s)
- Thomas Trimaille
- Ingénierie des Matériaux Polymères, Univ Lyon, CNRS, Université Claude Bernard Lyon 1, INSA Lyon, Université Jean Monnet, UMR 5223, CEDEX, 69622 Villeurbanne, France
| | - Bernard Verrier
- Laboratoire de Biologie Tissulaire et d’Ingénierie Thérapeutique, Univ Lyon, CNRS, Université Claude Bernard Lyon 1, UMR 5305, 7 Passage du Vercors, CEDEX 07, 69367 Lyon, France;
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4
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Singh AK, Malviya R, Prajapati B, Singh S, Goyal P. Utilization of Stimuli-Responsive Biomaterials in the Formulation of Cancer Vaccines. J Funct Biomater 2023; 14:jfb14050247. [PMID: 37233357 DOI: 10.3390/jfb14050247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 04/21/2023] [Accepted: 04/26/2023] [Indexed: 05/27/2023] Open
Abstract
Immunology research has focused on developing cancer vaccines to increase the number of tumor-specific effector cells and their ability to fight cancer over the last few decades. There is a lack of professional success in vaccines compared to checkpoint blockade and adoptive T-cell treatment. The vaccine's inadequate delivery method and antigen selection are most likely to blame for the poor results. Antigen-specific vaccines have recently shown promising results in preclinical and early clinical investigations. To target particular cells and trigger the best immune response possible against malignancies, it is necessary to design a highly efficient and secure delivery method for cancer vaccines; however, enormous challenges must be overcome. Current research is focused on developing stimulus-responsive biomaterials, which are a subset of the range of levels of materials, to enhance therapeutic efficacy and safety and better regulate the transport and distribution of cancer immunotherapy in vivo. A concise analysis of current developments in the area of biomaterials that respond to stimuli has been provided in brief research. Current and anticipated future challenges and opportunities in the sector are also highlighted.
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Affiliation(s)
- Arun Kumar Singh
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida 203201, India
| | - Rishabha Malviya
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida 203201, India
| | - Bhupendra Prajapati
- Shree S. K. Patel College of Pharmaceutical Education and Research, Ganpat University, Kherva 384012, India
| | - Sudarshan Singh
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Priyanshi Goyal
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida 203201, India
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5
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Nanomaterial-Based Drug Delivery System Targeting Lymph Nodes. Pharmaceutics 2022; 14:pharmaceutics14071372. [PMID: 35890268 PMCID: PMC9325242 DOI: 10.3390/pharmaceutics14071372] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/28/2022] [Accepted: 06/22/2022] [Indexed: 02/06/2023] Open
Abstract
The lymphatic system plays an indispensable role in humoral balance, lipid metabolism, and immune regulation. The lymph nodes (LNs) are known as the primary sites of tumor metastasis and the metastatic LNs largely affected the prognosis of the patiens. A well-designed lymphatic-targeted system favors disease treatment as well as vaccination efficacy. In recent years, development of nanotechnologies and emerging biomaterials have gained increasing attention in developing lymph-node-targeted drug-delivery systems. By mimicking the endogenous macromolecules or lipid conjugates, lymph-node-targeted nanocarries hold potential for disease diagnosis and tumor therapy. This review gives an introduction to the physiological functions of LNs and the roles of LNs in diseases, followed by a review of typical lymph-node-targeted nanomaterial-based drug-delivery systems (e.g., liposomes, micelles, inorganic nanomaterials, hydrogel, and nanocapsules). Future perspectives and conclusions concerned with lymph-node-targeted drug-delivery systems are also provided.
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Ariawan AD, van Eersel J, Martin AD, Ke YD, Ittner LM. Recent progress in synthetic self-adjuvanting vaccine development. Biomater Sci 2022; 10:4037-4057. [DOI: 10.1039/d2bm00061j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Vaccination is a proven way to protect individuals against many infectious diseases, as currently highlighted in the global COVID-19 pandemic. Peptides- or small molecule antigen-based vaccination offer advantages over the...
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Punjabi MS, Naha A, Shetty D, Nayak UY. Lymphatic Drug Transport and Associated Drug Delivery Technologies: A Comprehensive Review. Curr Pharm Des 2021; 27:1992-1998. [PMID: 33272166 DOI: 10.2174/1381612826999201203214247] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 09/24/2020] [Indexed: 11/22/2022]
Abstract
Lymphatic system is the secondary circulation system of the human body after the systemic circulation. Various problems, including the first-pass metabolism through oral administration of medicines, can be resolved by lymphatic targeting. Lymphatic absorption has been explored in detail, and studies reveal the improved bioavailability of medicines. In the case of cancer, AIDS, and various other health problems, lymphatic targeting has been focused on due to the fact that lymph nodes are involved greatly in tumor metastasis. This article reviews lymphatic absorption and its exploration in the treatment of various health problems. The physiology of the lymphatic system, the mechanisms of absorption, and the various formulation systems suitable for lymphatic absorption have been discussed. Some recent novel approaches like hydrodynamically driven device (HDD) and carbon nanotubes for lymphatic delivery have also been appraised.
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Affiliation(s)
| | - Anup Naha
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal - 576104, Karnataka, India
| | - Disha Shetty
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal - 576104, Karnataka, India
| | - Usha Y Nayak
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal - 576104, Karnataka, India
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Geven M, Luo H, Koo D, Panambur G, Donno R, Gennari A, Marotta R, Grimaldi B, Tirelli N. Disulfide-Mediated Bioconjugation: Disulfide Formation and Restructuring on the Surface of Nanomanufactured (Microfluidics) Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2019; 11:26607-26618. [PMID: 31282644 DOI: 10.1021/acsami.9b07972] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study is about (1) nanomanufacturing (focusing on microfluidic-assisted nanoprecipitation), (2) advanced colloid characterization (focusing on field flow fractionation), and (3) the possible restructuring of surface disulfides. Disulfides are dynamic and exchangeable groups, and here we specifically focus, first, on their use to introduce biofunctional groups and, second, on their re-organization, which may lead to variable surface chemistries and uncontrolled cell interactions. The particles were obtained via microfluidic-assisted (flow-focused) nanoprecipitation of poly(ethylene glycol)-b-poly(ε-caprolactone) bearing or not a 2-pyridyl disulfide (PDS) terminal group, which quantitatively exchanges with thiols in solution. In this study, we have paid specific attention to size characterization, thereby also demonstrating the limitations of dynamic light scattering (DLS) as a stand-alone technique. By using asymmetric flow field flow fractionation coupled with DLS, static light scattering (SLS), and refractive index detectors, we show that relatively small amounts of >100 nm aggregates (cryogenic transmission electron microscopy and SLS/DLS comparison suggesting them to be wormlike micelles) dominated the stand-alone DLS results, whereas the "real" size distributions picked <50 nm. Our key result is that the kinetics of the conjugation based on PDS-thiol exchange was controlled by the thiol pKa, and this also determined the rate of the exchange between the resulting disulfides and glutathione (GSH). In particular, more acidic thiols (e.g., peptides, where a cysteine is flanked by cationic residues) react faster with PDS, but their disulfides hardly exchange with GSH; the reverse applies to thiols with a higher pKa. Disulfides that resist against restructuring via thiol-disulfide exchange allow for a stable bioconjugation, although they may be bad news for payload release under reducing conditions. However, experiments of both thiol release and nanoparticles uptake in cells (HCT116) show that also the disulfides formed from less-acidic and, therefore, less-reactive, and more exchangeable thiols were stable for at least a few hours even in a GSH-rich (10 mM) environment; this suggests a sufficiently long stability of surface groups to achieve, for example, a cell-targeting effect.
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Affiliation(s)
| | - Hanying Luo
- MilliporeSigma Materials Science , 6000 N Teutonia Avenue , Milwaukee , Wisconsin 53209 , United States
| | - Donghun Koo
- MilliporeSigma Materials Science , 6000 N Teutonia Avenue , Milwaukee , Wisconsin 53209 , United States
| | - Gangadhar Panambur
- MilliporeSigma Materials Science , 6000 N Teutonia Avenue , Milwaukee , Wisconsin 53209 , United States
| | | | | | | | | | - Nicola Tirelli
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health , The University of Manchester , M13 9PT Manchester , U.K
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Trimaille T, Lacroix C, Verrier B. Self-assembled amphiphilic copolymers as dual delivery system for immunotherapy. Eur J Pharm Biopharm 2019; 142:232-239. [PMID: 31229673 DOI: 10.1016/j.ejpb.2019.06.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 05/03/2019] [Accepted: 06/19/2019] [Indexed: 01/07/2023]
Abstract
Subunit vaccines using recombinant antigens appear as the privileged vaccination technology for safety reasons but still require the development of carriers/adjuvants ensuring optimal immunogenicity and efficacy. Micelles from self-assembled amphiphilic copolymers have recently emerged as highly relevant and promising candidates owing to their ease of preparation, low size (entering in lymphatic capillaries for reaching lymph nodes), size/surface tunability and chemical versatility enabling introduction of stimuli (e.g. pH) responsive features and biofunctionalization with dedicated molecules. In particular, research efforts have increasingly focused on dendritic cells (DCs) targeting and activation by co-delivering (with antigen) ligands of pattern recognition receptors (PRRs, e.g. toll-like receptors). Such strategy has appeared as one of the most effective for eliciting CD 8+ T-cell response, which is crucial in the eradication of tumors and numerous infectious diseases. In this short review, we highlight the recent advances in such micelle-based carriers in subunit vaccination and how their precise engineering can be a strong asset for guiding and controlling immune responses.
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Affiliation(s)
- Thomas Trimaille
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire, Marseille, France.
| | - Céline Lacroix
- Université Lyon 1, CNRS, UMR 5305, Biologie Tissulaire et Ingénierie Thérapeutique, IBCP, 69367 Lyon, France
| | - Bernard Verrier
- Université Lyon 1, CNRS, UMR 5305, Biologie Tissulaire et Ingénierie Thérapeutique, IBCP, 69367 Lyon, France
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10
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Li C, Lu Y, Chen Q, Hu H, Zhao X, Qiao M, Chen D. Tailored Polymers with Complement Activation Ability To Improve Antitumor Immunity. Mol Pharm 2019; 16:2648-2660. [PMID: 31046290 DOI: 10.1021/acs.molpharmaceut.9b00195] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The complement system plays an important role in host innate immunity, and its activation can be exploited as a potential strategy for vaccine adjuvants. Herein, a pH-responsive micellar vaccine platform (COOH-NPs) was developed using a carboxyl-modified diblock copolymer of poly(2-ethyl-2-oxazoline)-poly(d,l-lactide) (COOH-PEOz-PLA). The copolymer self-assembled into micelles with hydroxyl groups shielding on the surface, which activated the complement system for the enhanced immune responses. Compared with the control nanoparticles (OCH3-NPs), COOH-NPs significantly enhanced lymph node-resident dendritic cell maturation, antigen-specific IgG production, antigen-specific CD4+ and CD8+ T-cell activation, and the amount of memory T-cell generation in vivo. Furthermore, immunization with COOH-NPs/OVA in E.G7-OVA tumor-bearing mice not only remarkably inhibited tumor growth but also prolonged the survival of tumor-bearing mice. These results indicated that COOH-NPs with the capability of complement activation efficiently boosted the immune responses for the antitumor effect. The study demonstrated the significance of taking advantage of a complement-activating vaccine platform for cancer immunotherapy.
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Affiliation(s)
- Chenxi Li
- School of Pharmacy , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Yue Lu
- School of Pharmacy , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Qing Chen
- School of Pharmacy , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Haiyang Hu
- School of Pharmacy , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Xiuli Zhao
- School of Pharmacy , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Mingxi Qiao
- School of Pharmacy , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Dawei Chen
- School of Pharmacy , Shenyang Pharmaceutical University , Shenyang 110016 , China.,School of Pharmacy , Soochow University , Suzhou 215123 , China
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Hong E, Dobrovolskaia MA. Addressing barriers to effective cancer immunotherapy with nanotechnology: achievements, challenges, and roadmap to the next generation of nanoimmunotherapeutics. Adv Drug Deliv Rev 2019; 141:3-22. [PMID: 29339144 DOI: 10.1016/j.addr.2018.01.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 12/18/2017] [Accepted: 01/11/2018] [Indexed: 12/18/2022]
Abstract
Cancer is a complex systemic disorder that affects many organs and tissues and arises from the altered function of multiple cellular and molecular mechanisms. One of the systems malfunctioning in cancer is the immune system. Restoring and improving the ability of the immune system to effectively recognize and eradicate cancer is the main focus of immunotherapy, a topic which has garnered recent and significant interest. The initial excitement about immunotherapy, however, has been challenged by its limited efficacy in certain patient populations and the development of adverse effects such as therapeutic resistance and autoimmunity. At the same time, a number of advances in the field of nanotechnology have sought to address the challenges faced by modern immunotherapeutics and allow these therapeutic strategies to realize their full potential. This endeavour requires an understanding of not only the immunological barriers in cancer but also the mechanisms by which modern technologies and immunotherapeutics modulate the function of the immune system. Herein, we summarize the major barriers relevant to cancer immunotherapy and review current progress in addressing these obstacles using various approaches and clinically approved therapies. We then discuss the remaining challenges and how they can be addressed by nanotechnology. We lay out translational considerations relevant to the therapies described and propose a framework for the development of next-generation nanotechnology-enabled immunotherapies.
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Lee C, Jeong J, Lee T, Zhang W, Xu L, Choi JE, Park JH, Song JK, Jang S, Eom CY, Shim K, Seong Soo AA, Kang YS, Kwak M, Jeon HJ, Go JS, Suh YD, Jin JO, Paik HJ. Virus-mimetic polymer nanoparticles displaying hemagglutinin as an adjuvant-free influenza vaccine. Biomaterials 2018; 183:234-242. [PMID: 30176403 DOI: 10.1016/j.biomaterials.2018.08.036] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/19/2018] [Accepted: 08/19/2018] [Indexed: 12/31/2022]
Abstract
The generation of virus-mimetic nanoparticles has received much attention in developing a new vaccine for overcoming the limitations of current vaccines. Thus, a method, encompassing most viral features for their size, hydrophobic domain and antigen display, would represent a meaningful direction for the vaccine development. In the present study, a polymer-templated protein nanoball with direction oriented hemagglutinin1 on its surface (H1-NB) was prepared as a new influenza vaccine, exhibiting most of the viral features. Moreover, the concentrations of antigen on the particle surface were controlled, and its effect on immunogenicity was estimated by in vivo studies. Finally, H1-NB efficiently promoted H1-specific immune activation and cross-protective activities, which consequently prevented H1N1 infections in mice.
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Affiliation(s)
- Chaeyeon Lee
- Department of Polymer Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Jonghwa Jeong
- Department of Polymer Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Taeheon Lee
- Department of Polymer Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Wei Zhang
- Shanghai Public Health Clinical Center, Shanghai Medical College, Fudan University, Shanghai, 201508, China
| | - Li Xu
- Shanghai Public Health Clinical Center, Shanghai Medical College, Fudan University, Shanghai, 201508, China
| | - Ji Eun Choi
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea
| | - Ji Hyun Park
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea
| | - Jae Kwang Song
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea
| | - Sinae Jang
- Seoul Center, Korea Basic Science Institute (KBSI), Seoul, 02481, Republic of Korea
| | - Chi-Yong Eom
- Seoul Center, Korea Basic Science Institute (KBSI), Seoul, 02481, Republic of Korea
| | - KyuHwan Shim
- Department of Bionano Technology, Gachon University, Sungnam, 461-701, Republic of Korea
| | - A An Seong Soo
- Department of Bionano Technology, Gachon University, Sungnam, 461-701, Republic of Korea
| | - Young-Sun Kang
- Department of Biomedical Science & Technology (DBST), College of Veterinary Medicine, Konkuk University, Seoul, 27478, Republic of Korea
| | - Minseok Kwak
- Department of Chemistry, Pukyong National University, Busan, 48513, Republic of Korea
| | - Hyeong Jin Jeon
- School of Mechanical Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Jeung Sang Go
- School of Mechanical Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Yung Doug Suh
- Laboratory for Advanced Molecular Probing (LAMP), Research Center for Convergence Nanotechnology, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea
| | - Jun-O Jin
- Shanghai Public Health Clinical Center, Shanghai Medical College, Fudan University, Shanghai, 201508, China; Department of Medical Biotechnology, Yeungnam University, Gyeongsan, 38541, South Korea.
| | - Hyun-Jong Paik
- Department of Polymer Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea.
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Dong X, Sun Z, Liang J, Wang H, Zhu D, Leng X, Wang C, Kong D, Lv F. A visible fluorescent nanovaccine based on functional genipin crosslinked ovalbumin protein nanoparticles. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:1087-1098. [DOI: 10.1016/j.nano.2018.02.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 01/29/2018] [Accepted: 02/10/2018] [Indexed: 01/11/2023]
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14
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Zhao G, Chandrudu S, Skwarczynski M, Toth I. The application of self-assembled nanostructures in peptide-based subunit vaccine development. Eur Polym J 2017; 93:670-681. [PMID: 32226094 PMCID: PMC7094324 DOI: 10.1016/j.eurpolymj.2017.02.014] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 01/19/2017] [Accepted: 02/08/2017] [Indexed: 02/06/2023]
Abstract
Smaller polymer-peptide conjugates-based nanoparticles are often more immunogenic. Lipid-antigen conjugates-based nanoparticles can interact with immune receptors. Peptides with β-sheet conformation usually form nanofibers. α-Helical and random coil peptides tend to self-assemble into nanoparticles. Peptide-based nanostructures are usually poorer inducers of immune responses.
Peptide based-vaccines are becoming one of the most widely investigated prophylactic and therapeutic health care interventions against a variety of diseases, including cancer. However, the lack of a safe and highly efficient adjuvant (immune stimulant) is regarded as the biggest obstacle to vaccine development. The incorporation of a peptide antigen in a nanostructure-based delivery system was recently shown to overcome this obstacle. Nanostructures are often formed from antigens conjugated to molecules such as polymers, lipids, and peptide, with the help of self-assembly phenomenon. This review describes the application of self-assembly process for the production of peptide-based vaccine candidates and the ability of these nanostructures to stimulate humoral and cellular immune responses.
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Key Words
- (C18)2, N,N-dioctadecyl succinamic acid
- APC, antigen-presenting cell
- BMA, butyl methacrylate
- C16, 2-(R/S)-hexadecanoic acid
- CFA, complete Freund's adjuvant
- Conjugation
- CuAAC, copper-catalyzed azide-alkyne cycloaddition
- DLS, dynamic light scattering
- ELISA, enzyme-linked immunosorbent assay
- FDA, Food and Drug Administration
- GAS, group A streptococcus
- HCV, hepatitis C virus
- HIV, human immunodeficiency virus
- HPV, human papilloma virus
- IFA, incomplete Freund’s adjuvant
- IgG, immunoglobulin G
- LCP, lipid core peptide
- Lipopeptide
- Nanofiber
- Nanoparticle
- OVA, ovalbumin
- PADRE, pan DR epitope
- PBS, phosphate-buffered saline
- PDSMA, pyridyl disulfide methacrylamide
- PEG-PPS, poly(ethylene glycol)-stabilized poly(propylene sulfide) core nanoparticle
- Pam2Cys, dipalmitoyl-S-glyceryl cysteine
- Pam3Cys, tripalmitoyl-S-glyceryl cysteine
- PbCSP, Plasmodium berghei circumsporozoite protein
- Polymer
- SAP, self-assembling polypeptide
- SARS, severe acute respiratory syndrome
- Self-assembly
- T-VEC, talimogene laherparepvec
- TEM, transmission electron microscopy
- TLR2, toll-like receptor 2
- TLR4, toll-like receptor 4
- TLR9, toll-like receptor 9
- VLP, virus-like particle
- Vaccine
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Affiliation(s)
- Guangzu Zhao
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
| | - Saranya Chandrudu
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
- Pharmacy Australia Centre of Excellence, The University of Queensland, Woolloongabba, Brisbane, Queensland 4102, Australia
- Corresponding author at: School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia.
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15
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Chesson CB, Ekpo-Otu S, Endsley JJ, Rudra JS. Biomaterials-Based Vaccination Strategies for the Induction of CD8 +T Cell Responses. ACS Biomater Sci Eng 2016; 3:126-143. [PMID: 33450791 DOI: 10.1021/acsbiomaterials.6b00412] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Natural and synthetic biomaterials are increasingly being used for the development of vaccines and immunotherapies as alternatives to traditional live-attenuated formulations due to their improved safety profiles and no risk of reversion to virulence. Polymeric materials in particular enjoy attention due to the ease of fabrication, control over physicochemical properties, and their wide range of immunogenicity. While the majority of studies focus on inducing protective antibody responses, in recent years, materials-based strategies for the delivery of antigens and immunomodulators to improve CD8+T cell immunity against infectious and non-infectious diseases have gained momentum. Notably, platforms based on polymeric nanoparticles, liposomes, micelles, virus-like particles, self-assembling peptides and peptidomimetics, and multilayer thin films show considerable promise in preclinical studies. In this Review, we first introduce the concepts of CD8+T cell activation, effector and memory functions, and cytotoxic activity, followed by vaccine design for eliciting robust and protective long-lived CD8+T cell immunity. We then discuss different materials-based vaccines developed in the past decade to elicit CD8+T cell responses based on molecular composition or fabrication methods and conclude with a summary and glimpse at the future trends in this area.
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Affiliation(s)
- Charles B Chesson
- Department of Pharmacology & Toxicology, ‡Department of Microbiology & Immunology, and §Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, Texas 77555, United States
| | - Shaunte Ekpo-Otu
- Department of Pharmacology & Toxicology, Department of Microbiology & Immunology, and §Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, Texas 77555, United States
| | - Janice J Endsley
- Department of Pharmacology & Toxicology, Department of Microbiology & Immunology, and Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, Texas 77555, United States
| | - Jai S Rudra
- Department of Pharmacology & Toxicology, Department of Microbiology & Immunology, and Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, Texas 77555, United States
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16
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Kapadia CH, Tian S, Perry JL, Luft JC, DeSimone JM. Reduction Sensitive PEG Hydrogels for Codelivery of Antigen and Adjuvant To Induce Potent CTLs. Mol Pharm 2016; 13:3381-3394. [PMID: 27551741 DOI: 10.1021/acs.molpharmaceut.6b00288] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Educating our immune system via vaccination is an attractive approach to combat infectious diseases. Eliciting antigen specific cytotoxic T cells (CTLs), CD8+ effector T cells, is essential in controlling intracellular infectious diseases such as influenza (Flu), tuberculosis (TB), hepatitis, and HIV/AIDS, as well as tumors. However, vaccination utilizing subunit peptides to elicit a potent CD8+ T cell response with antigenic peptides is typically ineffective due to poor immunogenicity. Here we have engineered a reduction sensitive nanoparticle (NP) based subunit vaccine for intracellular delivery of an antigenic peptide and immunostimulatory adjuvant. We have co-conjugated an antigenic peptide (ovalbumin-derived CTL epitope [OVA257-264: SIINFEKL]) and an immunostimulatory adjuvant (CpG ODNs, TLR9 agonist) to PEG hydrogel NPs via a reduction sensitive linker. Bone-marrow derived dendritic cells (BMDCs) treated with the SIINFEKL conjugated NPs efficiently cross-presented the antigenic peptide via MHC-I surface receptor and induced proliferation of OT-I T cells. CpG ODN-conjugated NPs induced maturation of BMDCs as evidenced by the overexpression of CD80 and CD40 costimulatory receptors. Moreover, codelivery of NP conjugated SIINFEKL and CpG ODN significantly increased the frequency of IFN-γ producing CD8+ effector T cells in mice (∼6-fold improvement over soluble antigen and adjuvant). Furthermore, the NP subunit vaccine-induced effector T cells were able to kill up to 90% of the adoptively transferred antigenic peptide-loaded target cell. These results demonstrate that the reduction sensitive NP subunit vaccine elicits a potent CTL response and provide compelling evidence that this approach could be utilized to engineer particulate vaccines to deliver tumor or pathogen associated antigenic peptides to harness the immune system to fight against cancer and infectious diseases.
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Affiliation(s)
| | | | | | | | - Joseph M DeSimone
- Department of Chemical and Biomolecular Engineering, NC State University , Raleigh, North Carolina 27695, United States.,Sloan-Kettering Institute for Cancer Research, Memorial Sloan-Kettering Cancer Center , New York, New York 10021, United States
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17
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Thomas SN, Rohner NA, Edwards EE. Implications of Lymphatic Transport to Lymph Nodes in Immunity and Immunotherapy. Annu Rev Biomed Eng 2016; 18:207-33. [PMID: 26928210 DOI: 10.1146/annurev-bioeng-101515-014413] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Adaptive immune response consists of many highly regulated, multistep cascades that protect against infection while preserving the health of autologous tissue. The proper initiation, maintenance, and resolution of such responses require the precise coordination of molecular and cellular signaling over multiple time and length scales orchestrated by lymphatic transport. In order to investigate these functions and manipulate them for therapy, a comprehensive understanding of how lymphatics influence immune physiology is needed. This review presents the current mechanistic understanding of the role of the lymphatic vasculature in regulating biomolecule and cellular transport from the interstitium, peripheral tissue immune surveillance, the lymph node stroma and microvasculature, and circulating lymphocyte homing to lymph nodes. This review also discusses the ramifications of lymphatic transport in immunity as well as tolerance and concludes with examples of how lymphatic-mediated targeting of lymph nodes has been exploited for immunotherapy applications.
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Affiliation(s)
- Susan N Thomas
- George W. Woodruff School of Mechanical Engineering and.,Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332; .,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332.,Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia 30322
| | - Nathan A Rohner
- George W. Woodruff School of Mechanical Engineering and.,Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332;
| | - Erin E Edwards
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332; .,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332
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18
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Brubaker CE, Panagiotou V, Demurtas D, Bonner DK, Swartz MA, Hubbell JA. A Cationic Micelle Complex Improves CD8+ T Cell Responses in Vaccination Against Unmodified Protein Antigen. ACS Biomater Sci Eng 2016; 2:231-240. [DOI: 10.1021/acsbiomaterials.5b00456] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | - Melody A. Swartz
- Institute
for Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Jeffrey A. Hubbell
- Institute
for Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
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19
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Micelle-Based Adjuvants for Subunit Vaccine Delivery. Vaccines (Basel) 2015; 3:803-13. [PMID: 26426060 PMCID: PMC4693219 DOI: 10.3390/vaccines3040803] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 09/08/2015] [Accepted: 09/22/2015] [Indexed: 11/20/2022] Open
Abstract
In the development of subunit vaccines with purified or recombinant antigens for cancer and infectious diseases, the design of improved and safe adjuvants able to efficiently target the antigen presenting cells, such as dendritic cells, represents a crucial challenge. Nanoparticle-based antigen delivery systems have been identified as an innovative strategy to improve the efficacy of subunit vaccines. Among them, self-assembled micellar nanoparticles from amphiphilic (macro)molecules have recently emerged as promising candidates. In this short review, we report on the recent research findings highlighting the versatility and potential of such systems in vaccine delivery.
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20
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Li W, Wei H, Li H, Gao J, Feng SS, Guo Y. Cancer nanoimmunotherapy using advanced pharmaceutical nanotechnology. Nanomedicine (Lond) 2015; 9:2587-605. [PMID: 25490427 DOI: 10.2217/nnm.14.127] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Immunotherapy is a promising option for cancer treatment that might cure cancer with fewer side effects by primarily activating the host's immune system. However, the effect of traditional immunotherapy is modest, frequently due to tumor escape and resistance of multiple mechanisms. Pharmaceutical nanotechnology, which is also called cancer nanotechnology or nanomedicine, has provided a practical solution to solve the limitations of traditional immunotherapy. This article reviews the latest developments in immunotherapy and nanomedicine, and illustrates how nanocarriers (including micelles, liposomes, polymer-drug conjugates, solid lipid nanoparticles and biodegradable nanoparticles) could be used for the cellular transfer of immune effectors for active and passive nanoimmunotherapy. The fine engineering of nanocarriers based on the unique features of the tumor microenvironment and extra-/intra-cellular conditions of tumor cells can greatly tip the triangle immunobalance among host, tumor and nanoparticulates in favor of antitumor responses, which shows a promising prospect for nanoimmunotherapy.
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Affiliation(s)
- Wei Li
- International Joint Cancer Institute, The Second Military Medical University, 800 Xiangyin Road, Shanghai 200433, PR China
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21
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Cationic micelle based vaccine induced potent humoral immune response through enhancing antigen uptake and formation of germinal center. Colloids Surf B Biointerfaces 2015; 135:556-564. [PMID: 26311662 DOI: 10.1016/j.colsurfb.2015.07.079] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 06/29/2015] [Accepted: 07/28/2015] [Indexed: 12/15/2022]
Abstract
Nanoparticles have been proven to be an effective vaccine delivery system that can boost immune responses to subunit vaccines. Herein, we developed and characterized a cationic polymeric polyethylene glycol2000-poly ϵ-caprolactone2000-polyethylenimine2000 (mPEG2000-PCL2000-g-PEI2000) micelle as a potent vaccine delivery system to boost the immune response in vivo. The micelles that we developed exhibited great antigen-loading capability and minimal cytotoxicity in vitro. Meanwhile, micelles facilitated OVA antigen uptake by dendritic cells both in vitro and in vivo. More importantly, a micelle-formulated OVA vaccine could significantly promote anti-OVA antibody production by 190-fold and potently enhance T cell proliferation and the secretion of IL-5 and IFN-γ. We attributed these effects to its ability to promote antigen uptake, antigen deposition, and germinal center formation. In conclusion, the mPEG2000-PCL2000-PEI2000 micelle that we developed has potential as potent vaccine delivery system to induce Th2 immune response.
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22
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Bhargava A, Bunkar N, Khare NK, Mishra D, Mishra PK. Nanoengineered strategies to optimize dendritic cells for gastrointestinal tumor immunotherapy: from biology to translational medicine. Nanomedicine (Lond) 2015; 9:2187-202. [PMID: 25405796 DOI: 10.2217/nnm.14.115] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Nanomedicine may play an important role in improving the clinical efficacy of dendritic cell-based immunotherapy against GI tract malignancies. Dendritic cell-based vaccines have proven their effectiveness against different established GI tract tumors, yet their success is mainly hindered by the strong tumor-induced suppressive microenvironment. The sustained and targeted release of tumor antigens to dendritic cells using different nanoengineered approaches would be an efficient strategy to overcome established immune tolerance. Encapsulation would result in low diffusivity, restricted movement, effective crosspresentation and enhanced T-cell responses. These nanotherapy-based approaches will certainly help with the designing of clinically translatable dendritic cell-based therapeutic vaccines and facilitate the selective removal of residual disease in gastrointestinal cancer patients following standard treatments.
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Affiliation(s)
- Arpit Bhargava
- Translational Research Laboratory, School of Biological Sciences, Dr H. S. Gour Central University, Sagar, India
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23
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Abstract
Antigen- and adjuvant-based bioconjugates that can stimulate the immune system play an important role in vaccine applications. Bioconjugates have demonstrated unique physicochemical and biological properties, enabling vaccines to be delivered to key immune cells, to target specific intracellular pathways, or to mimic immunogenic properties of natural pathogens. In this Review we highlight recent advances in such molecular immunomodulators, with an emphasis on the structure-function relationships that provide the foundation for rational design of safe and effective vaccines and immunotherapies.
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Affiliation(s)
- Haipeng Liu
- †Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202, United States
- ‡Department of Oncology, Wayne State University, Detroit, Michigan 48201, United States
- §Tumor Biology and Microenvironment Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan 48201, United States
| | - Darrell J Irvine
- ▼Howard Hughes Medical Institute, Chevy Chase, Maryland 20815, United States
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24
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Gunkel-Grabole G, Sigg S, Lomora M, Lörcher S, Palivan CG, Meier WP. Polymeric 3D nano-architectures for transport and delivery of therapeutically relevant biomacromolecules. Biomater Sci 2015. [DOI: 10.1039/c4bm00230j] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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25
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Wilson JT, Postma A, Keller S, Convertine AJ, Moad G, Rizzardo E, Meagher L, Chiefari J, Stayton PS. Enhancement of MHC-I antigen presentation via architectural control of pH-responsive, endosomolytic polymer nanoparticles. AAPS JOURNAL 2014; 17:358-69. [PMID: 25501498 DOI: 10.1208/s12248-014-9697-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 11/01/2014] [Indexed: 11/30/2022]
Abstract
Protein-based vaccines offer a number of important advantages over organism-based vaccines but generally elicit poor CD8(+) T cell responses. We have previously demonstrated that pH-responsive, endosomolytic polymers can enhance protein antigen delivery to major histocompatibility complex class I (MHC-I) antigen presentation pathways thereby augmenting CD8(+) T cell responses following immunization. Here, we describe a new family of nanocarriers for protein antigen delivery assembled using architecturally distinct pH-responsive polymers. Reversible addition-fragmentation chain transfer (RAFT) polymerization was used to synthesize linear, hyperbranched, and core-crosslinked copolymers of 2-(N,N-diethylamino)ethyl methacrylate (DEAEMA) and butyl methacrylate (BMA) that were subsequently chain extended with a hydrophilic N,N-dimethylacrylamide (DMA) segment copolymerized with thiol-reactive pyridyl disulfide (PDS) groups. In aqueous solution, polymer chains assembled into 25 nm micellar nanoparticles and enabled efficient and reducible conjugation of a thiolated protein antigen, ovalbumin. Polymers demonstrated pH-dependent membrane-destabilizing activity in an erythrocyte lysis assay, with the hyperbranched and cross-linked polymer architectures exhibiting significantly higher hemolysis at pH ≤ 7.0 than the linear diblock. Antigen delivery with the hyperbranched and cross-linked polymer architecture enhanced in vitro MHC-I antigen presentation relative to free antigen, whereas the linear construct did not have a discernible effect. The hyperbranched system elicited a four- to fivefold increase in MHC-I presentation relative to the cross-linked architecture, demonstrating the superior capacity of the hyperbranched architecture in enhancing MHC-I presentation. This work demonstrates that the architecture of pH-responsive, endosomolytic polymers can have dramatic effects on intracellular antigen delivery, and offers a promising strategy for enhancing CD8(+) T cell responses to protein-based vaccines.
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Affiliation(s)
- John T Wilson
- Department of Bioengineering, University of Washington, Box 355061, Seattle, Washington, 98195, USA
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26
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Jiménez-Sánchez G, Pavot V, Chane-Haong C, Handké N, Terrat C, Gigmes D, Trimaille T, Verrier B. Preparation and In Vitro Evaluation of Imiquimod Loaded Polylactide-based Micelles as Potential Vaccine Adjuvants. Pharm Res 2014; 32:311-20. [DOI: 10.1007/s11095-014-1465-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 07/24/2014] [Indexed: 10/24/2022]
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27
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Keller S, Wilson JT, Patilea GI, Kern HB, Convertine AJ, Stayton PS. Neutral polymer micelle carriers with pH-responsive, endosome-releasing activity modulate antigen trafficking to enhance CD8(+) T cell responses. J Control Release 2014; 191:24-33. [PMID: 24698946 DOI: 10.1016/j.jconrel.2014.03.041] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 03/16/2014] [Accepted: 03/23/2014] [Indexed: 12/27/2022]
Abstract
Synthetic subunit vaccines need to induce CD8(+) cytotoxic T cell (CTL) responses for effective vaccination against intracellular pathogens. Most subunit vaccines primarily generate humoral immune responses, with a weaker than desired CD8(+) cytotoxic T cell response. Here, a neutral, pH-responsive polymer micelle carrier that alters intracellular antigen trafficking was shown to enhance CD8(+) T cell responses with a correlated increase in cytosolic delivery and a decrease in exocytosis. Polymer diblock carriers consisted of a N-(2-hydroxypropyl) methacrylamide corona block with pendent pyridyl disulfide groups for reversible conjugation of thiolated ovalbumin, and a tercopolymer ampholytic core-forming block composed of propylacrylic acid (PAA), dimethylaminoethyl methacrylate (DMAEMA), and butyl methacrylate (BMA). The diblock copolymers self-assembled into 25-30nm diameter micellar nanoparticles. Conjugation of ovalbumin to the micelles significantly enhanced antigen cross-presentation in vitro relative to free ovalbumin, an unconjugated physical mixture of ovalbumin and polymer, and a non-pH-responsive micelle-ovalbumin control. Mechanistic studies in a murine dendritic cell line (DC 2.4) demonstrated micelle-mediated enhancements in intracellular antigen retention and cytosolic antigen accumulation. Approximately 90% of initially internalized ovalbumin-conjugated micelles were retained in cells after 1.5h, compared to only ~40% for controls. Furthermore, cells dosed with conjugates displayed 67-fold higher cytosolic antigen levels relative to soluble ovalbumin 4h post uptake. Subcutaneous immunization of mice with ovalbumin-polymer conjugates significantly enhanced antigen-specific CD8(+) T cell responses (0.4% IFN-γ(+) of CD8(+)) compared to immunization with soluble protein, ovalbumin and polymer mixture, and the control micelle without endosome-releasing activity. Additionally, pH-responsive carrier facilitated antigen delivery to antigen presenting cells in the draining lymph nodes. As early as 90min post injection, ova-micelle conjugates were associated with 28% and 55% of dendritic cells and macrophages, respectively. After 24h, conjugates preferentially associated with dendritic cells, affording 30-, 3-, and 3-fold enhancements in uptake relative to free protein, physical mixture, and the non-pH-responsive conjugate controls, respectively. These results demonstrate the potential of pH-responsive polymeric micelles for use in vaccine applications that rely on CD8(+) T cell activation.
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Affiliation(s)
- Salka Keller
- Department of Bioengineering, University of Washington, Box 355061, Seattle, WA 98195-1721, USA.
| | - John T Wilson
- Department of Bioengineering, University of Washington, Box 355061, Seattle, WA 98195-1721, USA.
| | - Gabriela I Patilea
- Department of Bioengineering, University of Washington, Box 355061, Seattle, WA 98195-1721, USA.
| | - Hanna B Kern
- Department of Bioengineering, University of Washington, Box 355061, Seattle, WA 98195-1721, USA.
| | - Anthony J Convertine
- Department of Bioengineering, University of Washington, Box 355061, Seattle, WA 98195-1721, USA.
| | - Patrick S Stayton
- Department of Bioengineering, University of Washington, Box 355061, Seattle, WA 98195-1721, USA.
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28
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Development of Magnetic Nanoparticles for Cancer Gene Therapy: A Comprehensive Review. ACTA ACUST UNITED AC 2013. [DOI: 10.1155/2013/646284] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Since they were first proposed as nonviral transfection agents for their gene-carrying capacity, magnetic nanoparticles have been studied thoroughly, both in vitro and in vivo. Great effort has been made to manufacture biocompatible magnetic nanoparticles for use in the theragnosis of cancer and other diseases. Here we survey recent advances in the study of magnetic nanoparticles, as well as the polymers and other coating layers currently available for gene therapy, their synthesis, and bioconjugation processes. In addition, we review several gene therapy models based on magnetic nanoparticles.
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29
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Affiliation(s)
- Stéphanie Deshayes
- Department of Bioengineering; University of California; Los Angeles California 90095
| | - Andrea M. Kasko
- Department of Bioengineering; University of California; Los Angeles California 90095
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30
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Wilson JT, Keller S, Manganiello MJ, Cheng C, Lee CC, Opara C, Convertine A, Stayton PS. pH-Responsive nanoparticle vaccines for dual-delivery of antigens and immunostimulatory oligonucleotides. ACS NANO 2013; 7:3912-25. [PMID: 23590591 PMCID: PMC4042837 DOI: 10.1021/nn305466z] [Citation(s) in RCA: 251] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Protein subunit vaccines offer important potential advantages over live vaccine vectors but generally elicit weaker and shorter-lived cellular immune responses. Here we investigate the use of pH-responsive, endosomolytic polymer nanoparticles that were originally developed for RNA delivery as vaccine delivery vehicles for enhancing cellular and humoral immune responses. Micellar nanoparticles were assembled from amphiphilic diblock copolymers composed of an ampholytic core-forming block and a redesigned polycationic corona block doped with thiol-reactive pyridyl disulfide groups to enable dual-delivery of antigens and immunostimulatory CpG oligodeoxynucleotide (CpG ODN) adjuvants. Polymers assembled into 23 nm particles with simultaneous packaging of CpG ODN and a thiolated protein antigen, ovalbumin (ova). Conjugation of ova to nanoparticles significantly enhanced antigen cross-presentation in vitro relative to free ova or an unconjugated, physical mixture of the parent compounds. Subcutaneous vaccination of mice with ova-nanoparticle conjugates elicited a significantly higher CD8(+) T cell response (0.5% IFN-γ(+) of CD8(+)) compared to mice vaccinated with free ova or a physical mixture of the two components. Significantly, immunization with ova-nanoparticle conjugates electrostatically complexed with CpG ODN (dual-delivery) enhanced CD8(+) T cell responses (3.4% IFN-γ(+) of CD8(+)) 7-, 18-, and 8-fold relative to immunization with conjugates, ova administered with free CpG, or a formulation containing free ova and CpG complexed to micelles, respectively. Similarly, dual-delivery carriers significantly increased CD4(+)IFN-γ(+) (Th1) responses and elicited a balanced IgG1/IgG2c antibody response. Intradermal administration further augmented cellular immune responses, with dual-delivery carriers inducing ∼7% antigen-specific CD8(+) T cells. This work demonstrates the ability of pH-responsive, endosomolytic nanoparticles to actively promote antigen cross-presentation and augment cellular and humoral immune responses via dual-delivery of protein antigens and CpG ODN. Hence, pH-responsive polymeric nanoparticles offer promise as a delivery platform for protein subunit vaccines.
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Affiliation(s)
| | | | | | | | | | | | | | - Patrick S. Stayton
- Corresponding Author Box 355061, University of Washington, Seattle, WA 98195- 1721. Tel: (206) 685-8148.
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31
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Bei YY, Zhou XF, You BG, Yuan ZQ, Chen WL, Xia P, Liu Y, Jin Y, Hu XJ, Zhu QL, Zhang CG, Zhang XN, Zhang L. Application of the central composite design to optimize the preparation of novel micelles of harmine. Int J Nanomedicine 2013; 8:1795-808. [PMID: 23674893 PMCID: PMC3652517 DOI: 10.2147/ijn.s43555] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Lactose–palmitoyl–trimethyl–chitosan (Lac-TPCS), a novel amphipathic self-assembled polymer, was synthesized for administration of insoluble drugs to reduce their adverse effects. The central composite design was used to study the preparation technique of harmine (HM)-loaded self-assembled micelles based on Lac-TPCS (Lac-TPCS/HM). Three preparation methods and single factors were screened, including solvent type, HM amount, hydration volume, and temperature. The optimal preparation technique was identified after investigating the influence of two independent factors, namely, HM amount and hydration volume, on four indexes, ie, encapsulation efficiency (EE), drug-loading amount (LD), particle size, and polydispersity index (PDI). Analysis of variance showed a high coefficient of determination of 0.916 to 0.994, thus ensuring a satisfactory adjustment of the predicted prescription. The maximum predicted values of the optimal prescription were 91.62%, 14.20%, 183.3 nm, and 0.214 for EE, LD, size, and PDI, respectively, when HM amount was 1.8 mg and hydration volume was 9.6 mL. HM-loaded micelles were successfully characterized by Fourier-transform infrared spectroscopy, differential scanning calorimetry, X-ray diffraction, and a fluorescence-quenching experiment. Sustained release of Lac-TPCS/HM reached 65.3% in 72 hours at pH 7.4, while free HM released about 99.7% under the same conditions.
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Affiliation(s)
- Yong-Yan Bei
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, People's Republic of China
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