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Chung JT, Rafiei M, Chau Y. Self-adjuvanted L-arginine-modified dextran-based nanogels for sustained local antigenic protein delivery to antigen-presenting cells and enhanced cellular and humoral immune responses. Biomater Sci 2024; 12:1771-1787. [PMID: 38385306 DOI: 10.1039/d3bm01150j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
In the development of cancer vaccines, antigens are delivered to elicit potent and specific T-cell responses to eradicate tumour cells. Nonetheless, successful vaccines are often hampered by the poor immunogenicity of tumour antigens, rapid clearance by the innate immunity, and limited cross-presentation on MHC-I to activate CD8+ T-cells arm. To address these issues, we developed dextran-based nanogels to promote antigen uptake, storage, and cross-presentation on MHC-I, while directing immunogenic maturation of the antigen-presenting cells (APCs). To promote the nanocarriers interaction with cells, we modified DX with L-arginine (Arg), whose immunomodulatory activities have been well documented. The ArgDX nanogel performance was compared with the nanogel modified with L-histidine (His) and L-glutamate (Glut). Moreover, we introduced pH-sensitive hydrazone crosslinking during the nanogel formation for the conjugation and controlled release of antigen ovalbumin (OVA). The OVA-laden nanogels have an average size of 325 nm. We demonstrated that the nanogels could rapidly release cargoes upon a pH change from 7 to 5 within 8 days, indicating the controlled release of antigens in the acidic cellular compartments upon internalization. Our results revealed that the ArgDX nanogel could promote greater antigen uptake and storage in DCs in vitro and promoted a stronger immunogenic maturation of DCs and M1 polarization of the macrophages. The OVA signals were co-localized with lysosomal compartments up till 96 hours post-treatment and washing, suggesting the nanogels could facilitate prolonged antigen storage and supply from endo-lysosomal compartments. Furthermore, all the tested nanogel formulations retained antigens at the skin injection sites until day 21. Such delayed clearance could be due to the formation of micron-sized aggregates of OVA-laden nanogels, extending the interactions with the resident DCs. Amongst the amino acid modifications, ArgDX nanogels promoted the highest level of lymph node homing signal CCR7 on DCs. The nanogels also showed higher antigen presentation on both MHC-I and II than DX in vitro. In the in vivo immune studies, ArgDX nanogels were more superior in inducing cellular and humoral immunity than the other treatment groups on day 21 post-treatment. These results suggested that ArgDX nanogel is a promising self-adjuvanted nanocarrier for vaccine delivery.
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Affiliation(s)
- Jin Teng Chung
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China.
| | - Mehrnoosh Rafiei
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China.
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, Iran
| | - Ying Chau
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China.
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2
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Liposomal Formulations of a Polyleucine-Antigen Conjugate as Therapeutic Vaccines against Cervical Cancer. Pharmaceutics 2023; 15:pharmaceutics15020602. [PMID: 36839923 PMCID: PMC9965676 DOI: 10.3390/pharmaceutics15020602] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023] Open
Abstract
Human papilloma virus (HPV) is responsible for all cases of cervical cancer. While prophylactic vaccines are available, the development of peptide-based vaccines as a therapeutic strategy is still under investigation. In comparison with the traditional and currently used treatment strategies of chemotherapy and surgery, vaccination against HPV is a promising therapeutic option with fewer side effects. A peptide derived from the HPV-16 E7 protein, called 8Qm, in combination with adjuvants showed promise as a therapeutic vaccine. Here, the ability of polymerized natural amino acids to act as a self-adjuvating delivery system as a therapeutic vaccine was investigated for the first time. Thus, 8Qm was conjugated to polyleucine by standard solid-phase peptide synthesis and self-assembled into nanoparticles or incorporated in liposomes. The liposome bearing the 8Qm conjugate significantly increased mice survival and decreased tumor growth after a single immunization. Further, these liposomes eradicated seven-day-old well-established tumors in mice. Dendritic cell (DC)-targeting moieties were introduced to further enhance vaccine efficacy, and the newly designed liposomal vaccine was tested in mice bearing 11-day-old tumors. Interestingly, these DCs-targeting moieties did not significantly improve vaccine efficacy, whereas the simple liposomal formulation of 8Qm-polyleucine conjugate was still effective in tumor eradication. In summary, a peptide-based anticancer vaccine was developed that stimulated strong cellular immune responses without the help of a classical adjuvant.
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3
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Shi T, Sun M, Lu C, Meng F. Self-assembled nanoparticles: A new platform for revolutionizing therapeutic cancer vaccines. Front Immunol 2023; 14:1125253. [PMID: 36895553 PMCID: PMC9988954 DOI: 10.3389/fimmu.2023.1125253] [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: 12/16/2022] [Accepted: 02/07/2023] [Indexed: 02/23/2023] Open
Abstract
Cancer vaccines have had some success in the past decade. Based on in-depth analysis of tumor antigen genomics, many therapeutic vaccines have already entered clinical trials for multiple cancers, including melanoma, lung cancer, and head and neck squamous cell carcinoma, which have demonstrated impressive tumor immunogenicity and antitumor activity. Recently, vaccines based on self-assembled nanoparticles are being actively developed as cancer treatment, and their feasibility has been confirmed in both mice and humans. In this review, we summarize recent therapeutic cancer vaccines based on self-assembled nanoparticles. We describe the basic ingredients for self-assembled nanoparticles, and how they enhance vaccine immunogenicity. We also discuss the novel design method for self-assembled nanoparticles that pose as a promising delivery platform for cancer vaccines, and the potential in combination with multiple therapeutic approaches.
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Affiliation(s)
- Tianyu Shi
- The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Mengna Sun
- The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Changchang Lu
- The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Fanyan Meng
- The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
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4
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Xie F, Li R, Shu W, Zhao L, Wan J. Self-assembly of Peptide dendrimers and their bio-applications in theranostics. Mater Today Bio 2022; 14:100239. [PMID: 35295319 PMCID: PMC8919296 DOI: 10.1016/j.mtbio.2022.100239] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/04/2022] [Accepted: 03/06/2022] [Indexed: 12/22/2022] Open
Abstract
Nanotechnology has brought revolutionized advances in disease diagnosis and therapy. Self-assembled peptide dendrimers own novel physicochemical properties through the synergistic effects of the polypeptide chain, dendrimer and nano-structure, exhibiting great potential in theranostic. This review provides comprehensive insights into various peptide dendrimers for self-assembly. Their nanosize, morphology and composition are presented to understand self-assembly behaviors precisely. We further introduce the emerging theranostic applications based on specific imaging and efficient delivery recently.
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5
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Zhang J, Fan J, Skwarczynski M, Stephenson RJ, Toth I, Hussein WM. Peptide-Based Nanovaccines in the Treatment of Cervical Cancer: A Review of Recent Advances. Int J Nanomedicine 2022; 17:869-900. [PMID: 35241913 PMCID: PMC8887913 DOI: 10.2147/ijn.s269986] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 02/09/2022] [Indexed: 12/24/2022] Open
Abstract
Persistent infection with high-risk human papillomaviruses (HPVs), such as HPV-16 and HPV-18, can induce cervical cancer in humans. The disease carries high morbidity and mortality among females worldwide. Inoculation with prophylactic HPV vaccines, such as Gardasil® or Cervarix®, is the predominant method of preventing cervical cancer in females 6 to 26 years of age. However, despite the availability of commercial prophylactic HPV vaccines, no therapeutic HPV vaccines to eliminate existing HPV infections have been approved. Peptide-based vaccines, which form one of the most potent vaccine platforms, have been broadly investigated to overcome this shortcoming. Peptide-based vaccines are especially effective in inducing cellular immune responses and eradicating tumor cells when combined with nanoscale adjuvant particles and delivery systems. This review summarizes progress in the development of peptide-based nanovaccines against HPV infection.
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Affiliation(s)
- Jiahui Zhang
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia
| | - Jingyi Fan
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia
| | - Rachel J Stephenson
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD, Australia
- Institute for Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia
| | - Waleed M Hussein
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia
- Correspondence: Waleed M Hussein, School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, 4072, Australia, Tel +61 7 3365 2782, Email
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6
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Firdaus FZ, Skwarczynski M, Toth I. Developments in Vaccine Adjuvants. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2022; 2412:145-178. [PMID: 34918245 DOI: 10.1007/978-1-0716-1892-9_8] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Vaccines, including subunit, recombinant, and conjugate vaccines, require the use of an immunostimulator/adjuvant for maximum efficacy. Adjuvants not only enhance the strength and longevity of immune responses but may also influence the type of response. In this chapter, we review the adjuvants that are available for use in human vaccines, such as alum, MF59, AS03, and AS01. We extensively discuss their composition, characteristics, mechanism of action, and effects on the immune system. Additionally, we summarize recent trends in adjuvant discovery, providing a brief overview of saponins, TLRs agonists, polysaccharides, nanoparticles, cytokines, and mucosal adjuvants.
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Affiliation(s)
- Farrhana Ziana Firdaus
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia. .,Institute of Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia. .,School of Pharmacy, The University of Queensland, Woolloongabba, QLD, Australia.
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7
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Koirala P, Bashiri S, Toth I, Skwarczynski M. Current Prospects in Peptide-Based Subunit Nanovaccines. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2022; 2412:309-338. [PMID: 34918253 DOI: 10.1007/978-1-0716-1892-9_16] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Vaccination renders protection against pathogens via stimulation of the body's natural immune responses. Classical vaccines that utilize whole organisms or proteins have several disadvantages, such as induction of undesired immune responses, poor stability, and manufacturing difficulties. The use of minimal immunogenic pathogen components as vaccine antigens, i.e., peptides, can greatly reduce these shortcomings. However, subunit antigens require a specific delivery system and immune adjuvant to increase their efficacy. Recently, nanotechnology has been extensively utilized to address this issue. Nanotechnology-based formulation of peptide vaccines can boost immunogenicity and efficiently induce cellular and humoral immune responses. This chapter outlines the recent developments and advances of nano-sized delivery platforms for peptide antigens, including nanoparticles composed of polymers, peptides, lipids, and inorganic materials.
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Affiliation(s)
- Prashamsa Koirala
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, Australia
| | - Sahra Bashiri
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, Australia
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, Australia. .,Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia. .,School of Pharmacy, The University of Queensland, St Lucia, QLD, Australia.
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, Australia.
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8
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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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9
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Chowdhury S, Toth I, Stephenson RJ. Dendrimers in vaccine delivery: Recent progress and advances. Biomaterials 2021; 280:121303. [PMID: 34871877 DOI: 10.1016/j.biomaterials.2021.121303] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 11/08/2021] [Accepted: 11/29/2021] [Indexed: 12/19/2022]
Abstract
Dendrimers are well-defined, highly branched, multivalent and monodisperse molecules which host a range of attractive, yet functional, chemical and biological characteristics. A dendrimers accessible surface groups enable coupling to different functional moieties (e.g., antibodies, peptides, proteins, etc), which is further assisted by the dendrimers tailored size and surface charge. This adaptability allows for the preparation of molecularly precise vaccines with highly specific and predictable properties, and in conjunction with a dendrimers immune stimulating (adjuvanting) property, makes dendrimers attractive substrates for biomedical applications, including vaccines. This review highlights the structural and synthetic evolution of dendrimers throughout history, detailing the dendrimers role as both an adjuvant and carrier system for vaccine antigens, in addition to reviewing the development of commercially available vaccines for use in humans.
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Affiliation(s)
- Silvia Chowdhury
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia; Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072 Australia.
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia; School of Pharmacy, The University of Queensland, Brisbane, QLD 4072, Australia; Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072 Australia.
| | - Rachel J Stephenson
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia.
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10
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A new insight in gellan microspheres application to capture a plasmid DNA vaccine from an Escherichia coli lysate. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Song Y, Su Q, Song H, Shi X, Li M, Song N, Lou S, Wang W, Yu Z. Precisely Shaped Self-Adjuvanting Peptide Vaccines with Enhanced Immune Responses for HPV-Associated Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2021; 13:49737-49753. [PMID: 34648269 DOI: 10.1021/acsami.1c15361] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Peptide vaccines exhibit great potential in cancer therapy via eliciting antigen-specific host immune response and long-term immune memory to defend cancer cells. However, the low induced immune response of many developing vaccines implies the imperatives for understanding the favorable structural features of efficient cancer vaccines. Herein, we report on the two groups of self-adjuvanting peptide vaccines with distinct morphology and investigate the relationship between the morphology of peptide vaccines and the induced immune response. Two nanofibril peptide vaccines were created via co-assembly of a pentapeptide with a central 4-aminoproline residue, with its derivative functionalized with antigen epitopes derived from human papillomavirus E7 proteins, whereas utilization of a pentapeptide with a natural proline residue led to the formation of two nanoparticle peptide vaccines. The immunological results of dendritic cell (DCs) maturation and antigen presentation induced by the peptide assemblies implied the self-adjuvanting property of the resulting peptide vaccines. In particular, cellular uptake studies revealed the enhanced internalization and elongated retention of the nanofibril peptide vaccines in DCs, leading to their advanced performance in DC maturation, accumulation at lymph nodes, infiltration of cytotoxic T lymphocytes into tumor tissues, and eventually lysis of in vivo tumor cells, compared to the nanoparticle counterparts. The antitumor immune response caused by the nanofibril peptide vaccines was further augmented when simultaneously administrated with anti-PD-1 checkpoint blockades, suggesting the opportunity of the combinatorial immunotherapy by utilizing the nanofibril peptide vaccines. Our findings strongly demonstrate a robust relationship between the immune response of peptide vaccines and their morphology, thereby elucidating the critical role of morphological control in the design of efficient peptide vaccines and providing the guidance for the design of efficient peptide vaccines in the future.
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Affiliation(s)
- Yanqiu Song
- Key Laboratory of Functional Polymer Materials, Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Qi Su
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, 236 Baidi Road, Tianjin 300192, China
| | - Huijuan Song
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, 236 Baidi Road, Tianjin 300192, China
| | - Xiaoguang Shi
- Key Laboratory of Functional Polymer Materials, Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Mingming Li
- Key Laboratory of Functional Polymer Materials, Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Na Song
- Key Laboratory of Functional Polymer Materials, Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Shaofeng Lou
- Key Laboratory of Functional Polymer Materials, Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Weiwei Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, 236 Baidi Road, Tianjin 300192, China
| | - Zhilin Yu
- Key Laboratory of Functional Polymer Materials, Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
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12
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13
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Liu L, Wannemuehler MJ, Narasimhan B. Biomaterial nanocarrier-driven mechanisms to modulate anti-tumor immunity. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2021; 20. [PMID: 34423179 DOI: 10.1016/j.cobme.2021.100322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cancer immunotherapy approaches that utilize or enhance patients' inherent immunity have received extensive attention in the past decade. Biomaterial-based nanocarriers with tunable physicochemical properties offer significant promise in cancer immunotherapies. They can lower payload toxicity, provide sustained release of diverse payloads, and target specific disease site(s). Furthermore, nanocarrier-mediated immunotherapies can induce antigen-specific T lymphocytes, tissue-directed immune activation, and apoptosis of cancer cells all of which may comprise a new paradigm in cancer immunotherapy. This review describes key steps in biomaterial-mediated immune activation ranging from biomaterial surface protein adsorption, antigen presenting cell processing, and T cell activation. Nanocarrier-based immunomodulatory mechanisms including inherent adjuvanticity, enhanced cellular internalization, lymph node delivery, cross-presentation, and immunogenic cell death are discussed. In addition, studies that synergistically influence outcomes of nanocarrier-based combination immunotherapies are presented.
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Affiliation(s)
- Luman Liu
- Departments of Chemical and Biological Engineering, Iowa State University, Ames, IA
| | - Michael J Wannemuehler
- Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA.,Nanovaccine Institute, Iowa State University, Ames, IA
| | - Balaji Narasimhan
- Departments of Chemical and Biological Engineering, Iowa State University, Ames, IA.,Nanovaccine Institute, Iowa State University, Ames, IA
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14
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Polyacrylate-GnRH Peptide Conjugate as an Oral Contraceptive Vaccine Candidate. Pharmaceutics 2021; 13:pharmaceutics13071081. [PMID: 34371772 PMCID: PMC8308917 DOI: 10.3390/pharmaceutics13071081] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 06/30/2021] [Accepted: 07/12/2021] [Indexed: 01/30/2023] Open
Abstract
Contraceptive vaccines are designed to elicit immune responses against major components of animal reproductive systems. These vaccines, which are most commonly administered via injection, typically target gonadotropin-releasing hormone (GnRH). However, the need to restrain animals for treatment limits the field applications of injectable vaccines. Oral administration would broaden vaccine applicability. We explored contraceptive vaccine candidates composed of GnRH peptide hormone, universal T helper PADRE (P), and a poly(methylacrylate) (PMA)-based delivery system. When self-assembled into nanoparticles, PMA-P-GnRH induced the production of high IgG titers after subcutaneous and oral administration in mice. PADRE was then replaced with pig T helper derived from the swine flu virus, and the vaccine was tested in pigs. High levels of systemic antibodies were produced in pigs after both injection and oral administration of the vaccine. In conclusion, we developed a simple peptide–polymer conjugate that shows promise as an effective, adjuvant-free, oral GnRH-based contraceptive vaccine.
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15
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Dai CC, Huang W, Yang J, Hussein WM, Wang J, Khalil ZG, Capon RJ, Toth I, Stephenson RJ. Polyethylenimine quantity and molecular weight influence its adjuvanting properties in liposomal peptide vaccines. Bioorg Med Chem Lett 2021; 40:127920. [PMID: 33705898 DOI: 10.1016/j.bmcl.2021.127920] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 02/08/2021] [Accepted: 02/26/2021] [Indexed: 01/23/2023]
Abstract
We recently reported that polyethylenimine (PEI; molecular weight of 600 Da) acted as a vaccine adjuvant for liposomal group A Streptococcus (GAS) vaccines, eliciting immune responses in vivo with IgG antibodies giving opsonic activity against five Australian GAS clinical isolates. However, to date, no investigation comparing the structure-activity relationship between the molecular weight of PEI and its adjuvanting activity in vaccine development has been performed. We hypothesized that the molecular weight and quantity of PEI in a liposomal vaccine will impact its adjuvanting properties. In this study, we successfully formulated liposomes containing different molecular weights of PEI (600, 1800, 10k and 25k Da) and equivalents of PEI (0.5, 1 and 2) of branched PEI. Outbred mice were administrated the vaccine formulations intranasally, and the mice that received a high ratio of PEI 600 reported a stronger immune response than the mice that received a lower ratio of PEI 600. Interestingly, mice that received the same quantity of PEI 600, PEI 10k and PEI 25k showed similar immune responses in vivo and in vitro. This comparative study highlights the ratio of PEI present in the liposome vaccines impacts adjuvanting activity, however, PEI molecular weight did not significantly enhance its adjuvanting properties. We also report that the stability of PEI liposomes is critical for vaccines to elicit the desired immune response.
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Affiliation(s)
- Charles C Dai
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Wenbin Huang
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Jieru Yang
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Waleed M Hussein
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Jingwen Wang
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Zeinab G Khalil
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Robert J Capon
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia; School of Pharmacy, The University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Rachel J Stephenson
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia.
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16
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Forner M, Cañas-Arranz R, Defaus S, de León P, Rodríguez-Pulido M, Ganges L, Blanco E, Sobrino F, Andreu D. Peptide-Based Vaccines: Foot-and-Mouth Disease Virus, a Paradigm in Animal Health. Vaccines (Basel) 2021; 9:vaccines9050477. [PMID: 34066901 PMCID: PMC8150788 DOI: 10.3390/vaccines9050477] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/19/2021] [Accepted: 05/02/2021] [Indexed: 02/07/2023] Open
Abstract
Vaccines are considered one of the greatest global health achievements, improving the welfare of society by saving lives and substantially reducing the burden of infectious diseases. However, few vaccines are fully effective, for reasons ranging from intrinsic limitations to more contingent shortcomings related, e.g., to cold chain transport, handling and storage. In this context, subunit vaccines where the essential antigenic traits (but not the entire pathogen) are presented in rationally designed fashion have emerged as an attractive alternative to conventional ones. In particular, this includes the option of fully synthetic peptide vaccines able to mimic well-defined B- and T-cell epitopes from the infectious agent and to induce protection against it. Although, in general, linear peptides have been associated to low immunogenicity and partial protection, there are several strategies to address such issues. In this review, we report the progress towards the development of peptide-based vaccines against foot-and-mouth disease (FMD) a highly transmissible, economically devastating animal disease. Starting from preliminary experiments using single linear B-cell epitopes, recent research has led to more complex and successful second-generation vaccines featuring peptide dendrimers containing multiple copies of B- and T-cell epitopes against FMD virus or classical swine fever virus (CSFV). The usefulness of this strategy to prevent other animal and human diseases is discussed.
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Affiliation(s)
- Mar Forner
- Departament de Ciències Experimentals i de la Salut (DCEXS-UPF), 08003 Barcelona, Spain; (M.F.); (S.D.)
| | - Rodrigo Cañas-Arranz
- Centro de Biología Molecular “Severo Ochoa” (CSIC-UAM), 28049 Madrid, Spain; (R.C.-A.); (P.d.L.); (M.R.-P.)
| | - Sira Defaus
- Departament de Ciències Experimentals i de la Salut (DCEXS-UPF), 08003 Barcelona, Spain; (M.F.); (S.D.)
| | - Patricia de León
- Centro de Biología Molecular “Severo Ochoa” (CSIC-UAM), 28049 Madrid, Spain; (R.C.-A.); (P.d.L.); (M.R.-P.)
| | - Miguel Rodríguez-Pulido
- Centro de Biología Molecular “Severo Ochoa” (CSIC-UAM), 28049 Madrid, Spain; (R.C.-A.); (P.d.L.); (M.R.-P.)
| | - Llilianne Ganges
- Centre de Recerca en Sanitat Animal (CReSA), OIE Reference Laboratory for Classical Swine Fever, Institute of Agrifood Research and Technology, 08193 Barcelona, Spain;
| | - Esther Blanco
- Centro de Investigación en Sanidad Animal (CISA-INIA), 28130 Valdeolmos, Spain;
| | - Francisco Sobrino
- Centro de Biología Molecular “Severo Ochoa” (CSIC-UAM), 28049 Madrid, Spain; (R.C.-A.); (P.d.L.); (M.R.-P.)
- Correspondence: (F.S.); (D.A.)
| | - David Andreu
- Departament de Ciències Experimentals i de la Salut (DCEXS-UPF), 08003 Barcelona, Spain; (M.F.); (S.D.)
- Correspondence: (F.S.); (D.A.)
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Preclinical models and technologies to advance nanovaccine development. Adv Drug Deliv Rev 2021; 172:148-182. [PMID: 33711401 DOI: 10.1016/j.addr.2021.03.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/26/2021] [Accepted: 03/01/2021] [Indexed: 12/13/2022]
Abstract
The remarkable success of targeted immunotherapies is revolutionizing cancer treatment. However, tumor heterogeneity and low immunogenicity, in addition to several tumor-associated immunosuppression mechanisms are among the major factors that have precluded the success of cancer vaccines as targeted cancer immunotherapies. The exciting outcomes obtained in patients upon the injection of tumor-specific antigens and adjuvants intratumorally, reinvigorated interest in the use of nanotechnology to foster the delivery of vaccines to address cancer unmet needs. Thus, bridging nano-based vaccine platform development and predicted clinical outcomes the selection of the proper preclinical model will be fundamental. Preclinical models have revealed promising outcomes for cancer vaccines. However, only few cases were associated with clinical responses. This review addresses the major challenges related to the translation of cancer nano-based vaccines to the clinic, discussing the requirements for ex vivo and in vivo models of cancer to ensure the translation of preclinical success to patients.
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Azuar A, Li Z, Shibu MA, Zhao L, Luo Y, Shalash AO, Khalil ZG, Capon RJ, Hussein WM, Toth I, Skwarczynski M. Poly(hydrophobic amino acid)-Based Self-Adjuvanting Nanoparticles for Group A Streptococcus Vaccine Delivery. J Med Chem 2021; 64:2648-2658. [PMID: 33529034 DOI: 10.1021/acs.jmedchem.0c01660] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Peptide antigens have been widely used in the development of vaccines, especially for those against autoimmunity-inducing pathogens and cancers. However, peptide-based vaccines require adjuvant and/or a delivery system to stimulate desired immune responses. Here, we explored the potential of self-adjuvanting poly(hydrophobic amino acids) (pHAAs) to deliver peptide-based vaccine against Group A Streptococcus (GAS). We designed and synthesized self-assembled nanoparticles with a variety of conjugates bearing a peptide antigen (J8-PADRE) and polymerized hydrophobic amino acids to evaluate the effects of structural arrangement and pHAAs properties on a system's ability to induce humoral immune responses. Immunogenicity of the developed conjugates was also compared to commercially available human adjuvants. We found that a linear conjugate bearing J8-PADRE and 15 copies of leucine induced equally effective, or greater, immune responses than commercial adjuvants. Our fully defined, adjuvant-free, single molecule-based vaccine induced the production of antibodies capable of killing GAS bacteria.
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Affiliation(s)
- Armira Azuar
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Zhuoqing Li
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Mohini A Shibu
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Lili Zhao
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Yacheng Luo
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Ahmed O Shalash
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Zeinab G Khalil
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Robert J Capon
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Waleed M Hussein
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
- School of Pharmacy, Woolloongabba, The University of Queensland, St. Lucia, QLD 4102, Australia
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
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Hussein WM, Skwarczynski M, Toth I. Double Conjugation Using Mercapto-Acryloyl and Alkyne-Azide Reactions for the Synthesis of Branched Multiantigenic Vaccine Candidates. Methods Mol Biol 2021; 2355:141-150. [PMID: 34386957 DOI: 10.1007/978-1-0716-1617-8_13] [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] [Indexed: 06/13/2023]
Abstract
Chemical conjugation of peptide epitopes and lipids into a single branched lipopeptide is a promising strategy for the generation of multiantigenic vaccines. We developed a double conjugation strategy that utilizes a mercapto-acryloyl Michael addition reaction between two unprotected peptides, followed by a copper-catalyzed alkyne-azide 1,3-dipolar cycloaddition (CuAAC) click reaction. The technique proved capable of producing branched multiantigenic vaccine candidates with an overall yield of 78%.
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Affiliation(s)
- Waleed M Hussein
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD, Australia.
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD, Australia
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD, Australia
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20
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Hussein WM, Toth I, Skwarczynski M. Peptide-Polymer Conjugation Via Copper-Catalyzed Alkyne-Azide 1,3-Dipolar Cycloaddition. Methods Mol Biol 2021; 2355:1-7. [PMID: 34386945 DOI: 10.1007/978-1-0716-1617-8_1] [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] [Indexed: 06/13/2023]
Abstract
Dendrimers are structurally well-defined, artificial polymers with physicochemical characteristics that often imitate biomacromolecules. Consequently, they are encouraging candidates for the delivery of peptide-based vaccines. We developed a synthetic protocol for conjugating a peptide antigen derived from human papillomavirus (HPV) E7 protein to a poly(t-butyl acrylate) dendrimer to construct a vaccine candidate. The synthetic pathway utilized copper-catalyzed alkyne-azide 1,3-dipolar cycloaddition (CuAAC) click reaction, and resulted in a 76% substitution ratio of the 8-arm dendrimer. The obtained peptide-polymer construct was self-assembled, dialyzed, and characterized by microanalysis and dynamic light scattering.
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Affiliation(s)
- Waleed M Hussein
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD, Australia.
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD, Australia
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD, Australia
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21
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Manabe Y, Chang TC, Fukase K. Recent advances in self-adjuvanting glycoconjugate vaccines. DRUG DISCOVERY TODAY. TECHNOLOGIES 2020; 37:61-71. [PMID: 34895656 DOI: 10.1016/j.ddtec.2020.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/21/2020] [Accepted: 11/26/2020] [Indexed: 01/02/2023]
Abstract
Compared to traditional vaccines that are formulated into mixtures of an adjuvant and an antigen, a self-adjuvanting vaccine consists of an antigen that is covalently conjugated to a well-defined adjuvant. In self-adjuvanting vaccines, innate immune receptor ligands are usually used as adjuvants. Innate immune receptor ligands effectively trigger acquired immunity through the activation of innate immunity to enhance host immune responses to antigens. When a self-adjuvanting vaccine is used, immune cells simultaneously uptake the antigen and the adjuvant because they are covalently linked. Consequently, the adjuvant can specifically induce immune responses against the conjugated antigen. Importantly, self-adjuvanting vaccines do not require co-administration of additional adjuvants or immobilization to carrier proteins, which enables avoidance of the use of highly toxic adjuvants or the induction of undesired immune responses. Given these excellent properties, self-adjuvanting vaccines are expected to serve as candidates for the next generation of vaccines. Herein, we review vaccine adjuvants, with a focus on the adjuvants used in self-adjuvanting vaccines, and then overview recent advances made with self-adjuvanting conjugate vaccines.
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Affiliation(s)
- Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University, Japan; Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, Japan.
| | - Tsung-Che Chang
- Department of Chemistry, Graduate School of Science, Osaka University, Japan
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, Japan; Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, Japan.
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22
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Abudula T, Bhatt K, Eggermont LJ, O'Hare N, Memic A, Bencherif SA. Supramolecular Self-Assembled Peptide-Based Vaccines: Current State and Future Perspectives. Front Chem 2020; 8:598160. [PMID: 33195107 PMCID: PMC7662149 DOI: 10.3389/fchem.2020.598160] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 10/05/2020] [Indexed: 02/01/2023] Open
Abstract
Despite the undeniable success of vaccination programs in preventing diseases, effective vaccines against several life-threatening infectious pathogens such as human immunodeficiency virus are still unavailable. Vaccines are designed to boost the body's natural ability to protect itself against foreign pathogens. To enhance vaccine-based immunotherapies to combat infections, cancer, and other conditions, biomaterials have been harnessed to improve vaccine safety and efficacy. Recently, peptides engineered to self-assemble into specific nanoarchitectures have shown great potential as advanced biomaterials for vaccine development. These supramolecular nanostructures (i.e., composed of many peptides) can be programmed to organize into various forms, including nanofibers, nanotubes, nanoribbons, and hydrogels. Additionally, they have been designed to be responsive upon exposure to various external stimuli, providing new innovations in the development of smart materials for vaccine delivery and immunostimulation. Specifically, self-assembled peptides can provide cell adhesion sites, epitope recognition, and antigen presentation, depending on their biochemical and structural characteristics. Furthermore, they have been tailored to form exquisite nanostructures that provide improved enzymatic stability and biocompatibility, in addition to the controlled release and targeted delivery of immunomodulatory factors (e.g., adjuvants). In this mini review, we first describe the different types of self-assembled peptides and resulting nanostructures that have recently been investigated. Then, we discuss the recent progress and development trends of self-assembled peptide-based vaccines, their challenges, and clinical translatability, as well as their future perspectives.
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Affiliation(s)
| | - Khushbu Bhatt
- Department of Pharmaceutical Sciences, Northeastern University, Boston, MA, United States
| | - Loek J Eggermont
- Department of Chemical Engineering, Northeastern University, Boston, MA, United States
| | - Nick O'Hare
- Department of Chemical Engineering, Northeastern University, Boston, MA, United States
| | - Adnan Memic
- Center of Nanotechnology, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sidi A Bencherif
- Department of Chemical Engineering, Northeastern University, Boston, MA, United States.,Department of Bioengineering, Northeastern University, Boston, MA, United States.,Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States.,Sorbonne University, UTC CNRS UMR 7338, Biomechanics and Bioengineering (BMBI), University of Technology of Compiègne, Compiègne, France
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23
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Malburet C, Leclercq L, Cotte JF, Thiebaud J, Cottet H. Study of Interactions between Antigens and Polymeric Adjuvants in Vaccines by Frontal Analysis Continuous Capillary Electrophoresis. Biomacromolecules 2020; 21:3364-3373. [PMID: 32609507 DOI: 10.1021/acs.biomac.0c00782] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Vaccine adjuvants are used to enhance the immune response induced by antigens that have insufficient immunostimulatory capabilities. The present work aims at developing a frontal analysis continuous capillary electrophoresis (FACCE) methodology for the study of antigen-adjuvant interactions in vaccine products. After method optimization using three cationic model proteins, namely lysozyme, cytochrome c, and ribonuclease A, FACCE was successfully implemented to quantify the free antigen and thus to determine the interaction parameters (stoichiometry and binding constant) between an anionic polymeric adjuvant (polyacrylic acid, SPA09) and a cationic vaccine antigen in development for the treatment for Staphylococcus aureus. The influence of the ionic strength of the medium on the interactions was investigated. A strong dependence of the binding parameters with the ionic strength was observed. The concentration of the polymeric adjuvant was also found to significantly modify the ionic strength of the formulation, the extent of which could be estimated and corrected.
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Affiliation(s)
- Camille Malburet
- IBMM, University of Montpellier, CNRS, ENSCM, Montpellier, France.,Analytical Sciences, Sanofi Pasteur, 1541 Avenue Marcel Mérieux, Marcy-l'Étoile 69280, France
| | - Laurent Leclercq
- IBMM, University of Montpellier, CNRS, ENSCM, Montpellier, France
| | - Jean-François Cotte
- Analytical Sciences, Sanofi Pasteur, 1541 Avenue Marcel Mérieux, Marcy-l'Étoile 69280, France
| | - Jérôme Thiebaud
- Analytical Sciences, Sanofi Pasteur, 1541 Avenue Marcel Mérieux, Marcy-l'Étoile 69280, France
| | - Hervé Cottet
- IBMM, University of Montpellier, CNRS, ENSCM, Montpellier, France
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24
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25
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Conibear AC, Schmid A, Kamalov M, Becker CFW, Bello C. Recent Advances in Peptide-Based Approaches for Cancer Treatment. Curr Med Chem 2020; 27:1174-1205. [PMID: 29173146 DOI: 10.2174/0929867325666171123204851] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/26/2017] [Accepted: 10/30/2017] [Indexed: 12/16/2022]
Abstract
BACKGROUND Peptide-based pharmaceuticals have recently experienced a renaissance due to their ability to fill the gap between the two main classes of available drugs, small molecules and biologics. Peptides combine the high potency and selectivity typical of large proteins with some of the characteristic advantages of small molecules such as synthetic accessibility, stability and the potential of oral bioavailability. METHODS In the present manuscript we review the recent literature on selected peptide-based approaches for cancer treatment, emphasizing recent advances, advantages and challenges of each strategy. RESULTS One of the applications in which peptide-based approaches have grown rapidly is cancer therapy, with a focus on new and established targets. We describe, with selected examples, some of the novel peptide-based methods for cancer treatment that have been developed in the last few years, ranging from naturally-occurring and modified peptides to peptidedrug conjugates, peptide nanomaterials and peptide-based vaccines. CONCLUSION This review brings out the emerging role of peptide-based strategies in oncology research, critically analyzing the advantages and limitations of these approaches and the potential for their development as effective anti-cancer therapies.
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Affiliation(s)
- Anne C Conibear
- Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Wahringer Straße 38, 1090 Vienna, Austria
| | - Alanca Schmid
- Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Wahringer Straße 38, 1090 Vienna, Austria
| | - Meder Kamalov
- Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Wahringer Straße 38, 1090 Vienna, Austria
| | - Christian F W Becker
- Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Wahringer Straße 38, 1090 Vienna, Austria
| | - Claudia Bello
- Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Wahringer Straße 38, 1090 Vienna, Austria.,Department of Chemistry "Ugo Schiff", University of Florence, Laboratory of Peptide and Protein Chemistry and Biolology-PeptLab, Via della Lastruccia 13, 50019 Sesto, Fiorentino, Italy
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26
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Grandes Reyes CF, Chen SPR, Bobrin VA, Jia Z, Monteiro MJ. Temperature-Induced Formation of Uniform Polymer Nanocubes Directly in Water. Biomacromolecules 2020; 21:1700-1708. [PMID: 31914312 DOI: 10.1021/acs.biomac.9b01637] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Conventional self-assembly methods of block copolymers in cosolvents (i.e., usually water and organic solvents) has yet to produce a pure and monodisperse population of nanocubes. The requirement to assemble a nanocube is for the second block to have a high molecular weight. However, such high molecular weight block copolymers usually result in the formation of kinetically trapped nanostructures even with the addition of organic cosolvents. Here, we demonstrate the rapid production of well-defined polymer nanocubes directly in water by utilizing the thermoresponsive nature of the second block (with 263 monomer units), in which the block copolymer was fully water-soluble below its lower critical solution temperature (LCST) and would produce a pure population of nanocubes when heated above this temperature. Incorporating a pH-responsive monomer in the second block allowed us to control the size of the nanocubes in water with pH and the LCST of the block copolymer. We then used the temperature and pH responsiveness to create an adaptive system that changes morphology when using a unique fuel. This fuel (H2O2 + MnO2) is highly exothermic, and the solution pH increases with the consumption of H2O2. Initially, a nonequilibrium spherical nanostructure formed, which transformed over time into nanocubes, and by controlling the exotherm of the reaction, we controlled the time for this transformation. This block copolymer and the water-only method of self-assembly have provided some insights into designing biomimetic systems that can readily adapt to the environmental conditions.
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Affiliation(s)
| | - Sung-Po R Chen
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Valentin A Bobrin
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Zhongfan Jia
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Michael J Monteiro
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
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27
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Ferber S, Gonzalez RJ, Cryer AM, von Andrian UH, Artzi N. Immunology-Guided Biomaterial Design for Mucosal Cancer Vaccines. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1903847. [PMID: 31833592 DOI: 10.1002/adma.201903847] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/11/2019] [Indexed: 05/23/2023]
Abstract
Cancer of mucosal tissues is a major cause of worldwide mortality for which only palliative treatments are available for patients with late-stage disease. Engineered cancer vaccines offer a promising approach for inducing antitumor immunity. The route of vaccination plays a major role in dictating the migratory pattern of lymphocytes, and thus vaccine efficacy in mucosal tissues. Parenteral immunization, specifically subcutaneous and intramuscular, is the most common vaccination route. However, this induces marginal mucosal protection in the absence of tissue-specific imprinting signals. To circumvent this, the mucosal route can be utilized, however degradative mucosal barriers must be overcome. Hence, vaccine administration route and selection of materials able to surmount transport barriers are important considerations in mucosal cancer vaccine design. Here, an overview of mucosal immunity in the context of cancer and mucosal cancer clinical trials is provided. Key considerations are described regarding the design of biomaterial-based vaccines that will afford antitumor immune protection at mucosal surfaces, despite limited knowledge surrounding mucosal vaccination, particularly aided by biomaterials and mechanistic immune-material interactions. Finally, an outlook is given of how future biomaterial-based mucosal cancer vaccines will be shaped by new discoveries in mucosal vaccinology, tumor immunology, immuno-therapeutic screens, and material-immune system interplay.
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Affiliation(s)
- Shiran Ferber
- Department of Medicine, Engineering in Medicine Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Rodrigo J Gonzalez
- Department of Immunology, Harvard Medical School, Boston, MA, 02115, USA
| | - Alexander M Cryer
- Department of Medicine, Engineering in Medicine Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Ulrich H von Andrian
- Department of Immunology, Harvard Medical School, Boston, MA, 02115, USA
- The Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology, and Harvard, Boston, MA, 02139, USA
| | - Natalie Artzi
- Department of Medicine, Engineering in Medicine Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, 02139, USA
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, China
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Shen Y, Hu Y, Qiu L. Nano-vesicles based on phospholipid-like amphiphilic polyphosphazenes to orally deliver ovalbumin antigen for evoking anti-tumor immune response. Acta Biomater 2020; 106:267-277. [PMID: 32058081 DOI: 10.1016/j.actbio.2020.02.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 02/05/2020] [Accepted: 02/07/2020] [Indexed: 10/25/2022]
Abstract
Aimed at evoking an adequate anti-tumor immune response via oral administration route, this study constructed functionally and structurally mimicking-bacteria-membrane (MBM) nano-vesicle (RGD-PEOP) to orally deliver ovalbumin (OVA) antigen. In terms of simulating bacterial membrane structure, we creatively designed this nano-vesicle to have phospholipid-like octadecylphosphoethanolamine groups in vesicle membrane to improve OVA loading by means of specific interactions including salt bridge and hydrogen bond interaction. For simulating bacterial membrane function, the RGD peptide was modified onto the nano-vesicle surface, and the resulting vector displayed a good transport ability with a 3.4-fold higher than free OVA. In vitro and in vivo assay showed that the expression of co-stimulatory molecules and MHC class II complexes was significantly enhanced by MBM nano-vesicle. IFN-γ and IL-4 levels also increased several folds in the MBM nano-vesicle group. Consequently, MBM nano-vesicle achieved the highest in vivo inhibition rate of 69% against E.G7-OVA tumors among all the oral groups. These results suggest that this MBM nano-vesicle may be a promising vector to orally deliver OVA antigen for cancer immunotherapy. STATEMENT OF SIGNIFICANCE: Developing an effective non-bacterial carrier for oral cancer immunotherapy remains challenging. This work constructed a mimicking-bacteria-membrane nano-vesicle based on phospholipid-like amphiphilic polyphosphazenes for oral delivery of ovalbumin antigen. With the considerable capability to load ovalbumin antigen and target M cells, the nano-vesicle produced remarkable tumor suppression in vivo by evoking anti-tumor immune response.
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29
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Tsoras AN, Champion JA. Protein and Peptide Biomaterials for Engineered Subunit Vaccines and Immunotherapeutic Applications. Annu Rev Chem Biomol Eng 2020; 10:337-359. [PMID: 31173518 DOI: 10.1146/annurev-chembioeng-060718-030347] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Although vaccines have been the primary defense against widespread infectious disease for decades, there is a critical need for improvement to combat complex and variable diseases. More control and specificity over the immune response can be achieved by using only subunit components in vaccines. However, these often lack sufficient immunogenicity to fully protect, and conjugation or carrier materials are required. A variety of protein and peptide biomaterials have improved effectiveness and delivery of subunit vaccines for infectious, cancer, and autoimmune diseases. They are biodegradable and have control over both material structure and immune function. Many of these materials are built from naturally occurring self-assembling proteins, which have been engineered for incorporation of vaccine components. In contrast, others are de novo designs of structures with immune function. In this review, protein biomaterial design, engineering, and immune functionality as vaccines or immunotherapies are discussed.
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Affiliation(s)
- Alexandra N Tsoras
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-2000, USA;
| | - Julie A Champion
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-2000, USA;
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30
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Larijani MS, Ramezani A, Sadat SM. Updated Studies on the Development of HIV Therapeutic Vaccine. Curr HIV Res 2020; 17:75-84. [PMID: 31210114 DOI: 10.2174/1570162x17666190618160608] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/29/2019] [Accepted: 05/30/2019] [Indexed: 01/17/2023]
Abstract
BACKGROUND Among the various types of pharmaceuticals, vaccines have a special place. However, in the case of HIV, nearly after 40 years of its discovery, an effective vaccine still is not available. The reason lies in several facts mainly the variability and smartness of HIV as well as the complexity of the interaction between HIV and immune responses. A robust, effective, and longterm immunity is undoubtedly what a successful preventive vaccine should induce in order to prevent the infection of HIV. Failure of human trials to this end has led to the idea of developing therapeutic vaccines with the purpose of curing already infected patients by boosting their immune responses against the virus. Nevertheless, the exceptional ability of the virus to escape the immune system based on the genetically diverse envelope and variable protein products have made it difficult to achieve an efficient therapeutic vaccine. OBJECTIVE We aimed at studying and comparing different approaches to HIV therapeutic vaccines. METHODS In this review, we summarized the human trials undergoing on HIV therapeutic vaccination which are registered in the U.S. clinical trial database (clinicaltrials.gov). These attempts are divided into different tables, according to the type of formulation and application in order to classify and compare their results. RESULT/CONCLUSION Among several methods applied in studied clinical trials which are mainly divided into DNA, Protein, Peptide, Viral vectors, and Dendritic cell-based vaccines, protein vaccine strategy is based on Tat protein-induced anti-Tat Abs in 79% HIV patients. However, the studies need to be continued to achieve a durable efficient immune response against HIV-1.
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Affiliation(s)
- Mona Sadat Larijani
- Hepatitis, AIDS, and Bloodborne Diseases Department, Pasteur Institute of Iran, Tehran, Iran
| | - Amitis Ramezani
- Hepatitis, AIDS, and Bloodborne Diseases Department, Pasteur Institute of Iran, Tehran, Iran
| | - Seyed Mehdi Sadat
- Hepatitis, AIDS, and Bloodborne Diseases Department, Pasteur Institute of Iran, Tehran, Iran
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Iqbal Z, Dilnawaz F. Nanocarriers For Vaginal Drug Delivery. ACTA ACUST UNITED AC 2020; 13:3-15. [PMID: 30767755 DOI: 10.2174/1872211313666190215141507] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 02/06/2019] [Accepted: 02/06/2019] [Indexed: 01/22/2023]
Abstract
BACKGROUND Vaginal drug delivery approach represents one of the imperative strategies for local and systemic delivery of drugs. The peculiar dense vascular networks, mucus permeability, and range of physiological characteristics of the vaginal cavity have been exploited for therapeutic benefit. Furthermore, the vaginal drug delivery has been curtailed due to the influence of different physiological factors like acidic pH, constant cervical secretion, microflora, cyclic changes during periods along with turnover of mucus of varying thickness. OBJECTIVE This review highlights advancement of nanomedicine and its prospective progress towards the clinic. METHODS Relevant literature reports and patents related to topics are retrieved and used. RESULT The extensive literature search and patent revealed that nanocarriers are efficacious over conventional treatment approaches. CONCLUSION Recently, nanotechnology based drug delivery approach has promised better therapeutic outcomes by providing enhanced permeation and sustained drug release activity. Different nanoplatforms based on drugs, peptides, proteins, antigens, hormones, nucleic material, and microbicides are gaining momentum for vaginal therapeutics.
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Affiliation(s)
- Zeenat Iqbal
- Nanomedicine Laboratory, Department of Pharmaceutics, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi-110062, India
| | - Fahima Dilnawaz
- Laboratory of Nanomedicine, Institute of Life Sciences, Nalco Square, Bhubaneswar -751023, Odisha, India
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Faruck MO, Zhao L, Hussein WM, Khalil ZG, Capon RJ, Skwarczynski M, Toth I. Polyacrylate-Peptide Antigen Conjugate as a Single-Dose Oral Vaccine against Group A Streptococcus. Vaccines (Basel) 2020; 8:E23. [PMID: 31941060 PMCID: PMC7157655 DOI: 10.3390/vaccines8010023] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/08/2020] [Accepted: 01/09/2020] [Indexed: 12/15/2022] Open
Abstract
Group A Streptococcus (GAS)-associated rheumatic heart disease is a leading cause of death caused by GAS infection. While antibiotics can treat the infection in most cases, growing antibiotic resistance, late medical intervention, and recurrent infection are major obstacles to the effective treatment of GAS-associated diseases. As GAS infection typically originates from the bacterial colonization of mucosal tissue in the throat, an oral vaccine that can generate both systemic and mucosal immune responses would solve problems associated with traditional medical interventions. Moreover, orally delivered vaccines are more easily administered and less expensive for mass immunization. In this study, the B-cell epitope J8, derived from GAS M protein, and universal T-helper Pan HLA-DR-binding epitope peptide (PADRE), were conjugated to poly (methyl acrylate) (PMA) to form a self-assembled nanoparticle vaccine candidate (PMA-P-J8). Strong systemic and mucosal immune responses were induced upon single oral immunization of mice with the conjugate. The antibodies generated were opsonic against GAS clinical isolates as measured after boost immunization. Thus, we developed a simple conjugate as an effective, adjuvant-free oral peptide-based vaccine.
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Affiliation(s)
- Mohammad Omer Faruck
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia; (M.O.F.); (L.Z.); (W.M.H.)
| | - Lili Zhao
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia; (M.O.F.); (L.Z.); (W.M.H.)
| | - Waleed M. Hussein
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia; (M.O.F.); (L.Z.); (W.M.H.)
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Helwan 11795, Egypt
| | - Zeinab G. Khalil
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia; (Z.G.K.); (R.J.C.)
| | - Robert J. Capon
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia; (Z.G.K.); (R.J.C.)
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia; (M.O.F.); (L.Z.); (W.M.H.)
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia; (M.O.F.); (L.Z.); (W.M.H.)
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia; (Z.G.K.); (R.J.C.)
- School of Pharmacy, The University of Queensland, Woolloongabba, Brisbane, QLD 4102, Australia
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Forner M, Defaus S, Andreu D. Peptide-Based Multiepitopic Vaccine Platforms via Click Reactions. J Org Chem 2019; 85:1626-1634. [PMID: 31782300 DOI: 10.1021/acs.joc.9b02798] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Multimeric antigen display and high overall valency are increasingly regarded as strategic goals for potent and broadly efficacious synthetic vaccines with potential market prospects. Herein, a modular and versatile approach to multifunctional peptide-based vaccine platforms at multimilligram scale in reasonable yields is reported. Preparation of chemoselectively modified peptide building blocks of medium-to-large size, conjugation of these subunits, and final assembly were achieved by a combination of Michael-type thiol-ene addition and copper(I)-mediated alkyne-azide cycloaddition. The size and structural complexity of the building blocks required exploration of a further level of orthogonality, namely furan/maleimide Diels-Alder chemistry. After process optimization, a finely tuned, stepwise click approach has emerged as a workable, on-demand strategy to create macromolecular therapeutic vaccine assemblies.
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Affiliation(s)
- Mar Forner
- Department of Experimental and Health Science , Pompeu Fabra University , Barcelona Biomedical Research Park, 08003 Barcelona , Spain
| | - Sira Defaus
- Department of Experimental and Health Science , Pompeu Fabra University , Barcelona Biomedical Research Park, 08003 Barcelona , Spain
| | - David Andreu
- Department of Experimental and Health Science , Pompeu Fabra University , Barcelona Biomedical Research Park, 08003 Barcelona , Spain
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Glass EB, Masjedi S, Dudzinski SO, Wilson AJ, Duvall CL, Yull FE, Giorgio TD. Optimizing Mannose "Click" Conjugation to Polymeric Nanoparticles for Targeted siRNA Delivery to Human and Murine Macrophages. ACS OMEGA 2019; 4:16756-16767. [PMID: 31646220 PMCID: PMC6796989 DOI: 10.1021/acsomega.9b01465] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 09/19/2019] [Indexed: 06/09/2023]
Abstract
"Smart", dual pH-responsive, and endosomolytic polymeric nanoparticles have demonstrated great potential for localized drug delivery, especially for siRNA delivery to the cytoplasm of cells. However, targeted delivery to a specific cell phenotype requires an additional level of functionality. Copper-catalyzed azide-alkyne cycloaddition (CuAAC) is a highly selective bioconjugation reaction that can be performed in conjunction with other polymerization techniques without adversely affecting reaction kinetics, but there exists some concern for residual copper causing cytotoxicity. To alleviate these concerns, we evaluated conjugation efficiency, residual copper content, and cell viability in relation to copper catalyst concentration. Our results demonstrated an optimal range for minimizing cytotoxicity while maintaining high levels of conjugation efficiency, and these conditions produced polymers with increased targeting to M2-polarized macrophages, as well as successful delivery of therapeutic siRNA that reprogrammed the macrophages to a proinflammatory phenotype.
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Affiliation(s)
- Evan B Glass
- Department of Biomedical Engineering, Vanderbilt University, 5824 Stevenson Center, Nashville, Tennessee 37232, United States
| | - Shirin Masjedi
- Department of Biomedical Engineering, Vanderbilt University, 5824 Stevenson Center, Nashville, Tennessee 37232, United States
| | - Stephanie O Dudzinski
- Department of Biomedical Engineering, Vanderbilt University, 5824 Stevenson Center, Nashville, Tennessee 37232, United States
| | - Andrew J Wilson
- Department of Obstetrics & Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
| | - Craig L Duvall
- Department of Biomedical Engineering, Vanderbilt University, 5824 Stevenson Center, Nashville, Tennessee 37232, United States
| | - Fiona E Yull
- Department of Pharmacology and Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37232, United States
- Department of Obstetrics & Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
| | - Todd D Giorgio
- Department of Biomedical Engineering, Vanderbilt University, 5824 Stevenson Center, Nashville, Tennessee 37232, United States
- Department of Pharmacology and Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37232, United States
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35
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Conte C, Moret F, Esposito D, Dal Poggetto G, Avitabile C, Ungaro F, Romanelli A, Laurienzo P, Reddi E, Quaglia F. Biodegradable nanoparticles exposing a short anti-FLT1 peptide as antiangiogenic platform to complement docetaxel anticancer activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:876-886. [DOI: 10.1016/j.msec.2019.04.054] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/27/2019] [Accepted: 04/18/2019] [Indexed: 12/20/2022]
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Shae D, Baljon JJ, Wehbe M, Becker KW, Sheehy TL, Wilson JT. At the bench: Engineering the next generation of cancer vaccines. J Leukoc Biol 2019; 108:1435-1453. [PMID: 31430398 DOI: 10.1002/jlb.5bt0119-016r] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 06/29/2019] [Accepted: 07/25/2019] [Indexed: 12/12/2022] Open
Abstract
Cancer vaccines hold promise as an immunotherapeutic modality based on their potential to generate tumor antigen-specific T cell responses and long-lived antitumor responses capable of combating metastatic disease and recurrence. However, cancer vaccines have historically failed to deliver significant therapeutic benefit in the clinic, which we maintain is due in part to drug delivery challenges that have limited vaccine immunogenicity and efficacy. In this review, we examine some of the known and putative failure mechanisms of common first-generation clinical cancer vaccines, and describe how the rational design of materials engineered for vaccine delivery and immunomodulation can address these shortcomings. First, we outline vaccine design principles for augmenting cellular immunity to tumor antigens and describe how well-engineered materials can improve vaccine efficacy, highlighting recent innovations in vaccine delivery technology that are primed for integration into neoantigen vaccine development pipelines. We also discuss the importance of sequencing, timing, and kinetics in mounting effective immune responses to cancer vaccines, and highlight examples of materials that potentiate antitumor immunity through spatiotemporal control of immunomodulation. Furthermore, we describe several engineering strategies for improving outcomes of in situ cancer vaccines, which leverage local, intratumoral delivery to stimulate systemic immunity. Finally, we highlight recent innovations leveraging nanotechnology for increasing the immunogenicity of the tumor microenvironment (TME), which is critical to enhancing tumor infiltration and function of T cells elicited in response to cancer vaccines. These immunoengineering strategies and tools complement ongoing advances in cancer vaccines as they reemerge as an important component of the immunotherapeutic armamentarium.
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Affiliation(s)
- Daniel Shae
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Jessalyn J Baljon
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Mohamed Wehbe
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Kyle W Becker
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Taylor L Sheehy
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - John Tanner Wilson
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee, USA.,Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA.,Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee, USA.,Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, Nashville, Tennessee, USA.,Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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37
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Nevagi RJ, Dai W, Khalil ZG, Hussein WM, Capon RJ, Skwarczynski M, Toth I. Structure-activity relationship of group A streptococcus lipopeptide vaccine candidates in trimethyl chitosan-based self-adjuvanting delivery system. Eur J Med Chem 2019; 179:100-108. [PMID: 31247372 DOI: 10.1016/j.ejmech.2019.06.047] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/17/2019] [Accepted: 06/17/2019] [Indexed: 10/26/2022]
Abstract
Synthetic peptide vaccines based on epitopes derived from the conserved region of M-protein are proving to be a realistic option for protection against group A streptococcus (GAS). However, peptide epitopes alone are poorly immunogenic due to lack of pathogen-associated structural patterns. Therefore, we developed a GAS peptide vaccine based on combined lipidic TLR 2 agonist and self-adjuvanting polymers. We synthesized three α-poly-l-glutamic acid (PGA) conjugated lipopeptides composed of 2-amino-d,l-hexadecanoic acid, GAS B-cell peptide epitope J8 (QAEDKVKQSREAKKQVEKALKQLEDKVQ) and universal T-helper epitope PADRE (AKFVAAWTLKAAA) in different spatial arrangements. The anionic lipopeptide conjugates formed nanoparticles via ionic-complexation with a cationic polymer, trimethyl chitosan (TMC). We demonstrated that the spatial arrangement of vaccine components has a significant influence on peptide conformation and particle formation and, as such, contributes to the differential efficacy and opsonin-mediated killing potential of nanovaccines. Nanoparticles carrying branched helical lipopeptide with T-helper epitope on free N-termini (NP3) stimulated the most potent humoral immune responses. Lipopeptides without TMC (LP1-LP3) and TMC nanoparticles of peptide alone (without lipid) NP (P1) were poor inducers of antibody production, indicating that both TMC and lipid are required to induce a strong opsonic immune response.
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Affiliation(s)
- Reshma J Nevagi
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Wei Dai
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Zeinab G Khalil
- Institute for Molecular Biosciences, The University of Queensland, St. Lucia, QLD, 4072, Australia; Diamantina Institute, The University of Queensland, Woolloongabba, QLD, 4102, Australia
| | - Waleed M Hussein
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, 4072, Australia; Helwan University, Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Ein Helwan, Helwan, 11795, Egypt
| | - Robert J Capon
- Institute for Molecular Biosciences, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, 4072, Australia.
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, 4072, Australia; Institute for Molecular Biosciences, The University of Queensland, St. Lucia, QLD, 4072, Australia; School of Pharmacy, The University of Queensland, Woolloongabba, QLD, 4102, Australia
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39
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Wen R, Umeano AC, Kou Y, Xu J, Farooqi AA. Nanoparticle systems for cancer vaccine. Nanomedicine (Lond) 2019; 14:627-648. [PMID: 30806568 PMCID: PMC6439506 DOI: 10.2217/nnm-2018-0147] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 11/28/2018] [Indexed: 01/01/2023] Open
Abstract
As effective tools for public health, vaccines prevent disease by priming the body's adaptive and innate immune responses against an infection. Due to advances in understanding cancers and their relationship with the immune system, there is a growing interest in priming host immune defenses for a targeted and complete antitumor response. Nanoparticle systems have shown to be promising tools for effective antigen delivery as vaccines and/or for potentiating immune response as adjuvants. Here, we highlight relevant physiological processes involved in vaccine delivery, review recent advances in the use of nanoparticle systems for vaccines and discuss pertinent challenges to viably translate nanoparticle-based vaccines and adjuvants for public use.
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Affiliation(s)
- Ru Wen
- Department of Chemistry, University of Georgia, Athens, GA 30602, USA
| | - Afoma C Umeano
- Department of Molecular & Cellular Pharmacology, University of Miami, Miller School of Medicine, Miami, FL 33136, USA
| | - Yi Kou
- Department of Molecular & Computational Biology, University of Southern California, Los Angeles, CA 90089, USA
| | - Jian Xu
- Laboratory of Cancer Biology & Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA
| | - Ammad Ahmad Farooqi
- Institute of Biomedical and Genetic Engineering (IBGE), Islamabad, 54000, Pakistan
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40
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Yang Y, Che Y, Zhao Y, Wang X. Prevention and treatment of cervical cancer by a single administration of human papillomavirus peptide vaccine with CpG oligodeoxynucleotides as an adjuvant in vivo. Int Immunopharmacol 2019; 69:279-288. [PMID: 30743204 DOI: 10.1016/j.intimp.2019.01.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/10/2019] [Accepted: 01/15/2019] [Indexed: 12/11/2022]
Abstract
No licensed therapeutic human papillomavirus (HPV) vaccine is currently available, so it remains a high priority to develop a therapeutic HPV vaccine or prophylactic/therapeutic HPV vaccine for cervical cancer. In this current study, we designed an HPV vaccine including CpG oligodeoxynucleotides 1826 as an adjuvant and HPV16 E7 43-77 peptide as antigen, which contains a CD8 T cell epitope (E7 49-57), and two CD4 T cell epitopes (E7 43-77 and E7 50-62). The prophylactic and therapeutic effect on cervical cancer induced by a single administration of vaccine, were comprehensively evaluated by examining the tumor size and the percentage of tumor-free/bearing mice. The cellular immunity and modulation of immunosuppressive cells induced by the vaccine were evaluated by examining intracellular cytokine staining (ICS) of splenocytes and FCM, respectively. Antigen-specific cytotoxic T-lymphocyte (CTL) responses were investigated using in vivo cytolytic assay. The results showed that the single administration of vaccine elicited significant prophylactic as well as therapeutic effect on cervical cancer. The increased cellular immunity mediated by CD4 + IFN-γ + T cells and CD8 + IFN-γ + T cells, and the decreased numbers of immunosuppressive cells including regulatory T cells (Tregs) and myeloid-derived suppressor cells (MDSCs) were induced by the vaccine. Antigen-specific CTL response was also induced by vaccination. These findings suggested that significant anti-tumor effect of the vaccine may result from the induction of increased cellular immunity and decreased immunosuppressive cells.
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Affiliation(s)
- Yang Yang
- Department of Microbiology and Parasitology, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Yuxin Che
- Department of Microbiology and Parasitology, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Yan Zhao
- Department of Pharmaceutics, School of Pharmacy, China Medical University, Shenyang, China
| | - Xuelian Wang
- Department of Microbiology and Parasitology, College of Basic Medical Sciences, China Medical University, Shenyang, China.
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41
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Toth I, Khongkow M, Liu TY, Bartlett S, Hussein WM, Nevagi R, Jia Z, Monteiro MJ, Wells J, Ruktanonchai UR, Skwarczynski M. Liposomal formulation of polyacrylate-peptide conjugate as a new vaccine candidate against cervical cancer. PRECISION NANOMEDICINE 2018. [DOI: 10.33218/prnano1(3).181003.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Peptide-based vaccines have been proposed as a therapeutic strategy for many infectious diseases, including human papilloma virus (HPV)-related cervical cancer. Peptide-based vaccines are a better treatment option than traditional chemotherapeutic agents and surgery, as they rely on the use of the body’s immune system to fight cancer cells, resulting in minimal risk of side effects. However, to increase the efficacy of peptide-based vaccines, the application of potent adjuvant and a suitable delivery system is essential. In this study, we developed a self-adjuvanting delivery system based on a combination of polymer and liposomes, for a therapeutic vaccine against cervical cancer. Peptide epitope (8Qm) derived from HPV-16 E7 protein was conjugated to dendritic poly(tert-butyl acrylate) as a primary delivery system and incorporated into cationic liposomes, which served as a secondary delivery system. Our vaccine candidate was able to kill established HPV-16 E7-positive tumor (TC-1) cells in mice following a single immunization. The immunized mice had 80% survival rate after two months. In contrast, both polymer-8Qm conjugate and liposomes bearing 8Qm failed to eradicate TC-1 tumors. The survival rate of mice was only 20% when immunized with 8Qm formulated with standard incomplete Freund’s adjuvant.
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Mhlwatika Z, Aderibigbe BA. Application of Dendrimers for the Treatment of Infectious Diseases. Molecules 2018; 23:E2205. [PMID: 30200314 PMCID: PMC6225509 DOI: 10.3390/molecules23092205] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 06/14/2018] [Accepted: 06/15/2018] [Indexed: 01/14/2023] Open
Abstract
Dendrimers are drug delivery systems that are characterized by a three-dimensional, star-shaped, branched macromolecular network. They possess ideal properties such as low polydispersity index, biocompatibility and good water solubility. They are made up of the interior and the exterior layers. The exterior layer consists of functional groups that are useful for conjugation of drugs and targeting moieties. The interior layer exhibits improved drug encapsulation efficiency, reduced drug toxicity, and controlled release mechanisms. These unique properties make them useful for drug delivery. Dendrimers have attracted considerable attention as drug delivery system for the treatment of infectious diseases. The treatment of infectious diseases is hampered severely by drug resistance. Several properties of dendrimers such as their ability to overcome drug resistance, toxicity and control the release mechanism of the encapsulated drugs make them ideal systems for the treatment of infectious disease. The aim of this review is to discuss the potentials of dendrimers for the treatment of viral and parasitic infections.
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Affiliation(s)
- Zandile Mhlwatika
- Department of Chemistry, University of Fort Hare, Alice Campus, Eastern Cape 5700, South Africa.
| | - Blessing Atim Aderibigbe
- Department of Chemistry, University of Fort Hare, Alice Campus, Eastern Cape 5700, South Africa.
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43
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Gu W, Bobrin VA, Chen SPR, Wang Z, Schoning JP, Gu Y, Chen W, Chen M, Jia Z, Monteiro MJ. Biodistribution of PNIPAM-Coated Nanostructures Synthesized by the TDMT Method. Biomacromolecules 2018; 20:625-634. [DOI: 10.1021/acs.biomac.8b01196] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Wenyi Gu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane Queensland 4072, Australia
| | - Valentin A. Bobrin
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane Queensland 4072, Australia
| | - Sung-Po R. Chen
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane Queensland 4072, Australia
| | - Zhao Wang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane Queensland 4072, Australia
| | - Jennifer P. Schoning
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane Queensland 4072, Australia
| | - Yushu Gu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane Queensland 4072, Australia
| | - Weiyu Chen
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane Queensland 4072, Australia
| | - Mingshui Chen
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane Queensland 4072, Australia
- Laboratory of Immuno-Oncology, Department of Medical Oncology, Fujian Provincial Cancer Hospital and Institute, Fuzhou 350014, China
- Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou 350014, China
| | - Zhongfan Jia
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane Queensland 4072, Australia
| | - Michael J. Monteiro
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane Queensland 4072, Australia
- School of Chemical and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
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44
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Affiliation(s)
- Xuedan He
- University at Buffalo; State University of New York; Buffalo NY 14260 USA
| | - Scott I. Abrams
- Roswell Park Comprehensive Cancer Center; Department of Immunology; Buffalo NY 14263 USA
| | - Jonathan F. Lovell
- University at Buffalo; State University of New York; Buffalo NY 14260 USA
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Abstract
Infectious diseases caused by germs, parasites, fungi, virus and bacteria are one of the leading causes of death worldwide. Polymeric therapeutics are nanomedicines that offer several advantages making them useful for the treatment of infectious diseases such as targeted drug release mechanism, ability to maintain the drug concentration within a therapeutic window for a desired duration, biocompatibility with low immunogenicity and reduced drug toxicity resulting in enhanced therapeutic efficacy of the incorporated drug. Although polymeric therapeutics have been evaluated for the treatment of infectious diseases in vitro and in vivo with improved therapeutic efficacy, most treatments for infectious disease have not been evaluated using polymeric therapeutics. This review will focus on the applications of polymeric therapeutics for the treatment of infectious diseases (preclinical studies and clinical trials), with particular focus on parasitic and viral infections.
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46
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Abstract
AIM Peptide-based vaccines are designed to carry the minimum required antigen to trigger the desired immune responses; however, they are usually poorly immunogenic and require appropriate delivery system. RESULTS Peptides, B-cell epitope (J14) derived from group A streptococcus M-protein and universal T-helper (PADRE) epitope, were conjugated to a variety of linear and branched polyacrylates. All produced conjugates formed submicron-sized particles and induced a high level of IgG titres in mice after subcutaneous immunization. These polymer-peptide conjugates demonstrated high opsonization capacity against group A streptococcus clinical isolates. CONCLUSION We have successfully demonstrated that submicron-sized polymer-peptide conjugates were capable of inducing strong humoral immune responses after single immunization.
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47
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M. Hussein W, M. Choi P, Zhang C, Sierecki E, Johnston W, Jia Z, J. Monteiro M, Skwarczynski M, Gambin Y, Toth I. Investigating the affinity of poly tert-butyl acrylate toward Toll-Like Receptor 2. AIMS ALLERGY AND IMMUNOLOGY 2018. [DOI: 10.3934/allergy.2018.3.141] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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48
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Edwards-Gayle CJC, Greco F, Hamley IW, Rambo RP, Reza M, Ruokolainen J, Skoulas D, Iatrou H. Self-Assembly of Telechelic Tyrosine End-Capped PEO Star Polymers in Aqueous Solution. Biomacromolecules 2017; 19:167-177. [DOI: 10.1021/acs.biomac.7b01420] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | - Francesca Greco
- School of Chemistry, Food
Biosciences and Pharmacy, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Ian W. Hamley
- School of Chemistry, Food
Biosciences and Pharmacy, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Robert P. Rambo
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, U.K
| | - Mehedi Reza
- Department of Applied Physics, Aalto School of Science, P.O. Box 15100, FI-00076 Aalto, Finland
| | - Janne Ruokolainen
- Department of Applied Physics, Aalto School of Science, P.O. Box 15100, FI-00076 Aalto, Finland
| | - Dimitrios Skoulas
- Department of Chemistry, University of Athens, Panepistimiopolis
Zografou, 157 71 Athens, Greece
| | - Hermis Iatrou
- Department of Chemistry, University of Athens, Panepistimiopolis
Zografou, 157 71 Athens, Greece
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Gammon JM, Dold NM, Jewell CM. Improving the clinical impact of biomaterials in cancer immunotherapy. Oncotarget 2017; 7:15421-43. [PMID: 26871948 PMCID: PMC4941251 DOI: 10.18632/oncotarget.7304] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 01/29/2016] [Indexed: 12/20/2022] Open
Abstract
Immunotherapies for cancer have progressed enormously over the past few decades, and hold great promise for the future. The successes of these therapies, with some patients showing durable and complete remission, demonstrate the power of harnessing the immune system to eradicate tumors. However, the effectiveness of current immunotherapies is limited by hurdles ranging from immunosuppressive strategies employed by tumors, to inadequate specificity of existing therapies, to heterogeneity of disease. Further, the vast majority of approved immunotherapies employ systemic delivery of immunomodulators or cells that make addressing some of these challenges more difficult. Natural and synthetic biomaterials–such as biocompatible polymers, self-assembled lipid particles, and implantable biodegradable devices–offer unique potential to address these hurdles by harnessing the benefits of therapeutic targeting, tissue engineering, co-delivery, controlled release, and sensing. However, despite the enormous investment in new materials and nanotechnology, translation of these ideas to the clinic is still an uncommon outcome. Here we review the major challenges facing immunotherapies and discuss how the newest biomaterials and nanotechnologies could help overcome these challenges to create new clinical options for patients.
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Affiliation(s)
- Joshua M Gammon
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
| | - Neil M Dold
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
| | - Christopher M Jewell
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA.,Department of Microbiology and Immunology, University of Maryland Medical School, Baltimore, MD, USA.,Marlene and Stewart Greenebaum Cancer Center, Baltimore, MD, USA
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Jiang B, Yang J, Rahoui N, Taloub N, Huang YD. Functional polymer materials affecting cell attachment. Adv Colloid Interface Sci 2017; 250:185-194. [PMID: 28950985 DOI: 10.1016/j.cis.2017.09.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 07/26/2017] [Accepted: 09/07/2017] [Indexed: 01/13/2023]
Abstract
This review discusses the functional polymer materials effect on the cell adhesion. The applied polymer materials for the cell adhesion purpose was prepared based on organic fibers and biocompatible hydrogel. On the other hand, the active peptides are incorporated into the polymer materials substrate via the cysteine-containing peptides and N-hydroxysuccinimide-active group. Cancer cells and normal cells were presented for the selective adhesion via the introduced polymer materials substrate containing active peptides including Arginine-Glycine-Aspartic and Isoleucine-Lysine-Valine-Alanine-Valine sequence peptides. This selectivity is revealed by a significant cooperativity between specific and non-specific cell adhesion. This study is of a great impact for the design of the polymeric structures for cell attachment.
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Affiliation(s)
- Bo Jiang
- Polymer Materials and Engineering Department, School of Chemical Engineering and Technology, Harbin Institute of Technology, P.O. Box: 1254, Harbin 150001, People's Republic of China.
| | - Jian Yang
- Polymer Materials and Engineering Department, School of Chemical Engineering and Technology, Harbin Institute of Technology, P.O. Box: 1254, Harbin 150001, People's Republic of China
| | - Nahla Rahoui
- Polymer Materials and Engineering Department, School of Chemical Engineering and Technology, Harbin Institute of Technology, P.O. Box: 1254, Harbin 150001, People's Republic of China
| | - Nadia Taloub
- Polymer Materials and Engineering Department, School of Chemical Engineering and Technology, Harbin Institute of Technology, P.O. Box: 1254, Harbin 150001, People's Republic of China
| | - Yu Dong Huang
- Polymer Materials and Engineering Department, School of Chemical Engineering and Technology, Harbin Institute of Technology, P.O. Box: 1254, Harbin 150001, People's Republic of China
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