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Author: Rajko Reljic
Publisher: Frontiers Media SA
ISBN: 2889633276
Category :
Languages : en
Pages : 229
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Book Description
Author: Rajko Reljic
Publisher: Frontiers Media SA
ISBN: 2889633276
Category :
Languages : en
Pages : 229
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Book Description
Author: Mariusz Skwarczynski
Publisher: William Andrew
ISBN: 0323400299
Category : Medical
Languages : en
Pages : 462
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Book Description
This book provides a comprehensive overview of how use of micro- and nanotechnology (MNT) has allowed major new advance in vaccine development research, and the challenges that immunologists face in making further progress. MNT allows the creation of particles that exploit the inherent ability of the human immune system to recognize small particles such as viruses and toxins. In combination with minimal protective epitope design, this permits the creation of immunogenic particles that stimulate a response against the targeted pathogen. The finely tuned response of the human immune system to small particles makes it unsurprising that many of the lead adjuvants and vaccine delivery systems currently under investigation are based on nanoparticles. Provides a comprehensive and unparalleled overview of the role of micro- and nanotechnology in vaccine development Allows researchers to quickly familiarize themselves with the broad spectrum of vaccines and how micro- and nanotechnologies are applied to their development Includes a combination of overview chapters setting out general principles, and focused content dealing with specific vaccines, making it useful to readers from a variety of disciplines
Author: Pamela Antonia Basto
Publisher:
ISBN:
Category :
Languages : en
Pages : 120
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Book Description
Vaccines have revolutionized medicine by increasing the life expectancy of children and substantially decreasing the morbidity of multiple infectious diseases worldwide. Over several decades, we have acquired significant gains in the understanding of the underlying mechanisms involved in developing protective immunity, yet vaccine development has progressed comparatively slowly. This thesis serves to explore two polymeric nanoparticle platforms to demonstrate the therapeutic potential of synthetic nanocarriers as vaccines with the aim of 1) providing greater spatiotemporal release of small molecule adjuvant to secondary lymphoid sites and 2) providing a tunable surface for loading B cell antigen epitopes in a specific conformation to drive epitope-specific antibody response. In recent decades, TLR mechanisms have been elucidated and novel agonists have been developed, yet our generation still has not seen paramount progress in the clinical translation of these agonists due to risks of systemic toxicity and off target effects. In the first section, we synthesized 223±18 nm poly(lactic-co-glycolic acid)- poly(ethylene glycol)/ poly(lactic acid)-R848 (PLGA-PEG/PLA-R848) nanoparticle vaccine that is designed to deliver a combination of antigen and control release of a small molecule adjuvant R848 (tl/2= 42 hours) to drive a potent antigen-specific immune response. Using ovalbumin as a model protein, this vaccine is able to enhance antigen presentation and co-stimulatory molecules on dendritic cells and subsequently enhanced proliferation of antigen-specific naive CD8+ cells in vitro. Upon vaccination, our delivery system is able to increase cell-mediated and humoral response in comparison to its soluble form, thereby illustrating the potential to bring novel small molecule adjuvants to the clinics. In the second section, we developed a nanoparticle vaccine platform that allows selective orientation of peptide epitopes to enhance B cell response in an application that has therapeutic potential for treatment for cardiovascular disease (CVD). Utilizing epitopes discovered through in silico modeling for human PCSK9, a plasma protein that plays an important role in LDL cholesterol (LDL-c) levels in the blood, our nanoparticle allows selective orientation through biotin-streptavidin conjugation. Upon vaccination with CPG, selected synthetic epitopes conjugated to polymeric nanoparticles trended to reduce serum LDL-c and serum PCSK9 in murine models. Additionally, antibodies in the serum showed promise to increase LDL-receptor levels in HepG2 cells transfected in with WT-hPCSK9 and GOF-hPCSK9 separately suggesting that this vaccine has the potential to reduce risks of CVD. These studies demonstrate that designing polymeric nanoparticles for applications to stimulate the immune system can help define new, cost-effective treatment options in applications for prophylaxis against infectious diseases that are unresponsive to traditional routes of vaccination or for immunotherapy against cardiovascular disease and cancer.
Author: Yinan Zhang
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Vaccines are essential to induce the pathogen specific immune responses against infectious disease. Antigens derived from pathogens needs to be delivered to and retained in the immune organs (especially lymph nodes) for efficient immune responses and production of neutralized antibodies. A strategy is to use engineered nanoparticles as delivery carriers to help antigen delivery inside lymph nodes. We do not know how lymph nodes process nanoparticle-based vaccines for immune responses. In this thesis, we first found that follicular dendritic cell (FDC) networks determine the intra-lymph node follicle fate of nanoparticles based on nanoparticle size. The FDCs clear smaller nanoparticles (5-15 nm) and retain larger nanoparticles (50-100 nm) on their dendrites. These retained larger nanoparticles are then presented to B cells to induce humoral immune responses. Next, we assessed the role of immune cell population on nanoparticle delivery inside lymph nodes and found subcapsular sinus macrophage prevent the nanoparticle delivery to FDCs. Suppressing the subcapsular sinus macrophage results in enhancement of nanoparticle delivery to lymph node follicles and up to 60 times more antigen specific antibody production. Lastly, removal of liver macrophages promotes nanoparticle delivery to lymph nodes and tumours after systemic administration. These studies reveal the mechanism of how our immune system process nanoparticles. This knowledge enables us to rationally engineer nanoparticle vaccines and develop strategies of altering immune cell populations to generate effective immune responses.
Author: Sunil Thomas
Publisher:
ISBN: 9781493933877
Category : Vaccines
Languages : en
Pages : 873
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Book Description
Author: Hiroshi Kiyono
Publisher: Elsevier
ISBN: 0080537057
Category : Medical
Languages : en
Pages : 501
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Book Description
This comprehensive, authoritative treatise covers all aspects of mucosal vaccines including their development, mechanisms of action, molecular/cellular aspects, and practical applications. The contributing authors and editors of this one-of-a-kind book are very well known in their respective fields. Mucosal Vaccines is organized in a unique format in which basic, clinical, and practical aspects of the mucosal immune system for vaccine development are described and discussed. This project is endorsed by the Society for Mucosal Immunology. Provides the latest views on mucosal vaccines Applies basic principles to the development of new vaccines Links basic, clinical, and practical aspects of mucosal vaccines to different infectious diseases Unique and user-friendly organization
Author: Sergio Rosales-Mendoza
Publisher: Springer Nature
ISBN: 3030316688
Category : Technology & Engineering
Languages : en
Pages : 343
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Book Description
This book provides a compilation of the current developments in mucosal nanovaccines, which are an attractive approach to fight against infectious and non-communicable diseases. Since nanomaterials possess unique properties; many of them have a positive effect on vaccine efficacy when used as antigen carriers and have been applied in vaccinology with significant advances over the past years. This book addresses the methodologies for mucosal nanovaccines synthesis; based on the following nanomaterials: gold, PLGA, silica, and chitosan nanoparticles; as well as nanogels, carbon nanotubes, liposomes, and Virus-like particles. A description of the immunogenic properties of the mucosal nanovaccines is presented, highlighting the improvements achieved with this approach when compared to conventional formulations. Mucosal vaccines constitute the most practical immunization approach since they are easy to administer (promoting patient ́s comfort and increasing compliance), allow triggering relevant immune responses at both the site of administration and distant compartments, and thus may protect the main entry portal for pathogens (oral, nasal, and genital mucosae). In this context, the potential of nanovaccines to result in new mucosal formulations in the benefit of global health is analyzed. Covers the synthesis and functionalization of nanomaterials for the development of nanovaccines; Discusses the underlying mechanisms involved in the induction of immune responses through mucosal compartments and the advantages of nanomaterials in the formulation of nanovaccines; Transmits the state of the art for the development of mucosal nanovaccines; Provides routes for the design and evaluation of mucosal nanovaccines; Presents key perspectives for the field of mucosal vaccine development.
Author: Harvinder Singh Gill
Publisher: Springer Nature
ISBN: 3030850676
Category : Medical
Languages : en
Pages : 140
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Book Description
This book introduces nanoparticles as a powerful platform for vaccine design. Current challenges in vaccine development are discussed and the unique advantages nanoparticles provide in overcoming these challenges are explored. The authors offer fascinating insights into the immunological assets of using nanoparticles as delivery vehicles or adjuvants and present different materials that are being used in nanoparticle-based vaccine development, covering peptides, proteins, polymers, virus-like particles, and liposomes. Its contemporary research insights and practical examples for applications make this volume an inspiring read for researchers and clinicians in vaccinology and immunology. Chapter "Liposome Formulations as Adjuvants for Vaccines" is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Author: Ijeoma F. Uchegbu
Publisher: Springer Science & Business Media
ISBN: 1461491649
Category : Medical
Languages : en
Pages : 602
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Book Description
Nanoscience or the science of the very small offers the pharmaceutical scientist a wealth of opportunities. By fabricating at the nanoscale, it is possible to exert unprecedented control on drug activity. This textbook will showcase a variety of nanosystems working from their design and construction to their application in the field of drug delivery. The book is intended for graduate students in drug delivery, physical and polymer chemistry, and applied pharmaceutical sciences courses that involve fundamental nanoscience. The purpose of the text is to present physicochemical and biomedical properties of synthetic polymers with an emphasis on their application in polymer therapeutics i.e., pharmaceutical nanosystems, drug delivery and biological performance. There are two main objectives of this text. The first is to provide advanced graduate students with knowledge of the principles of nanosystems and polymer science including synthesis, structure, and characterization of solution and solid state properties. The second is to describe the fundamentals of therapeutic applications of polymers in drug delivery, targeting, response modifiers as well as regulatory issues. The courses, often listed as Advanced Drug Delivery and Applied Pharmaceutics; Polymer Therapeutics; or Nanomedicine, are designed as an overview of the field specifically for graduate students in the Department of Pharmaceutical Sciences Graduate Programs. However, the course content may also be of interest for graduate students in related biomedical research programs. These courses generally include a discussion of the major principles of polymer science and fundamental concepts of application of polymers as modern therapeutics. All courses are moving away from the above mentioned course names and going by ‘pharmaceutical nanoscience or nanosystems’. This area of research and technology development has attracted tremendous attention during the last two decades and it is expected that it will continue to grow in importance. However, the area is just emerging and courses are limited but they are offered.
Author: Adrienne Victoria Li
Publisher:
ISBN:
Category :
Languages : en
Pages : 110
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Book Description
Vaccines have benefited global health by controlling or eradicating life threatening diseases. With better understanding of infectious diseases and immunity, more interest has been placed on stimulating mucosal immune responses with vaccines as mucosal surfaces function as a first line of defense against infections. Progress made in nanoparticle research, in particular the successful use of liposomes for drug delivery, has made liposomes an attractive candidate for vaccine delivery. Here, we investigate the efficacy of using a novel nanoparticle system, Interbilayer Crosslinked Multilamellar Vesicles (ICMVs), as a mucosal vaccine to stimulate mucosal and systemic CD8 immunity. We first assessed the ability of ICMVs to elicit mucosal CD8 response, against the model antigen ovalbumin (OVA), by administration of the nanoparticles through the lungs. We explored the use of 2 different Toll-like receptor agonists (TLRa), monophosphoryl lipid A (MPLA) and Polyinosinic:polycytidylic acid (poly (I:C) or pIC) added to ICMVs as adjuvants. Pulmonary administration of ICMV with both adjuvants was found to give the most potent CD8 T cell response in both systemic and mucosal compartments. We looked further into the quality of the immune response and detected the presence of antigenspecific memory CD8 T cells in the system at ~2.5 months after immunization. The majority of these cells were found to be effector memory cells (CD44hiCD62Llo) and expressed markers for long term survival (CD127hiKLRG1lo), suggesting that long term protection against infection can be induced by pulmonary delivery of ICMVs. We also explored using this system to deliver a model HIV peptide epitope, AL 1, and ICMV successfully induced CD8 response against this epitope. Animals immunized against AL 11 were challenged with a live virus expressing the same epitope and protection was seen only in the pulmonary ICMV treatment group. Virus was delivered via the lungs and viral titre was decreased in both the lungs and ovaries. Neither the soluble form of the vaccine or ICMV delivered via parenteral injection conferred protection. Safety of the ICMV system was also assessed and no significant negative effects were observed in body weight and histological analysis on lungs. Finally, mechanism of using nanoparticles as pulmonary vaccines was investigated to gain better understanding in how particulate vaccine and route of immunization improved the efficacy of a vaccine. Overall, this thesis describes a comprehensive study of systemic and mucosal CD8 responses generated by pulmonary delivery of a novel nanoparticle system. This data provides evidence that mucosal delivery of ICMVs can safely and effectively stimulate disseminated mucosal CD8+ T cells at sites relevant for protection against mucosal infection. A better understanding of nanoparticles for pulmonary immunization was also gained.
