Download or read book Paradigm Changes Are Required in HIV Vaccine Research written by Marc H. V. Van Regenmortel and published by Frontiers Media SA. This book was released on 2015-12-08 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: In his 1962 book "The Structure of Scientific Revolutions", Thomas Kuhn famously argued that researchers in every field of scientific enquiry always operate under a set of presuppositions known as paradigms that are rarely explicitly stated. In the field of HIV vaccine research, several prevailing paradigms led scientists for many years to pursue unfruitful lines of investigations that impeded significant progress. The uncritical acceptance of reigning paradigms makes scientists reluctant to abandon their mistaken assumptions even when they obtain results that are not consistent with the paradigms. The following five paradigms which disregard the degeneracy of the immune system were particularly harmful. 1) There is a primary and intrinsic epitope specific for each B cell receptor and for the corresponding monoclonal antibody. In reality, there is no single, intrinsic or "real" epitope for any antibody but only a diverse group of potential ligands. 2) Reactions with monoclonal antibodies are more specific than the combined reactivity of polyclonal antibodies. In reality, a polyclonal antiserum has greater specificity for a multiepitopic protein because different antibodies in the antiserum recognize separate epitopes on the same protein, giving rise to an additive specificity effect. By focusing vaccine design on single epitope-Mab pairs, the beneficial neutralizing synergy that occurs with polyclonal antibody responses is overlooked. 3) The HIV epitope identified by solving the crystallographic structure of a broadly neutralizing Mab – HIV Env complex should be able, when used as immunogen, to elicit antibodies endowed with the same neutralizing capacity as the Mab. Since every anti HIV bnMab is polyspecific, the single epitope identified in the complex is not necessarily the one that elicited the bnMab. Since hypermutated Mabs used in crystallographic studies differ from their germline-like receptor version present before somatic hypermutation, the identified epitope will not be an effective vaccine immunogen. 4) Effective vaccine immunogenicity can be predicted from the antigenic binding capacity of viral epitopes. Most fragments of a viral antigen can induce antibodies that react with the immunogen, but this is irrelevant for vaccination since these antibodies rarely recognize the cognate, intact antigen and even more rarely neutralize the infectivity of the viral pathogen that harbors the antigen. 5) The rational design of vaccine immunogens using reverse vaccinology is superior to the trial-and-error screening of vaccine candidates able to induce protective immunity. One epitope can be designed to increase its structural complementarity to one particular bnMab, but such antigen design is only masquerading as immunogen design because it is assumed that antigenic reactivity necessarily entails the immunogenic capacity to elicit neutralizing antibodies. When HIV Env epitopes, engineered to react with a bnMab are used to select from human donors rare memory B cells secreting bnAbs, this represents antigen design and not immunogen design. The aim of this Research Topic is to replace previous misleading paradigms by novel ones that better fit our current understanding of immunological specificity and will help HIV vaccine development.
Download or read book HIV AIDS Immunochemistry Reductionism and Vaccine Design written by Marc H V Van Regenmortel and published by Springer Nature. This book was released on 2019-11-26 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers a series of pivotal papers on the development of an HIV/AIDS vaccine published in the last two decades. Accompanied by extensive comments putting the material into an up-to-date context, all three parts of the book offer a broad overview of the numerous unsuccessful attempts made in recent years to develop a preventive HIV vaccine. Providing a detailed review and analysis of studies published from 1998 to the present day, it examines the likely reasons for the failure to develop an HIV vaccine despite multi-million dollar investments.
Download or read book HIV AIDS New Insights for the Healthcare Professional 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-07-22 with total page 1112 pages. Available in PDF, EPUB and Kindle. Book excerpt: HIV/AIDS: New Insights for the Healthcare Professional: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Diagnosis and Screening. The editors have built HIV/AIDS: New Insights for the Healthcare Professional: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Diagnosis and Screening in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of HIV/AIDS: New Insights for the Healthcare Professional: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Download or read book Animal Experimentation Working Towards a Paradigm Change written by Kathrin Herrmann and published by BRILL. This book was released on 2019-04-30 with total page 749 pages. Available in PDF, EPUB and Kindle. Book excerpt: Animal experimentation has been one of the most controversial areas of animal use, mainly due to the intentional harms inflicted upon animals for the sake of hoped-for benefits in humans. Despite this rationale for continued animal experimentation, shortcomings of this practice have become increasingly more apparent and well-documented. However, these limitations are not yet widely known or appreciated, and there is a danger that they may simply be ignored. The 51 experts who have contributed to Animal Experimentation: Working Towards a Paradigm Change critically review current animal use in science, present new and innovative non-animal approaches to address urgent scientific questions, and offer a roadmap towards an animal-free world of science.
Download or read book Paradigm Changes are Required in HIV Vaccine Research written by and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In his 1962 book "The Structure of Scientific Revolutions", Thomas Kuhn famously argued that researchers in every field of scientific enquiry always operate under a set of presuppositions known as paradigms that are rarely explicitly stated. In the field of HIV vaccine research, several prevailing paradigms led scientists for many years to pursue unfruitful lines of investigations that impeded significant progress. The uncritical acceptance of reigning paradigms makes scientists reluctant to abandon their mistaken assumptions even when they obtain results that are not consistent with the paradigms. The following five paradigms which disregard the degeneracy of the immune system were particularly harmful. 1) There is a primary and intrinsic epitope specific for each B cell receptor and for the corresponding monoclonal antibody. In reality, there is no single, intrinsic or "real" epitope for any antibody but only a diverse group of potential ligands. 2) Reactions with monoclonal antibodies are more specific than the combined reactivity of polyclonal antibodies. In reality, a polyclonal antiserum has greater specificity for a multiepitopic protein because different antibodies in the antiserum recognize separate epitopes on the same protein, giving rise to an additive specificity effect. By focusing vaccine design on single epitope-Mab pairs, the beneficial neutralizing synergy that occurs with polyclonal antibody responses is overlooked. 3) The HIV epitope identified by solving the crystallographic structure of a broadly neutralizing Mab - HIV Env complex should be able, when used as immunogen, to elicit antibodies endowed with the same neutralizing capacity as the Mab. Since every anti HIV bnMab is polyspecific, the single epitope identified in the complex is not necessarily the one that elicited the bnMab. Since hypermutated Mabs used in crystallographic studies differ from their germline-like receptor version present before somatic hypermutation, the identified epitope will not be an effective vaccine immunogen. 4) Effective vaccine immunogenicity can be predicted from the antigenic binding capacity of viral epitopes. Most fragments of a viral antigen can induce antibodies that react with the immunogen, but this is irrelevant for vaccination since these antibodies rarely recognize the cognate, intact antigen and even more rarely neutralize the infectivity of the viral pathogen that harbors the antigen. 5) The rational design of vaccine immunogens using reverse vaccinology is superior to the trial-and-error screening of vaccine candidates able to induce protective immunity. One epitope can be designed to increase its structural complementarity to one particular bnMab, but such antigen design is only masquerading as immunogen design because it is assumed that antigenic reactivity necessarily entails the immunogenic capacity to elicit neutralizing antibodies. When HIV Env epitopes, engineered to react with a bnMab are used to select from human donors rare memory B cells secreting bnAbs, this represents antigen design and not immunogen design. The aim of this Research Topic is to replace previous misleading paradigms by novel ones that better fit our current understanding of immunological specificity and will help HIV vaccine development.
Download or read book Medicinal Protein Engineering written by Yury E. Khudyakov and published by CRC Press. This book was released on 2008-12-01 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: An All-Inclusive Review of the Achievements and Trends in the Fast-Growing Protein Engineering Field From humble beginnings like making fire for mere survival, engineering now steadfastly penetrates all aspects of our lives and even life itself at the molecular level. Protein engineering is a molecular biological discipline focused on designing and
Download or read book Immunology written by Richard A. Goldsby and published by Macmillan. This book was released on 2003 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new edition of the acclaimed bestseller, always praised for offering cutting edge material in the context of landmark experiments, in a student friendly format built on pedagogy not usually found in immunology texts.
Download or read book Sexually Transmitted Infections written by National Academies of Sciences, Engineering, and Medicine and published by . This book was released on 2021-12-24 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: One in five people in the United States had a sexually transmitted infection (STI) on any given day in 2018, totaling nearly 68 million estimated infections. STIs are often asymptomatic (especially in women) and are therefore often undiagnosed and unreported. Untreated STIs can have severe health consequences, including chronic pelvic pain, infertility, miscarriage or newborn death, and increased risk of HIV infection, genital and oral cancers, neurological and rheumatological effects. In light of this, the Centers for Disease Control and Prevention, through the National Association of County and City Health Officials, commissioned the National Academies of Sciences, Engineering, and Medicine to convene a committee to examine the prevention and control of sexually transmitted infections in the United States and provide recommendations for action. In 1997, the Institute of Medicine released a report, The Hidden Epidemic: Confronting Sexually Transmitted Diseases. Although significant scientific advances have been made since that time, many of the problems and barriers described in that report persist today; STIs remain an underfunded and comparatively neglected field of public health practice and research. The committee reviewed the current state of STIs in the United States, and the resulting report, Sexually Transmitted Infections: Advancing a Sexual Health Paradigm, provides advice on future public health programs, policy, and research.
Download or read book Post Genomic Approaches in Drug and Vaccine Development written by Kishore R. Sakharkar and published by River Publishers. This book was released on 2015-04-11 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decade, genome sequencing projects and the associated efforts have facilitated the discovery of several novel disease targets and the approval of several innovative drugs. To further exploit this data for human health and disease, there is a need to understand the genome data itself in detail, discover novel targets, understand their role in physiological pathways and associated diseases, with the aim to translate these discoveries to clinical and preventive medicine. It is equally important to understand the labors and limitations in integrating clinical phenotypes with genomic, transcriptomic, proteomic and metabolomic approaches. This book focuses on some key advances in the field. Technical topics discussed in the book include: Drug discoveryTarget identification and prioritizationHypothesis driven multi-target drug designGenomics in vaccine developmentGene regulatory networks Vaccine design and developmentPrediction of drug side effects in silico
Download or read book A Guide to AIDS written by Omar Bagasra and published by CRC Press. This book was released on 2017-03-31 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Guide to AIDS is succinct review of HIV/AIDS from a human-interest perspective. Chapters focus on some of the common patterns and prevention of HIV transmission and debunks misconceptions about HIV and AIDS. Brief descriptions the human immune system and epidemiology of HIV are included. The cultural component of disease, treatment and living with AIDS is central to much of this guide intended to synthesize, explain and de-mystify HIV and AIDS.
Download or read book Immunology and the Quest for an HIV Vaccine written by Dr. Omar Bagasra, MD, PhD and Dr. Donald Gene Pace, PhD and published by Author House. This book was released on 2012-01-13 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: How many human immune systems are there? How old are they? Why is there no AIDS vaccine? Is a new approach needed? Why is public opinion growing skeptical of the scientific community after three decades of public awareness about HIV/AIDS? Consider answers to these puzzling questions. Learn from the decades of experience of two senior scholars: Dr. Omar Bagasra (an eminent molecular biologist, immunologist, and retrovirologist) and Dr. Donald Gene Pace (a highly published writer who examines public health policy). Explore intriguing new possibilities about human immunity, and the development of an effective AIDS vaccine. Read Immunology and the Quest for an HIV Vaccine. Benefit from an informed synthesis backed by a wealth of peer-reviewed scientific references. Review basic concepts of immunology, and stretch your perspective by contemplating this creative synthesis that provides a provocative treatise on the origin, evolution, and etiology of several forms of immune systems. Consider compelling ideas that will have an important bearing on HIV vaccine development. Enjoy this informative volume designed for anyone interested in the development of a safe AIDS vaccine, for anyone curious about present knowledge about human immunity, and for anyone yearning for a solution to the global pandemic that is AIDS.
Download or read book Kuby Immunology written by Thomas J. Kindt and published by Macmillan. This book was released on 2007 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally authored by the award winning author Janis Kuby, "Immunology" remains the best selling textbook for the undergraduate course. The first and only true textbook written by professors who teach the undergraduate course, it presents the most current concepts in an experimental context with clinical advances highlighted in boxes, supported by the kind of helpful pedagogical tools that other books do not provide.
Download or read book HIV Associated Immune Activation and Persistent Inflammation written by Martin Hoenigl and published by Frontiers Media SA. This book was released on 2020-01-21 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 100 Years of Virology written by Charles H. Calisher and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: One hundred years ago, when Martinus W. Beijerinck in Delft and Friedrich Loeffler on Riems Island discovered a new class of infectious agents in plants and animals, a new discipline was born. This book, a compilation of papers written by well-recognized scientists, gives an impression of the early days, the pioneer period and the current state of virology. Recent developments and future perspectives of this discipline are sketched against a historic background. With contributions by A. Alcami, D. Baulcombe, F. Brown, L. W. Enquist, H. Feldmann, A. Garcia-Sastre, D. Griffiths, M. C. Horzinek, A. van Kammen, H.-D. Klenk, F. A. Murphy, T. Muster, R. O'Neill, P. Palese, C. Patience, R. Rott, H.- P. Schmiedebach, S. Schneider-Schaulies, G. L. Smith, J. A. Symons, Y. Takeuchi, V. ter Meulen, P. J. W. Venables, V. E. Volchkov, V. A. Volchkova, R. A. Weiss, W. Wittmann, H. Zheng.
Download or read book Departments of Labor Health and Human Services Education and Related Agencies Appropriations for 2013 written by United States. Congress. House. Committee on Appropriations. Subcommittee on the Departments of Labor, Health and Human Services, Education, and Related Agencies and published by . This book was released on 2012 with total page 1834 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vaccine Design written by Rino Rappuoli and published by Caister Academic Press Limited. This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, expert international authors critically review the current cutting-edge research in vaccine design and development. Particular emphasis is given to new approaches and technologies.
Download or read book Vaccines for Biodefense and Emerging and Neglected Diseases written by Alan D.T. Barrett and published by Academic Press. This book was released on 2009-03-05 with total page 1519 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last 20 years has seen a rapid increase in infectious diseases, particularly those that are termed "emerging diseases" such as SARS, "neglected diseases" such as malaria and those that are deemed biothreats such as anthrax. It is well-recognized that the most effective modality for preventing infectious diseases is vaccination. This book provides researchers with a better understanding of what is currently known about these diseases, including whether there is a vaccine available or under development. It also informs readers of the key issues in development of a vaccine for each disease. - Provides a comprehensive treatise of the agents that are responsible for emerging and neglected diseases and those that can be used as biothreats - Includes the processes such as the vaccine development pathway, vaccine manufacturing and regulatory issues that are critical to the generation of these vaccines to the marketplace - Each chapter will include a map of the world showing where that particular disease is naturally found
