Download or read book Human IgG Fc Receptors written by Jan G. J. van de Winkel and published by . This book was released on 1996-01-01 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a state-of-the-art overview of human IgG Fc receptors, which have a crucial coordinating role in immunity. The organization of the book is unique in that it describes the FcgR on the basis of the cells expressing them. This optimally allows to address specific roles for FcgR on select cells (i.e. immunoregulation on B cells, IgG-transport in placenta, phagocytosis on neutrophils). The information in this book is easily accessible and should be helpful for researchers as a convenient overview of the field, as well as a comprehensive introduction for students starting in this area of research. Importantly, a summary of key information of the various FcgR is presented in "FcgR Yellow Pages," for rapid/convenient access of relevant data.
Download or read book Functional Studies of Human IgG Fc Receptors written by David V. Erbe and published by . This book was released on 1991 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Studies of the Human IgG Fc Receptors written by Diane L. Maresco and published by . This book was released on 1997 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Antibody Fc written by Theo Rispens and published by Elsevier Inc. Chapters. This book was released on 2013-08-06 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Immunoglobulins are a group of closely related glycoproteins composed of 82 to 96% protein and 4 to 18% carbohydrate. In humans, there are five classes of immunoglobulins, which differ in heavy-chain structure. Immunoglobulin G (IgG) is the major class of immunoglobulins in blood and can be further subdivided in subclasses. The four subclasses of IgG were discovered in the 1960s following extensive studies using specific rabbit antisera against human IgG myeloma proteins.1 They are designated IgG1, IgG2, IgG3, and IgG4, in order of decreasing abundance. Several decades of research has revealed subtle but profound differences among the subclasses. Each subclass has a unique profile with respect to antigen binding, immune complex formation, complement activation, triggering of effector cells, and placental transport (Table 9.1). In addition, IgG antibody responses to different types of antigens or pathogens often lead to marked skewing toward one of the subclasses. On the other hand, selective subclass deficiencies are usually not detrimental to the individual but do sometimes lead to enhanced susceptibility toward specific classes of pathogens. All in all, the acquired variability within the Ig locus seems to have been selected for beneficial changes during evolution for optimizing or fine-tuning the antibody-mediated immune response.
Download or read book The Cloning and Expression of Mouse and Human IgG Fc Receptors written by Bernadette Maree Scott and published by . This book was released on 1988 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Antibody Fc written by Margaret Ackerman and published by Academic Press. This book was released on 2013-08-06 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antibody Fc is the first single text to synthesize the literature on the mechanisms underlying the dramatic variability of antibodies to influence the immune response. The book demonstrates the importance of the Fc domain, including protective mechanisms, effector cell types, genetic data, and variability in Fc domain function. This volume is a critical single-source reference for researchers in vaccine discovery, immunologists, microbiologists, oncologists and protein engineers as well as graduate students in immunology and vaccinology. Antibodies represent the correlate of protection for numerous vaccines and are the most rapidly growing class of drugs, with applications ranging from cancer and infectious disease to autoimmunity. Researchers have long understood the variable domain of antibodies, which are responsible for antigen recognition, and can provide protection by blocking the function of their target antigen. However, recent developments in our understanding of the protection mediated by antibodies have highlighted the critical nature of the antibody constant, or Fc domain, in the biological activity of antibodies. The Fc domain allows antibodies to link the adaptive and innate immune systems, providing specificity to a wide range of innate effector cells. In addition, they provide a feedback loop to regulate the character of the immune response via interactions with B cells and antigen-presenting cells. - Clarifies the different mechanisms of IgG activity at the level of the different model systems used, including human genetic, mouse, and in vitro - Covers the role of antibodies in cancer, infectious disease, and autoimmunity and in the setting of monoclonal antibody therapy as well as naturally raised antibodies - Color illustrations enhance explanations of the immune system
Download or read book Characterisation of the Structure and Expression of Mouse and Human IgG Fc Receptors written by Lynn Patricia Grattage and published by . This book was released on 1988 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Immunoreceptor Tyrosine based Inhibition Motifs written by Marc Daeron and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Novel molecular motifs named Immunoreceptor Tyrosine-based Inhibition Motifs (ITIMs) have recently been recognized in the intracytoplasmic domains of a still-increasing number of receptors which control cell activation and proliferation. Research on ITIM-bearing molecules has developed exponentially during the last three years, generating new concepts with important consequences in basic research and with exciting potential clinical applications. The present volume contains 15 reviews written by authors who all made significant contributions to the identification of ITIM-bearing molecules and the study of their biological properties. It constitutes the first synthesis ever published that is specifically devoted to this emerging topic.
Download or read book The Human IgG Subclasses written by Farouk Shakib and published by Elsevier. This book was released on 2016-04-20 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book features contributions from internationally renowned scientists from Europe and the USA covering aspects of immunoglobulin subclasses from a molecular and mechanistic approach. The first section presents a detailed discussion of the molecular structure and segmental flexibility of IgG subclasses, including how this controls their effector function. Structure-function relationships are fully developed in the second section by means of a functional approach to the study of complement activation and opsonization by IgG subclasses. The final section contains a generous account of the regulation of IgG subclass expressions.
Download or read book Janeway s Immunobiology written by Kenneth Murphy and published by Garland Science. This book was released on 2010-06-22 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Janeway's Immunobiology CD-ROM, Immunobiology Interactive, is included with each book, and can be purchased separately. It contains animations and videos with voiceover narration, as well as the figures from the text for presentation purposes.
Download or read book Antibody Fc written by Marije B. Overdijk and published by Elsevier Inc. Chapters. This book was released on 2013-08-06 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, lack of specificity for cancer cells has been a major problem in cancer treatment; however, the development of monoclonal antibodies (mAbs), which combine high specificity with multiple mechanisms of action (MoAs), started a revolution in anti-cancer treatment options which continues to date. As of January 2013, 15 major antibody products were being marketed for cancer treatment in various countries around the globe, 10 of which are unmodified mAbs, which generally have multiple potential MoAs and may act via direct, Fab-domain-related effects or indirect, Fc-domain-related effects. Fc-domain-related effects consist of immune-mediated effector functions, which include complement-dependent cytotoxicity (CDC), antibody-dependent cellular cytotoxicity (ADCC), and antibody-dependent cellular phagocytosis (ADCP). ADCC and ADCP depend on the engagement of Fcγ-receptors (FcγR) on immune effector cells by Fc-domains clustered due to antibody–antigen binding. Similarly, CDC depends on the engagement of proteins of the complement system by clustered antibody Fc domains. In this chapter, preclinical and clinical studies with approved anti-cancer mAbs are reviewed, with an emphasis on the role of FcγR-mediated effector functions. The importance of therapeutic antibody–FcγR interactions for human treatment can be deduced from correlations of clinical responses with FcγR polymorphisms, results supported by a wealth of preclinical and in vitro studies.
Download or read book Antibody Fc written by Peter Sun and published by Elsevier Inc. Chapters. This book was released on 2013-08-06 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular mechanisms of antibody-mediated Fc receptor activation have long been an interest in both Fc receptor biology and antibody therapeutics. The structural efforts to elucidate antibody recognition by Fc receptors have led to the generation of several crystal structures of antibody Fc fragments complexed with Fc receptors. Collectively, these structures revealed a conserved receptor binding mode for IgG and IgE, distinct from those for the neonatal Fc receptor (FcRn), protein A, and protein G. Fcγ receptor recognition in the lower hinge region allows enhanced antigen recognition through dimeric Fabs but obligates immune-complex formation for receptor activation. It also provides the basis for Fcγ receptors to differentiate among IgG subclasses. More recently, pentraxins have also been shown to bind and activate Fc receptors, and structural efforts to elucidate pentraxin Fcγ receptor recognition have revealed surprising similarities between pentraxins and immunoglobulins in Fc receptor recognition. This review summarizes the structural findings that formed the basis of modern antibody–Fc receptor biology and recent advances of shared Fc receptor recognition by innate pentraxins.
Download or read book Roles of Fc Receptors in Disease and Therapy written by Latha P. Ganesan and published by Frontiers Media SA. This book was released on 2020-07-22 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biochemical Analysis and Molecular Cloning of Mouse and Human IgG Fc Receptors written by Margaret Lily Hibbs and published by . This book was released on 1988 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fc Receptors written by Marc Daeron and published by Springer. This book was released on 2014-08-12 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a state-of-the-art update on Fc Receptors (FcRs). It is divided into five parts. Part I, Old and New FcRs, deals with the long-sought-after FcμR and the recently discovered FCRL family and TRIM21. Part II, FcR Signaling, presents a computational model of FcεRI signaling, novel calcium channels, and the lipid phosphatase SHIP1. Part III, FcR Biology, addresses major physiological functions of FcRs, their glycosylation, how they induce and regulate both adaptive immune responses and inflammation, especially in vivo, FcR humanized mice, and the multifaceted properties of FcRn. Part IV, FcRs and Disease, discusses FcR polymorphism, FcRs in rheumatoid arthritis and whether their FcRs make macaques good models for studying HIV infection. In Part V, FcRs and Therapeutic Antibodies, the roles of various FcRs, including FcγRIIB and FcαRI, in the immunotherapy of cancer and autoimmune diseases using monoclonal antibodies and IVIg are highlighted. All 18 chapters were written by respected experts in their fields, offering an invaluable reference source for scientists and clinicians interested in FcRs and how to better master antibodies for therapeutic purposes.
Download or read book Molecular and Cellular Mechanisms of Antibody Activity written by Falk Nimmerjahn and published by Springer Science & Business Media. This book was released on 2013-05-22 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the function of antibodies in vivo. Recent years have seen an exponential growth in knowledge about the molecular and cellular mechanisms of antibody activity. These new results dramatically changed our view of how antibodies function in vivo. The importance of this class of molecules is demonstrated by the heightened susceptibility to infections of humans and mice with an altered capacity to generate pathogen specific antibody responses. Thus, the majority of our currently available vaccines, such as vaccines against influenza, measles and hepatitis focus on the generation of long lasting antibody responses. Recent evidence from a variety of in vivo model systems and from human patient cohorts has highlighted the exclusive role of cellular Fc-receptors for certain immunoglobulin isotypes and subclasses. With the recent discovery of a human Fc-receptor for IgM all different human immunoglobulin isotypes now have a cellular receptor, providing a feedback mechanism and link between antibodies and the cellular components of the immune system. Moreover it has become clear the complement and Fc-receptor system are tightly connected and regulate each other to ensure a well balanced immune response. Among the immunoglobulin isotypes IgG plays a very important protective role against microbial infections and also as a therapeutic agent to kill tumor cells or autoantibody producing B cells in autoimmune disease. Transfer of our knowledge about the crucial function of Fc-receptors has led to the production of a second generation of therapeutic antibodies with enhanced binding to this class of receptors. Binding of antibodies to Fc-receptors leads to the recruitment of the potent pro-inflammatory effector functions of cells from the innate immune system. Hence, Fc-receptors link the innate and adaptive immune system, emphasizing the importance of both arms of the immune system and their crosstalk during anti-microbial immune responses. Besides this pro-inflammatory activity immunoglobulin G (IgG) molecules are long known to also have an anti-inflammatory function. This is demonstrated by the use of high dose intravenous immunoglobulins as a therapeutic agent in many human autoimmune diseases. During the past five years several new insights into the molecular and cellular pathways of this anti-inflammatory activity were gained radically changing our view of IgG function in vivo. Several lines of evidence suggest that the sugar moiety attached to the IgG molecule is responsible for these opposing activities and may be seen as a molecular switch enabling the immune system to change IgG function from a pro- to an anti-inflammatory activity. There is convincing evidence in mice and humans that aberrant IgG glycosylation could be an important new pathway for understanding the impaired antibody activity during autoimmune disease. Besides this tremendous increase in basic knowledge about factors influencing immunoglobulin activity the book will also provide insights into how these new insights might help to generate novel therapeutic approaches to enhance IgG activity for tumor therapy on the one hand, and how to block the self-destructive activity of IgG autoantibodies during autoimmune disease on the other hand.
Download or read book The Immunoglobulin Receptors and their Physiological and Pathological Roles in Immunity written by Jan G.J. Winkel and published by Springer Science & Business Media. This book was released on 2012-02-02 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antibodies are crucial to the fine specificity of the immune system. An effective functioning of these molecules requires interaction with immune cells. Receptors for antibodies, Fc receptors, provide this critical link between the humoral and cellular branches of the immune system. This book presents a comprehensive overview of the different Fc receptors currently recognized. The first part of the book contains state-of-the-art overviews on the biological role of FcR. The latest information on FcR heterogeneity, FcR physiology, FcR-ligand recognition, their crucial coordinating role in immunity, interactions with other immunoreceptors, and the role of FcR in immunoglobulin transport and catabolism are discussed. The clinical importance of FcR is developed in the second part of the book. The well-recognized roles of FcR in allergy, inflammation, infectious diseases, autoimmune disorders, and immunotherapeutic importance are reviewed. The information in this book is easily accessible and should be helpful for researchers and clinical specialists as a convenient overview of the field, as well as a comprehensive introduction for students starting in this area of research.
