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Book Cover
E-book

Title Molecular and cellular mechanisms of antibody activity / Falk Nimmerjahn, editor
Published New York, NY : Springer, [2013]
©2013
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Description 1 online resource
Contents 880-01 IgM and IgD in infection and inflammatory diseases -- Immunoglobulin A -- molecular mechanisms of function and role in immune defense -- Crystal structures of human IgG Fc-fragments and their complexes with Fc Receptors -- The role of IgG in immune responses -- Molecular and cellular pathways involved in the anti-inflammatory activity of IgG -- Example of the Pathogenic Potential of Two Sets of Autoantibodies: Anti-RBC and IgG3 RF Cryoglobulins -- Cross-talk between antibodies, IgG Fc receptors and the complement system -- Regulation of immunological responses by the neonatal Fc receptor for IgG, FcRn -- Antibody mediated regulation of humoral immunity -- Engineered antibody derivatives in preclinical and clinical development
880-01/(S IgM and IgD in Infection and Inflammatory Diseases / Mikael Karlsson -- Immunoglobulin A: Molecular Mechanisms of Function and Role in Immune Defence / Jenny M. Woof -- Crystal Structures of Human IgG-Fc Fragments and Their Complexes with Fcγ Receptors / Peter Sondermann -- The Role of IgG in Immune Responses / Jeanette H.W. Leusen, Falk Nimmerjahn -- Molecular and Cellular Pathways Involved in the Anti-inflammatory Activity of IgG / Falk Nimmerjahn -- Example of the Pathogenic Potential of Two Sets of Autoantibodies: Anti-RBC and IgG3 RF Cryoglobulins / Shozo Izui -- Cross-Talk Between Antibodies, IgG Fc Receptors, and the Complement System / Christian M. Karsten, Jörg Köhl -- Regulation of Immunological Responses by the Neonatal Fc Receptor for IgG, FcRn / Kristi Baker, Timo Rath -- Antibody Mediated Regulation of Humoral Immunity / Birgitta Heyman -- Engineered Antibody Derivatives in Preclinical and Clinical Development / Christian Kellner, Matthias Peipp
Summary 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
Analysis Medicine
Immunology
Microbiology
Medical virology
Biomedicine
Medical Microbiology
Virology
Notes Includes index
Bibliography Includes bibliographical references and index
Subject Immunoglobulins.
Immune response -- Molecular aspects.
Immune System Phenomena.
Form Electronic book
Author Nimmerjahn, Falk.
LC no. 2013938377
ISBN 9781461471073 (electronic bk.)
1461471079 (electronic bk.)