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Author: Hilary Koprowski
Publisher: Springer Science & Business Media
ISBN: 3642714404
Category : Medical
Languages : en
Pages : 93
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Book Description
The humoral response of the immune system to a foreign antigen usually requires the recognition of two antigenic determinants. The one, called the carrier, is recognized by T-Iymphocytes, the other, called the hapten, by B-Iympho cytes. As a consequence, T - and B-Iymphocytes proliferate, B-Iymphocytes produce hapten-specific antibodies, and the system develops memory to the antigens. It was long thought that antigens would form a bridge to mediate the cooperation of T - and B-Iymphocytes. However, it now appears that antigens are broken down to fragments which then act as carrier determinants for T -lymphocytes. The cells which originally process antigen are called an tigen-presenting cells. They have phagocytic properties. They can take up and degrade antigens, in the case of pro teins to peptides. The peptides of protein antigens reappear on the surface of the antigen-presenting cells, where they must become associated with membrane proteins encoded by genes of the major histocompatibility complex (MHC) in order to be recognized by T-Iymphocytes. To activate helper T-Iym phocytes which cooperate in antibody responses, MHC class II molecules have to be expressed on the surface of the antigen-presenting cells. Once T -lymphocytes have be come activated, they are ready to cooperate with B cells.
Author: Hilary Koprowski
Publisher: Springer Science & Business Media
ISBN: 3642714404
Category : Medical
Languages : en
Pages : 93
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Book Description
The humoral response of the immune system to a foreign antigen usually requires the recognition of two antigenic determinants. The one, called the carrier, is recognized by T-Iymphocytes, the other, called the hapten, by B-Iympho cytes. As a consequence, T - and B-Iymphocytes proliferate, B-Iymphocytes produce hapten-specific antibodies, and the system develops memory to the antigens. It was long thought that antigens would form a bridge to mediate the cooperation of T - and B-Iymphocytes. However, it now appears that antigens are broken down to fragments which then act as carrier determinants for T -lymphocytes. The cells which originally process antigen are called an tigen-presenting cells. They have phagocytic properties. They can take up and degrade antigens, in the case of pro teins to peptides. The peptides of protein antigens reappear on the surface of the antigen-presenting cells, where they must become associated with membrane proteins encoded by genes of the major histocompatibility complex (MHC) in order to be recognized by T-Iymphocytes. To activate helper T-Iym phocytes which cooperate in antibody responses, MHC class II molecules have to be expressed on the surface of the antigen-presenting cells. Once T -lymphocytes have be come activated, they are ready to cooperate with B cells.
Author: Gunnar Houen
Publisher: Humana
ISBN: 9781493929986
Category : Medical
Languages : en
Pages : 0
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Book Description
This extensive volume covers basic and advanced aspects of peptide antibody production, characterization and uses. Although peptide antibodies have been available for many years, they continue to be a field of active research and method development. For example, peptide antibodies which are dependent on specific posttranslational modifications are of great interest, such as phosphorylation, citrullination and others, while different forms of recombinant peptide antibodies are gaining interest, notably nanobodies, single chain antibodies, TCR-like antibodies, among others. Within this volume, those areas are covered, as well as several technical and scientific advances: solid phase peptide synthesis, peptide carrier conjugation and immunization, genomics, transcriptomics, proteomics and elucidation of the molecular basis of antigen presentation and recognition by dendritic cells, macrophages, B cells and T cells. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols and tips on troubleshooting and avoiding known pitfalls. Comprehensive and authoritative, Peptide Antibodies: Methods and Protocols serves as an ideal reference for researchers exploring this vital and expansive area of study.
Author: S. Muller
Publisher: Elsevier
ISBN: 008085897X
Category : Medical
Languages : en
Pages : 401
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Book Description
This newest edition to the Laboratory Techniques Series gives current state of the art use of synthetic peptides in molecular biology and practical protocols on how to conjugate peptides, immunize animals with peptides and monitor immune responses to peptides in vitro. It gives background information on antigenic specificity, prediction of antigenic sites in proteins and applications of peptides in immunology and virology, as probes in diagnosis and as vaccines. The book also describes antigenicity of proteins and methods to localize antigenic sites as well as methods for predicting epitoxes, and gives detailed protocols for peptide-carrier conjugation, immunization with peptides, and peptide immunoassays. The volume also describes typical use of antipeptide antibodies in molecular and cellular biology as well as the use of peptides in the diagnosis of viral infections and autoimmune diseases, and the use of peptides as potential synthetic vaccines. An excellent edition to an excellent series, available in hardbound and paperback.
Author: Kenneth Murphy
Publisher: Garland Science
ISBN: 9780815344575
Category : Medical
Languages : en
Pages :
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Book Description
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.
Author: M. Zouhair Atassi
Publisher: Springer Science & Business Media
ISBN: 1461518911
Category : Medical
Languages : en
Pages : 281
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Book Description
This volume summarizes the proceedings of the Eighth International Symposium on the Immunobiology of Proteins and Peptides which was held on November 16-20 in Rio Rico, Arizona. The articles represent papers by invited speakers as well as papers selected by the Scientific Council, from among those submitted by the participants, on the basis of quality and timeliness. This symposium series was established in 1976 for the purpose of bringing together, once every two or three years, active investigators in the forefront of contemporary immunology, to present their findings, discuss their significance in the light of current concepts and identify important new directions of investigation. The founding of the symposium was stimulated by the achievement of major breakthroughs in the understanding of the immune recognition of proteins and peptides. We believed that these breakthroughs would lead to the creation of a new generation of peptide reagents, which could have enormous potential in biological, therapeutic, and basic applications. This anticipated explosion has since occurred and many applications ofthese peptides are now being realized. The eighth symposium focused on the manipulation or modulation of the immune response. This volume broadly covers the areas of adjuvants, cytokines, vaccines, and the use of intravenous immunoglobulins for disease management. There is a clear need to identify methods for improving vaccine efficacy and guiding the host to respond with a particular type of immune response.
Author: M. Zouhair Atassi
Publisher: Springer Science & Business Media
ISBN: 1461588588
Category : Medical
Languages : en
Pages : 501
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Book Description
One of the central questions in immunology is the understanding in molecular terms of antigen-antibody interactions and of the cellu lar recognition of antigens. It is hoped that this understanding will extend eventually to the immunobiological basis of host defense to infectious agents and of tissue damage or deranged cell functions which stem from these reactions. A variety of natural and artificial substances have been used as models for these studies. Emphasis was placed upon substances of known and relatively uncomplicated chemical structures. These included polysaccharides, amino acid polymers, nu cleic acids and haptens. On the other hand. until recently there has been very little information on protein antigens. The complexity of these molecules posed an immense chemical obstacle to precise immuno chemical analysis. Indeed, it is this difficulty with proteins that spurred the synthesis and immunological studies of amino acid poly mers. The control and normal regulation of the immune system at the cellular-molecular interface and the great majority of antigens asso ciated with immune disorders are attributed to protein molecules. In the last few years great advances have been made in the analysis and synthesis of the antigenic sites of some proteins. The entire antigenic structures of myoglobin and lysozyme and the partial anti genic structures of several other proteins have been determined. Moreover, in the past seven years several biological responses resulting from the reactions of proteins and their peptides with cells of the immune system were described.
Author: M. Z. Atassi
Publisher: Springer Science & Business Media
ISBN: 1468479741
Category : Medical
Languages : en
Pages : 278
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Book Description
This symposia series, founded in 1976, is devoted to the advancement and dissemination of knowledge in the field in immunology, particularly as it relates to the immune recognition and responses to protein and peptide antigens. Leading investigators are convened every 2 or 3 years for the purpose of consolidating the research on protein and peptide antigens of defined structure and to focus on these findings in the context of contemporary immunology. Each symposium has focussed on a particular aspect of molecular and cellular immunology of proteins and peptides. It is extremely gratifying that, in the last 2-3 years, the scientific community has shown a heightened interest in the study and understanding of protein and peptide antigens. The third symposium was devoted to viral and bacterial antigens. Great advances have been made in recent years in the elucidation and synthesis of protein antigenic sites. These, together with advances in cloning, expression and sequencing of protein genes, have offered new avenues for the preparation of synthetic vaccines for viral, bacterial and other antigens. Such vaccines have been the aspiration of immunologists for over 20 years. The meeting has served to integrate and correlate the current knowledge of these systems with developing trends in immunology and to identify the most promising new directions for future investigations.
Author: M. Atassi
Publisher: Springer Science & Business Media
ISBN: 1475720467
Category : Medical
Languages : en
Pages : 353
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Book Description
Proceedings of the Fifth International Symposium held in Alberta, Canada, Oct. 1988. Articles are focused on the field of vaccines against viral, bacterial, and parasitic agents. Topics include: cytotoxic and helper T-lymphocyte responses to antibody, the application of molecular biology to the deve
Author: M. Zouhair Atassi
Publisher: Springer Science & Business Media
ISBN: 146152427X
Category : Medical
Languages : en
Pages : 232
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Book Description
The articles in this volume represent papers delivered by invited speakers at the 7th International Symposium on the Immunobiology of Proteins and Peptides. In addition, a few of the abstracts submitted by participants were scheduled for minisymposia and some of the authors, whose presentations were judged by the Scientific Council to be of high quality, were invited to submit papers for publication in this volume. This symposium was established in 1976 for the purpose of bringing together, once every two or three years, active investigators in the forefront of contemporary immunology, to present their findings and discuss their significance in the light of current concepts and to identify important new directions of investigation. The founding of the symposium was stimulated by the achievement of major breakthroughs in the understanding of the immune recognition of proteins and peptides. We believed that these breakthroughs will lead to the creation of a new generation of peptide reagents which should have enormous potential in biological, therapeutic, and basic applications. This anticipated explosion has in fact since occurred and many applications of these peptides are now being realized. The seventh symposium focused on immune responses that have undesirable effects on the host, hence we named them unwanted immune responses. Two major aspects of unwanted immune responses were discussed at the symposium: Allergy and Autoimmunity.
Author: M. Zouhair Atassi
Publisher: Springer Science & Business Media
ISBN: 1468443313
Category : Medical
Languages : en
Pages : 227
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Book Description
The immune response is largely dependent on molecular inter actions involving proteins. The recognition of antigen molecules, whether they are proteins or non-proteins, whether they are self or non-self, takes place at the molecular-cellular interface through membrane receptor molecules that are proteins. The initial step of recognition activates a complex series of cellular events requiring some mechanism of cell-cell interactions and communi cations, eventually leading to antibody production. This biolo gical cascade is controlled at several positions along its con secutive pathways by protein molecules, either in the free form or as receptors on membranes of cells committed to this activity. Clearly, then, the proper understanding of the response by cells of the immune system will depend, to a great measure, on the definition of the molecular events involving protein interactions. Obviously, cells work via molecules and molecules work via cells and, at this level of functional resolution, molecular immunology and cellular immunology will merge and will depend heavily on protein chemistry.
