Download or read book Contemporary Topics in Molecular Immunology V 6 written by G. L. Ada and published by . This book was released on 1977 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contemporary Topics in Molecular Immunology written by Gordon Ada and published by . This book was released on 1974-09-01 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contemporary Topics in Molecular Immunology written by R. Porter and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: The distinction between molecular immunology and immunobiology is neces sarily arbitrary. The most rapid progress is usually made in the blurred area between the two, when the chemist is aware of the full significance of the biological problems, and the biologist is alert to the contribution that a knowl edge of molecular structure can be made to their solution. The range of scientific disciplines able to contribute to research in immunology, which this approach brings, is reflected in the present volume. Protein chemists worked out the arrangement of the polypeptide chains and the amino acid sequences of antibodies and X-ray crystallographers the three dimensional structure, but more precise definition of the amino acid side chain positions in the combining site is required for an understanding of the subtleties of antibody specificity. That this can be achieved with physical techniques such as nuclear magnetic resonance has been shown by R. A. Dwek, and in his chapter he summarizes these results with a minimum of technical detail. The immune response has been shown to be dependent on complex cellular interactions and further progress will be facilitated by investigation of the molecular basis of these interactions. This necessitates study of the structure and organization of the molecules in the surfaces of lymphocytes and other cells.
Download or read book Contemporary Topics in Molecular Immunology written by and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contemporary Topics in Molecular Immunology written by R. Reisfeld and published by . This book was released on 2014-01-15 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contemporary Topics in Molecular Immunology V 3 written by Ralph A. Reisfeld and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contemporary Topics in Molecular Immunology written by Gordon Ada and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of volumes devoted to molecular immunology will contain, for the most part, articles which attempt to explain immunological phenomena in terms of the behavior and properties of particular molecules. Many of the articles in this volume do this. At the same time, there are many instances-and this is particularly so in the case of immunology-where phenomena must first be described and interpreted in terms of the properties and behavior of cells. Most of us would hope that in due course a fuller understanding will be forthcoming. This volume starts off with such a contribution. Perhaps the most fascinat ing problem in immunology is how diversity is generated. There are two broad proposals: (1) that complete information exists ab initio (the germ-line theory), and (2) that there is initially a limited amount of information, and diversity is generated by somatic mutation. The issue is unresolved, but Cunningham has taken many of the data which have previously been used to support the germ-line theory and shows that the interpretations are not always clear-cut and can frequently be used to support another possibility-that new specificities may arise after stimulation of appropriate cells by antigens. And he has produced experimental evidence to support this notion. On the other hand, there can be little doubt that to a considerable degree the specificity of the immune response is determined by the selection by antigen of cells with receptors of appropriate specificity. This is essentially a surface phenomenon.
Download or read book Contemporary Topics in Molecular Immunology written by F. Inman and published by Springer. This book was released on 2013-01-23 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: recipients and acceptance of allografts can be made. The authors have the experi ence and ability to bridge the entire field of transplantation and their article encompasses both clinical and immunochemical data in this area. Their data show clearly that matches for the DR antigens are more important than those at the ABC loci in determination of graft survival. Additional relevant factors, in cluding autoimmunity and other B-cell antigens, are discussed and correlated with graft survival. The authors also present pathology data concerning the distribution of HLA-DR antigens in various tissues. These data indicate a fruitful area for future investigations on the chemical aspects of the various antigens encoded within the human MHC. Do changes in the structure of lymphocyte surface glycoproteins, especially changes in their carbohydrate portions, occur during normal lymphoid differen tiation? Information about this question is limited, and pertinent data are avail able for only a few proteins. Three of the proteins are major glycoprotein con stituents of rodent thymocyte membranes: the Thy-! antigen, a glycosylated leukocyte sialoglycoprotein called W3/13, and a high-molecular-weight glycopro tein known as the leukocyte-common antigen. In his contribution, Pink thor oughly characterizes these glycoproteins and discusses the evidence that the structures change when a thymocyte differentiates into a mature, peripheral T cell. A comparison is drawn between lymphocyte glycoprotein changes and those that occur during red blood cell differentiation. The reader will find Pink's discourse informative and provocative. Mast cells, basophils, and related tumor lines bind IgE with very high affinity.
Download or read book Contemporary Topics in Immunobiology written by Max Cooper and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contemporary immunobiology is an ever-diversifying field that embraces many aspects of cellular and humoral immune responsiveness. This includes the phylogeny, ontogeny, induction, regulation, expression, and differentiation of the immune-cell series, as well as the relationship of these to the pathogenesis of many disease processes. It is clearly beyond the limitations of each volume in this series to comprehensively cover progress in each of these fields. Three general areas of contemporary investigations are discussed in the current issue: cellular events of B cell differentiation, including antigen recognition and respon siveness of B lymphocytes; regulation of the immune response by T cells, and the roles of this regulatory system in allotype suppression and in autoimm unity; and the genetic control of immune responses and its possible relation to disease pathogenesis. Analysis of responsiveness of B lymphocytes has been greatly aided by the availability of athymic nude mice. The immunological responsiveness of these mice to a wide range of stimuli has been reviewed and analyzed by H. H. Wortis. This article concludes with the provocative thesis that in the future "nudes will supply new rather than confirmatory data . . . (especially regarding) the develop ment of neoplasia. " In contrast to the studies on the congenitally athymic mice, G. F.
Download or read book Contemporary Topics in Molecular Immunology written by H. Eisen and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Immunochemistry, recently rechristened molecular immunology, has been pre occupied throughout its long history with the structure and function of antibodies and the specificity of antibody-antigen reactions. With the recent X-ray diffrac of several crystallized immunoglobulin (Ig) fragments and a whole tion analyses Ig molecule, the three-dimensional structure of antibodies and their ligand combining sites has been realized, marking the concluding stages of a phase of immunological research that can be traced back at least 75 years. At the same time chemically minded immunologists have been moving in new directions. A substantial beginning in one direction has been made with the purification of messenger RNAs (mRNAs) for Ig chains. Hybridization of these RNAs (or their DNA copies made with the enzyme reverse transcriptase) to cell DNA is beginning to provide convincing estimates of the number of germ-line Ig genes. And some hybridization studies have already yielded suggestive evidence for translocation of V and C genes from separate to contiguous positions in DNA isolated from cells at different stages of differentiation. Moreover, in vitro trans lation of Ig mRNAs has revealed a remarkably hydrophobic stretch of about 20 amino acids at the N-terminus of the nascent Ig chain. This extra piece is absent in the Ig extracted from or secreted by plasma cells, presumably because it is rapidly cleaved from the "preimmunoglobulin" chain within the cell, but the extra piece probably plays a key role in directing the synthesis of prelg to the cell's secretory pathway.
Download or read book Contemporary Topics in Molecular Immunology written by F. Inman and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: recipients and acceptance of allografts can be made. The authors have the experi ence and ability to bridge the entire field of transplantation and their article encompasses both clinical and immunochemical data in this area. Their data show clearly that matches for the DR antigens are more important than those at the ABC loci in determination of graft survival. Additional relevant factors, in cluding autoimmunity and other B-cell antigens, are discussed and correlated with graft survival. The authors also present pathology data concerning the distribution of HLA-DR antigens in various tissues. These data indicate a fruitful area for future investigations on the chemical aspects of the various antigens encoded within the human MHC. Do changes in the structure of lymphocyte surface glycoproteins, especially changes in their carbohydrate portions, occur during normal lymphoid differen tiation? Information about this question is limited, and pertinent data are avail able for only a few proteins. Three of the proteins are major glycoprotein con stituents of rodent thymocyte membranes: the Thy-! antigen, a glycosylated leukocyte sialoglycoprotein called W3/13, and a high-molecular-weight glycopro tein known as the leukocyte-common antigen. In his contribution, Pink thor oughly characterizes these glycoproteins and discusses the evidence that the structures change when a thymocyte differentiates into a mature, peripheral T cell. A comparison is drawn between lymphocyte glycoprotein changes and those that occur during red blood cell differentiation. The reader will find Pink's discourse informative and provocative. Mast cells, basophils, and related tumor lines bind IgE with very high affinity.
Download or read book Contemporary Topics in Molecular Immunology written by R. A. Reisfeld and published by Springer Science & Business Media. This book was released on 2013-12-01 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: New information is developing so rapidly in the entire field of immunology that one is unable to remain abreast of all advancing fronts. In many cases, consider able information has accumulated as the result of the efforts of many investigators, but the conclusions from the various laboratories have not been summarized recently in a comprehensible manner. One such situation has to do with work on IgD. An up-to-date report on this immunoglobulin was included in Volume 10f this series, but since that time there has been considerable progress in the deter mination of its structure and function. In the present volume Leslie and Martin have reviewed the accomplishments of recent years and the problems remaining to be solved. New information regarding the concentration of IgD in body fluids in normal and disease states is presented. Studies of the ontogeny of surface IgD in animals are described, and the fmdings imply that it may be important in the primary immune response. The role of IgD on lymphocyte surfaces is thoroughly discussed especially in terms of stimulating or suppressive combinations of signals delivered to the lymphocyte by agents which bind or alter the surface rt:ceptors. The authors conclude by proposing a model for plasma-cell differentiation which accounts fo~ the existence of triple Ig-bearing cells, many IgM-IgD-bearing cells, and the low percentage of cells bearing a single isotype. Sometimes the serum of an individual contains abnormally large amounts of two distinct, homogeneous populations of immunoglobulins.
Download or read book Serial Holdings written by CDC Library (U.S.) and published by . This book was released on 1979 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CDC Library Serial Holdings written by CDC Library (U.S.) and published by . This book was released on with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Catalog written by National Library of Medicine (U.S.) and published by . This book was released on 1993 with total page 1628 pages. Available in PDF, EPUB and Kindle. Book excerpt: First multi-year cumulation covers six years: 1965-70.
Download or read book Contemporary Topics in Molecular Immunology written by F. P. Inman and published by . This book was released on 1985 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contemporary Topics in Immunobiology written by John J. Marchalonis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem that virtually all cells have in discriminating between "self" and "non-self" molecules and cells has been considered at great length in immuno biology. However, cells that clearly are incapable of carrying out mammalian type immune functions can exhibit exquisite specificity in their capacity to discriminate among syngeneic, allogeneic, and xenogeneic cells. In this volume of Contemporary Topics in Immunobiology we have chosen to consider the general problem of self/non-self discrimination as it is manifest in recognition reactions of plants and invertebrates and in the evolutionary development of the immune response of vertebrates. A broad, many-faceted approach is taken toward fundamental issues in immunobiology in order to develop innovative concepts of receptor function as well as to delineate traditional views. The capacity of plants to discriminate between self and non-self is addressed in Chapter 1 by R. B. Knox and Adrienne E. Clarke. These authors provide examples of cell-cell recognition in plants that parallel those occurring in in vertebrates and vertebrates. In general, tolerance (acceptance) of grafts is re stricted to plants within closely related genera. Recognition is mediated by callus cells, which proliferate at wound surfaces in higher plants, and there is a correlation between cell and tissue type and antigenic markers detectable with the use of mammalian antibodies. Certain flowering plants exhibit precise discrimination in fertilization, when pollen must be from the same species, but fertilization occurs only if the pollen is genetically non-self.
