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Arrest chemokines are a small group of chemokines that promote leukocyte arrest from rolling by triggering rapid integrin activation. Arrest chemokines have been described for neutrophils, monocytes, eosinophils, naïve lymphocytes and effector memory T cells. Most arrest chemokines are immobilized on the endothelial surface by binding to heparin sulfate proteoglycans. Whether soluble chemokines can promote integrin activation and arrest is controversial (Alon-Gerszten). Many aspects of the signaling pathway from the GPCR chemokine receptor to integrin activation are the subject of active investigation. Leukocyte adhesion deficiency III is a human disease in which chemokine-triggered integrin activation is defective because of a mutation in the cytoskeletal protein kindlin-3. About 10 different such mutations have been described. The defects seen in patients with LAD-III elucidate the importance of rapid integrin activation for host defense in humans. We welcome reports that help clarifying this crucial first step in the process of leukocyte transendothelial migration.
Chemokines play an important role in recruiting inflammatory cells into tissues in response to infection and inflammation. They also play an important role in coordinating the movement of T-cells, B-cells and dentritic cells, necessary to generate an immune response (response to injury, allergens, antigens, invading microorganisms). They selectively attract leukocytes to inflammatory foci, inducing both cell migration and activation. They are involved in various diseases, like atherosclerosis, lung and skin inflammation, multiple sclerosis, or HIV. Volume 2 of this two-volume set discusses the pathophysiology of chemokines. It is divided into two parts: a) chemokines in animal disease models, and b) chemokines as drug targets. Together with volume 1, which discusses the immunobiology of chemokines, both volumes give a comprehensive overview of chemokine biology.
This volume in the Current Topics in Membranes series discusses the biology of chemokines and their binding partners, chemokine receptors, in normal and disease-related states. Chemokines are small proteins that are important in normal immune responses. Recent research demonstrates a role for these proteins in a variety of diseases such as heart disease, allergy, asthma, and cancer. As a result of the discovery of this link to disease, the topic of chemokines and drugs that block their actions has become an intense are of study. This book presents the topics of chemokines, chemokine receptors, and related pathologies in an integrated manner that provides the reader with a comprehensive and up-to-date knowledge of these topics. Provides a comprehensive overview of the history, molecular biology, cell biology, pharmacology, physiology, and pathophysiology of chemokines and their receptors Each chapter discusses "future directions and unanswered questions" of chemokine biology Serves as a road map for future research
The chemokines family of small proteins are involved in numerous b- logical processes ranging from hematopoiesis, angiogenesis, and basal l- kocyte trafficking to the extravasation and tissue infiltration of leukocytes in response to inflammatory agents, tissue damage, and bacterial or viral infection. Chemokines exert their effects through a family of seven G-protein coupled transmembrane receptors. Worldwide interest in the chemokine field surged dramatically early in 1996, with the finding that certain chemokine receptors were the elusive coreceptors, required along with CD4, for HIV infection. Today, though over 40 human chemokines have been described, the n- ber of chemokine receptors lags behind—only 17 human chemokine receptors have been identified so far. What has emerged over the years is that most chemokine receptors bind several distinct ligands, and indeed the majority of chemokines are able to bind to multiple chemokine receptors, explaining to some extent the apparent disparity in the numbers of chemokines and rec- tors. Yet in spite of the apparent redundancy in chemokine/chemokine rec- tor interactions, it is clear that in vivo, spatial, temporal, and indeed cell- and tissue-specific expression of both chemokines and their receptors are imp- tant factors in determining the precise nature of cellular infiltrates in phy- ological and pathological processes.
How do you keep track of basic information on the proteins you work with? Where do you find details of their physicochemical properties, amino acid sequences, gene organization? Are you tired of scanning review articles, primary papers and databases to locate that elusive fact? The Academic Press FactsBook series will satisfy scientists and clinical researchers suffering from information overload. Each volume provides a catalog of the essential properties of families of molecules. Gene organization, amino acid sequences, physicochemical properties, and biological activity are presented using a common, easy-to-follow format. Taken together they compile everything you want to know about proteins but are too busy to look for. The Chemokine FactsBook contains more than 40 entries on chemokines, and chemokine receptors from human or other origin, including IL-8, MCP-1, C5-a, RANTES, Lymphotactin, and CC CKR-1. The text provides information on tissue sources, target cells, physicochemical properties, transcription factors, regulation of expression in disease, receptor-binding characteristics, gene structure and location, amino acid sequences, and accession numbers and references. Contains over 40 entries on chemokines and chemokine receptors from human or other origin, including: IL-8 MCP-1 C5-a RANTES Lymphotactin CC CKR-1 Entries provide information on: Tissue sources Target cells Physicochemical properties Transcription factors Regulation of expression Expression in disease Receptor-binding characteristics Gene structure and location Amino acid sequences Database accession numbers References
Caroline Hébert and a panel of key experimentalists and clinical investigators comprehensively review the state-of-the-art in the chemokine field, ranging from the effects of chemokines and their receptors in retroviral infections, to their role in inflammation, angiogenesis/angiostasis, and tumor cell biology. The book examines in detail fifteen recently identified chemokines and elucidates the role of chemokine function in vivo from animal experiments. Animal models are also used to explore how chemokines operate in a variety of chronic and acute inflammatory diseases and in noninflammatory processes. A detailed review of the emerging role of chemokines in viral biology is also presented, with emphasis on HIV biology and novel therapeutic possibilities. Chemokines in Disease: Biology and Clinical Research summarizes the rapidly expanding knowledge of a dazzling array of chemokines and provides fresh insights into the development of powerful new drugs for treating a wide spectrum of diseases.
This volume, new to The Receptors series, focuses on several areas, including the birth, maturation, and structure of Chemokines; Neutrophil, Dendritic, and Lymphocyte trafficking; and Chemokine Receptors in diseases such as AIDs and lung cancer. In particular the book contains cutting-edge information ranging from basic molecular and cellular mechanisms to physiological and pathological roles of chemokines.
The Ernst Schering Workshop on Chemokine Roles in Immunoregulation and Disease, with contributions by leading experts in the field, succinctly summarizes cutting-edge research in immunology, protein chemistry, and disease. This book gives an up-to-date overview of important developments in immunology with a concise, state-of-the-art review of chemokines. It is a time-saving reference for both researchers and students, providing fast and easy access to the latest information in this important area of research.
Chemokines are the cytokines that may activate or chemoattract leukocytes. Each chemokine contains 65-120 amino acids, with molecular weight of 8-10 kD. Their receptors belong to G-protein-coupled receptors. Inflammatory chemokines are released from a wide variety of cells in response to bacterial infection, viruses and agents that cause physical damage such as silica or the urate crystals that occur in gout. They function mainly as chemoattractants for leukocytes, recruiting monocytes, neutrophils and other effector cells from the blood to sites of infection or damage. They can be released by many different cell types and serve to guide cells involved in innate immunity and also the lymphocytes of the adaptive immune system. The cells that are attracted by chemokines follow a signal of increasing chemokine concentration to the site of infection or tissue injury. Some chemokines also have roles in the development of lymphocytes, migration and angiogenesis (the growth of new blood vessels).Since the entry of HIV into host cells requires chemokine receptors, their antagonists are being developed to treat AIDS.
This book is a printed edition of the Special Issue "Regulation of Chemokine-Receptor Interactions and Functions" that was published in IJMS