Macrophages Biology And Tissue Inflammation In Health And Disease

Macrophages Biology and Tissue Inflammation in Health and Disease, outlines the important role of macrophages, keys cells in the innate immune system, as regulators and orchestrators of inflammation and repair in health and disease. It contains chapters by leading authors on the basic and translational aspects of macrophage biology, in maintaining tissue homeostatis and dealing with internal and external biological threats. Outlines the important role of macrophages, key cells in the innatue immune system, as regulators and orchestrators of inflammation and repair in health and disease Contains chapters by leading authors on the basic and translational aspects of macrophage biology, in maintaining tissue homeostasis Deals with internal and external treats

Macrophages are a key component of the innate immune system and play an integral role in host defense and homeostasis. On one hand, these cells contribute to host defence by triggering inflammation, displaying microbicidal/tumoricidal properties, regulating the activation of adaptive immunity and promoting resolution of inflammation. On the other hand, they contribute to essential trophic functions such as neural patterning, bone morphogenesis and ductal branching in mammary glands. Thus, macrophages are extremely versatile cells that can respond efficiently to tissue micro environmental cues by polarizing to distinct phenotypes, depending on the functions they need to perform. Indeed, functional diversity and plasticity are hallmarks of these cells. Macrophages may also play a detrimental role. An overwhelming body of literature has indicated their crucial role in pathogenesis. The list includes sepsis, cancer, metabolic syndrome, immunodeficiency, auto-immune disease-virtually impacting every major pathology that we know. These observations have suggested macrophages and their related molecules as potential targets in therapeutic applications. Available evidence proclaims macrophages as a key player in homeostasis, host defense and disease. Crucial developments in the past few years call for a re-evaluation and update of our understanding of macrophages. The present book is an endeavour that attempts provide state-of-the art knowledge of these cells in health and disease.

Obesity and its co-morbidities, including atherosclerosis, insulin resistance and diabetes, are a world-wide epidemic. Inflammatory immune responses in metabolic tissues have emerged as a universal feature of these metabolic disorders. While initial work highlighted the contribution of macrophages to tissue inflammation and insulin resistance, recent studies demonstrate that cells of the adaptive immune compartment, including T and B lymphocytes and dendritic cells also participate in obesity-induced pathogenesis of these conditions. However, the molecular and cellular pathways by which the innate and adaptive branches of immunity control tissue and systemic metabolism remain poorly understood. To engage in growth and activation, cells need to increase their biomass and replicate their genome. This process presents a substantial bioenergetic challenge: growing and activated cells must increase ATP production and acquire or synthesize raw materials, including lipids, proteins and nucleic acids. To do so, they actively reprogram their intracellular metabolism from catabolic mitochondrial oxidative phosphorylation to glycolysis and other anabolic pathways. This metabolic reprogramming is under the control of specific signal transduction pathways whose underlying molecular mechanisms and relevance to physiology and disease are subject of considerable current interest and under intense study. Recent reports have elucidated the physiological role of metabolic reprogramming in macrophage and T cell activation and differentiation, B- and dendritic cell biology, as well as in the crosstalk of immune cells with endothelial and stem cells. It is also becoming increasingly evident that alterations of metabolic pathways play a major role in the pathogenesis of chronic inflammatory disorders. Due to the scientific distance between immunologists and experts in metabolism (e.g., clinicians and biochemists), however, there has been limited cross-talk between these communities. This collection of articles aims at promoting such cross-talk and accelerating discoveries in the emerging field of immunometabolism.

The structure, functions, and interactions of myeloid cells have long been the focus of research and therapeutics development. Yet, much more remains to be discovered about the complex web of relationships that makes up the immune systems of animals. Scientists today are applying genome-wide analyses, single-cell methods, gene editing, and modern imaging techniques to reveal new subclasses of differentiated myeloid cells, new receptors and cytokines, and important interactions among immune cells. In Myeloid Cells in Health and Disease: A Synthesis, Editor Siamon Gordon has assembled an international team of esteemed scientists to provide their perspectives of myeloid cells during innate and adaptive immunity. The book begins by presenting the foundational research of Paul Ehrlich, Elie Metchnikoff, and Donald Metcalf. The following chapters discuss evolution and the life cycles of myeloid cells; specific types of differentiated myeloid cells, including macrophage differentiation; and antigen processing and presentation. The rest of the book is organized by broad topics in immunology, including the recruitment of myeloid and other immune cells following microbial infection the role of myeloid cells in the inflammation process and the repair of damaged tissue the vast arsenal of myeloid cell secretory molecules, including metalloproteinases, tumor necrosis factor, histamine, and perforin receptors and downstream signaling pathways that are activated following ligand-receptor binding roles of myeloid cells during microbial and parasite infections contributions of myeloid cells in atherosclerosis myeloid-derived suppressor cells in tumor development and cancer Myeloid Cells in Health and Disease: A Synthesis will benefit graduate students and researchers in immunology, hematology, microbial pathogenesis, infectious disease, pathology, and pharmacology. Established scientists and physicians in these and related fields will enjoy the book's rich history of myeloid cell research and suggestions for future research directions and potential therapies.

One, No one, One Hundred Thousand - The Multifaceted Role of Macrophages in Health and Disease - Part A, provides in-depth reviews on the last progresses on the role of macrophages in health and diseases with a special focus on the role of macrophages in SARS-COV2, breast cancer, liver and salivary glands. Provides accurate reviews from selected experts on the topic of macrophages in different tissues such as lung, uterus, breast and liver Each chapter of the volume provides useful graphic material for ease of reading of the audience Provides the latest insights and future perspectives on macrophage heterogeneity in different diseases

Translational Inflammation links laboratory and clinical data within primary and secondary care to clinical research data and offers a holistic and innovative approach to chronic inflammation and ageing. Understanding the role of inflammation as a part of clinical disease states is becoming a valuable tool in both direct treatment and the development of therapeutics. Translational Inflammation, the 4th volume in the Perspectives in Translational Cell Biology series, offers content for professors, students and researchers across basic and translational biology. Emphasizes the role of inflammation in disease and therapeutic approaches Integrates broad concepts relating inflammation to other fields Offers a bridge to review literature and primary research on the inflammatory response towards medical application

One, No One, One Hundred Thousand - The Multifaceted Role of Macrophages in Health and Disease - Part B, Volume 369 provides in-depth reviews on the last progresses on the role of macrophages in health and diseases, with a special focus on the role of macrophages during development. New chapters cover The role of salivary gland macrophages in infection, disease and repair, Reprogramming or replacing brain macrophages to treat neurodegenerative disease, Targeting macrophages for cancer immunotherapy, Heart Macrophages at steady-state and disease: simple bystanders or active players?, Macrophages in the liver, and Developmental programming of macrophages. Provides accurate reviews from selected experts on the topic of macrophages in different tissues such as gut, kidney and heart Presents useful graphic material for ease of reading and learning for users Covers the latest insights and future perspectives on macrophage heterogeneity in different diseases

This book provides readers with an up-to-date and comprehensive view on the resolution of inflammation and on new developments in this area, including pro-resolution mediators, apoptosis, macrophage clearance of apoptotic cells, possible novel drug developments.

"This Ebook is edited by Sandra Hodge, a recognized expert in the field of macrophage dysfunction in chronic lung disease. The book consists of 8 chapters which provide a full coverage of macrophage function in both healthy and chronically diseased lungs, "

In many developing and emerging societies, the coexistence of malnutrition and obesity is becoming increasingly prevalent. Caused by a rapid change in terms of economic growth and increased availability of food, the main challenge of this nutrition transition is the balance between short-term benefits and long-term risks of increased metabolic diseases.The publication at hand starts with an epidemiological overview, including regional case studies from India, China and Africa. This is followed by an in-depth evaluation of the phenomenon, focussing on the origin and prevalence of malnutrition and its link to obesity, the possible mechanisms of metabolic injury, and the strategies for preventing the projected epidemic of non-communicable disease. Also stressed is the need for further research to determine which population segments should be targeted at what stages of their lifecycle in order to achieve optimal results.Written by an international panel of experts, this volume will be of particular value for pediatricians, perinatologists, obstetricians, endocrinologists, public health scientists and epidemiologists.

Using as a theme the encounter between protozoan parasites and macrophages, this volume brings together cell biologists, immunologists and protozoologists to review current developments in this broad and dynamic research area. Discussed are ways protozoans establish their intracellular niche, how they activate macrophage effector functions, what th

Macrophages have unique and diverse functions necessary for survival. And, in humans (and other species), they are the most abundant leukocytes in tissues. The Innate functions of macrophages that are best known are their unusual ability to either “Kill” or “Repair”. Since killing is a destructive process and repair is a constructive process, it was stupefying how one cell could exhibit these 2 polar – opposite functions. However, in the late 1980’s, it was shown that macrophages have a unique ability to enzymatically metabolize Arginine to Nitric Oxide (NO, a gaseous non – specific killer molecule) or to Ornithine (a precursor of polyamines and collagen for repair). The dual Arginine metabolic capacity of macrophages provided a functional explanation for their ability to kill or repair. Macrophages predominantly producing NO are called M1 and those producing Ornithine are called M2. M1 and M2 – dominant responses occur in lower vertebrates, and in T cell deficient vertebrates being directly driven by Damage and Pathogen Associated Molecular Patterns (DAMP and PAMP). Thus, M1 and M2 are Innate responses that protect the host without Adaptive Immunity. In turn, M1/M2 is supplanting previous models in which T cells were necessary to “activate” or “alternatively activate” macrophages (the Th1/Th2 paradigm). M1 and M2 macrophages were named such because of the additional key findings that these macrophages stimulate Th1 and Th2 – like responses, respectively. So, in addition to their unique ability to kill or repair, macrophages also govern Adaptive Immunity. All of the foregoing would be less important if M1 or M2 – dominant responses were not observed in disease. But, they are. The best example to date is the predominance of M2 macrophages in human tumors where they act like wound repair macrophages and actively promote growth. More generally, humans have become M2 – dominant because sanitation, antibiotics and vaccines have lessened M1 responses. And, M2 dominance seems the cause of ever - increasing allergies in developed countries. Obesity represents a new and different circumstance. Surfeit energy (e.g., lipoproteins) causes monocytes to become M1 dominant in the vessel walls causing plaques. Because M1 or M2 dominant responses are clearly causative in many modern diseases, there is great potential in developing the means to selectively stimulate (or inhibit) either M1 or M2 responses to kill or repair, or to stimulate Th1 or Th2 responses, depending on the circumstance. The contributions here are meant to describe diseases of M1 or M2 dominance, and promising new methodologies to modulate the fungible metabolic machinery of macrophages for better health.

This book offers a comprehensive study of C-reactive protein (CRP) belonging to the pentraxin family, including a brief history of CRP, its structure, synthesis and evolution. Focusing on the emerging role of CRP and its clinical application in the field of disease biology, it details the pathophysiological role of CRP in a host of diseases such as cardiovascular disease, diabetes, cancers, rheumatoid arthritis and infectious diseases and others. It also discusses the role of innate immunity and acute phase response (APR) and their key mediators in the host body in response to tissue injury, infection, trauma or surgery, immunological disorders or neoplastic growth. CRP’s significance in inflammation is highlighted, and its importance as a clinical marker in cardiovascular disease, its functional significance in Leishmania and Plasmodium infections, its association with the development of insulin resistance in type 2 diabetes mellitus, and its role in cancer are discussed in detail. The book also includes clinical data studies and presents the latest research advances to further readers’ understanding of CRP.

This timely and most comprehensive reference available on the topic covers all the different aspects vital in the fight against the global obesity epidemic. Following a look at adipose tissue development and morphology, the authors go on to examine its metabolic and endocrine functions and its role in disease. The final section deals with comparative and evolutionary aspects of the tissue. The result is an essential resource for cell and molecular biologists, physiologists, biochemists, pharmacologists, and those working in the pharmaceutical industry.

Macrophages were initially identified as a key element in the innate host response to infection and injury due to their phagocytic clearance and elimination of pathogenic and non-pathogenic entities. However, as macrophage research advanced it became clear that not only are these cells amenable to the acquisition of multiple plastic phenotypes during inflammatory responses to different pathogens, they also play a paramount role in the termination of inflammation and acquired immune responses. In addition, macrophages profoundly affect host physiology when they migrate to distant sites and differentiate to specialized cells, like foam cells, osteoclasts, adipose tissue- and tumor -associated macrophages and other macrophage-derived cell types. These processes are affected by the inflammation-resolution axis and can result in health threats, such as atherosclerosis, bone loss, obesity, fibrosis and cancer. This Research Topic issue will cover a wide range of topics in macrophage biology: 1. Macrophages in immune responses to pathogens 2. Macrophages in the termination of acute and acquired immunity. 3. The role of macrophages and their descendents in inflammation-associated pathologies. 4. Macrophage polarization and differentiation. Particular focus will be given to the modulation of macrophage phenotype and function following their encounter with apoptotic cells and the signaling cascades that govern these changes.

Clearance of apoptotic cells is essential for proper development, homeostasis and termination of immune responses in multicellular organisms. Thus, cellular and molecular players taking part in the sequential events of this process are of great interest. Research in the last 20 years has indicated that specific ligands and receptors take part in the attraction of immune cells toward apoptotic targets and in the interactions between apoptotic cells and professional as well as non-professional phagocytes that engulf them. Moreover, phagocytosis of apoptotic cells (efferocytosis) leads to significant phenotypic changes in the engulfing cells suggesting that it is a major fate-determining event for phagocytes. Particularly, efferocytosis has an important impact on the inflammation-resolution axis as well as embryonic development and tissue morphogenesis. Deficiencies in these processes can result in health threats, such as autoimmunity, atherosclerosis, bone loss, obesity, infertility, neurodegeneration, fibrosis and cancer. This eBook brings together 24 original research and review manuscripts that cover various aspects of apoptotic cell removal during normal development and homeostasis as well as in tumorigenesis and regenerative processes following injury.

The field of adipose tissue biology has been expanding at a very rapid pace in the last few years. Numerous advances have been made since publication of the first edition of this book, in terms of basic adipocyte biology, understanding of the determinants of obesity, distribution of body fat and weight loss, as well as the mechanisms linking excess adiposity to various co-morbidities. Adipose Tissue and Adipokines in Health and Disease, Second Edition contains updated chapters from the previous volume but as the field has evolved, some areas covered in the first edition have been refocused to address the new knowledge. The volume is divided in four sections: the first two deal with basic adipose tissue and adipokine biology, while the last two address the problem of obesity and alterations in adipose tissue function from an epidemiological and clinical standpoint. The chapters are written by experts in their fields and include the most up to date scientific information. Adipose Tissue and Adipokines in Health and Disease, Second Edition is a useful resource for physicians interested in adipose tissue biology and basic scientists who want to know more about applied aspects of the field. The book targets endocrinologists, residents and fellows, internists, nutritionists and general practitioners who are exposed to an ever-expanding obese population.