Monocytes And Macrophages In Development Regeneration And Disease

The study and therapeutic application of macrophages is a rapidly developing field. Tremendous progress has been made in understanding the phenotypes and functions of macrophages in healthy and diseased tissues and organs. Following the great success of Volume 62: "Macrophages - Origin, Functions and Biointervention" published in this series, this new book now focuses on the role of monocytes and macrophages in development, regeneration and disease. This new volume offers an overview of the latest developments in monocyte and macrophage subtypes and functions across various tissues including adipose tissue, bones, liver, lungs, testes, and the nervous system. The book also reviews existing and potential therapies targeted towards the macrophages and describes their homeostatic functions. It explores how macrophage cell cycle, metabolism, mitochondrial activity, histone acetylation status, and interaction with the extracellular matrix contribute to changes in macrophage phenotype and function in health and disease. Additionally, it examines the interactions between macrophages and cancer cells, bacteria, helminth parasites, and their role in the colonization and spread of HIV. For ease of reference, the volume is divided into three sections: Part I Nonimmunologic and immunologic functions of monocytes/macrophages Part II Tissue/organ specific functions of macrophages Part III Macrophage functions and dysfunction in diseases This book will be of interest to researchers working in the fields of developmental biology, immunology, cancer research, and therapeutic applications. It is written to inform and inspire experts and newcomers to the field of macrophages.

With contributions by numerous experts

To produce a comprehensive overview of macrophages and related cell types in a short review volume is an impossible task. When I selected the topics to be included, some equally important areas were omitted by necessity, and for this I apologize. My choices have been somewhat eclectic, touching subjects of personal interest (such as osteoclast biology and macrophage electrophysiology) or of current fashion (apopto sis, antigen processing, cell adhesion molecules). The book has also had to encompass areas of a more general flavor to provide balance for the general reader (such as reviews of macrophage development, heterogeneity, and function, and of the surface molecules expressed by macrophages). I thank all the authors for their prompt sub missions; all have been of high quality, and my editorial tasks, thankfully, have been minimal. Michael A. Horton London, United Kingdom ix Contents Chapter J An Overview of Receptors of MPS Cells lain Fraser and Siam on Gordon 1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. The Mononuclear Phagocyte System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3. Diversity of Macrophage Plasma Membrane Receptors. . . . . . . . . . . . . . . . 6 3. 1 A Structural Approach to Classification . . . . . . . . . . . . . . . . . . . . . . . . . . 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3. 2 Multisubunit Receptors 3. 3 Soluble Receptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3. 4 Lectins and Lectin-Like Receptors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4. Functions and Selected Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4. 1 Growth, Differentiation, and Modulation . . . . . . . . . . . . . . . . . . . . . . . . 14 4. 2 Cell-Cell and Cell-Matrix Interactions. . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4. 3 Endocytosis and Scavenger Receptors. . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4. 4 Secretory Responses and Biosynthesis of Effector Molecules . . . . . . 17 5. Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6. References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 . . . . . . . . . . . . . . . . . . . .

This Volume of the series Cardiac and Vascular Biology offers a comprehensive and exciting, state-of-the-art work on the current options and potentials of cardiac regeneration and repair. Several techniques and approaches have been developed for heart failure repair: direct injection of cells, programming of scar tissue into functional myocardium, and tissue-engineered heart muscle support. The book introduces the rationale for these different approaches in cell-based heart regeneration and discusses the most important considerations for clinical translation. Expert authors discuss when, why, and how heart muscle can be salvaged. The book represents a valuable resource for stem cell researchers, cardiologists, bioengineers, and biomedical scientists studying cardiac function and regeneration.

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 authoritative handbook covers all aspects of immunosenescence, with contributions from experts in the research and clinical areas. It examines methods and models for studying immunosenescence; genetics; mechanisms including receptors and signal transduction; clinical relevance in disease states including infections, autoimmunity, cancer, metabolic syndrome, neurodegenerative diseases, frailty and osteoporosis; and much more.

Tendon Regeneration: Understanding Tissue Physiology and Development to Engineer Functional Substitutes is the first book to highlight the multi-disciplinary nature of this specialized field and the importance of collaboration between medical and engineering laboratories in the development of tissue-oriented products for tissue engineering and regenerative medicine (TERM) strategies. Beginning with a foundation in developmental biology, the book explores physiology, pathology, and surgical reconstruction, providing guidance on biological approaches that enhances tendon regeneration practices. Contributions from scientists, clinicians, and engineers who are the leading figures in their respective fields present recent findings in tendon stem cells, cell therapies, and scaffold treatments, as well as examples of pre-clinical models for translational therapies and a view of the future of the field. Provides an overview of tendon biology, disease, and tissue engineering approaches Presents modern, alternative approaches to developing functional tissue solutions discussed Includes valuable information for those interested in tissue engineering, tissue regeneration, tissue physiology, and regenerative medicine Explores physiology, pathology, and surgical reconstruction, building a natural progression that enhances tendon regeneration practices Covers recent findings in tendon stem cells, cell therapies, and scaffold treatments, as well as examples of pre-clinical models for translational therapies and a view of the future of the field

Biology of the Lymphokines discusses the scope and diversity of lymphokine research. This book focuses on the studies on lymphokines, such as those involving cellular source, chemical nature, purification strategies, and bioassay limitations. The mechanism of lymphokine action, lymphokines in vivo, and value of lymphokine quantitations are also covered. This text describes the repertoire of lymphokines produced by various lymphoblastoid cell lines and its significance for coping with the problem of large scale lymphokine production. The anti-viral and general immunoregulatory properties of interferons and rationale developed for integrating interferons with the family of lymphokines are likewise deliberated. This publication is a good source for students and researchers conducting work on lymphokines.

New updated edition first published with Cambridge University Press. This new edition includes 29 chapters on topics as diverse as pathophysiology of atherosclerosis, vascular haemodynamics, haemostasis, thrombophilia and post-amputation pain syndromes.