Prostaglandins, Leukotrienes and Other Eicosanoids


Book Description

Polyunsaturated fatty acids are essential for human cell metabolism. As precursors of a very large and extremely versatile family of signaling compounds they play a key role in intracellular communication. Eicosanoids constitute one of the most abundant and prominent subfamilies of these fatty acid derivatives which are formed primarily along oxidative pathways. Prostaglandins, leukotrienes, and related eicosanoids have a modulatory function in mammalian cells and are responsible for tissue responses such as inflammation or wound repair. Increasing activity in eicosanoid research sheds new light on today's most common diseases including atherosclerosis, cancer, Alzheimer's, allergies, and rheumatic diseases. The recent advances already have far-reaching implications in medicine. This detailed account, written by leading experts, covers the ground-breaking developments in recent eicosanoid research. The topics span eicosanoid biogenesis, new aspects of their pathophysiology, for example their influence on the cardiovascular system, as well as the clinical application of synthetic eicosanoids and their antagonists. Researchers and students working in biochemistry or in pharmaceutical, physiological, medicinal and neurochemistry will value this informative introduction to one of the most rapidly developing fields in cell biology.




The Leukotrienes


Book Description

The Leukotrienes, Chemistry and Biology discusses the significant scientific progress of leukotrienes, from the discovery of slow-reacting substance to the chemical identification of a mixture of leukotrienes. Composed of 11 chapters, the book presents an enormous increase in research on the chemistry and biology of these and related substances, especially as they relate to the etiology of allergic and inflammatory diseases. After briefly discussing the continuing perspectives on the leukotriene biology, the book describes the structure, synthesis, formation, and biological actions of leukotrienes. This is followed by a discussion on arachidonic metabolism for the development of therapeutic agents specifically designed to either inhibit the synthesis or antagonize the effects of the leukotrienes. The book also looks into the biochemical and pharmacologic control of the synthesis and actions of leukotrienes. The information is considered in the context of the specific enzymes in the pathway that may be affected by any given agent. The in vivo studies on the pulmonary mechanical effect of leukotrienes, the pharmacologic activity of leukotriene receptors, and the antagonistic property of peptidoleukotrienes as an approach to allergic disease treatment are considered in the concluding chapters of the book. This book will be of value to scientists and researchers interested in hypersensitivity reactions, inflammation, and allergic diseases.




Prostaglandins, Leukotrienes, and the Immune Response


Book Description

This study looks at the way the products of arachidonic acid metabolism are active both in normal and abnormal immune responses. While some of the fundamental issues such as whether lymphocytes are capable of producing prostaglandins and leukotrienes are still hotly debated, the evidence is overwhelming that many specific immunological problems and disease states are associated with alterations in the normal balance of arachidonic acid metabolism. This book provides a review of the history and chemistry of the arachidonic acid cascade as well as an exhaustive survey of the literature concerning the interaction of arachidonic acid metabolites with cells of the immune system. The author also presents and discusses the evidence demonstrating prostaglandin and leukotriene participation in response to injury and in malignancy, tissue and organ rejection, rheumatoid arthritis, autoimmunity and allergy.




Prostaglandins


Book Description

This work gathers together in a single source essays contributed by 75 authors from around the world on all aspects of prostaglandins and related eicosanoids, which are of growing importance in biomedical science.




Prostaglandins: Chemical and Biochemical Aspects


Book Description

This is the second in a series of three books on advances in prostaglandin research. In recent years there has been an unparalleled interest in these compounds and as a result a vast amount of research data has accumulated since the publication of my earlier book in 1972. At that time it was possible to present a fairly comprehensive review of the various aspects of prosta glandin research in one volume. This is no longer possible and the contents are divided into three volumes; the first one dealing with prostaglandins and reproduction was published in October 1975; the present volume dealing with chemical and biochemical aspects of prostaglandin research, to be published in April 1976 and the third book dealing with physiological, pharmacological and pathological aspects of prostaglandin research wiII be published in May 1976. The authorship represents international scientists consisting of physiolo-. gists, pharmacologists, chemists, biochemists, veterinary scientists and obstetrician gynaecologists actively engaged in different areas of prosta glandin research. An attempt has been made to provide a total coverage of advances relating to prostaglandins. For the sake of completeness and continuity, material covered in the 1972 book is either briefly summarised or reference made to that edition. In recent years there have been notable advances in the chemical and biochemical aspects of prostaglandin research and these are discussed by various authorities in the chapters that follow.




Prostaglandins and Thromboxanes


Book Description

Prostaglandins and Thromboxanes explores the two members of the prostanoid class of fatty acid. This book attempts to thoroughly discuss the topic after collecting enough information through research in physical and biological sciences. As the title suggests, the book revolves around prostaglandins and thromboxanes. The book's first chapter contains a discussion on the subject's history, stating the year of discovery and crediting the scientist who coined the names. The chapter ends talking about the possible uses of prostaglandins and thromboxanes in the clinic. The chapters that follow discuss the two lipids' basic and advanced synthesis, pharmacology, biosynthesis, biological activity, chemical interconversions, and metabolism, along with its subtopics. The book will serve as an excellent reference for undergraduate and graduate students in the related field.




The Eicosanoids


Book Description

This comprehensive reference work, updated from the first edition, brings together the knowledge and expertise of contributors from around the world. It includes new topics such as prostaglandin synthetase enzyme, new synthetic eicosanoids, innovative analytical methods, the influence of cytokines in the regulation of synthesis and actions, newer eicosanoids that influence the cardiovascular system, and newly discovered roles in reproduction and interactions with nitric oxide. This book satisfies a surge of interest in prostaglandins—NSAIDS (e.g. aspirin) are the biggest selling drugs of all time, and the field has been refreshed by the advent of new types (selective COX-2 inhibitors, anti-leukotiene drugs).




Biochemistry of Arachidonic Acid Metabolism


Book Description

Prostaglandins, Leukotrienes, and Cancer is a multi-volume series that will focus on an emerging area of cancer research. In 1968, R.H. Williams first reported that elevated prostaglandin levels are present in human medullary car­ cinoma. Since that time, the concept that arachidonic acid metabolites may be in­ volved in cancer has expanded to include every aspect of the disease from cell transformation through metastasis. Prostaglandins and leukotrienes are generic terms used to describe a family of bioactive lipids produced from unsaturated fatty acids (principally from arachidonic acid) via the cyclooxygenase and lipoxygenase pathways, respec­ tively. Cyclooxygenase products consist of diverse products such as prosta­ glandin E, (POE,), prostacyclin (POI2) and thromboxane A2 (TXA2), whereas lipoxygenase products consist of hydroperoxy fatty acids and mono-, di- and tri-hydroxy acids including leukotrienes. The precursor fatty acids for the cyclooxygenase and lip oxygenase pathways are present in cellular phospholipids. This finding established an important control point in their biosynthesis-the release of substrate. This occurs in response to numerous stimuli that act at the cell surface. Dr. Bengt Samuelsson's extensive study of the metabolism of pros­ taglandins indicated that they are rapidly inactivated on a single pass through pulmonary circulation. Thus, they cannot act as circulating hormones and appear to be made on demand in or in the vicinity of target tissues leading to the concept that prostaglandins are local hormones or autocoids.