Enzyme Assays

Angiogenesis, the development of new blood vessels from the existing vasculature, is essential for physiological growth and over 18,000 research articles have been published describing the role of angiogenesis in over 70 different diseases, including cancer, diabetic retinopathy, rheumatoid arthritis and psoriasis. One of the most important technical challenges in such studies has been finding suitable methods for assessing the effects of regulators of eh angiogenic response. While increasing numbers of angiogenesis assays are being described both in vitro and in vivo, it is often still necessary to use a combination of assays to identify the cellular and molecular events in angiogenesis and the full range of effects of a given test protein. Although the endothelial cell – its migration, proliferation, differentiation and structural rearrangement – is central to the angiogenic process, it is not the only cell type involved. the supporting cells, the extracellular matrix and the circulating blood with its cellular and humoral components also contribute. In this book, experts in the use of a diverse range of assays outline key components of these and give a critical appraisal of their strengths and weaknesses. Examples include assays for the proliferation, migration and differentiation of endothelial cells in vitro, vessel outgrowth from organ cultures, assessment of endothelial and mural cell interactions, and such in vivo assays as the chick chorioallantoic membrane, zebrafish, corneal, chamber and tumour angiogenesis models. These are followed by a critical analysis of the biological end-points currently being used in clinical trials to assess the clinical efficacy of anti-angiogenic drugs, which leads into a discussion of the direction future studies should take. This valuable book is of interest to research scientists currently working on angiogenesis in both the academic community and in the biotechnology and pharmaceutical industries. Relevant disciplines include cell and molecular biology, oncology, cardiovascular research, biotechnology, pharmacology, pathology and physiology.

Cell assays include all methods of measurements on living cells. Confined for a long time to research laboratories, these emerging methods have, in recent years, found industrial applications that are increasingly varied and, from now on, regulatory. Based on the recent explosion of knowledge in cell biology, the measurement of living cells represents a new class of industry-oriented research tests, the applications of which continue to multiply (pharmaceuticals, cosmetics, environment, etc.). Cellular tests are now being positioned as new tools at the interface between chemical methods, which are often obsolete and not very informative, and methods using animal models, which are expensive, do not fit with human data and are widely discussed from an ethical perspective. Finally, the development of cell assays is currently being strengthened by their being put into regulatory application, particularly in Europe through the REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) and cosmetic directives.

This book highlights the applications of coupled bioluminescence assay techniques to real-world problems in drug discovery, environmental and chemical analysis, and biodefense. It separates theoretical aspects from the applied sections in a clear and readable way. Coupled Bioluminescent Assays, explains the uses of CB technologies across drug discovery to analyze toxicity, drug receptors, and enzymes. It covers applications in environmental analysis and biodefense, including cytotoxicity, fertilizer and explosives analysis, and nerve agent and pesticide detection. This is the premier reference on coupled bioluminescent assays for chemists, biochemists, and molecular biologists.

Practical Enzyme Kinetics provides a practical how-to guide for beginning students, technicians, and non-specialists for evaluating enzyme kinetics using common software packages to perform easy enzymatic analyses.

Sets the stage for advances in drug discovery using the latest enzyme technology Reviewing new and emerging applications of enzyme technology in drug discovery, this book highlights some of the most promising areas of pharmaceutical and biotechnology research. It covers enzyme assay technology, utilization of enzymology for prodrug design, and the application of enzymes as therapeutic agents. Expert reviews highlight how our latest understanding of enzymology is used to develop new practical applications in drug discovery and design. Filled with case studies, Enzyme Technologies: Pluripotent Players in Discovering Therapeutic Agents enables readers to better understand the diverse functions of enzymes and master specific applications in drug discovery research. In addition to small molecule drug discovery, the book explores new developments in enzymes as therapeutic agents for genetic disorders. Section A, Enzymes – Essential Workhorses in Pharmaceutical Research, offers support in selecting the best enzyme targets for drug discovery, designing enzyme inhibitors for therapeutic agents, and evaluating selective enzyme inhibitors. Section B, Enzymes – Indispensable Tools for Improving Druggability, sets forth the principles alongside real-world examples of exploiting specific properties of enzymes to design successful prodrugs. Section C, Enzymes – Powerful Weapons for Correcting Nature's Errors, provides new insights on applying enzymes as therapeutic agents or diagnostic tools to treat genetic disorders. Chapters are contributed by leading experts from around the world. Their contributions are based on a thorough review of the current literature as well as their own research. Reviewing our latest understanding of the nature of enzymes and their role in drug discovery, this book is recommended for researchers in pharmaceuticals and biotechnology as well as for researchers in enzymology, biochemistry, molecular biology, and medicinal chemistry.

This new, expanded and updated edition of the user-friendly and comprehensive treatise on enzyme kinetics expertly balances theory and practice. This is an indispensable aid for advanced students and professionals working with enzymes, whether biochemists, biotechnologists, chemical biologists, pharmacologists or bioengineers in academia, industry and clinical research.

Now in full color for a more intuitive learning experience, this new edition of the long-selling reference also features a number of new developments in methodology and the application of enzyme kinetics. Starting with a description of ligand binding equilibria, the experienced author goes on to discuss simple and complex enzyme reactions in kinetic terms. Special cases such as membrane-bound and immobilized enzymes are considered, as is the influence of external conditions, such as temperature and pH value. The final part of the book then covers a range of widely used measurement methods and compares their performance and scope of application. With its unique mix of theory and practical advice, this is an invaluable aid for teaching as well as for experimental work.

The use of cell-based assays within pharmaceutical and biotechnology companies is driven in large part by the need to evaluate the plethora of drug targets derived from genomics and proteomics. In addition, the potential of biomarkers to facilitate the development of effective and safe drugs is being recognized as an integral part of all phases of drug development, and cell-based technologies are a critical part of biomarker discovery and development. Despite this critical role, cell-based assays have not been standardized and made compliant with Good Laboratory Practice guidelines. In this book, the editors have collected assays for which validation procedures have been developed, making this a vital purchase for anyone using such assays in drug development. This book: Describes the development, optimization and validation of cell-based assays, including procedural documentation required for Good Laboratory Practice Presents validations of cell-based assays for select targets, with step-by-step instructions, allowing the reader to reproduce the assay conditions and results Provides details of techniques used in the evaluation of immunodeficiency, autoimmune and oncological disorders, including assessment of cancer vaccines Offers a compendium of validation parameters that need to be considered when using these methods to develop a new drug Includes detailed protocols for the evaluation of cytokines and of neutralizing antibodies directed against protein therapeutics Validation of Cell-based Assays in the GLP Setting provides the professional with an invaluable reference source, featuring key guidelines. The book will prove extremely useful to all scientists working in the areas of drug development.

An authoritative review of the latest developments in the chemical biology of enzymes In the first decade of the twenty-first century, enzymes and their multiple applications have played a critical role in the discovery and development of many new therapeutic agents.This book is a coordinated compilation of research expertise and current opinion uniquely focused on enzymes and their properties and applications. Compiled by editors with a combined pharmaceutical experience of over sixty years, the text provides in-depth reviews of recent developments in selective topics on biosynthesis, biocatalysis, and chemical biology of enzymes as it applies to drug discovery, development, and manufacture. The first in a multi-part series on enzymes, this volume features three sections: New Approaches to Find and Modify Enzymes describes the emerging field of metagenomics, presents the practical applications of directed evolution to enzymes and pathways, and explores approaches for the discovery and design of biocatalysts Biocatalytic Applications reviews specific applications of different reactions in producing active pharmaceutical ingredients and surveys recent developments employing enzymes in organic synthesis Biosynthetic Applications goes over successful drug discoveries and developments by combinatorial biosynthesis and reviews the application of combinatorial biosynthesis among multiple compatible hosts These timely discussions, which cover everything from chemical biology of enzymes, to the redesign of binding and catalytic specificities of enzymes, make this volume a valuable tool for keeping up to date. As such, it is an important read for researchers, students, and professors in the study of biotechnology, life sciences, biochemistry, enzymology, medicinal chemistry, and natural products.

This systematic and comprehensive overview of enzyme-based biocomputing is an excellent resource for scientists and engineers working on the design, study and applications of enzyme-logic systems.