Quality Control of Cellular Protein in Neurodegenerative Disorders


Book Description

Protein misfolding and aggregation are hallmarks of several neurodegenerative proteinopathies. Though multiple factors like aging, oxidative stress, mitochondrial dysfunction, proteotoxic insults, genetic inconsistency, etc. are responsible for the dysfunction of the neuronal protein quality control system, targeting protein quality control has become an auspicious approach to halt the propagation of neurodegeneration. Quality Control of Cellular Protein in Neurodegenerative Disorders provides diverse aspects exploring the role of the protein quality control in neurodegenerative disorders and potential therapeutic strategies to combat the development and propagation of neurodegeneration. Featuring coverage on a broad range of topics such as molecular chaperones, protein misfolding, and stress signaling, this book is ideally designed for neurobiologists, neuropsychologists, neurophysiologists, medical professionals, neuropathologists, researchers, academicians, students, and practitioners engaged in studies of the protein quality control system in neuronal cells.




The Proteasome in Neurodegeneration


Book Description

In the last 50 years a wealth of information has allowed us to understand the contribution of various regulatory factors that alter mRNA and protein s- thesis to a variety of physiological and pathological conditions. However, such regulation is only one of many factors that contribute to the levels of a given p- tein. One major factor that has been relatively obscure until recently has been the contribution of protein degradation to the regulation of the steady state level of protein expression and protein function. This rapidly evolving field has made a significant mark on the scientific community, as highlighted by the Award of the Nobel Prize in Chemistry for 2004 to Aaron Ciechanover, Avram Hershko and Irwin Rose for their pioneering work on the ubiquitin-proteasome system (UPS) of protein degradation, which is the subject of this volume. In recent years e- dence has been accumulating that suggests a role for UPS function in both ph- iological and pathological settings. In particular, studies have implicated a central role for the UPS in cell cycle regulation, cancer and neurodegeneration. Two points are however worth bearing in mind: First, ubiquitin’s function appears to extend far beyond the UPS and protein degradation; second, there are other important systems of intracellular protein degradation, most notably autophagic systems through the lysosomes, and these may also be involved in disease pat- physiology.




Proteostasis and Disease


Book Description

This book, written by members of the European network PROTEOSTASIS, provides an up-to-date review of the research regarding protein homeostasis in health and disease. With new discoveries contributing to the increasing complexity of this topic, the book offers a detailed overview of the pathways regulating protein homeostasis, including autophagy and the ubiquitin protein family. Following a basic introduction, it explains how defects in protein homeostasis contribute to numerous pathologies, including cancer, neurodegeneration, inflammation and a number of rare diseases. In addition, it discusses, the role of protein homeostasis in cellular development and physiology. Highlighting the latest research in the field of protein homeostasis and its implications for various clinically relevant diseases, the book appeals to researchers and clinicians, while also offering a reference guide for scholars who are new to the field.




Ubiquitin and the Biology of the Cell


Book Description

The last several years have been a landmark period in the ubiquitin field. The breadth of ubiquitin's roles in cell biology was first sketched, and the importance of ubiquitin-dependent proteolysis as a regulatory mechanism gained general acceptance. The many strands of work that led to this new perception are re counted in this book. A consequence of this progress is that the field has grown dramatically since the first book on ubiquitin was published almost a decade ago [M. Rechsteiner (ed. ), Ubiquitin, Plenum Press, 1988]. In this span, students of the cell cycle, transcription, signal transduction, protein sorting, neuropathology, cancer, virology, and immunology have attempted to chart the role of ubi quit in in their particular experimental systems, and this integration of the field into cell biology as a whole continues at a remarkable pace. We hope that for active researchers in the field as well as for newcomers and those on the fence, this book will prove helpful for its breadth, historical perspective, and practical tips. Structural data are now available on many of the components of the ubiquitin pathway. The structures have provided basic insights into the unusual biochemical mechanisms of ubiquitination and proteasome-mediated proteolysis. Because high-speed computer graphics can convey structures more effectively than print media, we have supplemented the figures of the book with a Worldwide Web site that can display the structures in a flexible, viewer-controlled format.




The Proteasome — Ubiquitin Protein Degradation Pathway


Book Description

This volume gives an overview of pro tea some-mediated protein degradation and the regulatory role of the ubiquitin system in cellular proteolysis. The first chapter describes the molecular evolution of the proteasome and its associated activators, i. e. , the 20S core, the base and the lid of the 19S cap, and the 11 S regulator. The ensuing chapter gives an overview of the structure and assembly of the 20S proteasome and the regulation of the archaeal proteasome by PAN. The third contribution summarizes our knowledge on the eukaryotic 26S proteasome and its regulation by the 19S regu lator, followed by a chapter devoted to the llS regulator, which elucidates the structural basis for the 11 S-mediated activation of the 20S proteasome. The fifth chapter reviews in detail the role of the proteasome in the immune response. The subsequent chapter of the natural substrates of the gives a comprehensive description proteasome and their recognition by the enzymes of the ubiqui tination machinery. The penultimate chapter rounds up the in formation on intracellular distribution of proteasomes in yeast and mammalian cells, while the last contribution highlights proteasome inhibitors, tools which proved to be very valuable for dissecting the cellular roles of the proteasome and which might turn out to be of pharmacological importance.




Neuropathology of Neurodegenerative Diseases


Book Description

This practical guide to the diagnosis of neurodegenerative diseases discusses modern molecular techniques, morphological classification, fundamentals of clinical symptomology, diagnostic pitfalls and immunostaining protocols. It is based on the proteinopathy concept of neurodegenerative disease, which has influenced classification and provides new strategies for therapy. Numerous high-quality images, including histopathology photomicrographs and neuroradiology scans, accompany the description of morphologic alterations and interpretation of immunoreactivities. Diagnostic methods and criteria are placed within recent developments in neuropathology, including the now widespread application of immunohistochemistry. To aid daily practice, the guide includes diagnostic algorithms and offers personal insights from experienced experts in the field. Special focus is given to the way brain tissue should be handled during diagnosis. This is a must-have reference for medical specialists and specialist medical trainees in the fields of pathology, neuropathology and neurology working with neuropathologic features of neurodegenerative diseases.




Protein Carbonylation


Book Description

Protein carbonylation has attracted the interest of a great number of laboratories since the pioneering studies at the Earl Stadtman’s lab at NIH started in early 1980s. Since then, detecting protein carbonyls in oxidative stress situations became a highly efficient tool to uncover biomarkers of oxidative damage in normal and altered cell physiology. In this book, research groups from several areas of interest have contributed to update the knowledge regarding detection, analyses and identification of carbonylated proteins and the sites where these modifications occur. The scientific community will benefit from these reviews since they deal with specific, detailed technical approaches to study formation and detection of protein carbonyls. Moreover, the biological impact of such modifications in metabolic, physiologic and structural functions and, how these alterations can help understanding the downstream effects on cell function are discussed. Oxidative stress occurs in all living organisms and affects proteins and other macromolecules: Protein carbonylation is a measure of oxidative stress in biological systems Mass spectrometry, fluorescent labelling, antibody based detection, biotinylated protein selection and other methods for detecting protein carbonyls and modification sites in proteins are described Aging, neurodegenerative diseases, obstructive pulmonary diseases, malaria, cigarette smoke, adipose tissue and its relationship with protein carbonylation Direct oxidation, glycoxidation and modifications by lipid peroxidation products as protein carbonylation pathways Emerging methods for characterizing carbonylated protein networks and affected metabolic pathways




Macromolecular Protein Complexes III: Structure and Function


Book Description

This book covers important topics such as the dynamic structure and function of the 26S proteasome, the DNA replication machine: structure and dynamic function and the structural organization and protein–protein interactions in the human adenovirus capsid, to mention but a few. The 18 chapters included here, written by experts in their specific field, are at the forefront of scientific knowledge. The impressive integration of structural data from X-ray crystallography with that from cryo-electron microscopy is apparent throughout the book. In addition, functional aspects are also given a high priority. Chapter 1 is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.




Protein Degradation in Health and Disease


Book Description

Protein degradation has been identified as a major mechanism for the regulation of cellular functions. Not surprisingly, its deregulation is implied in almost any pathological condition. This book describes how aged proteins are eliminated during cell metabolism, how cell proliferation is regulated by protein degradation and how its deregulation can contribute to the development of cancer, how protein degradation is modified during normal and abnormal aging, in particular with regard to Alzheimer's disease and other degenerative diseases of the brain and central nervous system. Attempts aiming at correcting these pathologies by interfering with deviations of the normal pathway of protein degradation are also treated.




Neurodegenerative Diseases


Book Description

This book highlights the pathophysiological complexities of the mechanisms and factors that are likely to be involved in a range of neuroinflammatory and neurodegenerative diseases including Alzheimer's disease, other Dementia, Parkinson Diseases and Multiple Sclerosis. The spectrum of diverse factors involved in neurodegeneration, such as protein aggregation, oxidative stress, caspases and secretase, regulators, cholesterol, zinc, microglia, astrocytes, oligodendrocytes, etc, have been discussed in the context of disease progression. In addition, novel approaches to therapeutic interventions have also been presented. It is hoped that students, scientists and clinicians shall find this very informative book immensely useful and thought-provoking.