[PDF] Rna Exosome eBook

Author : Torben Heick Jensen
Publisher : Springer Science & Business Media
Page : 161 pages
File Size : 25,91 MB
Release : 2011-06-29
Category : Medical
ISBN : 1441978410

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The diversity of RNAs inside living cells is amazing. We have known of the more “classic” RNA species: mRNA, tRNA, rRNA, snRNA and snoRNA for some time now, but in a steady stream new types of molecules are being described as it is becoming clear that most of the genomic information of cells ends up in RNA. To deal with the enormous load of resulting RNA processing and degradation reactions, cells need adequate and efficient molecular machines. The RNA exosome is arising as a major facilitator to this effect. Structural and functional data gathered over the last decade have illustrated the biochemical importance of this multimeric complex and its many co-factors, revealing its enormous regulatory power. By gathering some of the most prominent researchers in the exosome field, it is the aim of this volume to introduce this fascinating protein complex as well as to give a timely and rich account of its many functions. The exosome was discovered more than a decade ago by Phil Mitchell and David Tollervey by its ability to trim the 3’end of yeast, S. cerevisiae, 5. 8S rRNA. In a historic account they laid out the events surrounding this identification and the subsequent birth of the research field. In the chapter by Kurt Januszyk and Christopher Lima the structural organization of eukaryotic exosomes and their evolutionary counterparts in bacteria and archaea are discussed in large part through presentation of structures.

Author : John LaCava
Publisher : Springer Nature
Page : 514 pages
File Size : 18,69 MB
Release : 2019-11-25
Category : Medical
ISBN : 1493998226

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This volume provides a cross-section of RNA exosome research protocols, applied to a diversity of model organisms. Chapters guide readers through methods that e.g. delineate eukaryotic exosomes’ origins in prokaryotes, probe its RNA substrates, adapter complexes and macromolecular interaction of networks, and establish critical structural-function relationships. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, The Eukaryotic RNA Exosome: Methods and Protocols aims to ensure successful results in the further study of this vital field.

Author : Debalina Bhattacharya
Publisher : Elsevier
Page : 378 pages
File Size : 26,46 MB
Release : 2024-04-15
Category : Science
ISBN : 0443140073

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Exosomal RNA: Role in Human Diseases and Therapy provides an in-depth study of exosomes and their RNA in the context of a variety of diseases. The book explores the diagnostic and therapeutic potential of exosomal RNA as biomarkers across a range of different conditions, including cancer, type 2 diabetes, cardiovascular and renal disease, as well as bacterial infections and tissue repair. The link between exosomal RNA expression and neurodegenerative disease is also explored. The book goes on to share the significance of exosomal RNA in preserving cellular function, with special attention given to their role in the autophagy process. This book gives an overview of the isolation, characterization, and potential applications of exosomal RNA, providing researchers with an understanding of how they can be manipulated and utilized for the treatment of various diseases and conditions. This is an ideal reference for researchers in the field of molecular biology, cell biology, and related fields, as well as those involved in the development of therapeutics and personalized medicine. Provides an introduction into exosomal RNA and their potential as predictive and diagnostic biomarkers for various conditions Considers exosomal RNA in a variety of human disorders, including metabolic diseases, inflammatory diseases, and cancer Discusses the role of exosomal RNA in preserving the cellular environment and its role in the autophagy process

Author : Matthew Alan Bratkowski
Publisher :
Page : 209 pages
File Size : 20,29 MB
Release : 2012
Category :
ISBN :

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The RNA exosome is a multi-subunit protein complex involved in RNA maturation, surveillance, and turnover of cellular RNA. It is composed of a nine subunit core that contains an RNA binding central channel and associates with the additional subunit Rrp44. Rrp44 contains a 3' to 5' processive exoribonuclease activity and an endoribonuclease activity in its N-terminal PIN domain. The exosome is present in both the nucleus and cytoplasm. In the nucleus, the exosome associates with a second nuclease, Rrp6, which is a distributive 3' to 5' exoribonuclease. Although a wealth of studies have helped to characterize the exosome, it is still not entirely clear how the exosome core functions in concert with these two nucleases to degrade RNA. In this dissertation, I present structural and biochemical studies of both the Rrp44 and Rrp6 bound exosome. In particular, I have attempted to crystallize a sub-complex of Rrp44 bound to the exosome, and present data that suggest that structured RNA can access Rrp44 without being first channeled through the exosome. Despite this conclusion, the exosome core still appears to down-regulate both the exonuclease and endonuclease activities of Rrp44, possibly by causing the protein to assume a conformation that prohibits it from promiscuous RNA degradation. Work on the Rrp6 containing exosme was conducted in attempts of obtaining an EM reconstruction of this complex. Crystallization of an RNA and Rrp6 binding exosome associated iii protein, Rrp47, was also attempted alone and in complex with Rrp6. Overall, the results that I present here will help to further characterize the function of the exosome in RNA mediated degradation. iv.

Author : Marlene Oeffinger
Publisher : Springer Nature
Page : 318 pages
File Size : 12,23 MB
Release : 2019-12-06
Category : Science
ISBN : 3030314340

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The book provides an overview on the different aspects of gene regulation from an mRNA centric viewpoint, including how mRNA is assembled and self-assembles in a complex consisting of RNA and proteins, and how its ability to be translated at the right time and space depends on many processes acting on the mRNAs, leading to a properly folded complex. This book shows how new technologies have led to a better understanding of these processes and their connected diseases.The book is written for scientists in fundamental and applied biomedical research working on different aspects of gene regulation. It is also targeted to an audience that is not implicated in these fields directly, but wants to gain a better understanding of mRNA biology.

Author : Yaoliang Tang
Publisher : Academic Press
Page : 287 pages
File Size : 14,21 MB
Release : 2015-09-02
Category : Science
ISBN : 0128004975

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Mesenchymal stem cell-derived exosomes are at the forefront of research in two of the most high profile and funded scientific areas – cardiovascular research and stem cells. Mesenchymal Stem Cell Derived Exosomes provides insight into the biofunction and molecular mechanisms, practical tools for research, and a look toward the clinical applications of this exciting phenomenon which is emerging as an effective diagnostic. Primarily focused on the cardiovascular applications where there have been the greatest advancements toward the clinic, this is the first compendium for clinical and biomedical researchers who are interested in integrating MSC-derived exosomes as a diagnostic and therapeutic tool. Introduces the MSC-exosome mediated cell-cell communication Covers the major functional benefits in current MSC-derived exosome studies Discusses strategies for the use of MSC-derived exosomes in cardiovascular therapies

Author : Junjie Xiao
Publisher : Springer
Page : 300 pages
File Size : 13,24 MB
Release : 2017-09-19
Category : Science
ISBN : 9811043973

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The book provides and intensive overview on exosomes in cardiovascular diseases, its potential as biomarkers, as well as pathological and therapeutic effects. It firstly describes the general aspects of exosomes including the definition, formation and secretion of exosomes and highlight their roles as biomarkers and pathological and therapeutic effects in cardiovascular diseases as well. Secondly, basic aspects of exosomes including the purification methods of exosomes, exosomes content, and functional roles of the cardiovascular exosomes are summarized. Thirdly, exosomes as biomarkers of cardiovascular diseases are overviewed including their roles in diagnosis, prognosis and reaction to therapy. Fourthly, pathological effects of exosomes and therapeutic effects of exosomes are highlighted. Finally, future prospects of exosomes in cardiovascular research would be provided. This is an essential reference for researchers working in cell biology and regeneration, as well as clinicians such as cardiologist.

Author : Andrew F Hill
Publisher : Humana
Page : 0 pages
File Size : 39,69 MB
Release : 2016-12-10
Category : Science
ISBN : 9781493967261

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This volume covers methods for the analysis of extracellular vesicles (EV) that can be applied to isolated EVs from a wide variety of sources. This includes the use of electron microscopy, tunable resistance pulse sensing, and nanoparticle tracking analysis. The chapters in this book discuss EV cargoes containing proteins and genomic materials using a number of different approaches, and isolating EVs from platelets and neuronal cells and tissues. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Practical and comprehensive, Exosomes and Microvesicles: Methods and Protocols is a valuable resource containing methodologies for anyone interested in researching EVs.