Download or read book Chromatin and Epigenetic Regulation of Herpes Simplex Virus 1 Lytic Genomes written by MiYao Hu and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Primary herpes simplex virus 1 (HSV-1) infections are common in childhood, affecting mainly the oropharyngeal mucosa. The virus is then transported to the neuronal bodies in the trigeminal ganglia, where it establishes lifelong latency. Although latent infections are asymptomatic, HSV-1 reactivates upon a variety of stresses, producing recrudescence of disease and spreading infection. Lytic infections are treated with several drugs, but latency and reactivation cannot be cured or prevented. HSV-1 chromatin and epigenetic regulation during lytic and latent infections have been studied for decades. HSV-1 genomes are regularly chromatinized into inaccessible chromatin during latency but become more accessible during reactivation. Epigenetics thus likely play a major role in the regulation of HSV-1 transcription, replication, and reactivation from latency. Although HSV-1 DNA is non-regularly chromatinized in lytic infections, most current models assume a similar epigenetic regulation for HSV-1 as for cells. To evaluate the chromatinization of HSV-1 genomes during lytic infections, I performed nuclease protection assay coupled with bio-physical fractionation, to separate viral DNA-nucleoprotein complexes by hydrodynamic ratios, followed by deep sequencing (in collaboration with Dr. Depledge) of each fraction. Gene sampling and cluster analyses indicated that chromatin dynamics relate to the transcriptional competency of HSV-1 genomes, not the transcriptional levels of any individual genes or groups of genes. The transcriptionally competent genomes are in highly dynamic, and accessible, chromatin and the incompetent ones in far less dynamic, or accessible, chromatin. Moreover, chromatin insulator elements such as the CCCTC binding factor (CTCF) flank highly transcribed genome regions from mostly non-transcribed ones. My findings indicate that chromatin is a key regulator of HSV-1 transcription during lytic infections in that chromatin provide a first level of regulation, dictating transcriptional competency. I thus uncovered a new level of viral transcription regulation. During reactivation, the HSV-1 chromatin also changes from regular, mostly inaccessible, chromatin to a far more dynamic, and accessible, state. My findings during the lytic infections thus also provide a framework to better understand HSV-1 latency and reactivation.
Download or read book Chromatin and Coactivators in Herpes Simplex Virus Type 1 Gene Regulation written by Sebla Bulent Kutluay and published by . This book was released on 2009 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Epigenetic Regulation of Lytic and Latent Herpes Simplex Virus 1 Infection written by Jennifer Sohn Lee and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In latent infection, HSV-1 undergoes epigenetic silencing as a means to suppress gene expression and persist in neurons. Surprisingly, in this study, we find that ICP0-null viruses accumulate less heterochromatin on lytic gene promoters relative to WT viruses. This suggests that ICP0 may function to promote infection of neurons, or assist in the establishment or maintenance of latent infection.
Download or read book Human Herpesviruses written by Ann Arvin and published by Cambridge University Press. This book was released on 2007-08-16 with total page 1325 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive account of the human herpesviruses provides an encyclopedic overview of their basic virology and clinical manifestations. This group of viruses includes human simplex type 1 and 2, Epstein–Barr virus, Kaposi's Sarcoma-associated herpesvirus, cytomegalovirus, HHV6A, 6B and 7, and varicella-zoster virus. The viral diseases and cancers they cause are significant and often recurrent. Their prevalence in the developed world accounts for a major burden of disease, and as a result there is a great deal of research into the pathophysiology of infection and immunobiology. Another important area covered within this volume concerns antiviral therapy and the development of vaccines. All these aspects are covered in depth, both scientifically and in terms of clinical guidelines for patient care. The text is illustrated generously throughout and is fully referenced to the latest research and developments.
Download or read book Epigenetics and Chromatin written by Philippe Jeanteur and published by Springer Science & Business Media. This book was released on 2005-01-10 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a comprehensive overview on chromatin structure and function in combination with an epigenetic view. It offers an updated collection of papers treating epigenetic phenomena in mammals, insects and plants.
Download or read book Regulation and Export of ICP27 During Herpes Simplex Virus Type 1 Lytic Infection written by Anna Karin Strain and published by . This book was released on 2007 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Epstein Barr Virus written by M. A. Epstein and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Epstein-Barr virus was discovered 15 years ago. Since that time an immense body of information has been accumu lated on this agent which has come to assume great signifi cance in many different fields of biological science. Thus, the virus has very special relevance in human medicine and oncology, in tumor virology, in immunology, and in mole cular virology, since it is the cause of infectious mononu cleosis and also the first human cancer virus, etiologically related to endemic Burkitt's lymphoma and probably to nasopharyngeal carcinoma. In addition, continuous human lymphoid cell lines initiated and maintained by the transform ing function of the virus genome provide a laboratory tool with wide and ever-growing applications. Innumerable papers on the Epstein-Barr virus have ap peared over recent years and reports of work with this agent now constitute a veritable flood. The present book provides the first and only comprehensive, authoritative over-view of all aspects of the virus by authors who have been the original and major contributors in their particular disciplines. A complete and up-to-date survey of this unique and important agent is thus provided which should be of great interest to experts, teachers, and students engaged in cancer research, virology, immunology, molecular biology, epide miology, and cell culture. Where topics have been dealt with from more than one of these viewpoints, some inevitable overlap and duplication has resulted; although this has been kept to a minimum, it has been retained in some places because of positive usefulness.
Download or read book Herpesvirus Latency written by Benedikt B. Kaufer and published by Frontiers Media SA. This book was released on 2020-09-14 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Download or read book Epstein Barr Virus Volume 1 written by Christian Münz and published by Springer. This book was released on 2015-10-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epstein Barr virus (EBV) was discovered as the first human tumor virus around 50 years ago. Since its discovery in Burkitt’s lymphoma it has been associated with various other malignancies, infectious mononucleosis and even autoimmune diseases. The two book volumes on EBV summarize the first 50 years of research on this tumor virus, starting with historical perspectives on discovery, oncogenicity and immune control, reviewing the role that the virus plays in the various associated diseases and concluding with a discussion on how the immune system keeps persistent EBV infection under control in healthy EBV carriers and can be used to treat EBV associated diseases. The respective 32 chapters are written by international experts from three continents for health care providers, biomedical researchers and patients that are affected by EBV. The assembled knowledge should help to understand EBV associated diseases better and to develop EBV specific vaccination in the near future.
Download or read book HIV 1 Latency written by Guido Silvestri and published by Springer. This book was released on 2018-10-11 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume summarizes recent advances in understanding the mechanisms of HIV-1 latency, in characterizing residual viral reservoirs, and in developing targeted interventions to reduce HIV-1 persistence during antiretroviral therapy. Specific chapters address the molecular mechanisms that govern and regulate HIV-1 transcription and latency; assays and technical approaches to quantify viral reservoirs in humans and animal models; the complex interchange between viral reservoirs and the host immune system; computational strategies to model viral reservoir dynamics; and the development of therapeutic approaches that target viral reservoir cells. With contributions from an interdisciplinary group of investigators that cover a broad spectrum of subjects, from molecular virology to proof-of-principle clinical trials, this book is a valuable resource for basic scientists, translational investigators, infectious-disease physicians, individuals living with HIV/AIDS and the general public.
Download or read book Human Herpesviruses written by Yasushi Kawaguchi and published by Springer. This book was released on 2018-06-12 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces and reviews several topics for each human herpesvirus. One of the most important features of the book is that it covers aspects of both basic research and clinical medicine. Herpesviridae, a family of double-strand DNA viruses, has unique biological features by which these viruses establish latency after primary infection and reactivate in later life. Nine human herpesviruses are known so far, and each of them causes a variety of diseases in both primary infection and reactivation. Since the discovery of each human herpesvirus, an abundance of findings related to them has accumulated in basic research and clinical medicine. However, the vast majority of biological features is still masked in mystery. Furthermore, a strategy of treatment and prevention has not yet been established for most human herpesviruses. A wide range of readers will be interested in this volume with its treatment of problematic points and latest findings in the field.
Download or read book Neural Crest Stem Cells written by Maya Sieber-Blum and published by World Scientific. This book was released on 2012 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers readers an understanding of the development of neural crest cells, which is crucial as many birth defects and tumours are of neural crest origin. Delving into stem cells from different locations of the body, this book explores the best possible source of such cells for the use in medical applications.
Download or read book Epstein Barr Virus Volume 2 written by Christian Münz and published by Springer. This book was released on 2015-10-01 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epstein Barr virus (EBV) was discovered as the first human tumor virus around 50 years ago. Since its discovery in Burkitt’s lymphoma it has been associated with various other malignancies, infectious mononucleosis and even autoimmune diseases. The two book volumes on EBV summarize the first 50 years of research on this tumor virus, starting with historical perspectives on discovery, oncogenicity and immune control, reviewing the role that the virus plays in the various associated diseases and concluding with a discussion on how the immune system keeps persistent EBV infection under control in healthy EBV carriers and can be used to treat EBV associated diseases. The respective 32 chapters are written by international experts from three continents for health care providers, biomedical researchers and patients that are affected by EBV. The assembled knowledge should help to understand EBV associated diseases better and to develop EBV specific vaccination in the near future.
Download or read book Latency Strategies of Herpesviruses written by Janos Minarovits and published by Springer Science & Business Media. This book was released on 2006-12-13 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides an overview of the latency strategies developed during the estimated 200,000 year-long coevolution of Alpha-, Beta- and Gammaherpesvirinae and their host species. While the main emphasis is on herpesviruses infecting humans, relevant cases if herpesviruses infecting animals are covered as well. Special emphasis is given to results on molecular mechanisms regulating latent promoters of herpesvirus genomes and signals and molecular pathways resulting in reactivation of latent viral genomes.
Download or read book Viruses Essential Agents of Life written by Günther Witzany and published by Springer Science & Business Media. This book was released on 2012-11-13 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: A renaissance of virus research is taking centre stage in biology. Empirical data from the last decade indicate the important roles of viruses, both in the evolution of all life and as symbionts of host organisms. There is increasing evidence that all cellular life is colonized by exogenous and/or endogenous viruses in a non-lytic but persistent lifestyle. Viruses and viral parts form the most numerous genetic matter on this planet.
Download or read book DNA Methylation and Complex Human Disease written by Michel Neidhart and published by Academic Press. This book was released on 2015-08-11 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: DNA Methylation and Complex Human Disease reviews the possibilities of methyl-group-based epigenetic biomarkers of major diseases, tailored epigenetic therapies, and the future uses of high-throughput methylome technologies. This volume includes many pertinent advances in disease-bearing research, including obesity, type II diabetes, schizophrenia, and autoimmunity. DNA methylation is also discussed as a plasma and serum test for non-invasive screening, diagnostic and prognostic tests, as compared to biopsy-driven gene expression analysis, factors which have led to the use of DNA methylation as a potential tool for determining cancer risk, and diagnosis between benign and malignant disease. Therapies are at the heart of this volume and the possibilities of DNA demethylation. In cancer, unlike genetic mutations, DNA methylation and histone modifications are reversible and thus have shown great potential in the race for effective treatments. In addition, the authors present the importance of high-throughput methylome analysis, not only in cancer, but also in non-neoplastic diseases such as rheumatoid arthritis. - Discusses breaking biomarker research in major disease families of current health concern and research interest, including obesity, type II diabetes, schizophrenia, and autoimmunity - Summarizes advances not only relevant to cancer, but also in non-neoplastic disease, currently an emerging field - Describes wholly new concepts, including the linking of metabolic pathways with epigenetics - Provides translational researchers with the knowledge of both basic research and clinic applications of DNA methylation in human diseases
Download or read book Hepatitis B Virus and Liver Disease written by Jia-Horng Kao and published by Springer. This book was released on 2018-01-12 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive, state-of-the art review of HBV infection and liver disease. It discusses new data on basic and translational medicine, including the viral life cycle, the immunopathogenesis of virus-induced chronic hepatitis, viral and host genetic factors affecting disease progression, and the mechanism of virus-induced hepatocarcinogenesis, as well as their potential applications in daily clinical practice. The clinical aspects of chronic HBV infection are examined in chapters on the global epidemiology, efficacy of HBV vaccination, natural history, co-infections with HCV, HDV or HIV, and management of special populations including children, pregnant women and patients undergoing immunosuppressive therapy. Further, it describes the advances and perspectives in the development of novel antiviral treatments as possible cures for HBV infection. The book is a valuable resource for medical students, physicians, and researchers who are interested in managem ent of patients with chronic HBV infection and investigation of HBV infection.
