Download or read book Comparative Roles of Herpes Simplex Virus Type 1 HSV 1 Glycoproteins in Cytoplasmic Virion Egress written by Hyun Cheol Lee and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Herpes Simplex Virus Type 1 HSV 1 UL31 UL33 and UL34 Proteins Play Essential Roles in Herpesvirion Morphogenesis written by Ashley Elizabeth Reynolds and published by . This book was released on 2002 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Glycoprotein M and ESCRT in Herpes Simplex Virus Type 1 Assembly written by Yudan Ren and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Herpes simplex virus type 1 (HSV-1) has a large linear double-stranded DNA genome in an icosahedral capsid shell, a cell-derived lipid envelope and a proteinaceous tegument layer. There are over fifty viral proteins and many host proteins identified in HSV-1 virions. The final formation of mature virus particles requires the membrane wrapping of tegumented capsids in the cytoplasm, a process termed secondary envelopment. This process involves the coordination of numerous viral and cellular proteins and results in double-membrane structures with enveloped virions contained within cellular vesicles. Mature viruses are then released through the fusion of these virion-containing vesicles and plasma membranes. This thesis describes investigation into the functions of viral glycoprotein M (gM) and the cellular Endosomal Sorting Complexes Required for Transport (ESCRT) in secondary envelopment. Firstly, it has been reported that gH/L can be efficiently internalised and targeted to the TGN by the co-expression of gM in transfection assays. In order to examine the role of gM in guiding the localisation of viral proteins in infected cells, a HSV-1 gM deletion virus (∆gM), and its revertant virus were constructed. The major phenotype demonstrated was that the absence of gM caused the internalisation of cell surface gH/L to be inhibited and higher levels of gH/L to be observed on the cell surface. Further, lower levels of gH/L were detected in purified ∆gM virions, which was in agreement with the delayed entry kinetics, smaller plaque sizes and greater replication deficits at low multiplicity of infection observed in ∆gM infected cells. Over all the results presented in this thesis demonstrate that in infected cells the efficient incorporation of gH/L into virions relies on the function of gM in HSV-1. Secondly, during HSV-1 secondary envelopment the budding and scission of the viral envelope from the host membrane share topological similarities with the formation of intraluminal vesicle in multivesicular bodies, retrovirus budding, and abscission at the end of cytokinesis, processes that require the cellular ESCRT machinery. There are four multiprotein ESCRT complexes and many associated proteins involved in their regulation. It has been previously shown that the ESCRT-III complex and a functional ATPase VPS4 are required for HSV-1 secondary envelopment, but different from the strategy utilised by HIV-1, the recruitment of ESCRT during HSV-1 infection is independent of TSG101 and/or ALIX. Data presented in this thesis demonstrate that CHMP4A/B/C proteins of the ESCRT-III complex are specifically crucial for HSV-1 secondary envelopment. Simultaneous depletion of CHMP4A/B/C proteins significantly inhibited HSV-1 replication. Ultrastructure analysis revealed that there were virtually no extracellular virions in CHMP4A/B/C depleted samples while more free capsids were observed in the cytoplasm, although the nuclear capsids and primary envelopment events appeared to be normal. In order to identify interactions between HSV-1 and ESCRT proteins, 22 HSV-1 tegument proteins were cloned and tested against a panel of ESCRT and ESCRT-associated proteins in yeast two-hydrid assays. Analysis of positive hits from yeast two-hybrid interaction screens using GST pull-down, co-immunoprecipitation and protein co-localisation assays have validated interactions of pUL47 with CC2D1A/1B, CIN85, CHMP6 and ALIX, pUL46 and pUL49 with CC2D1A/1B and CIN85, and pUL16 with CC2D1A/1B. Furthermore, the newly identified ESCRT associated proteins CC2D1A and CC2D1B have been detected in purified virions. The role of the identified ESCRT proteins in HSV-1 replication has been investigated using siRNA depletion. Unfortunately siRNA depletions of the various ESCRT candidates individually or in combinations did not show any significant effect on HSV-1 replication. Overall these data suggest that unlike HIV and other retroviruses, HSV-1 has evolved multiple parallel pathways to hijack the ESCRT machinery to facilitate its replication, particularly, through the interactions that lead directly to the recruitment of CHMP4A/B/C proteins. Disruption of some of these pathways did not prevent HSV-1 replication in tissue culture, suggesting any one potential pathway is sufficient for ESCRT recruitment to sites of HSV-1 assembly.
Download or read book A Structural and Functional Analysis of Herpes Simplex Virus Type 1 Glycoprotein L an Essential Component of the Viral Fusogenic Complex written by Michael J. Novotny and published by . This book was released on 1996 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Herpes Simplex Virus Type 1 written by Kari Lynn Roberts and published by . This book was released on 2011 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herpes simplex virus type 1 (HSV-1) replicates in the nucleus and buds through the nuclear membrane to access the cytosol and complete the maturation process. The HSV-1 protein pUL31, along with its binding partner, pUL34, has been previously shown to be required for nucleocapsids to successfully bud through the nuclear membrane. pUL31 is also required for efficient viral DNA synthesis and packaging. After the HSV-1 exits the nucleus, the capsid acquires several accessory proteins (tegument) and finally a mature envelope by budding into vesicles of the trans-Golgi network (TGN). These virion-laden vesicles traffic toward the cell periphery and through cortical actin until ultimately the virion is secreted upon fusion of the TGN vesicle with the plasma membrane. The data presented here reveals new roles for pUL31, as cells infected with a UL31-null virus were delayed for viral gene expression as well as activation of NF[kappa]B and c-Jun N-terminal kinase (JNK) in multiple cell lines. At least one representative from each kinetic class of viral genes was examined at various times post infection. The protein expression defects were not caused by a failure to enter cells, was not rescued by ICP27 expressed in trans and correlated with NF[kappa]B activation. The data shows that these defects were not observed in the absence of the pUL31 binding partner, pUL34, and that while most pUL31 is expressed at late times post infection, low levels are detectable as early as 2 hours post infection. Data presented in this work also demonstrates a role for the actin motor myosin Va in the secretion of HSV-1 virions. Expression of two isoforms of dominant negative myosin Va (DN-myoVa) decreased virion secretion by 5075% as well as significantly decreased surface expression of viral glycoproteins B, M and D. DN-myoVa colocalized with TGN markers and the conformation of native myosin Va in infected cells was altered by 4 hours post infection. These data suggest that myosin Va is involved in the egress of virion-laden TGN vesicles as they transit through cortical actin toward the plasma membrane.
Download or read book Scanning Electron Microscopy for the Life Sciences written by Heide Schatten and published by Cambridge University Press. This book was released on 2013 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to modern scanning electron microscopy instrumentation, methodology and techniques, highlighting novel applications to cell and molecular biology.
Download or read book Cell Biology of Herpes Viruses written by Klaus Osterrieder and published by Springer. This book was released on 2017-05-20 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herpes viruses are widely distributed in nature, causing disease in organisms as diverse as bivalves and primates, including humans. Each virus appears to have established a long-standing relationship with its host, and the viruses have the ability to manipulate and control the metabolism of host cells, as well as innate and adaptive antiviral immune responses. Herpes viruses maintain themselves within hosts in a latent state resulting in virus persistence for years – usually for the life span of the hosts. Herpes viruses comprise a large number of pathogens with diverse cellular targets and biological consequences of infection. What they have in common is their structure and the fact that they establish a dormant (latent) infection in their hosts that usually persists for life. The reviews here will highlight the general principles of herpes virus infection, with equal attention to overall principle and important difference. Also, the cell type- and life-style dependent differences in the establishment and maintenance of virus persistence will be covered.
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 Viral Fusion Mechanisms written by Joseph Bentz and published by CRC Press. This book was released on 1992-11-30 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Viral Fusion Mechanisms presents the first comprehensive review on this exciting topic. The book focuses on molecular mechanisms rather than phenomonology and examines a wide range of viruses, including influenza, HIV, Sendai, SFV, Vaccinia, VSV, and RSV. Recent theoretical work on dissecting protein-mediated membrane fusion is discussed, and the most promising new technologies for elucidating mechanisms are highlighted. Viral Fusion Mechanisms is an essential reference for biophysicists, cell biologists, colloid chemists, immunologists, microbiologists, molecular biologists, and virologists.
Download or read book Viral Molecular Machines written by Michael G. Rossmann and published by Springer Science & Business Media. This book was released on 2012-02-02 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will contain a series of solicited chapters that concern with the molecular machines required by viruses to perform various essential functions of virus life cycle. The first three chapters (Introduction, Molecular Machines and Virus Architecture) introduce the reader to the best known molecular machines and to the structure of viruses. The remainder of the book will examine in detail various stages of the viral life cycle. Beginning with the viral entry into a host cell, the book takes the reader through replication of the genome, synthesis and assembly of viral structural components, genome packaging and maturation into an infectious virion. Each chapter will describe the components of the respective machine in molecular or atomic detail, genetic and biochemical analyses, and mechanism. Topics are carefully selected so that the reader is exposed to systems where there is a substantial infusion of new knowledge in recent years, which greatly elevated the fundamental mechanistic understanding of the respective molecular machine. The authors will be encouraged to simplify the detailed knowledge to basic concepts, include provocative new ideas, as well as design colorful graphics, thus making the cutting-edge information accessible to broad audience.
Download or read book A Guide to Human Gene Therapy written by Roland W. Herzog and published by World Scientific. This book was released on 2010 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. Non-viral gene therapy / Sean M. Sullivan -- 2. Adenoviral vectors / Stuart A. Nicklin and Andrew H. Baker -- 3. Retroviral vectors and integration analysis / Cynthia C. Bartholomae [und weitere] -- 4. Lentiviral vectors / Janka Matrai, Marinee K.L. Chuah and Thierry VandenDriessche -- 5. Herpes simplex virus vectors / William F. Goins [und weitere] -- 6. Adeno-Associated Viral (AAV) vectors / Nicholas Muzyczka -- 7. Regulatory RNA in gene therapy / Alfred. S. Lewin -- 8. DNA integrating vectors (Transposon, Integrase) / Lauren E. Woodard and Michele P. Calos -- 9. Homologous recombination and targeted gene modification for gene therapy / Matthew Porteus -- 10. Gene switches for pre-clinical studies in gene therapy / Caroline Le Guiner [und weitere] -- 11. Gene therapy for central nervous system disorders / Deborah Young and Patricia A. Lawlor -- 12. Gene therapy of hemoglobinopathies / Angela E. Rivers and Arun Srivastava -- 13. Gene therapy for primary immunodeficiencies / Aisha Sauer, Barbara Cassani and Alessandro Aiuti -- 14. Gene therapy for hemophilia / David Markusic, Babak Moghimi and Roland Herzog -- 15. Gene therapy for obesity and diabetes / Sergei Zolotukhin and Clive H. Wasserfall -- 16. Gene therapy for Duchenne muscular dystrophy / Takashi Okada and Shin'ichi Takeda -- 17. Cancer gene therapy / Kirsten A.K. Weigel-Van Aken -- 18. Gene therapy for autoimmune disorders / Daniel F. Gaddy, Melanie A. Ruffner and Paul D. Robbins -- 19. Gene therapy for inherited metabolic storage diseases / Cathryn Mah -- 20. Retinal diseases / Shannon E. Boye, Sanford L. Boye and William W. Hauswirth -- 21. A brief guide to gene therapy treatments for pulmonary diseases / Ashley T. Martino, Christian Mueller and Terence R. Flotte -- 22. Cardiovascular disease / Darin J. Falk, Cathryn S. Mah and Barry J. Byrne
Download or read book DNA Tumor Viruses written by Blossom Damania and published by Springer Science & Business Media. This book was released on 2008-12-19 with total page 805 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book focuses on the DNA viruses in the human population that are associated with cancers. It covers most of the viruses that are thought to contribute to human malignancy. This book represents a comprehensive review of the field of DNA tumor virology. Right now, while there are books out there that cover individual viruses that are also covered in this book, there is no single book that covers this topic comprehensively. This book is the first current, comprehensive review of its kind in the market.
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 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 Desk Encyclopedia of Microbiology written by Moselio Schaechter and published by Academic Press. This book was released on 2010-04-19 with total page 1277 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Desk Encyclopedia of Microbiology, Second Edition is a single-volume comprehensive guide to microbiology for the advanced reader. Derived from the six volume e-only Encyclopedia of Microbiology, Third Edition, it bridges the gap between introductory texts and specialized reviews. Covering topics ranging from the basic science of microbiology to the current "hot" topics in the field, it will be invaluable for obtaining background information on a broad range of microbiological topics, preparing lectures and preparing grant applications and reports. - The most comprehensive single-volume source providing an overview of microbiology to non-specialists - Bridges the gap between introductory texts and specialized reviews - Provides concise and general overviews of important topics within the field making it a helpful resource when preparing for lectures, writing reports, or drafting grant applications
Download or read book Alphaherpesviruses written by Ekaterina E Heldwein and published by . This book was released on 2020-07-24 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
