The Papovaviridae

It has been more than twenty years since the isolation of polyoma virus and SV40, and the reports that they could produce tumors in animals and transformation of cells in culture. What was startling was that these biologic properties are associated with viruses that contain genetic in formation that is able to code for only five or six proteins. Since that time, investigations with these viruses have been in four principal areas. One major area of study has been on cells transformed by viruses that show altered growth properties and specify new viral and cellular proteins. Transformation studies have focused on the tumor (T) antigens that are specified by the virus and are required to initiate and to maintain the transformed state. Current studies on transformation are summarized in Chapter 4. The second broad area of investigation concerns replication of viruses during a lytic cycle of infection. T-antigens that are the hallmark of transformed cells are also expressed in cells that are lytically infected and are required for viral DNA replication and also function to alter rates of transcription of the early and late viral genes. Except for T-antigen, virus replication depends on the cellular enzymatic machinery and so the description of viral macromolecular synthesis has provided valuable insights into the cellular biosynthetic pathways. These studies are described in Chapters 1-3. The studies that have medical relevance concern JC and BK viruses and there is evidence of widespread exposure of human populations to these agents.

It has been more than twenty years since the isolation of polyoma virus and SV40, and the reports that they could produce tumors in animals and transformation of cells in culture. What was startling was that these biologic properties are associated with viruses that contain genetic in formation that is able to code for only five or six proteins. Since that time, investigations with these viruses have been in four principal areas. One major area of study has been on cells transformed by viruses that show altered growth properties and specify new viral and cellular proteins. Transformation studies have focused on the tumor (T) antigens that are specified by the virus and are required to initiate and to maintain the transformed state. Current studies on transformation are summarized in Chapter 4. The second broad area of investigation concerns replication of viruses during a lytic cycle of infection. T-antigens that are the hallmark of transformed cells are also expressed in cells that are lytically infected and are required for viral DNA replication and also function to alter rates of transcription of the early and late viral genes. Except for T-antigen, virus replication depends on the cellular enzymatic machinery and so the description of viral macromolecular synthesis has provided valuable insights into the cellular biosynthetic pathways. These studies are described in Chapters 1-3. The studies that have medical relevance concern JC and BK viruses and there is evidence of widespread exposure of human populations to these agents.

In recent years, papillomaviruses in general and human papillo maviruses in particular have been recognized as possible agents of important diseases, including some forms of human cancer. The purpose of this book is to present a concise panorama of the pre sent status of knowledge of this topic. This knowledge is as impor tant to molecular biologists and virologists as it is to clinicians and pathologists. To bridge the gap among these diverse groups of investigators, we conceived of a book covering a broad spectrum of the basic scientific, clinical, and pathological aspects of diseases associated with papillomaviruses. Although the principal thrust of this book is directed at human papillomaviruses, fundamental knowledge of animal viruses is essential to the current understand ing of the molecular mechanisms of cell transformation. For this reason, a chapter on animal viruses has also been included. Some of the experimental work having to do with the elucidation of transformation and other aspects of interaction between the virus and the cell cannot be based on human papillomaviruses because of a lack of suitable experimental models. Hence, some of the chapters dealing with fundamental aspects of viral molecular biol ogy are based on animal models. We were very fortunate in having persuaded a number of distin guished colleagues to contribute to this work.

Pathology and Pathogenesis of Human Viral Disease is a comprehensive reference that examines virus-induced clinical disease of humans in the context of the responsible virus and its epidemiology. Encompassing everything from cold and flu viruses to sexually transmitted diseases, this important resource describes the cellular and tissue pathological changes attributable to infection in the context of the pathogenic mechanisms involved. The author provides a comprehensive review of the older and contemporary literature, considering both the common and much rarer complications of infection. Pathology and Pathogenesis of Human Viral Disease is written from the unique perspective of the clinical pathologist. It will help clinicians and pathologists gain a better understanding of changes that occur in viral infected cells, tissues, and organs. It will also serve as a pathology source book for virologists, internists, and pediatricians. Provides a comprehensive, worldwide perspective of viral disease pathology Bridges the fields of pathology and virology; integrating clinical disease with cell and tissue pathology Addresses topics from the perspective of the clinical pathologist Illustrates unique, viral induced pathological lesions Considers common and uncommon complications of infection

A multidisciplinary volume presenting recent research relating to papillomaviruses and their association with certain types of malignant lesions. Presents up-to-date findings on their classification and their molecular biology and cell-virus interactions, including mode of entry, modification of genetic material and pathogenecity; their relationship to various kinds of skin conditions; their association with cervical carcinoma and carcinomas of the bladder and alimenatry tract, with descriptions of in vitro studies; and finally, their immunology and possible therapeutic agents, e.g., interferon and vaccination. The only comprehensive text on the subject, it brings together the work of many of the most prominent researchers in the field.

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.

Now in full color, Lippincott's Illustrated Reviews: Microbiology, Second Edition enables rapid review and assimilation of large amounts of complex information about medical microbiology. The book has the hallmark features for which Lippincott's Illustrated Reviews volumes are so popular: an outline format, 450 full-color illustrations, end-of-chapter summaries, review questions, plus an entire section of clinical case studies with full-color illustrations. This edition's medical/clinical focus has been sharpened to provide a high-yield review. Five additional case studies have been included, bringing the total to nineteen. Review questions have been reformatted to comply with USMLE Step 1 style, with clinical vignettes.