Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- Part I Introduction: definition and classification of the human herpesviruses
- Part II Basic virology and viral gene effects on host cell functions: alphaherpesviruses
- Part II Basic virology and viral gene effects on host cell functions: betaherpesviruses
- Part II Basic virology and viral gene effects on host cell functions: gammaherpesviruses
- 22 Introduction to the human γ-herpesviruses
- 23 Gammaherpesviruses entry and early events during infection
- 24 Gammaherpesvirus maintenance and replication during latency
- 25 Reactivation and lytic replication of EBV
- 26 Reactivation and lytic replication of KSHV
- 27 EBV gene expression and regulation
- 28 KSHV gene expression and regulation
- 29 Effects on apoptosis, cell cycle and transformation, and comparative aspects of EBV with other DNA tumor viruses
- 30 KSHV manipulation of the cell cycle and programmed cell death pathways
- 31 Human gammaherpesvirus immune evasion strategies
- Part III Pathogenesis, clinical disease, host response, and epidemiology: HSV-1 and HSV-2
- Part III Pathogenesis, clinical disease, host response, and epidemiology: VZU
- Part III Pathogenesis, clinical disease, host response, and epidemiology: HCMV
- Part III Pathogenesis, clinical disease, host response, and epidemiology: HHV- 6A, 6B, and 7
- Part III Pathogenesis, clinical disease, host response, and epidemiology: gammaherpesviruses
- Part IV Non-human primate herpesviruses
- Part V Subversion of adaptive immunity
- Part VI Antiviral therapy
- Part VII Vaccines and immunothgerapy
- Part VIII Herpes as therapeutic agents
- Index
- Plate section
- References
31 - Human gammaherpesvirus immune evasion strategies
from Part II - Basic virology and viral gene effects on host cell functions: gammaherpesviruses
Published online by Cambridge University Press: 24 December 2009
- Frontmatter
- Contents
- List of contributors
- Preface
- Part I Introduction: definition and classification of the human herpesviruses
- Part II Basic virology and viral gene effects on host cell functions: alphaherpesviruses
- Part II Basic virology and viral gene effects on host cell functions: betaherpesviruses
- Part II Basic virology and viral gene effects on host cell functions: gammaherpesviruses
- 22 Introduction to the human γ-herpesviruses
- 23 Gammaherpesviruses entry and early events during infection
- 24 Gammaherpesvirus maintenance and replication during latency
- 25 Reactivation and lytic replication of EBV
- 26 Reactivation and lytic replication of KSHV
- 27 EBV gene expression and regulation
- 28 KSHV gene expression and regulation
- 29 Effects on apoptosis, cell cycle and transformation, and comparative aspects of EBV with other DNA tumor viruses
- 30 KSHV manipulation of the cell cycle and programmed cell death pathways
- 31 Human gammaherpesvirus immune evasion strategies
- Part III Pathogenesis, clinical disease, host response, and epidemiology: HSV-1 and HSV-2
- Part III Pathogenesis, clinical disease, host response, and epidemiology: VZU
- Part III Pathogenesis, clinical disease, host response, and epidemiology: HCMV
- Part III Pathogenesis, clinical disease, host response, and epidemiology: HHV- 6A, 6B, and 7
- Part III Pathogenesis, clinical disease, host response, and epidemiology: gammaherpesviruses
- Part IV Non-human primate herpesviruses
- Part V Subversion of adaptive immunity
- Part VI Antiviral therapy
- Part VII Vaccines and immunothgerapy
- Part VIII Herpes as therapeutic agents
- Index
- Plate section
- References
Summary
Introduction
The human γ-HVs are able to establish a lifelong, persistent infection that is largely clinically inapparent within the immunocompetent host. However, when these viruses are not kept in check, a variety of lymphoproliferative and neoplastic disorders result that will be detailed elsewhere within this volume. In brief, for HHV-8, also known as Kaposi's sarcoma-associated herpesvirus (KSHV), these neoplasias include Kaposi's sarcoma (KS), multicentric Castleman's disease (MCD) and primary effusion lymphoma (PEL). HHV-4, or Epstein–Barr virus (EBV), has been etiologically associated with infectious mononucleosis, Burkitt's lymphoma, nasopharyngeal carcinoma (NPC), Hodgkin's disease, hemophagocytic lymphohistiocytosis syndrome and some gastric cancers. Through coevolution with their hosts, these viruses have acquired a number of genes that act to set a fine balance between the uncontrolled, virally driven cellular proliferation seen in the immunocompromised host and complete elimination of infected cells by the immune responses. Several of these gene products cause selective suppression of normal immune system functioning and allow for an apathogenic, persistent infection.
Immune system overview
The immune system provides multiple mechanisms of protection from invading pathogens, whether viral, bacterial or parasitic. These immune responses include both broad spectrum, innate responses and highly specific, adaptive responses. Mechanisms of the innate response include the production of viral replication blocking interferons, opsonization and lysis by the complement cascade and natural antibodies, apoptosis, as well as clearance of infection by natural killer (NK) cells, macrophages, neutrophils and T-cells.
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- Information
- Human HerpesvirusesBiology, Therapy, and Immunoprophylaxis, pp. 559 - 586Publisher: Cambridge University PressPrint publication year: 2007
References
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