Abstract:
The immune system is constantly challenged by ubiquitous viruses. Multiple immune defenses have evolved to meet these challenges, and thus immunocompetent individuals successfully respond to infection without sequela. X-linked lymphoproliferative syndrome patients, renal allograft recipients, and acquired immunodeficiency syndrome patients share impaired immune surveillance as a common feature. Such individuals are variously susceptible to numerous untoward complications following infection with Epstein-Barr virus, cytomegalovirus, herpes simplex virus, human papillomavirus, and hepatitis B virus. We hypothesize that failure of the immune system to control these viruses is instrumental in the occurrence of some B-cell lymphomas. Kaposi's sarcoma, and squamous-cell and hepatocellular carcinomas. Herein we review some mechanisms responsible for the breakdown of immune surveillance and the permissive role immunodeficiency plays in viral oncogenesis.
Keywords: Acquired Immunodeficiency Syndrome/ETIOLOGY/IMMUNOLOGY/ MICROBIOLOGY Adolescence Adult Aged Cell Transformation, Neoplastic/*IMMUNOLOGY *Cell Transformation, Viral Cytomegalovirus Infections/IMMUNOLOGY Female Herpesvirus 4, Human/IMMUNOLOGY Human *Immunity, Cellular *Immunologic Surveillance Kidney/TRANSPLANTATION Kidney Transplantation Lymphoproliferative Disorders/IMMUNOLOGY Male Middle Age Neoplasms/IMMUNOLOGY Sex Chromosome Abnormalities Support, Non-U.S. Gov't Support, U.S. Gov't, P.H.S. X Chromosome JOURNAL ARTICLE
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