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1996-01-30
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Document 0083
DOCN M9610083
TI Immunosuppression by a noncytolytic virus via T cell mediated
immunopathology. Implication for AIDS.
DT 9601
AU Zinkernagel RM; University of Zurich, Institute of Experimental
Immunology,; Switzerland.
SO Adv Exp Med Biol. 1995;374:165-71. Unique Identifier : AIDSLINE
MED/96047246
AB HIV is basically a non- or poorly cytocidal virus. Therefore, HIV
infections in humans represent an apparent perversity in the balance
between the host immune system and infectious agent: This noncytopathic
virus infects macrophages, antigen presenting cells, helper T cells and
other host cells which are then destroyed by the CD8+ T cell immune
response. Thus, HIV infects some of the key cells involved in immune
reactions and therefore induces the immune system to destroy itself and
thereby enables the virus to persist. Accordingly, immunosuppression is
not a cause of HIV cytopathogenicity but a consequence of conventional T
cell mediated immunopathology that destroys macrophages antigen
presenting cells, T helper cells and facilitates infection by trivial
intracellular parasites which eventually cause fatal disease. This
immunopathological view of AIDS is testable and, if correct, impinges on
rationales for AIDS prevention and treatment.
DE Acquired Immunodeficiency Syndrome/*IMMUNOLOGY CD4 Lymphocyte Count
CD4-Positive T-Lymphocytes/PATHOLOGY Human HIV/*PHYSIOLOGY *Immune
Tolerance Support, Non-U.S. Gov't T-Lymphocytes/*IMMUNOLOGY
Titrimetry JOURNAL ARTICLE REVIEW REVIEW, TUTORIAL
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).