Abstract:
:Genetic variants of human and simian immunodeficiency virus (HIV and SIV) that evolve during the course of infection and progression to AIDS are phenotypically and antigenically distinct from their progenitor viruses present at early stages of infection. However, it has been unclear how these late variants, which are typically T-cell tropic, cytopathic and resistant to neutralizing antibodies, influence the development of clinical AIDS. To address this, we infected macaques with cloned SIVs representing prototype variants from early-, intermediate- and late-stage infection having biological characteristics typical of viruses found at similar stages of HIV infection in humans. These studies demonstrate that sequential, phenotypic and antigenic variants represent viruses that have become increasingly fit for replication in the host, and our data support the hypothesis that emerging variants have increased pathogenicity and drive disease progression in SIV and HIV infection.
journal_name
Nat Medjournal_title
Nature medicineauthors
Kimata JT,Kuller L,Anderson DB,Dailey P,Overbaugh Jdoi
10.1038/8414keywords:
subject
Has Abstractpub_date
1999-05-01 00:00:00pages
535-41issue
5eissn
1078-8956issn
1546-170Xjournal_volume
5pub_type
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