Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1999-3-30
pubmed:abstractText
It has been hypothesized that protection against human immunodeficiency virus (HIV)-1 infection may result from either acquired host immunity, inheritance of a dysfunctional CCR5 HIV-1 coreceptor, or a low or attenuated virus inoculum. Thirty-seven HIV-1-uninfected persons engaging in repeated high-risk sexual activity with an HIV-1-infected partner were prospectively studied to determine the contribution of these factors in protecting against HIV-1 transmission. More than one-third (13/36) demonstrated HIV-1-specific cytotoxicity, and this activity significantly correlated with the wild type CCR5 genotype (P=.03). Only 1 subject (3%) demonstrated the homozygous CCR5 32-bp deletion (Delta32/Delta32). Median plasma HIV-1 RNA levels from 18 HIV-1-infected sex partners were not statistically different from those of matched infected control patients. These results indicate that inheritance of the Delta32 CCR5 mutation does not account for the majority of persistently HIV-1-resistant cases, and the presence of cellular immunity in these persons suggests either undetected infection or protective immunity.
pubmed:grant
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-1899
pubmed:author
pubmed:issnType
Print
pubmed:volume
179
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
548-57
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:9952360-Acquired Immunodeficiency Syndrome, pubmed-meshheading:9952360-Adult, pubmed-meshheading:9952360-Female, pubmed-meshheading:9952360-HIV Antigens, pubmed-meshheading:9952360-HIV Seronegativity, pubmed-meshheading:9952360-HIV-1, pubmed-meshheading:9952360-Heterosexuality, pubmed-meshheading:9952360-Homosexuality, Male, pubmed-meshheading:9952360-Humans, pubmed-meshheading:9952360-Immunity, Cellular, pubmed-meshheading:9952360-Immunity, Innate, pubmed-meshheading:9952360-Lymphocyte Activation, pubmed-meshheading:9952360-Male, pubmed-meshheading:9952360-Middle Aged, pubmed-meshheading:9952360-RNA, Viral, pubmed-meshheading:9952360-Receptors, CCR5, pubmed-meshheading:9952360-Risk-Taking, pubmed-meshheading:9952360-Sequence Deletion, pubmed-meshheading:9952360-T-Lymphocytes, pubmed-meshheading:9952360-T-Lymphocytes, Cytotoxic
pubmed:year
1999
pubmed:articleTitle
Protection against human immunodeficiency virus type 1 infection in persons with repeated exposure: evidence for T cell immunity in the absence of inherited CCR5 coreceptor defects.
pubmed:affiliation
Division of Molecular Medicine, Fred Hutchinson Cancer Research Center, Seattle, WA 98109-1024, USA. wgoh@fhcrc.org
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't