Linked Life Data

9400591

Source:http://linkedlifedata.com/resource/pubmed/id/9400591

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1998-1-12
pubmed:abstractText
Enhanced rates of programmed cell death (apoptosis) have been detected in T cells and B cells from human immunodeficiency virus type 1 (HIV-1)-infected individuals. To evaluate the possible relevance of this event to HIV pathogenesis and disease progression, apoptosis in CD4+ T lymphocytes and CD19+ B lymphocytes, viral load, and neutralizing antibody titers were assayed in HIV-1-infected slow progressors and progressors. A correlation was found between progressive disease and apoptosis of CD4+ T cells. The extent of apoptosis in CD4+ cells was similar in slow progressors and seronegative control subjects. By contrast, we found elevated levels of B-cell apoptosis in all HIV-1-infected individuals compared with seronegative control subjects, with a tendency toward increased levels of apoptosis with progressive disease. Apoptosis in CD4+ T cells and CD19+ B cells correlated with viral RNA levels in plasma. Furthermore, higher rates of B-cell apoptosis were observed in individuals with poor neutralizing activity against a panel of six clinical HIV-1 isolates. From these results we conclude that the extent of apoptosis in cultured CD4+ cells and CD19+ cells appears to parallel the decline in CD4 cell counts in infected individuals. The finding of a relation between apoptosis in B cells and poor neutralizing capacity suggests that apoptosis may be related to loss of immune function. A role for apoptosis in the pathogenesis of AIDS is also supported by the strong correlation between viral load and rates of apoptosis in CD4+ T cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0042-6822
pubmed:author
pubmed:issnType
Print
pubmed:day
24
pubmed:volume
238
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
180-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Apoptosis of CD4+ and CD19+ cells during human immunodeficiency virus type 1 infection--correlation with clinical progression, viral load, and loss of humoral immunity.
pubmed:affiliation
Microbiology and Tumorbiology Center, Karolinska Institute, Stockholm, Sweden.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't