Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-3-23
pubmed:abstractText
Aging and HIV disease show certain immunological similarities. In both situations, control over viral infection is diminished, and there is an increase in certain types of cancer. The immune cell type responsible for controlling viral infections and cancer is the so-called CD8 or cytotoxic T cell. In elderly persons and individuals chronically infected with HIV, there are high proportions of CD8 T cells that resemble cells that reach the end stage of replicative senescence in cell culture after repeated rounds of antigen-driven proliferation. Senescent cultures are characterized by irreversible cell cycle arrest, shortened telomeres, inability to upregulate telomerase, loss of CD28 expression, and apoptosis resistance. Strategies that retard replicative senescence may, therefore, provide novel approaches to enhancing immune function during aging and HIV disease.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0047-6374
pubmed:author
pubmed:issnType
Print
pubmed:volume
125
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
103-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Impact of the Hayflick Limit on T cell responses to infection: lessons from aging and HIV disease.
pubmed:affiliation
Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Avenue, Los Angeles, CA 90095-1732, USA. reffros@mednet.ucla.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Review, Research Support, Non-U.S. Gov't