Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2006-12-12
pubmed:abstractText
Immunological changes associated with aging play a major role in both the blunted responses to infections as well as to vaccines intended to prevent many of these infections. Several independent studies on immune correlates of poor vaccine responsiveness have identified a novel immune biomarker of reduced antibody response to vaccination, namely high proportions of memory CD8 T lymphocytes lacking expression of the CD28 costimulatory molecule. Research on this population of CD8(+)CD28(-) T lymphocytes has documented characteristics suggestive of replicative senescence, including inability to proliferate, reduced telomere length, and altered cytokine profiles. CD8(+)CD28(-) T lymphocytes have also been associated with suppressor functions and with early mortality in the elderly. This article discusses some of the challenges involved in custom-designing vaccines for the elderly, and suggests several immunomodulatory strategies that may enhance vaccine responsiveness in this age group.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0264-410X
pubmed:author
pubmed:issnType
Print
pubmed:day
8
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
599-604
pubmed:dateRevised
2007-12-3
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Role of T lymphocyte replicative senescence in vaccine efficacy.
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, Review, Research Support, N.I.H., Extramural