Linked Life Data

16951344

Source:http://linkedlifedata.com/resource/pubmed/id/16951344

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2006-9-4
pubmed:abstractText
Intracellular differentiation events that determine which cells develop into memory CD8 T cells are currently incompletely understood. Methyl-CpG-binding domain protein 2 (MBD2) is a transcriptional repressor that binds to methylated DNA and mediates the biological consequences of epigenetic gene methylation. The role of MBD2 during the differentiation of naive CD8 T cells into effector and memory cells was determined following acute infection of MBD2-deficient mice with lymphocytic choriomeningitis virus. Despite rapid viral clearance and an efficient primary effector CD8 T cell response, reduced numbers of Ag-specific memory CD8 T cells were observed. Importantly, the appearance of precursor memory cells (IL-7Ralphahigh) was delayed. The remaining MBD2(-/-) memory cells were not fully protective during rechallenge, and memory cell characteristics were altered with regard to surface markers (IL-7Ralpha, KLRG-1, CD27, and others) and cytokine production. The defect was CD8 T cell intrinsic, because memory cell development was also delayed when MBD2(-/-) CD8 T cells were adoptively transferred into SCID mice. These data demonstrate that MBD2 is a previously unrecognized intracellular factor required for the efficient generation of protective memory CD8 T cells.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
177
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3821-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Impaired memory CD8 T cell development in the absence of methyl-CpG-binding domain protein 2.
pubmed:affiliation
Emory Vaccine Center and Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322, USA. ekersh@emory.edu
pubmed:publicationType
Journal Article, Research Support, N.I.H., Extramural