Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2005-9-8
pubmed:abstractText
The molecular signals that allow primed CD8 T cells to persist and be effective are particularly important during cancer growth. With response to tumor-expressed Ag following adoptive T cell transfer, we show that CD8 effector cells deficient in OX40, a TNFR family member, could not mediate short-term tumor suppression. OX40 was required at two critical stages. The first was during CD8 priming in vitro, in which APC-transmitted OX40 signals endowed the ability to survive when adoptively transferred in vivo before tumor Ag encounter. The second was during the in vivo recall response of primed CD8 T cells, the stage in which OX40 contributed to the further survival and accumulation of T cells at the tumor site. The lack of OX40 costimulation was associated with reduced levels of Bcl-x(L), and retroviral expression of Bcl-x(L) in tumor-reactive CD8 T cells conferred greatly enhanced tumor protection following adoptive transfer. These data demonstrate that OX40 and Bcl-x(L) can control survival of primed CD8 T cells and provide new insights into both regulation of CD8 immunity and control of tumors.
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
175
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3534-41
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:16148096-Animals, pubmed-meshheading:16148096-Antigens, Neoplasm, pubmed-meshheading:16148096-CD8-Positive T-Lymphocytes, pubmed-meshheading:16148096-Cell Adhesion Molecules, pubmed-meshheading:16148096-Cell Survival, pubmed-meshheading:16148096-Cells, Cultured, pubmed-meshheading:16148096-Gene Expression Regulation, pubmed-meshheading:16148096-Immunologic Memory, pubmed-meshheading:16148096-Immunotherapy, Adoptive, pubmed-meshheading:16148096-Mice, pubmed-meshheading:16148096-Mice, Inbred C57BL, pubmed-meshheading:16148096-Mice, Transgenic, pubmed-meshheading:16148096-Neoplasm Proteins, pubmed-meshheading:16148096-Neoplasms, Experimental, pubmed-meshheading:16148096-Receptors, OX40, pubmed-meshheading:16148096-Receptors, Tumor Necrosis Factor, pubmed-meshheading:16148096-bcl-X Protein
pubmed:year
2005
pubmed:articleTitle
OX40 and Bcl-xL promote the persistence of CD8 T cells to recall tumor-associated antigen.
pubmed:affiliation
Division of Molecular Immunology, La Jolla Institute for Allergy and Immunology, San Diego, CA 92121, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural