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- W2113051617 abstract "Abstract CD27 interactions with its ligand, CD70, are thought to be necessary for optimal primary and memory adaptive immune responses to a variety of pathogens. Thus far, all studies addressing the function of the CD27–CD70 axis have been performed in mice lacking CD27, in those overexpressing CD70, or in those in which these molecules were blocked or mimicked by Abs or recombinant soluble CD70. Because these methods have in some cases led to divergent results, we generated CD70-deficient mice to directly assess its role in vivo. We find that lack of CD70-mediated stimulation during primary responses to lymphocytic choriomeningitis virus lowered the magnitude of CD8 Ag-specific T cell response, resulting in impaired viral clearance, without affecting CD4 T cell responses. Unexpectedly, CD70–CD27 costimulation was not needed for memory CD8 T cell generation or the ability to mount a recall response to lymphocytic choriomeningitis virus. Adoptive transfers of wild-type memory T cells into CD70−/− or wild-type hosts also showed no need for CD70-mediated stimulation during the course of the recall response. Moreover, CD70 expression by CD8 T cells could not rescue endogenous CD70−/− cells from defective expansion, arguing against a role for CD70-mediated T:T help in this model. Therefore, CD70 appears to be an important factor in the initiation of a robust and effective primary response but dispensable for CD8 T cell memory responses." @default.
- W2113051617 created "2016-06-24" @default.
- W2113051617 creator A5008500041 @default.
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- W2113051617 creator A5048758494 @default.
- W2113051617 creator A5080431922 @default.
- W2113051617 date "2013-02-01" @default.
- W2113051617 modified "2023-09-25" @default.
- W2113051617 title "CD70 Deficiency Impairs Effector CD8 T Cell Generation and Viral Clearance but Is Dispensable for the Recall Response to Lymphocytic Choriomeningitis Virus" @default.
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- W2113051617 doi "https://doi.org/10.4049/jimmunol.1202353" @default.
- W2113051617 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3552005" @default.
- W2113051617 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/23269247" @default.
- W2113051617 hasPublicationYear "2013" @default.
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