Differential Survival of Cytotoxic T Cells and Memory Cell Precursors
نویسندگان
چکیده
منابع مشابه
Differential survival of cytotoxic T cells and memory cell precursors.
It is widely assumed that the development of memory CD8 T cells requires the escape of CTLs from programmed cell death. We show in this study that although serine protease inhibitor 6 (Spi6) is required to protect clonal bursts of CTLs from granzyme B-induced programmed cell death, it is not required for the development of memory cells. This conclusion is reached because memory cell precursors ...
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Strain AS rats respond with two populations of cytotoxic T lymphocytes to stimulation in vitro by the major histocompatibility complex (MHC)-incompatible strain HL rat tumor (HL-A2T2). One is specific for MHC alloantigens present on both HL-A2T2 and normal HL targets, the other is tumor specific. The activation of these killer cells requires helper T lymphocytes. The tumor-specific helper cells...
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Antigen-specific helper T cells are required in the generation of cytotoxic T cells from thymocyte precursors. We have demonstrated that these alloantigen-specific helper cells can be generated in vitro and that both the quantity and quality of the helpers appear to be superior to the help obtained from unprimed spleen cells. Optimal helper cell activity is produced at day two of culture when C...
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Induction of neonatal tolerance leads to a profound reduction in cytotoxic T-lymphocyte precursor frequencies against the tolerated alloantigen ("tolerogen") as evaluated by limiting-dilution analysis. The curves obtained were linear within the range tested and, thus, did not yield evidence for any dissociation of cytotoxic precursors from regulatory cell populations. However, it could be shown...
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ژورنال
عنوان ژورنال: The Journal of Immunology
سال: 2007
ISSN: 0022-1767,1550-6606
DOI: 10.4049/jimmunol.178.6.3483