A critical role for NF-κB transcription factors in the development of CD8+ memory-phenotype T cells
2003
Abstract Memory T cells are essential for generating secondary immune responses and so provide long-lived protection from pathogens. The mechanisms that regulate the differentiation and survival of memory T cells are largely unknown. Transgenic mice in which NF-κB activity is inhibited by the expression of a dominant-negative form of IκB-α (mIκB-α mice) have drastically diminished numbers of CD8 + memory-phenotype cells. The development of activated mIκB-α CD8 cells into memory-phenotype CD8 cells was severely impaired after adoptive transfer to lymphopenic hosts. Our findings demonstrate a critical role for NF-κB transcription factors in determining the number of memory-phenotype CD8 cells.
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