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pubmed:abstractText |
TOX is a DNA-binding factor required for development of CD4(+) T cells, natural killer T cells and regulatory T cells. Here we document that both natural killer (NK) cell development and lymphoid tissue organogenesis were also inhibited in the absence of TOX. We found that the development of lymphoid tissue-inducer cells, a rare subset of specialized cells that has an integral role in lymphoid tissue organogenesis, required TOX. Tox was upregulated considerably in immature NK cells in the bone marrow, consistent with the loss of mature NK cells in the absence of this nuclear protein. Thus, many cell lineages of the immune system share a TOX-dependent step for development.
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