期刊
EUROPEAN JOURNAL OF IMMUNOLOGY
卷 45, 期 10, 页码 2762-2765出版社
WILEY
DOI: 10.1002/eji.201545959
关键词
CD8(+) T cell; Effector cell; Homolog of Blimp-1 in T cells; Human; T-cell differentiation; Transcription factor
类别
Besides growing plants, eating a lot, and drinking beer, Tolkien's Hobbits enjoy maintaining a quiet state. Regarding the latter, the name chosen for a recently discovered transcription factor seems to be unintentionally appropriate. The zinc finger protein ZNF683 was originally named Hobit for Homolog of Blimp-1 in T cells. In this issue of the European Journal of Immunology, Braga etal. [Eur. J. Immunol. 2015. 45: 2945-2958] demonstrate that in humans, Hobit is almost exclusively expressed in effector T cells, in particular in quiescent and long-lived effector-type CD8(+) T cells. Hobit may initially appear as another player in the quest for transcription factors guiding T-cell differentiation; the discoveries of T-bet, Eomes, Blimp-1, and others have significantly contributed to our understanding of how this process is tightly regulated. However, Hobit may be specialthe currently available results suggest substantial differences in Hobit's regulatory functions between mice and humans, such as expression patterns and IFN- regulation. And it may turn out that Hobit's function in human T cells is highly adapted to lifelong, periodic challenges with varying, physiological doses of pathogens. Thus, the new study about Hobit in human T cells may be the beginning of a long journey.
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