Regulation of murine natural killer cell commitment

Natural killer (NK) cells can derive from the same precursors as B andT cells, however, to achieve lineage specificity, several transcription factors need to be activated or annulled. While a few important transcription factors have been identified for NK genesis the mechanisms of how this is achieved is far from resolved. Adding to the complexity of this, NK cells are found and potentially develop in diverse locations in vivo and it remains to be addressed if a common NK cell precursor seeds diverse niches and how transcription factors may differentially regulate NKcell commitment in distinct microenvironments. Here we will summarize some recent findings in NKcell commitment and discuss how a NKcell transcriptional network might be organized, while addressing some misconceptions and anomalies along the way.