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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Immunity 2016 ; 44 (5): 1140-50 Nephropedia Template TP
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A progenitor cell expressing transcription factor ROR?t generates all human innate lymphoid cell subsets #MMPMID27178467
Immunity 2016[May]; 44 (5): 1140-50 PMID27178467show ga
The current model of murine innate lymphoid cell (ILC) development holds that mouse ILCs are derived downstream of the common lymphoid progenitor through lineage-restricted progenitors. However, corresponding lineage-restricted progenitors in humans have yet to be discovered. Here we identified a progenitor population in human secondary lymphoid tissues (SLTs) that expressed the transcription factor, ROR?t, and was unique in its ability to generate all known ILC subsets, including natural killer (NK) cells, but not other leukocyte populations. In contrast to murine fate-mapping data, which indicate that only ILC3 cells express Ror?t, these human progenitor cells as well as human peripheral blood NK cells and all mature ILC populations expressed ROR?t. Thus, all human ILCs can be generated through an ROR?t+ developmental pathway from a common progenitor in SLTs. These findings help establish the developmental signals and pathways involved in human ILC development.