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Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Cell+Rep 2016 ; 14 (10): 2289-300 Nephropedia Template TP
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p73 is Required for Multiciliogenesis and Regulates the Foxj1-Associated Gene Network #MMPMID26947080
Cell Rep 2016[Mar]; 14 (10): 2289-300 PMID26947080show ga
We report that p73 is expressed in multiciliated cells (MCCs), is required for MCC differentiation, and directly regulates transcriptional modulators of multiciliogenesis. Loss of ciliary biogenesis provides a unifying mechanism for many phenotypes observed in p73 knockout mice including hydrocephalus, hippocampal dysgenesis, sterility and chronic inflammation/infection of lung, middle ear and sinus. Through p73 and p63 ChIP-seq using murine tracheal cells, we identified over 100 putative p73 target genes that regulate MCC differentiation and homeostasis. We validated Foxj1, a transcriptional regulator of multiciliogenesis, and many other cilia-associated genes as direct target genes of p73 and p63. We show p73 and p63 are co-expressed in a subset of basal cells, and suggest that p73 ?marks? these cells for MCC differentiation. In sum, p73 is essential for MCC differentiation, functions as a critical regulator of a transcriptome required for MCC differentiation and, like p63, has an essential role in development of tissues.