Abstract：
: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 summary, 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.
journal_name
Cell Repjournal_title
Cell reportsauthors
Marshall CB,Mays DJ,Beeler JS,Rosenbluth JM,Boyd KL,Santos Guasch GL,Shaver TM,Tang LJ,Liu Q,Shyr Y,Venters BJ,Magnuson MA,Pietenpol JAdoi
10.1016/j.celrep.2016.02.035subject
Has Abstractpub_date
2016-03-15 00:00:00pages
2289-300issue
10issn
2211-1247pii
S2211-1247(16)30138-3journal_volume
14pub_type
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