Abstract：
:Multiciliated cells (MCCs) harbor dozens to hundreds of motile cilia, which generate hydrodynamic forces important in animal physiology. In vertebrates, MCC differentiation involves massive centriole production by poorly characterized structures called deuterosomes. Here, single-cell RNA sequencing reveals that human deuterosome stage MCCs are characterized by the expression of many cell cycle-related genes. We further investigated the uncharacterized vertebrate-specific cell division cycle 20B (CDC20B) gene, which hosts microRNA-449abc. We show that CDC20B protein associates to deuterosomes and is required for centriole release and subsequent cilia production in mouse and Xenopus MCCs. CDC20B interacts with PLK1, a kinase known to coordinate centriole disengagement with the protease Separase in mitotic cells. Strikingly, over-expression of Separase rescues centriole disengagement and cilia production in CDC20B-deficient MCCs. This work reveals the shaping of deuterosome-mediated centriole production in vertebrate MCCs, by adaptation of canonical and recently evolved cell cycle-related molecules.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Revinski DR,Zaragosi LE,Boutin C,Ruiz-Garcia S,Deprez M,Thomé V,Rosnet O,Gay AS,Mercey O,Paquet A,Pons N,Ponzio G,Marcet B,Kodjabachian L,Barbry Pdoi
10.1038/s41467-018-06768-zsubject
Has Abstractpub_date
2018-11-07 00:00:00pages
4668issue
1issn
2041-1723pii
10.1038/s41467-018-06768-zjournal_volume
9pub_type
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