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Asymmetric inheritance of centrosome-associated primary cilium membrane directs ciliogenesis after cell division.

MPG-Autoren
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Paridaen,  Judith
Max Planck Institute of Molecular Cell Biology and Genetics, Max Planck Society;

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Wilsch-Bräuninger,  Michaela
Max Planck Institute of Molecular Cell Biology and Genetics, Max Planck Society;

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Huttner,  Wieland B.
Max Planck Institute of Molecular Cell Biology and Genetics, Max Planck Society;

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Zitation

Paridaen, J., Wilsch-Bräuninger, M., & Huttner, W. B. (2013). Asymmetric inheritance of centrosome-associated primary cilium membrane directs ciliogenesis after cell division. Cell, 155(2), 333-344.


Zitierlink: http://hdl.handle.net/21.11116/0000-0001-068C-B
Zusammenfassung
Primary cilia are key sensory organelles that are thought to be disassembled prior to mitosis. Inheritance of the mother centriole, which nucleates the primary cilium, in relation to asymmetric daughter cell behavior has previously been studied. However, the fate of the ciliary membrane upon cell division is unknown. Here, we followed the ciliary membrane in dividing embryonic neocortical stem cells and cultured cells. Ciliary membrane attached to the mother centriole was endocytosed at mitosis onset, persisted through mitosis at one spindle pole, and was asymmetrically inherited by one daughter cell, which retained stem cell character. This daughter re-established a primary cilium harboring an activated signal transducer earlier than the noninheriting daughter. Centrosomal association of ciliary membrane in dividing neural stem cells decreased at late neurogenesis when these cells differentiate. Our data imply that centrosome-associated ciliary membrane acts as a determinant for the temporal-spatial control of ciliogenesis.