[HTML][HTML] Actin remodelling factors control ciliogenesis by regulating YAP/TAZ activity and vesicle trafficking

J Kim, H Jo, H Hong, MH Kim, JM Kim, JK Lee… - Nature …, 2015 - nature.com
Nature communications, 2015nature.com
Primary cilia exert a profound impact on cell signalling and cell cycle progression. Recently,
actin cytoskeleton destabilization has been recognized as a dominant inducer of
ciliogenesis, but the exact mechanisms regulating ciliogenesis remain poorly understood.
Here we show that the actin cytoskeleton remodelling controls ciliogenesis by regulating
transcriptional coactivator YAP/TAZ as well as ciliary vesicle trafficking. Cytoplasmic
retention of YAP/TAZ correlates with active ciliogenesis either in spatially confined cells or in …
Abstract
Primary cilia exert a profound impact on cell signalling and cell cycle progression. Recently, actin cytoskeleton destabilization has been recognized as a dominant inducer of ciliogenesis, but the exact mechanisms regulating ciliogenesis remain poorly understood. Here we show that the actin cytoskeleton remodelling controls ciliogenesis by regulating transcriptional coactivator YAP/TAZ as well as ciliary vesicle trafficking. Cytoplasmic retention of YAP/TAZ correlates with active ciliogenesis either in spatially confined cells or in cells treated with an actin filament destabilizer. Moreover, knockdown of YAP/TAZ is sufficient to induce ciliogenesis, whereas YAP/TAZ hyperactivation suppresses serum starvation-mediated ciliogenesis. We also identify actin remodelling factors LIMK2 and TESK1 as key players in the ciliogenesis control network in which YAP/TAZ and directional vesicle trafficking are integral components. Our work provides new insights for understanding the link between actin dynamics and ciliogenesis.
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