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NudC regulates actin dynamics and ciliogenesis by stabilizing cofilin 1

Emerging data indicate that actin dynamics is associated with ciliogenesis. However, the underlying mechanism remains unclear. Here we find that nuclear distribution gene C (NudC), an Hsp90 co-chaperone, is required for ac- tin organization and dynamics. Depletion of NudC promotes cilia elongation a...

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Published in:Cell research 2016-02, Vol.26 (2), p.239-253
Main Authors: Zhang, Cheng, Zhang, Wen, Lu, Yi, Yan, Xiaoyi, Yan, Xiumin, Zhu, Xueliang, Liu, Wei, Yang, Yuehong, Zhou, Tianhua
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description Emerging data indicate that actin dynamics is associated with ciliogenesis. However, the underlying mechanism remains unclear. Here we find that nuclear distribution gene C (NudC), an Hsp90 co-chaperone, is required for ac- tin organization and dynamics. Depletion of NudC promotes cilia elongation and increases the percentage of ciliated cells. Further results show that NudC binds to and stabilizes cofilin 1, a key regulator of actin dynamics. Knockdown of cofilin 1 also facilitates ciliogenesis. Moreover, depletion of either NudC or cofilin 1 causes similar ciliary defects in zebrafish, including curved body, pericardial edema and defective left-right asymmetry. Ectopic expression of cofilin 1 significantly reverses the phenotypes induced by NudC depletion in both cultured cells and zebrafish. Thus, our data suggest that NudC regulates aetin cytoskeleton and ciliogenesis by stabilizing cofilin 1.
doi_str_mv 10.1038/cr.2015.152
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631/80/128/1276
631/80/86
Actins - metabolism
Animals
Biomedical and Life Sciences
Cell Biology
Cells, Cultured
Cilia - metabolism
Cilia - physiology
Cofilin 1 - metabolism
Edema
Hsp90
HSP90 Heat-Shock Proteins
Life Sciences
Morphogenesis - physiology
Nuclear Proteins - metabolism
Original
original-article
Zebrafish - metabolism
Zebrafish - physiology
培养细胞
左右不对称
异位表达
稳定
纤毛细胞
组织动力学
肌动蛋白细胞骨架
title NudC regulates actin dynamics and ciliogenesis by stabilizing cofilin 1
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