Casein kinase 1 delta functions at the centrosome to mediate Wnt-3a-dependent neurite outgrowth.
Casein kinase 1 delta functions at the centrosome to mediate Wnt-3a-dependent neurite outgrowth.
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DOI:
10.1083/jcb.201011111
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发表时间:
2011-03-21
期刊:
影响因子:
--
通讯作者:
Rubin JS
中科院分区:
文献类型:
--
作者:
Greer YE;Rubin JS
Centrosomal localization of kinase-active CK1δ is required for neurite outgrowth in response to Wnt-3a. Previously we determined that Dishevelled-2/3 (Dvl) mediate Wnt-3a–dependent neurite outgrowth in Ewing sarcoma family tumor cells. Here we report that neurite extension was associated with Dvl phosphorylation and that both were inhibited by the casein kinase 1 (CK1) δ/ε inhibitor IC261. Small interfering RNAs targeting either CK1δ or CK1ε decreased Dvl phosphorylation, but only knockdown of CK1δ blocked neurite outgrowth. CK1δ but not CK1ε was detected at the centrosome, an organelle associated with neurite formation. Deletion analysis mapped the centrosomal localization signal (CLS) of CK1δ to its C-terminal domain. A fusion protein containing the CLS and EGFP displaced full-length CK1δ from the centrosome and inhibited Wnt-3a–dependent neurite outgrowth. In contrast to wild-type CK1ε, a chimera comprised of the kinase domain of CK1ε and the CLS of CK1δ localized to the centrosome and rescued Wnt-3a–dependent neurite outgrowth suppressed by CK1δ knockdown. These results provide strong evidence that the centrosomal localization of CK1δ is required for Wnt-3a–dependent neuritogenesis.
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影响因子:
25
作者:
Liu, YB;Shi, J;Zou, YM
通讯作者:
Zou, YM
DOI:
10.1083/jcb.200309096
发表时间:
2004-01-19
期刊:
The Journal of cell biology
影响因子:
--
作者:
Ciani L;Krylova O;Smalley MJ;Dale TC;Salinas PC
通讯作者:
Salinas PC
影响因子:
4.8
作者:
GRAVES, PR;ROACH, PJ
通讯作者:
ROACH, PJ
影响因子:
7.7
作者:
Bryja, Vitezslav;Schambony, Alexandra;Schulte, Gunnar
通讯作者:
Schulte, Gunnar
影响因子:
4
作者:
Babu, P;Bryan, JD;Robinson, LC
通讯作者:
Robinson, LC