Wnt/beta-catenin signalling regulates cell proliferation by modulating the cell cycle and is negatively regulated by conductin/axin2/axil. We show that conductin levels peak at G2/M followed by a rapid decline during return to G1. In line with this, Wnt/beta-catenin target genes are low at G2/M and high at G1/S, and beta-catenin phosphorylation oscillates during the cell cycle in a conductin-dependent manner. Conductin is degraded by the anaphase-promoting complex/cyclosome cofactor CDC20. Knockdown of CDC20 blocks Wnt signalling through conductin. CDC20-resistant conductin inhibits Wnt signalling and attenuates colony formation of colorectal cancer cells. We propose that CDC20-mediated degradation of conductin regulates Wnt/beta-catenin signalling for maximal activity during G1/S.
机构:
Univ Cambridge, Sainsbury Lab, Bateman St, Cambridge CB2 1LR, England
CALTECH, Howard Hughes Med Inst, 1200 East Calif Blvd, Pasadena, CA 91125 USA
CALTECH, Div Biol & Biol Engn, 1200 East Calif Blvd, Pasadena, CA 91125 USAUniv Cambridge, Sainsbury Lab, Bateman St, Cambridge CB2 1LR, England
机构:
Stanford Univ, Dept Dev Biol, Stanford, CA 94305 USA
Stanford Univ, Howard Hughes Med Inst, Stanford, CA 94305 USAStanford Univ, Dept Dev Biol, Stanford, CA 94305 USA
Bowman, Angela N.
van Amerongen, Renee
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Stanford Univ, Dept Dev Biol, Stanford, CA 94305 USA
Stanford Univ, Howard Hughes Med Inst, Stanford, CA 94305 USAStanford Univ, Dept Dev Biol, Stanford, CA 94305 USA
van Amerongen, Renee
Palmer, Theo D.
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Stanford Univ, Dept Neurosci, Inst Stem Cell Biol & Regenerat Med, Stanford, CA 94305 USAStanford Univ, Dept Dev Biol, Stanford, CA 94305 USA
Palmer, Theo D.
Nusse, Roeland
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Stanford Univ, Dept Dev Biol, Stanford, CA 94305 USA
Stanford Univ, Howard Hughes Med Inst, Stanford, CA 94305 USAStanford Univ, Dept Dev Biol, Stanford, CA 94305 USA
机构:
Wenzhou Med Univ, Affiliated Hosp 1, Dept Urol, Wenzhou 325000, Zhejiang, Peoples R ChinaWenzhou Med Univ, Affiliated Hosp 1, Dept Urol, Wenzhou 325000, Zhejiang, Peoples R China
Xie, Hui
Huang, Hang
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Wenzhou Med Univ, Affiliated Hosp 1, Dept Urol, Wenzhou 325000, Zhejiang, Peoples R ChinaWenzhou Med Univ, Affiliated Hosp 1, Dept Urol, Wenzhou 325000, Zhejiang, Peoples R China
Huang, Hang
Huang, Weiping
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Wenzhou Med Univ, Affiliated Hosp 1, Dept Urol, Wenzhou 325000, Zhejiang, Peoples R ChinaWenzhou Med Univ, Affiliated Hosp 1, Dept Urol, Wenzhou 325000, Zhejiang, Peoples R China
Huang, Weiping
Xie, Zhiyue
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机构:
Southern Med Univ, Clin Coll 1, Guangzhou, Guangdong, Peoples R ChinaWenzhou Med Univ, Affiliated Hosp 1, Dept Urol, Wenzhou 325000, Zhejiang, Peoples R China
Xie, Zhiyue
Yang, Yu
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Wenzhou Med Univ, Affiliated Hosp 1, Dept Urol, Wenzhou 325000, Zhejiang, Peoples R ChinaWenzhou Med Univ, Affiliated Hosp 1, Dept Urol, Wenzhou 325000, Zhejiang, Peoples R China
Yang, Yu
Wang, Feng
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Wenzhou Med Univ, Affiliated Hosp 1, Dept Urol, Wenzhou 325000, Zhejiang, Peoples R ChinaWenzhou Med Univ, Affiliated Hosp 1, Dept Urol, Wenzhou 325000, Zhejiang, Peoples R China