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- Title
CCRK depletion inhibits glioblastoma cell proliferation in a cilium-dependent manner.
- Authors
Yang, Ying; Roine, Niina; Mäkelä, Tomi P
- Abstract
Loss of primary cilia is frequently observed in tumour cells, including glioblastoma cells, and proposed to benefit tumour growth, but a causal link has not been established. Here, we show that CCRK (cell cycle-related kinase) and its substrate ICK (intestinal cell kinase) inhibit ciliogenesis. Depletion of CCRK leads to accumulation of ICK at ciliary tips, altered ciliary transport and inhibition of cell cycle re-entry in NIH3T3 fibroblasts. In glioblastoma cells with deregulated high levels of CCRK, its depletion restores cilia through ICK and an ICK-related kinase MAK, thereby inhibiting glioblastoma cell proliferation. These results indicate that inhibition of ciliogenesis might be a mechanism used by cancer cells to provide a growth advantage.
- Publication
EMBO reports, 2013, Vol 14, Issue 8, p741
- ISSN
1469-3178
- Publication type
Journal Article
- DOI
10.1038/embor.2013.80