Title |
Repression of GW/P body components and the RNAi microprocessor impacts primary ciliogenesis in human astrocytes
|
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Published in |
BMC Molecular and Cell Biology, August 2011
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DOI | 10.1186/1471-2121-12-37 |
Pubmed ID | |
Authors |
Joanna J Moser, Marvin J Fritzler, Jerome B Rattner |
Abstract |
In most cells, the centriolar component of the centrosome can function as a basal body supporting the formation of a primary cilium, a non-motile sensory organelle that monitors information from the extracellular matrix and relays stimuli into the cell via associated signaling pathways. Defects in the formation and function of primary cilia underlie multiple human diseases and are hallmarks of malignancy. The RNA silencing pathway is involved in the post-transcriptional silencing of > 50% of mRNA that occurs within GW/P bodies. GW/P bodies are found throughout the cytoplasm and previously published live cell imaging data suggested that in a malignant cell type (U2OS), two GW/P bodies reside at the centrosome during interphase. This led us to investigate if a similar relationship exists in primary cells and if the inhibition of the miRNA pathway impairs primary cilium formation. |
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