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Deregulated developmental processes in the cerebellum cause medulloblastoma, the most common malignant tumor of the central nervous system. About 20-30% of cases are caused by mutations increasing the activity of the Sonic hedgehog (Shh) pathway, a critical mitogen in cerebellar development. The pro...
ORGANISM(S): Mus musculus 
Microarray analysis has been useful for identifying the targets of many transcription factors. However, gene expression changes in response to transcription factor perturbation reveal both direct transcriptional targets and secondary gene regulation. By integrating RNA interference, gene expression ...
ORGANISM(S): Homo sapiens 
microRNAs in the miR-106b family are overexpressed in multiple tumor types and are correlated with the expression of genes that regulate the cell cycle. Consistent with these observations, miR-106b family gain of function promotes cell cycle progression, whereas loss of function reverses this phenot...
ORGANISM(S): Homo sapiens 
Cell cycle arrest in response to DNA damage is an important anti-tumorigenic mechanism. microRNAs (miRNAs) were shown recently to play key regulatory roles in cell cycle progression. For example, miR-34a is induced in response to p53 activation and mediates G1 arrest by down-regulating multiple ce...
ORGANISM(S): Homo sapiens 
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