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TranscriptomicsOncogenic mutation in Smoothened causes severe cerebellar developmental defects and medulloblastoma in mice
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 
2012-11-02 | E-GEOD-34593 | biostudies-arrayexpress
TranscriptomicsWidespread siRNA "off-target" transcript silencing mediated by seed region sequence complementarity
Transfected siRNAs and miRNAs regulate numerous transcripts that have only limited complementarity to the active strand of the RNA duplex. This process reflects natural target regulation by miRNAs, but is an unintended (â??off-targetâ??) consequence of siRNA-mediated silencing. Here we demonstrate...
ORGANISM(S): Homo sapiens 
2006-09-12 | E-GEOD-5814 | biostudies-arrayexpress
TranscriptomicsCoordinated regulation of cell cycle transcripts by p53-inducible microRNAs, miR -192 and -215
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 
2010-06-24 | E-GEOD-13105 | biostudies-arrayexpress
TranscriptomicsMicroRNAs in the miR-106b family regulate p21/CDKN1A and promote cell cycle progression.
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 
2010-06-23 | E-GEOD-14831 | biostudies-arrayexpress
TranscriptomicsT lymphocyte activation gene identification by coregulated expression on DNA microarrays
High-capacity methods for assessing gene function have become increasingly important because of the increasing number of newly identified genes emerging from large-scale genome sequencing and cDNA cloning efforts. We investigated the use of DNA microarrays to identify uncharacterized genes specifica...
ORGANISM(S): Homo sapiens 
2004-01-31 | E-GEOD-902 | biostudies-arrayexpress
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