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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
TranscriptomicsMyc influences embryonic stem cell pluripotency by regulating miRNAs
Previous studies have demonstrated that the c-Myc transcription factor regulates and cooperates with oncogenic miRNAs to accelerate tumorigenesis. Much recent work has shown that Myc plays an important role in stem cell pluripotency. These findings have prompted us to determine whether Myc regulates...
ORGANISM(S): Mus musculus 
2010-06-25 | E-GEOD-13127 | biostudies-arrayexpress
TranscriptomicsmicroRNA-like off-target transcript regulation by siRNAs
siRNAs mediate sequence-specific gene silencing in cultured mammalian cells but also silence unintended transcripts. Many siRNA off-target transcripts match the guide-strand ‘‘seed region,’’ similar to the way microRNAs match their target sites. The extent to which this seed-matched, microRNA-like, ...
ORGANISM(S): Mus musculus 
2009-01-31 | E-GEOD-14073 | 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
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
TranscriptomicsGenome-scale RNAi profiling of cell division in human tissue culture cells
Cell division is a fundamental process for multicellula organisation. Here we report a genome-scale RNAi screen in HeLa cells designed to identify human genes important for cell division. We utilized a library of endoribonuclease-prepared siRNAs (esiRNAs) for gene-silencing and used DNA content an...
ORGANISM(S): Homo sapiens 
2010-06-25 | E-GEOD-9176 | biostudies-arrayexpress
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