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rdf:type |
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lifeskim:mentions |
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pubmed:dateCreated |
2011-5-26
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pubmed:abstractText |
Integrative genomics and genetics approaches have proven to be a useful tool in elucidating the complex relationships often found in gene regulatory networks. More importantly, a number of studies have provided the necessary experimental evidence confirming the validity of the causal relationships inferred using such an approach. By integrating messenger RNA (mRNA) expression data with microRNA (miRNA) (i.e. small non-coding RNA with well-established regulatory roles in a myriad of biological processes) expression data, we show how integrative genomics approaches can be used to characterize the role played by approximately a third of registered mouse miRNAs within the context of a liver gene regulatory network. Our analysis reveals that the transcript abundances of miRNAs are subject to regulatory control by many more loci than previously observed for mRNA expression. Moreover, our results indicate that miRNAs exist as highly connected hub-nodes and function as key sensors within the transcriptional network. We also provide evidence supporting the hypothesis that miRNAs can act cooperatively or redundantly to regulate a given pathway and that miRNAs play a subtle role by dampening expression of their target gene through the use of feedback loops.
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pubmed:commentsCorrections |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
1744-4292
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pubmed:author |
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pubmed:issnType |
Electronic
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pubmed:day |
24
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pubmed:volume |
7
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
490
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pubmed:meshHeading |
pubmed-meshheading:21613979-Animals,
pubmed-meshheading:21613979-Gene Expression Profiling,
pubmed-meshheading:21613979-Gene Regulatory Networks,
pubmed-meshheading:21613979-Genetic Linkage,
pubmed-meshheading:21613979-Genomics,
pubmed-meshheading:21613979-High-Throughput Screening Assays,
pubmed-meshheading:21613979-Male,
pubmed-meshheading:21613979-Mice,
pubmed-meshheading:21613979-Mice, Inbred C57BL,
pubmed-meshheading:21613979-Mice, Inbred DBA,
pubmed-meshheading:21613979-Mice, Transgenic,
pubmed-meshheading:21613979-MicroRNAs,
pubmed-meshheading:21613979-Oligonucleotide Array Sequence Analysis,
pubmed-meshheading:21613979-Quantitative Trait Loci,
pubmed-meshheading:21613979-RNA, Messenger
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pubmed:year |
2011
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pubmed:articleTitle |
Characterizing the role of miRNAs within gene regulatory networks using integrative genomics techniques.
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pubmed:affiliation |
Molecular and Cellular Biology Program, University of Washington, Seattle, WA, USA.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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