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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-3-9
pubmed:abstractText
MicroRNAs (miRNAs) are non-protein-coding RNAs that function as post-transcriptional gene regulators. Recent evidence has shown that miRNA plays a pivotal role in the development of many cancers including glioma, a lethal brain cancer. We have recently compared the miRNA expression profiles between normal brain and glioma tissues from Chinese patients by miRNA microarray and identified a panel of differentially expressed miRNAs. Here, we studied the function of one miRNA, miR-15b, in glioma carcinogenesis and elucidated its downstream targets. Over-expression of miR-15b resulted in cell cycle arrest at G0/G1 phase while suppression of miR-15b expression resulted in a decrease of cell populations in G0/G1 and a corresponding increase of cell populations in S phase. We further showed that CCNE1 (encoding cyclin E1) is one of the downstream targets of miR-15b. Taken together, our findings indicate that miR-15b regulates cell cycle progression in glioma cells by targeting cell cycle-related molecules.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1090-2104
pubmed:author
pubmed:issnType
Electronic
pubmed:day
6
pubmed:volume
380
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
205-10
pubmed:dateRevised
2009-9-29
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
MicroRNA-15b regulates cell cycle progression by targeting cyclins in glioma cells.
pubmed:affiliation
Integrative Chemical Biology Laboratory, Institute of Molecular Technology, Department of Chemistry, 8/F, Kadoorie Biological Science Building, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't