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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2009-7-16
pubmed:abstractText
Signal transducers and activators of transcription-3 (Stat3) plays a central role in interleukin-6 (IL-6)-mediated cell proliferation by inhibiting apoptosis in a variety of cell types. MicroRNA-21 (miRNA-21), a ubiquitous miRNA, acts as an anti-apoptotic factor that seems to be indirectly but strictly linked to Stat3. In order to determine whether the IL-6 induced Stat3 anti-apoptosis pathway is linked with miRNA-21, we first determined the effects of recombinant mouse IL-6 on Stat3 expression, mouse embryo viability, and the mRNA levels of apoptosis related genes and miRNA-21 during mouse embryo development in vitro. Addition of 10 or 100 ng/ml of recombinant IL-6 to the culture medium did not affect the developmental ability of 2-cell stage embryos into blastocysts. However, total cell number was significantly increased and apoptosis was reduced in blastocyst stage embryos cultured in the presence of 100 ng/ml of recombinant IL-6. Furthermore, addition of recombinant IL-6 to the culture medium significantly increased the copy numbers of anti-apoptotic miRNA-21, up-regulated Bcl2l1, and down-regulated casp3. Similarly, the injection of mature miRNA-21 into cells up-regulated Bcl2l1 and down-regulated casp3. These results suggest that the induction of the Stat3 anti-apoptotic pathway by IL-6 is linked to miRNA-21 expression, which possibly results in the regulation of cell apoptosis in early mouse embryo development.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1098-2795
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
76
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
854-62
pubmed:meshHeading
pubmed-meshheading:19437447-Animals, pubmed-meshheading:19437447-Apoptosis, pubmed-meshheading:19437447-Apoptosis Regulatory Proteins, pubmed-meshheading:19437447-Blastocyst, pubmed-meshheading:19437447-Cell Membrane, pubmed-meshheading:19437447-Cell Nucleus, pubmed-meshheading:19437447-Data Interpretation, Statistical, pubmed-meshheading:19437447-Female, pubmed-meshheading:19437447-Gene Expression, pubmed-meshheading:19437447-Interleukin-6, pubmed-meshheading:19437447-Mice, pubmed-meshheading:19437447-MicroRNAs, pubmed-meshheading:19437447-Microscopy, Confocal, pubmed-meshheading:19437447-Microscopy, Fluorescence, pubmed-meshheading:19437447-Phosphorylation, pubmed-meshheading:19437447-RNA, Messenger, pubmed-meshheading:19437447-Recombinant Proteins, pubmed-meshheading:19437447-STAT3 Transcription Factor, pubmed-meshheading:19437447-Signal Transduction
pubmed:year
2009
pubmed:articleTitle
A link between the interleukin-6/Stat3 anti-apoptotic pathway and microRNA-21 in preimplantation mouse embryos.
pubmed:affiliation
Department of Animal Sciences, Chungbuk National University, Gaesin-dong Cheongju, Chungbuk 361-763, South Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't