Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2008-11-3
pubmed:abstractText
Studies support the importance of microRNAs in physiological and pathological processes. Here we describe the regulation and function of miR-29 in myogenesis and rhabdomyosarcoma (RMS). Results demonstrate that in myoblasts, miR-29 is repressed by NF-kappaB acting through YY1 and the Polycomb group. During myogenesis, NF-kappaB and YY1 downregulation causes derepression of miR-29, which in turn accelerates differentiation by targeting its repressor YY1. However, in RMS cells and primary tumors that possess impaired differentiation, miR-29 is epigenetically silenced by an activated NF-kappaB-YY1 pathway. Reconstitution of miR-29 in RMS in mice inhibits tumor growth and stimulates differentiation, suggesting that miR-29 acts as a tumor suppressor through its promyogenic function. Together, these results identify a NF-kappaB-YY1-miR-29 regulatory circuit whose disruption may contribute to RMS.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1878-3686
pubmed:author
pubmed:issnType
Electronic
pubmed:day
4
pubmed:volume
14
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
369-81
pubmed:dateRevised
2011-9-22
pubmed:meshHeading
pubmed-meshheading:18977326-Animals, pubmed-meshheading:18977326-Blotting, Western, pubmed-meshheading:18977326-Cell Cycle, pubmed-meshheading:18977326-Cell Differentiation, pubmed-meshheading:18977326-Cell Proliferation, pubmed-meshheading:18977326-Cells, Cultured, pubmed-meshheading:18977326-Chromatin Immunoprecipitation, pubmed-meshheading:18977326-Computational Biology, pubmed-meshheading:18977326-Down-Regulation, pubmed-meshheading:18977326-Feedback, Physiological, pubmed-meshheading:18977326-Fibroblasts, pubmed-meshheading:18977326-Gene Expression Regulation, Developmental, pubmed-meshheading:18977326-Humans, pubmed-meshheading:18977326-Mice, pubmed-meshheading:18977326-Mice, Inbred C57BL, pubmed-meshheading:18977326-MicroRNAs, pubmed-meshheading:18977326-Muscle Development, pubmed-meshheading:18977326-Myoblasts, Skeletal, pubmed-meshheading:18977326-NF-kappa B, pubmed-meshheading:18977326-Nucleic Acid Conformation, pubmed-meshheading:18977326-Promoter Regions, Genetic, pubmed-meshheading:18977326-Rhabdomyosarcoma, pubmed-meshheading:18977326-Signal Transduction, pubmed-meshheading:18977326-YY1 Transcription Factor
pubmed:year
2008
pubmed:articleTitle
NF-kappaB-YY1-miR-29 regulatory circuitry in skeletal myogenesis and rhabdomyosarcoma.
pubmed:affiliation
Department of Molecular Virology, Human Cancer Genetics Program, The Ohio State University, Columbus, OH 43210, USA.
pubmed:publicationType
Journal Article, Research Support, N.I.H., Extramural