Maturation of microRNA is hormonally regulated by a nuclear receptor

Mol Cell. 2009 Oct 23;36(2):340-7. doi: 10.1016/j.molcel.2009.08.017.

Abstract

Steroid hormones and their cognate nuclear receptors exert a wide spectrum of biological actions through regulation of transcriptional and posttranscriptional processes. However, the underlying molecular mechanism by which steroid hormones control posttranscriptional processes is largely unknown. We now report that estrogen receptor alpha (ERalpha) inhibits the maturation of a particular microRNA (miRNA) and thereby stabilizes the mRNA of an ERalpha target gene through the 3'UTR. Estrogen-bound ERalpha downregulated expression of a set of miRNAs in both animals and cultured cells. Activated ERalpha attenuated the processing of primary miRNAs into pre-miRNAs through estrogen-dependent association with the Drosha complex, resulting in stabilization of the transcript of an ERalpha target gene through its 3'UTR. Thus, a steroid hormone achieves posttranscriptional control by regulating the maturation of miRNA.

Publication types

  • Research Support, Non-U.S. Gov't
  • Retracted Publication

MeSH terms

  • 3' Untranslated Regions
  • Animals
  • Cell Line, Tumor
  • Down-Regulation / drug effects
  • Estrogen Receptor alpha / metabolism*
  • Estrogens / pharmacology*
  • Humans
  • Mice
  • MicroRNAs / genetics*
  • Ribonuclease III / metabolism
  • Vascular Endothelial Growth Factor A / genetics

Substances

  • 3' Untranslated Regions
  • Estrogen Receptor alpha
  • Estrogens
  • MicroRNAs
  • Vascular Endothelial Growth Factor A
  • Drosha protein, mouse
  • Ribonuclease III