Regulation of miR-17-92a cluster processing by the microRNA binding protein SND1

Eva Marie Heinrich, Jasmin Wagner, Marcus Krüger, David John, Shizuka Uchida, Julia E. Weigand, Beatrix Suess, Stefanie Dimmeler

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

MicroRNAs are small non-coding RNAs that regulate gene expression. Although all seven members of the miR-17-92a cluster originate from one primary transcript they are differentially expressed suggesting the presence of posttranscriptional regulation. By RNA pulldown and mass spectrometry we identified SND1, a known regulator of edited RNAs, interacting with pre-miR-92a and all mature miR-17-92a members. Hypoxic conditions lead to an elevation of the pri-miR-17-92a transcript and significantly increased levels of the precursors whereas the mature miRs were not significantly changed. SND1 silencing resolved this block in processing and induced an increase in mature miRs. Together, SND1 might be the missing link between hypoxia and the differential regulation of miRNA processing.

Original languageEnglish
Pages (from-to)2405-2411
Number of pages7
JournalFEBS Letters
Volume587
Issue number15
DOIs
StatePublished - 2 Aug 2013
Externally publishedYes

Keywords

  • Endothelial
  • Keywords
  • MicroRNA
  • Processing
  • Tudor-SN

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