IGF2BP1 promotes SRF-dependent transcription in cancer in a m 6 A- and miRNA-dependent manner

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Simon Müller - , Martin Luther University Halle-Wittenberg (Author)
  • Markus Glaß - , Martin Luther University Halle-Wittenberg (Author)
  • Anurag K. Singh - , Martin Luther University Halle-Wittenberg (Author)
  • Jacob Haase - , Martin Luther University Halle-Wittenberg (Author)
  • Nadine Bley - , Martin Luther University Halle-Wittenberg (Author)
  • Tommy Fuchs - , Martin Luther University Halle-Wittenberg (Author)
  • Marcell Lederer - , Martin Luther University Halle-Wittenberg (Author)
  • Andreas Dahl - , DRESDEN-concept Genome Center (CMCB Core Facility) (Author)
  • Huilin Huang - , University of Antwerp, University of Cincinnati (Author)
  • Jianjun Chen - , University of Antwerp, University of Cincinnati (Author)
  • Guido Posern - , Martin Luther University Halle-Wittenberg (Author)
  • Stefan Hüttelmaier - , Martin Luther University Halle-Wittenberg (Author)

Abstract

The oncofetal mRNA-binding protein IGF2BP1 and the transcriptional regulator SRF modulate gene expression in cancer. In cancer cells, we demonstrate that IGF2BP1 promotes the expression of SRF in a conserved and N 6 -methyladenosine (m 6 A)-dependent manner by impairing the miRNA-directed decay of the SRF mRNA. This results in enhanced SRF-dependent transcriptional activity and promotes tumor cell growth and invasion. At the post-transcriptional level, IGF2BP1 sustains the expression of various SRF-target genes. The majority of these SRF/IGF2BP1-enhanced genes, including PDLIM7 and FOXK1, show conserved upregulation with SRF and IGF2BP1 synthesis in cancer. PDLIM7 and FOXK1 promote tumor cell growth and were reported to enhance cell invasion. Consistently, 35 SRF/IGF2BP1-dependent genes showing conserved association with SRF and IGF2BP1 expression indicate a poor overall survival probability in ovarian, liver and lung cancer. In conclusion, these findings identify the SRF/IGF2BP1-, miRNome- and m 6 A-dependent control of gene expression as a conserved oncogenic driver network in cancer.

Details

Original languageEnglish
Pages (from-to)375-390
Number of pages16
JournalNucleic acids research
Volume47
Issue number1
Publication statusPublished - 10 Jan 2019
Peer-reviewedYes

External IDs

PubMed 30371874

Keywords

Sustainable Development Goals

ASJC Scopus subject areas