ZFIN ID: ZDB-PUB-190425-2
Specific inhibition of splicing factor activity by decoy RNA oligonucleotides
Denichenko, P., Mogilevsky, M., Cléry, A., Welte, T., Biran, J., Shimshon, O., Barnabas, G.D., Danan-Gotthold, M., Kumar, S., Yavin, E., Levanon, E.Y., Allain, F.H., Geiger, T., Levkowitz, G., Karni, R.
Date: 2019
Source: Nature communications   10: 1590 (Journal)
Registered Authors: Biran, Jacob, Levkowitz, Gil
Keywords: none
MeSH Terms:
  • Alternative Splicing
  • Animals
  • Animals, Genetically Modified
  • Binding Sites
  • Glioblastoma/genetics
  • Glioblastoma/pathology
  • HEK293 Cells
  • Heterogeneous-Nuclear Ribonucleoproteins/antagonists & inhibitors
  • Heterogeneous-Nuclear Ribonucleoproteins/genetics*
  • Heterogeneous-Nuclear Ribonucleoproteins/metabolism
  • Humans
  • MAP Kinase Signaling System/genetics
  • Muscle, Skeletal/growth & development
  • Nonsense Mediated mRNA Decay
  • Oligonucleotides/chemistry
  • Oligonucleotides/metabolism
  • Oligonucleotides/pharmacology*
  • Polypyrimidine Tract-Binding Protein/antagonists & inhibitors
  • Polypyrimidine Tract-Binding Protein/genetics*
  • Polypyrimidine Tract-Binding Protein/metabolism
  • RNA Splicing Factors/antagonists & inhibitors
  • RNA Splicing Factors/genetics*
  • RNA Splicing Factors/metabolism
  • Serine-Arginine Splicing Factors/antagonists & inhibitors
  • Serine-Arginine Splicing Factors/genetics*
  • Serine-Arginine Splicing Factors/metabolism
  • Tandem Repeat Sequences
  • Xenograft Model Antitumor Assays
  • Zebrafish/embryology
  • Zebrafish/genetics
PubMed: 30962446 Full text @ Nat. Commun.
Alternative splicing, a fundamental step in gene expression, is deregulated in many diseases. Splicing factors (SFs), which regulate this process, are up- or down regulated or mutated in several diseases including cancer. To date, there are no inhibitors that directly inhibit the activity of SFs. We designed decoy oligonucleotides, composed of several repeats of a RNA motif, which is recognized by a single SF. Here we show that decoy oligonucleotides targeting splicing factors RBFOX1/2, SRSF1 and PTBP1, can specifically bind to their respective SFs and inhibit their splicing and biological activities both in vitro and in vivo. These decoy oligonucleotides present an approach to specifically downregulate SF activity in conditions where SFs are either up-regulated or hyperactive.