Evidence map›Paper›PMID 25845590›Full record

ArticleNucleic acids research2015

Splicing factor SRSF1 negatively regulates alternative splicing of MDM2 under damage.

Daniel F Comiskey, Aishwarya G Jacob, Ravi K Singh, Aixa S Tapia-Santos, Dawn S Chandler

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.1field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 65 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Alternative RNA splicing defects in pediatric cancers: new insights in tumorigenesis and potential therapeutic vulnerabilities.Annals of oncology : official journal of the European Society for Medical Oncology · 2022
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. SRSF2 Regulation ofMolecular cancer research : MCR · 2020
    Article
  17. Article
  18. Review
  19. Alternative Splicing in Angiogenesis.International journal of molecular sciences · 2019
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Daniel F ComiskeyDepartment of Pediatrics, The Ohio State University, Columbus, OH 43210, USA Center for Childhood Cancer, The Research Institute at Nationwide Children's Hospital, 700 Childrens Drive WA5023, Columbus, OH 43205, USA.
Aishwarya G JacobDepartment of Pediatrics, The Ohio State University, Columbus, OH 43210, USA Center for Childhood Cancer, The Research Institute at Nationwide Children's Hospital, 700 Childrens Drive WA5023, Columbus, OH 43205, USA.
Ravi K SinghDepartment of Pediatrics, The Ohio State University, Columbus, OH 43210, USA Center for Childhood Cancer, The Research Institute at Nationwide Children's Hospital, 700 Childrens Drive WA5023, Columbus, OH 43205, USA.
Aixa S Tapia-SantosDepartment of Pediatrics, The Ohio State University, Columbus, OH 43210, USA Center for Childhood Cancer, The Research Institute at Nationwide Children's Hospital, 700 Childrens Drive WA5023, Columbus, OH 43205, USA.
Dawn S ChandlerDepartment of Pediatrics, The Ohio State University, Columbus, OH 43210, USA Center for Childhood Cancer, The Research Institute at Nationwide Children's Hospital, 700 Childrens Drive WA5023, Columbus, OH 43205, USA dawn.chandler@nationwidechildrens.org.
The Ohio State University · USNationwide Children's Hospital · US

Funding

NCI NIH HHS 1R01CA1335710-01
6 · The paper itself

Abstract

Genotoxic stress induces alternative splicing of the oncogene MDM2 generating MDM2-ALT1, an isoform attributed with tumorigenic properties. However, the mechanisms underlying this event remain unclear. Here we explore MDM2 splicing regulation by utilizing a novel minigene that mimics endogenous MDM2 splicing in response to UV and cisplatinum-induced DNA damage. We report that exon 11 is necessary and sufficient for the damage-specific alternative splicing of the MDM2 minigene and that the splicing factor SRSF1 binds exon 11 at evolutionarily conserved sites. Interestingly, mutations disrupting this interaction proved sufficient to abolish the stress-induced alternative splicing of the MDM2 minigene. Furthermore, SRSF1 overexpression promoted exclusion of exon 11, while its siRNA-mediated knockdown prevented the stress-induced alternative splicing of endogenous MDM2. Additionally, we observed elevated SRSF1 levels under stress and in tumors correlating with the expression of MDM2-ALT1. Notably, we demonstrate that MDM2-ALT1 splicing can be blocked by targeting SRSF1 sites on exon 11 using antisense oligonucleotides. These results present conclusive evidence supporting a negative role for SRSF1 in MDM2 alternative splicing. Importantly, we define for the first time, a clear-cut mechanism for the regulation of damage-induced MDM2 splicing and present potential strategies for manipulating MDM2 expression via splicing modulation.

Indexed as

Alternative SplicingDNA DamageExonsHeLa CellsHumansMCF-7 CellsNuclear ProteinsOligodeoxyribonucleotides, AntisenseProto-Oncogene Proteins c-mdm2Regulatory Sequences, Ribonucleic AcidRhabdomyosarcomaRNA-Binding ProteinsSerine-Arginine Splicing FactorsStress, PhysiologicalNuclear ProteinsOligodeoxyribonucleotides, AntisenseProto-Oncogene Proteins c-mdm2Regulatory Sequences, Ribonucleic AcidRNA-Binding ProteinsSerine-Arginine Splicing Factors

Identifiers

PMID25845590
PMCPMC4417157
OpenAlexW1997991041

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.