Evidence map›Paper›PMID 22252896›Full record

ArticleACS chemical biology2012

Chemical correction of pre-mRNA splicing defects associated with sequestration of muscleblind-like 1 protein by expanded r(CAG)-containing transcripts.

Amit Kumar, Raman Parkesh, Lukasz J Sznajder, Jessica L Childs-Disney, Krzysztof Sobczak, Matthew D Disney

Abstract read
In one paragraph

Article in ACS chemical biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

53 citing papers in PubMed, 73 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Targeting RNA structures with small molecules.Nature reviews. Drug discovery · 2022
    Review
  6. Article
  7. Article
  8. Review
  9. CAG RNAs induce DNA damage and apoptosis by silencingProceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  10. Macrocyclization of a Ligand Targeting a Toxic RNA Dramatically Improves Potency.Chembiochem : a European journal of chemical biology · 2020
    Article
  11. Article
  12. Small molecule targeting of RNA structures in neurological disorders.Annals of the New York Academy of Sciences · 2020
    Review
  13. Curcumin Regulates the r(CGG)Frontiers in neuroscience · 2020
    Article
  14. Review
  15. Article
  16. A CTG repeat-selective chemical screen identifies microtubule inhibitors as selective modulators of toxic CUG RNA levels.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  17. Review
  18. Article
  19. Article
  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

6 authors at 2 institutions in 2 countries.

Amit KumarDepartment of Chemistry, The Scripps Research Institute , Scripps Florida, 130 Scripps Way 3A1, Jupiter, Florida 33458, United States.
Raman Parkesh
Lukasz J Sznajder
Jessica L Childs-Disney
Krzysztof Sobczak
Matthew D Disney
Scripps Research Institute · USAdam Mickiewicz University in Poznań · PL

Funding

Identifying and Studying RNA Loop-Small Molecule InteractionsR01GM079235 · NIGMS · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI DISNEY, MATTHEW D · 2008 to 2012
$2.6M
NIGMS NIH HHS 1R01GM079235-01A2NIGMS NIH HHS 3R01GM079235-02S1NIGMS NIH HHS R01 GM079235
6 · The paper itself

Abstract

Recently, it was reported that expanded r(CAG) triplet repeats (r(CAG)(exp)) associated with untreatable neurological diseases cause pre-mRNA mis-splicing likely due to sequestration of muscleblind-like 1 (MBNL1) splicing factor. Bioactive small molecules that bind the 5'CAG/3'GAC motif found in r(CAG)(exp) hairpin structure were identified by using RNA binding studies and virtual screening/chemical similarity searching. Specifically, a benzylguanidine-containing small molecule was found to improve pre-mRNA alternative splicing of MBNL1-sensitive exons in cells expressing the toxic r(CAG)(exp). The compound was identified by first studying the binding of RNA 1 × 1 nucleotide internal loops to small molecules known to have affinity for nucleic acids. Those studies identified 4',6-diamidino-2-phenylindole (DAPI) as a specific binder to RNAs with the 5'CAG/3'GAC motif. DAPI was then used as a query molecule in a shape- and chemistry alignment-based virtual screen to identify compounds with improved properties, which identified 4-guanidinophenyl 4-guanidinobenzoate, a small molecule that improves pre-mRNA splicing defects associated with the r(CAG)(exp)-MBNL1 complex. This compound may facilitate the development of therapeutics to treat diseases caused by r(CAG)(exp) and could serve as a useful chemical tool to dissect the mechanisms of r(CAG)(exp) toxicity. The approach used in these studies, defining the small RNA motifs that bind small molecules with known affinity for nucleic acids and then using virtual screening to optimize them for bioactivity, may be generally applicable for designing small molecules that target other RNAs in the human genomic sequence.

Indexed as

BenzoatesGuanidinesHumansIn Situ Hybridization, FluorescenceLigandsRNA-Binding ProteinsRNA, MessengerRNA SplicingSmall Molecule LibrariesStructure-Activity RelationshipTranscription, GeneticTrinucleotide RepeatsTumor Cells, Cultured4-guanidinophenyl 4-guanidinobenzoateBenzoatesGuanidinesLigandsMBNL1 protein, humanRNA-Binding ProteinsRNA, MessengerSmall Molecule Libraries

Identifiers

PMID22252896
PMCPMC3306454
OpenAlexW2072383755

What OpenQuestion holds

Textmetadata
LicenceTDM
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.