Evidence map›Paper›PMID 24799433›Full record

ArticleNucleic acids research2014

Lomofungin and dilomofungin: inhibitors of MBNL1-CUG RNA binding with distinct cellular effects.

Jason W Hoskins, Leslie O Ofori, Catherine Z Chen, Amit Kumar, Krzysztof Sobczak, Masayuki Nakamori, Noel Southall, Samarjit Patnaik, Juan J Marugan, Wei Zheng and 4 more

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

42 citing papers in PubMed, 59 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. 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
  18. Mitigating RNA Toxicity in Myotonic Dystrophy using Small Molecules.International journal of molecular sciences · 2019
    Review
  19. Article
  20. Myotonic Dystrophies: Targeting Therapies for Multisystem Disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2018
    Review
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

14 authors at 4 institutions in 1 country.

Jason W HoskinsDepartment of Neurology, University of Rochester, Rochester, NY 14642, USA.
Leslie O OforiDepartment of Chemistry, University of Rochester, Rochester, NY 14642, USA.
Catherine Z ChenDepartment of Chemistry, Scripps Florida, Jupiter, FL 33458, USA.
Amit KumarDepartment of Dermatology, University of Rochester, Rochester, NY 14642, USA.
Krzysztof SobczakDepartment of Neurology, University of Rochester, Rochester, NY 14642, USA.
Masayuki NakamoriDepartment of Neurology, University of Rochester, Rochester, NY 14642, USA.
Noel SouthallDepartment of Chemistry, Scripps Florida, Jupiter, FL 33458, USA.
Samarjit PatnaikDepartment of Chemistry, Scripps Florida, Jupiter, FL 33458, USA.
Juan J MaruganDepartment of Chemistry, Scripps Florida, Jupiter, FL 33458, USA.
Wei ZhengDepartment of Chemistry, Scripps Florida, Jupiter, FL 33458, USA.
Christopher P AustinDepartment of Chemistry, Scripps Florida, Jupiter, FL 33458, USA.
Matthew D DisneyDepartment of Dermatology, University of Rochester, Rochester, NY 14642, USA.
Benjamin L MillerDivision of Pre-clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD 20892, USA.
Charles A ThorntonDepartment of Neurology, University of Rochester, Rochester, NY 14642, USA Charles_thornton@urmc.rochester.edu.
University of Rochester · USScripps (United States) · USScripps Institution of Oceanography · USNational Center for Advancing Translational Sciences · US

Funding

NIH Chemical Genomics CenterZIBTR000004 · NCATS · NATIONAL CENTER FOR ADVANCING TRANSLATIONAL SCIENCES · PI MCKEW, JOHN · 2012 to 2014
$52.3M
Training and Educational CoreU54NS048843 · NINDS · UNIVERSITY OF ROCHESTER · PI THORNTON, CHARLES A · 2003 to 2017
$21.9M
RNA-mediated Mechanisms in the Myotonic DystrophiesR01AR049077 · NIAMS · UNIVERSITY OF ROCHESTER · PI THORNTON, CHARLES A · 2002 to 2011
$3.0M
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
RNA Targeted Small Molecules: Connecting Binding Kinetics to Sequence SelectivityR01GM100788 · NIGMS · UNIVERSITY OF ROCHESTER · PI MILLER, BENJAMIN L · 2012 to 2015
$1.5M
Preclinical Development of Lead Compounds Targeting Myotonic DystrophyR21NS071023 · NINDS · UNIVERSITY OF ROCHESTER · PI MILLER, BENJAMIN L · 2010 to 2011
$363k
Intramural NIH HHSNIAMS NIH HHS AR049077NIGMS NIH HHS 1R01GM079235NIGMS NIH HHS 1R01GM100788NIGMS NIH HHS R01 GM100788NINDS NIH HHS 5R21NS071023NINDS NIH HHS U54 NS048843NINDS NIH HHS U54NS048843PHS HHS N2058345
6 · The paper itself

Abstract

Myotonic dystrophy type 1 (DM1) is a dominantly inherited neuromuscular disorder resulting from expression of RNA containing an expanded CUG repeat (CUG(exp)). The pathogenic RNA is retained in nuclear foci. Poly-(CUG) binding proteins in the Muscleblind-like (MBNL) family are sequestered in foci, causing misregulated alternative splicing of specific pre-mRNAs. Inhibitors of MBNL1-CUG(exp) binding have been shown to restore splicing regulation and correct phenotypes in DM1 models. We therefore conducted a high-throughput screen to identify novel inhibitors of MBNL1-(CUG)12 binding. The most active compound was lomofungin, a natural antimicrobial agent. We found that lomofungin undergoes spontaneous dimerization in DMSO, producing dilomofungin, whose inhibition of MBNL1-(CUG)12 binding was 17-fold more potent than lomofungin itself. However, while dilomofungin displayed the desired binding characteristics in vitro, when applied to cells it produced a large increase of CUG(exp) RNA in nuclear foci, owing to reduced turnover of the CUG(exp) transcript. By comparison, the monomer did not induce CUG(exp) accumulation in cells and was more effective at rescuing a CUG(exp)-induced splicing defect. These results support the feasibility of high-throughput screens to identify compounds targeting toxic RNA, but also demonstrate that ligands for repetitive sequences may have unexpected effects on RNA decay.

Indexed as

3' Untranslated RegionsAlternative SplicingDimerizationHumansPhenazinesRepetitive Sequences, Nucleic AcidRNARNA-Binding ProteinsRNA Stability3' Untranslated RegionsdilomofunginlomofunginMBNL1 protein, humanPhenazinesRNARNA-Binding Proteins

Identifiers

PMID24799433
PMCPMC4041448
OpenAlexW2076133587

What Socratic holds

Textmetadata
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 Socratic graph.