Evidence map›Paper›PMID 33410915›Full record

ArticleNucleic acids research2021

The MDM2 inducible promoter folds into four-tetrad antiparallel G-quadruplexes targetable to fight malignant liposarcoma.

Sara Lago, Matteo Nadai, Emanuela Ruggiero, Martina Tassinari, Maja Marušič, Beatrice Tosoni, Ilaria Frasson, Filippo M Cernilogar, Valentina Pirota, Filippo Doria and 3 more

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.7field-weighted citation impact, top 15% 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

25 citing papers in PubMed, 39 citations in OpenAlex.

  1. G-Quadruplexes: Structural Diversity and Emerging Roles in Biomolecular Condensation.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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

13 authors at 4 institutions in 3 countries.

Sara LagoDepartment of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy.
Matteo NadaiDepartment of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy.
Emanuela RuggieroDepartment of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy.
Martina TassinariDepartment of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy.
Maja MarušičSlovenian NMR center, National Institute of Chemistry, Hajdrihova, 19, Ljubljana SI-1000, Slovenia.
Beatrice TosoniDepartment of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy.
Ilaria FrassonDepartment of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy.
Filippo M CernilogarDivision of Molecular Biology, Biomedical Center, Faculty of Medicine, LMU Munich, Germany.
Valentina PirotaDepartment of Chemistry, University of Pavia, V. le Taramelli 10, 27100, Pavia, Italy.
Filippo DoriaDepartment of Chemistry, University of Pavia, V. le Taramelli 10, 27100, Pavia, Italy.
Janez PlavecSlovenian NMR center, National Institute of Chemistry, Hajdrihova, 19, Ljubljana SI-1000, Slovenia.
Gunnar SchottaDivision of Molecular Biology, Biomedical Center, Faculty of Medicine, LMU Munich, Germany.
Sara N RichterDepartment of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy.
University of Padua · ITLudwig-Maximilians-Universität München · DENational Institute of Chemistry · SIUniversity of Pavia · IT

Funding

European Research Council 615879
6 · The paper itself

Abstract

Well-differentiated liposarcoma (WDLPS) is a malignant neoplasia hard to diagnose and treat. Its main molecular signature is amplification of the MDM2-containing genomic region. The MDM2 oncogene is the master regulator of p53: its overexpression enhances p53 degradation and inhibits apoptosis, leading to the tumoral phenotype. Here, we show that the MDM2 inducible promoter G-rich region folds into stable G-quadruplexes both in vitro and in vivo and it is specifically recognized by cellular helicases. Cell treatment with G-quadruplex-ligands reduces MDM2 expression and p53 degradation, thus stimulating cancer cell cycle arrest and apoptosis. Structural characterization of the MDM2 G-quadruplex revealed an extraordinarily stable, unique four-tetrad antiparallel dynamic conformation, amenable to selective targeting. These data indicate the feasibility of an out-of-the-box G-quadruplex-targeting approach to defeat WDLPS and all tumours where restoration of wild-type p53 is sought. They also point to G-quadruplex-dependent genomic instability as possible cause of MDM2 expansion and WDLPS tumorigenesis.

Indexed as

G-QuadruplexesMolecular Targeted TherapyApoptosisCell CycleCell Line, TumorComputer SimulationGene Expression Regulation, NeoplasticHumansLigandsLiposarcomaModels, GeneticNeoplasm ProteinsNuclear ProteinsPromoter Regions, GeneticProtein Interaction MappingProteolysisLigandsMDM2 protein, humanNeoplasm ProteinsNuclear ProteinsProto-Oncogene Proteins c-mdm2TP53 protein, humanTumor Suppressor Protein p53

Identifiers

PMID33410915
PMCPMC7826256
OpenAlexW3119268364

What OpenQuestion 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 OpenQuestion graph.