Evidence map›Paper›PMID 32034120›Full record

ArticleCell death & disease2020

Replication and ribosomal stress induced by targeting pyrimidine synthesis and cellular checkpoints suppress p53-deficient tumors.

Sona Hubackova, Eliska Davidova, Stepana Boukalova, Jaromira Kovarova, Martina Bajzikova, Ana Coelho, Mikkel G Terp, Henrik J Ditzel, Jakub Rohlena, Jiri Neuzil

Open access · goldAbstract read
In one paragraph

Article in Cell death & disease, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 10% 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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 49 citations in OpenAlex.

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  18. TP53 mutations and MDM2 polymorphisms in breast and ovarian cancers: amelioration by drugs and natural compounds.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
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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

10 authors at 3 institutions in 3 countries.

Sona Hubackova *Laboratory of Molecular Therapy, Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 252 50, Czech Republic. sona.hubackova@ibt.cas.cz.
Eliska Davidova *Laboratory of Molecular Therapy, Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 252 50, Czech Republic.
Stepana BoukalovaLaboratory of Molecular Therapy, Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 252 50, Czech Republic.
Jaromira KovarovaLaboratory of Molecular Therapy, Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 252 50, Czech Republic.
Martina BajzikovaLaboratory of Molecular Therapy, Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 252 50, Czech Republic.
Ana CoelhoLaboratory of Molecular Therapy, Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 252 50, Czech Republic.ORCID http://orcid.org/0000-0002-0965-7573
Mikkel G TerpDepartment of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, 5000, Odense, Denmark.
Henrik J DitzelDepartment of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, 5000, Odense, Denmark.ORCID http://orcid.org/0000-0003-3927-5135
Jakub RohlenaLaboratory of Molecular Therapy, Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 252 50, Czech Republic.ORCID http://orcid.org/0000-0001-5427-6502
Jiri NeuzilLaboratory of Molecular Therapy, Institute of Biotechnology, Czech Academy of Sciences, Prague-West, 252 50, Czech Republic. j.neuzil@griffith.edu.au.
Czech Academy of Sciences · CZUniversity of Southern Denmark · DKGriffith University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

p53-mutated tumors often exhibit increased resistance to standard chemotherapy and enhanced metastatic potential. Here we demonstrate that inhibition of dihydroorotate dehydrogenase (DHODH), a key enzyme of the de novo pyrimidine synthesis pathway, effectively decreases proliferation of cancer cells via induction of replication and ribosomal stress in a p53- and checkpoint kinase 1 (Chk1)-dependent manner. Mechanistically, a block in replication and ribosomal biogenesis result in p53 activation paralleled by accumulation of replication forks that activate the ataxia telangiectasia and Rad3-related kinase/Chk1 pathway, both of which lead to cell cycle arrest. Since in the absence of functional p53 the cell cycle arrest fully depends on Chk1, combined DHODH/Chk1 inhibition in p53-dysfunctional cancer cells induces aberrant cell cycle re-entry and erroneous mitosis, resulting in massive cell death. Combined DHODH/Chk1 inhibition effectively suppresses p53-mutated tumors and their metastasis, and therefore presents a promising therapeutic strategy for p53-mutated cancers.

Indexed as

Cell Cycle CheckpointsCell ProliferationAnimalsAntineoplastic Combined Chemotherapy ProtocolsBreast NeoplasmsCheckpoint Kinase 1Dihydroorotate DehydrogenaseFemaleGene Expression Regulation, NeoplasticGenes, erbB-2HCT116 CellsHumansLeflunomideMCF-7 CellsMice, Inbred BALB CMice, Inbred NODCheckpoint Kinase 1CHEK1 protein, humanChek1 protein, mouseDihydroorotate DehydrogenaseLeflunomideLY2603618Oxidoreductases Acting on CH-CH Group DonorsPhenylurea CompoundsProtein Kinase InhibitorsPyrazinesPyrimidinesTP53 protein, humanTrp53 protein, mouseTumor Suppressor Protein p53

Identifiers

PMID32034120
PMCPMC7007433
OpenAlexW3004950633

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.