Evidence map›Paper›PMID 41740057›Full record

ArticleJournal of medicinal chemistry2026

Discovery of Two Structurally Distinct Classes of Inhibitors Targeting the Nuclease MUS81 and Enhancing Efficacy of Chemotherapy in Cancer Cells.

Jana Prochazkova, Benoit Carbain, Victoria Marini, Fedor Nikulenkov, Stepan Havel, Naresh Akavaram, Prashant Khirsariya, Alexandra Sisakova, Jakub Cibulka, Michala Boudova and 9 more

Abstract read
In one paragraph

Article in Journal of medicinal chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

19 authors.

Jana ProchazkovaDepartment of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.
Benoit CarbainDepartment of Chemistry, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic.
Victoria MariniDepartment of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.
Fedor NikulenkovDepartment of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.
Stepan HavelDepartment of Chemistry, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic.
Naresh AkavaramDepartment of Chemistry, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic.
Prashant KhirsariyaDepartment of Chemistry, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic.ORCID 0000-0001-8570-1866
Alexandra SisakovaNCBR, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic.
Jakub CibulkaDepartment of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.
Michala BoudovaDepartment of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.
Magdalena ZacpalovaDepartment of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.
Magdalena KalovskaDepartment of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.
Joana RodriguesGIMM - Gulbenkian Institute for Molecular Medicine, 1649-035 Lisbon, Portugal.
Lukas DanielLoschmidt Laboratories, Department of Experimental Biology and RECETOX, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic.ORCID 0000-0003-2502-9224
Jan BrezovskyLoschmidt Laboratories, Department of Experimental Biology and RECETOX, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic.
Petr BartunekInstitute of Molecular Genetics of the Czech Academy of Sciences, 14220 Prague, Czech Republic.
Claus AzzalinGIMM - Gulbenkian Institute for Molecular Medicine, 1649-035 Lisbon, Portugal.
Kamil ParuchDepartment of Chemistry, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic.ORCID 0000-0001-9502-3173
Lumir KrejciDepartment of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.ORCID 0000-0002-4732-1405

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nucleases are promising pharmacological targets due to their essential role in maintaining genomic stability. They are crucial for regulation of cell viability, and their modulation is exploitable in disease prevention and treatment, including cancer. The conserved structure-specific endonuclease MUS81 resolves branched DNA intermediates during replication, repair, and recombination. Aberrant MUS81 activity causes DNA damage, chromosomal abnormalities, and genome instability, contributing to oncogenesis. Thus, pharmacological targeting of MUS81 is an attractive yet underexplored therapeutic strategy. We describe the discovery of two chemically distinct small-molecule classes of MUS81 inhibitors, exemplified by compounds MU262 and MU876. Both compounds effectively inhibit MUS81 in vitro and in cells, sensitizing cancer cells to DNA-damaging agents by impairing DNA repair. These inhibitors can also serve as chemical biology tools for a deeper study of MUS81 function and as leads for drug discovery aimed at therapies exploiting DNA repair vulnerabilities in cancer treatment.

Indexed as

Antineoplastic AgentsDNA-Binding ProteinsEndonucleasesEnzyme InhibitorsCell Line, TumorDNA DamageDNA RepairDrug DiscoveryHumansNeoplasmsStructure-Activity RelationshipAntineoplastic AgentsDNA-Binding ProteinsEndonucleasesEnzyme InhibitorsMUS81 protein, human

Identifiers

PMID41740057
PMCPMC12990037

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Registered trials

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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.