Evidence map›Paper›PMID 35030630›Full record

ArticleBlood advances2022

Single-cell analysis reveals selection of TP53-mutated clones after MDM2 inhibition.

Nabih Maslah, Emmanuelle Verger, Stéphane Giraudier, Mathias Chea, Ronald Hoffman, John Mascarenhas, Bruno Cassinat, Jean-Jacques Kiladjian

Open access · goldAbstract read
In one paragraph

Article in Blood advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.7field-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

19 citing papers in PubMed, 20 citations in OpenAlex.

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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

8 authors at 2 institutions in 2 countries.

Nabih MaslahAssistance Publique - Hôpitaux de Paris (AP-HP), Hopital Saint-Louis, laboratoire de Biologie Cellulaire, Paris, France.ORCID 0000-0002-5553-462X
Emmanuelle VergerAssistance Publique - Hôpitaux de Paris (AP-HP), Hopital Saint-Louis, laboratoire de Biologie Cellulaire, Paris, France.ORCID 0000-0002-2773-2784
Stéphane GiraudierAssistance Publique - Hôpitaux de Paris (AP-HP), Hopital Saint-Louis, laboratoire de Biologie Cellulaire, Paris, France.
Mathias CheaUniversité de Paris, U1131 INSERM, Institut de Recherche Saint-Louis (IRSL), Paris, France.
Ronald HoffmanTisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY; and.
John MascarenhasTisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY; and.ORCID 0000-0002-8400-0483
Bruno CassinatAssistance Publique - Hôpitaux de Paris (AP-HP), Hopital Saint-Louis, laboratoire de Biologie Cellulaire, Paris, France.ORCID 0000-0002-6514-3905
Jean-Jacques KiladjianUniversité de Paris, U1131 INSERM, Institut de Recherche Saint-Louis (IRSL), Paris, France.ORCID 0000-0002-8121-438X
University of London Institute in Paris · FRIcahn School of Medicine at Mount Sinai · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mechanisms of transformation of chronic myeloproliferative neoplasms (MPN) to leukemia are largely unknown, but TP53 mutations acquisition is considered a key event in this process. p53 is a main tumor suppressor, but mutations in this protein per se do not confer a proliferative advantage to the cells, and a selection process is needed for the expansion of mutant clones. MDM2 inhibitors may rescue normal p53 from degradation and have been evaluated in a variety of cancers with promising results. However, the impact of these drugs on TP53-mutated cells is underexplored. We report herein evidence of a direct effect of MDM2 inhibition on the selection of MPN patients' cells harboring TP53 mutations. To decipher whether these mutations can arise in a specific molecular context, we used a DNA single-cell approach to determine the clonal architecture of TP53-mutated cells. We observed that TP53 mutations are late events in MPN, mainly occurring in the driver clone, whereas clonal evolution frequently consists of sequential branching instead of linear consecutive acquisition of mutations in the same clone. At the single-cell level, the presence of additional mutations does not influence the selection of TP53 mutant cells by MDM2 inhibitor treatment. Also, we describe an in vitro test allowing to predict the emergence of TP53 mutated clones. Altogether, this is the first demonstration that a drug treatment can directly favor the emergence of TP53-mutated subclones in MPN.

Indexed as

Antineoplastic AgentsMyeloproliferative DisordersClone CellsHumansMutationProto-Oncogene Proteins c-mdm2Single-Cell AnalysisTumor Suppressor Protein p53Antineoplastic AgentsMDM2 protein, humanProto-Oncogene Proteins c-mdm2TP53 protein, humanTumor Suppressor Protein p53

Identifiers

PMID35030630
PMCPMC9092407
OpenAlexW4205476289

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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.