Evidence map›Paper›PMID 34343258›Full record

ArticleBlood2021

Novel NPM1 exon 5 mutations and gene fusions leading to aberrant cytoplasmic nucleophosmin in AML.

Maria Paola Martelli, Roberta Rossi, Alessandra Venanzi, Manja Meggendorfer, Vincenzo Maria Perriello, Giovanni Martino, Orietta Spinelli, Raffaella Ciurnelli, Emanuela Varasano, Lorenzo Brunetti and 22 more

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
6.4field-weighted citation impact, top 3% 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

32 citing papers in PubMed, 53 citations in OpenAlex.

  1. Two Decades ofCancers · 2026
    Review
  2. Review
  3. Review
  4. Haematologica · 2025
    Article
  5. Article
  6. Cancers · 2025
    Review
  7. Review
  8. Article
  9. Recent advances in AML with mutated NPM1.International journal of hematology · 2024
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

32 authors at 7 institutions in 2 countries.

Maria Paola MartelliHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.ORCID 0000-0001-9139-1729
Roberta RossiHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.
Alessandra VenanziHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.
Manja MeggendorferMunich Leukemia Laboratory, Munich, Germany.
Vincenzo Maria PerrielloHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.
Giovanni MartinoHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.ORCID 0000-0003-3957-6720
Orietta SpinelliHematology, ASST Papa Giovanni XXIII, University of Milan, Bergamo, Italy.ORCID 0000-0003-0374-1536
Raffaella CiurnelliSanta Maria della Misericordia Hospital of Perugia, Perugia, Italy.
Emanuela VarasanoHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.
Lorenzo BrunettiHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.ORCID 0000-0003-2624-8576
Stefano AscaniHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.
Corinne QuadaltiHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.
Valeria CardinaliHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.
Federica MezzasomaHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.ORCID 0000-0003-3158-3408
Ilaria GionfriddoHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.ORCID 0000-0002-1830-5967
Francesca MilanoHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.
Roberta PaciniSanta Maria della Misericordia Hospital of Perugia, Perugia, Italy.
Alessia TabarriniSanta Maria della Misericordia Hospital of Perugia, Perugia, Italy.
Barbara BigernaSanta Maria della Misericordia Hospital of Perugia, Perugia, Italy.
Francesco AlbanoHematology, Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Bari, Italy.ORCID 0000-0001-7926-6052
Giorgina SpecchiaHematology, Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Bari, Italy.
Calogero VetroDivision of Hematology, Azienda Ospedaliero Universitaria Policlinico-San Marco, Catania, Italy; and.ORCID 0000-0003-1922-5157
Francesco Di RaimondoDivision of Hematology, Azienda Ospedaliero Universitaria Policlinico-San Marco, Catania, Italy; and.
Ombretta AnnibaliHematology, Campus Bio-medico, University of Rome, Rome, Italy.ORCID 0000-0002-3095-5313
Giuseppe AvvisatiHematology, Campus Bio-medico, University of Rome, Rome, Italy.
Alessandro RambaldiHematology, ASST Papa Giovanni XXIII, University of Milan, Bergamo, Italy.ORCID 0000-0002-3739-7502
Franca FalzettiHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.
Enrico TiacciHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.
Paolo SportolettiHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.
Torsten HaferlachMunich Leukemia Laboratory, Munich, Germany.
Claudia HaferlachMunich Leukemia Laboratory, Munich, Germany.
Brunangelo FaliniHematology, Centro di Ricerche Emato-Oncologiche, University of Perugia, Perugia, Italy.ORCID 0000-0002-7198-5965
University of Perugia · ITAzienda Ospedaliera di Perugia · ITMunich Leukemia Laboratory (Germany) · DEPoliclinico Universitario di Catania · ITUniversità Campus Bio-Medico · ITUniversity of Bari Aldo Moro · ITUniversity of Milan · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nucleophosmin (NPM1) mutations in acute myeloid leukemia (AML) affect exon 12, but also sporadically affect exons 9 and 11, causing changes at the protein C-terminal end (tryptophan loss, nuclear export signal [NES] motif creation) that lead to aberrant cytoplasmic NPM1 (NPM1c+), detectable by immunohistochemistry. Combining immunohistochemistry and molecular analyses in 929 patients with AML, we found non-exon 12 NPM1 mutations in 5 (1.3%) of 387 NPM1c+ cases. Besides mutations in exons 9 (n = 1) and 11 (n = 1), novel exon 5 mutations were discovered (n = 3). Another exon 5 mutation was identified in an additional 141 patients with AML selected for wild-type NPM1 exon 12. Three NPM1 rearrangements (NPM1/RPP30, NPM1/SETBP1, NPM1/CCDC28A) were detected and characterized among 13 979 AML samples screened by cytogenetic/fluorescence in situ hybridization and RNA sequencing. Functional studies demonstrated that in AML cases, new NPM1 proteins harbored an efficient extra NES, either newly created or already present in the fusion partner, ensuring its cytoplasmic accumulation. Our findings support NPM1 cytoplasmic relocation as critical for leukemogenesis and reinforce the role of immunohistochemistry in predicting AML-associated NPM1 genetic lesions. This study highlights the need to develop new assays for molecular diagnosis and monitoring of NPM1-mutated AML.

Indexed as

MutationAdultExonsFemaleGene FusionGene RearrangementHumansLeukemia, Myeloid, AcuteMaleMiddle AgedNucleophosminNPM1 protein, humanNucleophosmin

Identifiers

PMID34343258
PMCPMC9037756
OpenAlexW3187763958

What OpenQuestion holds

Textmetadata
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.