Evidence map›Paper›PMID 33147938›Full record

ArticleHaematologica2021

Multiclonal complexity of pediatric acute lymphoblastic leukemia and the prognostic relevance of subclonal mutations

Željko Antić, Jiangyan Yu, Simon V Van Reijmersdal, Anke Van Dijk, Linde Dekker, Wouter H Segerink, Edwin Sonneveld, Marta Fiocco, Rob Pieters, Peter M Hoogerbrugge and 4 more

Open access · goldAbstract read
In one paragraph

Article in Haematologica, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.5field-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

15 citing papers in PubMed, 23 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

14 authors at 6 institutions in 3 countries.

Željko AntićPrincess Maxima Center for Pediatric Oncology, Utrecht.
Jiangyan YuPrincess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands; Department of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen.
Simon V Van ReijmersdalPrincess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands; Department of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen.
Anke Van DijkDepartment of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen.
Linde DekkerPrincess Maxima Center for Pediatric Oncology, Utrecht.
Wouter H SegerinkPrincess Maxima Center for Pediatric Oncology, Utrecht.
Edwin SonneveldPrincess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands; Dutch Childhood Oncology Group, Utrecht.
Marta FioccoPrincess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands; Medical Statistics, Department of Biomedical Data Science, Leiden University Medical Center, Leiden, The Netherlands; Mathematical Institute, Leiden University.
Rob PietersPrincess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands; Dutch Childhood Oncology Group, Utrecht.
Peter M HoogerbruggePrincess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands; Dutch Childhood Oncology Group, Utrecht.
Frank N Van LeeuwenPrincess Maxima Center for Pediatric Oncology, Utrecht.
Ad Geurts Van KesselDepartment of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen.
Esme WaandersPrincess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands; Department of Genetics, University Medical Center Utrecht, Utrecht.
Roland P KuiperPrincess Maxima Center for Pediatric Oncology, Utrecht. r.kuiper@prinsesmaximacentrum.nl.
Princess Máxima Center · NLUniversity Medical Center · USLeiden University Medical Center · NLRadboud University Medical Center · NLRadboud University Nijmegen · NLUniversity Medical Center Utrecht · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Genomic studies of pediatric acute lymphoblastic leukemia (ALL) have shown remarkable heterogeneity in initial diagnosis, with multiple (sub)clones harboring lesions in relapse-associated genes. However, the clinical relevance of these subclonal alterations remains unclear. We assessed the clinical relevance and prognostic value of subclonal alterations in the relapse-associated genes IKZF1, CREBBP, KRAS, NRAS, PTPN11, TP53, NT5C2, and WHSC1 in 503 ALL cases. Using Molecular Inversion Probe sequencing and breakpoint-spanning PCR we reliably detected alterations below 1% allele frequency. We identified 660 genomic alterations in 285 diagnosis samples of which 495 (75%) were subclonal. RAS pathway mutations were common, particularly in minor subclones, and comparisons between RAS hotspot mutations revealed differences in their capacity to drive clonal expansion in ALL. We did not find an association of subclonal alterations with unfavorable outcome. Particularly for IKZF1, an established prognostic marker in ALL, all clonal but none of the subclonal alterations were preserved at relapse. We conclude that, for the genes tested, there is no basis to consider subclonal alterations detected at diagnosis for risk group stratification of ALL treatment.

Indexed as

Precursor Cell Lymphoblastic Leukemia-LymphomaChildClone CellsGenomicsHumansMutationPrognosis

Identifiers

PMID33147938
PMCPMC8634184
OpenAlexW3095392273

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.