Evidence map›Paper›PMID 38738521›Full record

ArticleThe journal of pathology. Clinical research2024

Recurrent and novel fusions detected by targeted RNA sequencing as part of the diagnostic workflow of soft tissue and bone tumours.

Rafael Zago Baltazar, Sofie Claerhout, Sara Vander Borght, Lien Spans, Raphael Sciot, Patrick Schöffski, Daphne Hompes, Friedl Sinnaeve, Hazem Wafa, Marleen Renard and 9 more

Abstract read
In one paragraph

Article in The journal of pathology. Clinical research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

2 citing papers in PubMed.

  1. Article
  2. Review
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

19 authors.

Rafael Zago Baltazar *Department of Human Genetics, University Hospitals KU Leuven, Leuven, Belgium.
Sofie Claerhout *Department of Human Genetics, University Hospitals KU Leuven, Leuven, Belgium.ORCID 0000-0003-0857-0211
Sara Vander BorghtDepartment of Human Genetics, University Hospitals KU Leuven, Leuven, Belgium.
Lien SpansDepartment of Human Genetics, University Hospitals KU Leuven, Leuven, Belgium.
Raphael SciotDepartment of Pathology, University Hospitals KU Leuven, Leuven, Belgium.
Patrick SchöffskiDepartment of General Medical Oncology, University Hospitals KU Leuven, Leuven, Belgium.
Daphne HompesDepartment of Surgical Oncology, University Hospitals KU Leuven, Leuven, Belgium.
Friedl SinnaeveDepartment of Orthopaedic Surgery, University Hospitals KU Leuven, Leuven, Belgium.
Hazem WafaDepartment of Orthopaedic Surgery, University Hospitals KU Leuven, Leuven, Belgium.
Marleen RenardDepartment of Paediatric Hemato-Oncology, University Hospitals KU Leuven, Leuven, Belgium.
Mari Fcm van den HoutDepartment of Pathology, Maastricht University Medical Center+, Maastricht, The Netherlands.
Astrid VernemmenDepartment of Pathology, Maastricht University Medical Center+, Maastricht, The Netherlands.
Louis LibbrechtDepartment of Pathology, Cliniques Universitaires Saint-Luc, Brussels, Belgium.
An-Katrien De RooDepartment of Pathology, Cliniques Universitaires Saint-Luc, Brussels, Belgium.
Filomena MazzeoInstitute of Experimental and Clinical Research, UCLouvain, Brussels, Belgium.
Cédric van MarckeInstitute of Experimental and Clinical Research, UCLouvain, Brussels, Belgium.
Karen DeraedtDepartment of Pathology, Ziekenhuis Oost-Limburg, Genk, Belgium.
Claire BourgainDepartment of Pathology, Imelda Ziekenhuis, Bonheiden, Belgium.
Isabelle Vanden BemptDepartment of Human Genetics, University Hospitals KU Leuven, Leuven, Belgium.ORCID 0000-0002-3433-555X

Funding

Universitaire Ziekenhuizen Leuven, KU Leuven
6 · The paper itself

Abstract

The identification of gene fusions has become an integral part of soft tissue and bone tumour diagnosis. We investigated the added value of targeted RNA-based sequencing (targeted RNA-seq, Archer FusionPlex) to our current molecular diagnostic workflow of these tumours, which is based on fluorescence in situ hybridisation (FISH) for the detection of gene fusions using 25 probes. In a series of 131 diagnostic samples targeted RNA-seq identified a gene fusion, BCOR internal tandem duplication or ALK deletion in 47 cases (35.9%). For 74 cases, encompassing 137 FISH analyses, concordance between FISH and targeted RNA-seq was evaluated. A positive or negative FISH result was confirmed by targeted RNA-seq in 27 out of 49 (55.1%) and 81 out of 88 (92.0%) analyses, respectively. While negative concordance was high, targeted RNA-seq identified a canonical gene fusion in seven cases despite a negative FISH result. The 22 discordant FISH-positive analyses showed a lower percentage of rearrangement-positive nuclei (range 15-41%) compared to the concordant FISH-positive analyses (>41% of nuclei in 88.9% of cases). Six FISH analyses (in four cases) were finally considered false positive based on histological and targeted RNA-seq findings. For the EWSR1 FISH probe, we observed a gene-dependent disparity (p = 0.0020), with 8 out of 35 cases showing a discordance between FISH and targeted RNA-seq (22.9%). This study demonstrates an added value of targeted RNA-seq to our current diagnostic workflow of soft tissue and bone tumours in 19 out of 131 cases (14.5%), which we categorised as altered diagnosis (3 cases), added precision (6 cases), or augmented spectrum (10 cases). In the latter subgroup, four novel fusion transcripts were found for which the clinical relevance remains unclear: NAB2::NCOA2, YAP1::NUTM2B, HSPA8::BRAF, and PDE2A::PLAG1. Overall, targeted RNA-seq has proven extremely valuable in the diagnostic workflow of soft tissue and bone tumours.

Indexed as

Bone NeoplasmsIn Situ Hybridization, FluorescenceSoft Tissue NeoplasmsWorkflowAdolescentAdultAgedAged, 80 and overBiomarkers, TumorChildChild, PreschoolFemaleGene FusionHumansMaleMiddle AgedBiomarkers, TumorOncogene Proteins, Fusionbone tumoursFISHRNA‐seqsarcomassoft tissue tumours

Identifiers

PMID38738521
PMCPMC11089496

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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.