Liquid biopsy-based circulating tumour (ct)DNA analysis of a spectrum of myeloid and lymphoid malignancies yields clinically actionable results

© 2024 John Wiley & Sons Ltd..

AIMS: Liquid biopsy (LBx)-based next-generation sequencing (NGS) of circulating tumour DNA (ctDNA) can facilitate molecular profiling of haematopoietic neoplasms (HNs), particularly when tissue-based NGS is infeasible.

METHODS AND RESULTS: We studied HN LBx samples tested with FoundationOne Liquid CDx, FoundationOne Liquid, or FoundationACT between July 2016 and March 2022. We identified 271 samples: 89 non-Hodgkin lymphoma (NHL), 43 plasma-cell neoplasm (PCN), 41 histiocytoses, 27 myelodysplastic syndrome (MDS), 25 diffuse large B-cell lymphoma (DLBCL), 22 myeloproliferative neoplasm (MPN), 14 Hodgkin lymphoma (HL), and 10 acute myeloid leukaemia (AML). Among 73.4% with detectable pathogenic alterations, median maximum somatic allele frequency (MSAF) was 16.6%, with AML (36.2%), MDS (19.7%), and MPN (44.5%) having higher MSAFs than DLBCL (3.9%), NHL (8.4%), HL (1.5%), PCN (2.8%), and histiocytoses (1.8%) (P = 0.001). LBx detected characteristic alterations across HNs, including in TP53, KRAS, MYD88, and BTK in NHLs; TP53, KRAS, NRAS, and BRAF in PCNs; IGH in DLBCL; TP53, ATM, and PDCD1LG2 in HL; BRAF and MAP2K1 in histiocytoses; TP53, SF3B1, DNMT3A, TET2, and ASXL1 in MDS; JAK2 in MPNs; and FLT3, IDH2, and NPM1 in AML. Among 24 samples, the positive percent agreement by LBx was 75.7% for variants present in paired buffy coat, marrow, or tissues. Also, 75.0% of pairs exhibited alterations only present on LBx. These were predominantly subclonal (clonal fraction of 3.8%), reflecting the analytical sensitivity of LBx.

CONCLUSION: These data demonstrate that LBx can detect relevant genomic alterations across HNs, including at low clonal fractions, suggesting a potential clinical utility for identifying residual or emerging therapy-resistant clones that may be undetectable in site-specific tissue biopsies.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:84

Enthalten in:

Histopathology - 84(2024), 7 vom: 17. Apr., Seite 1224-1237

Sprache:

Englisch

Beteiligte Personen:

Mata, Douglas A [VerfasserIn]
Lee, Jessica K [VerfasserIn]
Shanmugam, Vignesh [VerfasserIn]
Marcus, Chelsea B [VerfasserIn]
Schrock, Alexa B [VerfasserIn]
Williams, Erik A [VerfasserIn]
Ritterhouse, Lauren L [VerfasserIn]
Hickman, Richard A [VerfasserIn]
Janovitz, Tyler [VerfasserIn]
Patel, Nimesh R [VerfasserIn]
Kroger, Benjamin R [VerfasserIn]
Ross, Jeffrey S [VerfasserIn]
Mirza, Kamran M [VerfasserIn]
Oxnard, Geoffrey R [VerfasserIn]
Vergilio, Jo-Anne [VerfasserIn]
Elvin, Julia A [VerfasserIn]
Benhamida, Jamal K [VerfasserIn]
Decker, Brennan [VerfasserIn]
Xu, Mina L [VerfasserIn]

Links:

Volltext

Themen:

117896-08-9
Biomarkers, Tumor
Circulating Tumor DNA
Haematopathology
Journal Article
Liquid biopsy
Next‐generation sequencing
Nucleophosmin

Anmerkungen:

Date Completed 24.04.2024

Date Revised 24.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1111/his.15168

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369125126