2024
Integrative NGS testing reveals clonal dynamics of adverse genomic defects contributing to a natural progression in treatment-naïve CLL patients
NAVRKALOVÁ, Veronika; Karla PLEVOVÁ; Lenka RADOVÁ; Jakub Paweł PORC; Karol PÁL et al.Základní údaje
Originální název
Integrative NGS testing reveals clonal dynamics of adverse genomic defects contributing to a natural progression in treatment-naïve CLL patients
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Vydání
British journal of haematology, Hoboken, Wiley-Blackwell, 2024, 0007-1048
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30205 Hematology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.800
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14740/24:00135498
Organizační jednotka
Středoevropský technologický institut
UT WoS
EID Scopus
Klíčová slova anglicky
chronic lymphocytic leukaemia; clonal evolution; genomic aberration; integrative NGS testing; prognosis
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 3. 1. 2025 14:49, Mgr. Eva Dubská
Anotace
V originále
Large-scale next-generation sequencing (NGS) studies revealed extensive genetic heterogeneity, driving a highly variable clinical course of chronic lymphocytic leukaemia (CLL). The evolution of subclonal populations contributes to diverse therapy responses and disease refractoriness. Besides, the dynamics and impact of subpopulations before therapy initiation are not well understood. We examined changes in genomic defects in serial samples of 100 untreated CLL patients, spanning from indolent to aggressive disease. A comprehensive NGS panel LYNX, which provides targeted mutational analysis and genome-wide chromosomal defect assessment, was employed. We observed dynamic changes in the composition and/or proportion of genomic aberrations in most patients (62%). Clonal evolution of gene variants prevailed over the chromosomal alterations. Unsupervised clustering based on aberration dynamics revealed four groups of patients with different clinical behaviour. An adverse cluster was associated with fast progression and early therapy need, characterized by the expansion of TP53 defects, ATM mutations, and 18p- alongside dynamic SF3B1 mutations. Our results show that clonal evolution is active even without therapy pressure and that repeated genetic testing can be clinically relevant during long-term patient monitoring. Moreover, integrative NGS testing contributes to the consolidated evaluation of results and accurate assessment of individual patient prognosis.
Návaznosti
| LX22NPO5102, projekt VaV |
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| MUNI/A/1224/2022, interní kód MU |
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| NU20-08-00314, projekt VaV |
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| NV19-03-00091, projekt VaV |
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| 90132, velká výzkumná infrastruktura |
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| 90133, velká výzkumná infrastruktura |
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