Abstract:
:In this study, we compared immunoglobulin heavy-chain-gene-based minimal residual disease (MRD) detection by real-time quantitative PCR (RQ-PCR) and next-generation sequencing (NGS) to assess whether NGS could overcome some limitations of RQ-PCR and further increase sensitivity, specificity, accuracy and reproducibility. In total, 378 samples from 55 patients with acute lymphoblastic leukemia (ALL), mantle cell lymphoma (MCL) or multiple myeloma (MM) were investigated for clonotype identification, clonotype identity and comparability of MRD results. Forty-five clonotypes were identified by RQ-PCR and 49 by NGS. Clonotypes identified by both tools were identical or >97% homologous in 96% of cases. Both tools were able to routinely reach a sensitivity level of 1 × E-05. A good correlation of MRD results was observed (R=0.791, P<0.001), with excellent concordance in 79.6% of cases. Few discordant cases were observed across all disease subtypes. NGS showed at least the same level of sensitivity as allele-specific oligonucleotides-PCR, without the need for patient-specific reagents. We conclude that NGS is an effective tool for MRD monitoring in ALL, MCL and MM. Prospective comparative analysis of unselected cases is required to validate the clinical impact of NGS-based MRD assessment.
journal_name
Leukemiajournal_title
Leukemiaauthors
Ladetto M,Brüggemann M,Monitillo L,Ferrero S,Pepin F,Drandi D,Barbero D,Palumbo A,Passera R,Boccadoro M,Ritgen M,Gökbuget N,Zheng J,Carlton V,Trautmann H,Faham M,Pott Cdoi
10.1038/leu.2013.375subject
Has Abstractpub_date
2014-06-01 00:00:00pages
1299-307issue
6eissn
0887-6924issn
1476-5551pii
leu2013375journal_volume
28pub_type
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