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Abstract
High-throughput sequencing of the T-cell receptor beta (TRB) and gamma (TRG) loci is increasingly utilized due to its high sensitivity, specificity, and versatility in the diagnosis of various T-cell malignancies. Application of these technologies for tracking disease burden can be valuable in detecting recurrence, determining response to therapy, guiding future management of patients, and establishing endpoints for clinical trials. In this study, the performance of the commercially available LymphoTrack high-throughput sequencing assay was assessed for determining residual disease burden in patients with various T-cell malignancies seen at our institution. A custom bioinformatics pipeline and database was also developed to facilitate MRD analysis and clinical reporting. This assay demonstrated excellent test performance characteristics, achieving a sensitivity of 1 out of 100,000 T-cell equivalents for the DNA inputs evaluated and high concordance with orthogonal testing methods. This assay was further utilized to correlate disease burden in several patients, demonstrating its potential utility for monitoring patients with T-cell malignancies.
View details for DOI 10.1016/j.jmoldx.2023.02.002
View details for PubMedID 36870603