Journal
DIAGNOSTICS
Volume 11, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/diagnostics11112055
Keywords
B-cell non-Hodgkin lymphoma; circulating tumour DNA; liquid biopsy; relapse; droplet digital PCR
Categories
Funding
- National Natural Science Foundation of China [81700160]
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Circulating tumour DNA (ctDNA) shows great potential as a non-invasive biomarker for disease monitoring, especially in identifying patients with haematological malignancies at risk of disease progression. Sequential ctDNA profiling has clinical value in early detection of tumour relapse. Liquid biopsy based on ctDNA serves as a non-invasive complementary modality for detecting early relapse and contributing to more precise management for patients with non-Hodgkin lymphoma.
Growing evidence now suggests that circulating tumour DNA (ctDNA) has great potential as a non-invasive biomarker for disease monitoring, since ctDNA carries tumour-specific modifications. In particular, monitoring ctDNA has important implications for identifying patients with haematological malignancies at clinical risk of disease progression. We hereby describe three patients with B-cell non-Hodgkin lymphoma and investigate the clinical value of sequential ctDNA profiling for the early detection of tumour relapse. Somatic mutations in diagnostic tumour biopsy samples of these three patients were identified by applying high-throughput next-generation sequencing. Droplet digital PCR probes and primers were designed and tested for each hotspot mutation. Serial ctDNA analysis was subsequently conducted among these three patients. We found that the longitudinal monitoring of plasma ctDNA could predict for at least one month in advance compared with flow cytometry, cytology and conventional imaging modalities. Therefore, our results support liquid biopsy based on ctDNA as a non-invasive complementary modality to other detection methods for detecting early relapse and contribute to more precise management for non-Hodgkin lymphoma patients.
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