Development of a Next-generation Sequencing-based Gene Panel Test to Detect Measurable Residual Disease in Acute Myeloid Leukemia
نویسنده : Jin Ju Kim , Jang , Hyeon Ah Lee , , Mi Ri Park , Hye Won Kook , Seung-Tae Lee , Jong Rak Choi , Yoo Hong Min , Saeam Shin , and June-Won Cheong .
تاریخ انتشار : 1402/02/05
Methods: We designed an error-corrected, targeted MRD-NGS panel without using physical molecular barcodes, including 24 genes. Fifty-four bone marrow and peripheral blood
samples from 23 AML patients were sequenced using the panel. The panel design was
validated using reference material, and accuracy was assessed using droplet digital PCR.
Results: Dilution tests showed excellent linearity and a strong correlation between expected and observed clonal frequencies (R>0.99). The test reproducibly detected MRD
in three dilution series samples, with a sensitivity of 0.25% for single-nucleotide variants.
More than half of samples from patients with morphologic remission after one month of
chemotherapy had detectable mutations. NGS-MRD positivity for samples collected after
one month of chemotherapy tended to be associated with poor overall survival and progression-free survival.
Conclusions: Our highly sensitive and accurate NGS-MRD panel can be readily used to
monitor most AML patients in clinical practice, including patients without gene rearrangement. In addition, this NGS-MRD panel may allow the detection of newly emerging clones
during clinical relapse, leading to more reliable prognoses of AML