Background: FLT3-ITD mutations occur in 45-50% of cytogenetically normal AML patients. Conventional fragment analysis using capillary electrophoresis is routinely used to quantitate FLT3-ITD mutations. Fragment analysis however has limited sensitivity.
Methods And Results: Here, FLT3-ITD was quantified in AML patients using an in-house developed ultra-sensitive droplet digital polymerase chain reaction assay (ddPCR). The allelic ratio of FLT3-ITD was also absolutely measured by both Fragment analysis and ddPCR. The sensitivity of ddPCR in quantitation of FLT3-ITD mutation was superior to Fragment analysis.
Conclusion: This study demonstrates the feasibility of using the described in-house ddPCR method to quantify the FLT3-ITD mutation and measure FLT3-ITD AR in AML patients.
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