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A comparison of qPCR and ddPCR used for quantification of the JAK2 V617F allele burden in Ph negative MPNs.
- Source :
-
Annals of hematology [Ann Hematol] 2018 Dec; Vol. 97 (12), pp. 2299-2308. Date of Electronic Publication: 2018 Jul 28. - Publication Year :
- 2018
-
Abstract
- Philadelphia-negative myeloproliferative neoplasms (MPNs) are a diverse group of diseases whose common feature is the presence of V617F mutation of the JAK2 gene. In the era of novel therapeutic strategies in MPNs, such as JAK-inhibitor therapy, there is a growing need for establishing high sensitive quantitative methods, which can be useful not only at diagnosis but also for monitoring therapeutic outcomes, such as minimal residual disease (MRD). In this study, we compared the qPCR and ddPCR methods and their clinical utility for diagnosis, prognostication, and treatment monitoring of MPNs with JAK2 V617F mutation in 63 MPN patients of which 6 were subjected to ruxolitinib treatment. We show a high conformance between the two methods (correlation coefficient r = 0.998 (p < 0.0001)). Our experiments revealed high analytical sensitivity for both tests, suggesting that they are capable of detecting the JAK2 V617F mutation at diagnosis of MPN with a limit of detection (LoD) of 0.12% for qPCR and 0.01% for ddPCR. The alterations of JAK2 V617F allele burden in patients treated with ruxolitinib were measured by both methods with equal accuracy. The results suggest an advantage of ddPCR in monitoring MRD because of allele burdens below the LoD of qPCR. Overall, the clinical utility of qPCR and ddPCR is very high, and both methods could be recommended for the routine detection of the V617F mutation at diagnosis, though ddPCR will probably supersede qPCR in the future due to cost-effectiveness.
- Subjects :
- Adult
Aged
Amino Acid Substitution
Female
Hematologic Neoplasms blood
Hematologic Neoplasms drug therapy
Humans
Janus Kinase 2 blood
Male
Middle Aged
Myeloproliferative Disorders blood
Myeloproliferative Disorders drug therapy
Rituximab administration & dosage
Alleles
Hematologic Neoplasms genetics
Janus Kinase 2 genetics
Mutation, Missense
Myeloproliferative Disorders genetics
Philadelphia Chromosome
Real-Time Polymerase Chain Reaction methods
Subjects
Details
- Language :
- English
- ISSN :
- 1432-0584
- Volume :
- 97
- Issue :
- 12
- Database :
- MEDLINE
- Journal :
- Annals of hematology
- Publication Type :
- Academic Journal
- Accession number :
- 30056580
- Full Text :
- https://doi.org/10.1007/s00277-018-3451-1