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Prognostic value of minimal residual disease quantification by real-time reverse transcriptase polymerase chain reaction in patients with core binding factor leukemias.
- Source :
-
Journal of clinical oncology : official journal of the American Society of Clinical Oncology [J Clin Oncol] 2003 Dec 01; Vol. 21 (23), pp. 4413-22. - Publication Year :
- 2003
-
Abstract
- Purpose: In patients with acute myeloblastic leukemia with t(8;21) or inv(16) aberrations (core binding factor [CBF] leukemias), minimal residual disease (MRD) can be sensitively detected during and after chemotherapy by use of molecular methods. However, the prognostic impact of qualitative MRD detection is still under debate. In this study, the prognostic value of MRD quantification in patients with CBF leukemias was assessed.<br />Patients and Methods: We quantified MRD at various time points during and after therapy by real-time reverse transcriptase polymerase chain reaction (RT-PCR) for AML1/MTG8 and CBFB/MYH11 in 37 patients with CBF leukemias treated within a multicenter trial.<br />Results: At initial diagnosis, the patients showed a heterogenous fusion gene expression relative to glyceraldehyde 3-phosphate dehydrogenase with a variation of more than two log steps. According to MRD status during/after therapy, two groups of patients were separated. Of the 26 patients who had MRD levels of less than 1% in relation to initial diagnosis at all time points tested after induction chemotherapy, only two experienced relapse after a median follow-up of 19 months. Of the 11 patients who had a sample with an MRD level >/= 1% at least at one time point after induction therapy, 10 experienced relapse, with a median remission duration of 10 months (P <.001). The median interval between the informative MRD sample and clinical relapse in these patients was 3 months.<br />Conclusion: MRD quantification by real-time RT-PCR allows the identification of patients with a high risk of relapse among the CBF leukemias.
- Subjects :
- Adolescent
Adult
Chromosome Inversion
Chromosomes, Human, Pair 16 genetics
Chromosomes, Human, Pair 21 genetics
Chromosomes, Human, Pair 8 genetics
Core Binding Factor Alpha 2 Subunit
DNA Primers chemistry
Female
Glyceraldehyde 3-Phosphate Dehydrogenase (NADP+) genetics
Glyceraldehyde 3-Phosphate Dehydrogenase (NADP+) metabolism
Humans
Leukemia, Myeloid, Acute mortality
Male
Middle Aged
Neoplasm, Residual
Oncogene Proteins, Fusion metabolism
Prognosis
RNA, Messenger genetics
RNA, Messenger metabolism
RNA, Neoplasm analysis
RUNX1 Translocation Partner 1 Protein
Reverse Transcriptase Polymerase Chain Reaction
Sensitivity and Specificity
Survival Rate
Transcription Factors metabolism
Translocation, Genetic
Leukemia, Myeloid, Acute diagnosis
Leukemia, Myeloid, Acute genetics
Oncogene Proteins, Fusion genetics
Transcription Factors genetics
Subjects
Details
- Language :
- English
- ISSN :
- 0732-183X
- Volume :
- 21
- Issue :
- 23
- Database :
- MEDLINE
- Journal :
- Journal of clinical oncology : official journal of the American Society of Clinical Oncology
- Publication Type :
- Academic Journal
- Accession number :
- 14645432
- Full Text :
- https://doi.org/10.1200/JCO.2003.03.166