Abstract
Quantification of minimal residual disease (MRD) based on clonotypic immunoglobulin/T-cell receptor (Ig/TCR) gene rearrangements is widely used as an independent prognostic parameter in childhood acute lymphoblastic leukemia (ALL). In this study we compared MRD by quantification of Ig/TCR targets and genomic ETV6-RUNX1 specific sequences. In ten of twelve patients with t(12;21)+ ALL we observed concordance with rapid blast reduction in nine, and high-level persistence in one case. The two remaining patients showed low-level persistence of the genomic breakpoint specific sequence. These patients have remained in complete remission for 38 and 41 months, so far, indicating that a small ETV6-RUNX1-positive clone is not detrimental to the short-term prognosis of affected children.
| Original language | English |
|---|---|
| Journal | Haematologica |
| Volume | 91 |
| Issue number | 5 |
| Pages (from-to) | 683-686 |
| Number of pages | 4 |
| ISSN | 0390-6078 |
| Publication status | Published - 05.2006 |
Research Areas and Centers
- Academic Focus: Center for Brain, Behavior and Metabolism (CBBM)