FLT3 (CD135) and Interleukin-2 receptor alpha-chain (CD25) expression in acute myeloid leukemia: improving the correspondence to FLT3 - internal tandem duplication mutation

2016 ◽  
Vol 38 (4) ◽  
pp. e69-e72 ◽  
Author(s):  
A. A. Abd El-Ghaffar ◽  
R. A. El-Gamal ◽  
N. N. Mostafa ◽  
N. M. Abou Shady
Keyword(s):  
Acute Myeloid Leukemia ◽  
Myeloid Leukemia ◽  
Tandem Duplication ◽  
Interleukin 2 ◽  
Internal Tandem Duplication ◽  
Receptor Alpha ◽  
Cd25 Expression ◽  
Flt3 Internal Tandem Duplication ◽  
Receptor Alpha Chain ◽  
Acute Myeloid

FLT3 Internal Tandem Duplication in Acute Myeloid Leukemia with Normal Karyotype

2007 ◽  
Vol 42 (3) ◽  
pp. 250 ◽  
Author(s):  
Sang-Ho Kim ◽  
Yeo-Kyeoung Kim ◽  
Il-Kwon Lee ◽  
Deog-Yeon Jo ◽  
Jong-Ho Won ◽  
...  
Keyword(s):  
Acute Myeloid Leukemia ◽  
Myeloid Leukemia ◽  
Tandem Duplication ◽  
Normal Karyotype ◽  
Internal Tandem Duplication ◽  
Flt3 Internal Tandem Duplication ◽  
Acute Myeloid

scholarly journals Idarubicin Dose Escalation During Consolidation Therapy for Adult Acute Myeloid Leukemia

2017 ◽  
Vol 35 (15) ◽  
pp. 1678-1685 ◽  
Author(s):  
Kenneth F. Bradstock ◽  
Emma Link ◽  
Juliana Di Iulio ◽  
Jeff Szer ◽  
Paula Marlton ◽  
...  
Keyword(s):  
Acute Myeloid Leukemia ◽  
Induction Therapy ◽  
Myeloid Leukemia ◽  
Tandem Duplication ◽  
Gene Mutations ◽  
Severe Neutropenia ◽  
Consolidation Therapy ◽  
Internal Tandem Duplication ◽  
Flt3 Internal Tandem Duplication ◽  
Acute Myeloid

Purpose Higher doses of the anthracycline daunorubicin during induction therapy for acute myeloid leukemia (AML) have been shown to improve remission rates and survival. We hypothesized that improvements in outcomes in adult AML may be further achieved by increased anthracycline dose during consolidation therapy. Patients and Methods Patients with AML in complete remission after induction therapy were randomly assigned to receive two cycles of consolidation therapy with cytarabine 100 mg/m2 daily for 5 days, etoposide 75 mg/m2 daily for 5 days, and idarubicin 9 mg/m2 daily for either 2 or 3 days (standard and intensive arms, respectively). The primary end point was leukemia-free survival (LFS). Results Two hundred ninety-three patients 16 to 60 years of age, excluding those with core binding factor AML and acute promyelocytic leukemia, were randomly assigned to treatment groups (146 to the standard arm and 147 to the intensive arm). Both groups were balanced for age, karyotypic risk, and FLT3–internal tandem duplication and NPM1 gene mutations. One hundred twenty patients in the standard arm (82%) and 95 patients in the intensive arm (65%) completed planned consolidation ( P < .001). Durations of severe neutropenia and thrombocytopenia were prolonged in the intensive arm, but there were no differences in serious nonhematological toxicities. With a median follow-up of 5.3 years (range, 0.6 to 9.9 years), there was a statistically significant improvement in LFS in the intensive arm compared with the standard arm (3-year LFS, 47% [95% CI, 40% to 56%] v 35% [95% CI, 28% to 44%]; P = .045). At 5 years, the overall survival rate was 57% in the intensive arm and 47% in the standard arm ( P = .092). There was no evidence of selective benefit of intensive consolidation within the cytogenetic or FLT3–internal tandem duplication and NPM1 gene mutation subgroups. Conclusion An increased cumulative dose of idarubicin during consolidation therapy for adult AML resulted in improved LFS, without increased nonhematologic toxicity.

Flt3 Internal Tandem Duplication and P-Glycoprotein Functionality in 171 Patients with Acute Myeloid Leukemia

2006 ◽  
Vol 12 (23) ◽  
pp. 7018-7024 ◽  
Author(s):  
Christophe Marzac ◽  
I. Teyssandier ◽  
Ors'Anton Calendini ◽  
Jean-Yves Perrot ◽  
Anne-Marie Faussat ◽  
...  
Keyword(s):  
Acute Myeloid Leukemia ◽  
Myeloid Leukemia ◽  
Tandem Duplication ◽  
Internal Tandem Duplication ◽  
P Glycoprotein ◽  
Flt3 Internal Tandem Duplication ◽  
Acute Myeloid

BAALC Expression and FLT3 Internal Tandem Duplication Mutations in Acute Myeloid Leukemia Patients With Normal Cytogenetics: Prognostic Implications

2006 ◽  
Vol 24 (5) ◽  
pp. 790-797 ◽  
Author(s):  
Claudia D. Baldus ◽  
Christian Thiede ◽  
Silke Soucek ◽  
Clara D. Bloomfield ◽  
Eckhard Thiel ◽  
...  
Keyword(s):  
Acute Myeloid Leukemia ◽  
Prognostic Factors ◽  
Myeloid Leukemia ◽  
Tandem Duplication ◽  
Multivariable Analysis ◽  
Internal Tandem Duplication ◽  
Normal Cytogenetics ◽  
The Impact ◽  
Flt3 Internal Tandem Duplication ◽  
Acute Myeloid

Purpose Evaluate the impact of BAALC (brain and acute leukemia, cytoplasmic), a gene whose expression has been associated with adverse outcome in acute myeloid leukemia (AML) with normal cytogenetics, and FLT3 internal tandem duplication (ITD) mutations as independent prognostic factors in a larger study. Patients and Methods BAALC expression was determined by real-time reverse transcriptase polymerase chain reaction in pretreatment blood samples of 307 adults ≤ 60 years of age with AML with normal cytogenetics. Patients were dichotomized at BAALC's median expression into low and high expressers. The FLT3 ITD mutant:wild-type ratio was determined by fragment analysis. Results Compared with low-BAALC patients, high-BAALC patients had a higher rate of primary resistant leukemia (16% v 6%; P = .006). High BAALC expression was associated with a higher cumulative incidence of relapse (CIR; P = .018) and an inferior overall survival (OS; 3-year OS, 36% v 54%; P = .001). On multivariable analysis, high BAALC was independently predictive of resistant disease (P = .019), and high BAALC as well as a high FLT3 mutant:wild-type ratio were confirmed as the only factors predicting a high CIR (BAALC, P = .03; FLT3, P = .01) and inferior OS (BAALC, P = .001; FLT3, P = .012). Conclusion This study strengthens BAALC expression as one of the most important prognostic factors in AML patients with normal cytogenetics. BAALC expression and FLT3 mutation status should assist in tailoring induction and postremission therapies.

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