Results of Allogeneic Hematopoietic Stem Cell Transplantation in Patients with Acute Myeloid Leukemia with t(8;21)(q22;q22)/RUNX1-RUNX1T1 and Additional Cytogenetic Abnormalities
Aim. To evaluate the impact of additional chromosomal aberrations on outcomes of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in patients with acute myeloid leukemia (AML) with t(8;21)(q22;q22)/RUNX1-RUNX1T1 translocation. Methods. Twenty-five AML patients with t(8;21)(q22;q22)/...
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| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | Russian |
| Published: |
Practical Medicine Publishing House
2016-04-01
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| Series: | Клиническая онкогематология |
| Subjects: | |
| Online Access: | http://bloodjournal.ru/en/results-of-allogeneic-hematopoietic-stem-cell-transplantation-in-patients-with-acute-myeloid-leukemia-with-t-8-21-q22-q22-runx1-runx1t1-and-additional-cytogenetic-abnormalities/ |
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| Summary: | Aim. To evaluate the impact of additional chromosomal aberrations on outcomes of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in patients with acute myeloid leukemia (AML) with t(8;21)(q22;q22)/RUNX1-RUNX1T1 translocation.
Methods. Twenty-five AML patients with t(8;21)(q22;q22)/RUNX1-RUNX1T1 translocation (10 women and 15 men, aged from 2 to 58 years; median 20.2) were examined. Analysis of overall (OS) and event-free survival (EFS) predictors after allo-HSCT in patients with different clinical, transplant and cytogenetic characteristics was performed.
Results. The additional cytogenetic abnormalities were found in 13 (52 %) patients before the transplantation, at that, complex karyotype with three or more chromosomal abnormalities were registered in 9 (69 %) patients. The univariate analysis showed that OS and EFS after allo-HSCT differed in patients with different characteristics such as age (p = 0.03; p = 0.0006), clinical status at transplantation (p = 0.0002; p = 0,006), donor type (p = 0.0003; p = 0.002), the interval from diagnosis of leukemia to allo-HSCT (p = 0,008, for OS only), additional cytogenetic abnormalities (p = 0.03; p = 0.009) and complex karyotype (p = 0.004; p = 0.0003), respectively. In multivariate analysis, independent predictors of OS were donor type (p = 0.01), the interval from diagnosis of leukemia to allo-HSCT (p = 0.01), and additional cytogenetic abnormalities in karyotype (p = 0.04), as well as donor type (p = 0.04) and patient’s age (p = 0.004) for EFS.
Conclusion. AML with t(8;21)(q22;q22)/RUNX1-RUNX1T1 translocation is a heterogeneous disease. The prognosis in patients with the additional cytogenetic abnormalities, especially in those with the complex karyotype, is worse both after the standard chemotherapy (i.e. before allo-HSCT), and after allo-HSCT. |
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| ISSN: | 1997-6933 2500-2139 |