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

TL Gindina, NN Mamaev, SN Bondarenko, ES Nikolaeva, OA Slesarchuk, AS Borovkova, OV Paina, SV Razumova, AL Alyanskii, LS Zubarovskaya, BV Afanas’ev

R.M. Gorbacheva Scientific Research Institute of Pediatric Hematology and Transplantation; Academician I.P. Pavlov First St. Petersburg State Medical University, 6/8 L’va Tolstogo str., Saint Petersburg, Russian Federation, 197022

For correspondence: Tat’yana Leonidovna Gindina, PhD, 6/8 L’va Tolstogo str., Saint Petersburg, Russian Federation, 197022; Tel.: +7(812)233-12-43; e-mail: cytogenetics.bmt.lab@gmail.com

For citation: Gindina TL, Mamaev NN, Bondarenko SN, et al. 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. Clinical oncohematology. 2016;9(2):148–54 (In Russ).

DOI: 10.21320/2500-2139-2016-9-2-148-154


ABSTRACT

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 (= 0.03; = 0.0006), clinical status at transplantation (= 0.0002; = 0,006), donor type (= 0.0003; = 0.002), the interval from diagnosis of leukemia to allo-HSCT (= 0,008, for OS only), additional cytogenetic abnormalities (= 0.03; = 0.009) and complex karyotype (= 0.004; = 0.0003), respectively. In multivariate analysis, independent predictors of OS were donor type (= 0.01), the interval from diagnosis of leukemia to allo-HSCT (= 0.01), and additional cytogenetic abnormalities in karyotype (= 0.04), as well as donor type (= 0.04) and patient’s age (= 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.


Keywords: AML with t(8;21) translocation, allo-HSCT, cytogenetic abnormalities.

Received: February 6, 2016

Accepted: February 15, 2016

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