The incidence of atypical patterns of BCR-ABL1 rearrangement and molecular-cytogenetic response to tyrosine kinase inhibitor therapy in newly diagnosed cases with chronic myeloid leukemia (CML)
Blood Research
;
: 152-159, 2018.
Artículo
en Inglés
| WPRIM
| ID: wpr-714928
ABSTRACT
BACKGROUND:
To analyze the frequency of atypical fluorescence in situ hybridization signal patterns and estimate the complete cytogenetic response (CCyR) and major molecular response (MMR) during 12 months of tyrosine kinase inhibitor therapy in patients with newly diagnosed chronic myeloid leukemia.METHODS:
The study included bone marrow and peripheral blood samples from 122 patients with newly diagnosed chronic myeloid leukemia. Detection of the breakpoint cluster region—Abelson fusion gene (BCR-ABL1) was performed using fluorescence in situ hybridization with a dual-color dual-fusion translocation probe, and MMR analysis was performed using the real-time quantitative polymerase chain reaction method.RESULTS:
Variant translocation was determined in 10 samples and a deletion on the derivative chromosome 9 (del/der(9)) was found in 20 samples. The rates of CCyR and MMR were similar between patients with reciprocal translocation, variant translocation, deletion of derivative BCR, or ABL1-BCR fusion gene. The Kaplan-Meier test did not show any significant differences in the rates of CCyR and MMR among those groups of patients.CONCLUSION:
The frequencies of variant translocation and del/der(9) in the present study agree with the results of other studies performed worldwide. No differences were observed in the rates of CCyR and MMR between patients with atypical patterns and reciprocal translocation.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Tirosina
/
Médula Ósea
/
Cromosomas Humanos Par 9
/
Proteínas Tirosina Quinasas
/
Leucemia Mielógena Crónica BCR-ABL Positiva
/
Leucemia Mieloide
/
Reacción en Cadena de la Polimerasa
/
Incidencia
/
Hibridación in Situ
/
Citogenética
Tipo de estudio:
Estudio diagnóstico
/
Estudio de incidencia
/
Estudio pronóstico
Límite:
Humanos
Idioma:
Inglés
Revista:
Blood Research
Año:
2018
Tipo del documento:
Artículo
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