Monosomy 7 and deletion 7q in children and adolescents with acute myeloid leukemia: an international retrospective study.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Hasle Henrik, Alonzo Todd A, Auvrignon Anne, Behar Catherine, Chang Myron, Creutzig Ursula, Fischer Alexandra, Forestier Erik, Fynn Alcira, Haas Oskar A, Harbott Jochen, Harrison Christine J, Heerema Nyla A, van den Heuvel-Eibrink Marry M, Kaspers Gertjan J L, Locatelli Franco, Noellke Peter, Polychronopoulou Sophia, Ravindranath Yaddanapudi, Razzouk Bassem, Reinhardt Dirk, Savva Natalia N, Stark Batia, Suciu Stefan, Tsukimoto Ichiro, Webb David K, Wojcik Dorora, Woods William G, Zimmermann Martin, Niemeyer Charlotte M, Raimondi Susana C
Аннотация
Monosomy 7 (-7) and deletion 7q \del(7q)] are rare in childhood acute myeloid leukemia (AML). We retrospectively collected data on 258 children with AML or refractory anemia with excess blasts in transformation (RAEB-T) and -7 or del(7q) with or without other cytogenetic aberrations \+/- other]. Karyotypes included -7 (n = 90), -7 other (n = 82), del(7q) (n = 21), and del(7q) other (n = 65). Complete remission (CR) was achieved in fewer patients with -7 +/- other compared with del(7q) +/- other (61% versus 89%, P < .001). Overall, the 5-year survival rate was 39% (SE, 3%). Survival was superior in del(7q) +/- other compared with -7 +/- other (51% versus 30%, P < .01). Cytogenetic aberrations considered favorable in AML \t(8;21)(q22;q22), inv(16)(p13q22), t(15;17)(q22;q21), t(9;11)(p22;q23)] (n = 24) were strongly associated with del(7q) and a higher 5-year survival rate compared with del(7q) without favorable cytogenetics (75% versus 46%, P = .03). Patients with -7 and inv(3),-5/del(5q), or + 21 had a 5-year survival rate of 5%. Stem cell transplantation analyzed as a time-dependent variable had no impact on overall survival. However, patients not achieving CR had a 31% survival rate after stem cell transplantation. Childhood AML with chromosome 7 aberrations represents a heterogeneous group of disorders with additional cytogenetic aberrations having a major prognostic impact which should be reflected in future risk-group stratification.