کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8433502 | 1546539 | 2018 | 33 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
ETV6/RUNX1-positive childhood acute lymphoblastic leukemia (ALL): The spectrum of clonal heterogeneity and its impact on prognosis
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کلمات کلیدی
Dana-Farber Cancer InstituteDFCIRFSCoGMRDEFsEvent-free survival - بقاء بدون وقفهoverall survival - بقای کلMinimal residual disease - حداقل بیماری باقی ماندهintermediate risk - خطر متوسطHigh risk - ریسک بالاrelapse-free survival - زنده ماندن بدون عودSUB - زیرCytogenetics - سیتوژنتیک Flow cytometry - فلوسیتومتریChildhood leukemia - لوسمی دوران کودکیAcute lymphoblastic leukemia - لوسمی لنفوبلاستیک حادFish - ماهیbone marrow - مغز استخوانALL - همهChildren's Oncology Group - گروه انکولوژی کودکان
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
تحقیقات سرطان
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The prognostic significance of the ETV6/RUNX1-fusion and of the accompanying aberrations is disputable; whether co-existing sub-clones are responsible for delayed MRD-clearance and thus, moderate outcome, remains to be clarified. We studied, in a paediatric cohort of 119 B-ALLs, the relation between the ETV6/RUNX1 aberration and the co-existing subclones with (a) presenting clinical/biological features, (b) early response to treatment(MRD) and (c) long-term outcome over a 12-year period. Patients were homogeneously treated according to BFM-based-protocols. 27/119 patients (22.7%) were ETV6/RUNX1-positive; 19/27 (70.4%) harbored additional genetic abnormalities while 9/19 (33.3%) presented with clonal heterogeneity. The most common abnormalities were del12p13 (37%), 3-6Ã21q22 (22.2%), del9p21 (18.5%) and 2-3xETV6/RUNX1 (18.5%). MRDd15-positivity (â¥10â3) was detected in 44% of the cohort; the corresponding MRD among patients carrying subclones rises to 88.9%. Common features of all relapses were sub-clonal diversity, FCM-MRDd15-positivity and additional del(9p21) while there were no censored relapses among ETV6/RUNX1-positive patients with sole translocation and absence of additional aberrations, within a median follow-up time of 90 months. In our study, the presence of clonal heterogeneity and impaired FCM-MRD clearance among ETV6/RUNX1-positive patients, ultimately influenced prognosis. Longer follow-up is needed in order to further validate these initial results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cancer Genetics - Volumes 224â225, August 2018, Pages 1-11
Journal: Cancer Genetics - Volumes 224â225, August 2018, Pages 1-11
نویسندگان
Î. Împatzidou, S.I. Papadhimitriou, G. Paterakis, D. Pavlidis, Î. Tsitsikas, I.V. Kostopoulos, V. Papadakis, G. Vassilopoulos, S. Polychronopoulou,