2021
Loss-of-Function Mutations of BCOR Are an Independent Marker of Adverse Outcomes in Intensively Treated Patients with Acute Myeloid Leukemia
ECKARDT, J. N., S. STASIK, M. KRAMER, C. ROLLIG, A. KRAMER et. al.Základní údaje
Originální název
Loss-of-Function Mutations of BCOR Are an Independent Marker of Adverse Outcomes in Intensively Treated Patients with Acute Myeloid Leukemia
Autoři
ECKARDT, J. N. (garant), S. STASIK, M. KRAMER, C. ROLLIG, A. KRAMER, S. SCHOLL, A. HOCHHAUS, M. CRYSANDT, T. H. BRUMMENDORF, R. NAUMANN, B. STEFFEN, V. KUNZMANN, H. EINSELE, M. SCHAICH, A. BURCHERT, A. NEUBAUER, K. SCHAFER-ECKART, C. SCHLIEMANN, S. W. KRAUSE, R. HERBST, M. HANEL, N. FRICKHOFEN, R. NOPPENEY, U. KAISER, C. D. BALDUS, M. KAUFMANN, Zdeněk RÁČIL (203 Česká republika, domácí), U. PLATZBECKER, W. E. BERDEL, Jiří MAYER (203 Česká republika, domácí), H. SERVE, C. MULLER-TIDOW, G. EHNINGER, F. STOLZEL, F. KROSCHINSKY, J. SCHETELIG, M. BORNHAUSER, C. THIEDE a J. M. MIDDEKE
Vydání
Cancers, BASEL, MDPI, 2021, 2072-6694
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30204 Oncology
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 6.575
Kód RIV
RIV/00216224:14110/21:00121725
Organizační jednotka
Lékařská fakulta
UT WoS
000649898900001
Klíčová slova anglicky
acute myeloid leukemia; BCOR; BCORL1; loss-of-function; risk stratification; survival
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 8. 6. 2021 10:40, Mgr. Tereza Miškechová
Anotace
V originále
Simple Summary Acute myeloid leukemia (AML) is a genetically heterogeneous disease. Clinical phenotypes of frequent mutations and their impact on patient outcome are well established. However, the role of rare mutations often remains elusive. We retrospectively analyzed 1529 newly diagnosed and intensively treated AML patients for mutations of BCOR and BCORL1. We report a distinct co-mutational pattern that suggests a role in disease progression rather than initiation, especially affecting mechanisms of DNA-methylation. Further, we found loss-of-function mutations of BCOR to be independent markers of poor outcomes in multivariable analysis. Therefore, loss-of-function mutations of BCOR need to be considered for AML management, as they may influence risk stratification and subsequent treatment allocation. Acute myeloid leukemia (AML) is characterized by recurrent genetic events. The BCL6 corepressor (BCOR) and its homolog, the BCL6 corepressor-like 1 (BCORL1), have been reported to be rare but recurrent mutations in AML. Previously, smaller studies have reported conflicting results regarding impacts on outcomes. Here, we retrospectively analyzed a large cohort of 1529 patients with newly diagnosed and intensively treated AML. BCOR and BCORL1 mutations were found in 71 (4.6%) and 53 patients (3.5%), respectively. Frequently co-mutated genes were DNTM3A, TET2 and RUNX1. Mutated BCORL1 and loss-of-function mutations of BCOR were significantly more common in the ELN2017 intermediate-risk group. Patients harboring loss-of-function mutations of BCOR had a significantly reduced median event-free survival (HR = 1.464 (95%-Confidence Interval (CI): 1.005-2.134), p = 0.047), relapse-free survival (HR = 1.904 (95%-CI: 1.163-3.117), p = 0.01), and trend for reduced overall survival (HR = 1.495 (95%-CI: 0.990-2.258), p = 0.056) in multivariable analysis. Our study establishes a novel role for loss-of-function mutations of BCOR regarding risk stratification in AML, which may influence treatment allocation.