J 2021

Impact of PTPN11 mutations on clinical outcome analyzed in 1529 patients with acute myeloid leukemia

STASIK, S., J. N. ECKARDT, M. KRAMER, C. ROLLIG, A. KRAMER et. al.

Basic information

Original name

Impact of PTPN11 mutations on clinical outcome analyzed in 1529 patients with acute myeloid leukemia

Authors

STASIK, S., J. N. ECKARDT, 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. KRAUSE, R. HERBST, M. HANEL, N. FRICKHOFEN, R. NOPPENEY, U. KAISER, C. D. BALDUS, M. KAUFMANN, Zdeněk RÁČIL (203 Czech Republic, belonging to the institution), U. PLATZBECKER, W. E. BERDEL, Jiří MAYER (203 Czech Republic, belonging to the institution), H. SERVE, C. MULLER-TIDOW, G. EHNINGER, M. BORNHAUSER, J. SCHETELIG, J. M. MIDDEKE and C. THIEDE (guarantor)

Edition

BLOOD ADVANCES, WASHINGTON, AMER SOC HEMATOLOGY, 2021, 2473-9529

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30205 Hematology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 7.637

RIV identification code

RIV/00216224:14110/21:00122748

Organization unit

Faculty of Medicine

UT WoS

000702743800004

Keywords in English

PTPN11 mutations; cute myeloid leukemia

Tags

Tags

International impact, Reviewed
Změněno: 5/11/2021 10:15, Mgr. Tereza Miškechová

Abstract

V originále

The tyrosine-protein phosphatase nonreceptor type 11 (PTPN11) is an important regulator of RAS signaling and frequently affected by mutations in patients with acute myeloid leukemia (AML). Despite the relevance for leukemogenesis and as a potential therapeutic target, the prognostic role is controversial. To investigate the prognostic impact of PTPN11 mutations, we analyzed 1529 adult AML patients using next-generation sequencing. PTPN11 mutations were detected in 106 of 1529 (6.93%) patients (median VAF: 24%) in dominant (36%) and subclonal (64%) configuration. Patients with PTPN11 mutations were associated with concomitant mutations in NPM1 (63%), DNMT3A (37%), and NRAS (21%) and had a higher rate of European LeukemiaNet (ELN) favorable cytogenetics (57.8% vs 39.1%; P < .001) and higher white blood cell counts (P = .007) compared with PTPN11 wild-type patients. In a multivariable analysis, PTPN11 mutations were independently associated with poor overall survival (hazard ratio [HR]: 1.75; P < .001), relapse-free survival (HR: 1.52; P = .013), and a lower rate of complete remission (odds ratio: 0.46; P = .008). Importantly, the deleterious effect of PTPN11 mutations was confined predominantly to the ELN favorable-risk group and patients with subclonal PTPN11 mutations (HR: 2.28; P < .001) but not found with dominant PTPN11 mutations (HR: 1.07; P = .775), presumably because of significant differences within the rate and spectrum of associated comutations. In conclusion, our data suggest an overall poor prognostic impact of PTPN11 mutations in AML, which is significantly modified by the underlying cytogenetics and the clonal context in which they occur.