Ontology highlight
ABSTRACT: Background
Expression of long non-coding RNAs (lncRNAs) has recently been recognized as a potential prognostic marker in acute myeloid leukemia (AML). However, it remains unclear whether incorporation of the lncRNAs expression in the 2017 European LeukemiaNet (ELN) risk classification can further improve the prognostic prediction.Methods
We enrolled 275 newly diagnosed non-M3 AML patients and randomly assigned them to the training (n = 183) and validation cohorts (n = 92). In the training cohort, we formulated a prognostic lncRNA scoring system composed of five lncRNAs with significant prognostic impact from the lncRNA expression profiling.Findings
Higher lncRNA scores were significantly associated with older age and adverse gene mutations. Further, the higher-score patients had shorter overall and disease-free survival than lower-score patients, which were also confirmed in both internal and external validation cohorts (TCGA database). The multivariate analyses revealed the lncRNA score was an independent prognosticator in AML, irrespective of the risk based on the 2017 ELN classification. Moreover, in the 2017 ELN intermediate-risk subgroup, lncRNA scoring system could well dichotomize the patients into two groups with distinct prognosis. Within the ELN intermediate-risk subgroup, we found that allogeneic hematopoietic stem cell transplantation could provide better outcome on patients with higher lncRNA scores. Through bioinformatics approach, we identified high lncRNA scores were correlated with leukemia/hematopoietic stem cell signatures.Interpretation
Incorporation of lncRNA scoring system in 2017 ELN classification can improve risk-stratification of AML patients and help clinical decision-making. FUND: This work was supported Ministry of Science and Technology, and Ministry of Health and Welfare of Taiwan.
SUBMITTER: Tsai CH
PROVIDER: S-EPMC6413345 | biostudies-literature | 2019 Feb
REPOSITORIES: biostudies-literature
Tsai Cheng-Hong CH Yao Chi-Yuan CY Tien Feng-Min FM Tang Jih-Luh JL Kuo Yuan-Yeh YY Chiu Yu-Chiao YC Lin Chien-Chin CC Tseng Mei-Hsuan MH Peng Yen-Ling YL Liu Ming-Chih MC Liu Chia-Wen CW Yao Ming M Lin Liang-In LI Chou Wen-Chien WC Chen Chien-Yu CY Hou Hsin-An HA Tien Hwei-Fang HF
EBioMedicine 20190117
<h4>Background</h4>Expression of long non-coding RNAs (lncRNAs) has recently been recognized as a potential prognostic marker in acute myeloid leukemia (AML). However, it remains unclear whether incorporation of the lncRNAs expression in the 2017 European LeukemiaNet (ELN) risk classification can further improve the prognostic prediction.<h4>Methods</h4>We enrolled 275 newly diagnosed non-M3 AML patients and randomly assigned them to the training (n = 183) and validation cohorts (n = 92). In the ...[more]