Clinical Significance of Truncated Mutant ΔJBP of TET2 Gene in Patients with Acute Myeloid Leukemia / 中国实验血液学杂志
Journal of Experimental Hematology
;
(6): 1011-1018, 2021.
Article
in Chinese
| WPRIM
| ID: wpr-888512
ABSTRACT
OBJECTIVE@#To the clinical characteristics and prognostic value of the patients with complete deletion of TET_JBP domain (ΔJBP) in TET2 acute myeloid leukemia (AML).@*METHODS@#Next Generation Sequencing technology was used to determine the mutations of 34 AML-related genes (including TET2 gene). The I-TASSER tool was used to predict the tertiary structure of the full-length TET2 protein and TET_JBP structure deletion.@*RESULTS@#Among 38 AML patients with TET2 mutations, 22(57.9%) showed truncation mutations, of which 16 (72.7%) produced TET2ΔJBP truncation mutants. Protein structure prediction showed that the deletion of TET_JBP domain lead to the significant changes of tertiary structure in TET2 protein. Compared with the patients in non-ΔJBP group, the age of patients in ΔJBP group were older (63 vs 54 years old, P=0.047), and the occurrence rate of CEBPA double mutation (CEBPA@*CONCLUSION@#AML patients with TET2ΔJBP truncation mutant shows lower CR rate, shorter EFS and OS after induction chemotherapy, which may be related to the poor prognosis, and co-mutation with CEBPA
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Prognosis
/
Remission Induction
/
Leukemia, Myeloid, Acute
/
Proto-Oncogene Proteins
/
DNA-Binding Proteins
/
Induction Chemotherapy
/
Mutation
Type of study:
Prognostic study
Limits:
Humans
Language:
Chinese
Journal:
Journal of Experimental Hematology
Year:
2021
Type:
Article
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