Volume 45, Issue 5 pp. 743-750
ORIGINAL ARTICLE

Immunophenotype distinctions of CEBPA mutation subtypes in acute myeloid leukemia

Qiaoxue Liu

Qiaoxue Liu

State Key Laboratory of Experimental Hematology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China

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Ling Qi

Ling Qi

The Center of Hematology, The First Affiliated Hospital of Nanchang University, Nanchang, China

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Miao Yang

Miao Yang

State Key Laboratory of Experimental Hematology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China

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Xue Zhang

Xue Zhang

State Key Laboratory of Experimental Hematology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China

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Fei Li

Corresponding Author

Fei Li

The Center of Hematology, The First Affiliated Hospital of Nanchang University, Nanchang, China

Correspondence

Fei Li, The Center of Hematology, The First Affiliated Hospital of Nanchang University, Nanchang, China.

Email: [email protected]

Hui Wei and Jianxiang Wang, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Disease, Haihe Laboratory of Cell Ecosystem, Leukemia Center, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing Rd 288, Tianjin 300020, China.

Email: [email protected] and [email protected]

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Hui Wei

Corresponding Author

Hui Wei

State Key Laboratory of Experimental Hematology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China

National Clinical Research Center for Blood Disease, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China

Haihe Laboratory of Cell Ecosystem, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China

Leukemia Center, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China

Correspondence

Fei Li, The Center of Hematology, The First Affiliated Hospital of Nanchang University, Nanchang, China.

Email: [email protected]

Hui Wei and Jianxiang Wang, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Disease, Haihe Laboratory of Cell Ecosystem, Leukemia Center, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing Rd 288, Tianjin 300020, China.

Email: [email protected] and [email protected]

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Jianxiang Wang

Corresponding Author

Jianxiang Wang

State Key Laboratory of Experimental Hematology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China

National Clinical Research Center for Blood Disease, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China

Haihe Laboratory of Cell Ecosystem, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China

Leukemia Center, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China

Correspondence

Fei Li, The Center of Hematology, The First Affiliated Hospital of Nanchang University, Nanchang, China.

Email: [email protected]

Hui Wei and Jianxiang Wang, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Disease, Haihe Laboratory of Cell Ecosystem, Leukemia Center, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing Rd 288, Tianjin 300020, China.

Email: [email protected] and [email protected]

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First published: 19 June 2023
Citations: 1

Qiaoxue Liu and Ling Qi contributed equally to this study.

Abstract

Introduction

Acute myeloid leukemia (AML) patients with CEBPA double mutation (CEBPAdm) were associated with distinct immunophenotypes and prognosis. Recently, both International Consensus Classification (ICC) and World Health Organization (WHO) classifications incorporated BZIP single mutations (CEBPAsmBZIP) into the favorable risk group. However, the immunophenotypes of CEBPAsmBZIP mutations have not been characterized, especially when compared with the immunophenotypes of CEBPAdm.

Methods

Retrospectively, we investigated and compared the immunophenotypes of AML with CEBPA mutations. Randomforest model and XGBoost algorithm were used to set up a scoring system based on the immunophenotypes of those patients.

Results

In a total of 967 AML patients: 218 were CEBPAdm (198 consisted of mutations in the BZIP region [CEBPAdmBZIP], 20 were double mutations outside BZIP region [CEBPAdm-woBZIP]), 117 were CEBPAsm (54 CEBPAsmBZIP and 63 were single mutations outside BZIP region [CEBPAsm-woBZIP]) and the others were wildtype CEBPA (CEBPAwt). Patients with CEBPAdmBZIP, CEBPAdm-woBZIP and CEBPAsmBZIP shared the distinct immunophenotype of CD7+ CD34+ MPO+ HLA-DR+ CD19, in contrast to patients with CEBPAsm-woBZIP and CEBPAwt who showed reduced expression of CD7, HLA-DR, MPO, CD34 and a higher expression of CD19. Based on these immunophenotypes, we developed a scoring system to preemptively identify AML with CEBPAsmBZIP and CEBPAdm and validated it internally and externally.

Conclusions

AML with CEBPAdmBZIP, CEBPAdm-woBZIP, and CEBPAsmBZIP shared similar immunophenotypic profiles, whereas profoundly differed from the CEBPAsm-woBZIP and CEBPAwt AML.

CONFLICT OF INTEREST STATEMENT

The authors declare no competing interests.

DATA AVAILABILITY STATEMENT

The data sets analyzed during the current study are available from the corresponding author upon reasonable request.

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