The application of CD73 in minimal residual disease monitoring using flow cytometry in B-cell acute lymphoblastic leukemia

• Published in: Leukemia & lymphoma Vol. 57; no. 5; pp. 1174 - 1181
• Main Authors: Wang, Wei, Gao, Li, Li, Yan, Li, Zhen-Ling, Gong, Ming, Huang, Fan-Zhou, Chen, Yan-Rong, Zhang, Chun-Xia, Gao, Ya-Yue, Ma, Yi-Gai
• Format: Journal Article
• Language: English
• Published: United States Taylor & Francis 03.05.2016
• Subjects: 5'-Nucleotidase - genetics; 5'-Nucleotidase - metabolism; Adult; Aged; Antigens, CD - genetics; Antigens, CD - metabolism; B-cell acute lymphoblastic leukemia; Biomarkers, Tumor; Female; Flow Cytometry; Gene Expression; Humans; Immunophenotyping; Male; Middle Aged; minimal residual disease; Neoplasm, Residual - diagnosis; Neoplasm, Residual - metabolism; Polymerase Chain Reaction; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma - diagnosis; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma - drug therapy; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma - genetics; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma - metabolism; Sensitivity and Specificity; flow cytometry; minimal residual disease; B-cell acute lymphoblastic leukemia
• ISSN: 1042-8194; 1029-2403
• DOI: 10.3109/10428194.2015.1070153

The expression of CD73 by flow cytometry (FC) in bone marrow (BM) specimens of B-cell acute lymphoblastic leukemia (B-ALL) with or without minimal residual disease (MRD) was studied, and its advantages were evaluated using the MRD assay. This study also detected the expression profile of CD73 in hematogones and mature B cells in BM specimens of 18 healthy donors. Results showed that the mean value of CD73 expression in MRD-positive B cells was 6-fold greater than that in the MRD negative ones. Also, 41.82% MRD-positive B-ALL cases expressed high CD73 and the sensitivity of CD73-based MRD detection reached 10 −4 . Since the expression of CD73 increases with the maturation of normal B cells, it is better to mix it with CD34, CD10 and CD20 in one tube to prevent the disturbance of mature B cells. CD73 is recommended as an optional MRD marker for B-ALL patients by using FC.