Key Laboratory of Developmental Disease in the Ministry of Education

Qinzhou, China

Key Laboratory of Developmental Disease in the Ministry of Education

Qinzhou, China
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Long J.,Chongqing Medical University | Long J.,Key Laboratory of Developmental Disease in the Ministry of Education | Long J.,Key Laboratory of Pediatrics in Chongqing | Liu S.,Chongqing Medical University | And 14 more authors.
Leukemia and Lymphoma | Year: 2014

The CD34+/CD38- immunophenotype is used to identify candidate hematopoietic stem cells (HSCs) and leukemia-initiating cells (LICs). However, the clinical significance of the CD34+/CD38-proportion in childhood acute lymphoblastic leukemia (ALL) is not well established. Here, we found that a high proportion of CD34+/CD38- cells from 112 patients with childhood ALL was negatively correlated with the outcome. Also the percentage of CD34+/CD38- cells was associated with clinical and biological features of patients with ALL. Further, a high proportion of CD34+/CD38- cells in childhood ALL was positively correlated with advanced risk subgroups, which could predict risk stratification by receiver operating characteristic (ROC) curve analysis. In addition, a larger tumor burden and lower survival rate were observed in mice injected with CD34+/CD38- cells, but not in mice injected with other fractions. Our data reveal that a high proportion of CD34+/CD38- cells is positively associated with a poor prognosis of childhood ALL, to further guide therapy of the disease. © 2014 Informa UK, Ltd.

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