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  • Title: [Level of SDF-1/CXCR4 in children with acute leukemia and its significance].
    Author: Wen Q, Chen RL, Cai KR, Lin YW.
    Journal: Zhongguo Shi Yan Xue Ye Xue Za Zhi; 2011 Apr; 19(2):324-6. PubMed ID: 21518481.
    Abstract:
    The objective of this study was to detect the level of plasma stromal cell-derived factor-1 (SDF-1) and the expression of CXCR4 (SDF-1 receptor in bone marrow cells) in children with Acute Leukemia (AL) and to investigate the relationship between the expression of CXCR4 and extramedullary infiltration. 48 children with acute leukemia and 20 with non-hematologic malignancies were selected into the AL group and the control group respectively. The peripheral plasma and bone marrow cells were collected. The level of SDF-1 in peripheral plasma was detected by ELISA and the expression of CXCR4 in bone marrow cells was determined by flow cytometry. The results showed that the levels of SDF-1 in peripheral plasma and the expression of CXCR4 in bone marrow cells of AL group was significantly higher than that of control group, among which the level of SDF-1 of the acute lymphoblastic leukemia (ALL) group was also higher than that of the acute myeloid leukemia (AML) group, the expression level of CXCR4 in the bone marrow cells of the extramedullary infiltration (EI) group was higher than that of the non-extramedullary Infiltration (NI) group, and all the differences between the both groups were significant. It is concluded that SDF-1 and CXCR4 express a high level in children with AL, which closely relates with the type of leukemia and the migration and infiltration of leukemia cells in bone marrow.
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