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  • Title: [Experimental study of 131I-labeled granulocyte macrophage colony-stimulating factor in SCID mouse-acute myeloid leukemia model].
    Author: Deng YJ, Lou SF, Xu YZ.
    Journal: Zhonghua Xue Ye Xue Za Zhi; 2007 Jan; 28(1):33-6. PubMed ID: 17649724.
    Abstract:
    OBJECTIVE: To observe the therapeutic efficacy of 131I-labeled granulocyte macrophage colony-stimulating factor (GM-SCF) in SCID mouse-acute myeloid leukemia model, and the relationship between dose and effect. METHODS: SCID-mouse acute myeloid leukemia model was established by injecting HL-60 cells through tail vein. GM-CSF was labeled with 131I by the chloramines-T method. SCID mice were randomly divided into 6 groups. Groups I, II and III treatment groups were given 9.25 x 10(5), 22.20 x 10(5) and 37.00 x 10(5) Bq of 131I-GM-CSF, respectively. Group IV was given 131I. Group V was given blending of 131I and GM-CSF. Group VI was control. Changes of HL-60 cells in blood and marrow, as well as white blood cells, red blood cells and platelets in blood were detected. Survival time of the SCID mice was calculated. RESULT: It was observed that WBC, HL-60 cells in blood and marrow were less in treatment groups than that in control groups, especially in groups II, III. After 2 weeks of treatment, BPC of II, III groups increased remarkably (P < 0.01). Survival time of the SCID mice was prolonged in treatment groups (P < 0.01), especially in group III, the longest survival time of 60 days. CONCLUSION: 131I-GM-CSF could increase leukemic SCID mice survival rate. The therapeutic efficacy of low dose and mediate dose of 131I-GM-CSF is dose-dependent. 131I-GM-CSF is an effective radiation immunity therapy for leukemic mice.
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