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  • Title: [Differentiation and malignant suppression induced by mouse erythroid differentiation and denucleation factor on mouse erythroleukemia cells].
    Author: Zhao Q, Ge YH, Zhou JP, Ma J, Chen KQ, Xue SP, Han DS.
    Journal: Zhongguo Yi Xue Ke Xue Yuan Xue Bao; 2001 Feb; 23(1):32-5. PubMed ID: 12905814.
    Abstract:
    OBJECTIVE: To investigate the roles of mouse erythroid differentiation and denucleation factor (MEDDF), newly cloned in our laboratory, in erythroid terminal differentiation. METHODS: Mouse erythroleukemia cells (MEL) were transfected with eukaryotic expression plasmid pcDNA-MEDDF. The changes of cell growth rate, mitotic index and colony-forming rate in semi-solid medium were investigated. The expressions of c-myc and beta-globin genes were analysed by semi-quantitative RT-PCR. RESULTS: MEL cells transfected with pcDNA-MEDDF showed significant lower growth rate, mitotic index, and colony-forming rate in semisolid medium(P < 0.01). The percentage of benzidine-positive cells was 32.8% after transfection. The expression of beta-globin in cells transfected with pcDNA-MEDDF was 3.43 times higher than that of control (MEL transfected with blank vector, pcDNA3.1), and the expression of c-myc was decreased by 66.3%. CONCLUSIONS: MEDDF can induce differentiation of MEL cell, and suppress its malignancy likely.
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