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    PLC-beta 1 regulates the expression of miR-210 during mithramycin-mediated erythroid differentiation in K562 cells

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    Author
    Bavelloni, Alberto; Poli, Alessandro; Fiume, Roberta; Blalock, William L.; Matteucci, Alessandro; Ramazzotti, Giulia; McCubrey, James A.; Cocco, Lucio; Faenza, Irene
    Abstract
    PLC-beta 1 (PLCβ1) inhibits in human K562 cells erythroid differentiation induced by mithramycin (MTH) by targeting miR-210 expression. Inhibition of miR-210 affects the erythroid differentiation pathway and it occurs to a greater extent in MTH-treated cells. Overexpression of PLCβ1 suppresses the differentiation of K562 elicited by MTH as demonstrated by the absence of γ-globin expression. Inhibition of PLCβ1 expression is capable to promote the differentiation process leading to a recovery of γ-globin gene even in the absence of MTH. Our experimental evidences suggest that PLCβ1 signaling regulates erythropoiesis through miR-210. Indeed overexpression of PLCβ1 leads to a decrease of miR-210 expression after MTH treatment. Moreover miR-210 is up-regulated when PLCβ1 expression is down-regulated. When we silenced PKCα by RNAi technique, we found a decrease in miR-210 and γ-globin expression levels, which led to a severe slowdown of cell differentiation in K562 cells and these effects were the same encountered in cells overexpressing PLCβ1. Therefore we suggest a novel role for PLCβ1 in regulating miR-210 and our data hint at the fact that, in human K562 erythroleukemia cells, the modulation of PLCβ1 expression is able to exert an impairment of normal erythropoiesis as assessed by γ-globin expression.
    URI
    http://hdl.handle.net/10342/5685
    Subject
     phospholipase Cβ1; erythropoiesis; K562; miR-210; γ-globin 
    Date
    2014-06
    Citation:
    APA:
    Bavelloni, Alberto, & Poli, Alessandro, & Fiume, Roberta, & Blalock, William L., & Matteucci, Alessandro, & Ramazzotti, Giulia, & McCubrey, James A., & Cocco, Lucio, & Faenza, Irene. (June 2014). PLC-beta 1 regulates the expression of miR-210 during mithramycin-mediated erythroid differentiation in K562 cells. Oncotarget, 5(12), 4222- 4231. Retrieved from http://hdl.handle.net/10342/5685

    Display/Hide MLA, Chicago and APA citation formats.

    MLA:
    Bavelloni, Alberto, and Poli, Alessandro, and Fiume, Roberta, and Blalock, William L., and Matteucci, Alessandro, and Ramazzotti, Giulia, and McCubrey, James A., and Cocco, Lucio, and Faenza, Irene. "PLC-beta 1 regulates the expression of miR-210 during mithramycin-mediated erythroid differentiation in K562 cells". Oncotarget. 5:12. (4222-4231), June 2014. October 03, 2023. http://hdl.handle.net/10342/5685.
    Chicago:
    Bavelloni, Alberto and Poli, Alessandro and Fiume, Roberta and Blalock, William L. and Matteucci, Alessandro and Ramazzotti, Giulia and McCubrey, James A. and Cocco, Lucio and Faenza, Irene, "PLC-beta 1 regulates the expression of miR-210 during mithramycin-mediated erythroid differentiation in K562 cells," Oncotarget 5, no. 12 (June 2014), http://hdl.handle.net/10342/5685 (accessed October 03, 2023).
    AMA:
    Bavelloni, Alberto, Poli, Alessandro, Fiume, Roberta, Blalock, William L., Matteucci, Alessandro, Ramazzotti, Giulia, McCubrey, James A., Cocco, Lucio, Faenza, Irene. PLC-beta 1 regulates the expression of miR-210 during mithramycin-mediated erythroid differentiation in K562 cells. Oncotarget. June 2014; 5(12): 4222-4231. http://hdl.handle.net/10342/5685. Accessed October 03, 2023.
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