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. 2021 Sep 23;21:509. doi: 10.1186/s12935-021-02212-3

Fig. 4.

Fig. 4

MDK promotes the proliferation of GBM cells. A, B Baseline MDK expression based on western blot and quantification, showing MDK levels in GBM cell lines in which MDK was knocked down (MDK-KD) or overexpressed (MDK-OE), and in negative control (NC) GBM cell lines. Beta-actin served as a loading control. C The proliferation of MDK-KD, MDK-OE, and NC GBM cell lines was analyzed using the CCK8 assay. MDK: midkine; GBM: glioblastoma; IB: immunoblotting