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. 2020 Jan 21;10:766. doi: 10.1038/s41598-020-57698-0

Figure 2.

Figure 2

SENP2 down regulation potentiates bortezomib resistance: (A) Schematic view of SENP2 gene sgRNA sequence designed to target its peptidase_C48 domain. (B) DNA chromatograms obtained from Sanger sequencing of SENP2-sgRNA clones, wherein, 3 types of mutations are inserted in peptidase_C48 domain, which are named as Clone A, B, and C. (C) Western blot analysis to detect SENP2 protein expression in SENP2-sgRNA clones A, B, and C, compared to wild type (WT) cells. Here, GAPDH serves as a loading control. (D) SENP2 wild type (WT) cells and SENP2-sgRNA Clone A, B, C cells were treated with 25 nM bortezomib and cell proliferation at different time points were analysed by using CCK8 kit. (E) SENP2 wild type (WT) cells and SENP2-sgRNA clone-A cells were treated with 0, 5, 10, 15, 25 nM of bortezomib for 48 hours. Then, apoptosis was measured by Annexin-V APC/PI double staining.