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. 2020 Oct 13;40(1):28–45. doi: 10.1038/s41388-020-01498-3

Fig. 7. PTPN13 inhibits cell proliferation by inhibiting SSP activation mediated by the IGF2BP1-c-Myc axis.

Fig. 7

A Proliferation profiles of PLC/PRF/5 PTPN13-overexpressing cells transiently transfected with pCDH-IGF2BP1 or the control and PTPN13 interference cells with stable IGF2BP1 knockdown by shRNA or the control were analyzed by cell cycle analysis. B Proliferation profiles of the indicated cells described in (A) were analyzed by colony formation analysis. C Proliferation profiles of the indicated cells described in (A) were analyzed by an EdU assay. D Proliferative capacity in vivo of PTPN13 interference cells with stable IGF2BP1 knockdown by shRNA or the control were analyzed by subcutaneous tumor formation in nude mice. E The remaining c-Myc mRNA expression was measured after treatment with actinomycin D (Act. D) and the knockdown or overexpression of PTPN13 or IGF2BP1 in PLC/PRF/5 cells. F The GSH level and GSH/GSSG ratio were determined in Huh7 cells expressing siRNAs targeting IGF2BP1 or PTPN13, stable IGF2BP1 knockdown cells with c-Myc overexpression, and stable PTPN13 knockdown cells with IGF2BP1 knockdown by shRNAs. The data represent the mean ± SD of three independent experiments (*P < 0.05, **P < 0.01, ***P < 0.001; ns not significant).