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. 2018 Nov 2;119(12):1538–1551. doi: 10.1038/s41416-018-0265-9

Fig. 4.

Fig. 4

NGLY1 suppression enhanced the production of IFNβ1 and IL-29 that contributes to viability reduction in melanoma cells. (a) The contents of IFNβ1 and IL-29 in the conditioned media of UACC257 and SK-MEL-2 cell clones with the indicated treatment were measured by cytokine profiling. (b) The NGLY1 knockdown-induced upregulation of IFNβ1 and IL-29 was significantly attenuated by the overexpression of exogenous human NGLY1 in the cells. (c) Left panel: the attenuation of NGLY1 knockdown-induced viability reduction by the treatment of specific IFNβ1 neutralisation antibody in the cells. Right panel: the attenuation of NGLY1 knockdown-induced viability reduction by the treatment of specific IL-29 neutralisation antibody in the cells. NGLY knockdown was induced by the treatment of 2 µM dox for 72 h in the cells. (d) The enhanced expression and activation of IRF3, IRF7 and their upstream kinase TBK1 was detected in SK-MEL-2 and MALME3M cells with NGLY1 knockdown. The serine phosphorylation of IRF3 and TBK1 indicates their activity. NT: non-targeting shRNA. 645: NGLY1-targeting shRNA645. All data were presented as mean ± standard deviation (n = 3; *P < 0.05, t-test)