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. 2022 Nov 1;13(11):919. doi: 10.1038/s41419-022-05362-y

Fig. 9. A graphic illustration shows the METTL14/SMAD1 axis in OP.

Fig. 9

In OP, METTL14 was downregulated and inhibited m6A methylation of SMAD1. The methylation suppression was regulated by m6A reader IGF2BP1, leading to the degradation of SMAD1 at mRNA and protein levels. In normal, METTL14 promoted m6A methylation of SMAD1 by modulating IGF2BP1, increasing SMAD1 protein expression.