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. 2022 Sep 29;30(2):279–292. doi: 10.1038/s41418-022-01062-4

Fig. 1. Crosstalk between NF-κB and metabolic pathways.

Fig. 1

TNF induces NF-κB activation via the assembly of a complex which includes RIPK1, the E3 ligases cIAP1/2 and LUBAC which ubiquitinate and stabilise the complex, and the kinase complexes IKKɑ/β/ɣ (NEMO) and TAK1/TAB1/2. The thereby activated IKKɑ/β/ɣ(NEMO) complex promotes degradation of the inhibitor of kB (IκB) and activation of NF-κB (here exemplified as p50/RelA/p65) which translocates to the nucleus and activates target genes. Activation of NF-κB then results in the inhibition of AMPK and Insulin signalling (red arrows and blockers). AMPK is a sensor of low ATP and induces a plethora of catabolic processes to uptake/produce energy whilst blocking processes that required energy (ATP) (green arrows and blockers). Activation of both Adiponectin Receptor (AdR) and Leptin Receptor (LepR) induces AMPK phosporylation and glucose uptake. Insulin sensing by Insulin Receptor (IR) is crucial for glucose uptake by activating Akt and allowing the activity of glucose transporters (GLUT4).