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TAK1 (Transforming growth factor activated kinase-1), a member of the mitogen-activated protein kinase kinase kinase family, has emerged as a key regulator of signal transduction cascades leading to the activation of the transcription factors nuclear factor-kappa B (NF- B) and activator protein-1 (AP-1). Stimulation of cells with cytokines and microbial pathogens results in the activation of TAK1, which subsequently activates the I-kappa B kinase complex (IKK) and mitogen-activated protein (MAP) kinases, culminating in the activation of NF- B and AP-1, respectively. Recent studies have shown that polyubiquitination of signalling proteins through lysine (Lys)-63-linked polyubiquitin chains plays an important role in the activation of TAK1 and IKK.
TAK1 Inhibitors & Modulators (1)
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NG25, a TAK1 inhibitor, inhibited the activation of IKK by TLR7 and TLR9 agonists and prevented the secretion of type 1 IFNs induced by these ligands in Gen2.2 cells.