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  • Title: LATS2 inhibits the activity of NF-κ B signaling by disrupting the interaction between TAK1 and IKKβ.
    Author: Yao F, Zhou W, Zhong C, Fang W.
    Journal: Tumour Biol; 2015 Sep; 36(10):7873-9. PubMed ID: 25946971.
    Abstract:
    NF-κB signaling plays very important role in the tumorigenesis of nonsmall cell lung cancer (NSCLC). However, the molecular mechanisms for the dysregulation of NF-κB signaling in NSCLC have not been fully understood. In the previous reports, we have showed that large tumor suppressor gene 2 (LATS2) inhibited NF-κB signaling in NSCLC cells, whereas the details for the mechanism remain unknown. Here, we reported that LATS2 is a suppressor of tumor necrosis factor (TNF-α)-induced NF-κB signaling by inhibiting the interaction between TAK1 and IKKβ. Overexpression of LATS2 largely blocked TNF-α-induced NF-κB activation and IκBα degradation, whereas knockdown of LATS2 showed the opposing results. Mechanistically, we identified that LATS2 interacted with IKKβ and blocked the interaction between IKKβ and TAK1. Our results indicate that LATS2 functions as a pivotal negative regulator in TNF-α-induced activation of NF-κB via disrupting the interaction of TAK1 with IKKβ.
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