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Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Nat+Commun 2017 ; 8 (ä): ä Nephropedia Template TP
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The IKK/NF-?B signaling pathway requires Morgana to drive breast cancer metastasis #MMPMID29158506
NF-?B is a transcription factor involved in the regulation of multiple physiological and pathological cellular processes, including inflammation, cell survival, proliferation, and cancer cell metastasis. NF-?B is frequently hyperactivated in several cancers, including triple-negative breast cancer. Here we show that NF-?B activation in breast cancer cells depends on the presence of the CHORDC1 gene product Morgana, a previously unknown component of the IKK complex and essential for I?B? substrate recognition. Morgana silencing blocks metastasis formation in breast cancer mouse models and this phenotype is reverted by I?B? downregulation. High Morgana expression levels in cancer cells decrease recruitment of natural killer cells in the first phases of tumor growth and induce the expression of cytokines able to attract neutrophils in the primary tumor, as well as in the pre-metastatic lungs, fueling cancer metastasis. In accordance, high Morgana levels positively correlate with NF-?B target gene expression and poor prognosis in human patients.