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Archives of biochemistry and biophysics

14-3-3ζ promotes esophageal squamous cell carcinoma invasion by repressing S1PR2 protein expression through NF-κB signaling.


PMID 29458005

Abstract

14-3-3ζ is overexpressed in several cancers, including esophageal squamous cell carcinoma (ESCC), and plays an important role in tumorigenesis. However, the mechanisms underlying its tumorigenesis remain unclear. Here we report that 14-3-3ζ was upregulated in ESCC tumors, compared with adjacent normal tissues; 14-3-3ζ levels were positively correlated with ESCC lymph node metastasis and recurrence. Overexpression of 14-3-3ζ promoted the tumor growth and invasion of ESCC in vitro and in vivo, whereas depletion of 14-3-3ζ suppressed these effects. Moreover, 14-3-3ζ reduces expression of genes mediating S1P/S1PR2 signaling, and this effect is mediated through activation of NF- κ B. Taken together, 14-3-3ζ contributes to ESCC tumorigenesis and progression through repressing S1PR2 signaling and may act as a new therapeutic target for ESCC.

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