Abstract:
:Nasopharyngeal carcinoma (NPC) is a unique head and neck cancer with highly aggressive and metastatic potential in which distant metastasis is the main reason for treatment failure. Till present, the underlying molecular mechanisms of NPC metastasis remains poorly understood. Here, we identified S100 calcium-binding protein A14 (S100A14) as a functional regulator suppressing NPC metastasis by inhibiting the NF-kB signaling pathway and reversing the epithelial-mesenchymal transition (EMT). S100A14 was found to be downregulated in highly metastatic NPC cells and tissues. Immunohistochemical staining of 202 NPC samples revealed that lower S100A14 expression was significantly correlated with shorter patient overall survival (OS) and distant metastasis-free survival (DMFS). S100A14 was also found as an independent prognostic factor for favorable survival. Gain- and loss-of-function studies confirmed that S100A14 suppressed the in vitro and in vivo motility of NPC cells. Mechanistically, S100A14 promoted the ubiquitin-proteasome-mediated degradation of interleukin-1 receptor-associated kinase 1 (IRAK1) to suppress NPC cellular migration. Moreover, S100A14 and IRAK1 established a feedback loop that could be disrupted by the IRAK1 inhibitor T2457. Overall, our findings showed that the S100A14-IRAK1 feedback loop could be a promising therapeutic target for NPC metastasis.
journal_name
Oncogenejournal_title
Oncogeneauthors
Meng DF,Sun R,Liu GY,Peng LX,Zheng LS,Xie P,Lin ST,Mei Y,Qiang YY,Li CZ,Xu L,Peng XS,Hu H,Lang YH,Liu ZJ,Wang MD,Guo LL,Xie DH,Shu DT,Li HF,Luo FF,Niu XT,Huang BJ,Qian CNdoi
10.1038/s41388-020-1363-8subject
Has Abstractpub_date
2020-07-01 00:00:00pages
5307-5322issue
30eissn
0950-9232issn
1476-5594pii
10.1038/s41388-020-1363-8journal_volume
39pub_type
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