Abstract
In Southeast Asia, the prevalence of nasopharyngeal carcinoma (NPC) is high; however, the molecular mechanism governing the progression of NPC is unclear. The results of the present study revealed upregulation of ring finger protein 219 (RNF219) expression in NPC tissues and cells. Overexpression of RNF219 enhanced NPC cell invasion, migration, and proliferation; whereas knockdown of RNF219 had the opposite effects. Mechanistically, RNF219 activated the nuclear factor kappa B (NF-κB) pathway, mainly reflected by increased p65 nuclear translocation, and increased NF-κB pathway target gene expression. NF-κB pathway inhibition in cells overexpressing RNF219 resulted in reduced invasion, migration, and proliferation, confirming that progression of NPC was promoted by RNF219-mediated NF-κB pathway activation. In addition, the expression of RNF219 correlated positively with the activity of the NF-κB pathway, verifying that RNF219 regulates the activity of the NF-κB pathway in the clinical setting. Our results identified a novel therapeutic target that could promote the development of novel treatments for NPC.
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The data used to support the findings of this study are available from the corresponding author upon request.
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Acknowledgements
This work was supported by the Project of Guangxi Medical and Health Self-financing Plan [Grant No. Z20181011]; the Promoting the Basic Ability of Scientific Research of Young and Middle-aged Teachers in Universities of Guangxi, China [Grant No. 2019KY0111].
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Supplementary file1 (The effect of RNF219 overexpression and knockdown. A. Western blotting assay for RNF219 in RNF219 overexpressing cells. B. Western blotting assay for RNF219 in RNF219 knockdown cells.)
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Li, XD., Zhong, QL., Luo, DJ. et al. RNF219 Promotes Nasopharyngeal Carcinoma Progression by Activating the NF-κB Pathway. Mol Biotechnol 65, 1318–1326 (2023). https://doi.org/10.1007/s12033-022-00593-y
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DOI: https://doi.org/10.1007/s12033-022-00593-y