NEDD4L Regulates the Proliferation and Metastasis of Non-small-cell Lung Cancer by Mediating CPNE1 Ubiquitination

Author(s):  
Ruochen Zhang ◽  
Yuanyuan Zeng ◽  
Weijie Zhang ◽  
Yue Li ◽  
Jieqi Zhou ◽  
...  

Abstract High expression of CPNE1 is positively correlated with the occurrence, TNM stage, lymph node metastasis, and distant metastasis of non-small-cell lung cancer (NSCLC), suggesting that CPNE1 may be an effective target for the treatment of NSCLC. No direct role of post-translational modification of CPNE1 in NSCLC has been reported. This study confirms that CPNE1 is degraded by two pathways: the ubiquitin-proteasome pathway and the autophagy-lysosome pathway. CPNE1 binds with the ubiquitin molecule via its K157 residue. Moreover, we determine that the ubiquitin ligase NEDD4L can mediate the ubiquitination of CPNE1 and promote its degradation. In addition, we find that NEDD4L knockout promotes the proliferation and metastasis of NSCLC cells by regulating CPNE1. This study aims to further investigate the mechanism of CPNE1 ubiquitination in the occurrence and development of NSCLC and provide a new potential target for NSCLC treatment.

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Ruochen Zhang ◽  
Weijie Zhang ◽  
Yuanyuan Zeng ◽  
Yue Li ◽  
Jieqi Zhou ◽  
...  

AbstractOur previous studies revealed that oncogene CPNE1 is positively correlated with the occurrence, TNM stage, lymph node metastasis, and distant metastasis of non-small-cell lung cancer (NSCLC), and it could be regulated by micro RNAs. But no direct role of post-translational modification of CPNE1 in NSCLC has been reported. This study confirms that CPNE1 is degraded by two pathways: the ubiquitin-proteasome pathway and the autophagy-lysosome pathway. CPNE1 binds with the ubiquitin molecule via its K157 residue. Moreover, we determined that the ubiquitin ligase NEDD4L can mediate the ubiquitination of CPNE1 and promote its degradation. In addition, we find that NEDD4L knockdown promotes the proliferation and metastasis of NSCLC cells by regulating CPNE1 in vitro and vivo. This study aims to further investigate the mechanism of CPNE1 ubiquitination in the occurrence and development of NSCLC and provide a new potential target for NSCLC treatment.


2012 ◽  
Vol 66 (3) ◽  
pp. 221-227 ◽  
Author(s):  
Xueying Yang ◽  
Jing Di ◽  
Yang Zhang ◽  
Suning Zhang ◽  
Jibin Lu ◽  
...  

2018 ◽  
Vol 25 (19) ◽  
pp. 18385-18391 ◽  
Author(s):  
Chunhua Yan ◽  
Wei Zhang ◽  
Xiaodong Shi ◽  
Jiaolin Zheng ◽  
Xiaoming Jin ◽  
...  

Oncotarget ◽  
2017 ◽  
Vol 8 (58) ◽  
pp. 98148-98162 ◽  
Author(s):  
I-Lu Lai ◽  
Chin-An Yang ◽  
Pei-Chin Lin ◽  
Wen-Ling Chan ◽  
Ya-Ting Lee ◽  
...  

2020 ◽  
Author(s):  
Tengfei Chen ◽  
Yali Liu ◽  
Chang Li ◽  
Chun Xu ◽  
Cheng Ding ◽  
...  

Abstract Background: Non-small cell lung cancer (NSCLC) is the most malignant cancers worldwide, but the pathogenesis is not completely known. In this study, we explored the function and mechanism of exosomes transferring miR-3180-3p in NSCLC progression.Method: The expression of miR-3180-3p of NSCLC tissues and para-carcinoma tissues was from the GEO database (GEO: GSE53882). The exosomes derived from A549 cells were identified. The proliferation, migration and invasion were measured after treatment with exosomal miR-3180-3p or transfected by miR-3180-3p mimics. The relationship between miR-3180-3p and forkhead box P4 (FOXP4) was predicted by bioinformatics tool and measured dual-luciferase reporter gene assay and western blotting. At last, mouse xenograft model of NSCLC cells was established to verify the function of exosomal miR-3180-3p in vivo.Results: We found that miR-3180-3p decreased in both NSCLC cell lines and patient tissues. Overexpression of miR-3180-3p or treatment with exosomal miR-3180-3p significantly repressed the cell proliferation and metastasis in NSCLC cell lines. Subsequently, we found miR-3180-3p performed function by downregulating FOXP4 protein expression. Furthermore, the volume and weight of nude mice tumor which expressed exosomal miR-3180-3p was significantly reduced. Conclusion: Exosomal miR-3180-3p suppresses NSCLC progression by downregulating FOXP4 expression.


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