Long noncoding RNA NORAD regulates cancer cell proliferation and migration in human osteosarcoma by endogenously competing with miR‐199a‐3p

IUBMB Life ◽  
2019 ◽  
Vol 71 (10) ◽  
pp. 1482-1491 ◽  
Author(s):  
Xuming Wang ◽  
Jilong Zou ◽  
Hongjun Chen ◽  
Peng Zhang ◽  
Zhiyuan Lu ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Cancer Cell ◽  
Long Noncoding Rna ◽  
Noncoding Rna ◽  
Cancer Cell Proliferation ◽  
Human Osteosarcoma ◽  
Cell Proliferation And Migration ◽  
And Migration ◽  
Proliferation And Migration

ARFGAP3 an androgen target gene promotes prostate cancer cell proliferation and migration.

2020 ◽  
Author(s):  
Lungwani Muungo
Keyword(s):  
Cell Proliferation ◽  
Cancer Cell ◽  
Cell Biology ◽  
Adaptor Protein ◽  
Cancer Cell Proliferation ◽  
Lncap Cells ◽  
Gtpase Activating Protein ◽  
Cell Proliferation And Migration ◽  
And Migration ◽  
Proliferation And Migration

ADP ribosylation factor GTPase-activating protein 3 (ARFGAP3) is a GTPase-activating protein that associates with the Golgiapparatus and regulates the vesicular trafficking pathway. In the present study, we examined the contribution of ARFGAP3 toprostate cancer cell biology. We showed that ARFGAP3 expression was induced by 100 nM of dihydrotestosterone (DHT) atboth the mRNA and protein levels in androgen-sensitive LNCaP cells. We generated stable transfectants of LNCaP cells withFLAG-tagged ARFGAP3 or a control empty vector and showed that ARFGAP3 overexpression promoted cell proliferation andmigration compared with control cells. We found that ARFGAP3 interacted with paxillin, a focal adhesion adaptor protein thatis important for cell mobility and migration. Small interfering RNA (siRNA)-mediated knockdown of ARFGAP3 showed thatARFGAP3 siRNA markedly reduced LNCaP cell growth. Androgen receptor (AR)-dependent transactivation activity on prostatespecificantigen (PSA) enhancer was synergistically promoted by exogenous ARFGAP3 and paxillin expression, as shown byluciferase assay in LNCaP cells. Thus, our results suggest that ARFGAP3 is a novel androgen-regulated gene that can promoteprostate cancer cell proliferation and migration in collaboration with paxillin.

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