Inhibition of Nonsmall Cell Lung Cancer Cell Migration by Protein Arginine Methyltransferase 1-small Hairpin RNA Through Inhibiting Epithelial-mesenchymal Transition, Extracellular Matrix Degradation, and Src Phosphorylation In Vitro / 中华医学杂志(英文版)
Chinese Medical Journal
; (24): 1202-1208, 2015.
Article
de En
| WPRIM
| ID: wpr-350327
Bibliothèque responsable:
WPRO
ABSTRACT
<p><b>BACKGROUND</b>Protein arginine methyltransferases 1 (PRMT1) is over-expressed in a variety of cancers, including lung cancer, and is correlated with a poor prognosis of tumor development. This study aimed to investigate the role of PRMT1 in nonsmall cell lung cancer (NSCLC) migration in vitro.</p><p><b>METHODS</b>In this study, PRMT1 expression in the NSCLC cell line A549 was silenced using lentiviral vector-mediated short hairpin RNAs. Cell migration was measured using both scratch wound healing and transwell cell migration assays. The mRNA expression levels of matrix metalloproteinase 2 (MMP-2) and tissue inhibitor of metalloproteinase 1, 2 (TIMP1, 2) were measured using quantitative real-time reverse transcription-polymerase chain reaction. The expression levels of protein markers for epithelial-mesenchymal transition (EMT) (E-cadherin, N-cadherin), focal adhesion kinase (FAK), Src, AKT, and their corresponding phosphorylated states were detected by Western blot.</p><p><b>RESULTS</b>Cell migration was significantly inhibited in the PRMT1 silenced group compared to the control group. The mRNA expression of MMP-2 decreased while TIMP1 and TIMP2 increased significantly. E-cadherin mRNA expression also increased while N-cadherin decreased. Only phosphorylated Src levels decreased in the silenced group while FAK or AKT remained unchanged.</p><p><b>CONCLUSIONS</b>PRMT1-small hairpin RNA inhibits the migration abilities of NSCLC A549 cells by inhibiting EMT, extracellular matrix degradation, and Src phosphorylation in vitro.</p>
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Physiologie
/
Protein-arginine N-methyltransferases
/
Lignée cellulaire
/
Mouvement cellulaire
/
Technique de Western
/
Protéines de la matrice extracellulaire
/
Carcinome pulmonaire non à petites cellules
/
Petit ARN interférent
/
Transition épithélio-mésenchymateuse
/
Génétique
Limites du sujet:
Humans
langue:
En
Texte intégral:
Chinese Medical Journal
Année:
2015
Type:
Article