Overexpression of SNORA21 suppresses tumorgenesis of gallbladder cancer in vitro and in vivo - 18/09/19
, Yang Zhou a , Anxing Ge b , Li Chang a , Haiyan Shi a , Yang Fu c , Qiong Luo a, ⁎ Bienvenue sur EM-consulte, la référence des professionnels de santé.
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Graphical abstract |
Highlights |
• | Overexpression of SNORA21 significantly inhibited the proliferation of GBC cells. |
• | Overexpression of SNORA21 significantly inhibited the migration and invasion of GBC cells. |
• | Overexpression of SNORA21 significantly induced the apoptosis of GBC cells. |
• | Overexpression of SNORA21 significantly inhibited the tumorigenesis of GBC in vivo. |
Abstract |
Background |
Gallbladder cancer (GBC) ranks fifth in the most common malignancy of the gastrointestinal tract worldwide. It is reported many small nucleolar RNAs (SNORNs) could regulate the progression of GBC. To identify potential therapeutic targets for GBC, we conducted microarray analysis in GBC tissues and adjacent normal tissues. We found that SNORA21 was downregulated most in gallbladder tumor samples. Therefore, this research aimed to investigate the role of SNORA21 during the tumorigenesis of GBC.
Methods |
The differential expression of SNORNs between GBC tissues and para-carcinoma tissues were examined by microarray analysis and that were confirmed by qRT-PCR. Cell proliferation was tested by CCK-8 and immunofluorescence. Cell apoptosis and cell cycle in GBC were detected by flow cytometry. Expression of proteins in GBC cells was measured by Western-blot. Transwell assay was used for testing the cell migration and invasion. Xenograft tumor model was established to verify the effect of SNORA21 overexpression on GBC in vivo.
Results |
The results revealed that SNORA21 overexpression inhibited the proliferation, migration and invasion of GBC cells. Moreover, overexpression of SNORA21 significantly increased the expression of E-cadherin and decreased the levels of N-cadherin and vimentin. Meanwhile, overexpression of SNORA21 significantly induced apoptosis and G1 arrest of GBC cells. Finally, SNORA21 overexpression significantly suppressed the growth of gallbladder tumors in vivo.
Conclusion |
Overexpression of SNORA21 significantly suppressed the tumorigenesis of GBC in vitro and in vivo, which may serve as a potential novel target for the treatment of GBC.
Le texte complet de cet article est disponible en PDF.Keywords : Gallbladder cancer, SNORA21, Cell apoptosis, Cell cycle
Plan
Vol 118
Article 109266- octobre 2019 Retour au numéro
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