lncRNA PVT1 promotes the migration of gastric cancer by functioning as ceRNA of miR-30a and regulating Snail.

Abstract

Although the incidence and mortality of gastric cancer (GC) are slowly decreasing, the overall prognosis of GC patients with distal metastasis remains dismal. Long non-coding RNA PVT1 has been verified to function as a tumor promoter in several types of cancer. However, the role of PVT1 in GC metastasis remains obscure. Herein, we found that PVT1 was highly expressed in GC tissues and high PVT1 level was associated with tumor stage, lymph node metastasis, and poor prognosis. Overexpression of PVT1 significantly elevated epithelial-to-mesenchymal transition (EMT) marker (N-cadherin, ZEB1, and ZEB2) levels and promoted GC cell EMT process and tumor metastasis in vitro and in vivo. Mechanistically, Snail was identified as a direct target of miR-30a. PVT1 could bind with miR-30a and increase the expression of Snail by acting as a competing endogenous RNA, whereas re-expression of miR-30a in GC cells rescued the EMT markers, decreased Snail level, and inhibited GC cell migration. Taken together, these findings provide a new light on PVT1 in the pathogenesis and development of GC and an important implication for future therapy of the GC.

• Authors: Lina Wang, Bin Xiao, Ting Yu, Li Gong, Yu Wang, Xiaokai Zhang, Quanming Zou, Qianfei Zuo
• Journal: Journal of cellular physiology (J Cell Physiol) Vol. 236 Issue 1 Pg. 536-548 (01 2021) ISSN: 1097-4652 [Electronic] United States
• PMID: 32557622 (Publication Type: Journal Article, Retracted Publication)
• Copyright: © 2020 Wiley Periodicals LLC.

Chemical References

• Biomarkers, Tumor
• Cadherins
• MIRN30a microRNA, human
• MicroRNAs
• PVT1 long-non-coding RNA, human
• RNA, Long Noncoding

Topics

• Biomarkers, Tumor (genetics)
• Cadherins (genetics)
• Cell Line
• Cell Line, Tumor
• Cell Movement (genetics)
• Cell Proliferation (genetics)
• Down-Regulation (genetics)
• Epithelial-Mesenchymal Transition (genetics)
• Gene Expression Regulation, Neoplastic (genetics)
• HEK293 Cells
• Humans
• Lymphatic Metastasis (genetics, pathology)
• MicroRNAs (genetics)
• Prognosis
• RNA, Long Noncoding (genetics)
• Stomach Neoplasms (genetics, pathology)