High expression of long non-coding RNA lncRNA-ATB is correlated with metastases and promotes cell migration and invasion in renal cell carcinoma.

Abstract

OBJECTIVE:

To investigate the expression pattern of a novel long non-coding ribonucleic acid activated by transforming growth factor β, long non-coding ribonucleic acid activated by transforming growth factor β, in renal cell carcinoma tissues among the patients with various clinicopathologic features and to detect the possible role of dysregulated long non-coding RNA-ATB in renal cell carcinoma.

METHODS:

The expression of long non-coding ribonucleic acid activated by transforming growth factor β in the renal cell carcinoma tissues and renal cancer cell lines was evaluated by quantitative real-time polymerase chain reaction. The association with clinicopathologic features was analyzed. The effects of long non-coding ribonucleic acid activated by transforming growth factor β on the renal cell carcinoma cell proliferation, apoptosis, migration, invasion and epithelial-to-mesenchymal transition were investigated by the loss-of-function approach.

RESULTS:

The expression of long non-coding ribonucleic acid activated by transforming growth factor β was higher in the renal cell carcinoma tissues and renal cancer cells than in the adjacent non-tumor tissues and normal human proximal tubule epithelial cells HK-2. In addition, the long non-coding ribonucleic acid activated by transforming growth factor β expression was significantly higher in the renal cell carcinoma patients with metastasis. The elevated expression of long non-coding ribonucleic acid activated by transforming growth factor β was associated with tumor stages, histological grade, vascular invasion, lymph node metastasis and distant metastasis. Notably, we found that long non-coding ribonucleic acid activated by transforming growth factor β knockdown could (i) inhibit cell proliferation; (ii) trigger apoptosis; (iii) reduce epithelial-to-mesenchymal transition program; (iv) suppress cell migration and invasion.

CONCLUSIONS:

Our data have shown that long non-coding ribonucleic acid activated by transforming growth factor β actively functions as a regulator of epithelial-to-mesenchymal transition during renal cell carcinoma metastasis, which suggests that long non-coding ribonucleic acid activated by transforming growth factor β may be a potential prognostic biomarker and therapeutic target for renal cell carcinoma.

• Authors: Jing Xiong, Ying Liu, Li Jiang, Yang Zeng, Wei Tang
• Journal: Japanese journal of clinical oncology (Jpn J Clin Oncol) Vol. 46 Issue 4 Pg. 378-84 (Apr 2016) ISSN: 1465-3621 [Electronic] England
• PMID: 26848077 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: © The Author 2016. Published by Oxford University Press. All rights reserved. For Permissions, please email: [email protected].

Chemical References

• RNA, Long Noncoding
• Transforming Growth Factor beta

Topics

• Carcinoma, Renal Cell (metabolism, pathology)
• Cell Movement
• Cell Proliferation
• Epithelial-Mesenchymal Transition
• Female
• Gene Expression Regulation, Neoplastic
• Humans
• Kidney Neoplasms (metabolism, pathology)
• Lymphatic Metastasis
• Male
• Middle Aged
• Neoplasm Invasiveness
• Prognosis
• RNA, Long Noncoding (metabolism)
• Real-Time Polymerase Chain Reaction
• Transforming Growth Factor beta (metabolism)
• Up-Regulation