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Ding M, Zhan H, Liao X, Li A, Zhong Y, Gao Q, Liu Y, Huang W, Cai Z. Enhancer RNA - P2RY2e induced by estrogen promotes malignant behaviors of bladder cancer. Int J Biol Sci 2018; 14:1268-1276. [PMID: 30123075 PMCID: PMC6097482 DOI: 10.7150/ijbs.27151] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/23/2018] [Indexed: 12/26/2022] Open
Abstract
Enhancers are transcriptional regulatory elements that increase target gene expression. It has reported that enhancers could universally transcribe into enhancer RNAs (eRNAs) with stimulation. Increasing evidence showed eRNAs participated in various disease processes including malignant tumors. P2RY2 enhancer RNA (P2RY2e) is an estrogen-responsive eRNA and involved in the development of breast cancer. However, the relationship between P2RY2e and bladder cancer (BCa) is unclear. In the study, we discovered that P2RY2e was upregulated in BCa tissues and estrogen-treated cells. Estrogen promoted the malignant abilities of BCa cells. P2RY2e knockdown by CRISPR-Cas13a inhibit the cell multiplication, invasion and migration. Additionally, the cell apoptosis was facilitated. What's more, downregulation of P2RY2e could weaken the cancer-promoting effects of estrogen on BCa. Our study revealed that P2RY2e played a carcinogenic role in BCa and estrogen might promote the initiation of BCa by inducing P2RY2e. We provide a potential therapeutic target for BCa and a new perspective for the tumorigenesis of bladder cancer.
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Affiliation(s)
- Mengting Ding
- Clinical Medicine College of Anhui Medical University, Department of Urology, Shenzhen Second People's Hospital, Shenzhen 518000, Guangdong, China.,Anhui Medical University, Hefei 230032, Anhui Province, China
| | - Hengji Zhan
- Department of Urology, Shenzhen Second People's Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen 518000, China
| | - Xinhui Liao
- Department of Urology, Shenzhen Second People's Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen 518000, China
| | - Aolin Li
- Clinical Medicine College of Anhui Medical University, Department of Urology, Shenzhen Second People's Hospital, Shenzhen 518000, Guangdong, China
| | - Yucheng Zhong
- Department of Urology, Shenzhen Second People's Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen 518000, China
| | - Qunjun Gao
- Department of Urology, Shenzhen Second People's Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen 518000, China
| | - Yuchen Liu
- Department of Urology, Shenzhen Second People's Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen 518000, China
| | - Weiren Huang
- Department of Urology, Shenzhen Second People's Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen 518000, China
| | - Zhiming Cai
- Department of Urology, Shenzhen Second People's Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen 518000, China
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