LncRNA DANCR regulates lymphatic metastasis of bladder cancer via the miR-335/VEGF-C axis
| Autor: | Shi Yunqiang, Yang Meng, Yiming Zhong, Jian Li, Ping Qinrong, Li Hui, Xiaofang Bi, Chunhui Wang |
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| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
Bladder cancer medicine.diagnostic_test Urology Cancer Transfection Biology urologic and male genital diseases medicine.disease Endothelial stem cell 03 medical and health sciences 030104 developmental biology 0302 clinical medicine Reproductive Medicine Western blot Cell culture 030220 oncology & carcinogenesis microRNA medicine Cancer research Gene silencing Original Article |
| Zdroj: | Transl Androl Urol |
| ISSN: | 2223-4691 2223-4683 |
| DOI: | 10.21037/tau-21-226 |
| Popis: | Background Substantial evidence indicate that long non-coding RNA (lncRNA) and microRNA (miRNA) act as key role in bladder cancer. Differentiation antagonistic ncRNA (DANCR) could be used as a biomarker in the occurrence and development of cancer. This study aims to explore the mechanism of DANCR/miR-335/VEGF-C axis affecting lymphatic metastasis of bladder cancer. Methods qRT-PCR detects the expression of DANCR in bladder cancer cell lines (SW780, 5637, T24, UM-UC-3) and normal bladder cell lines (SV-HUC-1), and selects T24 cell lines for subsequent experiments. The expression levels of DANCR, miR-335 and VEGF were measured by qRT-PCR, and the dual luciferase reporter gene verified the targeted regulation of DANCR on miR-335 and miR-335 on VEGF. CCK-8, Transwell and Wound healing assay detect the proliferation, invasion and migration ability of bladder cancer cells, Endothelial cell adhesion assay and Western blot further prove the lymphatic metastasis of bladder cancer. Results In this study, DANCR was highly expressed in bladder cancer cell lines. Transfection of si-DANCR significantly inhibits the proliferation, migration, invasion and lymphatic metastasis of bladder cancer cells. Dual luciferase assay confirmed that DANCR targets miR-335/VEGF-C. Transfection of miR-335 mimic promotes the proliferation, migration, invasion and lymphatic metastasis of bladder cancer cells, overexpression of DANCR eliminates the promotion of miR-335 mimic on bladder cancer cells. Further experiments proved that inhibition of miR-335 and overexpression of VEGF-C can reverse the inhibitory effect of silencing DANCR on bladder cancer cells. Conclusions In bladder cancer, DARCR plays an important role, which regulates the proliferation, migration, invasion and lymphatic metastasis of bladder cancer cells through the miR-335/VEGF-C molecular axis. |
| Databáze: | OpenAIRE |
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