LINC00858 promotes retinoblastoma cell proliferation, migration and invasion by inhibiting miR‑3182

Wang,Qi; Zhu,Yanni; Zuo,Guojin; Chen,Xiaoming; Cheng,Jinkui; Zhang,Shu

doi:10.3892/etm.2019.8294

LINC00858 promotes retinoblastoma cell proliferation, migration and invasion by inhibiting miR‑3182

Authors:
- Qi Wang
- Yanni Zhu
- Guojin Zuo
- Xiaoming Chen
- Jinkui Cheng
- Shu Zhang
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Affiliations: Department of Ophthalmology, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei 434000, P.R. China
Published online on: December 5, 2019 https://doi.org/10.3892/etm.2019.8294
Pages: 999-1005
Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The aim of the present study was to determine the role of long intergenic non‑protein coding RNA 858 (LINC00858) in retinoblastoma (RB) and investigate the underlying molecular mechanisms. RB tissues and paracancerous tissues of 27 RB cases were obtained. RB cell lines (SO‑RB50, Y79, HXO‑RB44 and WERI‑Rb1) and a normal retinal epithelial cell line (ARPE‑19) were cultured for in vitro experiments. Batches of SO‑RB50 and Y79 cells were assigned to groups transfected with small interfering RNA targeting LINC00858 (si‑LINC00858 group), microRNA (miR)‑3182 mimics or inhibitor, or the respective controls. A Cell Counting Kit‑8 and Transwell assays were performed to assess the effect of the transfections on the proliferation, migration and invasion of SO‑RB50 and Y79 cells. A luciferase reporter assay was performed using SO‑RB50 cells to demonstrate the direct binding of LINC00858 and miR‑3182. Reverse transcription‑quantitative PCR was employed to detect LINC00858 and miR‑3182 expression. Pearson correlation analysis was used to assess the correlation between the expression of LINC00858 and miR‑3182. The results indicated that RB tissues and cells exhibited aberrantly elevated LINC00858 expression (P<0.05). Compared with those in the control‑transfected group, SO‑RB50 and Y79 cells of the si‑LINC00858 group had a lower cell proliferation, as well as a lower number of migrated and invaded cells (all P<0.05). miR‑3182 was proven to be a target gene of LINC00858, to be abnormally downregulated in RB tissues and cells (P<0.05) and to be negatively correlated with LINC00858 expression. Compared with those in the si‑LINC00858 + inhibitor‑negative control group, SO‑RB50 and Y79 cells of the si‑LINC00858 + miR‑3182 inhibitor group exhibited a significantly higher relative proliferation, migration and invasion (all P<0.05). In conclusion, LINC00858 promoted RB cell proliferation, migration and invasion, at least partially by inhibiting miR‑3182.

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