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General Physiology and Biophysics Vol.39, No.1, p.59–67, 2020 |
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Title: Long non-coding RNA MT1JP exerts anti-cancer effects in breast cancer cells by regulating miR-92-3p | ||
Author: Haiming Wu, Sa Li | ||
Abstract: MT1JP is a LncRNA that is reportedly involved in gastric cancer development, but a biological role and mechanism for MT1JP in breast cancer is unknown. Quantitative RT-PCR was performed to detect the level of MT1JP and miR-92a-3p, and Western blotting assays ware performed to measure the expression of CDK2, cyclinE1, P21, CD151, CD147, MMP2 and MMP9 in breast cells. Subsequently, cell viability was analyzed with CCK-8 assay. Cell migration and invasion were analyzed with Transwell and Scratch Test, respectively. The results demonstrated that MT1JP was significantly down-regulated in breast cells. Additionally, we found that overexpression of MT1JP in breast cancer cells significantly inhibited cell proliferation, migration and invasion, and regulate the expression of CDK2, cyclinE1 and P21. We then investigated a possible mechanism for these results, MT1JP significantly inhibited CD151, CD147, MMP2 and MMP9 protein expression in breast cancer cells. Moreover, we found that MT1JP binds to and negatively regulates miR-92-3p, which is known to be an oncogene in some human cancers. Our data indicate that MT1JP functions as an anti-tumor LncRNA and downregulates miR-92-3p, CD151 and CD147, and may serve as a novel diagnostic and therapeutic marker in breast cancer. |
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Keywords: MT1JP, Breast cancer, Proliferation, Migration, Invasion | ||
Published online: 01-Feb-2020 | ||
Year: 2020, Volume: 39, Issue: 1 | Page From: 59, Page To: 67 | |
doi:10.4149/gpb_2019039 |
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