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LncRNA ZFAS1/miR-589 regulates the PTEN/PI3K/AKT signal pathway in the proliferation, invasion and migration of breast cancer cells

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Abstract

Breast cancer (BC) is a common clinical disease and the second leading cause of cancer death in women. Long noncoding RNA (lncRNA) and microRNA (miRNA) are reported to be involved in the development of BC. The present study aimed to investigate whether LncRNA ZFAS1 could regulate the proliferation, invasion and migration of breast cancer cells by targeting miR-589 through PTEN/PI3K/AKT signal pathway. The expression of ZFAS1 and miR-589 in BC cells and transfection effects were determined by RT-qPCR analysis. The abilities of proliferation, colony formation, invasion and migration of breast cancer cells were analyzed by CCK-8 assay, colony formation assay, transwell assay and wound healing assay respectively. The expression of MMP2, MMP9, Bcl2, Bax, cleaved caspase3, PTEN, p-PI3K, p-AKT, PI3K and AKT was detected by Western blot. The flow cytometry analysis was used to detect cell apoptosis. As a result, ZFAS1 expression was increased and miR-589 expression was decreased in BC cells. And, miR-589 was demonstrated to be a target of ZFAS1. ZFAS1 overexpression could inhibit the proliferation, colony formation, invasion and migration of BC cells while miR-589 overexpression could reverse the changes. In addition, ZFAS1 overexpression suppressed the expression of PI3K/AKT signal pathway by activating the PTEN expression while miR-589 overexpression could reverse the changes. Moreover, PTEN is one of the gene targets of miR-589. In conclusion, this study indicated that ZFAS1 inhibited the proliferation, invasion and migration of breast cancer cells by targeting miR-589 through regulating the PTEN/PI3K/AKT signal pathway.

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Acknowledgements

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Funding

Science and Technology Development Fund Project of Bengbu Medical College (BYKF1866). National Natural Science Foundation Item (81572992).

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Authors and Affiliations

  1. Department of Medical Oncology, First Affiliated Hospital of Soochow University, Suzhou, 215006, Jiangsu, China

    Song Zhang & Min Tao

  2. Department of Clinical Laboratory Science, First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, Anhui, China

    Jin Wang

  3. Department of Surgical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, Anhui, China

    Song Zhang & Tingjing Yao

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  1. Song Zhang
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  2. Jin Wang
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  3. Tingjing Yao
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  4. Min Tao
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Correspondence to Min Tao.

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Zhang, S., Wang, J., Yao, T. et al. LncRNA ZFAS1/miR-589 regulates the PTEN/PI3K/AKT signal pathway in the proliferation, invasion and migration of breast cancer cells. Cytotechnology 72, 415–425 (2020). https://doi.org/10.1007/s10616-020-00388-6

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  • DOI: https://doi.org/10.1007/s10616-020-00388-6

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