Paclitaxel May Inhibit Epithelial-Mesenchymal Transition Properties of Triple-negative Breast Cancer Cell Line via Altering the Expression of EMT-promoting and – inhibiting MicroRNAs

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Haghnavaz Navideh; Asghari Faezeh; Shekari Najibeh; SHANEHBANDI DARIUSH; Javadian Mahsa; MOHAMMADI ALI; BARADARAN BEHZAD; KAZEMI TOHID

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Journal: MIDDLE EAST JOURNAL OF CANCER Year:2020 | Volume:11 | Issue:1 Page(s): 42-49

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Title

Paclitaxel May Inhibit Epithelial-Mesenchymal Transition Properties of Triple-negative Breast Cancer Cell Line via Altering the Expression of EMT-promoting and – inhibiting MicroRNAs

Author(s)

Keywords

Breast cancer

MiR-199a-5p

MiR-10b

Paclitaxel

Vimentin

MMP-9

Abstract

Background: Abnormal expressions of microRNAs are related to various cancers such as Breast cancer for which Paclitaxel is widely used as a chemotherapeutic agent. We aimed to investigate the effect of Paclitaxel treatment on the expression level of MiR-199a-5p and MiR-10b, involved in epithelial-mesenchymal transition (EMT) process in Breast cancer cell lines. Methods: Human Breast cancer cell lines BT-474, SKBR-3, MDA-MB-231, and MCF-7 were cultured and MTT assay was used to determine IC50 of Paclitaxel. RNA was extracted, cDNA was synthesized, and the expression level of miRNAs and genes was quantitatively determined using real-time PCR. Results: After treatment with Paclitaxel, the expression level of MiR-199a-5p significantly decreased in MCF-7 and SKBR-3 cell lines, while it increased in MDA-MB-231 and BT-474. The expression level of MiR-10b was also significantly reduced in MCF-7, MDA-MB-231, and SKBR-3 and increased in BT-474 cell lines following treatment with Paclitaxel. Our results further indicated that Paclitaxel reduced the expression level of Vimentin and MMP-9 in MDA-MB-231 cell line. Conclusion: Our findings revealed the increased expression of EMT-inhibitor MiR-199a-5p and the decreased expression of metastamir MiR-10b after treatment of MDA-MB-231 metastatic Breast cancer cell line. Reduced expressions of Vimentin and MMP-9 were also observed, corroborating the inhibition of metastasis markers in this type of Breast cancer. The therapeutic effect of Paclitaxel may in part be due to the change in the balance of EMT-promoting and EMT-inhibiting miRNAs.

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APA: Copy

Haghnavaz, Navideh, Asghari, Faezeh, Shekari, Najibeh, SHANEHBANDI, DARIUSH, Javadian, Mahsa, MOHAMMADI, ALI, BARADARAN, BEHZAD, & KAZEMI, TOHID. (2020). Paclitaxel May Inhibit Epithelial-Mesenchymal Transition Properties of Triple-negative Breast Cancer Cell Line via Altering the Expression of EMT-promoting and – inhibiting MicroRNAs. MIDDLE EAST JOURNAL OF CANCER, 11(1), 42-49. SID. https://sid.ir/paper/321325/en

Vancouver: Copy

Haghnavaz Navideh, Asghari Faezeh, Shekari Najibeh, SHANEHBANDI DARIUSH, Javadian Mahsa, MOHAMMADI ALI, BARADARAN BEHZAD, KAZEMI TOHID. Paclitaxel May Inhibit Epithelial-Mesenchymal Transition Properties of Triple-negative Breast Cancer Cell Line via Altering the Expression of EMT-promoting and – inhibiting MicroRNAs. MIDDLE EAST JOURNAL OF CANCER[Internet]. 2020;11(1):42-49. Available from: https://sid.ir/paper/321325/en

IEEE: Copy

Navideh Haghnavaz, Faezeh Asghari, Najibeh Shekari, DARIUSH SHANEHBANDI, Mahsa Javadian, ALI MOHAMMADI, BEHZAD BARADARAN, and TOHID KAZEMI, “Paclitaxel May Inhibit Epithelial-Mesenchymal Transition Properties of Triple-negative Breast Cancer Cell Line via Altering the Expression of EMT-promoting and – inhibiting MicroRNAs,” MIDDLE EAST JOURNAL OF CANCER, vol. 11, no. 1, pp. 42–49, 2020, [Online]. Available: https://sid.ir/paper/321325/en

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