miR-504 regulates proteasome activator and inhibits the proliferation and migration of breast cancer cell line MCF-7

Autor: YANG Liangquan, YU Miao, JIANG Qian, ZHANG Minghui, YANG Haisong
Jazyk: čínština
Rok vydání: 2023
Předmět:
Zdroj: Jichu yixue yu linchuang, Vol 43, Iss 1, Pp 95-101 (2023)
Druh dokumentu: article
ISSN: 1001-6325
DOI: 10.16352/j.issn.1001-6325.2023.01.0095
Popis: Objective To observe the regulation of miR-504 in mouse models and the biological behavior of breast cancer cells, find the key target genes of miR-504 in the regulation process, and explore the working mechanism of miR-504 in breast cancer. Methods A mouse model of breast cancer was established and the effect of miR-504 on tumor growth was observed. Target genes of miR-504 were screened by Target Scaning and confirmed by double luciferase reporter gene assay. RT-qPCR and Western blot were used to detect proteasome activator complex subunit 3(PSME3) expression in breast cancer and adjacent tissues. The effects of miR-504 and PSME3 on proliferation, cycle and migration of human breast cancer cell line MCF-7 were determined by CCK8 assay, flow cytometry and Transwell assay. Results It was found that miR-504 inhibited tumor growth in nude mouse xenograft model of breast cancer(PPSME3 was a target gene of miR-504, and its expression in breast cancer tissues was significantly increased. Up-regulation of miR-504 expression could inhibit the expression of PSME3 (PPConclusions miR-504 may play an anti-cancer role in breast cancer by targeting PSME3 regulation.
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