个人识别码1
褪黑素
细胞凋亡
流式细胞术
活力测定
癌症研究
体内
免疫印迹
细胞生长
化学
分子生物学
细胞培养
生物
细胞生物学
基因
磷酸化
生物化学
内分泌学
丝氨酸
遗传学
生物技术
作者
Lifa Huang,Zhaoxian Yan,Xin Zhang,Lin Hua
标识
DOI:10.2174/1567202619666220406084947
摘要
Objectives: Melatonin (MT) is a pineal hormone with antineoplastic potential. This study aims to explore the therapeutic potential and mechanism of MT on glioblastoma (GBM). Methods: A human GBM cell line, LN229, was used to evaluate the function of MT. Cell viability, apoptosis, and migration were detected by CCK-8, flow cytometry, and transwell assays, respectively. The mRNA and protein expressions of specific genes were measured by qRT-PCR and western blot, respectively. The regulatory relationship between miR-16-5p and PIM1 was validated by dual luciferase reporter gene assay. A mouse xenograft model was established to prove the anti-tumor effect and related mechanisms of MT in vivo. Results: MT inhibited the viability and migration and promoted the apoptosis of LN229 cells in a dose-dependent manner. MiR-16-5p was dose-dependently up-regulated by MT in LN229 cells, negatively regulating its target PIM1. MiR-16-5p inhibitor eliminated the anti-tumor effect of MT in LN229 cells, while si-PIM1 reversed the effect of miR-16-5p inhibitor in MT-treated cells. MT inhibited the tumor growth in vivo and MT-induced PIM1 down-regulation was reversed by miR- 16-5p inhibition in tumor tissues. Conclusions: MT inhibits the malignant progression of GBM via regulating miR-16-5p-mediated PIM1.
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