MiR-1284 enhances sensitivity of cervical cancer cells to cisplatin via downregulating HMGB1 - 20/09/18
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Graphical abstract |
Highlights |
• | miR-1284 is downregulated in CC tissues and cell lines. |
• | Upregulation of miR-1284 suppressed CC progression and enhanced chemosensitivity of CC cells. |
• | HMGB1 is a tumor promoter in cervical cancer. |
• | HMGB1 is negatively regulated by miR-1284. |
• | HMGB1 can reverse the effects of miR-1284 on the progression and chemosensitivity of CC cells. |
Abstract |
Background |
Chemotherapy is one of the commonest therapeutic method for cervical cancer. There are some common chemotherapy drugs, such as cisplatin, docetaxel, paclitaxel and selenium nanoparticle. microRNAs (miRNAs) have been verified to be regulators in various human cancers. This study aims to investigate the effects of miR-1284 on the cisplatin sensitivity of cervical cancer cells.
Methods |
The levels of miR-1284 in different tissues and cell lines were detected through using qRT-PCR analysis. Kaplan Meier analysis was utilized to analyze the influence of miR-1284 expression on the overall survival rate of cervical cancer patients. The biological effects of miR-1284 on the progression and chemosensitivity of cervical cancer were tested through conducting functional assays. Mechanism investigations were used to prove the binding relation between miR-1284 and HMGB1. Rescue assays were applied to demonstrate the effects of miR-1284-HMGB1 axis on chemosensitivity of cervical cancer cells.
Results |
miR-1284 was down-expressed in cervical cancer tissues and cell lines. Patients with low level of miR-1284 had low overall survival rate. Upregulation of miR-1284 suppressed proliferation and invasion, while promoted apoptosis. Moreover, upregulated miR-1284 enhanced sensitivity of cervical cancer cells to cisplatin. HMGB1 was a target gene of miR-1284. HMGB1 reversed the effects of miR-1284 on the progression and chemosensitivity of cervical cancer cells.
Conclusion |
miR-1284 enhances sensitivity of cervical cancer cells to cisplatin via targeting HMGB1.
El texto completo de este artículo está disponible en PDF.Keywords : miR-1284, HMGB1, Cisplatin, Cervical cancer
Esquema
Vol 107
P. 997-1003 - novembre 2018 Regresar al número
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