التفاصيل البيبلوغرافية
| العنوان: |
Hippocampal miRNA-144 Modulates Depressive-Like Behaviors in Rats by Targeting PTP1B. |
| المؤلفون: |
Li, Yuhuan, Wang, Nina, Pan, Jie, Wang, Xinrui, Zhao, Yanling, Guo, Zongjun |
| المصدر: |
Neuropsychiatric Disease & Treatment; Feb2021, Vol. 17, p389-399, 11p |
| مصطلحات موضوعية: |
HIPPOCAMPUS (Brain), RATS, CELLULAR signal transduction, PROTEIN expression, BRAIN-derived neurotrophic factor |
| مستخلص: |
Background: Depression is the common mental disorder in the world. However, the pathophysiology mechanism underlying depression remains elusive. It has been reported that aberrant expression of miR-144 is closely related to depression. This study was to investigate whether and how miR-144 involves in depressive-like behaviors in a chronic unpredictable mild stress (CUMS) animal model. Methods: A rat model of CUMS was established, and qRT-PCR was performed to detect the expression of miR-144 in the hippocampus of a depressed rat. The lentiviral vector carried miR-144 (LV-miR-144) was injected into the hippocampus of the CUMS rat to investigate the effects of miR-144 on the behaviors and PTP1B/TrkB/BDNF signal transduction in the hippocampus of the rat. The interaction between miR-144 and PTP1B was investigated by biological analyses and dual-luciferase reporter assay. Results: The results showed that CUMS rats had typical depressive behaviors, and the expression of miR-144 in the hippocampus of CUMS rats was significantly lower than that of the control group. In addition, PTP1B protein expression was significantly up-regulated, while the expression of pTrkB and BDNF protein was significantly down-regulated in the hippocampus of CUMS rats. Moreover, PTP1B was a direct target of miR-144, and miR-144 could activate the downstream TrkB/BDNF signaling pathway by inhibiting the expression of PTP1B in primary hippocampus neurons. Conclusion: MiR-144 played an anti-depressive role in hippocampus dysfunction by inhibiting PTP1B and activating the TrkB/BDNF signaling pathway in the hippocampus of CUMS rats. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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