基础研究

miR-615-3p 靶向 SESN2 抑制神经元线粒体自噬

来源:Frontiers in molecular neuroscience · PMID 42964017 · DOI 10.3389/fnmol.2026.1873619 · 来源:IMA 知识库《文献层·文献监控卡片》2026-11-01 期 · 全文级(file_id dlMXdlgtPZzo,实际下载核验) · 全文已获取并通过归属校验

时间标签:数据日期 2026-11-01 · 生成时间 2026-11-01 05:30(Asia/Shanghai)| 检索窗口 PubMed edat 2026/10/31–2026/11/01 | 情报发生日期 2026-11-01

研究问题

Through molecular biology techniques and AD cellular models, we aimed to elucidate: (1) the regulatory effect of miR-615-3p overexpression or inhibition on neuronal mitophagy; (2) whether miR-615-3p negatively regulates SESN2 expression to…;However, its underlying molecular mechanisms remain to be further elucidated.

方法

Data were analyzed using FlowJo software (Becton, Dickinson and Company). 2.3 Immunofluorescence (ICC) staining HT22 cells were fixed with 4% paraformaldehyde for 15 min, permeabilized with 0.1% Triton X-100, and blocked with 5% bovine…;The cells were then incubated overnight at 4 °C with an anti-SESN2 primary antibody (Proteintech, 10795-1-AP), followed by incubation with a FITC-conjugated secondary antibody for 1 h at room temperature.;The Dual-Luciferase ® Reporter kit was used to measure luciferase activity. 2.11 Statistical analysis Data, expressed as means ± standard error, were repeated ≥ three times independently and analyzed using GraphPad Prism software (version…

核心结论

Consistently, immunofluorescence staining showed that the SESN2 signal was significantly increased in the SESN2-OE group and markedly decreased in the SESN2-KD group compared with the corresponding NC groups ( p < 0.01 or p < 0.001, ).;Next, it was observed that the relative SESN2 mRNA and protein expressions were significantly decreased in the model group, and the overexpression of miR-615-3p would downregulate the SESN2 levels ( , ).;The ELISA analysis in showed that the increased levels of IL-1β and IL-18 in model cells were significantly enhanced by SESN2 knockout but significantly suppressed by overexpressing SESN2 (all p < 0.01).;In the control and model groups, BafA1 treatment significantly further increased LC3-II and p62 levels, whereas in the miR-615-3p-OE group, BafA1 failed to further accumulate LC3-II and p62 (all p > 0.05, ).

局限

These findings support the potential of the SESN2-AMPK axis as a therapeutic target for AD. 4.4 Research limitations and future prospects Some limitations exist in this study.;Further in vivo studies are warranted to validate these observations and explore the translational implications of this regulatory network in AD treatment.

对本项目的价值

参考性证据:线粒体是衰老干预的共同下游效应器,可用于跨器官效应的统一读数。 | 价值分 2.7/5(★★★☆☆)

全文来源

PubMed PMC JATS 全文(正文 29,724 字符,已过 DOI 逐字 + 题名指纹双重归属校验)

原文题录

  • 英文标题:miR-615-3p targets SESN2 to inhibit neuronal mitophagy in an in vitro Alzheimer's disease model by regulating the AMPK/ULK1 axis.
  • 期刊与标识:Frontiers in molecular neuroscience · PMID 42964017 · DOI 10.3389/fnmol.2026.1873619

B 级证据分级:B 级(同行评议临床前研究,主要为动物模型)

本文核心结论来自动物模型或体外细胞学,属临床前证据,不能外推至人体。「延长健康寿命」「改善功能」等表述在小鼠中的意义,与人类临床结局之间仍有距离。

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