DANCR knockdown alleviates neuroinflammation and functional recovery after spinal cord injury via regulating the ACTN4 / STAT3 axis

IF 3.8 3区 生物学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY Archives of biochemistry and biophysics Pub Date : 2025-01-09 DOI:10.1016/j.abb.2025.110293
Bin Xia , Cheng Yu , Jin Liu , Jiezhao Lin , Jiao Lyu , Xin Wang , Lixin Zhu
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Abstract

Polarization of microglia following spinal cord injury (SCI) is a pivotal pathological process of secondary injury. Although differentiation antagonistic nonprotein coding RNA (DANCR) has been implicated in immune and inflammatory responses across various diseases, its role in SCI still unclear. This research aimed to clarify the underlying mechanisms of DANCR in SCI recovery by investigating its expression pattern in microglia. Our findings indicate that the DANCR level in microglia is increased after SCI and that its knockdown can promote microglial M2-type polarization; suppress inflammatory cytokines, oxidative stress, and neuronal apoptosis; and facilitate nerve regeneration as well as spinal cord functional recovery. Further investigations suggest that DANCR's effects are mediated through the ACTN4/STAT3 axis. These results provide potential targets for enhancing functional recovery following SCI.

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danr敲低通过调节ACTN4 / STAT3轴减轻脊髓损伤后神经炎症和功能恢复。
脊髓损伤后小胶质细胞的极化是继发性损伤的关键病理过程。尽管分化拮抗非蛋白编码RNA (DANCR)与多种疾病的免疫和炎症反应有关,但其在脊髓损伤中的作用尚不清楚。本研究旨在通过研究DANCR在小胶质细胞中的表达模式来阐明其在脊髓损伤恢复中的潜在机制。我们的研究结果表明,脊髓损伤后小胶质细胞中的DANCR水平升高,其下调可促进小胶质细胞m2型极化;抑制炎症细胞因子、氧化应激和神经元凋亡;促进神经再生和脊髓功能恢复。进一步的研究表明,DANCR的作用是通过ACTN4/STAT3轴介导的。这些结果为增强脊髓损伤后的功能恢复提供了潜在的靶点。
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4',6-diamidino-2-phenylindole(DAPI)
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来源期刊
Archives of biochemistry and biophysics
Archives of biochemistry and biophysics 生物-生化与分子生物学
CiteScore
7.40
自引率
0.00%
发文量
245
审稿时长
26 days
期刊介绍: Archives of Biochemistry and Biophysics publishes quality original articles and reviews in the developing areas of biochemistry and biophysics. Research Areas Include: • Enzyme and protein structure, function, regulation. Folding, turnover, and post-translational processing • Biological oxidations, free radical reactions, redox signaling, oxygenases, P450 reactions • Signal transduction, receptors, membrane transport, intracellular signals. Cellular and integrated metabolism.
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