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Neuroprotection by Nrf2 via modulating microglial phenotype and phagocytosis after intracerebral hemorrhage.

作者信息

Liang Chuntian, Liu Lirong, Bao Shuangjin, Yao Zhenjia, Bai Qinqin, Fu Pengcheng, Liu Xiangyu, Zhang John H, Wang Gaiqing

机构信息

Department of Neurology, Shanxi Medical University, Taiyuan 030000, China.

People's Hospital of Yaodu District, Linfen 041000, China.

出版信息

Heliyon. 2023 Feb 16;9(2):e13777. doi: 10.1016/j.heliyon.2023.e13777. eCollection 2023 Feb.


DOI:10.1016/j.heliyon.2023.e13777
PMID:36852060
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9957781/
Abstract

Activated microglia are divided into pro-inflammatory and anti-inflammatory functional states. In anti-inflammatory state, activated microglia contribute to phagocytosis, neural repair and anti-inflammation. Nrf2 as a major endogenous regulator in hematoma clearance after intracerebral hemorrhage (ICH) has received much attention. This study aims to investigate the mechanism underlying Nrf2-mediated regulation of microglial phenotype and phagocytosis in hematoma clearance after ICH. In vitro experiments, BV-2 cells were assigned to normal group and administration group (Nrf2-siRNA, Nrf2 agonists Monascin and Xuezhikang). In vivo experiments, mice were divided into 5 groups: sham, ICH + vehicle, ICH + Nrf2-/-, ICH + Monascin and ICH + Xuezhikang. In vitro and in vivo, 72 h after administration of Monascin and Xuezhikang, the expression of Nrf2, inflammatory-associated factors such as Trem1, TNF-α and CD80, anti-inflammatory, neural repair and phagocytic associated factors such as Trem2, CD206 and BDNF were analyzed by the Western blot method. In vitro, fluorescent latex beads or erythrocytes were uptaken by BV-2 cells in order to study microglial phagocytic ability. In vivo, hemoglobin levels reflect the hematoma volume. In this study, Nrf2 agonists (Monascin and Xuezhikang) upregulated the expression of Trem2, CD206 and BDNF while decreased the expression of Trem1, TNF-α and CD80 both in vivo and in vitro. At the same time, after Monascin and Xuezhikang treatment, the phagocytic capacity of microglia increased in vitro, neurological deficits improved and hematoma volume lessened in vivo. These results were reversed in the Nrf2-siRNA or the Nrf2-/- mice. All these results indicated that Nrf2 enhanced hematoma clearance and neural repair, improved neurological outcomes through enhancing microglial phagocytosis and alleviating neuroinflammation.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/ef5197f5108a/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/77ab607a186c/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/f1aac509551a/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/5140b6587bff/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/4981c69249ce/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/4c0ed9b6e699/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/a3e2b8cf8ebd/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/ef5197f5108a/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/77ab607a186c/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/f1aac509551a/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/5140b6587bff/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/4981c69249ce/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/4c0ed9b6e699/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/a3e2b8cf8ebd/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c70a/9957781/ef5197f5108a/gr7.jpg

相似文献

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Neuroprotection by Nrf2 via modulating microglial phenotype and phagocytosis after intracerebral hemorrhage.

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[2]
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[2]
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[3]
Extracellular Vesicles From Bone Marrow-Derived Macrophages Enriched in ARG1 Enhance Microglial Phagocytosis and Haematoma Clearance Following Intracerebral Haemorrhage.

J Extracell Vesicles. 2025-1

[4]
Role of NRF2 in Pathogenesis of Alzheimer's Disease.

Antioxidants (Basel). 2024-12-13

[5]
Transcription Factor NRF2 in Shaping Myeloid Cell Differentiation and Function.

Adv Exp Med Biol. 2024

[6]
Mas receptor activation facilitates innate hematoma resolution and neurological recovery after hemorrhagic stroke in mice.

J Neuroinflammation. 2024-4-24

[7]
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Inflammation. 2024-10

[8]
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[9]
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Curr Neurol Neurosci Rep. 2023-8

本文引用的文献

[1]
Tanshinone A-Incubated Mesenchymal Stem Cells Inhibit Lipopolysaccharide-Induced Inflammation of N9 Cells through TREM2 Signaling Pathway.

Stem Cells Int. 2022-3-4

[2]
A Novel Netrin-1-Derived Peptide Enhances Protection against Neuronal Death and Mitigates of Intracerebral Hemorrhage in Mice.

Int J Mol Sci. 2021-5-2

[3]
Anti-Inflammatory Effects of Dimethyl Fumarate in Microglia via an Autophagy Dependent Pathway.

Front Pharmacol. 2021-5-7

[4]
Impact of ambient temperature on inflammation-induced encephalopathy in endotoxemic mice-role of phosphoinositide 3-kinase gamma.

J Neuroinflammation. 2020-10-7

[5]
Higher CSF sTREM2 and microglia activation are associated with slower rates of beta-amyloid accumulation.

EMBO Mol Med. 2020-9-7

[6]
Interaction of Microglia and Astrocytes in the Neurovascular Unit.

Front Immunol. 2020

[7]
Endoscopic hematoma removal of supratentorial intracerebral hemorrhage under local anesthesia reduces operative time compared to craniotomy.

Sci Rep. 2020-6-25

[8]
Distinct Neutrophil Populations in the Spleen During PICS.

Front Immunol. 2020

[9]
Long-term outcomes of monascin - a novel dual peroxisome proliferator-activated receptor γ/nuclear factor-erythroid 2 related factor-2 agonist in experimental intracerebral hemorrhage.

Ther Adv Neurol Disord. 2020-5-14

[10]
Nrf2 Ablation Promotes Alzheimer's Disease-Like Pathology in APP/PS1 Transgenic Mice: The Role of Neuroinflammation and Oxidative Stress.

Oxid Med Cell Longev. 2020-5-11

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