Netrin-1 Promotes M2 Type Activation and Inhibits Pyroptosis of Microglial Cells by Depressing RAC1/Nf-κB Pathway to Alleviate Inflammatory Pain.
Netrin-1 (NTN-1) plays a vital role in the progress of nervous system development and inflammatory diseases. However, the role and underlying mechanism of NTN-1 in inflammatory pain (IP) are unclear. BV2 microglia were treated with LPS to mimic the cell status under IP. Adeno-associated virus carryi...
| Published in: | Physiological Research Vol. 73; no. 2; pp. 305 - 315 |
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| Main Authors: | , , , , |
| Format: | Journal Article |
| Published: |
Institute of Physiology, Academy of Sciences of the Czech Republic
Apr2024
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=177132563&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 177132563 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 08628408 1CVW jtl: Physiological Research issn: 08628408 maglogo: N pubinfo: dt: Apr2024 vid: 73 iid: 2 pid: 24634 pub: Institute of Physiology, Academy of Sciences of the Czech Republic artinfo: ui: 177132563 10.33549/physiolres.935134 177132563 ppf: 305 ppct: 10 formats: fmt: @attributes: type: P tig: atl: Netrin-1 Promotes M2 Type Activation and Inhibits Pyroptosis of Microglial Cells by Depressing RAC1/Nf-κB Pathway to Alleviate Inflammatory Pain. aug: au: Yanyan YIN Yan YAN Xia JIN Yuanyuan FU Ying CHEN affil: Department of Anesthesiology, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, Guangdong, China sug: ab: Netrin-1 (NTN-1) plays a vital role in the progress of nervous system development and inflammatory diseases. However, the role and underlying mechanism of NTN-1 in inflammatory pain (IP) are unclear. BV2 microglia were treated with LPS to mimic the cell status under IP. Adeno-associated virus carrying the NTN-1 gene (AAV-NTN-1) was used to overexpress NTN-1. Complete Freund's Adjuvant (CFA)-induced mouse was recruited as an in vivo model. MTT and commercial kits were utilized to evaluate cell viability and cell death of BV2 cells. The mRNA expressions and secretions of cytokines were measured using the ELISA method. Also, the pyroptosis and activation of BV2 cells were investigated based on western blotting. To verify the role of Rac1/Nf-κB signaling, isochamaejasmin (ISO) and AAV-Rac1 were presented. The results showed that NTN-1 expression was decreased in LPS-treated BV2 microglia and spinal cord tissues of CFA-injected mice. Overexpressing NTN-1 dramatically reversed cell viability and decreased cell death rate of BV2 microglia under lipopolysaccharide (LPS) stimulation, while the level of pyroptosis was inhibited. Besides, AAV-NTN-1 rescued the activation of microglia and inflammatory injury induced by LPS, decreasing IBA-1 expression, as well as iNOS, IL-1γ and IL-6 secretions. Meanwhile AAV-NTN-1 promoted the anti-inflammation response, including increases in Arg-1, IL-4 and IL-10 levels. In addition, the LPS-induced activation of Rac1/Nf-κB signaling was depressed by NTN-1 overexpression. The same results were verified in a CFA-induced mouse model. In conclusion, NTN-1 alleviated IP by suppressing pyroptosis and promoting M2 type activation of microglia via inhibiting Rac1/Nf-κB signaling, suggesting the protective role of NTN-1 in IP. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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