外源性 NT-3 通过 AMPK/NF-κB 信号通路促进驻留巨噬细胞表型转换并改善坐骨神经损伤

IF 3.7 3区 医学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY Neurochemical Research Pub Date : 2024-06-21 DOI:10.1007/s11064-024-04198-6
Xuri Sun, Shuqin Ni, Qingsheng Zhou, Dexin Zou
{"title":"外源性 NT-3 通过 AMPK/NF-κB 信号通路促进驻留巨噬细胞表型转换并改善坐骨神经损伤","authors":"Xuri Sun,&nbsp;Shuqin Ni,&nbsp;Qingsheng Zhou,&nbsp;Dexin Zou","doi":"10.1007/s11064-024-04198-6","DOIUrl":null,"url":null,"abstract":"<div><p>Neurotrophin-3 (NT-3) is an important family of neurotrophic factors with extensive neurotrophic activity, which can maintain the survival and regeneration of nerve cells. However, the mechanism of NT-3 on macrophage phenotype transformation after sciatic nerve injury is not clear. In this study, we constructed a scientific nerve compression injury animal model and administered different doses of NT-3 treatment through osmotic minipump. 7 days after surgery, we collected sciatic nerve tissue and observed the distribution of macrophage phenotype through iNOS and CD206 immunofluorescence. During the experiment, regular postoperative observations were conducted on rats. After the experiment, sciatic nerve tissue was collected for HE staining, myelin staining, immunofluorescence staining, and Western blot analysis. To verify the role of the AMPK/NF-κB pathway, we applied the AMPK inhibitor Compound C and the NF-κB inhibitor BAY11-7082 to repeat the above experiment. Our experimental results reveal that NT-3 promotes sciatic nerve injury repair and polarization of M2 macrophage phenotype, promotes AMPK activation, and inhibits NF-κB activation. The repair effect of high concentration NT-3 on sciatic nerve injury is significantly enhanced compared to low concentration. Compound C administration can weaken the effect of NT-3, while BAY 11-7082 can enhance the effect of NT-3. In short, NT-3 significantly improves sciatic nerve injury in rats, promotes sciatic nerve function repair, accelerates M2 macrophage phenotype polarization, and improves neuroinflammatory response. The protective effects of NT-3 mentioned above are partially related to the AMPK/NF-κB signal axis.</p></div>","PeriodicalId":719,"journal":{"name":"Neurochemical Research","volume":null,"pages":null},"PeriodicalIF":3.7000,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Exogenous NT-3 Promotes Phenotype Switch of Resident Macrophages and Improves Sciatic Nerve Injury through AMPK/NF-κB Signaling Pathway\",\"authors\":\"Xuri Sun,&nbsp;Shuqin Ni,&nbsp;Qingsheng Zhou,&nbsp;Dexin Zou\",\"doi\":\"10.1007/s11064-024-04198-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Neurotrophin-3 (NT-3) is an important family of neurotrophic factors with extensive neurotrophic activity, which can maintain the survival and regeneration of nerve cells. However, the mechanism of NT-3 on macrophage phenotype transformation after sciatic nerve injury is not clear. In this study, we constructed a scientific nerve compression injury animal model and administered different doses of NT-3 treatment through osmotic minipump. 7 days after surgery, we collected sciatic nerve tissue and observed the distribution of macrophage phenotype through iNOS and CD206 immunofluorescence. During the experiment, regular postoperative observations were conducted on rats. After the experiment, sciatic nerve tissue was collected for HE staining, myelin staining, immunofluorescence staining, and Western blot analysis. To verify the role of the AMPK/NF-κB pathway, we applied the AMPK inhibitor Compound C and the NF-κB inhibitor BAY11-7082 to repeat the above experiment. Our experimental results reveal that NT-3 promotes sciatic nerve injury repair and polarization of M2 macrophage phenotype, promotes AMPK activation, and inhibits NF-κB activation. The repair effect of high concentration NT-3 on sciatic nerve injury is significantly enhanced compared to low concentration. Compound C administration can weaken the effect of NT-3, while BAY 11-7082 can enhance the effect of NT-3. In short, NT-3 significantly improves sciatic nerve injury in rats, promotes sciatic nerve function repair, accelerates M2 macrophage phenotype polarization, and improves neuroinflammatory response. The protective effects of NT-3 mentioned above are partially related to the AMPK/NF-κB signal axis.</p></div>\",\"PeriodicalId\":719,\"journal\":{\"name\":\"Neurochemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2024-06-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Neurochemical Research\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11064-024-04198-6\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"BIOCHEMISTRY & MOLECULAR BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Neurochemical Research","FirstCategoryId":"3","ListUrlMain":"https://link.springer.com/article/10.1007/s11064-024-04198-6","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 0

摘要

神经营养素-3(NT-3)是一种重要的神经营养因子家族,具有广泛的神经营养活性,可维持神经细胞的存活和再生。然而,NT-3对坐骨神经损伤后巨噬细胞表型转化的作用机制尚不清楚。本研究构建了科学的神经压迫损伤动物模型,并通过渗透压微型泵给予不同剂量的NT-3治疗。术后 7 天采集坐骨神经组织,通过 iNOS 和 CD206 免疫荧光观察巨噬细胞表型的分布。实验期间,对大鼠进行定期术后观察。实验结束后,收集坐骨神经组织进行 HE 染色、髓鞘染色、免疫荧光染色和 Western 印迹分析。为了验证AMPK/NF-κB通路的作用,我们应用AMPK抑制剂化合物C和NF-κB抑制剂BAY11-7082重复了上述实验。实验结果表明,NT-3能促进坐骨神经损伤修复和M2巨噬细胞表型极化,促进AMPK活化,抑制NF-κB活化。与低浓度NT-3相比,高浓度NT-3对坐骨神经损伤的修复作用明显增强。服用化合物 C 可削弱 NT-3 的作用,而 BAY 11-7082 则可增强 NT-3 的作用。总之,NT-3 能明显改善大鼠坐骨神经损伤,促进坐骨神经功能修复,加速 M2 巨噬细胞表型极化,改善神经炎症反应。NT-3的上述保护作用部分与AMPK/NF-κB信号轴有关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

摘要图片

摘要图片

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Exogenous NT-3 Promotes Phenotype Switch of Resident Macrophages and Improves Sciatic Nerve Injury through AMPK/NF-κB Signaling Pathway

Neurotrophin-3 (NT-3) is an important family of neurotrophic factors with extensive neurotrophic activity, which can maintain the survival and regeneration of nerve cells. However, the mechanism of NT-3 on macrophage phenotype transformation after sciatic nerve injury is not clear. In this study, we constructed a scientific nerve compression injury animal model and administered different doses of NT-3 treatment through osmotic minipump. 7 days after surgery, we collected sciatic nerve tissue and observed the distribution of macrophage phenotype through iNOS and CD206 immunofluorescence. During the experiment, regular postoperative observations were conducted on rats. After the experiment, sciatic nerve tissue was collected for HE staining, myelin staining, immunofluorescence staining, and Western blot analysis. To verify the role of the AMPK/NF-κB pathway, we applied the AMPK inhibitor Compound C and the NF-κB inhibitor BAY11-7082 to repeat the above experiment. Our experimental results reveal that NT-3 promotes sciatic nerve injury repair and polarization of M2 macrophage phenotype, promotes AMPK activation, and inhibits NF-κB activation. The repair effect of high concentration NT-3 on sciatic nerve injury is significantly enhanced compared to low concentration. Compound C administration can weaken the effect of NT-3, while BAY 11-7082 can enhance the effect of NT-3. In short, NT-3 significantly improves sciatic nerve injury in rats, promotes sciatic nerve function repair, accelerates M2 macrophage phenotype polarization, and improves neuroinflammatory response. The protective effects of NT-3 mentioned above are partially related to the AMPK/NF-κB signal axis.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Neurochemical Research
Neurochemical Research 医学-神经科学
CiteScore
7.70
自引率
2.30%
发文量
320
审稿时长
6 months
期刊介绍: Neurochemical Research is devoted to the rapid publication of studies that use neurochemical methodology in research on nervous system structure and function. The journal publishes original reports of experimental and clinical research results, perceptive reviews of significant problem areas in the neurosciences, brief comments of a methodological or interpretive nature, and research summaries conducted by leading scientists whose works are not readily available in English.
期刊最新文献
Nicotinamide and Nicotinoyl-Gamma-Aminobutyric Acid as Neuroprotective Agents Against Type 1 Diabetes-Induced Nervous System Impairments in Rats Emerging Trends: Neurofilament Biomarkers in Precision Neurology Sodium Butyrate Ameliorates Postoperative Delirium by Regulating Gut Microbiota Dysbiosis to Inhibit Astrocyte Activation in Aged Mice Editorial Expression of Concern: The Possible Role of Brain-derived Neurotrophic Factor in Epilepsy Zona Incerta GABAergic Neurons Facilitate Emergence from Isoflurane Anesthesia in Mice
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1