中国神经再生研究(英文版) ›› 2025, Vol. 20 ›› Issue (3): 873-886.doi: 10.4103/NRR.NRR-D-23-01688

• 原著:退行性病与再生 • 上一篇    下一篇

促炎症消退介质降低人类单核细胞源性小胶质细胞中Aβ42诱导的基因表达

  


  • 出版日期:2025-03-15 发布日期:2024-06-26

Pro-resolving lipid mediator reduces amyloid-β42–induced gene expression in human monocyte–derived microglia

Ying Wang1, 2, #, Xiang Zhang3, #, Henrik Biverstål4, Nicolas G. Bazan5, Shuai Tan6, Nailin Li6, Makiko Ohshima1, Marianne Schultzberg1, *, Xiaofei Li1, *   

  1. 1Department of Neurobiology, Care Sciences & Society, Division of Neurogeriatrics, Karolinska Institutet, Stockholm, Sweden; 2Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, Jilin Province, China; 3Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden; 4Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden; 5Neuroscience Center of Excellence, Louisiana State University, New Orleans, LA, USA; 6Department of Medicine, Solna,   Clinical Pharmacology Group, Karolinska University Hospital, Stockholm, Sweden
  • Online:2025-03-15 Published:2024-06-26
  • Contact: Marianne Schultzberg, marianne.schultzberg@ki.se; Xiaofei Li, xiaofei.li@ki.se.
  • Supported by:
    This study was supported by the China Scholarship Council (to YW); the Swedish Research Council, No. 2018-02601 (to MS); the Alzheimer Foundation, No. AF-980695 (to MS); the Stockholm County Council, No. RS2020-0731 (to MS); the Foundation of Old Servants (to MS); the Gun and Bertil Stohne Foundation (to MS); the Åhlén Foundation, No. 233055 (to MS); The Swedish Fund for Research without Animal Experiments (to MS); the Swedish Dementia Foundation (to MS); and the Brain foundation, No. FO2022-0131 (to MS).

摘要:

包括Maresin 1(MaR1)在内的新型促炎症消退介质在阿尔茨海默病大脑中的水平降低,这表明它们是治疗阿尔茨海默病的一个新靶点,可预防/阻止炎症并对抗疾病病理。因此,弄清它们是否能抵消淀粉样β蛋白诱导的基因和蛋白变化非常重要。为此,实验分析了人类单核细胞源性小胶质细胞与体外模拟神经炎症及其在阿尔茨海默病背景下治疗方法的关系,并研究了MaR1对Aβ42诱导的阿尔茨海默病样炎症的促进消退生物活性。实验对RNA序列数据和分泌蛋白进行分析的结果显示,Aβ42孵育后单核细胞源性小胶质细胞与人脑小胶质细胞的阿尔茨海默病样神经炎症相似。MaR1 对 Aβ42 影响的保护作用是由炎症转录网络的再平衡介导的,其中 NFκB 通路中的基因转录调节起了主要作用。总之,单核细胞源性小胶质细胞是研究阿尔茨海默病样炎症和药物反应的一个相关体外小胶质细胞模型。MaR1能改善Aβ42诱导的多种阿尔茨海默病重要基因的变化,突出了其作为阿尔茨海默病治疗靶点的潜力。

https://orcid.org/0000-0002-9991-7534 (Xiaofei Li); https://orcid.org/0000-0002-8314-0927 (Marianne Schultzberg)

Abstract: Specialized pro-resolving lipid mediators including maresin 1 mediate resolution but the levels of these are reduced in Alzheimer’s disease brain, suggesting that they constitute a novel target for the treatment of Alzheimer’s disease to prevent/stop inflammation and combat disease pathology. Therefore, it is important to clarify whether they counteract the expression of genes and proteins induced by amyloid-β. With this objective, we analyzed the relevance of human monocyte–derived microglia for in vitro modeling of neuroinflammation and its resolution in the context of Alzheimer’s disease and investigated the pro-resolving bioactivity of maresin 1 on amyloid-β42–induced Alzheimer’s disease–like inflammation. Analysis of RNA-sequencing data and secreted proteins in supernatants from the monocyte-derived microglia showed that the monocyte-derived microglia resembled Alzheimer’s disease–like neuroinflammation in human brain microglia after incubation with amyloid-β42. Maresin 1 restored homeostasis by down-regulating inflammatory pathway related gene expression induced by amyloid-β42 in monocyte-derived microglia, protection of maresin 1 against the effects of amyloid-β42 is mediated by a re-balancing of inflammatory transcriptional networks in which modulation of gene transcription in the nuclear factor-kappa B pathway plays a major part. We pinpointed molecular targets that are associated with both neuroinflammation in Alzheimer’s disease and therapeutic targets by maresin 1. In conclusion, monocyte-derived microglia represent a relevant in vitro microglial model for studies on Alzheimer’s disease-like inflammation and drug response for individual patients. Maresin 1 ameliorates amyloid-β42–induced changes in several genes of importance in Alzheimer’s disease, highlighting its potential as a therapeutic target for Alzheimer’s disease.

Key words: Alzheimer’s disease, amyloid-β, maresin, microglia, monocyte, neuroinflammation, resolution, RNA-sequencing, specialized pro-resolving lipid mediator