Depression is a prevalent mental illness that significantly impairs individuals' overall quality of life and physical well-being. However, the pathological mechanisms of depression remain unclear, and effective treatment strategies are urgently needed. Pentraxin 3 (PTX3), a long pentraxin protein, plays a significant role in various pathological conditions, including infections, immune responses, and tissue repair. In this study, we collected serum from patients with depression and established both animal and cell models of depression. We found that PTX3 expression was significantly reduced in both the serum of patients with depression and the hippocampus of chronic unpredictable mild stress (CUMS) mice. PTX3 supplementation markedly improved depressive-like behavior in CUMS mice and promoted microglial M2 polarization. In the LPS-induced BV2 cell model, PTX3 overexpression facilitated microglial M2 polarization via activation of the CREB/CEBPb axis. Additionally, PTX3 enhanced fibroblast growth factor 22 (FGF22) expression and excitatory synapse formation in the CA3 region of the hippocampus in CUMS mice. In the dexamethasone (DXM)-treated SH-SY5Y cell model, PTX3 overexpression increased SPI1 expression, elevated FGF22 transcriptional activity, and promoted the expression of excitatory synapse-related proteins PSD95 and VGLUT1. In summary, our study demonstrates that PTX3 promotes microglial M2 polarization and excitatory synapse formation in the hippocampus, suggesting potential antidepressant effects and providing theoretical support for considering PTX3 as a therapeutic target for depression.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.intimp.2024.113946 | DOI Listing |
Int Immunopharmacol
January 2025
Department of Orthopedics, The First Affiliated Hospital of Soochow University, No. 899 Pinghai Road, Suzhou 215006 PR China. Electronic address:
Spinal cord injury (SCI) represents a severe type of central nervous system damage, with no effective treatment currently available, partly due to neuronal ferroptosis and subsequent neuroinflammation. Punicalagin, an anti-inflammatory compound extracted from pomegranate peel, has exhibited therapeutic potential for inflammatory diseases. In this study, we present evidence that punicalagin facilitates the recovery of neurological function following SCI by mitigating neuronal ferroptosis.
View Article and Find Full Text PDFMed Sci Sports Exerc
January 2025
School of Physical Education and Sports Science, South China Normal University, Guangzhou, CHINA.
Purpose: This study aimed to investigate the pathological responses of glial cells at different distances from amyloid plaques and the characteristics of oligodendrocyte precursor cells (OPCs) in perivascular clustering. Additionally, it sought to explore the impact of exercise training on AD pathology, specifically focusing on the modulation of glial responses and the effects of OPC perivascular clustering.
Methods: Three-month-old C57BL/6 and APP/PS1 mice were divided into four groups: wild-type sedentary, wild-type exercise, sedentary AD, and exercise AD groups.
IBRO Neurosci Rep
June 2025
Department of Anesthesiology, The Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200090, China.
Introduction: Perioperative neurocognitive dysfunction (PND) is a significant challenge for patients who need surgery worldwide. Morphine can trigger an intense inflammatory reaction in the central nervous system (CNS) at the same time as analgesia, thus adverse effects aggravating PND. Microglia polarization is closely involved in the regulation of neuroinflammation and the TLR4/MyD88/NF-κB signaling pathway.
View Article and Find Full Text PDFBiomaterials
December 2024
Department of Nuclear Medicine and PET Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China; Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China; Key Laboratory of Medical Molecular Imaging of Zhejiang Province, Hangzhou, China; Key Laboratory for Biomedical Engineering of Ministry of Education, Zhejiang University, Hangzhou, China. Electronic address:
Alzheimer's disease (AD) is the most prevalent neurodegenerative disorder globally, with no effective treatment available yet. A crucial pathological hallmark of AD is the accumulation of hyperphosphorylated tau protein, which is deteriorated by reactive oxygen species (ROS) and neuroinflammation in AD progression. Thus, alleviation of ROS and inflammation has become a potential therapeutic strategy in many studies.
View Article and Find Full Text PDFJ Transl Med
January 2025
Division of Spine, Department of Orthopedics, Tongji Hospital affiliated to Tongji University, Tongji University School of Medicine, Shanghai, 200065, China.
Background: Ferroptosis and immune responses are critical pathological events in spinal cord injury (SCI), whereas relative molecular and cellular mechanisms remain unclear.
Methods: Micro-array datasets (GSE45006, GSE69334), RNA sequencing (RNA-seq) dataset (GSE151371), spatial transcriptome datasets (GSE214349, GSE184369), and single cell RNA sequencing (scRNA-seq) datasets (GSE162610, GSE226286) were available from the Gene Expression Omnibus (GEO) database. Through weighted gene co-expression network analysis and differential expression analysis in GSE45006, we identified differentially expressed time- and immune-related genes (DETIRGs) associated with chronic SCI and differentially expressed ferroptosis- and immune-related genes (DEFIRGs), which were validated in GSE151371.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!