ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2015
miR-155 Is Essential for Inflammation-Induced Hippocampal Neurogenic Dysfunction.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.
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Who cites it
59 citing papers in PubMed, 94 citations in OpenAlex.
- Blood-derived microRNA signatures associated with hippocampal structure and atrophy rate: findings from the Rhineland Study.Molecular psychiatry · 2026Article
- Biomimetic nanodelivery of antagomiR-155-5p ameliorates wear particle-induced osteolysis by dual regulation of Gas6/Axl-mediated macrophage inflammation.Journal of orthopaedic translation · 2026Article
- miR155, triplicated in Down syndrome, regulates the development of neural stem cells and GABAergic interneurons in Alzheimer's disease mouse and human iPSC models.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Functional evidence of hsa-miR-21-5p and hsa-miR-3158-3p in regulating immune pathways relevant to cerebral malaria.Molecular biology reports · 2026Article
- Mechanisms of Action of Propofol in Modulating Microglial Activation in Ischemic Stroke.Molecules (Basel, Switzerland) · 2025Review
- miR-154-5p Is a Novel Endogenous Ligand for TLR7 Inducing Microglial Activation and Neuronal Injury.Cells · 2024Article
- Exosomes from Inflamed Macrophages Promote the Progression of Parkinson's Disease by Inducing Neuroinflammation.Molecular neurobiology · 2023Article
- The Transcription Factor NRF2 Has Epigenetic Regulatory Functions Modulating HDACs, DNMTs, and miRNA Biogenesis.Antioxidants (Basel, Switzerland) · 2023Article
- Roles of the miR-155 in Neuroinflammation and Neurological Disorders: A Potent Biological and Therapeutic Target.Cellular and molecular neurobiology · 2023Review
- Combining inflammatory miRNA molecules as diagnostic biomarkers for depression: a clinical study.Frontiers in psychiatry · 2023Article
- The diverse roles of macrophages in metabolic inflammation and its resolution.Frontiers in cell and developmental biology · 2023Review
- The role of microRNAs in the molecular link between circadian rhythm and autism spectrum disorder.Animal cells and systems · 2023Review
- Lipopolysaccharide-induced Autophagy Increases SOX2-positive Astrocytes While Decreasing Neuronal Differentiation in the Adult Hippocampus.Experimental neurobiology · 2022Article
- The heterogeneity of microglial activation and its epigenetic and non-coding RNA regulations in the immunopathogenesis of neurodegenerative diseases.Cellular and molecular life sciences : CMLS · 2022Review
- Upregulation of Spinal miR-155-5p Contributes to Mechanical Hyperalgesia by Promoting Inflammatory Activation of Microglia in Bone Cancer Pain Rats.Life (Basel, Switzerland) · 2022Article
- Astrogenesis in the murine dentate gyrus is a life-long and dynamic process.The EMBO journal · 2022Article
- Down-regulation of microRNA-155 suppressed Candida albicans induced acute lung injury by activating SOCS1 and inhibiting inflammation response.Journal of microbiology (Seoul, Korea) · 2022Article
- Association of miR-155, miR-187 and Inflammatory Cytokines IL-6, IL-10 and TNF-α in Chronic Opium Abusers.Inflammation · 2022Article
- Microglia in Alzheimer's Disease: A Favorable Cellular Target to Ameliorate Alzheimer's Pathogenesis.Mediators of inflammation · 2022Review
- Acute Ethanol Challenge Differentially Regulates Expression of Growth Factors and miRNA Expression Profile of Whole Tissue of the Dorsal Hippocampus.Frontiers in neuroscience · 2022Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
Abstract
Peripheral and CNS inflammation leads to aberrations in developmental and postnatal neurogenesis, yet little is known about the mechanism linking inflammation to neurogenic abnormalities. Specific miRs regulate peripheral and CNS inflammatory responses. miR-155 is the most significantly upregulated miR in primary murine microglia stimulated with lipopolysaccharide (LPS), a proinflammatory Toll-Like Receptor 4 ligand. Here, we demonstrate that miR-155 is essential for robust IL6 gene induction in microglia under LPS stimulation in vitro. LPS-stimulated microglia enhance astrogliogenesis of cocultured neural stem cells (NSCs), whereas blockade of IL6 or genetic ablation of microglial miR-155 restores neural differentiation. miR-155 knock-out mice show reversal of LPS-induced neurogenic deficits and microglial activation in vivo. Moreover, mice with transgenic elevated expression of miR-155 in nestin-positive neural and hematopoietic stem cells, including microglia, show increased cell proliferation and ectopically localized doublecortin-positive immature neurons and radial glia-like cells in the hippocampal dentate gyrus (DG) granular cell layer. Microglia have proliferative and neurogenic effects on NSCs, which are significantly altered by microglial miR-155 overexpression. In addition, miR-155 elevation leads to increased microglial numbers and amoeboid morphology in the DG. Our study demonstrates that miR-155 is essential for inflammation-induced neurogenic deficits via microglial activation and induction of IL6 and is sufficient for disrupting normal hippocampal development.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.