ArticleArthritis research & therapy2023
Notch signaling is activated in knee-innervating dorsal root ganglia in experimental models of osteoarthritis joint pain.
Article in Arthritis research & therapy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 15 citations in OpenAlex.
- Leptin drives osteoarthritis pain through sensory neuron reprogramming independent of cartilage signaling.bioRxiv : the preprint server for biology · 2026Article
- Managing Osteoarthritis Pain in Underrepresented Populations: Insights from Mexico and Latin America.Journal of clinical medicine · 2026Review
- DAPT Mitigates Osteoarthritic Cartilage Degeneration and Enhances Articular Repair Through Targeted Modulation of the Gucy1a3 and Notch Signaling Axis.Drug design, development and therapy · 2026Article
- The Notch signaling pathway in regulating bone and cartilage homeostasis: novel insights into the pathogenesis and therapeutics of osteoarthritis.Cell communication and signaling : CCS · 2025Review
- Assessment of Knee Hyperalgesia in Mice using Pressure Application Measurement.Journal of visualized experiments : JoVE · 2025Article
- RNAcare: integrating clinical data with transcriptomic evidence using rheumatoid arthritis as a case study.BMC medical genomics · 2025Article
- Activation of TLR4/CCL2 in Intact Neurons Drives Radicular Injury-Induced Global Nerve Trunk Hypersensitivity in Radiculopathy Preclinical Models.Journal of pain research · 2025Article
- Research on the diagnosis model of osteoarthritis based on methylation-related genes using machine learning algorithms.Frontiers in genetics · 2025Article
- Integrative Bulk and Single-Cell Transcriptomic Profiling Reveals Oxidative Stress-Related Genes and Potential Therapeutic Targets in Osteoarthritis.Mediators of inflammation · 2025Article
- Potential role of gut-related factors in the pathology of cartilage in osteoarthritis.Frontiers in nutrition · 2024Review
- Cryptotanshinone Inhibits Bladder Cancer Cell Malignant Progression in a Lipopolysaccharide-Induced Inflammatory Microenvironment through NLRP3 Inhibition.Mediators of inflammation · 2024Article
- Notch signalling mediates OA pain in mice.Nature reviews. Rheumatology · 2023Article
- Therapeutic potential of Coptis chinensis for arthritis with underlying mechanisms.Frontiers in pharmacology · 2023Review
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5 authors at 1 institution in 1 country.
Funding
Abstract
backgroundWe aimed to explore activation of the Notch signaling pathway in knee-innervating lumbar dorsal root ganglia (DRG) in the course of experimental osteoarthritis (OA) in mice, and its role in knee hyperalgesia.
methodsCultured DRG cells were stimulated with the TLR4 agonist, lipopolysaccharide (LPS). Notch signaling in the cells was either inhibited with the γ-secretase inhibitor, DAPT, or with soluble Jagged1, or activated through immobilized Jagged1. CCL2 production was analyzed at mRNA and protein levels. In in vivo experiments, knee hyperalgesia was induced in naïve mice through intra-articular (IA) injection of LPS. The effect of inhibiting Notch signaling was examined by pre-injecting DAPT one hour before LPS. OA was induced through surgical destabilization of the medial meniscus (DMM) in male C57BL/6 mice. Gene expression in DRG was analyzed by qRT-PCR and RNAscope in situ hybridization. Activated Notch protein (NICD) expression in DRG was evaluated by ELISA and immunofluorescence staining. DAPT was injected IA 12 weeks post DMM to inhibit Notch signaling, followed by assessing knee hyperalgesia and CCL2 expression in the DRG.
resultsIn DRG cell cultures, LPS increased NICD in neuronal cells. Inhibition of Notch signaling with either DAPT or soluble Jagged1 attenuated LPS-induced increases of Ccl2 mRNA and CCL2 protein. Conversely, activating Notch signaling with immobilized Jagged1 enhanced these LPS effects. In vivo, IA injection of LPS increased expression of Notch genes and NICD in the DRG. Pre-injection of DAPT prior to LPS alleviated LPS-induced knee hyperalgesia, and decreased LPS-induced CCL2 expression in the DRG. Notch signaling genes were differentially expressed in the DRG from late-stage experimental OA. Notch1, Hes1, and NICD were increased in the neuronal cell bodies in DRG after DMM surgery. IA administration of DAPT alleviated knee hyperalgesia post DMM, and decreased CCL2 expression in the DRG.
conclusionsThese findings suggest a synergistic effect of Notch signaling with TLR4 in promoting CCL2 production and mediating knee hyperalgesia. Notch signaling is activated in knee-innervating lumbar DRG in mice with experimental OA, and is involved in mediating knee hyperalgesia. The pathway may therefore be explored as a target for alleviating OA pain.
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