ArticleAnimals : an open access journal from MDPI2026
Eggshell Membrane Peptides Alleviate IL-1β-Induced Inflammatory Responses and Extracellular Matrix Degradation in Canine Chondrocytes by Inhibiting the NF-κB Signaling Pathway.
Article in Animals : an open access journal from MDPI, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundEggshell membrane peptides (ESMPs) are natural bioactive compounds with reported chondroprotective properties. However, their regulatory effects on canine chondrocytes remain unclear. This study investigated ESMP in an interleukin-1β (IL-1β)-induced inflammatory model of canine chondrocytes.
methodsChondrocytes were assigned to control (Cont), IL-1β, and ESMP + IL-1β groups. Cell viability was assessed using the Cell Counting Kit-8 (CCK-8) assay. NF-κB p65 nuclear translocation was evaluated by immunofluorescence staining. Real-time quantitative PCR (RT-qPCR) and Western blotting (WB) were used to measure mRNA and protein expression levels, respectively.
resultsESMP inhibited IL-1β-induced NF-κB p65 nuclear translocation and reduced the IL-1β-induced increases in interleukin-6 (IL-6), cyclooxygenase-2 (COX-2), inducible nitric oxide synthase (iNOS), and matrix metalloproteinase-13 (MMP-13) at both mRNA and protein levels. ESMP also decreased IL-6, nitric oxide (NO), and prostaglandin E
conclusionsESMP attenuates IL-1β-induced inflammatory responses and extracellular matrix degradation in canine chondrocytes, potentially associated with suppression of NF-κB p65 nuclear translocation. This supports its potential application in promoting joint health in dogs.
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