ArticleInflammopharmacology2026
Inflammation suppressing activity of jellyfish toxin-derived peptide via downregulation of ROS/NF-κB/NLRP3 signaling in LPS/MSU induced fibroblasts in vitro and in vivo gouty arthritis model.
Article in Inflammopharmacology, 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
backgroundAnimal venoms are rich in bioactive peptides with potential therapeutic properties. Among marine toxins, jellyfish venoms are underexplored for anti-inflammatory applications. This study aims to identify and evaluate a peptide derived from the jellyfish toxin CfTX-B, for its anti-inflammatory potential.
methodsPeptide selection was conducted through an integrated computational-experimental workflow comprising PeptideRanker bioactivity prediction, ToxinPred toxicity screening, SwissADME pharmacokinetic evaluation, and multi-target molecular docking against NLRP3, caspase-1, XO, and IL-1β, followed by LC-MS/MS confirmation of proteolytic stability. The peptide's antioxidant activity was validated through XO inhibition assays. Cytotoxicity and anti-inflammatory effects were tested in human dermal fibroblasts (HDFs) co-stimulated with lipopolysaccharide (LPS) and monosodium urate (MSU) crystals. FITC-labeling studies assessed intracellular peptide uptake. Further, the inflammation suppressing effects of the peptide were studied on in vivo rat model of gouty arthritis.
resultsThe CfTX-B derived tetrapeptide (WPAW) revealed highest predicted bioactivity scores, favorable ADMET characteristics, and resistance to simulated gastrointestinal digestion. The peptide also showed strong binding to NLRP3, caspase-1, XO, and low predicted toxicity. XO inhibition assays confirmed antioxidant activity. In HDFs, the peptide showed no cytotoxicity up to 125 µM. Treatment with peptide significantly reduced nitric oxide (14.05 ± 0.24 µM) and reactive oxygen species (0.32 ± 0.009 RFI). ELISA revealed lowered IL-1β levels (53.54 ± 3.05 pg/ml). Protein expression studies showed downregulation of NLRP3, and pP65 levels, indicating effective suppression of inflammasome activation. The peptide reduced serum XO activity, IL-1β levels and suppressed joint inflammation in gout induced rats.
conclusionsThe tetrapeptide derived from jellyfish venom, exhibits strong anti-inflammatory and antioxidant activity through NLRP3 inflammasome inhibition. These results support its potential for development as a therapeutic for chronic inflammatory diseases.
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