ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2026
Neddylation Targets and Stabilizes NLRP3 to Augment Inflammasome-Mediated Colitis and Mood Disorder.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Neddylation Targets and Stabilizes NLRP3 to Augment Inflammasome-Mediated Colitis and Mood Disorder.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- FBXO11 and FBXO32 are associated with TRAF3-TBK1-IRF3 signaling components in chronic hepatitis B: evidence from clinical samples and preliminary mechanistic studies.American journal of translational research · 2026Article
- Comorbidity of anxiety and dry eye disease: shared biomarkers and immune responses.Frontiers in immunology · 2026Article
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14 authors.
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Abstract
The activation of NLRP3 inflammasome contributes to the development of numerous chronic inflammatory diseases, including ulcerative colitis and stress-induced anxiety. Recent studies have revealed that NLRP3 K48-linked ubiquitination by several E3 ligases, including Trim31, leads to degradation. Neddylation is a process highly similar to ubiquitination by covalently conjugating NEDD8 to lysines in specific substrate proteins. Neddylation of substrate proteins alters their subcellular localization, stability, and activity. The role of neddylation in the NLRP3 inflammasome remains elusive. Here, we report that neddylation promotes the activation of the NLRP3 inflammasome in macrophages. Myeloid deficiency of UBA3, the catalytic subunit of the NEDD8-activating enzyme (NAE), renders mice resistant to dextran sodium sulfate-induced colitis. Inducible Uba3 deletion in microglia mitigates psychological stress-induced anxiety-like behavior. Neddylation blockade led to a reduced protein level of NLRP3 without affecting its mRNA level. Further exploration revealed that NLRP3 undergoes neddylation at K287 with Ube2M as the E2 and Smurf2 as an E3, respectively. NLRP3 neddylation hinders its interaction with Trim31 and thereby inhibits its K48-linked ubiquitination and subsequent degradation. MLN4924, a potent compound NAE inhibitor in phase 1/2/3 clinical trials for cancers, alleviates psychological stress-induced NLRP3 inflammasome activation, microglia inflammatory activation, and anxiety-like behavior, suggesting novel clinical activity of MLN4924.
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