ArticleInflammation research : official journal of the European Histamine Research Society ... [et al.]2023
5-Methoxytryptophan ameliorates endotoxin-induced acute lung injury in vivo and in vitro by inhibiting NLRP3 inflammasome-mediated pyroptosis through the Nrf2/HO-1 signaling pathway.
Article in Inflammation research : official journal of the European Histamine Research Society ... [et al.], 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 17 citations in OpenAlex.
- STOX1 Promotes Pyroptosis of Hypoxic Trophoblast Cells Via the Nrf2/Caspase-1 Axis.Molecular reproduction and development · 2026Article
- Dysregulation of the KLF9/TXNRD2 Axis Leads to Mitochondrial DNA Oxidation and NLRP3 Inflammasome Activation in Ulcerative Colitis.Journal of biochemical and molecular toxicology · 2026Article
- Jingfang granules inhibiting LPS-induced acute lung injury via regulating linoleic acid and arachidonic acid metabolism pathway.PloS one · 2026Article
- Optimization, Characterization and Pharmacological Validation of the Endotoxin-Induced Acute Pneumonitis Mouse Model.Biomedicines · 2025Article
- Article
- 5-methoxytryptophan ameliorates renal ischemia/reperfusion injury by alleviating endoplasmic reticulum stress-mediated apoptosis through the Nrf2/HO-1 pathway.Frontiers in pharmacology · 2025Article
- Identification of potential biomarkers and pathways involved in high-altitude pulmonary edema using GC-MS and LC-MS metabolomic methods.Scientific reports · 2024Article
- Esaxerenone Inhibits Interferon-γ Induced Pyroptosis of Macrophages in the Lungs of Aldosterone-treated Mice.Inflammation · 2024Article
- 5-Methoxytryptophan Alleviates Lipopolysaccharide-Induced Acute Kidney Injury by Regulating Nrf2-Mediated Mitophagy.Journal of inflammation research · 2024Article
- 5-Methoxytryptophan Alleviates Dextran Sulfate Sodium-Induced Colitis by Inhibiting the Intestinal Epithelial Damage and Inflammatory Response.Mediators of inflammation · 2024Article
- Oxycodone attenuates endotoxin-induced acute lung injury by regulating mitophagy via the HO-1 pathway.Clinics (Sao Paulo, Brazil)Article
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Authors and funding
11 authors at 4 institutions in 1 country.
Funding
Abstract
BACKGROUND AND
aimEndotoxin-induced acute lung injury (ALI) is a complicated and fatal condition with no specific or efficient clinical treatments. 5-Methoxytryptophan (5-MTP), an endogenous metabolite of tryptophan, was revealed to block systemic inflammation. However, the specific mechanism by which 5-MTP affects ALI still needs to be clarified. The purpose of this study was to determine whether 5-MTP protected the lung by inhibiting NLRP3 inflammasome-mediated pyroptosis through the Nrf2/HO-1 signaling pathway. METHODS AND
resultsWe used lipopolysaccharide (LPS)-stimulated C57BL/6 J mice and MH-S alveolar macrophages to create models of ALI, and 5-MTP (100 mg/kg) administration attenuated pathological lung damage in LPS-exposed mice, which was associated with decreased inflammatory cytokines and oxidative stress levels, upregulated protein expression of Nrf2 and HO-1, and suppressed Caspase-1 activation and NLRP3-mediated pyroptosis protein levels. Moreover, Nrf2-deficient mice or MH-S cells were treated with 5-MTP to further confirm the protective effect of the Nrf2/HO-1 pathway on lung damage. We found that Nrf2 deficiency partially eliminated the beneficial effect of 5-MTP on reducing oxidative stress levels and inflammatory responses and abrogating the inhibition of NLRP3-mediated pyroptosis induced by LPS.
conclusionThese findings suggested that 5-MTP could effectively ameliorate ALI by inhibiting NLRP3-mediated pyroptosis via the Nrf2/HO-1 signaling pathway.
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