ArticleJournal of cachexia, sarcopenia and muscle2023
Interleukin-6 promotes skeletal muscle catabolism by activating tryptophan-indoleamine 2,3-dioxygenase 1-kynurenine pathway during intra-abdominal sepsis.
Article in Journal of cachexia, sarcopenia and muscle, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.
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Who cites it
23 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.
- Biological function of d-tryptophan: a bibliometric analysis and review.Frontiers in microbiology · 2024Pooled it
- Identification of metabolites associated with preserved muscle volume after aneurysmal subarachnoid hemorrhage due to high protein supplementation and neuromuscular electrical stimulation.Scientific reports · 2024Trial
- Effects of anti-aging diets and exercise on age-related musculoskeletal diseases via gut microbiota modulation.Annals of medicine · 2026Review
- Article
- Tryptophan metabolism in colorectal cancer: From mechanistic insights to novel therapeutic strategies.Clinical and translational medicine · 2026Review
- Adenosine 5'-monophosphate prevents sepsis-associated muscle wasting by activating AMPK and suppressing IL-1β inflammatory cytokines.Journal of intensive care · 2026Article
- Higher Circulating Kynurenine Levels Linked to Higher Risk of Sarcopenia in Older Adults: A Cohort Study and UK Biobank Analysis.Endocrinology and metabolism (Seoul, Korea) · 2026Article
- A systematic scoping review and conceptual analysis of new-onset fibromyalgia manifestations after non-hospitalized COVID-19: empirics, definitions, methodologies, pathophysiology, mapping of literature, and knowledge gaps.Journal of translational medicine · 2026Article
- Serum metabolites in relation to kidney function in non-transplant and kidney transplant settings using gas chromatography-mass spectrometry.BMC nephrology · 2026Article
- Bench-to-Bedside Insights into the Challenges of Immunosuppression in Sepsis.Pathogens (Basel, Switzerland) · 2026Review
- Association Between Circulating Cytokines and Psychosomatic Syndromes in Patients with Mood Disorders.Clinical neuropsychiatry · 2025Article
- Muscle matters: Transforming the care of intensive care unit acquired sarcopenia and myosteatosis.World journal of clinical cases · 2025Review
- Cisplatin-Induced Skeletal Muscle Atrophy: Biomolecular Mechanisms and the Protective Role of Exercise-Induced Myokines.Biomolecules · 2025Review
- Glucocorticoid-Mediated Skeletal Muscle Atrophy: Molecular Mechanisms and Potential Therapeutic Targets.International journal of molecular sciences · 2025Review
- Integrated Metabolomics and Lipidomics Analysis Reveals the Mechanism Behind the Action of Chiglitazar on the Protection Against Sepsis-Induced Acute Lung Injury.Metabolites · 2025Article
- The Role of Inflammatory Sarcopenia in Increasing Fall Risk in Older Adults: Exploring the Impact on Mobility-Impaired and Immunocompromised Patients.Geriatrics (Basel, Switzerland) · 2025Article
- Burn-Induced Gut Microbiota Dysbiosis Aggravates Skeletal Muscle Atrophy by Tryptophan-Kynurenine Mediated AHR Pathway Activation.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Tryptophan metabolic reprogramming modulates cytokine networks in nucleos(t)ide analogue-treated chronic hepatitis B patients.Frontiers in cellular and infection microbiology · 2025Article
- Exploring the Relationship Between Gut Microbiota and Sarcopenia Based on Gut-Muscle Axis.Food science & nutrition · 2024Review
- Metabolic Side Effects from Antipsychotic Treatment with Clozapine Linked to Aryl Hydrocarbon Receptor (AhR) Activation.Biomedicines · 2024Review
Corrections and comments
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Authors and funding
11 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundInflammatory cytokine interleukin-6 (IL-6) plays a pivotal role in skeletal muscle degradation after intra-abdominal sepsis (IAS), with mechanism remained to be elucidated. Indoleamine 2,3-dioxygenase 1 (IDO-1), a key enzyme in converting tryptophan into kynurenine, could be activated by IL-6, and kynurenine has been shown to be involved in muscle degradation. We hypothesized that IL-6 could promote muscle degradation via tryptophan-IDO-1-kynurenine pathway in IAS patients.
methodsSerum and rectus abdominis (RA) were obtained from IAS or non-IAS patients. Mouse model of IAS-induced muscle wasting was generated by caecal ligation and puncture (CLP) and lipopolysaccharide (LPS) injection. IL-6 signalling was blocked by anti-mouse IL-6 antibody (IL-6-AB), and the IDO-1 pathway was blocked by navoximod. To elucidate the role of kynurenine in muscle mass and physiology, kynurenine was administered to IAS mice treated with IL-6-AB.
resultsCompared to non-IAS patients, kynurenine levels in serum (+2.30-fold vs. non-IAS, P < 0.001) and RA (+3.11-fold vs. non-IAS, P < 0.001) were elevated, whereas tryptophan levels in serum (-53.65% vs. non-IAS, P < 0.01) and RA (-61.39% vs. non-IAS, P < 0.01) were decreased. Serum IL-6 level of the IAS group was significantly higher compared to non-IAS patients (+5.82-fold vs. non-IAS, P = 0.01), and muscle cross-sectional area (MCSA) was markedly reduced compared to non-IAS patients (-27.73% vs. non-IAS, P < 0.01). In animal experiments, IDO-1 expression was up-regulated in the small intestine, colon and blood for CLP or LPS-treated mice, and there was correlation (R
conclusionsThis study provided novel insights into the tryptophan-IDO-1-kynurenine-dependent mechanisms that underlie inflammatory cytokine-induced skeletal muscle catabolism during intra-abdominal sepsis.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.