ArticleAnnals of the rheumatic diseases2024
L-arginine metabolism inhibits arthritis and inflammatory bone loss.
Article in Annals of the rheumatic diseases, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers, 1 of them a synthesis that pooled it.
What it found
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The trial behind it
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Who cites it
58 citing papers in PubMed, 1 synthesis or guideline pooled it, 89 citations in OpenAlex.
- The Gut-Bone Axis and Skeletal Health: Regulatory Mechanisms and Therapeutic Applications of Plant-Derived Bioactive Compounds.Biomolecules · 2026Pooled it
- Disease activity and treatment response in early rheumatoid arthritis: an exploratory metabolomic profiling in the NORD-STAR cohort.Arthritis research & therapy · 2025Trial
- Amino Acid Metabolism in Health and Disease.MedComm · 2026Review
- Bone organoids and mitochondrial reprogramming.Journal of orthopaedic translation · 2026Review
- Bifidobacterium longum subsp. infantis CCFM1445 Promotes Bone Growth in Growing Mice Via Modulating Gut Microbiota and Arginine Metabolism Pathway.Probiotics and antimicrobial proteins · 2026Article
- Gut Microbial Functional Ecology and Microbiota-Derived Metabolites in Rheumatoid Arthritis Autoimmunity.Cells · 2026Review
- Aptamer-functionalized tetrahedral framework nucleic acid delivery of siBhlhe22 for repairing osteoporotic bone defects via dual modulation of PI3K-Akt signaling and purine metabolism.Journal of nanobiotechnology · 2026Article
- Review
- Lactate programs CRIP1 protein lactylation to drive synovial proliferation in rheumatoid arthritis.JCI insight · 2026Article
- Article
- Engineering L-Arg@ZIF-8 nanoparticles to modulate the immune-osteogenic-angiogenic microenvironment for accelerated bone fracture healing.Discover nano · 2026Article
- Beyond M1/M2: The Pivotal Role of Macrophage Metabolic Reprogramming in Chronic Bone Disease and Targeted Intervention.International journal of molecular sciences · 2026Review
- pH-Responsive Cinnamaldehyde-Arginine Nanoprodrug for Targeted Rheumatoid Arthritis Therapy via Antioxidant Activity and Macrophage Reprogramming.Antioxidants (Basel, Switzerland) · 2026Article
- Multi-cohort Analysis Reveals Microbiome Signatures Associated with Drug Response in New-Onset Rheumatoid Arthritis.bioRxiv : the preprint server for biology · 2026Article
- Targeting amino acid metabolic pathways: a novel therapeutic strategy for hyperuricemia-associated complications.Amino acids · 2026Review
- Self-Assembled Myricetin-Arginine Conjugate Nanozymes for Targeted Suppression of Joint Inflammation and Osteoclastogenesis in Rheumatoid Arthritis.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Stereoselective design of amino acid bioconjugates: targeting strategies and physicochemical optimization.RSC medicinal chemistry · 2026Review
- Taurine transporter SLC6A6 expression promotes mesenchymal stromal cell function.Cell death & disease · 2026Article
- Article
- Amino acid metabolism modulates macrophage polarization: implications for autoimmune-related diseases.Frontiers in immunology · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
19 authors at 6 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo investigate the effect of the L-arginine metabolism on arthritis and inflammation-mediated bone loss.
methodsL-arginine was applied to three arthritis models (collagen-induced arthritis, serum-induced arthritis and human TNF transgenic mice). Inflammation was assessed clinically and histologically, while bone changes were quantified by μCT and histomorphometry. In vitro, effects of L-arginine on osteoclast differentiation were analysed by RNA-seq and mass spectrometry (MS). Seahorse, Single Cell ENergetIc metabolism by profilIng Translation inHibition and transmission electron microscopy were used for detecting metabolic changes in osteoclasts. Moreover, arginine-associated metabolites were measured in the serum of rheumatoid arthritis (RA) and pre-RA patients.
resultsL-arginine inhibited arthritis and bone loss in all three models and directly blocked TNFα-induced murine and human osteoclastogenesis. RNA-seq and MS analyses indicated that L-arginine switched glycolysis to oxidative phosphorylation in inflammatory osteoclasts leading to increased ATP production, purine metabolism and elevated inosine and hypoxanthine levels. Adenosine deaminase inhibitors blocking inosine and hypoxanthine production abolished the inhibition of L-arginine on osteoclastogenesis in vitro and in vivo. Altered arginine levels were also found in RA and pre-RA patients.
conclusionOur study demonstrated that L-arginine ameliorates arthritis and bone erosion through metabolic reprogramming and perturbation of purine metabolism in osteoclasts.
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