ArticleCommunications medicine2023
O-GlcNAcylation is essential for therapeutic mitochondrial transplantation.
Article in Communications medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
What it found
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The trial behind it
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Who cites it
13 citing papers in PubMed, 17 citations in OpenAlex.
- O-GlcNAcylation: A molecular switch linking brain health to neurodegeneration.Neural regeneration research · 2026Article
- O-GlcNAcylation: A bridge for regulating the function of the "heart-kidney-bone axis".Biochemistry and biophysics reports · 2026Review
- Therapeutic Potential of Mitochondrial Transplantation with Focus on DBD.International journal of molecular sciences · 2026Review
- Unlocking extracellular mitochondria from bench to clinical application in stroke.Stem cells translational medicine · 2025Review
- Zscan4 as a Candidate Conveyor of Early Developmental Defects in O-GlcNAc Transferase Intellectual Disability.Molecular & cellular proteomics : MCP · 2025Article
- Effects of mitochondrial O-GlcNAcylation in pericytes after mechanical injury.Brain research · 2025Article
- Review
- Brain O-GlcNAcylation: Bridging physiological functions, disease mechanisms, and therapeutic applications.Molecular psychiatry · 2025Review
- The role of homogenization cycles and Poloxamer 188 on the quality of mitochondria isolated for use in mitochondrial transplantation therapy.Scientific reports · 2025Article
- Review
- O-linked β-N-acetylglucosamine modification in diabetic foot ulcer pathogenesis.Burns & trauma · 2025Review
- Recommendations for mitochondria transfer and transplantation nomenclature and characterization.Nature metabolism · 2025Review
- Review
Corrections and comments
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Authors and funding
12 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundTransplantation of mitochondria is increasingly explored as a novel therapy in central nervous system (CNS) injury and disease. However, there are limitations in safety and efficacy because mitochondria are vulnerable in extracellular environments and damaged mitochondria can induce unfavorable danger signals.
methodsMitochondrial O-GlcNAc-modification was amplified by recombinant O-GlcNAc transferase (OGT) and UDP-GlcNAc. O-GlcNAcylated mitochondrial proteins were identified by mass spectrometry and the antiglycation ability of O-GlcNAcylated DJ1 was determined by loss-of-function via mutagenesis. Therapeutic efficacy of O-GlcNAcylated mitochondria was assessed in a mouse model of transient focal cerebral ischemia-reperfusion. To explore translational potential, we evaluated O-GlcNAcylated DJ1 in CSF collected from patients with subarachnoid hemorrhagic stroke (SAH).
resultsWe show that isolated mitochondria are susceptible to advanced glycation end product (AGE) modification, and these glycated mitochondria induce the receptor for advanced glycation end product (RAGE)-mediated autophagy and oxidative stress when transferred into neurons. However, modifying mitochondria with O-GlcNAcylation counteracts glycation, diminishes RAGE-mediated effects, and improves viability of mitochondria recipient neurons. In a mouse model of stroke, treatment with extracellular mitochondria modified by O-GlcNAcylation reduces neuronal injury and improves neurologic deficits. In cerebrospinal fluid (CSF) samples from SAH patients, levels of O-GlcNAcylation in extracellular mitochondria correlate with better clinical outcomes.
conclusionsThese findings suggest that AGE-modification in extracellular mitochondria may induce danger signals, but O-GlcNAcylation can prevent glycation and improve the therapeutic efficacy of transplanted mitochondria in the CNS.
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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.