ArticleJournal of extracellular vesicles2023
Helicobacter pylori-derived outer membrane vesicles contribute to Alzheimer's disease pathogenesis via C3-C3aR signalling.
Article in Journal of extracellular vesicles, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 100 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
100 citing papers in PubMed, 1 synthesis or guideline pooled it, 120 citations in OpenAlex.
- Bacterial extracellular vesicles - brain invaders? A systematic review.Frontiers in molecular neuroscience · 2023Pooled it
- Branched-chain amino acids and gut microbiota: coregulation and impact on neurological function via the gut-brain axis.Gut microbes · 2026Review
- From Helicobacter pylori CagA to Cross-Kingdom Amyloid Control: Emerging Anti-amyloid Biology, Mechanistic Paradoxes, and Translational Opportunities.The protein journal · 2026Review
- Organoids: Key advances, optimization, and technological iterations in their application to neurodegenerative diseases.Neural regeneration research · 2026Article
- Review
- Modulating the Gut-Microbiota-Brain Axis in Alzheimer's Disease: Therapeutic Potential of Nutritional and Metabolic Factors.CNS neuroscience & therapeutics · 2026Review
- C3aR inhibition alleviates cerebral ischemia-reperfusion injury via STING-mediated ferroptosis through SLC7A11/GPX4.iScience · 2026Article
- Article
- Bidirectional communication between the gut microbiota and the central nervous system.Neural regeneration research · 2026Article
- Oral Microbial Extracellular Vesicles as Novel Mediators of Alzheimer's Pathogenesis: A Critical Review of the Periodontal-Brain Axis.Neurotoxicity research · 2026Review
- Beyond the Stomach: Exploring the Role ofExpert reviews in molecular medicine · 2026Review
- The Role of Gut Microbiota-Derived Extracellular Vesicles in Post-Anesthesia Neuroinflammation and Cognitive Impairment.Journal of Korean Neurosurgical Society · 2026Review
- Extracellular vesicle-mediated bidirectional communication between the brain and peripheral organs in Alzheimer's disease: evidence, mechanisms, and translational perspectives.Journal of nanobiotechnology · 2026Review
- Choosing the Right Extracellular Vesicle: Cross-Kingdom Immunological Functions Linking Molecular Mechanisms to Therapeutic Applications.Biomolecules · 2026Review
- Helicobacter pylori-derived outer membrane vesicles: Pathogenic roles, microbiota interactions, and biomedical applications.Journal of advanced research · 2026Review
- Bacterial extracellular vesicles in the brain: Pathological effects and therapeutic possibilities.Neural regeneration research · 2026Article
- Escherichia coli Nissle 1917 alleviates Alzheimer's disease in mice through OmpA-containing outer membrane vesicles.Cell reports. Medicine · 2026Article
- Characterization ofMicroorganisms · 2026Article
- Transcriptomic Insights Into Alzheimer's Disease: Differentially Expressed Genes and Cholesterol Metabolism.CNS neuroscience & therapeutics · 2026Article
- Bacterial outer membrane vesicles: a smart platform for biomedical applications.Cell communication and signaling : CCS · 2026Review
40 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
13 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The gut microbiota represents a diverse and dynamic population of microorganisms that can influence the health of the host. Increasing evidence supports the role of the gut microbiota as a key player in the pathogenesis of neurodegenerative diseases, including Alzheimer's disease (AD). Unfortunately, the mechanisms behind the interplay between gut pathogens and AD are still elusive. It is known that bacteria-derived outer membrane vesicles (OMVs) act as natural carriers of virulence factors that are central players in the pathogenesis of the bacteria. Helicobacter pylori (H. pylori) is a common gastric pathogen and H. pylori infection has been associated with an increased risk to develop AD. Here, we are the first to shed light on the role of OMVs derived from H. pylori on the brain in healthy conditions and on disease pathology in the case of AD. Our results reveal that H. pylori OMVs can cross the biological barriers, eventually reaching the brain. Once in the brain, these OMVs are taken up by astrocytes, which induce activation of glial cells and neuronal dysfunction, ultimately leading to exacerbated amyloid-β pathology and cognitive decline. Mechanistically, we identified a critical role for the complement component 3 (C3)-C3a receptor (C3aR) signalling in mediating the interaction between astrocytes, microglia and neurons upon the presence of gut H. pylori OMVs. Taken together, our study reveals that H. pylori has a detrimental effect on brain functionality and accelerates AD development via OMVs and C3-C3aR signalling.
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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 Socratic graph.