ArticleLife science alliance2021
Increased exosome secretion in neurons aging in vitro by NPC1-mediated endosomal cholesterol buildup.
Article in Life science alliance, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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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.
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Who cites it
18 citing papers in PubMed, 35 citations in OpenAlex.
- Mechanisms of Brain Aging and Their Links to Alzheimer's and Parkinson's Disease Pathology.International journal of molecular sciences · 2026Review
- Dysregulation of Extracellular Vesicle Concentration, MicroRNAs, and Surface Proteins in Patients With Niemann-Pick Disease Type C.Journal of extracellular biology · 2026Article
- Exosomes in Clinical Laboratory: From Biomarker Discovery to Diagnostic Implementation.Medicina (Kaunas, Lithuania) · 2025Review
- Physicochemical Modulation Strategies for Mass Production of Extracellular Vesicle.Tissue engineering and regenerative medicine · 2025Review
- Role of Toll-like receptors in exosome biogenesis and angiogenesis capacity.BioImpacts : BI · 2025Review
- Increased levels of extracellular matrix proteins associated with extracellular vesicles from brains of aged mice.Aging cell · 2025Article
- Extracellular vesicles in Niemann pick disease type C: current knowledge and future opportunities.Frontiers in cellular neuroscience · 2025Review
- Stem-cell-derived extracellular vesicles in neurodegeneration and neuroaging: therapeutic potential and challenges.Extracellular vesicles and circulating nucleic acids · 2025Review
- Enhanced mGluRCell death & disease · 2024Article
- The Rubicon-WIPI axis regulates exosome biogenesis during ageing.Nature cell biology · 2024Article
- Biogenesis and secretion of mitovesicles, small extracellular vesicles of mitochondrial origin at the crossroads between brain health and disease.Current opinion in physiology · 2024Article
- The Aging Lacrimal Gland of Female C57BL/6J Mice Exhibits Multinucleate Macrophage Infiltration Associated With Lipid Dysregulation.Investigative ophthalmology & visual science · 2024Article
- Chemo-small extracellular vesicles released in cisplatin-resistance ovarian cancer cells are regulated by the lysosomal function.Journal of extracellular biology · 2024Article
- Extracellular vesicles from senescent mesenchymal stromal cells are defective and cannot prevent osteoarthritis.Journal of nanobiotechnology · 2024Article
- Kinetic modelling of sterol transport between plasma membrane and endo-lysosomes based on quantitative fluorescence and X-ray imaging data.Frontiers in cell and developmental biology · 2023Article
- Sex Differentially Alters Secretion of Brain Extracellular Vesicles During Aging: A Potential Mechanism for Maintaining Brain Homeostasis.Neurochemical research · 2022Article
- Review
- Extracellular Vesicles Derived from Young Neural Cultures Attenuate Astrocytic Reactivity In Vitro.International journal of molecular sciences · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
As neurons age, they show a decrease in their ability to degrade proteins and membranes. Because undegraded material is a source of toxic products, defects in degradation are associated with reduced cell function and survival. However, there are very few dead neurons in the aging brain, suggesting the action of compensatory mechanisms. We show in this work that ageing neurons in culture show large multivesicular bodies (MVBs) filled with intralumenal vesicles (ILVs) and secrete more small extracellular vesicles than younger neurons. We also show that the high number of ILVs is the consequence of the accumulation of cholesterol in MVBs, which in turn is due to decreased levels of the cholesterol extruding protein NPC1. NPC1 down-regulation is the consequence of a combination of upregulation of the NPC1 repressor microRNA 33, and increased degradation, due to Akt-mTOR targeting of NPC1 to the phagosome. Although releasing more exosomes can be beneficial to old neurons, other cells, neighbouring and distant, can be negatively affected by the waste material they contain.
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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.