ArticleCurrent protocols2024
Analyzing Extracellular Vesicle-associated DNA Using Transmission Electron Microscopy at the Single EV-level.
Article in Current protocols, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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
4 citing papers in PubMed.
- Porphyromonas gingivalis Outer Membrane Vesicles-Associated DNA Triggers Inflammation by Inducing IL-6 in Astrocytes.Molecular oral microbiology · 2026Article
- Liquid biopsy - a narrative review with an update on current US governmental clinical trials targeting immunotherapy.Future science OA · 2025Review
- Effect Analysis of Extracellular Vesicles in the Treatment of Bronchopulmonary Dysplasia via Different Drug Delivery and Administration Routes.International journal of nanomedicine · 2025Review
- Analyzing Extracellular Vesicle-associated DNA Using Transmission Electron Microscopy at the Single EV-level.Current protocols · 2024Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Extracellular vesicles (EVs) play an important role in cell-cell communication, carrying bioactive molecules including DNA. EV-associated DNA (EV-DNA) has created enormous interest in the field of biomarkers, particularly related to liquid biopsy. However, its analysis is challenging due to the nanoscale structure of EVs, the low abundance of EV-DNA, and surrounding biogenetic debate. Therefore, novel protocols to enhance the accurate detection of EV-DNA are essential to study its role in normal physiology and disease states. Here, we provide two protocols for confirming the presence of EV-DNA from biological samples. In the first protocol, ultrathin sectioning of EVs is combined with immunogold labeling to detect the presence of double-stranded (ds) DNA within the EV lumen using transmission electron microscopy (TEM). In the second protocol, whole-mount EV immunogold labeling allows detailed morphological analysis of EVs and their surface-associated DNA. Using TEM imaging, we have demonstrated that cancer-cell-derived individual EVs exhibit simultaneous positivity for dsDNA and the EV surface protein tetraspanin 9. We believe that this method can be used to label any proteins of interest inside as well as on the surface of EVs. This can aid in the characterization of single EVs and in the identification and verification of EV-associated biomarkers. © 2024 The Author(s). Current Protocols published by Wiley Periodicals LLC. Basic Protocol 1: EV isolation from cell-culture-conditioned medium, EV embedding, ultrathin sectioning, labeling, and imaging Basic Protocol 2: Whole-mount immunolabeling of EV-DNA.
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Registered trials
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