Evidence map›Paper›PMID 33784071›Full record

ArticleAnalytical chemistry2021

Sizing Extracellular Vesicles Using Membrane Dyes and a Single Molecule-Sensitive Flow Analyzer.

Luca A Andronico, Yifei Jiang, Seung-Ryoung Jung, Bryant S Fujimoto, Lucia Vojtech, Daniel T Chiu

Abstract read
In one paragraph

Article in Analytical chemistry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Luca A AndronicoDepartment of Chemistry, University of Washington, Seattle 98195, Washington, United States.ORCID 0000-0002-4326-073X
Yifei JiangDepartment of Chemistry, University of Washington, Seattle 98195, Washington, United States.ORCID 0000-0003-1818-4541
Seung-Ryoung JungDepartment of Chemistry, University of Washington, Seattle 98195, Washington, United States.ORCID 0000-0002-1870-1433
Bryant S FujimotoDepartment of Chemistry, University of Washington, Seattle 98195, Washington, United States.
Lucia VojtechDepartment of Obstetrics and Gynecology, University of Washington, Seattle 98195, Washington, United States.ORCID 0000-0003-2343-0719
Daniel T ChiuDepartment of Chemistry, University of Washington, Seattle 98195, Washington, United States.ORCID 0000-0003-2964-9578

Funding

MicroRNAs in CNS-derived extracellular microvesicles as peripheral blood biomarkers for Alzheimer diseaseR01AG061383 · NIA · UNIVERSITY OF WASHINGTON · PI SHI, MIN · 2019 to 2023
$3.4M
Extracellular vesicle transport of brain-derived proteins to the blood in Alzheimer diseaseRF1AG068406 · NIA · UNIVERSITY OF WASHINGTON · PI SHI, MIN · 2020 to 2020
$3.0M
Characterization and quantification of CNS cell specific extracellular microvesicles in bloodR33MH118160 · NIMH · UNIVERSITY OF WASHINGTON · PI SHI, MIN · 2020 to 2022
$2.0M
Single Extracellular Vesicle Sorting and AnalysisUH3TR002874 · NCATS · UNIVERSITY OF WASHINGTON · PI CHIU, DANIEL T · 2021 to 2022
$2.0M
High-precision mapping of the spatial organization of synaptic-vesicle membrane proteinsR01MH113333 · NIMH · UNIVERSITY OF WASHINGTON · PI CHIU, DANIEL T · 2017 to 2021
$1.9M
Single Extracellular Vesicle Sorting and AnalysisUG3TR002874 · NCATS · UNIVERSITY OF WASHINGTON · PI CHIU, DANIEL T · 2019 to 2020
$813k
Extracellular vesicle transport of brain-derived proteins to the blood in Alzheimer diseaseR01AG068406 · NIA · UNIVERSITY OF WASHINGTON · PI SHI, MIN · 2024 to 2024
$704k
NCATS NIH HHS UG3 TR002874NCATS NIH HHS UH3 TR002874NIA NIH HHS R01 AG061383NIA NIH HHS R01 AG068406NIA NIH HHS RF1 AG068406NIMH NIH HHS R01 MH113333NIMH NIH HHS R33 MH118160
6 · The paper itself

Abstract

Extracellular vesicles (EVs) are membranous particles released by most cells in our body, which are involved in many cell-to-cell signaling processes. Given the nanometer sizes and heterogeneity of EVs, highly sensitive methods with single-molecule resolution are fundamental to investigating their biophysical properties. Here, we demonstrate the sizing of EVs using a fluorescence-based flow analyzer with single-molecule sensitivity. Using a dye that selectively partitions into the vesicle's membrane, we show that the fluorescence intensity of a vesicle is proportional to its diameter. We discuss the constraints in sample preparation which are inherent to sizing nanoscale vesicles with a fluorescent membrane dye and propose several guidelines to improve data consistency. After optimizing staining conditions, we were able to measure the size of vesicles in the range ∼35-300 nm, covering the spectrum of EV sizes. Lastly, we developed a method to correct the signal intensity from each vesicle based on its traveling speed inside the microfluidic channel, by operating at a high sampling rate (10 kHz) and measuring the time required for the particle to cross the laser beam. Using this correction, we obtained a threefold greater accuracy in EV sizing, with a precision of ±15-25%.

Indexed as

Extracellular VesiclesFlow CytometryFluorescent DyesLightStaining and LabelingFluorescent Dyes

Identifiers

PMID33784071
PMCPMC10243643

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

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.