Evidence map›Paper›PMID 32111925›Full record

ArticleScientific reports2020

Rigorous characterization of urinary extracellular vesicles (uEVs) in the low centrifugation pellet - a neglected source for uEVs.

Luca Musante, Sai Vineela Bontha, Sabrina La Salvia, Angela Fernandez-Piñeros, Joanne Lannigan, Thu H Le, Valeria Mas, Uta Erdbrügger

Abstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 1 pooled it
–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

49 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  17. Uromodulin and the study of urinary extracellular vesicles.Journal of extracellular biology · 2024
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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

8 authors.

Luca MusanteDivision of Nephrology and Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA.
Sai Vineela BonthaTransplant Research Institute, James D. Eason Transplant Institute, School of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA.
Sabrina La SalviaDivision of Nephrology and Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA.
Angela Fernandez-PiñerosTransplant Research Institute, James D. Eason Transplant Institute, School of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA.
Joanne LanniganSchool of Medicine, Flow Cytometry Core, University of Virginia, Charlottesville, VA, USA.
Thu H LeDepartment of Medicine, Division of Nephrology, University of Rochester Medical Center, Rochester, NY, USA.
Valeria MasTransplant Research Institute, James D. Eason Transplant Institute, School of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA.
Uta ErdbrüggerDivision of Nephrology and Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA. ue2u@virginia.edu.

Funding

Circulating and Urinary Microparticles as Markers of End-organ Damage in HypertensionK23HL126101 · NHLBI · UNIVERSITY OF VIRGINIA · PI ERDBRUEGGER, UTA · 2015 to 2019
$926k
ImageSteamXS10RR031633 · NCRR · UNIVERSITY OF VIRGINIA · PI BENDER, TIMOTHY P. · 2011 to 2011
$520k
In Vivo Optical Imaging Scanner for Small Animal ResearchS10RR025694 · NCRR · UNIVERSITY OF VIRGINIA · PI BERR, STUART S. · 2009 to 2009
$360k
NCRR NIH HHS S10 RR025694NCRR NIH HHS S10 RR031633NHLBI NIH HHS K23 HL126101
6 · The paper itself

Abstract

Urinary extracellular vesicles (uEVs) provide bio-markers for kidney and urogenital diseases. Centrifugation is the most common method used to enrich uEVs. However, a majority of studies to date have focused on the ultracentrifugation pellet, potentially losing a novel source of important biomarkers that could be obtained at lower centrifugation. Thus, the aim of this study is to rigorously characterize for the first time uEVs in the low speed pellet and determine the minimal volume of urine required for proteomic analysis (≥9.0 mL urine) and gene ontology classification identified 75% of the protein as extracellular exosomes. Cryo-Transmission Electron Microscopy (≥3.0 mL urine) provided evidence of a heterogeneous population of EVs for size and morphology independent of uromodulin filaments. Western blot detected several specific uEV kidney and EV markers (≥4.5 mL urine per lane). microRNAs quantification by qPCR was possible with urine volume as low as 0.5 mL. Particle enumeration with tunable resistive pulse sensing, nano particles tracking analysis and single EV high throughput imaging flow cytometry are possible starting from 0.5 and 3.0 mL of urine respectively. This work characterizes a neglected source of uEVs and provides guidance with regard to volume of urine necessary to carry out multi-omic studies and reveals novel aspects of uEV analysis such as autofluorescence of podocyte origin.

Indexed as

AdultBiomarkersCryoelectron MicroscopyExtracellular VesiclesFemaleFemale Urogenital DiseasesHumansKidneyMaleMale Urogenital DiseasesMiddle AgedProteomicsUltracentrifugationBiomarkers

Identifiers

PMID32111925
PMCPMC7048852

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Registered trials

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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.