Evidence map›Paper›PMID 35013561›Full record

ArticleCommunications biology2022

Real time imaging of single extracellular vesicle pH regulation in a microfluidic cross-flow filtration platform.

Vladimir Riazanski, Gerardo Mauleon, Kilean Lucas, Samuel Walker, Adriana M Zimnicka, James L McGrath, Deborah J Nelson

Open access · goldAbstract read
In one paragraph

Article in Communications biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.4field-weighted citation impact, top 20% of its field
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

10 citing papers in PubMed, 18 citations in OpenAlex.

  1. Extension of the fluidics NTF-Biobank of polytraumatized patients with extracellular vesicles: improved vesicle preservation through local processing.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2026
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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

7 authors at 2 institutions in 1 country.

Vladimir RiazanskiDepartment of Pharmacological and Physiological Sciences, The University of Chicago, Chicago, IL, 60637, USA.
Gerardo MauleonDepartment of Pharmacological and Physiological Sciences, The University of Chicago, Chicago, IL, 60637, USA.
Kilean LucasDepartment of Biomedical Engineering, University of Rochester, Rochester, NY, 14627, USA.
Samuel WalkerDepartment of Biomedical Engineering, University of Rochester, Rochester, NY, 14627, USA.
Adriana M ZimnickaDepartment of Pharmacological and Physiological Sciences, The University of Chicago, Chicago, IL, 60637, USA.ORCID 0000-0001-5241-1010
James L McGrath *Department of Biomedical Engineering, University of Rochester, Rochester, NY, 14627, USA.ORCID 0000-0003-2017-8335
Deborah J Nelson *Department of Pharmacological and Physiological Sciences, The University of Chicago, Chicago, IL, 60637, USA. nelson@uchicago.edu.ORCID 0000-0002-2727-6491
University of Chicago · USUniversity of Rochester · US

Funding

VIRAL ONCOLOGY CORE FACILITYP30CA014599 · NCI · UNIVERSITY OF CHICAGO · PI MARK W. LINGEN · 1985 to 2026
$122.1M
NCI NIH HHS P30 CA014599U.S. Department of Defense (United States Department of Defense) CA170373U.S. Department of Health & Human Services | National Institutes of Health (NIH) HL25076
6 · The paper itself

Abstract

Extracellular vesicles (EVs) are cell-derived membranous structures carrying transmembrane proteins and luminal cargo. Their complex cargo requires pH stability in EVs while traversing diverse body fluids. We used a filtration-based platform to capture and stabilize EVs based on their size and studied their pH regulation at the single EV level. Dead-end filtration facilitated EV capture in the pores of an ultrathin (100 nm thick) and nanoporous silicon nitride (NPN) membrane within a custom microfluidic device. Immobilized EVs were rapidly exposed to test solution changes driven across the backside of the membrane using tangential flow without exposing the EVs to fluid shear forces. The epithelial sodium-hydrogen exchanger, NHE1, is a ubiquitous plasma membrane protein tasked with the maintenance of cytoplasmic pH at neutrality. We show that NHE1 identified on the membrane of EVs is functional in the maintenance of pH neutrality within single vesicles. This is the first mechanistic description of EV function on the single vesicle level.

Indexed as

AnimalsDiagnostic ImagingExtracellular VesiclesFiltrationHydrogen-Ion ConcentrationMiceMicrofluidic Analytical TechniquesMicrofluidics

Identifiers

PMID35013561
PMCPMC8748679
OpenAlexW4206518837

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.