Evidence map›Paper›PMID 32053777›Full record

ArticleBiophysical journal2020

Cell-Derived Plasma Membrane Vesicles Are Permeable to Hydrophilic Macromolecules.

Allison D Skinkle, Kandice R Levental, Ilya Levental

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

17 citing papers in PubMed, 35 citations in OpenAlex.

  1. Protein-enhanced small molecule disruptors of ordered membrane domains.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  6. Experimentally determined leaflet-leaflet phase diagram of an asymmetric lipid bilayer.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
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  12. Review
  13. Critical Phenomena in Plasma Membrane Organization and Function.Annual review of physical chemistry · 2021
    Review
  14. Review
  15. Article
  16. Molecular height measurement by cell surface optical profilometry (CSOP).Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  17. Article
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

3 authors at 3 institutions in 1 country.

Allison D SkinkleDepartment of Integrative Biology and Pharmacology, University of Texas Health Science Center at Houston, Houston, Texas; Biological and Biomedical Sciences Program, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
Kandice R LeventalDepartment of Integrative Biology and Pharmacology, University of Texas Health Science Center at Houston, Houston, Texas.
Ilya LeventalDepartment of Integrative Biology and Pharmacology, University of Texas Health Science Center at Houston, Houston, Texas. Electronic address: ilya.levental@uth.tmc.edu.
The University of Texas Health Science Center · USThe University of Texas Health Science Center at Houston · USUniversity of North Carolina at Chapel Hill · US

Funding

The functional organization of mammalian membranes-Equipment SupplementR35GM134949 · NIGMS · UNIVERSITY OF VIRGINIA · PI Ilya Levental · 2020 to 2026
$3.8M
Lipidomic, biophysical, and functional differentiation of Mesenchymal Stem Cell membranesR01GM114282 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI LEVENTAL, ILYA · 2015 to 2019
$1.7M
Effects of lipidomic diversity on GPCRR01GM120351 · NIGMS · UNIVERSITY OF DELAWARE · PI LYMAN, EDWARD RAY · 2017 to 2021
$1.6M
Structural determinants and functional consequences of protein partitioning to ordered membrane microdomains.R01GM124072 · NIGMS · UNIVERSITY OF VIRGINIA · PI LEVENTAL, ILYA · 2017 to 2019
$961k
NIGMS NIH HHS R01 GM114282NIGMS NIH HHS R01 GM120351NIGMS NIH HHS R01 GM124072NIGMS NIH HHS R35 GM134949
6 · The paper itself

Abstract

Giant plasma membrane vesicles (GPMVs) are a widely used experimental platform for biochemical and biophysical analysis of isolated mammalian plasma membranes (PMs). A core advantage of these vesicles is that they maintain the native lipid and protein diversity of the PM while affording the experimental flexibility of synthetic giant vesicles. In addition to fundamental investigations of PM structure and composition, GPMVs have been used to evaluate the binding of proteins and small molecules to cell-derived membranes and the permeation of drug-like molecules through them. An important assumption of such experiments is that GPMVs are sealed, i.e., that permeation occurs by diffusion through the hydrophobic core rather than through hydrophilic pores. Here, we demonstrate that this assumption is often incorrect. We find that most GPMVs isolated using standard preparations are passively permeable to various hydrophilic solutes as large as 40 kDa, in contrast to synthetic giant unilamellar vesicles. We attribute this leakiness to stable, relatively large, and heterogeneous pores formed by rupture of vesicles from cells. Finally, we identify preparation conditions that minimize poration and allow evaluation of sealed GPMVs. These unexpected observations of GPMV poration are important for interpreting experiments utilizing GPMVs as PM models, particularly for drug permeation and membrane asymmetry.

Indexed as

OrganellesUnilamellar LiposomesAnimalsBiophysicsCell MembraneDiffusionUnilamellar Liposomes

Identifiers

PMID32053777
PMCPMC7091462
OpenAlexW3003473216

What OpenQuestion holds

Textmetadata
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.