Evidence map›Paper›PMID 25537398›Full record

ArticlePflugers Archiv : European journal of physiology2015

Impedance analysis of GPCR-mediated changes in endothelial barrier function: overview and fundamental considerations for stable and reproducible measurements.

Judith A Stolwijk, Khalid Matrougui, Christian W Renken, Mohamed Trebak

Abstract read
In one paragraph

Article in Pflugers Archiv : European journal of physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing 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

58 citing papers in PubMed.

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  10. Modulation of the Blood-Brain Barrier by Sigma-1R Activation.International journal of molecular sciences · 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

4 authors.

Judith A StolwijkThe SUNY College of Nanoscale Science and Engineering (CNSE), SUNY Polytechnic Institute, State University of New York, 257 Fuller Rd., Albany, NY, 12203, USA.
Khalid MatrouguiDepartment of Physiological Sciences, East Virginia Medical School, Norfolk, VA, USA.
Christian W RenkenApplied BioPhysics Inc., Troy, NY, USA.
Mohamed TrebakThe SUNY College of Nanoscale Science and Engineering (CNSE), SUNY Polytechnic Institute, State University of New York, 257 Fuller Rd., Albany, NY, 12203, USA. mtrebak@albany.edu.

Funding

Receptor-regulated Ca2+ Entry Pathways in Smooth MuscleR01HL097111 · NHLBI · STATE UNIVERSITY OF NEW YORK AT ALBANY · PI TREBAK, MOHAMED · 2010 to 2019
$3.7M
Mechanisms of Coronary Arteriolar Dysfunction in Type 2 DiabetesR01HL095566 · NHLBI · TULANE UNIVERSITY OF LOUISIANA · PI MATROUGUI, KHALID · 2010 to 2014
$1.8M
Leukotriene C4 and STIM/Orai channels in airway smooth muscle remodelingR01HL123364 · NHLBI · STATE UNIVERSITY OF NEW YORK AT ALBANY · PI TREBAK, MOHAMED · 2014 to 2017
$1.5M
NHLBI NIH HHS R01 HL095566NHLBI NIH HHS R01HL095566NHLBI NIH HHS R01 HL097111NHLBI NIH HHS R01HL097111NHLBI NIH HHS R01 HL123364
6 · The paper itself

Abstract

The past 20 years has seen significant growth in using impedance-based assays to understand the molecular underpinning of endothelial and epithelial barrier function in response to physiological agonists and pharmacological and toxicological compounds. Most studies on barrier function use G protein-coupled receptor (GPCR) agonists which couple to fast and transient changes in barrier properties. The power of impedance-based techniques such as electric cell-substrate impedance sensing (ECIS) resides in its ability to detect minute changes in cell layer integrity label-free and in real-time ranging from seconds to days. We provide a comprehensive overview of the biophysical principles, applications, and recent developments in impedance-based methodologies. Despite extensive application of impedance analysis in endothelial barrier research, little attention has been paid to data analysis and critical experimental variables, which are both essential for signal stability and reproducibility. We describe the rationale behind common ECIS data presentation and interpretation and illustrate practical guidelines to improve signal intensity by adapting technical parameters such as electrode layout, monitoring frequency, or parameter (resistance versus impedance magnitude). Moreover, we discuss the impact of experimental parameters, including cell source, liquid handling, and agonist preparation on signal intensity and kinetics. Our discussions are supported by experimental data obtained from human microvascular endothelial cells challenged with three GPCR agonists, thrombin, histamine, and sphingosine-1-phosphate.

Indexed as

Electric ImpedanceAlgorithmsCells, CulturedElectrophysiologyEndothelial CellsEndothelium, VascularHumansMembrane PotentialsReceptors, G-Protein-CoupledReceptors, G-Protein-CoupledBarrier functionECISEndothelial cellsImpedanceResistanceTEER

Identifiers

PMID25537398
PMCPMC4480219

What OpenQuestion holds

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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.