Evidence map›Paper›PMID 25976978›Full record

ArticleScientific reports2015

Real-time monitoring of cell protrusion dynamics by impedance responses.

Paolo Armando Gagliardi, Alberto Puliafito, Laura di Blasio, Federica Chianale, Desiana Somale, Giorgio Seano, Federico Bussolino, Luca Primo

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

24 citing papers in PubMed, 39 citations in OpenAlex.

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  10. Ion Channels in Gliomas-From Molecular Basis to Treatment.International journal of molecular sciences · 2023
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  15. RSU-1 Maintains Integrity ofG3 (Bethesda, Md.) · 2020
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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 at 2 institutions in 1 country.

Paolo Armando Gagliardi1] Department of Oncology, University of Torino, Torino, 10043, Italy [2] Candiolo Cancer Institute-FPO IRCCS, Candiolo, 10060, Italy.
Alberto PuliafitoCandiolo Cancer Institute-FPO IRCCS, Candiolo, 10060, Italy.
Laura di Blasio1] Department of Oncology, University of Torino, Torino, 10043, Italy [2] Candiolo Cancer Institute-FPO IRCCS, Candiolo, 10060, Italy.
Federica ChianaleCandiolo Cancer Institute-FPO IRCCS, Candiolo, 10060, Italy.
Desiana Somale1] Department of Oncology, University of Torino, Torino, 10043, Italy [2] Candiolo Cancer Institute-FPO IRCCS, Candiolo, 10060, Italy.
Giorgio Seano1] Department of Oncology, University of Torino, Torino, 10043, Italy [2] Candiolo Cancer Institute-FPO IRCCS, Candiolo, 10060, Italy.
Federico Bussolino1] Department of Oncology, University of Torino, Torino, 10043, Italy [2] Candiolo Cancer Institute-FPO IRCCS, Candiolo, 10060, Italy [3] Center for Molecular Systems Biology, University of Torino, 10124, Torino, Italy.
Luca Primo1] Department of Oncology, University of Torino, Torino, 10043, Italy [2] Candiolo Cancer Institute-FPO IRCCS, Candiolo, 10060, Italy [3] Center for Molecular Systems Biology, University of Torino, 10124, Torino, Italy.
University of Turin · ITIstituti di Ricovero e Cura a Carattere Scientifico · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cellular protrusions are highly dynamic structures involved in fundamental processes, including cell migration and invasion. For a cell to migrate, its leading edge must form protrusions, and then adhere or retract. The spatial and temporal coordination of protrusions and retraction is yet to be fully understood. The study of protrusion dynamics mainly relies on live-microscopy often coupled to fluorescent labeling. Here we report the use of an alternative, label-free, quantitative and rapid assay to analyze protrusion dynamics in a cell population based on the real-time recording of cell activity by means of electronic sensors. Cells are seeded on a plate covered with electrodes and their shape changes map into measured impedance variations. Upon growth factor stimulation the impedance increases due to protrusive activity and decreases following retraction. Compared to microscopy-based methods, impedance measurements are suitable to high-throughput studies on different cell lines, growth factors and chemical compounds. We present data indicating that this assay lends itself to dissect the biochemical signaling pathways controlling adhesive protrusions. Indeed, we show that the protrusion phase is sustained by actin polymerization, directly driven by growth factor stimulation. Contraction instead mainly relies on myosin action, pointing at a pivotal role of myosin in lamellipodia retraction.

Indexed as

Electric ImpedanceBridged Bicyclo Compounds, HeterocyclicCell Line, TumorCell MovementCell Surface ExtensionsCetuximabEpidermal Growth FactorHEK293 CellsHeLa CellsHepatocyte Growth FactorHeterocyclic Compounds, 4 or More RingsHumansMyosinsPseudopodiaThiazolidinesVascular Endothelial Growth Factor AblebbistatinBridged Bicyclo Compounds, HeterocyclicCetuximabEpidermal Growth FactorHepatocyte Growth FactorHeterocyclic Compounds, 4 or More RingsHGF protein, humanlatrunculin AMyosinsThiazolidinesVascular Endothelial Growth Factor AVEGFA protein, human

Identifiers

PMID25976978
PMCPMC4432390
OpenAlexW2262598979

What OpenQuestion holds

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LicenceCC BY
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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.