Evidence map›Paper›PMID 29748552›Full record

ArticleScientific reports2018

Pb(II) Induces Scramblase Activation and Ceramide-Domain Generation in Red Blood Cells.

Hasna Ahyayauch, Aritz B García-Arribas, Jesús Sot, Emilio J González-Ramírez, Jon V Busto, Bingen G Monasterio, Noemi Jiménez-Rojo, F Xabier Contreras, Adela Rendón-Ramírez, Cesar Martin and 2 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.5field-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

16 citing papers in PubMed, 34 citations in OpenAlex.

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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

12 authors at 4 institutions in 3 countries.

Hasna AhyayauchInstituto Biofisika (CSIC, UPV/EHU), 48080, Bilbao, Spain.
Aritz B García-ArribasInstituto Biofisika (CSIC, UPV/EHU), 48080, Bilbao, Spain.
Jesús SotInstituto Biofisika (CSIC, UPV/EHU), 48080, Bilbao, Spain.
Emilio J González-RamírezInstituto Biofisika (CSIC, UPV/EHU), 48080, Bilbao, Spain.
Jon V BustoInstituto Biofisika (CSIC, UPV/EHU), 48080, Bilbao, Spain.
Bingen G MonasterioInstituto Biofisika (CSIC, UPV/EHU), 48080, Bilbao, Spain.
Noemi Jiménez-RojoInstituto Biofisika (CSIC, UPV/EHU), 48080, Bilbao, Spain.
F Xabier ContrerasInstituto Biofisika (CSIC, UPV/EHU), 48080, Bilbao, Spain.
Adela Rendón-RamírezInstituto Biofisika (CSIC, UPV/EHU), 48080, Bilbao, Spain.
Cesar MartinInstituto Biofisika (CSIC, UPV/EHU), 48080, Bilbao, Spain.
Alicia AlonsoInstituto Biofisika (CSIC, UPV/EHU), 48080, Bilbao, Spain.
Félix M GoñiInstituto Biofisika (CSIC, UPV/EHU), 48080, Bilbao, Spain. felix.goni@ehu.eus.
University of the Basque Country · ESFundación Biofísica Bizkaia · ESBiofisika · ESNCCR Chemical Biology - Visualisation and Control of Biological Processes Using Chemistry · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mechanisms of Pb(II) toxicity have been studied in human red blood cells using confocal microscopy, immunolabeling, fluorescence-activated cell sorting and atomic force microscopy. The process follows a sequence of events, starting with calcium entry, followed by potassium release, morphological change, generation of ceramide, lipid flip-flop and finally cell lysis. Clotrimazole blocks potassium channels and the whole process is inhibited. Immunolabeling reveals the generation of ceramide-enriched domains linked to a cell morphological change, while the use of a neutral sphingomyelinase inhibitor greatly delays the process after the morphological change, and lipid flip-flop is significantly reduced. These facts point to three major checkpoints in the process: first the upstream exchange of calcium and potassium, then ceramide domain formation, and finally the downstream scramblase activation necessary for cell lysis. In addition, partial non-cytotoxic cholesterol depletion of red blood cells accelerates the process as the morphological change occurs faster. Cholesterol could have a role in modulating the properties of the ceramide-enriched domains. This work is relevant in the context of cell death, heavy metal toxicity and sphingolipid signaling.

Indexed as

AnimalsCeramidesCHO CellsCricetulusEnzyme ActivationErythrocytesHemolysisHumansLeadPhospholipid Transfer ProteinsCeramidesLeadPhospholipid Transfer Proteins

Identifiers

PMID29748552
PMCPMC5945622
OpenAlexW2800676564

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.