Evidence map›Paper›PMID 27375084›Full record

ArticleScientific reports2016

Intercellular transfer of P-glycoprotein in human blood-brain barrier endothelial cells is increased by histone deacetylase inhibitors.

Andreas Noack, Sandra Noack, Manuela Buettner, Hassan Y Naim, Wolfgang Löscher

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.6field-weighted citation impact, top 27% 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

12 citing papers in PubMed, 27 citations in OpenAlex.

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  12. Mechanism of drug extrusion by brain endothelial cells via lysosomal drug trapping and disposal by neutrophils.Proceedings of the National Academy of Sciences of the United States of America · 2018
    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

5 authors at 2 institutions in 1 country.

Andreas NoackFrom the Department of Pharmacology, Toxicology, and Pharmacy, University of Veterinary Medicine Hannover, Germany.
Sandra NoackDepartment of Trauma Surgery, Hannover Medical School, Germany.
Manuela BuettnerInstitute of Laboratory Animal Science, Hannover Medical School, Germany.
Hassan Y NaimDepartment of Physiological Chemistry, University of Veterinary Medicine Hannover, Germany.
Wolfgang LöscherFrom the Department of Pharmacology, Toxicology, and Pharmacy, University of Veterinary Medicine Hannover, Germany.
Medizinische Hochschule Hannover · DEUniversity of Veterinary Medicine Hannover, Foundation · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The blood-brain barrier (BBB) controls the entry of compounds into the brain, thereby regulating brain homeostasis. Efflux transporters such as P-glycoprotein (Pgp) significantly contribute to BBB function. Multiple signaling pathways modulate the expression and activity of Pgp in response to xenobiotics and disease. A non-genetic way of intercellular transfer of Pgp occurs in cancer cells, but whether this also occurs in non-cancer cells such as endothelial cells that form the BBB is not known. A human brain endothelial cell line (hCMEC/D3) was used to study whether cell-to-cell Pgp transfer occurs during co-culturing with Pgp-EGFP expressing hCMEC/D3 cells. The Pgp-EGFP fusion protein was transferred from donor to recipient cells by cell-to-cell contact and Pgp-EGFP enriched vesicles, which were exocytosed by donor cells and endocytosed by adherent recipient cells. Flow cytometry experiments with the Pgp substrate eFLUXX-ID Gold demonstrated that the transferred Pgp is functional in the recipient cells. Exposure of the donor cells with inhibitors of histone deacetylases (HDACs) resulted in an enhanced intercellular Pgp transfer. Non-genetic transfer of a resistance phenotype and its regulation by HDACs is a novel mechanism of altering BBB functionality. This mechanism may have important implications for understanding drug-induced alterations in Pgp expression and activity.

Indexed as

ATP Binding Cassette Transporter, Subfamily B, Member 1Blood-Brain BarrierBrainCell LineCell SeparationCoculture TechniquesEndothelial CellsFlow CytometryGreen Fluorescent ProteinsHistone Deacetylase InhibitorsHistone DeacetylasesHumansSignal TransductionTranscytosisTransgenesATP Binding Cassette Transporter, Subfamily B, Member 1Green Fluorescent ProteinsHistone Deacetylase InhibitorsHistone Deacetylases

Identifiers

PMID27375084
PMCPMC4931680
OpenAlexW2470618144

What OpenQuestion holds

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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.