Evidence map›Paper›PMID 31999342›Full record

ArticleJournal of neuropathology and experimental neurology2020

Expression and Cellular Distribution of P-Glycoprotein and Breast Cancer Resistance Protein in Amyotrophic Lateral Sclerosis Patients.

Erwin A van Vliet, Anand M Iyer, Lucia Mesarosova, Hilal Çolakoglu, Jasper J Anink, Olaf van Tellingen, Nicholas J Maragakis, Jeremy Shefner, Ton Bunt, Eleonora Aronica

Open access · bronzeAbstract read
In one paragraph

Article in Journal of neuropathology and experimental neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.5field-weighted citation impact, top 15% 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

19 citing papers in PubMed, 35 citations in OpenAlex.

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  8. Blood-CNS barrier dysfunction in amyotrophic lateral sclerosis: Proposed mechanisms and clinical implications.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
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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

10 authors at 6 institutions in 2 countries.

Erwin A van VlietFrom the Amsterdam UMC, University of Amsterdam, Department of (Neuro)Pathology, Amsterdam Neuroscience.
Anand M IyerFrom the Amsterdam UMC, University of Amsterdam, Department of (Neuro)Pathology, Amsterdam Neuroscience.
Lucia MesarosovaFrom the Amsterdam UMC, University of Amsterdam, Department of (Neuro)Pathology, Amsterdam Neuroscience.
Hilal ÇolakogluDivision of Pharmacology, The Netherlands Cancer Institute (HÇ, OvT), Amsterdam, The Netherlands.
Jasper J AninkFrom the Amsterdam UMC, University of Amsterdam, Department of (Neuro)Pathology, Amsterdam Neuroscience.
Olaf van TellingenDivision of Pharmacology, The Netherlands Cancer Institute (HÇ, OvT), Amsterdam, The Netherlands.
Nicholas J MaragakisDepartment of Neurology, The Johns Hopkins University School of Medicine, Baltimore, Maryland.
Jeremy ShefnerDepartment of Neurology, Barrow Neurological Institute, Phoenix, Arizona.
Ton BuntIzumi Biosciences, Inc., Lexington, Massachusetts.
Eleonora AronicaFrom the Amsterdam UMC, University of Amsterdam, Department of (Neuro)Pathology, Amsterdam Neuroscience.
Amsterdam Neuroscience · NLThe Netherlands Cancer Institute · NLBarrow Neurological Institute · USIzumi Biosciences · USJohns Hopkins University · USNetherlands Institute for Neuroscience · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

For amyotrophic lateral sclerosis (ALS), achieving and maintaining effective drug levels in the brain is challenging due to the activity of ATP-binding cassette (ABC) transporters which efflux drugs that affect drug exposure and response in the brain. We investigated the expression and cellular distribution of the ABC transporters P-glycoprotein (P-gp) and breast cancer resistance protein (BCRP) using immunohistochemistry in spinal cord (SC), motor cortex, and cerebellum from a large cohort of genetically well characterized ALS patients (n = 25) and controls (n = 14). The ALS group included 17 sporadic (sALS) and 8 familial (fALS) patients. Strong P-gp expression was observed in endothelial cells in both control and ALS specimens. Immunohistochemical analysis showed higher P-gp expression in reactive astroglial cells in both gray (ventral horn) and white matter of the SC, as well as in the motor cortex of all ALS patients, as compared with controls. BCRP expression was higher in glia in the SC and in blood vessels and glia in the motor cortex of ALS patients, as compared with controls. P-gp and BCRP immunoreactivity did not differ between sALS and fALS cases. The upregulation of both ABC transporters in the brain may explain multidrug resistance in ALS patients and has implications for the use of both approved and experimental therapeutics.

Indexed as

AdultAgedAmyotrophic Lateral SclerosisAstrocytesATP Binding Cassette Transporter, Subfamily B, Member 1ATP Binding Cassette Transporter, Subfamily G, Member 2CerebellumFemaleHumansMaleMiddle AgedMotor CortexNeoplasm ProteinsSpinal CordABCG2 protein, humanATP Binding Cassette Transporter, Subfamily B, Member 1ATP Binding Cassette Transporter, Subfamily G, Member 2Neoplasm ProteinsAmyotrophic lateral sclerosis (ALS)AstrocytesBCRPBlood vesselsMotor cortexMultidrug resistanceP-glycoprotein (P-gp)Spinal cord

Identifiers

PMID31999342
PMCPMC7036662
OpenAlexW3003742819

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.