Evidence map›Paper›PMID 35883702›Full record

ArticleCells2022

Functional Expression of Multidrug-Resistance (MDR) Transporters in Developing Human Fetal Brain Endothelial Cells.

Phetcharawan Lye, Enrrico Bloise, Guinever E Imperio, David Chitayat, Stephen G Matthews

Open access · goldAbstract read
In one paragraph

Article in Cells, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.4field-weighted citation impact, top 17% 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

11 citing papers in PubMed, 13 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

5 authors at 4 institutions in 2 countries.

Phetcharawan LyeDepartment of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada.
Enrrico BloiseDepartment of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada.ORCID 0000-0003-0275-8686
Guinever E ImperioLunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON M5G 1X5, Canada.
David ChitayatThe Prenatal Diagnosis and Medical Genetics Program, Department of Obstetrics and Gynecology, Mount Sinai Hospital, University of Toronto, Toronto, ON M5S 1A8, Canada.
Stephen G MatthewsDepartment of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada.ORCID 0000-0002-9654-9940
University of Toronto · CALunenfeld-Tanenbaum Research Institute · CAMount Sinai Hospital · CAUniversidade Federal de Minas Gerais · BR

Funding

CIHR FDN-148368
6 · The paper itself

Abstract

There is little information about the functional expression of the multidrug resistance (MDR) transporters P-glycoprotein (P-gp, encoded by ABCB1) and breast cancer resistance protein (BCRP/ABCG2) in the developing blood−brain barrier (BBB). We isolated and cultured primary human fetal brain endothelial cells (hfBECs) from early and mid-gestation brains and assessed P-gp/ABCB1 and BCRP/ABCG2 expression and function, as well as tube formation capability. Immunolocalization of the von Willebrand factor (marker of endothelial cells), zonula occludens-1 and claudin-5 (tight junctions) was detected in early and mid-gestation-derived hfBECs, which also formed capillary-like tube structures, confirming their BEC phenotype. P-gp and BCRP immunostaining was detected in capillary-like tubes and in the cytoplasm and nucleus of hfBECs. P-gp protein levels in the plasma membrane and nuclear protein fractions, as well as P-gp protein/ABCB1 mRNA and BCRP protein levels decreased (p < 0.05) in hfBECs, from early to mid-gestation. No differences in P-gp or BCRP activity in hfBECs were observed between the two age groups. The hfBECs from early and mid-gestation express functionally competent P-gp and BCRP drug transporters and may thus contribute to the BBB protective phenotype in the conceptus from early stages of pregnancy.

Indexed as

ATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily B, Member 1ATP Binding Cassette Transporter, Subfamily BATP Binding Cassette Transporter, Subfamily G, Member 2BrainDrug Resistance, MultipleEndothelial CellsFemaleHumansNeoplasm ProteinsPregnancyABCB1 protein, humanABCG2 protein, humanATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily BATP Binding Cassette Transporter, Subfamily B, Member 1ATP Binding Cassette Transporter, Subfamily G, Member 2Neoplasm Proteinsbreast cancer resistance protein (BCRP/ABCG2)developing human blood–brain barrier (BBB)fetal brain endothelial cells (BECs)P-glycoprotein (P-gp/ABCB1)tube formation

Identifiers

PMID35883702
PMCPMC9323234
OpenAlexW4286434176

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.