Evidence map›Paper›PMID 26407213›Full record

ArticleXenobiotica; the fate of foreign compounds in biological systems2016

ATP-binding cassette proteins BCRP, MRP1 and P-gp expression and localization in the human umbilical cord.

Zoe Riches, Gurinder Walia, Jacob M Berman, Tricia E Wright, Abby C Collier

Open access · greenAbstract read
In one paragraph

Article in Xenobiotica; the fate of foreign compounds in biological systems, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.4field-weighted citation impact, top 34% 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

5 citing papers in PubMed, 9 citations in OpenAlex.

  1. Review
  2. Multidrug efflux transporter ABCG2: expression and regulation.Cellular and molecular life sciences : CMLS · 2021
    Review
  3. Article
  4. Article
  5. 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 1 institution in 1 country.

Zoe Richesa Faculty of Pharmaceutical Sciences , University of British Columbia , Vancouver , BC , Canada and.
Gurinder Waliaa Faculty of Pharmaceutical Sciences , University of British Columbia , Vancouver , BC , Canada and.
Jacob M Bermana Faculty of Pharmaceutical Sciences , University of British Columbia , Vancouver , BC , Canada and.
Tricia E Wrightb Department of Obstetrics , Gynecology and Women's Health, John A. Burns School of Medicine, Kapi'Olani Medical Center for Women and Children , Honolulu , HI , USA.
Abby C Colliera Faculty of Pharmaceutical Sciences , University of British Columbia , Vancouver , BC , Canada and.
University of British Columbia · CA

Funding

The Role of gp120 on Cardiovascular Disease in People Living with HIVU54MD007601 · NIMHD · UNIVERSITY OF HAWAII AT MANOA · PI Noemi Polgar · 2017 to 2026
$59.5M
RESEARCH DESIGN, BIOSTATISTICS AND RESEARCH ETHICS COREG12MD007601 · NIMHD · UNIVERSITY OF HAWAII AT MANOA · PI BERRY, MARLA J · 2012 to 2016
$13.0M
NIMHD NIH HHS G12 MD007601NIMHD NIH HHS MD007601NIMHD NIH HHS U54 MD007601
6 · The paper itself

Abstract

1. The umbilical cord is a direct conduit to the fetus hence transporters could have roles in partitioning substances between the maternal-placental-fetal units. Here we determined the expression and localization of the ATP-Binding Cassette (ABC) transporters BCRP (ABCG2), P-gp (ABCB1) and MRP1 (ABCC1) in human umbilical cords. 2. The mRNA for BCRP and MRP1 was detected in 25/25 samples, but P-gp was detected in only 5/25. ABC transporter mRNA expression relative to 18S was 25.6 ± 0.3, 26.5 ± 0.6 and 22.2 ± 0.2 cycles for BCRP, MRP1 and P-gp respectively. 3. Using a subset of 10 umbilical cords, BCRP protein was present in all samples (immunoblot) with positive correlation between mRNA and proteins (p = 0.07, r = 0.62) and between immunoblotting and immunohistochemistry (IHC) (p = 0.03, r = 0.67). P-gp protein was observed in 4/10 samples by both immunoblot and IHC, with no correlation between mRNA and protein (p = 0.45, r = 0.55) or immunoblotting and IHC (p = 0.2, r = 0.72), likely due to small sample size. MRP1 protein was not observed. 4. Localization of BCRP and P-gp proteins was to Wharton's jelly with no specific staining in arterial or venous endothelia. 5. Understanding ABC transporter expression in the umbilical cord may be useful for determining fetal exposures to xenobiotics if functional properties can be defined.

Indexed as

ATP-Binding Cassette, Sub-Family C ProteinsATP Binding Cassette Transporter, Subfamily B, Member 1ATP Binding Cassette Transporter, Subfamily G, Member 2Cohort StudiesDemographyFemaleGene Expression RegulationHumansImmunohistochemistryNeoplasm ProteinsPregnancyUmbilical CordABCG2 protein, humanATP-Binding Cassette, Sub-Family C ProteinsATP Binding Cassette Transporter, Subfamily B, Member 1ATP Binding Cassette Transporter, Subfamily G, Member 2multidrug resistance-associated protein 1Neoplasm ProteinsDevelopmental toxicologyfetal exposurepregnancytransporters

Identifiers

PMID26407213
PMCPMC5951720
OpenAlexW1770789003

What OpenQuestion holds

Textmetadata
LicenceTDM
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.