Evidence map›Paper›PMID 27466374›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2016

P-glycoprotein traffics from the nucleus to the plasma membrane in rat brain endothelium during inflammatory pain.

Margaret E Tome, Joseph M Herndon, Charles P Schaefer, Leigh M Jacobs, Yifeng Zhang, Chelsea K Jarvis, Thomas P Davis

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2016. 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
1.9field-weighted citation impact, top 16% 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, 22 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Blood-Brain Barrier Mechanisms in Stroke and Trauma.Handbook of experimental pharmacology · 2022
    Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Tetrabromobisphenol A (TBBPA) Alters ABC Transport at the Blood-Brain Barrier.Toxicological sciences : an official journal of the Society of Toxicology · 2019
    Article
  11. Acute pain alters P-glycoprotein-containing protein complexes in rat cerebral microvessels: Implications for P-glycoprotein trafficking.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2018
    Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. 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

7 authors at 1 institution in 1 country.

Margaret E TomeDepartment of Pharmacology, University of Arizona, Tucson, USA mtome@email.arizona.edu.
Joseph M HerndonDepartment of Pharmacology, University of Arizona, Tucson, USA.
Charles P SchaeferDepartment of Pharmacology, University of Arizona, Tucson, USA.
Leigh M JacobsDepartment of Pharmacology, University of Arizona, Tucson, USA.
Yifeng ZhangDepartment of Pharmacology, University of Arizona, Tucson, USA.
Chelsea K JarvisDepartment of Pharmacology, University of Arizona, Tucson, USA.
Thomas P DavisDepartment of Pharmacology, University of Arizona, Tucson, USA.
University of Arizona · US

Funding

VITAMIN AP30CA023074 · NCI · UNIVERSITY OF ARIZONA · PI Teri L Bankhead · 1985 to 2026
$110.2M
BLOOD BRAIN BARRIER CHANGES INDUCED BY PAINR01NS042652 · NINDS · UNIVERSITY OF ARIZONA · PI DAVIS, THOMAS PAUL · 2002 to 2017
$7.6M
BLOOD TO CNS UPTAKE OF OPIOID PEPTIDE DRUGSR01DA011271 · NIDA · UNIVERSITY OF ARIZONA · PI DAVIS, THOMAS PAUL · 1997 to 2014
$4.4M
NCI NIH HHS P30 CA023074NIDA NIH HHS R01 DA011271NINDS NIH HHS R01 NS042652
6 · The paper itself

Abstract

P-glycoprotein (PgP), a drug efflux pump in blood-brain barrier endothelial cells, is a major clinical obstacle for effective central nervous system drug delivery. Identifying PgP regulatory pathways that can be exploited clinically is critical for improving central nervous system drug delivery. We previously found that PgP activity increases in rat brain microvessels concomitant with decreased central nervous system drug delivery in response to acute peripheral inflammatory pain. In the current study, we tested the hypothesis that PgP traffics to the luminal plasma membrane of the microvessel endothelial cells from intracellular stores during peripheral inflammatory pain. Using immunofluorescence microscopy, we detected PgP in endothelial cell nuclei and in the luminal plasma membrane in control animals. Following peripheral inflammatory pain, luminal PgP staining increased while staining in the nucleus decreased. Biochemical analysis of nuclear PgP content confirmed our visual observations. Peripheral inflammatory pain also increased endothelial cell luminal staining of polymerase 1 and transcript release factor/cavin1 and serum deprivation response protein/cavin2, two caveolar scaffold proteins, without changing caveolin1 or protein kinase C delta binding protein/cavin3 location. Our data (a) indicate that PgP traffics from stores in the nucleus to the endothelial cell luminal membrane in response to peripheral inflammatory pain; (b) provide an explanation for our previous observation that peripheral inflammatory pain inhibits central nervous system drug uptake; and (c) suggest a novel regulatory mechanism for PgP activity in rat brain.

Indexed as

ATP Binding Cassette Transporter, Subfamily B, Member 1Blood-Brain BarrierCarrageenanCaveolin 1Cell MembraneCell NucleusEndothelium, VascularIntracellular Signaling Peptides and ProteinsMicroscopy, FluorescenceMicrovesselsNeurogenic InflammationProtein TransportSodium ChlorideATP Binding Cassette Transporter, Subfamily B, Member 1CarrageenanCaveolin 1Cavin3 protein, ratIntracellular Signaling Peptides and ProteinsSodium ChlorideCaveolin1P-glycoproteinpolymerase 1 and transcript release factor/cavin1protein kinase C delta binding protein/cavin3serum deprivation response protein/cavin2trafficking

Identifiers

PMID27466374
PMCPMC5094312
OpenAlexW2502810424

What OpenQuestion holds

Textmetadata
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.