Evidence map›Paper›PMID 24473481›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2014

Hypoxia/reoxygenation stress signals an increase in organic anion transporting polypeptide 1a4 (Oatp1a4) at the blood-brain barrier: relevance to CNS drug delivery.

Brandon J Thompson, Lucy Sanchez-Covarrubias, Lauren M Slosky, Yifeng Zhang, Mei-li Laracuente, Patrick T Ronaldson

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, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

43 citing papers in PubMed, 71 citations in OpenAlex.

  1. Review
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  9. Regulation of Blood-Brain Barrier Transporters by Transforming Growth Factor-Drug metabolism and disposition: the biological fate of chemicals · 2022
    Article
  10. Review
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  12. Article
  13. Current Chemical, Biological, and Physiological Views in the Development of Successful Brain-Targeted Pharmaceutics.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2022
    Review
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  19. Regulation of blood-brain barrier integrity by microglia in health and disease: A therapeutic opportunity.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Review
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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

6 authors at 1 institution in 1 country.

Brandon J ThompsonDepartment of Physiology, University of Arizona College of Medicine, Tucson, Arizona, USA.
Lucy Sanchez-CovarrubiasDepartment of Pharmacology, University of Arizona College of Medicine, Tucson, Arizona, USA.
Lauren M SloskyDepartment of Pharmacology, University of Arizona College of Medicine, Tucson, Arizona, USA.
Yifeng ZhangDepartment of Pharmacology, University of Arizona College of Medicine, Tucson, Arizona, USA.
Mei-li LaracuenteDepartment of Pharmacology, University of Arizona College of Medicine, Tucson, Arizona, USA.
Patrick T Ronaldson1] Department of Physiology, University of Arizona College of Medicine, Tucson, Arizona, USA [2] Department of Pharmacology, University of Arizona College of Medicine, Tucson, Arizona, USA.
University of Arizona · US

Funding

Targeting Blood-Brain Barrier Transporters to Treat Ischemic StrokeR01NS084941 · NINDS · UNIVERSITY OF ARIZONA · PI RONALDSON, PATRICK THOMAS · 2014 to 2024
$4.4M
NINDS NIH HHS R01 NS084941
6 · The paper itself

Abstract

Cerebral hypoxia and subsequent reoxygenation stress (H/R) is a component of several diseases. One approach that may enable neural tissue rescue after H/R is central nervous system (CNS) delivery of drugs with brain protective effects such as 3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitors (i.e., statins). Our present in vivo data show that atorvastatin, a commonly prescribed statin, attenuates poly (ADP-ribose) polymerase (PARP) cleavage in the brain after H/R, suggesting neuroprotective efficacy. However, atorvastatin use as a CNS therapeutic is limited by poor blood-brain barrier (BBB) penetration. Therefore, we examined regulation and functional expression of the known statin transporter organic anion transporting polypeptide 1a4 (Oatp1a4) at the BBB under H/R conditions. In rat brain microvessels, H/R (6% O2, 60 minutes followed by 21% O2, 10 minutes) increased Oatp1a4 expression. Brain uptake of taurocholate (i.e., Oap1a4 probe substrate) and atorvastatin were reduced by Oatp inhibitors (i.e., estrone-3-sulfate and fexofenadine), suggesting involvement of Oatp1a4 in brain drug delivery. Pharmacological inhibition of transforming growth factor-β (TGF-β)/activin receptor-like kinase 5 (ALK5) signaling with the selective inhibitor SB431542 increased Oatp1a4 functional expression, suggesting a role for TGF-β/ALK5 signaling in Oatp1a4 regulation. Taken together, our novel data show that targeting an endogenous BBB drug uptake transporter (i.e., Oatp1a4) may be a viable approach for optimizing CNS drug delivery for treatment of diseases with an H/R component.

Indexed as

Drug Delivery SystemsAnimalsAtorvastatinBiological TransportBlood-Brain BarrierBlood Gas AnalysisBlotting, WesternCarbon DioxideElectrolytesFemaleHeptanoic AcidsHypoxia, BrainMicrovesselsNeuroprotective AgentsOrganic Anion TransportersOxygenAtorvastatinCarbon DioxideElectrolytesHeptanoic AcidsNeuroprotective AgentsOrganic Anion TransportersOxygenPyrrolesSlco1a4 protein, rat

Identifiers

PMID24473481
PMCPMC3982098
OpenAlexW2044401686

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.