Evidence map›Paper›PMID 19233900›Full record

ArticleMolecular pharmacology2009

Mrp1 localization and function in cardiac mitochondria after doxorubicin.

Paiboon Jungsuwadee, Ramaneeya Nithipongvanitch, Yumin Chen, Terry D Oberley, D Allan Butterfield, Daret K St Clair, Mary Vore

Open access · bronzeAbstract read
In one paragraph

Article in Molecular pharmacology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
1.5field-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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Pooled it
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  6. Genetics of Anthracycline-Associated Cardiotoxicity.Frontiers in cardiovascular medicine · 2022
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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

7 authors at 2 institutions in 1 country.

Paiboon JungsuwadeeGraduate Center for Toxicology, University of Kentucky, Lexington, KY 40536-0305, USA.
Ramaneeya Nithipongvanitch
Yumin Chen
Terry D Oberley
D Allan Butterfield
Daret K St Clair
Mary Vore
The Graduate Center, CUNY · USUniversity of Kentucky · US

Funding

Mechanisms of Redox Mediated CardioprotectionR01CA094853 · NCI · UNIVERSITY OF KENTUCKY · PI ST CLAIR, DARET K · 2002 to 2006
$2.0M
The role of MRP1 in Protection of Cardiac InjuryR01CA139844 · NCI · UNIVERSITY OF KENTUCKY · PI VORE, MARY · 2008 to 2012
$1.3M
NCI NIH HHS CA139844NCI NIH HHS CA94853NIGMS NIH HHS GM55343
6 · The paper itself

Abstract

Multidrug resistance-associated protein 1 (Mrp1; Abcc1) is expressed in sarcolemma of murine heart, where it probably protects the cardiomyocyte by mediating efflux of endo- and xenobiotics. We used doxorubicin (DOX), a chemotherapeutic drug known to induce oxidative stress and thereby cardiac injury, as a model cardiotoxic compound and observed changes in the Mrp1 expression pattern in cardiac tissue of DOX-versus saline-treated mice. Confocal immunofluorescent and immunogold electron microscopy, together with subcellular fractionation followed by immunoblot analyses and transport measurements, localized functional Mrp1 to mitochondria after DOX. Expressions of Mrp1 in heart homogenate, sarcolemma, and submitochondrial particles (SMP) were increased 1.6-, 2-, and 3-fold, respectively, at 24 h after DOX. Mitochondrial Mrp1 expression was markedly increased 72 h after DOX, whereas transport of Mrp1 substrates in SMP was maximal at 24 h. ATP-dependent transport in SMP occurred into an osmotically sensitive space and was inhibited by the anti-MRP1 antibody QCRL3. Adduction of a 190-kDa protein with the reactive lipid peroxidation product 4-hydroxy-2-nonenal (HNE) was detected in SMP and was maximal at 72 h after DOX; immunoprecipitation confirmed Mrp1-HNE adduction. In vitro, HNE (10 muM) inhibited mitochondrial respiration and transport activity in SMP, suggesting that Mrp1 is adversely affected by oxidative stress. These data demonstrate that after DOX, functional Mrp1 is detected in mitochondria in addition to that in sarcolemma; however, adduction with HNE inhibits Mrp1 activity. Mrp1 may serve to protect the heart by mediating the efflux of toxic products of oxidative stress from mitochondria and cardiomyocytes.

Indexed as

AldehydesAnimalsAntibiotics, AntineoplasticATP-Binding Cassette, Sub-Family C ProteinsDoxorubicinMiceMice, Inbred C57BLMitochondria, HeartSarcolemmaSodium-Potassium-Exchanging ATPaseSubmitochondrial Particles4-hydroxy-2-nonenalAldehydesAntibiotics, AntineoplasticATP-Binding Cassette, Sub-Family C ProteinsDoxorubicinmultidrug resistance-associated protein 1Sodium-Potassium-Exchanging ATPase

Identifiers

PMID19233900
PMCPMC2672805
OpenAlexW2168082531

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.