Evidence map›Paper›PMID 19020811›Full record

ArticleCellular & molecular biology letters2009

Perturbation of the lipid phase of a membrane is not involved in the modulation of MRP1 transport activity by flavonoids.

Olga Wesołowska, Andrzej B Hendrich, Barbara Łaniapietrzak, Jerzy Wiśniewski, Joseph Molnar, Imre Ocsovszki, Krystyna Michalak

Open access · hybridAbstract read
In one paragraph

Article in Cellular & molecular biology letters, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed, 24 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

7 authors at 2 institutions in 2 countries.

Olga WesołowskaDepartment of Biophysics, Wrocław Medical University, ul. Chałubińskiego 10, 50-368 Wrocław, Poland. olawes@biofiz.am.wroc.pl
Andrzej B Hendrich
Barbara Łaniapietrzak
Jerzy Wiśniewski
Joseph Molnar
Imre Ocsovszki
Krystyna Michalak
Wroclaw Medical University · PLUniversity of Szeged · HU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The expression of transmembrane transporter multidrug resistance-associated protein 1 (MRP1) confers the multidrug-resistant phenotype (MDR) on cancer cells. Since the activity of the other MDR transporter, P-glycoprotein, is sensitive to membrane perturbation, we aimed to check whether the changes in lipid bilayer properties induced by flavones (apigenin, acacetin) and flavonols (morin, myricetin) were related to their MRP1 inhibitory activity. All the flavonoids inhibited the efflux of MRP1 fluorescent substrate from human erythrocytes and breast cancer cells. Morin was also found to stimulate the ATPase activity of erythrocyte ghosts. All flavonoids intercalated into phosphatidylcholine bilayers as judged by differential scanning calorimetry and fluorescence spectroscopy with the use of two carbocyanine dyes. The model of an intramembrane localization for flavones and flavonols was proposed. No clear relationship was found between the membrane-perturbing activity of flavonoids and their potency to inhibit MRP1. We concluded that mechanisms other than perturbation of the lipid phase of membranes were responsible for inhibition of MRP1 by the flavonoids.

Indexed as

Drug Resistance, NeoplasmAdenosine TriphosphatasesAnimalsATP-Binding Cassette, Sub-Family C ProteinsBreast NeoplasmsCell Line, TumorCell MembraneErythrocytesFlavonoidsHumansLymphomaMiceAdenosine TriphosphatasesATP-Binding Cassette, Sub-Family C ProteinsFlavonoidsmultidrug resistance-associated protein 1

Identifiers

PMID19020811
PMCPMC6275984
OpenAlexW2032677296

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.