Evidence map›Paper›PMID 20441926›Full record

ArticleTalanta2010

The synthesis and characterization of cellular membrane affinity chromatography columns for the study of human multidrug resistant proteins MRP1, MRP2 and human breast cancer resistant protein BCRP using membranes obtained from Spodoptera frugiperda (Sf9) insect cells.

Prateek A Bhatia, Ruin Moaddel, Irving W Wainer

Abstract read
In one paragraph

Article in Talanta, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

7 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Recent developments in protein-ligand affinity mass spectrometry.Analytical and bioanalytical chemistry · 2011
    Review
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

3 authors at 1 institution in 1 country.

Prateek A BhatiaNational Institute on Aging, National Institutes of Health, Biomedical Research Center, Baltimore, MD 21224-6825, USA.
Ruin Moaddel
Irving W Wainer
National Institutes of Health · US

Funding

Immobilized Receptors In Drug DiscoveryZIAAG000295 · NIA · NATIONAL INSTITUTE ON AGING · PI EGAN, JOSEPHINE · 2009 to 2025
$11.4M
Immobilized Drug TransportersZIAAG000296 · NIA · NATIONAL INSTITUTE ON AGING · PI WAINER, IRVING WILLIAM · 2009 to 2013
$2.1M
Intramural NIH HHS ZIA AG000296
6 · The paper itself

Abstract

CMAC (cellular membrane affinity chromatography columns) have been developed for the study of the human multidrug transporters MRP1, MRP2 and the breast cancer resistance protein (BCRP). The columns were constructed using the immobilized artificial membrane (IAM) stationary phase and cellular membrane fragments obtained from Spodoptera frugiperda (Sf9) cells that had been stably transfected with human Mrp1, Mrp2 or Bcrp cDNA, using a baculovirus expression system. The resulting CMAC(Sf9(MRP1)), CMAC(Sf9(MRP2)) and CMAC(Sf9(BCRP)) columns and a control column produced using membrane fragments from non-transfected Sf9 cells, CMAC(Sf9), were characterized using frontal affinity chromatography using [(3)H]-etoposide as the marker ligand and etoposide, benzbromarone and MK571 as the displacers on the CMAC(Sf9(MRP1)) column, etoposide and furosemide on the CMAC(Sf9(MRP2)) column and etoposide and fumitremorgin C on the CMAC(Sf9(BCPR)) column. The binding affinities (K(i) values) obtained from the chromatographic studies were consistent with the data obtained using non-chromatographic techniques and the results indicate that the immobilized MRP1, MRP2 and BCRP transporters retained their ability to selectively bind known ligands. (S)-verapamil displaced [(3)H]-etoposide on the CMAC(Sf9(MRP1)) column to a greater extent than (R)-verapamil and the relative IC(50) values of the enantiomers were calculated using the changes in the retention times of the marker. The observed enantioselectivity and calculated IC(50) values were consistent with previously reported data. The results indicated that the CMAC(Sf9(MRP1)), CMAC(Sf9(MRP2)) and CMAC(Sf9(BCRP)) columns can be used for the study of binding to the MRP1, MRP2 and BCRP transporters and that membranes from the Sf9 cell line can be used to prepare CMAC columns. This is the first example of the use of membranes from a non-mammalian cell line in an affinity chromatographic system.

Indexed as

AnimalsATP-Binding Cassette, Sub-Family C ProteinsATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily G, Member 2Cell LineCell MembraneChromatographyEtoposideHumansInhibitory Concentration 50InsectaKineticsLigandsMultidrug Resistance-Associated Protein 2Neoplasm ProteinsStereoisomerismABCC2 protein, humanABCG2 protein, humanATP-Binding Cassette, Sub-Family C ProteinsATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily G, Member 2EtoposideLigandsmultidrug resistance-associated protein 1Multidrug Resistance-Associated Protein 2Neoplasm ProteinsVerapamil

Identifiers

PMID20441926
PMCPMC2865475
OpenAlexW1980370268

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.