Evidence map›Paper›PMID 28945785›Full record

ArticlePloS one2017

Signaling properties of the human chemokine receptors CXCR4 and CXCR7 by cellular electric impedance measurements.

Jordi Doijen, Tom Van Loy, Wouter De Haes, Bart Landuyt, Walter Luyten, Liliane Schoofs, Dominique Schols

Abstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. An Emerging Role for Calcium Signaling in Cancer-Associated Fibroblasts.International journal of molecular sciences · 2021
    Review
  8. Review
  9. Article
  10. Article
  11. 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.

Jordi DoijenLaboratory of Functional genomics & proteomics, Zoological Institute, KU Leuven, Belgium.ORCID http://orcid.org/0000-0002-1707-0174
Tom Van LoyLaboratory of Virology and Chemotherapy, Rega Institute for Medical Research, KU Leuven, Belgium.
Wouter De HaesLaboratory of Functional genomics & proteomics, Zoological Institute, KU Leuven, Belgium.
Bart LanduytLaboratory of Functional genomics & proteomics, Zoological Institute, KU Leuven, Belgium.
Walter LuytenLaboratory of Functional genomics & proteomics, Zoological Institute, KU Leuven, Belgium.
Liliane SchoofsLaboratory of Functional genomics & proteomics, Zoological Institute, KU Leuven, Belgium.
Dominique ScholsLaboratory of Virology and Chemotherapy, Rega Institute for Medical Research, KU Leuven, Belgium.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The chemokine receptor 4 (CXCR4) and 7 (CXCR7) are G-protein-coupled receptors involved in various diseases including human cancer. As such, they have become important targets for therapeutic intervention. Cell-based receptor assays, able to detect agents that modulate receptor activity, are of key importance for drug discovery. We evaluated the potential of cellular electric impedance for this purpose. Dose-dependent and specific stimulation of CXCR4 was detected upon addition of its unique chemokine ligand CXCL12. The response magnitude correlated with the CXCR4 expression level. Gαi coupling and signaling contributed extensively to the impedance response, whereas Gαq- and Gβγ-related events had only minor effects on the impedance profile. CXCR7 signaling could not be detected using impedance measurements. However, increasing levels of CXCR7 expression significantly reduced the CXCR4-mediated impedance readout, suggesting a regulatory role for CXCR7 on CXCR4-mediated signaling. Taken together, cellular electric impedance spectroscopy can represent a valuable alternative pharmacological cell-based assay for the identification of molecules targeting CXCR4, but not for CXCR7 in the absence of CXCR4.

Indexed as

Calcium SignalingCell Line, TumorChemokine CXCL12Electric ImpedanceGTP-Binding Protein alpha Subunits, Gi-GoHT29 CellsHumansLigandsPertussis ToxinReceptors, CXCRReceptors, CXCR4Recombinant ProteinsSignal TransductionACKR3 protein, humanChemokine CXCL12CXCL12 protein, humanCXCR4 protein, humanGTP-Binding Protein alpha Subunits, Gi-GoLigandsPertussis ToxinReceptors, CXCRReceptors, CXCR4Recombinant Proteins

Identifiers

PMID28945785
PMCPMC5612718

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.