Evidence map›Paper›PMID 21299497›Full record

ArticleThe Biochemical journal2011

Functional regulation of cystic fibrosis transmembrane conductance regulator-containing macromolecular complexes: a small-molecule inhibitor approach.

Weiqiang Zhang, Himabindu Penmatsa, Aixia Ren, Chandanamali Punchihewa, Andrew Lemoff, Bing Yan, Naoaki Fujii, Anjaparavanda P Naren

Abstract read
In one paragraph

Article in The Biochemical journal, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.0field-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

16 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. Review
  3. Emerging Themes in PDZ Domain Signaling: Structure, Function, and Inhibition.International review of cell and molecular biology · 2019
    Review
  4. Review
  5. Review
  6. CFTR-NHERF2-LPA₂ Complex in the Airway and Gut Epithelia.International journal of molecular sciences · 2017
    Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
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  16. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Weiqiang ZhangDepartment of Physiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
Himabindu Penmatsa
Aixia Ren
Chandanamali Punchihewa
Andrew Lemoff
Bing Yan
Naoaki Fujii
Anjaparavanda P Naren
St. Jude Children's Research Hospital · USUniversity of Tennessee Health Science Center · US

Funding

Inhibition of an apical cAMP transporter (MRP4) in the gut induces diarrheaR01DK080834 · NIDDK · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI Anjaparavanda P Naren · 2009 to 2026
$6.8M
LPA2 receptor-containing complexes in regulating secretory diarrheaR01DK093045 · NIDDK · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI NAREN, ANJAPARAVANDA P · 2011 to 2019
$3.0M
NIDDK NIH HHS DK080834NIDDK NIH HHS R01 DK080834NIDDK NIH HHS R01 DK093045
6 · The paper itself

Abstract

CFTR (cystic fibrosis transmembrane conductance regulator) has been shown to form multiple protein macromolecular complexes with its interacting partners at discrete subcellular microdomains to modulate trafficking, transport and signalling in cells. Targeting protein-protein interactions within these macromolecular complexes would affect the expression or function of the CFTR channel. We specifically targeted the PDZ domain-based LPA2 (type 2 lysophosphatidic acid receptor)-NHERF2 (Na+/H+ exchanger regulatory factor-2) interaction within the CFTR-NHERF2-LPA2-containing macromolecular complexes in airway epithelia and tested its regulatory role on CFTR channel function. We identified a cell-permeable small-molecule compound that preferentially inhibits the LPA2-NHERF2 interaction. We show that this compound can disrupt the LPA2-NHERF2 interaction in cells and thus compromises the integrity of macromolecular complexes. Functionally, it elevates cAMP levels in proximity to CFTR and upregulates its channel activity. The results of the present study demonstrate that CFTR Cl- channel function can be finely tuned by modulating PDZ domain-based protein-protein interactions within the CFTR-containing macromolecular complexes. The present study might help to identify novel therapeutic targets to treat diseases associated with dysfunctional CFTR Cl- channels.

Indexed as

AnimalsCells, CulturedCystic Fibrosis Transmembrane Conductance RegulatorDrug Delivery SystemsDrug DiscoveryDrug Evaluation, PreclinicalHigh-Throughput Screening AssaysHumansIndolesMacromolecular SubstancesModels, BiologicalPhenylpropionatesPhosphoproteinsProtein BindingReceptors, Lysophosphatidic AcidSmall Molecule LibrariesCFTR protein, humanCO 068Cystic Fibrosis Transmembrane Conductance RegulatorIndolesMacromolecular SubstancesPhenylpropionatesPhosphoproteinsReceptors, Lysophosphatidic AcidSmall Molecule Librariessodium-hydrogen exchanger regulatory factorSodium-Hydrogen Exchangers

Identifiers

PMID21299497
PMCPMC3177239
OpenAlexW2012448934

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.