Evidence map›Paper›PMID 28438500›Full record

ArticleJournal of cystic fibrosis : official journal of the European Cystic Fibrosis Society2017

AP2 α modulates cystic fibrosis transmembrane conductance regulator function in the human intestine.

Vandana Kumari, Shruti Desai, Nadia A Ameen

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.8field-weighted citation impact, top 25% 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

3 citing papers in PubMed, 5 citations in OpenAlex.

  1. Review
  2. Review
  3. CK19 stabilizes CFTR at the cell surface by limiting its endocytic pathway degradation.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
    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

3 authors at 1 institution in 1 country.

Vandana KumariDepartment of Pediatrics/Gastroenterology and Hepatology, Yale School of Medicine, New Haven, CT, United States.
Shruti DesaiDepartment of Pediatrics/Gastroenterology and Hepatology, Yale School of Medicine, New Haven, CT, United States.
Nadia A AmeenDepartment of Pediatrics/Gastroenterology and Hepatology, Yale School of Medicine, New Haven, CT, United States; Department of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, CT, United States. Electronic address: Nadia.Ameen@yale.edu.
Yale University · US

Funding

Yale Liver CenterP30DK034989 · NIDDK · YALE UNIVERSITY · PI YASUKO IWAKIRI · 1986 to 2026
$31.1M
Glucocorticoid and SGK1 regulation of CFTR in the intestine: role in diarrheaR01DK077065 · NIDDK · YALE UNIVERSITY · PI AMEEN, NADIA A. · 2008 to 2024
$5.8M
Glucocorticoid and SGK1 Regulation of CFTR in the Intestine: Role in DiarrheaR56DK077065 · NIDDK · YALE UNIVERSITY · PI AMEEN, NADIA A. · 2020 to 2020
$418k
NIDDK NIH HHS P30 DK034989NIDDK NIH HHS R01 DK077065NIDDK NIH HHS R56 DK077065
6 · The paper itself

Abstract

backgroundAP2 is a clathrin-based endocytic adaptor complex comprising α, β2, μ2 and σ2 subunits. μ2 regulates CFTR endocytosis. The α subunit interacts with CFTR in the intestine but its physiologic significance is unclear.

methodsCFTR short circuit current was measured in intestinal T84 cells following shRNA knock down of AP2α (AP2αKD). Clathrin-coated structures (CCS) were immunolabeled and quantified in AP2αKD intestinal Caco2BBe (C2BBe) cells. GST tagged human AP2α appendage domain was cloned and its interaction with CFTR determined by GST pull down assay.

resultAP2αKD in T84 cells resulted in higher CFTR current (57%) compared to control, consistent with increased functional CFTR and delayed endocytosis. Depletion of AP2α reduced CCS in C2BBe cells. Pull down assays revealed an interaction between human AP2α appendage domain and CFTR.

conclusionAP2 α interacts with and modulates CFTR function in the intestine by participating in clathrin assembly and recruitment of CFTR to CCS.

Indexed as

Adaptor Protein Complex 2Adaptor Protein Complex SubunitsCystic FibrosisCystic Fibrosis Transmembrane Conductance RegulatorEndocytosisHEK293 CellsHumansIntestinal MucosaIon TransportAdaptor Protein Complex 2Adaptor Protein Complex SubunitsCystic Fibrosis Transmembrane Conductance RegulatorAP2αCFTRClathrin

Identifiers

PMID28438500
PMCPMC5502754
OpenAlexW2606545287

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.