Evidence map›Paper›PMID 27168400›Full record

ArticlePLoS biology2016

Ribosomal Stalk Protein Silencing Partially Corrects the ΔF508-CFTR Functional Expression Defect.

Guido Veit, Kathryn Oliver, Pirjo M Apaja, Doranda Perdomo, Aurélien Bidaud-Meynard, Sheng-Ting Lin, Jingyu Guo, Mert Icyuz, Eric J Sorscher, John L Hartman and 1 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PLoS biology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
4.9field-weighted citation impact, top 5% 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

45 citing papers in PubMed, 60 citations in OpenAlex.

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  8. Ribosomal frameshifting selectively modulates the assembly, function, and pharmacological rescue of a misfolded CFTR variant.Proceedings of the National Academy of Sciences of the United States of America · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 2 countries.

Guido VeitDepartment of Physiology, McGill University, Montréal, Quebec, Canada.
Kathryn OliverDepartment of Genetics, University of Alabama at Birmingham, Birmingham, Alabama, United States of America.
Pirjo M ApajaDepartment of Physiology, McGill University, Montréal, Quebec, Canada.
Doranda PerdomoDepartment of Physiology, McGill University, Montréal, Quebec, Canada.
Aurélien Bidaud-MeynardDepartment of Physiology, McGill University, Montréal, Quebec, Canada.
Sheng-Ting LinDepartment of Physiology, McGill University, Montréal, Quebec, Canada.ORCID 0000-0002-8109-3557
Jingyu GuoDepartment of Genetics, University of Alabama at Birmingham, Birmingham, Alabama, United States of America.
Mert IcyuzDepartment of Genetics, University of Alabama at Birmingham, Birmingham, Alabama, United States of America.
Eric J SorscherDepartment of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, United States of America.
John L HartmanDepartment of Genetics, University of Alabama at Birmingham, Birmingham, Alabama, United States of America.
Gergely L LukacsDepartment of Physiology, McGill University, Montréal, Quebec, Canada.
McGill University · CAUniversity of Alabama at Birmingham · USEmory University · US

Funding

UAB CF Research and Translation Core CenterP30DK072482 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI AMIT GAGGAR · 2007 to 2026
$23.0M
Correction of defective functional expression of CFTR in cystic fibrosisR01DK075302 · NIDDK · MCGILL UNIVERSITY · PI LUKACS, GERGELY L. · 2006 to 2020
$3.3M
Modulation of Ribosome Dynamics Rescues F508del CFTR Maturational ArrestF31HL131231 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI OLIVER, KATHRYN E · 2016 to 2016
$25k
NHLBI NIH HHS F31 HL131231NIDDK NIH HHS P30 DK072482NIDDK NIH HHS R01 DK075302
6 · The paper itself

Abstract

The most common cystic fibrosis (CF) causing mutation, deletion of phenylalanine 508 (ΔF508 or Phe508del), results in functional expression defect of the CF transmembrane conductance regulator (CFTR) at the apical plasma membrane (PM) of secretory epithelia, which is attributed to the degradation of the misfolded channel at the endoplasmic reticulum (ER). Deletion of phenylalanine 670 (ΔF670) in the yeast oligomycin resistance 1 gene (YOR1, an ABC transporter) of Saccharomyces cerevisiae phenocopies the ΔF508-CFTR folding and trafficking defects. Genome-wide phenotypic (phenomic) analysis of the Yor1-ΔF670 biogenesis identified several modifier genes of mRNA processing and translation, which conferred oligomycin resistance to yeast. Silencing of orthologues of these candidate genes enhanced the ΔF508-CFTR functional expression at the apical PM in human CF bronchial epithelia. Although knockdown of RPL12, a component of the ribosomal stalk, attenuated the translational elongation rate, it increased the folding efficiency as well as the conformational stability of the ΔF508-CFTR, manifesting in 3-fold augmented PM density and function of the mutant. Combination of RPL12 knockdown with the corrector drug, VX-809 (lumacaftor) restored the mutant function to ~50% of the wild-type channel in primary CFTRΔF508/ΔF508 human bronchial epithelia. These results and the observation that silencing of other ribosomal stalk proteins partially rescue the loss-of-function phenotype of ΔF508-CFTR suggest that the ribosomal stalk modulates the folding efficiency of the mutant and is a potential therapeutic target for correction of the ΔF508-CFTR folding defect.

Indexed as

AminopyridinesATP-Binding Cassette TransportersBenzodioxolesBronchiCells, CulturedCystic FibrosisCystic Fibrosis Transmembrane Conductance RegulatorEpithelial CellsGene Knockdown TechniquesGene SilencingHigh-Throughput Screening AssaysHumansPeptide Elongation Factor 2Protein FoldingProtein StabilityRibosomal ProteinsAminopyridinesATP-Binding Cassette TransportersBenzodioxolesCFTR protein, humanCystic Fibrosis Transmembrane Conductance RegulatorlumacaftorPeptide Elongation Factor 2Ribosomal ProteinsRNA, Small InterferingRPL12 protein, humanSaccharomyces cerevisiae ProteinsYOR1 protein, S cerevisiae

Identifiers

PMID27168400
PMCPMC4864299
OpenAlexW2348038189

What OpenQuestion holds

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Registered trials

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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.