ArticleThe Journal of cell biology2004
Misfolding diverts CFTR from recycling to degradation: quality control at early endosomes.
Article in The Journal of cell biology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 173 papers, 2 of them syntheses that pooled it.
What it found
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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.
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.
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Who cites it
173 citing papers in PubMed, 2 syntheses or guidelines pooled it, 324 citations in OpenAlex.
- Protein sorting and proteostasis mechanisms in CFTR-related exocrine pancreas dysfunction: A systematic narrative review.Channels (Austin, Tex.) · 2026Pooled it
- From Ivacaftor to Triple Combination: A Systematic Review of Efficacy and Safety of CFTR Modulators in People with Cystic Fibrosis.International journal of molecular sciences · 2020Pooled it
- Regulation of CFTR stability at the plasma membrane-Mechanisms and therapeutic opportunities in cystic fibrosis.FEBS letters · 2026Review
- RFFL-mediated protein quality control limits functional rescue of TRID-CFTR modulator combination therapy for cystic fibrosis nonsense mutations.Cellular and molecular life sciences : CMLS · 2026Article
- Antisense oligonucleotide targeting the E3 ligase RFFL potentiates CFTR modulator efficacy in CF primary bronchial epithelial cells.Molecular therapy. Nucleic acids · 2025Article
- p.Phe508del-CFTR Trafficking: A Protein Quality Control Perspective Through UPR, UPS, and Autophagy.International journal of molecular sciences · 2025Review
- Unraveling the Mechanism of Action, Binding Sites, and Therapeutic Advances of CFTR Modulators: A Narrative Review.Current issues in molecular biology · 2025Review
- Inflammatory response in CF airway epithelial cells: a comparative study of modulators and wild-type CFTR rescue.Frontiers in pharmacology · 2025Article
- Inflammation in the COVID-19 airway is due to inhibition of CFTR signaling by the SARS-CoV-2 spike protein.Scientific reports · 2024Article
- Targeting ubiquitination machinery in cystic fibrosis: Where do we stand?Cellular and molecular life sciences : CMLS · 2024Review
- Prime editing functionally corrects cystic fibrosis-causing CFTR mutations in human organoids and airway epithelial cells.Cell reports. Medicine · 2024Article
- Functional Consequences of CFTR Interactions in Cystic Fibrosis.International journal of molecular sciences · 2024Review
- The expression system influences stability, maturation efficiency, and oligomeric properties of the potassium-chloride co-transporter KCC2.Neurochemistry international · 2024Article
- Article
- Readthrough-induced misincorporated amino acid ratios guide mutant-specific therapeutic approaches for two CFTR nonsense mutations.Frontiers in pharmacology · 2024Article
- Article
- Transmembrane Helices 7 and 8 Confer Aggregation Sensitivity to the Cystic Fibrosis Transmembrane Conductance Regulator.International journal of molecular sciences · 2023Article
- YES1 Kinase Mediates the Membrane Removal of Rescued F508del-CFTR in Airway Cells by Promoting MAPK Pathway Activation via SHC1.Biomolecules · 2023Article
- Cystic fibrosis transmembrane conductance regulator in COPD: a role in respiratory epithelium and beyond.The European respiratory journal · 2023Review
- Extracellular Vesicles' Role in the Pathophysiology and as Biomarkers in Cystic Fibrosis and COPD.International journal of molecular sciences · 2022Review
113 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
To investigate the degradation mechanism of misfolded membrane proteins from the cell surface, we used mutant cystic fibrosis transmembrane conductance regulators (CFTRs) exhibiting conformational defects in post-Golgi compartments. Here, we show that the folding state of CFTR determines the post-endocytic trafficking of the channel. Although native CFTR recycled from early endosomes back to the cell surface, misfolding prevented recycling and facilitated lysosomal targeting by promoting the ubiquitination of the channel. Rescuing the folding defect or down-regulating the E1 ubiquitin (Ub)-activating enzyme stabilized the mutant CFTR without interfering with its internalization. These observations with the preferential association of mutant CFTRs with Hrs, STAM-2, TSG101, hVps25, and hVps32, components of the Ub-dependent endosomal sorting machinery, establish a functional link between Ub modification and lysosomal degradation of misfolded CFTR from the cell surface. Our data provide evidence for a novel cellular mechanism of CF pathogenesis and suggest a paradigm for the quality control of plasma membrane proteins involving the coordinated function of ubiquitination and the Ub-dependent endosomal sorting machinery.
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Registered trials
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.