Evidence map›Paper›PMID 28649446›Full record

ArticleNPJ genomic medicine2017

Phenotypic profiling of CFTR modulators in patient-derived respiratory epithelia.

Saumel Ahmadi, Zoltan Bozoky, Michelle Di Paola, Sunny Xia, Canhui Li, Amy P Wong, Leigh Wellhauser, Steven V Molinski, Wan Ip, Hong Ouyang and 9 more

Abstract read
In one paragraph

Article in NPJ genomic medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing 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

43 citing papers in PubMed.

  1. Precision A3G base editors for disease modeling and correction.Molecular therapy : the journal of the American Society of Gene Therapy · 2026
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  15. Assays of CFTR Function In Vitro, Ex Vivo and In Vivo.International journal of molecular sciences · 2022
    Review
  16. Article
  17. Article
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  19. Article
  20. 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

19 authors.

Saumel AhmadiDepartment of Physiology, University of Toronto, Toronto, ON, Canada.
Zoltan BozokyProgramme in Molecular Medicine, Research Institute, Hospital for Sick Children, Toronto, ON, Canada.
Michelle Di PaolaProgramme in Molecular Medicine, Research Institute, Hospital for Sick Children, Toronto, ON, Canada.
Sunny XiaDepartment of Physiology, University of Toronto, Toronto, ON, Canada.
Canhui LiProgramme in Molecular Medicine, Research Institute, Hospital for Sick Children, Toronto, ON, Canada.
Amy P WongProgramme in Developmental and Stem Cell Biology, Research Institute, Hospital for Sick Children, Toronto, ON, Canada.
Leigh WellhauserProgramme in Molecular Medicine, Research Institute, Hospital for Sick Children, Toronto, ON, Canada.
Steven V MolinskiProgramme in Molecular Medicine, Research Institute, Hospital for Sick Children, Toronto, ON, Canada.
Wan IpProgramme in Translational Medicine, Research Institute, Hospital for Sick Children, Toronto, ON, Canada.
Hong OuyangProgramme in Translational Medicine, Research Institute, Hospital for Sick Children, Toronto, ON, Canada.
Julie AvolioProgramme in Translational Medicine, Research Institute, Hospital for Sick Children, Toronto, ON, Canada.
Julie D Forman-KayProgramme in Molecular Medicine, Research Institute, Hospital for Sick Children, Toronto, ON, Canada.
Felix RatjenDepartment of Paediatrics, University of Toronto, Toronto, ON, Canada.
Jeremy A HirotaFirestone Institute for Respiratory Health, Division of Respirology, McMaster University, Hamilton, ON, Canada.
Johanna RommensDepartment of Molecular Genetics, University of Toronto, Toronto, ON, Canada.
Janet RossantDepartment of Molecular Genetics, University of Toronto, Toronto, ON, Canada.
Tanja GonskaDepartment of Paediatrics, University of Toronto, Toronto, ON, Canada.
Theo J MoraesDepartment of Paediatrics, University of Toronto, Toronto, ON, Canada.
Christine E BearDepartment of Physiology, University of Toronto, Toronto, ON, Canada.

Funding

CIHR 102171-1CIHR 125855-1
6 · The paper itself

Abstract

Pulmonary disease is the major cause of morbidity and mortality in patients with cystic fibrosis, a disease caused by mutations in the Cystic Fibrosis Transmembrane conductance Regulator (CFTR) gene. Heterogeneity in CFTR genotype-phenotype relationships in affected individuals plus the escalation of drug discovery targeting specific mutations highlights the need to develop robust in vitro platforms with which to stratify therapeutic options using relevant tissue. Toward this goal, we adapted a fluorescence plate reader assay of apical CFTR-mediated chloride conductance to enable profiling of a panel of modulators on primary nasal epithelial cultures derived from patients bearing different CFTR mutations. This platform faithfully recapitulated patient-specific responses previously observed in the "gold-standard" but relatively low-throughput Ussing chamber. Moreover, using this approach, we identified a novel strategy with which to augment the response to an approved drug in specific patients. In proof of concept studies, we also validated the use of this platform in measuring drug responses in lung cultures differentiated from cystic fibrosis iPS cells. Taken together, we show that this medium throughput assay of CFTR activity has the potential to stratify cystic fibrosis patient-specific responses to approved drugs and investigational compounds in vitro in primary and iPS cell-derived airway cultures.

Identifiers

PMID28649446
PMCPMC5481189

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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.