Evidence map›Paper›PMID 27660821›Full record

ArticleJCI insight2016

Analysis of cystic fibrosis-associated P67L CFTR illustrates barriers to personalized therapeutics for orphan diseases.

Carleen M Sabusap, Wei Wang, Carmel M McNicholas, W Joon Chung, Lianwu Fu, Hui Wen, Marina Mazur, Kevin L Kirk, James F Collawn, Jeong S Hong and 1 more

Abstract read
In one paragraph

Article in JCI insight, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing 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

42 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Proteostasis landscapes of cystic fibrosis variants reveal drug response vulnerability.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. CFTR Modulators: From Mechanism to Targeted Therapeutics.Handbook of experimental pharmacology · 2024
    Article
  12. Review
  13. Article
  14. Patient-derived cell models for personalized medicine approaches in cystic fibrosis.Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society · 2023
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  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

11 authors.

Carleen M SabusapGregory Fleming James Cystic Fibrosis Research Center, University of Alabama, Birmingham, Alabama, USA.
Wei WangGregory Fleming James Cystic Fibrosis Research Center, University of Alabama, Birmingham, Alabama, USA.
Carmel M McNicholasGregory Fleming James Cystic Fibrosis Research Center, University of Alabama, Birmingham, Alabama, USA.
W Joon ChungGregory Fleming James Cystic Fibrosis Research Center, University of Alabama, Birmingham, Alabama, USA.
Lianwu FuGregory Fleming James Cystic Fibrosis Research Center, University of Alabama, Birmingham, Alabama, USA.
Hui WenGregory Fleming James Cystic Fibrosis Research Center, University of Alabama, Birmingham, Alabama, USA.
Marina MazurGregory Fleming James Cystic Fibrosis Research Center, University of Alabama, Birmingham, Alabama, USA.
Kevin L KirkGregory Fleming James Cystic Fibrosis Research Center, University of Alabama, Birmingham, Alabama, USA.
James F CollawnGregory Fleming James Cystic Fibrosis Research Center, University of Alabama, Birmingham, Alabama, USA.
Jeong S HongGregory Fleming James Cystic Fibrosis Research Center, University of Alabama, Birmingham, Alabama, USA.
Eric J SorscherGregory Fleming James Cystic Fibrosis Research Center, University of Alabama, Birmingham, Alabama, USA.; Emory University, Atlanta, Georgia, USA.

Funding

Atlanta Clinical and Translational Science Institute (ACTSI) RenewalUL1TR000454 · NCATS · EMORY UNIVERSITY · PI STEPHENS, DAVID S · 2012 to 2016
$25.8M
UAB CF Research and Translation Core CenterP30DK072482 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI David M. Bedwell · 2007 to 2026
$23.0M
NCATS NIH HHS UL1 TR000454NIDDK NIH HHS P30 DK072482
6 · The paper itself

Abstract

Emerging knowledge indicates the difficulty in categorizing unusual cystic fibrosis (CF) mutations, with regard to both pathogenic mechanism and theratype. As case in point, we present data concerning P67L mutation of the cystic fibrosis transmembrane conductance regulator (CFTR), a defect carried by a small number of individuals with CF and sometimes attributed to a channel conductance abnormality. Findings from our laboratory and others establish that P67L causes protein misfolding, disrupts maturation, confers gating defects, is thermally stable, and exhibits near normal conductance. These results provide one framework by which rare CF alleles such as P67L can be more comprehensively profiled vis-à-vis molecular pathogenesis. We also demonstrate that emerging CF treatments - ivacaftor and lumacaftor - can mediate pronounced pharmacologic activation of P67L CFTR. Infrequent CF alleles are often improperly characterized, in part, due to the small numbers of patients involved. Moreover, access to new personalized treatments among patients with ultra-orphan genotypes has been limited by difficulty arranging phase III clinical trials, and off-label prescribing has been impaired by high drug cost and difficulty arranging third party reimbursement. Rare CFTR mutations such as P67L are emblematic of the challenges to "precision" medicine, including use of the best available mechanistic knowledge to treat patients with unusual forms of disease.

Identifiers

PMID27660821
PMCPMC5029786

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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.