Evidence map›Paper›PMID 30721158›Full record

ArticleJCI insight2019

An SFTPC BRICHOS mutant links epithelial ER stress and spontaneous lung fibrosis.

Jeremy Katzen, Brandie D Wagner, Alessandro Venosa, Meghan Kopp, Yaniv Tomer, Scott J Russo, Alvis C Headen, Maria C Basil, James M Stark, Surafel Mulugeta and 2 more

Open access · goldAbstract read
In one paragraph

Article in JCI insight, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed, 1 pooled it
12.6field-weighted citation impact, top 1% 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

98 citing papers in PubMed, 1 synthesis or guideline pooled it, 124 citations in OpenAlex.

  1. Impact of Cardiovascular Diseases on COVID-19: A Systematic Review.Medical science monitor : international medical journal of experimental and clinical research · 2021
    Pooled it
  2. Review
  3. Article
  4. Review
  5. Murine models of pulmonary fibrosis: mechanisms, limitations and translational insights.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  6. Review
  7. Review
  8. Hallmarks of the ageing lung: 10 years later.The European respiratory journal · 2026
    Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Targeting the epithelium in pulmonary fibrosis.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article

38 more citing papers are in PubMed but not listed here.

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

12 authors at 5 institutions in 1 country.

Jeremy KatzenPulmonary, Allergy, and Critical Care Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Brandie D WagnerDepartment of Biostatistics and Informatics, Colorado School of Public Health, Aurora, Colorado, USA.
Alessandro VenosaPulmonary, Allergy, and Critical Care Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Meghan KoppPulmonary, Allergy, and Critical Care Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Yaniv TomerPulmonary, Allergy, and Critical Care Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Scott J RussoPulmonary, Allergy, and Critical Care Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Alvis C HeadenPulmonary, Allergy, and Critical Care Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Maria C BasilPulmonary, Allergy, and Critical Care Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
James M StarkDivision of Pediatric Pulmonology, Department of Pediatrics, University of Texas Health Science Center, Houston, Texas, USA.
Surafel MulugetaPulmonary, Allergy, and Critical Care Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Robin R DeterdingDepartment of Pediatrics and Breathing Institute, University of Colorado School of Medicine, Aurora, Colorado, USA.
Michael F BeersPulmonary, Allergy, and Critical Care Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
University of Pennsylvania · USColorado School of Public Health · USPenn Center for AIDS Research · USThe University of Texas Health Science Center at Houston · USUniversity of Colorado Denver · US

Funding

Translational Research Support CoreP30ES013508 · NIEHS · UNIVERSITY OF PENNSYLVANIA · PI Rebecca A Simmons · 2006 to 2026
$35.3M
TRAINING IN PULMONARY IMMUNOLOGYT32HL007586 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI MEYER, NUALA JENNINGS · 1985 to 2025
$8.8M
Alveolar Epithelial Cell Dysfunction in Pulmonary Fibrosis: Leveraging SFTPC Mutations for Discovery of Molecular and Cellular TargetsR01HL145408 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI MICHAEL FRANCIS BEERS · 2019 to 2026
$4.6M
Biosynthesis and Trafficking of Surfactant Protein C In Health and DiseaseR01HL119436 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI BEERS, MICHAEL FRANCIS · 2013 to 2017
$2.0M
The Biology of the ABCA3 Lipid Transporter in Health and DiseaseR01HL129150 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI MULUGETA, SURAFEL · 2016 to 2019
$1.9M
Surfactant Protein C Mutations and Interstitial Lung DiseaseI01BX001176 · VA · PHILADELPHIA VA MEDICAL CENTER · PI MICHAEL FRANCIS BEERS · 2012 to 2026
–
BLRD VA I01 BX001176NHLBI NIH HHS R01 HL119436NHLBI NIH HHS R01 HL129150NHLBI NIH HHS R01 HL145408NHLBI NIH HHS T32 HL007586NIEHS NIH HHS P30 ES013508
6 · The paper itself

Abstract

Alveolar type 2 (AT2) cell endoplasmic reticulum (ER) stress is a prominent feature in adult and pediatric interstitial lung disease (ILD and ChILD), but in vivo models linking AT2 cell ER stress to ILD have been elusive. Based on a clinical ChILD case, we identified a critical cysteine residue in the surfactant protein C gene (SFTPC) BRICHOS domain whose mutation induced ER stress in vitro. To model this in vivo, we generated a knockin mouse model expressing a cysteine-to-glycine substitution at codon 121 (C121G) in the Sftpc gene. SftpcC121G expression during fetal development resulted in a toxic gain-of-function causing fatal postnatal respiratory failure from disrupted lung morphogenesis. Induced SftpcC121G expression in adult mice resulted in an ER-retained pro-protein causing AT2 cell ER stress. SftpcC121G AT2 cells were a source of cytokines expressed in concert with development of polycellular alveolitis. These cytokines were subsequently found in a high-dimensional proteomic screen of bronchoalveolar lavage fluid from ChILD patients with the same class of SFTPC mutations. Following alveolitis resolution, SftpcC121G mice developed spontaneous pulmonary fibrosis and restrictive lung impairment. This model provides proof of concept linking AT2 cell ER stress to fibrotic lung disease coupled with translationally relevant biomarkers.

Indexed as

MutationAlveolar Epithelial CellsAnimalsBronchoalveolar Lavage FluidCytokinesDisease Models, AnimalEndoplasmic ReticulumEndoplasmic Reticulum StressFemaleGenetic Predisposition to DiseaseHumansInfant, NewbornLungMaleMembrane ProteinsMiceCytokinesITM2C protein, humanMembrane ProteinsPulmonary Surfactant-Associated Protein CSFTPC protein, humanCell stressFibrosisProtein misfoldingPulmonology

Identifiers

PMID30721158
PMCPMC6483196
OpenAlexW2911484303

What OpenQuestion holds

Textmetadata
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.