Evidence map›Paper›PMID 28431248›Full record

ArticleCell2017

Spontaneous Chitin Accumulation in Airways and Age-Related Fibrotic Lung Disease.

Steven J Van Dyken, Hong-Erh Liang, Ram P Naikawadi, Prescott G Woodruff, Paul J Wolters, David J Erle, Richard M Locksley

Abstract read
In one paragraph

Article in Cell, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

64 citing papers in PubMed, 102 citations in OpenAlex.

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  10. Fungal chitin is not an independent mediator of allergic fungal asthma severity.American journal of physiology. Lung cellular and molecular physiology · 2024
    Article
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4 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

7 authors at 1 institution in 1 country.

Steven J Van DykenDepartment of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA.
Hong-Erh LiangDepartment of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA.
Ram P NaikawadiDepartment of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA.
Prescott G WoodruffDepartment of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA.
Paul J WoltersDepartment of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA.
David J ErleDepartment of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA.
Richard M LocksleyDepartment of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA; Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA; Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143, USA. Electronic address: richard.locksley@ucsf.edu.
University of California, San Francisco · US

Funding

Role of miRNAs in Th2-Driven inflammation in AsthmaP01HL107202 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI FAHY, JOHN V · 2012 to 2023
$23.3M
Initiation of allergic immunity by parasitesR01AI030663 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LOCKSLEY, RICHARD M · 1991 to 2016
$5.7M
Parasite immunity orchestrated by type 2 immune cellsR01AI026918 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LOCKSLEY, RICHARD M · 1988 to 2022
$3.8M
Parasite Immunity Orchestrated by Th2 CellsR37AI026918 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LOCKSLEY, RICHARD M · 2006 to 2015
$3.8M
Epithelial chitinase and lung homeostasisR01HL128903 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LOCKSLEY, RICHARD M · 2015 to 2018
$1.6M
Howard Hughes Medical InstituteNHLBI NIH HHS P01 HL107202NHLBI NIH HHS R01 HL128903NIAID NIH HHS R01 AI026918NIAID NIH HHS R01 AI030663NIAID NIH HHS R37 AI026918
6 · The paper itself

Abstract

The environmentally widespread polysaccharide chitin is degraded and recycled by ubiquitous bacterial and fungal chitinases. Although vertebrates express active chitinases from evolutionarily conserved loci, their role in mammalian physiology is unclear. We show that distinct lung epithelial cells secrete acidic mammalian chitinase (AMCase), which is required for airway chitinase activity. AMCase-deficient mice exhibit premature morbidity and mortality, concomitant with accumulation of environmentally derived chitin polymers in the airways and expression of pro-fibrotic cytokines. Over time, these mice develop spontaneous pulmonary fibrosis, which is ameliorated by restoration of lung chitinase activity by genetic or therapeutic approaches. AMCase-deficient epithelial cells express fibrosis-associated gene sets linked with cell stress pathways. Mice with lung fibrosis due to telomere dysfunction and humans with interstitial lung disease also accumulate excess chitin polymers in their airways. These data suggest that altered chitin clearance could exacerbate fibrogenic pathways in the setting of lung diseases characterized by epithelial cell dysfunction.

Indexed as

AgingAnimalsAspergillus nigerChitinChitinasesCytokinesEpithelial CellsFibrosisGene Knock-In TechniquesInflammationLungLung DiseasesMiceMice, KnockoutPyroglyphidaeSignal TransductionAMCase, mouseChitinChitinasesCytokinesage-related diseaseAMCasechitinchitinaseepitheliuminterleukinsinterstitial lung diseasepolysaccharidepulmonary fibrosis

Identifiers

PMID28431248
PMCPMC5444468
OpenAlexW2606047052

What OpenQuestion holds

Textmetadata
LicenceTDM
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.