Evidence map›Paper›PMID 20650887›Full record

ArticleThe Journal of biological chemistry2010

The chitinase-like protein YKL-40 is secreted by airway epithelial cells at base line and in response to compressive mechanical stress.

Jin-Ah Park, Jeffrey M Drazen, Daniel J Tschumperlin

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 2 pooled it
–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

49 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. A molecular systems architecture of asthma.Frontiers in immunology · 2026
    Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. CRTH2 in Pulmonary Fibrosis: Friend or Foe?American journal of respiratory cell and molecular biology · 2022
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Airway mechanical compression: its role in asthma pathogenesis and progression.European respiratory review : an official journal of the European Respiratory Society · 2020
    Review
  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

3 authors.

Jin-Ah ParkDepartment of Environmental Health, Harvard School of Public Health, Boston, Massachusetts 02115, USA.
Jeffrey M Drazen
Daniel J Tschumperlin

Funding

Mechanical Stress as a Stimulus for Airway RemodelingR01HL088028 · NHLBI · HARVARD SCHOOL OF PUBLIC HEALTH · PI DRAZEN, JEFFREY MARK · 2007 to 2011
$2.0M
Transduction of the environment in airway epitheliumR01HL082856 · NHLBI · HARVARD SCHOOL OF PUBLIC HEALTH · PI TSCHUMPERLIN, DANIEL J. · 2006 to 2009
$1.4M
NHLBI NIH HHS HL082856NHLBI NIH HHS HL88028NHLBI NIH HHS R01 HL082856NHLBI NIH HHS R01 HL088028
6 · The paper itself

Abstract

The chitinase-like protein YKL-40, encoded by the CHI3L1 gene, is a biomarker and functional effector of chronic inflammatory and allergic diseases. In the lung it is associated with asthma severity and reduced lung function. The cellular sources of YKL-40 in human airways and the mechanisms regulating YKL-40 expression are poorly understood. We previously showed that mechanical stress similar to that experienced during bronchoconstriction triggers epithelial cell signaling through epidermal growth factor receptor (EGFR), fibrotic mediator release, and goblet cell hyperplasia consistent with airway remodeling in asthma. We now show that well differentiated normal human bronchial epithelial cells express CHI3L1 and secrete YKL-40 under base-line culture conditions. Mechanical stress (30-cm H(2)O transcellular compressive stress) applied for 3 h induces CHI3L1 expression by ∼4-fold compared with time matched controls, resulting in increased secretion of YKL-40 by 3.6-fold 24 h after onset of the 3-h stimulus. Inhibition of EGFR or MEK1/2 (ERK kinase) significantly but incompletely attenuates mechanical stress-induced up-regulation of CHI3L1 expression in normal human bronchial epithelial cells. Direct activation of EGFR utilizing EGF-family ligands induces CHI3L1 expression. Our results reveal that human airway epithelial cells are a source of YKL-40 and demonstrate that mechanical stress potently induces CHI3L1 expression leading to increased secretion of YKL-40 protein in an EGFR and MEK1/2-dependent pathway. In the asthmatic airway mechanical stress may contribute to enhanced YKL-40 levels.

Indexed as

Gene Expression RegulationStress, PhysiologicalAdipokinesBiomarkersCells, CulturedChitinase-3-Like Protein 1ErbB ReceptorsGlycoproteinsGoblet CellsHumansHypersensitivityLectinsMAP Kinase Kinase 1MAP Kinase Kinase 2Respiratory MucosaAdipokinesBiomarkersCHI3L1 protein, humanChitinase-3-Like Protein 1EGFR protein, humanErbB ReceptorsGlycoproteinsLectinsMAP2K1 protein, humanMAP2K2 protein, humanMAP Kinase Kinase 1MAP Kinase Kinase 2

Identifiers

PMID20650887
PMCPMC2943267

What OpenQuestion holds

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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.