Evidence map›Paper›PMID 15191915›Full record

ArticleAmerican journal of respiratory cell and molecular biology2004

Mucin is produced by clara cells in the proximal airways of antigen-challenged mice.

Christopher M Evans, Olatunji W Williams, Michael J Tuvim, Rupesh Nigam, George P Mixides, Michael R Blackburn, Francesco J DeMayo, Alan R Burns, Charlotte Smith, Susan D Reynolds and 2 more

Open access · greenAbstract readComparative Study
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 176 papers.

0numbers the graph read from it
0cells of the map it votes in
176citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

176 citing papers in PubMed, 283 citations in OpenAlex.

  1. Airway secretory cells contain both a perinuclear Golgi ribbon and dispersed Golgi satellites.American journal of respiratory cell and molecular biology · 2026
    Article
  2. Review
  3. Article
  4. Article
  5. Lung organoids: a new frontier in neonatology and paediatric respiratory medicine.European respiratory review : an official journal of the European Respiratory Society · 2025
    Review
  6. Review
  7. Mucins and Their Roles in Asthma.Immunological reviews · 2025
    Review
  8. Requirement for Fucosyltransferase 2 in Allergic Airway Hyperreactivity and Mucus Obstruction.American journal of respiratory cell and molecular biology · 2025
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. An update in club cell biology and its potential relevance to chronic obstructive pulmonary disease.American journal of physiology. Lung cellular and molecular physiology · 2023
    Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Mucins MUC5AC and MUC5B Are Variably Packaged in the Same and in Separate Secretory Granules.American journal of respiratory and critical care medicine · 2022
    Article

116 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 1 institution in 1 country.

Christopher M EvansPulmonary Medicine, M.D. Anderson Cancer Center, 2121 West Holcombe Blvd., Houston, TX 77030, USA. cevans@mdanderson.org
Olatunji W Williams
Michael J Tuvim
Rupesh Nigam
George P Mixides
Michael R Blackburn
Francesco J DeMayo
Alan R Burns
Charlotte Smith
Susan D Reynolds
Barry R Stripp
Burton F Dickey
University of Pittsburgh · US

Funding

CLARA CELL SECRETION AND OXIDANT LUNG POLLUTANTSR01ES008964 · NIEHS · UNIVERSITY OF ROCHESTER · PI STRIPP, BARRY R · 1997 to 2008
$2.3M
Munc18 Proteins in Airway Mucus HypersecretionR01HL072984 · NHLBI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI DICKEY, BURTON F · 2003 to 2006
$1.5M
Clara Cells, Their Secretions in Lung Immuno-regulationR01HL070575 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI STRIPP, BARRY R · 2001 to 2004
$1.5M
NEUTROPHILS TRANSENDOTHELIAL MIGRATION: MOLECULAR EVENTSR01AI046773 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI BURNS, ALAN R · 2000 to 2004
$1.1M
CONTROL OF SURFACTANT SECRETION BY GTP BINDING PROTEINSR01HL043161 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI DICKEY, BURTON F · 1989 to 2002
$603k
Pathophysiology of Mucus Hypersecretion in AsthmaF32HL069650 · NHLBI · BAYLOR COLLEGE OF MEDICINE · PI EVANS, CHRISTOPHER M · 2002 to 2003
$85k
NHLBI NIH HHS F32 HL069650NHLBI NIH HHS HL043161NHLBI NIH HHS HL069650NHLBI NIH HHS HL070575NHLBI NIH HHS HL072984NHLBI NIH HHS R01 HL070575NHLBI NIH HHS R01 HL072984NIAID NIH HHS AI046773NIAID NIH HHS R01 AI046773NIEHS NIH HHS ES008964NIEHS NIH HHS R01 ES008964
6 · The paper itself

Abstract

Airway mucus hypersecretion is a prominent feature of many obstructive lung diseases. We thus determined the ontogeny and exocytic phenotype of mouse airway mucous cells. In naive mice, ciliated (approximately 40%) and nonciliated (approximately 60%) epithelial cells line the airways, and > 95% of the nonciliated cells are Clara cells that contain Clara cell secretory protein (CCSP). Mucous cells comprise < 5% of the nonciliated cells. After sensitization and a single aerosol antigen challenge, alcian blue-periodic acid Schiff's positive mucous cell numbers increase dramatically, appearing 6 h after challenge (21% of nonciliated/nonbasal cells), peaking from Days 1-7 (99%), and persisting at Day 28 (65%). Throughout the induction and resolution of mucous metaplasia, ciliated and Clara cell numbers identified immunohistochemically change only slightly. Intracellular mucin content peaks at Day 7, and mucin expression is limited specifically to a Clara cell subset in airway generations 2-4 that continue to express CCSP. Functionally, Clara cells are secretory cells that express the regulated exocytic marker Rab3D and, in antigen-challenged mice, rapidly secrete mucin in response to inhaled ATP in a dose-dependent manner. Thus, Clara cells show great plasticity in structure and secretory products, yet have molecular and functional continuity in their identity as specialized apical secretory cells.

Indexed as

Adenosine TriphosphateAnimalsBronchiCiliaEnzyme InhibitorsEpithelial CellsExocytosisFemaleImmunoenzyme TechniquesMetaplasiaMiceMice, Inbred BALB CMucin 5ACMucinsMucusPromoter Regions, GeneticAdenosine TriphosphateEnzyme InhibitorsMuc5ac protein, mouseMucin 5ACMucinsRab3b protein, mouseRab3d protein, mouserab3 GTP-Binding ProteinsScgb1a1 protein, mouseUteroglobin

Identifiers

PMID15191915
PMCPMC10862391
OpenAlexW2116895538

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.