Evidence map›Paper›PMID 18256027›Full record

ArticleThe Journal of biological chemistry2008

Pepsinogen C proteolytic processing of surfactant protein B.

Kristin D Gerson, Cherie D Foster, Peggy Zhang, Zhenguo Zhang, Michael M Rosenblatt, Susan H Guttentag

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

19 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Antiinflammatory Effects of Budesonide in Human Fetal Lung.American journal of respiratory cell and molecular biology · 2016
    Article
  6. Article
  7. Article
  8. Article
  9. Biomarkers for gastroesophageal reflux in respiratory diseases.Gastroenterology research and practice · 2013
    Article
  10. Article
  11. Article
  12. Article
  13. Regulated gene expression in cultured type II cells of adult human lung.American journal of physiology. Lung cellular and molecular physiology · 2010
    Article
  14. Article
  15. Article
  16. C/EBP{alpha} is required for pulmonary cytoprotection during hyperoxia.American journal of physiology. Lung cellular and molecular physiology · 2009
    Article
  17. Article
  18. Article
  19. 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

6 authors at 2 institutions in 1 country.

Kristin D GersonDivision of Neonatology, Department of Pediatrics, The University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA.
Cherie D Foster
Peggy Zhang
Zhenguo Zhang
Michael M Rosenblatt
Susan H Guttentag
University of Pennsylvania · USChildren's Hospital of Philadelphia · US

Funding

MOLECULAR SIGNALS FOR TRAFFICKING SURFACTANT PROTEIN BR01HL059959 · NHLBI · CHILDREN'S HOSP OF PHILADELPHIA · PI GUTTENTAG, SUSAN H. · 1998 to 2011
$3.4M
Molecular Signals for Trafficking Surfactant Protein BR56HL059959 · NHLBI · CHILDREN'S HOSP OF PHILADELPHIA · PI GUTTENTAG, SUSAN H. · 2007 to 2007
$378k
NHLBI NIH HHS HL059959NHLBI NIH HHS HL077226NHLBI NIH HHS R01 HL059959
6 · The paper itself

Abstract

Surfactant protein B (SP-B) is essential to the function of pulmonary surfactant and to lamellar body genesis in alveolar epithelial type 2 cells. The bioactive, mature SP-B is derived from multistep post-translational proteolysis of a larger proprotein. The identity of the proteases involved in carboxyl-terminal cleavage of proSP-B remains uncertain. This cleavage event distinguishes SP-B production in type 2 cells from less complete processing in bronchiolar Clara cells. We previously identified pepsinogen C as an alveolar type 2 cell-specific protease that was developmentally regulated in the human fetal lung. We report that pepsinogen C cleaved recombinant proSP-B at Met(302) in addition to an amino-terminal cleavage at Ser(197). Using a well described model of type 2 cell differentiation, small interfering RNA knockdown of pepsinogen C inhibited production of mature SP-B, whereas overexpression of pepsinogen C increased SP-B production. Inhibition of SP-B production recapitulated the SP-B-deficient phenotype evident by aberrant lamellar body genesis. Together, these data support a primary role for pepsinogen C in SP-B proteolytic processing in alveolar type 2 cells.

Indexed as

Amino Acid SequenceBronchiHumansLungModels, BiologicalMolecular Sequence DataPepsinogen CProtein BindingProtein Processing, Post-TranslationalProtein Structure, TertiaryPulmonary Surfactant-Associated Protein BRecombinant ProteinsRNA, Small InterferingSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationTrypsinPepsinogen CPulmonary Surfactant-Associated Protein BRecombinant ProteinsRNA, Small InterferingTrypsin

Identifiers

PMID18256027
PMCPMC2447652
OpenAlexW1979536103

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.