Evidence map›Paper›PMID 22592924›Full record

ArticleAmerican journal of respiratory cell and molecular biology2012

Regulation of airway and alveolar epithelial cell apoptosis by p53-Induced plasminogen activator inhibitor-1 during cigarette smoke exposure injury.

Shwetha K Shetty, Yashodhar P Bhandary, Amarnath S Marudamuthu, Daniel Abernathy, Thirunavukkarasu Velusamy, Barry Starcher, Sreerama Shetty

Abstract read
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

31 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
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  3. p53-miR-34a feedback in lung fibroblasts regulates antifibrotic effects of CSP7, nintedanib, and pirfenidone.American journal of physiology. Lung cellular and molecular physiology · 2025
    Article
  4. Article
  5. Caveolin-1-derived peptide attenuates cigarette smoke-induced airway and alveolar epithelial injury.American journal of physiology. Lung cellular and molecular physiology · 2023
    Article
  6. Review
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  8. Article
  9. Review
  10. Article
  11. An aberrant STAT pathway is central to COVID-19.Cell death and differentiation · 2020
    Review
  12. Article
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  16. Article
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  18. Article
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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.

Shwetha K ShettyThe Texas Lung Injury Institute, The University of Texas Health Science Center at Tyler, 11937 US HWY 271, Lab C-6, Tyler, TX, 75708, USA. sreerama.shetty@uthct.edu
Yashodhar P Bhandary
Amarnath S Marudamuthu
Daniel Abernathy
Thirunavukkarasu Velusamy
Barry Starcher
Sreerama Shetty
The University of Texas Health Science Center at Tyler · US

Funding

Regulation of lung epithelial injury by plasminogen activator inhibitor-1R21HL093547 · NHLBI · UNIVERSITY OF TEXAS HLTH CTR AT TYLER · PI SHETTY, SREERAMA · 2010 to 2011
$388k
NHLBI NIH HHS R21 HL093547NHLBI NIH HHS R21-HL093547
6 · The paper itself

Abstract

Increased expression of tumor suppressor protein p53 and of plasminogen activator inhibitor (PAI)-1 is associated with cigarette smoke (CS) exposure-induced lung epithelial injury. p53 induces PAI-1 through mRNA stabilization in lung epithelial cells. However, it is unclear how this process affects lung epithelial damage. Here, we show that CS induces p53 and PAI-1 expression and apoptosis in cultured Beas2B and primary alveolar type (AT)II cells. CS exposure augmented binding of p53 protein with PAI-1 mRNA. Inhibition of p53 from binding to PAI-1 mRNA through expression of p53-binding 70 nt PAI-1 mRNA 3'UTR sequences suppressed CS-induced PAI-1 expression. Treatment of Beas2B cells with caveolin-1 scaffolding domain peptide (CSP) suppressed p53 expression and p53-PAI-1 mRNA interaction. These changes were associated with parallel inhibition of CS-induced PAI-1 expression and apoptosis in Beas2B cells. Wild-type mice exposed to passive CS likewise show augmented p53 and PAI-1 with parallel induction of ATII cell apoptosis, whereas mice deficient for p53 or PAI-1 expression resisted apoptosis of ATII cells. CSP suppressed CS-induced ATII cell apoptosis in wild-type mice and abrogated p53-PAI-1 mRNA interaction with parallel inhibition of p53 and PAI-1 expression. The protection against ATII cell apoptosis by CSP involves inhibition of passive CS-induced proapoptotic Bax and Bak expression and restoration of the prosurvival proteins Bcl-X(L). These observations demonstrate that inhibition of p53 binding to PAI-1 mRNA 3'UTR attenuates CS-induced ATII cell apoptosis. This presents a novel link between p53-mediated PAI-1 expression and CS-induced ATII cell apoptosis.

Indexed as

ApoptosisAlveolar Epithelial CellsAnimalsBronchoalveolar Lavage FluidCaveolin 1Cell LineGene Expression RegulationHumansLungMiceMice, Inbred C57BLNicotianaPeptide FragmentsPlasminogen Activator Inhibitor 1Respiratory MucosaRNA StabilityCaveolin 1Peptide FragmentsPlasminogen Activator Inhibitor 1SERPINE1 protein, humanSmokeTP53 protein, humanTumor Suppressor Protein p53

Identifiers

PMID22592924
PMCPMC3488631
OpenAlexW2141277692

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.