Evidence map›Paper›PMID 17099140›Full record

ArticleAmerican journal of respiratory cell and molecular biology2007

Cigarette smoke stimulates matrix metalloproteinase-2 activity via EGR-1 in human lung fibroblasts.

Wen Ning, Yingying Dong, Jingxia Sun, Chaojun Li, Michael A Matthay, Carol A Feghali-Bostwick, Augustine M K Choi

Open access · greenAbstract read
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
2.7field-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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 70 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Role of early growth response 1 in inflammation-associated lung diseases.American journal of physiology. Lung cellular and molecular physiology · 2023
    Review
  5. Review
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Matrix Remodeling in Pulmonary Fibrosis and Emphysema.American journal of respiratory cell and molecular biology · 2016
    Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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 2 institutions in 2 countries.

Wen NingUniversity of Pittsburgh, Pulmonary, Allergy and Critical Care Medicine, MUH 628 NW, 3459 Fifth Ave., Pittsburgh, PA 15213, USA.
Yingying Dong
Jingxia Sun
Chaojun Li
Michael A Matthay
Carol A Feghali-Bostwick
Augustine M K Choi
University of Pittsburgh · USHouston Methodist · US

Funding

NITRIC OXIDE AND METALLOTIONEIMP01HL070807 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KAGAN, VALERIAN E · 2003 to 2007
$8.1M
The Role of HEME Oxygenase in Hyperoxic Lung InjuryR01HL055330 · NHLBI · YALE UNIVERSITY · PI CHOI, AUGUSTINE M, CHOI, MARY E · 1998 to 2021
$6.6M
HEME OXYGENASE 1--LUNG VASCULAR CELL HYPOXIC RESPONSER01HL060234 · NHLBI · YALE UNIVERSITY · PI CHOI, AUGUSTINE M, CHOI, MARY E · 1999 to 2017
$5.8M
Heme oxygenase-1: Regulation and Function in CaveolaeR01HL079904 · NHLBI · WEILL MEDICAL COLL OF CORNELL UNIV · PI CHOI, MARY E · 2005 to 2014
$2.9M
NHLBI NIH HHS P01 HL070807NHLBI NIH HHS R01 HL055330NHLBI NIH HHS R01 HL060234NHLBI NIH HHS R01 HL079904
6 · The paper itself

Abstract

Cigarette smoking is a major risk factor for chronic obstructive pulmonary disease (COPD). Recent reports of increased matrix metalloproteinase-2 (MMP-2) in lungs of patients with emphysema support the paradigm of proteinase/antiproteinase imbalance in the pathogenesis of COPD. We sought to define the signaling pathways activated by smoke and to identify molecules responsible for emphysema-associated MMP-2 expression. In this study, we show that cigarette smoke extract (CSE) induced MMP-2 protein expression and increased MMP-2 gelatinase activity of normal lung fibroblasts. We previously identified a transcription factor, early growth response 1 (EGR-1), with robust expression in the lung tissues of patients with COPD compared with control smokers. Here, the treatment of fibroblasts with CSE resulted in marked induction of EGR-1 mRNA and protein in a dose- and time-dependent manner, accompanied by increased EGR-1 binding activity. CSE-induced MMP-2 mRNA and protein expression and activity were significantly inhibited using EGR-1 small interfering RNA (siRNA) or in Egr-1-null(-/-) mouse fibroblasts. Furthermore, we observed induction of membrane type 1 matrix metalloproteinase (MT1-MMP), which has an EGR-1-binding site on its promoter, in CSE-treated primary normal lung fibroblasts. The concomitant MT1-MMP expression and MMP-2 activation by CSE are inhibited by EGR-1 siRNA. Rapid activation of mitogen-activated protein kinases was observed in CSE-treated fibroblasts. Chemical inhibitors of ERK1/2 MAPK, but not of p38 and JNK, decreased CSE-induced EGR-1 protein expression and MMP-2 activity of fibroblasts. The identification that induction of MMP-2 and MT1-MMP by CSE from lung fibroblasts is EGR-1-dependent reveals a molecular mechanism for matrix remodeling in cigarette smoke-related emphysema.

Indexed as

SmokingAnimalsCells, CulturedDNA-Binding ProteinsEarly Growth Response Protein 1Enzyme ActivationFibroblastsHumansLungMaleMAP Kinase Signaling SystemMatrix Metalloproteinase 14Matrix Metalloproteinase 2MiceMiddle AgedPulmonary Disease, Chronic ObstructiveDNA-Binding ProteinsEarly Growth Response Protein 1EGR1 protein, humanEgr1 protein, mouseMatrix Metalloproteinase 14Matrix Metalloproteinase 2RNA, MessengerRNA, Small Interfering

Identifiers

PMID17099140
PMCPMC1899323
OpenAlexW2014933300

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.