2001
DOI: 10.1034/j.1398-9995.2001.056002145.x
|View full text |Cite
|
Sign up to set email alerts
|

Matrix metalloproteinases and TIMP‐1 production by peripheral blood granulocytes from COPD patients and asthmatics

Abstract: Both asthmatic and COPD patients were found to have increased amounts of granulocytes and matrix metalloproteinase-9 (MMP-9) in their sputum. The present study was conducted to investigate whether the elevated amounts of MMP-9 and TIMP-1 found in such patients' airways may be linked to an enhanced secretion by granulocytes. Blood granulocytes from asthmatics (n = 10), COPD patients (n = 11), and healthy controls (n = 11) were isolated and cultured under basal conditions or after stimulation by phorbol 12-myris… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1

Citation Types

3
41
0

Year Published

2002
2002
2013
2013

Publication Types

Select...
6
1
1

Relationship

0
8

Authors

Journals

citations
Cited by 54 publications
(44 citation statements)
references
References 30 publications
3
41
0
Order By: Relevance
“…Increased levels of MMP-9 were indeed detected in bronchoalveolar lavage fluid (Mautino et al, 1997), sputum induced by the inhalation of hypertonic saline (Cataldo et al, 2000;Vignola et al, 1998b) and in serum of asthmatic patients (Bosse et al, 1999). The increased MMP-9 activity observed in the airways of asthmatic patients seems related to an increased number of granulocytes and more precisely neutrophils in the airways rather than to an enhancement of MMP-9 secretion by those cells (Cataldo et al, 2001;Prause et al, 2004). Other authors have suggested that eosinophils, key cells in asthma-related airway inflammation, could also be a major source for MMP-9 in this disease (Ohno et al, 1997).…”
mentioning
confidence: 83%
See 2 more Smart Citations
“…Increased levels of MMP-9 were indeed detected in bronchoalveolar lavage fluid (Mautino et al, 1997), sputum induced by the inhalation of hypertonic saline (Cataldo et al, 2000;Vignola et al, 1998b) and in serum of asthmatic patients (Bosse et al, 1999). The increased MMP-9 activity observed in the airways of asthmatic patients seems related to an increased number of granulocytes and more precisely neutrophils in the airways rather than to an enhancement of MMP-9 secretion by those cells (Cataldo et al, 2001;Prause et al, 2004). Other authors have suggested that eosinophils, key cells in asthma-related airway inflammation, could also be a major source for MMP-9 in this disease (Ohno et al, 1997).…”
mentioning
confidence: 83%
“…Besides MMP-9 production, neutrophils also produce MMP-8 that is stored in their secondary granules and released upon stimulation. An increase of MMP-8 expression has been reported in bronchial biopsies and in bronchoalveolar lavage from asthmatic patients suggesting that this enzyme could play an important role in this disease (Cataldo et al, 2001;Prikk et al, 2002). To verify this hypothesis, we recently applied a mouse model of asthma to MMP-8 deficient mice (MMP-8 KO) and we found surprisingly that mice lacking MMP-8 displayed a severe granulocytic inflammation in airways after allergen exposure .…”
Section: Implication Of Mmps In the Pathogenesis Of Asthmamentioning
confidence: 99%
See 1 more Smart Citation
“…Neutrophils are an important source of MMP-9 and TIMP-1 [23,24]. CATALDO et al [24] reported that the spontaneous release of TIMP-1 and MMP-9 secretion by circulating granulocytes was similar in COPD patients, asthmatic subjects and control subjects.…”
Section: Discussionmentioning
confidence: 99%
“…31 We elucidate the subcellular distribution of the p65 NF-kB subunit in granulocytes treated with TNF-a (50 ng/ml) for 4 h in vitro. 3T3 cell lysates were used as reference controls.…”
Section: Resultsmentioning
confidence: 99%