2002
DOI: 10.1038/ni773
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Decreased allergic lung inflammatory cell egression and increased susceptibility to asphyxiation in MMP2-deficiency

Abstract: Clearance of recruited immune cells is necessary to resolve inflammatory reactions. We show here that matrix metalloproteinase 2 (MMP2), as part of an interleukin 13 (IL-13)-dependent regulatory loop, dampens inflammation by promoting the egress of inflammatory cells into the airway lumen. MMP2 −/− mice showed a robust asthma phenotype and increased susceptibility to asphyxiation induced by allergens. However, whereas the lack of MMP2 reduced the influx of cells into bronchoalveolar lavage (BAL), numerous infl… Show more

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Cited by 240 publications
(223 citation statements)
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References 49 publications
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“…The increase in cells and myeloperoxidase activity in BAL suggests that neutrophils are actively recruited in the airway in this model of injury. In opposite, lack of MMP-2 is related to the sequestration of neutrophils inside the interstitium, without invasion of the air spaces (9). It is known that MMP-9 can cleave different cytoand chemokines, like IL-1␤ (23).…”
Section: Discussionmentioning
confidence: 99%
“…The increase in cells and myeloperoxidase activity in BAL suggests that neutrophils are actively recruited in the airway in this model of injury. In opposite, lack of MMP-2 is related to the sequestration of neutrophils inside the interstitium, without invasion of the air spaces (9). It is known that MMP-9 can cleave different cytoand chemokines, like IL-1␤ (23).…”
Section: Discussionmentioning
confidence: 99%
“…The role for MMP-14 in activation of MMP-2 is further questioned by a lack of phenocopy between null mouse lines. Whereas MMP-2 null mice reveal mild phenotypes, mostly related to neovascularization and inflammation (Berglin et al, 2003;Corry et al, 2002;Itoh et al, 2002;Itoh et al, 1998;Kato et al, 2001;Ohno-Matsui et al, 2003), MMP-14 knock-out mice have severe defects in skeletal development and turnover of type I collagen (Holmbeck et al, 1999;Holmbeck et al, 2003;Zhou et al, 2000). Overall, the in vivo data indicate that MMP-14 is not required for activation of MMP-2, but they do not rule the possibility that other membrane-type MMPs might be involved.…”
Section: Activation Of Prommps By Mmpsmentioning
confidence: 96%
“…MMP9 cleaves and activates CXCL6 and CXCL8 (also known as interleukin-8 (IL8)), whereas it inactivates CXCL1 and CXCL4 (REFS 93,94 ). In asthma models, eosinophils from Mmp2-or Mmp9-deficient mice fail to migrate into the airways and accumulate in the interstitium, thereby predisposing the animals to asphyxiation 95,96 . MMP2 and MMP9 participate in a regulatory loop that dampens allergic inflammation.…”
Section: Pro-inflammatory and Anti-inflammatory Mmp Functionsmentioning
confidence: 99%