Buchumschlag

Critical role of the disintegrin metalloprotease ADAM17 for intestinal inflammation and regeneration in mice

The protease a disintegrin and metalloprotease (ADAM) 17 cleaves tumor necrosis factor (TNF), L-selectin, and epidermal growth factor receptor (EGF-R) ligands from the plasma membrane. ADAM17 is expressed in most tissues and is up-regulated during inflammation and cancer. ADAM17-deficient mice are n...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Chalaris, Athena (VerfasserIn) , Adam, Nina (VerfasserIn) , Sina, Christian (VerfasserIn) , Rosenstiel, Philip (VerfasserIn) , Lehmann-Koch, Judith (VerfasserIn) , Schirmacher, Peter (VerfasserIn) , Hartmann, Dieter (VerfasserIn) , Cichy, Joanna (VerfasserIn) , Gavrilova, Olga (VerfasserIn) , Schreiber, Stefan (VerfasserIn) , Jostock, Thomas (VerfasserIn) , Matthews, Vance (VerfasserIn) , Häsler, Robert (VerfasserIn) , Becker, Christoph (VerfasserIn) , Neurath, Markus F. (VerfasserIn) , Reiss, Karina (VerfasserIn) , Saftig, Paul (VerfasserIn) , Scheller, Jürgen (VerfasserIn) , Rose-John, Stefan (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 5 July 2010
In: Journal of experimental medicine
Year: 2010, Jahrgang: 207, Heft: 8, Pages: 1617-1624
ISSN:1540-9538
DOI:10.1084/jem.20092366
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1084/jem.20092366
Volltext
Verfasserangaben:Athena Chalaris, Nina Adam, Christian Sina, Philip Rosenstiel, Judith Lehmann-Koch, Peter Schirmacher, Dieter Hartmann, Joanna Cichy, Olga Gavrilova, Stefan Schreiber, Thomas Jostock, Vance Matthews, Robert Häsler, Christoph Becker, Markus F. Neurath, Karina Reiss, Paul Saftig, Jürgen Scheller, and Stefan Rose-John
Beschreibung
Zusammenfassung:The protease a disintegrin and metalloprotease (ADAM) 17 cleaves tumor necrosis factor (TNF), L-selectin, and epidermal growth factor receptor (EGF-R) ligands from the plasma membrane. ADAM17 is expressed in most tissues and is up-regulated during inflammation and cancer. ADAM17-deficient mice are not viable. Conditional ADAM17 knockout models demonstrated proinflammatory activities of ADAM17 in septic shock via shedding of TNF. We used a novel gene targeting strategy to generate mice with dramatically reduced ADAM17 levels in all tissues. The resulting mice called ADAM17(ex/ex) were viable, showed compromised shedding of ADAM17 substrates from the cell surface, and developed eye, heart, and skin defects as a consequence of impaired EGF-R signaling caused by failure of shedding of EGF-R ligands. Unexpectedly, although the intestine of unchallenged homozygous ADAM17(ex/ex) mice was normal, ADAM17(ex/ex) mice showed substantially increased susceptibility to inflammation in dextran sulfate sodium colitis. This was a result of impaired shedding of EGF-R ligands resulting in failure to phosphorylate STAT3 via the EGF-R and, consequently, in defective regeneration of epithelial cells and breakdown of the intestinal barrier. Besides regulating the systemic availability of the proinflammatory cytokine TNF, our results demonstrate that ADAM17 is needed for vital regenerative activities during the immune response. Thus, our mouse model will help investigate ADAM17 as a potential drug target.
Beschreibung:Gesehen am 31.01.2023
Beschreibung:Online Resource
ISSN:1540-9538
DOI:10.1084/jem.20092366

Ähnliche Einträge