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Non-neuronal neuropeptide Y and its receptors during acute rejection of rat pulmonary allografts
J. Schmitz, A. Zakrzewicz, S. Wilker, J. Kuncová, A. Hecker, V. Grau, W. Padberg, JPN. Holler,
Jazyk angličtina Země Nizozemsko
Typ dokumentu časopisecké články, práce podpořená grantem
- MeSH
- akutní nemoc MeSH
- alografty MeSH
- krysa rodu rattus MeSH
- leukocyty imunologie patologie MeSH
- neuropeptid Y imunologie MeSH
- plíce imunologie patologie MeSH
- potkani inbrední LEW MeSH
- receptory neuropeptidu Y imunologie MeSH
- receptory neuropeptidů imunologie MeSH
- receptory spřažené s G-proteiny imunologie MeSH
- regulace genové exprese imunologie MeSH
- rejekce štěpu imunologie patologie MeSH
- transplantace plic * MeSH
- zvířata MeSH
- Check Tag
- krysa rodu rattus MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
This study tested the hypothesis that neuropeptide Y (NPY) and NPY receptors 1 (Y1) and 2 (Y2) participate in lung allograft rejection. Inflammation in grafts may include interaction between blood leukocytes and graft endothelial cells and marked accumulation of intravascular blood leukocytes. Fewer leukocytes accumulate in lung than in kidney allografts. Lung transplantion was performed in the Dark Agouti to Lewis rat strain combination. Intravascular and intraalveolar leukocytes were isolated from the grafts, and we evaluated the mRNA expression of NPY, Y1, and Y2 by real-time RT-PCR as well as the peptide expression of NPY by radioimmunoassay and immunohistochemistry. NPY and Y1 were expressed by pulmonary intravascular and intraalveolar leukocytes. Y1 was up-regulated by pulmonary intravascular and intraalveolar leukocytes during allograft rejection while Y2 could not be detected. Higher NPY expression levels in intravascular leukocytes were observed in lung compared to kidney allografts, which were investigated previously. Our findings suggest that an increased leukocytic expression of NPY in lung compared to kidney allografts results in a reduced accumulation of leukocytes in allograft vessels.
Citace poskytuje Crossref.org
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- $a Schmitz, Jessica $u Laboratory of Experimental Surgery, Department of General and Thoracic Surgery, German Center for Lung Research, Justus-Liebig-University, Giessen, Germany. Electronic address: Schmitz.Jessica@mh-hannover.de.
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- $a Non-neuronal neuropeptide Y and its receptors during acute rejection of rat pulmonary allografts / $c J. Schmitz, A. Zakrzewicz, S. Wilker, J. Kuncová, A. Hecker, V. Grau, W. Padberg, JPN. Holler,
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- $a This study tested the hypothesis that neuropeptide Y (NPY) and NPY receptors 1 (Y1) and 2 (Y2) participate in lung allograft rejection. Inflammation in grafts may include interaction between blood leukocytes and graft endothelial cells and marked accumulation of intravascular blood leukocytes. Fewer leukocytes accumulate in lung than in kidney allografts. Lung transplantion was performed in the Dark Agouti to Lewis rat strain combination. Intravascular and intraalveolar leukocytes were isolated from the grafts, and we evaluated the mRNA expression of NPY, Y1, and Y2 by real-time RT-PCR as well as the peptide expression of NPY by radioimmunoassay and immunohistochemistry. NPY and Y1 were expressed by pulmonary intravascular and intraalveolar leukocytes. Y1 was up-regulated by pulmonary intravascular and intraalveolar leukocytes during allograft rejection while Y2 could not be detected. Higher NPY expression levels in intravascular leukocytes were observed in lung compared to kidney allografts, which were investigated previously. Our findings suggest that an increased leukocytic expression of NPY in lung compared to kidney allografts results in a reduced accumulation of leukocytes in allograft vessels.
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