Bitte benutzen Sie diese Referenz, um auf diese Ressource zu verweisen: doi:10.22028/D291-36703
Titel: A murine model to study vasoreactivity and intravascular flow in lung isograft microvessels
VerfasserIn: Regelin, Nora
Heyder, Susanne
Laschke, Matthias W.
Hadizamani, Yalda
Borgmann, Michèle
Moehrlen, Ueli
Schramm, René
Bals, Robert
Menger, Michael D.
Hamacher, Jürg
Sprache: Englisch
Titel: Scientific Reports
Bandnummer: 9
Heft: 1
Verlag/Plattform: Springer Nature
Erscheinungsjahr: 2019
Freie Schlagwörter: Epithelial–mesenchymal transition
Experimental models of disease
DDC-Sachgruppe: 610 Medizin, Gesundheit
Dokumenttyp: Journalartikel / Zeitschriftenartikel
Abstract: Intravital microscopy of orthotopic lung tissue is technically demanding, especially for repeated investigations. Therefore, we have established a novel approach, which allows non-invasive repetitive in vivo microscopy of ectopic lung tissue in dorsal skinfold chambers. Syngeneic subpleural peripheral lung tissue and autologous endometrium (control) were transplanted onto the striated muscle within dorsal skinfold chambers of C57BL/6 mice. Grafts were analysed by intravital fuorescence microscopy over 14 days. Angiogenesis occurred in the grafts on day 3, as indicated by sinusoidal microvessels on the grafts’ edges with very slow blood fow, perifocal oedema, and haemorrhage. By day 10, lung transplants were completely revascularized, exhibited a dense network of microvessels with irregular diameters, chaotic angioarchitecture, and high blood fow. Compared to lung tissue, endometrial grafts contained a structured, glomerulus-like vessel architecture with lower blood fow. Despite missing ventilation, hypoxic vasoconstriction of the lung tissue arterioles occurred. In contrast, endometrium tissue arterioles dilated during hypoxia and constricted in hyperoxia. This demonstrates that ectopic lung grafts keep their ability for organ-specifc hypoxic vasoconstriction. These fndings indicate that our approach is suitable for repetitive in vivo pulmonary microcirculation analyses. The high blood fow and hypoxia-induced vasoconstriction in lung grafts suggest a physiological intrinsic vasoregulation independent of the recipient tissue.
DOI der Erstveröffentlichung: 10.1038/s41598-019-41590-7
URL der Erstveröffentlichung: https://www.nature.com/articles/s41598-019-41590-7
Link zu diesem Datensatz: urn:nbn:de:bsz:291--ds-367032
hdl:20.500.11880/33347
http://dx.doi.org/10.22028/D291-36703
ISSN: 2045-2322
Datum des Eintrags: 8-Jul-2022
Fakultät: M - Medizinische Fakultät
Fachrichtung: M - Chirurgie
M - Innere Medizin
Professur: M - Prof. Dr. Robert Bals
M - Prof. Dr. Michael D. Menger
Sammlung:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

Dateien zu diesem Datensatz:
Datei Beschreibung GrößeFormat 
s41598-019-41590-7.pdf1,87 MBAdobe PDFÖffnen/Anzeigen


Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons Creative Commons