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Michalski, Dominik [VerfasserIn]; Reimann, Willi [VerfasserIn]; Spielvogel, Emma [VerfasserIn]; Mages, Bianca [VerfasserIn]; Biedermann, Bernd [VerfasserIn]; Barthel, Henryk [VerfasserIn]; Nitzsche, Björn [VerfasserIn]; Schob, Stefan [VerfasserIn]; Härtig, Wolfgang [VerfasserIn]

Regionally Altered Immunosignals of Surfactant Protein-G, Vascular and Non-Vascular Elements of the Neurovascular Unit after Experimental Focal Cerebral Ischemia in Mice, Rats, and Sheep

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  • Medientyp: E-Artikel
  • Titel: Regionally Altered Immunosignals of Surfactant Protein-G, Vascular and Non-Vascular Elements of the Neurovascular Unit after Experimental Focal Cerebral Ischemia in Mice, Rats, and Sheep
  • Beteiligte: Michalski, Dominik [VerfasserIn]; Reimann, Willi [VerfasserIn]; Spielvogel, Emma [VerfasserIn]; Mages, Bianca [VerfasserIn]; Biedermann, Bernd [VerfasserIn]; Barthel, Henryk [VerfasserIn]; Nitzsche, Björn [VerfasserIn]; Schob, Stefan [VerfasserIn]; Härtig, Wolfgang [VerfasserIn]
  • Erschienen: Basel : MDPI, [2024]
  • Sprache: Englisch
  • Schlagwörter: surfactant protein-G; vasculature; collagen IV; neurovascular unit; stroke; focal cerebral ischemia ; Medizin ; medicine
  • Entstehung:
  • Anmerkungen: Hinweis: Link zur Erstveröffentlichung URL: https://doi.org/10.3390/ijms23115875
  • Beschreibung: The surfactant protein-G (SP-G) has recently been discovered in the brain and linked to fluid balance regulations. Stroke is characterized by impaired vessel integrity, promoting water influx and edema formation. The neurovascular unit concept (NVU) has been generated to cover not only ischemic affections of neurons or vessels but also other regionally associated cells. This study provides the first spatio-temporal characterization of SP-G and NVU elements after experimental stroke. Immunofluorescence labeling was applied to explore SP-G, vascular and cellular markers in mice (4, 24, and 72 h of ischemia), rats (24 h of ischemia), and sheep (two weeks of ischemia). Extravasated albumin indicated vascular damage within ischemic areas. Quantifications revealed decreasing SP-G signals in the ischemia-affected neocortex and subcortex. Inverse immunosignals of SP-G and vascular elements existed throughout all models. Despite local associations between SP-G and the vasculature, a definite co-localization was not seen. Along with a decreased SP- G-immunoreactivity in ischemic areas, signals originating from neurons, glial elements, and the extracellular matrix exhibited morphological alterations or changed intensities. Collectively, this study revealed regional alterations of SP-G, vascular, and non-vascular NVU elements after ischemia, and may thus stimulate the discussion about the role of SP-G during stroke.
  • Zugangsstatus: Freier Zugang
  • Rechte-/Nutzungshinweise: Namensnennung (CC BY)