Casas, A.I.* ; Kleikers, P.W.M.* ; Geuss, E.* ; Langhauser, F.* ; Adler, T. ; Busch, D.H.* ; Gailus-Durner, V. ; Hrabě de Angelis, M. ; Egea, J.* ; Lopez, M.G.* ; Kleinschnitz, C.* ; Schmidt, H.H.H.W.*
Calcium-dependent blood-brain barrier breakdown by NOX5 limits postreperfusion benefit in stroke.
J. Clin. Invest. 129, 1772-1778 (2019)
lschemic stroke is a predominant cause of disability worldwide, with thrombolytic or mechanical removal of the occlusion being the only therapeutic option. Reperfusion bears the risk of an acute deleterious calcium-dependent breakdown of the blood-brain barrier. Its mechanism, however, is unknown. Here, we identified type 5 NADPH oxidase (NOX5), a calciumactivated, ROS-forming enzyme, as the missing link. Using a humanized knockin (KI) mouse model and in vitro organotypic cultures, we found that reoxygenation or calcium overload increased brain ROS levels in a NOX5-dependent manner. In vivo, postischemic ROS formation, infarct volume, and functional outcomes were worsened in NOXS-KI mice. Of clinical and therapeutic relevance, in a human blood-barrier model, pharmacological NOX inhibition also prevented acute reoxygenationinduced leakage. Our data support further evaluation of poststroke recanalization in the presence of NOX inhibition for limiting stroke-induced damage.
Impact Factor
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Times Cited
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Calcium ; Hypoxia ; Neuroscience ; Pharmacology ; Therapeutics; Nadph Oxidase; Independent Predictor; Therapeutic Targets; Neuroprotection; Angiogenesis; Injury; Count
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2019
Prepublished im Jahr
HGF-Berichtsjahr
2019
ISSN (print) / ISBN
0021-9738
e-ISSN
1558-8238
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 129,
Heft: 4,
Seiten: 1772-1778
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
American Society of Clinical Investigation
Verlagsort
2015 Manchester Rd, Ann Arbor, Mi 48104 Usa
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30201 - Metabolic Health
Forschungsfeld(er)
Genetics and Epidemiology
PSP-Element(e)
G-500600-001
Förderungen
Copyright
Erfassungsdatum
2019-03-25