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Involvement of Calpain in Neurovascular Unit Damage through Up-regulating PARP-NF-κB Signaling during Experimental Ischemic Stroke.
Yan, Wenhao; Wang, Chunyang; Zhao, Yumei; Jiang, Yingying; Sun, Ming.
Afiliación
  • Yan W; Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.
  • Wang C; Department of Neuropharmacology, Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, 119 South Fourth Ring West Road, Fengtai District, Beijing, 100070, China.
  • Zhao Y; Department of Neuropharmacology, Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, 119 South Fourth Ring West Road, Fengtai District, Beijing, 100070, China.
  • Jiang Y; Department of Neuropharmacology, Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, 119 South Fourth Ring West Road, Fengtai District, Beijing, 100070, China.
  • Sun M; Department of Neuropharmacology, Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, 119 South Fourth Ring West Road, Fengtai District, Beijing, 100070, China. sunmingbni99@163.com.
Mol Neurobiol ; 2024 Mar 12.
Article en En | MEDLINE | ID: mdl-38472651
ABSTRACT
Calpain and PARP-NF-κB signaling are reported to participate in the ischemic brain injury. In this study, it was investigated whether calpain was contributed to the neurovascular unit (NVU) damage through up-regulating PARP-NF-κB signaling during experimental ischemic stroke. Male Sprague-Dawley rats were suffered from 90 min of middle cerebral artery occlusion, followed by reperfusion. The NVU damage was evaluated by the permeability of blood-brain barrier (BBB), the degradation of proteins in extracellular matrix and tight junctions, and ultrastructural changes. The inflammatory response was determined by the expression of inflammatory genes driven by PARP-NF-κB signaling and the activities of myeloperoxidase (MPO). Treatment with MDL 28,170, a calpain inhibitor, improved neurological functions, reduced TUNEL staining index, lessened brain swelling, and decreased infarct volume in ischemic rats. Moreover, it reduced the BBB permeability, enhanced the levels of laminin, collagen IV and occludin, and attenuated the ultrastructural damage of NVU in penumbra and core after induction of ischemia. Meanwhile, it enhanced the levels of cytosolic IκBα, lessened the levels of nuclear PARP and NF-κB p65, reduced the levels of ICAM-1, TNF-α, IL-1ß, MMP-9, and MMP-2,and suppressed the activities of MPO in penumbra and core. These data showed that calpain inhibition suppressed PARP-NF-κB signaling-mediated inflammatory response, reduced NVU damage, and protected brain against ischemic stroke, suggesting the involvement of calpain in the NVU damage through up-regulating PARP-NF-κB signaling during brain ischemia.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Mol Neurobiol Asunto de la revista: BIOLOGIA MOLECULAR / NEUROLOGIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Mol Neurobiol Asunto de la revista: BIOLOGIA MOLECULAR / NEUROLOGIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos