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Vitronectin mitigates stroke-increased neurogenesis only in female mice and through FAK-regulated IL-6.
Abstract Vitronectin (VTN) is a blood protein produced mainly by the liver. We show that VTN leaks from the bloodstream into the injury site and neighboring subventricular zone (SVZ) following ischemic stroke (middle cerebral artery occlusion, MCAO) in adult mice. MCAO is known to increase neurogenesis after stroke. VTN inhibits this response in females, but not in males, as shown by ~70% more stroke-induced SVZ neurogenesis in female VTN-/- mice at 14 d. In female VTN-/- mice, stroke-induced expression of interleukin-6 (IL-6) at 24 h was reduced in the SVZ. The closely related leukemia inhibitory factor (LIF) o...
Source: Experimental Neurology - October 29, 2019 Category: Neurology Authors: Jia C, Keasey MP, Malone HM, Lovins C, Hagg T Tags: Exp Neurol Source Type: research

Neuregulin-1/PI3K signaling effects on oligodendrocyte proliferation, remyelination and behaviors deficit in a male mouse model of ischemic stroke
In this study, we investigated the effect of neuregulin-1 (NRG1) on demyelination and neurological function in an ischemic stroke model, and further explored its neuroprotective mechanisms. Adult male ICR mice underwent photothrombotic ischemia surgery and were injected with NRG1 beginning 30 min after ischemia. Cylinder and grid walking tests were performed to evaluate the forepaw function. In addition, the effect of NRG1 on neuronal damage/death (Cresyl violet, CV), neuronal nuclei (NeuN), nestin, doublecortin (DCX), myelin basic protein (MBP), non-phosphorylated neurofilaments (SMI-32), adenomatous polyposis coli (APC),...
Source: Experimental Neurology - January 23, 2023 Category: Neurology Authors: Mai Yin Cui Yan Qiong Fu Zhuo Li Li Yu Zheng Yi Yu Chan Zhang Yun Qi Zhang Bing Rui Gao Wu Yue Chen Yun-Lyul Lee Moo-Ho Won Min Liao Yong Jian Bai Hui Chen Source Type: research