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• W2003126031 abstract "Our previous experiments suggest that treatment with Bcl-2 increases proliferation and differentiation of neuronal progenitors induced by ischemic injury and ameliorates neurological functional deficits after stroke. However, in addition to its traditional anti-apoptotic effect, little is known about the concrete molecular modulation mechanism. In this study, Bcl-2-expressing plasmids were injected into the lateral ventricle of rat brains immediately following a 30-min occlusion of the middle cerebral artery to determine the role of Bcl-2 in adult neurogenesis. Bcl-2 overexpression reduced ischemic infarct and astrogenesis, and enhanced ischemia-induced striatal neurogenesis. We further found that Bcl-2 increased β-catenin, a key mediator of canonical Wnt/β-catenin signaling pathway, and reduced bone morphogenetic proteins-4 (BMP-4) expression in the ipsilateral striatum following ischemia. Treatment of stroke with β-catenin siRNA (i.c.v.) showed that β-catenin siRNA antagonized Bcl-2 neuroprotection against ischemic brain injury. More interestingly, β-catenin siRNA simultaneously abolished Bcl-2-mediated reduction of BMP-4 expression and enhancement of neurogenesis in the ipsilateral striatum. This effect is independent of Noggin, the known BMP antagonist. These findings highlight a new regulatory mechanism that Bcl-2 elevates ischemia-induced striatal neurogenesis by down-regulating expression of BMP-4 via activation of the Wnt/β-catenin signaling pathway in adult rat brains." @default.
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• W2003126031 date "2012-07-01" @default.
• W2003126031 modified "2023-09-27" @default.
• W2003126031 title "Bcl-2 increases stroke-induced striatal neurogenesis in adult brains by inhibiting BMP-4 function via activation of β-catenin signaling" @default.
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• W2003126031 doi "https://doi.org/10.1016/j.neuint.2012.04.004" @default.
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