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Type: Journal article
Title: Upregulation of the neuronal Per-Arnt-Sim domain protein 4 (Npas4) in the rat corticolimbic system following focal cerebral ischemia
Author: Leong, W.
Klaric, T.
Lin, Y.
Lewis, M.
Koblar, S.
Citation: European Journal of Neuroscience, 2013; 37(11):1875-1884
Publisher: Blackwell Science Ltd
Issue Date: 2013
ISSN: 0953-816X
Statement of
Wai Khay Leong, Thomas S. Klaric, Yingxi Lin, Martin D. Lewis and Simon A. Koblar
Abstract: The neuronal Per-Arnt-Sim domain protein 4 (Npas4) is an important transcriptional regulator of synaptic plasticity and cognition. The present study characterises the in vivo neuroanatomical expression pattern of the Npas4 protein in a rat model of focal cerebral ischemia. Animals were subjected to unilateral middle cerebral artery occlusion for 2 h, after which the spatiotemporal and neuronal profiles of Npas4 protein expression were analysed by immunohistochemistry at different time points post-reperfusion. Focal cerebral ischemia induced an early, transient and robust upregulation of Npas4 in a brain region-dependent manner involving predominantly principal neurons. Interestingly, we observed a unique differential induction of Npas4 protein expression in corticolimbic regions of the rat brain that are critically linked to cognition and emotion. These findings suggest that stroke-induced Npas4 upregulation may be involved in a transcriptional regulatory program within the corticolimbic circuitry following an ischemic insult.
Keywords: corticolimbic; focal cerebral ischemia; middle cerebral artery occlusion; Npas4; rat brain
Rights: © 2013 Federation of European Neuroscience Societies and Blackwell Publishing Ltd.
RMID: 0020128889
DOI: 10.1111/ejn.12163
Appears in Collections:Molecular and Biomedical Science publications

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