| Summary: | Charles University in Prague Faculty of Pharmacy in Hradec Králové Department of Biological and Medical Sciences Student: Lucie Kohoutová Supervisor: PharmDr. Jana Rathouská, Ph. D. Specialized supervisor: Dr. Maria Javier Ramirez Title of diploma thesis: JNK3 MAP-kinase localization in the brain of mice with Alzheimer's disease Background: The pathogenesis of Alzheimer's disease (AD) is incompletely understood. Discovery of c-Jun N-terminal kinases (JNKs), involved in regulation of gene expression, inflammation, cell proliferation and apoptosis, may contribute to better understanding of AD pathogenesis. JNK3 is a brain-specific JNK isoform involved in apoptosis of mammalian neurons. Precise localization of JNK3 in the brain still remains unclear. JNK3 silencing achieved by gene knockout had directly decreased beta amyloid (Aβ) levels in previous AD models in mice. We performed an immunohistological study to localize JNK3 gene in the mice brain in order to better focus future gene targeting therapy. Methods: A transgenic mice model of AD (Tg2576) has been used to study the expression of JNK3 by western blotting compared to the wild type. In the same brains localization of pJNK3 in astroglia (GFAP), microglia (Ox42), neurons (NeuN), senile plaques (Aβ) or pTau, using immunohistochemistry staining...
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