Journal
NEUROSCIENCE LETTERS
Volume 297, Issue 2, Pages 105-108Publisher
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/S0304-3940(00)01679-7
Keywords
neuron; astrocyte; Alzheimer's disease; fibrinolysis; serpin
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We investigated immunohistochemically the localization of type 1 plasminogen activator inhibitor (PAI-1) in rat and human brain tissues. In rat, neurons and astrocytes were stained positively for PAI-1 after colchicine treatment. In postmortem human brain, neurons were stained for PAI-1 but the number of positive neurons varied greatly from case to case. PAI-1 positive astrocytes occurred in the white matter lesions of some patients. In Alzheimer's disease, weak PAI-1 labeling was seen in association with senile plaques and ghost tangles. The present results support a notion that PAI-1 and its target proteases such as plasminogen activators and thrombin are involved in a variety of physiological and pathological processes in brain. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.
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