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Cyclin-dependent kinase 5 (Cdk5) associated with Lewy bodies in diffuse Lewy body disease
M Takahashi1, E Iseki, K Kosaka
1Department of Psychiatry, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Japan. megnobt@mb.infoweb.ne.jp
Abstract:
We investigated the cyclin-dependent kinase (Cdk) 5 distribution pattern in diffuse Lewy body disease brains using immunohistochemistry. Cdk5 immunoreactivity was detected in both brainstem-type Lewy bodies (LBs) and cortical LBs. The number of Cdk5-positive LBs was less than that of ubiquitin- or alpha-synuclein-positive LBs, and more than that of phosphorylated neurofilament-positive LBs. Immunoelectron microscopy revealed Cdk5-immunolabeled granulo-filamentous components in LBs and LB-related neurites. These data suggest that Cdk5 may be associated with LB formation.