Volume 51, Issue 3 pp. 135-138
Free Access

Identification of monocyte chemoattractant protein-1 in senile plaques and reactive microglia of Alzheimer's disease

KOKO ISHIZUKA MD

Corresponding Author

KOKO ISHIZUKA MD

Department of Neuropsychiatry, Kumamoto University School of Medicine

Department of Neuropsychiatry, Kumamoto University School of Medicine, Honjo 1-1-1, Kumamoto 860, Japan.Search for more papers by this author
TAKEMI KIMURA MD

TAKEMI KIMURA MD

Department of Neuropsychiatry, Kumamoto University School of Medicine

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RURIKO IGATA-YI MD

RURIKO IGATA-YI MD

Department of Neuropsychiatry, Kumamoto University School of Medicine

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SHOICHI KATSURAGI MD

SHOICHI KATSURAGI MD

Department of Neuropsychiatry, Kumamoto University School of Medicine

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JUNICHI TAKAMATSU MD

JUNICHI TAKAMATSU MD

National Kikuchi Hospital, Kumamoto, Japan

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TAIHEI MIYAKAWA MD

TAIHEI MIYAKAWA MD

Department of Neuropsychiatry, Kumamoto University School of Medicine

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First published: 28 June 2008
Citations: 180

We thank Dr Motohiro Takeya for his editorial advice and Mr Toshiyuki Hisano for his excellent technical assistance.

Abstract

Abstract It has been shown that human monocytes express monocyte chemoattractant protein-1 (MCP-1), an inflammatry factor, in response to non-fibrillar β-amyloid protein. Reactive microglia and inflammatory factors were reported to be present in β-amyloid deposits (senile plaques) in Alzheimer's disease, suggesting the presence of MCP-1 in senile plaques. To address this issue, we examined MCP-1-immunoreactivity in senile plaques using a mouse monoclonal anti-MCP-1 antibody. Monocyte chemoattractant protein-1 was found immunohistochemically in mature senile plaques and reactive microglia but not in immature senile plaques of brain tissues from five patients with Alzheimer's disease. These findings suggest that MCP-1-related inflammatory events induced by reactive microglia contribute to the maturation of senile plaques.

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