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Immunohistochemical Expression of Alpha-1-antitrypsin in Human Gliomas Yukihide IKEYAMA 1,2 , Tetsuji ORITA 1 , Takafumi NISHIZAKI 1 , Hideo AOKI 1 , Haruhide ITO 1 1Department of Neurosurgery, Yamaguchi University School of Medicine Keyword: Glioma , Immunohistochemistry , Alpha-l—antitrypsin , Proteinase inhibitor pp.1047-1051
Published Date 1991/11/10
DOI https://doi.org/10.11477/mf.1436900351
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Abstract

The present paper describes the analysis of immuno-staining patterns of four antibodies, alpha-1-antitrypsin ( α - AT), glial fibrillary acid protein (GFAP), S - 100 protein (S - 100), and vimentin in 31 human gliomas. The gliomas were 10 astrocytomas, 10 anaplastic astrocytomas, and 11 glioblastoma multiforme tumors. The immunoreactivity for vimentin and α - AT that is one of the main proteinase inhibitors changed in pro-portion to the degree of histological malignancy. As α - AT was localized mainly in the cytoplasm of tumor cells and partially in extracellular spaces, it was thought to have been derived from tumor cells. Prepa-rations immunolabelled with anti-GFAP and anti-S-100 showed no increasing loss of immunoreactivity parallel with increasing malignancy.


Copyright © 1991, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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