IMMUNOHISTOCHEMICAL LOCALIZATION OF ANTIGENS IN TISSUE EMBEDDED IN JB-4 BY BACKSCATTERED ELECTRON IMAGING UTILIZING COLLOIDAL GOLD-LABELED AND PEROXIDASE-LABELED ANTIBODIES (<Symposium II>Immuno-Histochemistry and Cytochemistry)
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概要
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Backscattered electron image (BEI) of colloidal gold-labeled antibody was compared with that of osmium which has chelated with the reaction product of peroxidase (HRP)-labeled autibody. Male rat hypophyses were fixed with 4% formaldehyde in 0.1 M phosphate buffer, pH 7.4 and embedded in JB-4. Tissue sections at 2 μm in thickness were placed on carbon coated glass slides and were reacted with rabbit anti-ACTH followed with either colloidal gold-labeled or HRP-labeled goat anti-rabbit IgG. Those reacted with HRP-labeled antibody were incubated with a solution containing diaminobenzidine (DAB) and H_20_2. The DAB reaction product was chelatcd then with O_sO_4→thiocarbohydrazide→O_sO_4. After washing and drying, the sections were observed with BEI mode of a JEOL T200 scanning eleetron microscope at 25 kV accelerating voltage . BEI from the colloidal gold-labeled antibody was visualized as very fine granules in the cytoplasm of ACTH cells at high magnification (>3,OOO×), but was diflicult to recognize at low magnification (<300×). On the other hand , BEI from the osmium chelated with the reaction product of HRP could be recognizcd as amorphous masses in the cells both at the low and high magnifications. From these observations, it was concluded that the concomitant use of colloidal gold-labeled antibody and HRP-labeled antibody should be useful for the immunohistochemical localiration of more than one antigen on the same section mounted on an ordinary glass slide at the electron microscopic level.
- 日本組織細胞化学会の論文
著者
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Izumi Shin-ichi
Department of Histology and Cell Biology, Nagasaki University School of Medicine
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NAKANE Paul
Department of Cell Biology, School of Medicine, Tokai University
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Nakane Paul
Department Of Anatomy Nagasaki University School Of Medicine
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Nakane Paul
Department Of Cell Biology School Of Medicine Tokai University
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Izumi Shin-ichi
Department Of Anatomy Nagasaki University School Of Medicine
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Izumi Shin-ichi
Department Of Cell Biology School Of Medicine Tokai University
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Nakane Paul
Department Of Anatomy (iii) Nagasaki University School Of Medicine
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