Immunohistological optimization of detection of bromodeoxyuridine- labeled cells in decalcified tissueWJ Hume and S Keat Department of Dental Surgery, Leeds University Dental School, United Kingdom. Mice were injected with a range of bromodeoxyuridine (BrdU) concentrations from 0.01 mg to 10 mg, and their jaws were fixed in buffered formalin or modified Carnoy. After EDTA or formic acid decalcification, a range of DNA denaturation schedules was assessed and immunohistological detection of BrdU-containing nuclei was performed using the Sera Lab anti-BrdU antibody MAS 250b. For Carnoy-fixed tissue, denaturation in 1 N HCl for 8 min at 60 degrees C was capable of adequately detecting an injected dose of 0.05 mg but not a dose of 0.01 mg BrdU, whereas pepsin/HCl treatment gave only weak staining after injection of 1 mg BrdU. In comparison, formalin fixation required pre-treatment with 0.2-0.4% pepsin/HCl at 37 degrees C for comparable staining intensity, but could still not adequately detect a dose of 0.1 mg BrdU. There was little detectable difference in staining between EDTA- and formic acid-decalcified tissues after injection of 10 mg BrdU.
Volume 38,
Issue 4,
pp. 509-513,
04/01/1990
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K. Fujiwara, H. Takatsu, and K. Tsukamoto Immunocytochemistry for Drugs Containing an Aliphatic Primary Amino Group in the Molecule, Anticancer Antibiotic Daunomycin as a Model J. Histochem. Cytochem., April 1, 2005; 53(4): 467 - 474. [Abstract] [Full Text] [PDF] |
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