Comparison of LR White and Unicryl as embedding media for light and electron immunomicroscopy of chromaffin cellsG Goping, GA Kuijpers, R Vinet and HB Pollard Laboratory of Cell Biology and Genetics, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-0804, USA. LR White and Unicryl are members of the same family of acrylic embedding resins and are very suitable for "on grid" postembedding immunogold labeling. We studied the ultrastructure of LR White- and Unicryl-embedded cultured chromaffin cells and the immunolocalization of three chromaffin cell proteins, the enzymes dopamine-beta- hydroxylase (DbetaH) and tyrosine hydroxylase (TH), and the membrane fusion and Ca2+ channel protein synexin (annexin VII). We report here that Unicryl is preferable to LR White as an embedding medium for electron microscopy when osmium tetroxide fixation is omitted. The basis for this distinction is better ultrastructural preservation and improved immunodetection efficiency.
Volume 44,
Issue 3,
pp. 289-295,
03/01/1996
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E. Baumgart, I. Vanhorebeek, M. Grabenbauer, M. Borgers, P. E. Declercq, H. D. Fahimi, and M. Baes Mitochondrial Alterations Caused by Defective Peroxisomal Biogenesis in a Mouse Model for Zellweger Syndrome (PEX5 Knockout Mouse) Am. J. Pathol., October 1, 2001; 159(4): 1477 - 1494. [Abstract] [Full Text] |
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M. Mueller, K. Wacker, W. F. Hickey, E. B. Ringelstein, and R. Kiefer Co-Localization of Multiple Antigens and Specific DNA : A Novel Method Using Methyl Methacrylate-Embedded Semithin Serial Sections and Catalyzed Reporter Deposition Am. J. Pathol., December 1, 2000; 157(6): 1829 - 1838. [Abstract] [Full Text] [PDF] |
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G. Goping, K. A. Wood, Y. Sei, and H. B. Pollard Detection of Fragmented DNA in Apoptotic Cells Embedded in LR White: A Combined Histochemical (LM) and Ultrastructural (EM) Study J. Histochem. Cytochem., April 1, 1999; 47(4): 561 - 568. [Abstract] [Full Text] |
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