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Journal of Cell Science, Vol 100, Issue 1 227-236, Copyright © 1991 by Company of Biologists

JOURNAL ARTICLES

Study of vitrified, unstained frozen tissue sections by cryoimmunoelectron microscopy

I Sabanay, T Arad, S Weiner and B Geiger
Department of Chemical Immunology, Weizmann Institute of Science, Rehovot, Israel.

We describe the development and application of a novel approach to high-resolution ultrastructural analysis of cells and tissues. It is based on the preparation of ultrathin frozen sections of fixed tissues, rinsing of the sections, followed by their embedding on the grid in a layer of vitrified ice, and direct observation with a cryoelectron microscope. Examination of smooth muscle, kidney and heart tissues showed that although no heavy metal staining was used, high-contrast images are obtained. Fine details of cytoplasmic filaments and organelles, membranes and membrane-associated structures, as well as connective-tissue elements are all visible. The new method is suitable for immunolabeling, including high resolution localization of specific molecules within the cytoplasm.


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© The Company of Biologists Ltd 1991