Abstract
Various fixation and staining procedures for the demonstration of surface and cytoplasmic antigens have been described. An immunostaining procedure was sought that would allow the demonstration of these antigens, especially in small human tissue samples at the ultrastructural level. A modification and adaptation of the technique of Eldred, Zucker, Karten, and Yazula (J Histochem Cytochem 31:285, 1983) was applied on several varieties of human tissue, including liver, skin, and lymphoid tissue, using monoclonal and polyclonal antibodies in an indirect peroxidase procedure. In this way a reliable and generally applicable procedure was developed that satisfied the following demands: Use of a universal fixative that allows preservation of the antigenicity of various antigens; Adequate penetration of the tissue by the immunological reagents; Optimal preservation of subcellular structures; and Possibility to store the tissue samples for considerable periods of time.
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