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  • Title: Simultaneous in situ detection of IgE receptors and cytoplasmic granules in murine cutaneous mast cells.
    Author: Giorno R, Choi KL, Claman HN.
    Journal: J Immunol Methods; 1987 May 20; 99(2):163-6. PubMed ID: 2953820.
    Abstract:
    A method is described for the simultaneous in situ detection of surface receptors and cytoplasmic granules in mast cells of frozen sections of mouse skin. Surface IgE receptors are detected after saturation of the receptors with a murine monoclonal antibody of IgE isotype. The latter is subsequently detected by monospecific rabbit anti-mouse IgE (purified on protein A-Sepharose) followed by FITC-conjugated goat anti-rabbit IgG. Cytoplasmic granules are localized by staining with TRITC-avidin conjugate. Normal cutaneous mast cells show green surface fluorescence and red intracellular granules. The method is specific for mast cells; other cells with Fc receptors for IgE are not seen. This method should be useful in the study of situations in which mast cells may have become degranulated.
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