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Related Experiment Videos

Attempts to quantitate immunocytochemistry at the electron microscope level.

J P Kraehenbuhl, L Racine, G W Griffiths

    The Histochemical Journal
    |May 1, 1980
    PubMed
    Summary

    High-resolution antibody labeling techniques allow precise localization of intracellular macromolecules. Quantitative analysis of particle counts and compartment volumes provides valuable data on cellular components.

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    Area of Science:

    • Cell Biology
    • Immunohistochemistry
    • Molecular Imaging

    Background:

    • High-resolution techniques are crucial for in situ localization of intracellular macromolecules.
    • Antibody labeling of thin tissue sections enables visualization of cellular components.

    Purpose of the Study:

    • To review methods for in situ intracellular macromolecule localization using antibody labeling.
    • To highlight quantitative approaches combining particle counts and morphometric analysis.
    • To present examples of these techniques in various cell types.

    Main Methods:

    • Antibody labeling of thin sections from hydrophilic matrix-embedded, ultracryotomy, or plastic-embedded tissues.
    • Use of particle-tagged immunological reagents for antigen visualization.

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  • Quantitative detection systems including ferritin-conjugated antibodies, biotin-avidin-ferritin, and gold-protein A conjugates.
  • Morphometric analysis of compartment volumes combined with particle counts.

    • Main Results:

    • Demonstrated successful localization of secretory proteins, opsin, membrane proteins, and contractile proteins.
    • Quantitative data from pancreatic exocrine cells were obtained using morphometric analysis.
    • Comparison of morphometric data with biochemical assessments in bovine and rat pancreatic exocrine cells.

    Conclusions:

    • Antibody labeling techniques provide high-resolution in situ localization of intracellular macromolecules.
    • Quantitative analysis using particle counts and morphometry offers valuable insights into cellular components.
    • These methods are applicable across diverse cell types and can be validated biochemically.