Autoradiography and Immunocytochemistry

Autoradiography and Immunocytochemistry

Practical Methods in Electron Microscopy

1st Edition - January 1, 1980

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  • Editor: Audrey. M. Glauert
  • eBook ISBN: 9781483293875

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Autoradiography and Immunocytochemistry sets out in detail the preparation of autoradiographs and methods of preparing and use of immunological staining reagents. This book begins with an introduction to the demand for autoradiography and immunocytochemistry and their most advantageous use, followed by a discussion on the immunocytochemistry at the electron microscopical (EM) level in relation to the preparation of labeled antibodies. Other topics include the general remarks on “staining” with antibodies; applying Fer-Ab conjugates to ultrathin sections; and controls in immunoferritin staining. The multistep antibody staining methods with unmodified proteins; control observations in staining experiments using lectins; and pattern analysis in EM immunocytochemistry are also covered. This text concludes with a description of the preparation of electron microscope autoradiographs, including the radioisotopes in EM autoradiography, preparation of radioactively-labeled tissues and cells, and methods of applying nuclear emulsions. This publication serves as a detailed laboratory guide for researchers and workers to successfully conduct electron microscope techniques.

Table of Contents

  • Author's Preface


    Chapter 1. Introduction

    1.1 The Demand for Autoradiography and Immunocytochemistry

    1.2 The Most Advantageous Use of the Techniques

    Chapter 2. Immunocytochemistry at the EM Level: Preparation of Labelled Antibodies

    2.1 Production and Purification of Antibodies

    2.1.1 Selection of Antigens

    2.1.2 Purified Specific Antibodies

    2.1.3 Partial Isolation of Immunoglobulins

    2.1.4 Isolation of Immunoglobulins by Affinity Chromatography Using Protein A

    2.2 Ferritin-Labelled Antibodies

    2.2.1 Purification of Commercial Ferritin

    2.2.2 Preparation of Ferritin-Immunoglobulin Conjugates

    2.2.3 Proof of Conjugation

    2.3 Purification of Ferritin-Antibody Conjugates

    2.3.1 Methods for Purifying Ferritin-Antibody Conjugates

    2.3.2 Assessment of the Purity of Conjugates

    2.3.3 Dual-Labelling with Fluorescein and Ferritin

    2.4 Enzyme-Labelled Antibodies

    2.4.1 Preparation of Enzyme-Labelled Antibodies

    2.4.2 Proof of Conjugation of Antibodies to Peroxidase

    2.5 Heavy Atom Labelling of Antibodies

    2.6 Immuno-Electron Microscopy Using Non-Conjugated Electron-Dense Markers

    2.6.1 Hybrid Antibodies

    2.6.2 Conditions of Storage of Enzyme-Antibody Conjugates, PAP Complex and Hybrid Antibodies

    2.7 Lectins as Staining Reagents for Immuno-Electron Microscopy

    2.7.1 Preparation of Ferritin-Conjugated Lectins

    Chapter 3. Immunocytochemistry at the EM Level: Staining Antigens with Electron-Dense Reagents

    3.1 Fixation of Tissues, Cells and Cell Fragments

    3.2 General Remarks on 'Staining' with Antibodies

    3.2.1 Direct and Indirect Staining

    3.3 Staining with Ferritin-Labelled Antibodies (Fer-Ab)

    3.3.1 Surface or Extracellular Antigens

    3.3.2 Staining Sub-Cellular Fractions

    3.3.3 Staining Cells After Digitonin Treatment

    3.3.4 Use of Fixed and Frozen Sections

    3.3.5 Applying Fer-Ab Conjugates to Ultrathin Sections

    3.4 Controls in Immunoferritin Staining

    3.5 Staining with Antibody Dually-Labelled with Fluorescein and Ferritin

    3.6 Enhancement of the Size and Electron Opacity of Ferritin by Heavy Metal Staining

    3.7 Methods of Applying Enzyme-Labelled Antibodies

    3.7.1 Staining Cell Surfaces or Extracellular Antigens

    3.7.2 Staining Sub-Cellular Fractions with Enzyme-Labelled Antibodies

    3.7.3 Fixation, Freezing and Staining of Intracellular Antigens in Solid Tissues

    3.7.4 Staining Thick Sections of Tissue Embedded in Polyethylene Glycol

    3.7.5 Staining Ultrathin Resin Sections with Enzyme-Labelled Antibodies

    3.7.6 Staining Ultrathin Frozen Sections with Enzyme-Labelled Antibodies

    3.8 Controls when Staining with Enzyme-Labelled Antibodies

    3.9 Multistep Antibody Staining Methods with Unmodified Proteins

    3.10 The Use of Lectins in Demonstrating Antigenic Determinants or Other Relevant Saccharides

    3.10.1 Staining Cell Surface Saccharide Residues Using Unconjugated Concanavalin A

    3.10.2 Control Observations in Staining Experiments Using Lectins

    3.11 Quantitative Studies Using Immuno-Electron Microscopy

    3.11.1 Pattern Analyssi in EM Immunocytochemisytr

    3.11.2 Resolution in EM Immunocytochemisytr

    Chapter 4. Preparation of Electron Microscope Autoradiographs

    4.1 Radioisotopes in EM Autoradiography

    4.1.1 The Likely Utility of Particular Radioisotopes for EM Autoradiography

    4.2 Radiochemicals

    4.2.1 Storage and Handling of Radiochemicals

    4.2.2 Checking the Purity of Radiochemicals

    4.3 Route of Administration of the Radiochemical

    4.4 Dose of Radiochemical

    4.4.1 Labelling of Tissues in Whole Animals

    4.4.2 Labelling Tissue or Cells in Vitro

    4.4.3 Determination of the Suitability of a Radiochemical Dose by LM autoradiography

    4.5 Toxicity of Radioisotopes

    4.6 Preparation of Radioactively-Labelled Tissues and Cells

    4.6.1 Fixation, Dehydration and Embedding of Tissues

    4.6.2 Preparation of LM Autoradiographs from Thick Resin Sections

    4.6.3 Ultramicrotomy

    4.7 Choice of Nuclear Emulsion

    4.8 Methods of Applying Nuclear Emulsions

    4.8.1 Darkroom Conditions

    4.8.2 The Loop Technique

    4.8.3 Flat Substrate Methods

    4.9 Exposure

    4.10 Development

    4.10.1 Choice of Developer

    4.10.2 Method of Developing

    4.10.3 Standard Commercial Chemical Developers for Use with Ilford L4 and Kodak NTE

    4.10.4 Fine Grain Development

    4.10.5 The pH of Developers

    4.11 Recovery of Specimens from their Supports

    4.11.1 Grids on Corks

    4.11.2 Specimens on Collodion-Coated Slides

    4.11.3 Specimens on Formvar-Carbon-Coatde Slides

    4.12 Post-Developmental Staining and Removal of Gelatin

    4.12.1 Staining without Gelatin Removal

    4.12.2 Staining After Removal of Gelatin

    4.13 Preparation of Micrographs from EM Autoradiographs

    4.14 Control Observations

    4.14.1 Determination and Significance of Background Count Levels

    4.14.2 Positive Chemography

    4.14.3 Negative Chemography

    4.14.4 Diffusion of Labelled Products

    4.14.5 The Detection of Fixative-Mediated Tissue Binding of Precursors and Other Low Molecular Weight Substances

    4.15 Efficiency in EM Autoradiography

    4.16 Resolution in EM Autoradiographs

    4.17 Applications of EM Autoradiography

    4.17.1 The Localization of Diffusible Substances by EM Autoradiography

    4.17.2 EM Autoradiographs of a Particle-Emitting Isotopes

    Appendix 1. Chemicals, Reagents and Methods Mostly to do with Immunocytochemistry

    Appendix 2. Materials and Methods for Autoradiography

    Appendix 3. List of Suppliers

    Subject Index

Product details

  • Language: English
  • Copyright: © North Holland 1980
  • Published: January 1, 1980
  • Imprint: North Holland
  • eBook ISBN: 9781483293875

About the Editor

Audrey. M. Glauert

Affiliations and Expertise

Clare Hall, University of Cambridge, UK

About the Author

M.A. Williams

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