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Immunofluorescence Microscopy

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A fluorescence microscope uses fluorescent chromophores called fluorochromes, which can absorb energy from a light source and then emit this energy as visible light. Fluorochromes include naturally fluorescent substances (such as chlorophylls) and fluorescent stains that are added to the specimen to create contrast. Dyes such as Texas red and FITC are examples of fluorochromes. Other examples include the nucleic acid dyes 4’,6’-diamidino-2-phenylindole (DAPI), and acridine orange.

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A Starter Guide to Immunofluorescence Testing in Dermatology.

Margaret Maria Cocks¹

¹Department of Dermatology, University of Utah School of Medicine, Salt Lake City.

|January 31, 2022

Summary

Immunodermatology laboratory tests like direct immunofluorescence (DIF) and indirect immunofluorescence (IIF) aid in diagnosing autoimmune blistering diseases. This guide offers practical tips for optimal test selection, biopsy, and transport to improve diagnostic accuracy.

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Multiplexed Fluorescent Immunohistochemical Staining, Imaging, and Analysis in Histological Samples of Lymphoma

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Published on: January 9, 2019

Area of Science:

Dermatology
Immunology
Laboratory Medicine

Background:

Autoimmune blistering diseases require accurate laboratory diagnostics.
Immunodermatology testing, including DIF, IIF, and ELISA, is crucial for diagnosis.
Understanding these tests is vital for appropriate clinical application.

Purpose of the Study:

To provide a primer on immunofluorescence testing in dermatology.
To overview available immunodermatology assays.
To offer practical guidance on specimen collection and transport.

Main Methods:

Review of immunodermatology laboratory techniques.
Discussion of direct immunofluorescence (DIF) principles.
Explanation of indirect immunofluorescence (IIF) and ELISA applications.

Main Results:

DIF, IIF, and ELISA are powerful diagnostic tools.
Optimal biopsy site selection impacts test sensitivity.
Proper specimen handling is essential for reliable results.

Conclusions:

Immunodermatology testing significantly aids in diagnosing autoimmune blistering diseases.
Knowledge of test methodologies and practical tips enhances diagnostic yield.
This primer facilitates appropriate utilization of immunofluorescence assays in clinical dermatology.