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Related Concept Videos

Immunofluorescence Microscopy01:12

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11.1K
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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Super-resolution Fluorescence Microscopy01:37

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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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Optimization, Design and Avoiding Pitfalls in Manual Multiplex Fluorescent Immunohistochemistry
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Optimization, Design and Avoiding Pitfalls in Manual Multiplex Fluorescent Immunohistochemistry

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Optimizing direct immunofluorescence.

Ian D Odell1, Deborah Cook

  • 1Department of Dermatology, Yale University School of Medicine, 333 Cedar Street, Building LMP, Room 5040, New Haven, CT, 06520, USA, Ian.odell@yale.edu.

Methods in Molecular Biology (Clifton, N.J.)
|July 13, 2014
PubMed
Summary
This summary is machine-generated.

Immunofluorescence uses labeled antibodies to detect immune complexes in tissues. Proper specimen handling and understanding fluorophores are crucial for accurate autoimmune disease diagnosis and troubleshooting.

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Area of Science:

  • Immunology
  • Medical Laboratory Science

Background:

  • Immunofluorescence is a key diagnostic technique for detecting immune complexes in biological tissues.
  • Clinical laboratories commonly employ fluorophore-labeled antibodies that target conserved antibody domains for broad autoimmune complex detection.

Purpose of the Study:

  • To highlight the importance of understanding fluorophores and antibodies in immunofluorescence assays.
  • To emphasize the need for proper specimen handling to optimize diagnostic accuracy.

Main Methods:

  • Utilizes fluorophore-labeled antibodies to bind immune complexes within tissue samples.
  • Relies on the detection of fluorescent signals emitted by bound fluorophores.

Main Results:

  • The technique allows for the visualization and identification of specific immune deposits associated with autoimmune conditions.
  • Challenges in achieving high signal-to-background ratios are often linked to specimen handling and antibody quality.

Conclusions:

  • A foundational knowledge of fluorophore and antibody characteristics is essential for successful immunofluorescence testing.
  • Proper laboratory techniques are critical for maximizing the diagnostic yield and reliability of immunofluorescence assays in clinical settings.