Immunofluorescence Characterization
Immunofluorescence Characterization - Related Videos
08:54
An Immunofluorescent Method for Characterization of Barrett’s Esophagus Cells
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2014
There is a discernible need for improved information on molecular drivers of Barrett’s Esophagus. Immunofluorescent staining is a useful technique for understanding the effects of cell signaling on cell morphology. We present a simple, effective protocol for the use of immunofluorescent staining to assess therapeutic treatment in Barrett’s Esophagus cells.
04:05
CTC Immunofluorescence Assay : A Technique to Characterize Circulating Tumor Cells
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2023
This video describes the Circulating Tumor Cells (CTC) Immunofluorescence assay, a technique to characterize the biomarkers on circulating tumor cells in non-small cell lung cancer patient samples. This assay could be used to monitor dynamic changes of the tumor and immune response, which may reflect the response to chemotherapy, radiation, and possible immunotherapy treatments.
04:34
An Immunofluorescence Assay to Characterize and Quantify Mammalian Stress Granules
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2025
This video demonstrates an assay for characterizing and quantifying mammalian stress granules, which consist of mRNAs, RNA-binding proteins (RBPs), and various other proteins.
02:38
Characterization of Small Bowel Neuroendocrine Tumor Spheroids Using Immunofluorescence
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2025
Source: Ear, P. H., et. al. Establishment and Characterization of Small Bowel Neuroendocrine Tumor Spheroids. J. Vis. Exp. (2019)This video demonstrates the immunofluorescence staining of small bowel neuroendocrine tumor spheroids. The spheroids are fixed, permeabilized, and blocked and are then incubated with primary and secondary antibodies. A dye is added to stain nuclei before mounting and visualizing them under a fluorescent microscope.
09:56
Immunofluorescence Microscopy: Immunofluorescence Staining of Paraffin-Embedded Tissue Sections
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2023
Source: Thomas Chaffee1, Thomas S. Griffith2,3,4, and Kathryn L. Schwertfeger1,3,4 1 Department of Lab Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455 2 Department of Urology, University of Minnesota, Minneapolis, MN 55455 3 Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455 4 Center for Immunology, University of Minnesota, Minneapolis, MN 55455 Pathologic analyses of tissue sections can be used to obtain a better understanding of normal tissue...
FAQs
Primary antibodies provide molecular recognition by binding the selected protein or other target. A fluorescently labeled secondary antibody can then bind the primary antibody, adding a detectable fluorescent signal and potentially amplifying it. This two-antibody arrangement separates target recognition from fluorescence detection, allowing the same detection strategy to reveal targets recognized by different primary antibodies.
Fixation preserves cellular or tissue structure during processing, helping maintain the spatial relationships that the analysis is intended to reveal. Permeabilization is introduced when antibodies need access to intracellular targets. Because it is used when needed rather than universally, the treatment depends on whether the selected target lies within the cell and must remain reachable by the antibodies.
Fluorescence microscopy shows where the antibody-bound target is situated within a cell or tissue. Consequently, the method can connect molecular specificity with spatial information, revealing protein distribution and subcellular localization instead of reporting only that a target exists. This location-based readout supports interpretation of cell organization and changes in cellular phenotype.
A typical workflow begins by fixing the sample to preserve its structure. If the target is intracellular, the sample is permeabilized so antibodies can reach it. The primary antibody is then applied to bind the target, followed when appropriate by a fluorescent secondary antibody. Finally, fluorescence microscopy is used to visualize and characterize the resulting signal.
Researchers choose this approach when they need both target specificity and spatial context. It can help characterize cell types, determine where proteins are distributed, and examine subcellular localization. The same combination is also useful for comparing cellular phenotypes, particularly when a study asks how molecular targets are arranged within cells or tissues.
In developmental biology, immunofluorescence characterization can reveal how selected proteins or cellular markers are positioned in developing cells and tissues. In disease-mechanism research, it can show changes in protein distribution or cellular phenotype. Tissue analysis benefits from preserved spatial structure, allowing molecular targets to be interpreted in their cellular and tissue context.