Immunofluorescence Analysis
Immunofluorescence Analysis - Related Videos
10:56
Analysis of Cardiomyocyte Development using Immunofluorescence in Embryonic Mouse Heart
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Cited by 9 •
2015
Mutations that lead to congenital heart defects benefit from in vivo investigation of cardiac structure during development, but high-resolution structural studies in the mouse embryonic heart are technically challenging. Here we present a robust immunofluorescence and image analysis method to assess cardiomyocyte-specific structures in the developing mouse heart.
05:09
Microscopic Analysis of Synapses in Mouse Hippocampal Slices Using Immunofluorescence
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2025
Source: McLeod, F., et al. Evaluation of Synapse Density in Hippocampal Rodent Brain Slices. J. Vis. Exp. (2017).This video demonstrates a method for visualizing synaptic markers in hippocampal brain slices using confocal immunofluorescence analysis. The slices are immunostained with primary antibodies targeting presynaptic and postsynaptic markers, followed by fluorophore-conjugated secondary antibodies. The labeled markers are then visualized using confocal microscopy to evaluate the synaptic...
05:23
Immunofluorescence Microscopy for the Analysis of DNA Double-Strand Breaks
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2025
In this video, we describe the immunofluorescence microscopy technique to detect specific DNA damage response proteins localized at the sites of DNA double-strand breaks in human mononuclear cells. The proteins are recognized by specific primary antibodies, which in turn bind to fluorophore-tagged secondary antibodies that fluoresce during microscopic visualization, enabling visualization of the proteins as distinct fluorescent foci within the cell nuclei.
06:41
Removal of Drosophila Muscle Tissue from Larval Fillets for Immunofluorescence Analysis of Sensory Neurons and Epidermal Cells
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Cited by 13 •
2016
Studies of neuronal morphogenesis using Drosophila larval dendritic arborization (da) neurons benefit from in situ visualization of neuronal and epidermal proteins by immunofluorescence. We describe a procedure that improves immunofluorescence analysis of da neurons and surrounding epidermal cells by removing muscle tissue from the larval body wall.
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
Fixation and permeabilization prepare cells or tissues for antibody-based detection while maintaining the sample during microscopy. Fixation stabilizes the specimen, whereas permeabilization allows antibodies to reach relevant targets within cells. Together, these steps support more reliable localization of proteins and other antigens, particularly when the target lies inside the cell rather than at its surface.
The primary antibody provides target specificity by binding the protein or other antigen being studied. A fluorescent secondary antibody then recognizes the primary antibody and supplies the detectable fluorophore. This two-antibody arrangement links molecular recognition to fluorescence imaging, allowing researchers to visualize target distribution while using microscopy to assess where the signal appears in cells or tissues.
Signal intensity can help compare relative fluorescence between samples or cellular regions, while distribution shows where the detected antigen occurs. Colocalization examines whether fluorescence signals occupy overlapping locations, helping assess spatial relationships between targets. These readouts reveal cellular organization and protein expression, but interpretation depends on comparing the observed patterns rather than relying on fluorescence presence alone.
A typical workflow begins with fixing and permeabilizing the cell or tissue sample. The specimen is then treated with a primary antibody against the selected target, followed by a fluorescent secondary antibody that recognizes the primary antibody. Fluorescence microscopy provides the final readout, enabling comparison of signal intensity, distribution, and colocalization across samples or cellular regions.
The method is useful when researchers need to determine where specific proteins or other antigens occur within cells or tissues. It supports investigations of cell structure, signaling, developmental biology, disease mechanisms, and diagnostic biomarker localization. Because imaging reveals spatial patterns rather than only protein presence, it can connect molecular expression with cellular organization and tissue context.
Fluorescence microscopy can show whether a target is concentrated in particular cellular or tissue regions, broadly distributed, or spatially associated with another detected signal. Comparing these patterns helps researchers study protein expression and cellular organization. In biology, such outcomes provide visual evidence relevant to signaling processes, disease-related changes, development, and localization of diagnostic biomarkers.