Antigen Retrieval
Antigen Retrieval - Related Videos
10:48
SDS-PAGE/Immunoblot Detection of Aβ Multimers in Human Cortical Tissue Homogenates using Antigen-Epitope Retrieval
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Cited by 26 •
2010
We describe a technique for the preparation of clarified human cortical homogenates, protein separation by SDS-PAGE, antigen retrieval and immunoblotting with an antibody to the Aβ peptide. Using this protocol, we consistently detect monomeric and multimeric Aβ in cortical tissue from humans with Alzheimer's pathology.
09:38
Heat-Induced Antigen Retrieval: An Effective Method to Detect and Identify Progenitor Cell Types during Adult Hippocampal Neurogenesis
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Cited by 23 •
2013
During adult hippocampal neurogenesis, a distinct set of genetic markers are expressed when a quiescent neural stem cell sequentially progresses and develops into a functionally integrated neuron in the circuit. Using heat-induced antigen retrieval, progenitor cell types that are otherwise difficult to detect are identified with improved effectiveness.
08:42
Retrieval of Mouse Oocytes
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Cited by 13 •
2007
This protocol illustrates the technique for extracting oocytes or early-stage fertilized embryos from the oviduct of mice. The ability to identify the infindibulum and insert a blunt end needle into it is essential to correctly performing the procedure.
01:12
Retrieval
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2025
Retrieval is the process of getting information out of memory storage and back into conscious awareness. This ability is essential for daily tasks like brushing hair and teeth, driving to work, and performing job duties. Retrieval occurs in three ways: recall, recognition, and relearning. Recall involves accessing information without cues, such as during an essay test, where individuals must retrieve facts and concepts from memory unaided. Another example is remembering the name of a colleague...
05:52
Deployment and Retrieval of Mineral Samplers
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2026
Many important reactive minerals are formed during in situ groundwater remediation; however, conventional drill core-based methods often present challenges in collecting these minerals. This article offers techniques for utilizing the Min-Trap, an innovative passive sampling device, to effectively collect and measure reactive minerals from conventional monitoring wells.
FAQs
Heat-induced retrieval uses a heated buffer to disrupt fixation-related cross-links, whereas enzymatic retrieval relies on digestion to alter proteins surrounding the masked epitope. Their effects are not interchangeable: buffer conditions and heating may influence tissue integrity, while enzyme choice and digestion time can affect structural preservation. The appropriate approach depends on the target and specimen.
Buffer composition, temperature, treatment time, and enzyme selection are the main variables controlling retrieval performance. These factors determine how effectively antibody-accessible sites are restored while limiting damage to tissue architecture. Poorly matched conditions can produce weak signal, excessive background, or staining that becomes difficult to interpret, so retrieval requires optimization for the specimen and target.
Increasing treatment intensity may expose more antibody-accessible sites, but excessive heat or digestion can compromise the preserved section. The goal is therefore not maximal disruption; it is sufficient alteration of fixation-related masking while maintaining recognizable tissue structure. This balance directly affects whether immunohistochemical or immunofluorescence staining accurately represents antigen distribution.
Retrieval changes how readily antibodies reach their target sites, so optimized conditions can strengthen staining signals and improve the visibility of specific structures. However, signal intensity alone does not establish a successful result. Researchers must also consider specificity and tissue morphology, because an aggressive or poorly matched treatment can reduce interpretability even when staining appears stronger.
A basic workflow selects either heated-buffer treatment or enzymatic digestion, applies conditions suited to the specimen and target, and then evaluates the resulting section during immunohistochemical or immunofluorescence staining. Optimization typically varies buffer composition, temperature, treatment time, or enzyme choice. Researchers compare signal quality with tissue preservation to identify conditions that yield interpretable labeling.
The method is valuable when fixation has reduced antibody access in preserved specimens containing microbial antigens, immune-cell markers, or indicators of host responses. Improving epitope exposure can make these targets easier to visualize by immunohistochemistry or immunofluorescence. This supports analysis of relationships between infectious agents, immune cells, and tissue responses while retaining specimen architecture.