Organoid Histology Processing
Organoid Histology Processing - Related Videos
03:55
Agarose Spin Down Assay: A Technique to Embed Organoids for Histological Analysis
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2023
In this video, we perform a spin-down assay to embed 3D prostate cancer organoids in agarose. These embedded organoids can be used for further histopathological analysis to study cancer growth and development.
03:43
Processing of Lentivirus-Transduced Mouse Intestinal Organoids for Immunohistochemical Analysis
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2026
Source: Van Lidth de Jeude, J. F., et al. A Protocol for Lentiviral Transduction and Downstream Analysis of Intestinal Organoids. J. Vis. Exp. (2015).This video demonstrates the processing of lentivirus-transduced mouse intestinal organoids for paraffin embedding, to enable their downstream analysis for assessing gene expression.
08:07
Culturing, Freezing, Processing, and Imaging of Entire Organoids and Spheroids While Still in a Hydrogel
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Cited by 1 •
2022
The present study describes methodologies for culturing, freezing, thawing, processing, staining, labeling, and examining entire spheroids and organoids under various microscopes, while they remain intact in a hydrogel within a multipurpose device.
05:33
Using Robotic Systems to Process and Embed Colonic Murine Samples for Histological Analyses
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Cited by 3 •
2019
Lack of standardization for murine tissue processing reduces the quality of murine histopathological analysis as compared to human specimens. Here, we present a protocol to perform histopathological examination of murine inflamed and uninflamed colonic tissues to show the feasibility of robotic systems routinely used for processing and embedding human samples.
08:55
Histological Staining of Neural Tissue
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2023
In order to examine the cellular, structural and molecular layout of tissues and organs, researchers use a method known as histological staining. In this technique, a tissue of interest is preserved using chemical fixatives and sectioned, or cut into very thin slices. A variety of staining techniques are then applied to provide contrast to the visually uniform sections. In the study of neuroanatomy, histological techniques are frequently applied to visualize and study nervous system tissue.
FAQs
Fixation preserves the organoid’s three-dimensional structure before it is supported and cut. This matters because architecture can be distorted during handling, making cellular organization or disease features harder to interpret. In cancer research, preserving the original arrangement helps microscopic assessment distinguish genuine morphology from changes introduced during preparation, strengthening comparisons among experimental conditions.
Embedding provides a stable support for organoids, while sectioning creates thin slices suitable for microscopy. Together, these steps make internal regions accessible for evaluating architecture and cellular composition rather than limiting observation to the outer surface. Consistent support and slicing are especially important when investigators compare morphology across organoids, treatment conditions, or genetically manipulated models.
Stains and antibody-based labeling answer different but complementary questions. Stains can reveal general tissue features, including nuclei, whereas antibody-based labels help visualize defined cell lineages, proliferation, and tumor-associated markers. Selecting the readout according to the biological question allows a processed organoid to provide either broad morphological context or more specific evidence about cellular identity and cancer-related behavior.
Standardization is essential because histology is used to compare organoids, not merely to produce images. Keeping processing consistent supports interpretation of differences in morphology, heterogeneity, invasion-related changes, or marker patterns as biological effects rather than variations between preparations. This is particularly relevant when samples represent distinct growth conditions, drug exposures, or genetic manipulations.
A practical workflow begins by fixing collected organoids, placing them in paraffin or another support medium, cutting thin sections, and then applying stains or antibody-based labels. Microscopic evaluation follows, focusing on architecture, cellular composition, disease features, or selected markers. Maintaining the same sequence across samples helps make downstream comparisons more interpretable.
Drug and genetic-manipulation studies benefit from histology because growth measurements alone do not show how tissue organization changes. Microscopic sections can reveal altered tumor morphology, heterogeneity, invasion-related features, or marker patterns after a treatment or genetic intervention. These observations add tissue-level evidence to organoid experiments and help connect an experimental perturbation with a structural or cellular outcome.
Such comparisons place organoid findings in a tissue-level disease context. Matching architecture, cellular composition, heterogeneity, or tumor-associated marker patterns can indicate which features of a patient tumor are represented in the model. The comparison is most informative when processing is consistent, because differences should reflect the specimens or conditions being studied rather than unequal preparation.