Thymic Slice Preparation
Thymic Slice Preparation - Related Videos
10:10
Preparation and Applications of Organotypic Thymic Slice Cultures
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Cited by 8 •
2016
We describe the preparation of thymic slices that, in combination with flow cytometry, can be used to model positive and negative selection of developing T cells. Thymic slices can also be adapted for the in situ analysis of thymocyte migration, localization, and signaling via immunofluorescence and two-photon microscopy.
05:06
Three-Dimensional Thymic Culture System to Generate iPSC-Derived Thymic Emigrants
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2025
This video demonstrates a protocol for generating functional antigen-specific T cells from iPSC-derived immature T cells using a three-dimensional thymic culture system. Co-culturing the iPSC-derived immature T cells with endogenous lymphocyte-depleted mice fetal thymic lobes resulted in successful maturation of the T cells to form CD8αβ+ MHC class I+ iPSC-derived thymic emigrants (iTEs).
08:12
Thin Sectioning of Slice Preparations for Immunohistochemistry
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Cited by 7 •
2007
The present method allows reproducible cryostat sectioning of small, difficult-to-manage, tissue pieces, such as biopsies and brain slices. We utilize a simple aluminum freezing stage to facilitate handling of tissue and a standard cryostat to routinely produce 5-10 micron serial sections from 400 micron thick brain slices.
11:16
Preparation and Culture of Chicken Auditory Brainstem Slices
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Cited by 17 •
2011
The chicken auditory brainstem is comprised of nuclei responsible for binaural sound processing. A single coronal slice preparation maintains the entire circuitry while the cultured approach provides a unique preparation to study the development of neuronal structure and auditory function at the molecular, cellular and network levels.
10:29
Whole Cell Recording from an Organotypic Slice Preparation of Neocortex
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Cited by 6 •
2011
This is a protocol to prepare and maintain a neocortical slice preparation in organotypic culture for the purpose of making electrical recordings from pyramidal neurons.
FAQs
Maintaining the tissue framework keeps thymocytes and stromal cells in spatial contact rather than dispersing them into a suspension. This preserves cellular interactions that influence T-cell development, thymic selection, antigen presentation, and immune-cell migration. Consequently, observations from slices can reflect coordinated tissue behavior more closely than results from dissociated-cell preparations or conventional two-dimensional cultures.
Thymocytes provide the developing T-cell population, while stromal cells maintain the local thymic microenvironment in which developmental interactions occur. Keeping both populations together allows investigators to examine processes such as selection and migration in context. This arrangement is especially useful when the research question depends on communication between developing immune cells and the tissue framework supporting them.
The slices retain a physiologically relevant tissue environment that can be exposed ex vivo to pathogens or inflammatory signals. Investigators can then assess whether these challenges alter thymic function, cellular interactions, or immune-cell movement within the preserved tissue setting. This approach connects infection-related stimuli with changes in thymic organization and immune processes that may be difficult to evaluate in isolated cells.
Freshly isolated thymic tissue is embedded in a supportive matrix before sectioning. The matrix stabilizes the tissue sufficiently for thin sections to be produced while helping preserve the native arrangement of cells and structures. This step is important because the usefulness of the resulting culture depends on retaining viable thymocytes, stromal cells, and their three-dimensional relationships.
The workflow begins with freshly isolated thymic tissue, followed by embedding in a supportive matrix. The embedded tissue is then sectioned with a vibratome to generate thin slices, which are placed into ex vivo culture. These stages link tissue handling, mechanical sectioning, and subsequent maintenance of viable cellular interactions for experimental analysis.
Thymic slices can support investigations of T-cell development, thymic selection, antigen presentation, and immune-cell migration while preserving tissue context. In infection research, they provide a platform for examining how pathogens or inflammatory signals affect thymic function. Their value lies in connecting cellular responses with the organized microenvironment that is lost during complete tissue dissociation.