Autoreactive T Cells
Autoreactive T Cells - Related Videos
05:55
Quantification of Autoreactive Antibodies in Mice upon Experimental Autoimmune Encephalomyelitis
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Cited by 3 •
2023
Experimental autoimmune encephalomyelitis (EAE) is an animal model of multiple sclerosis (MS), which shares with the human disease a robust humoral autoimmune response. Here, we report a simple and flexible ELISA protocol to quantify autoantibodies in the serum of EAE immunized mice.
13:10
In Situ Detection of Autoreactive CD4 T Cells in Brain and Heart Using Major Histocompatibility Complex Class II Dextramers
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Cited by 11 •
2014
The protocol to detect self-reactive CD4 T cells in brain and heart by direct staining with major histocompatibility complex class II dextramers has been described in this report. For comprehensive analysis, a reliable method to enumerate the frequencies of antigen-specific CD4+ T cells in situ is also devised.
11:12
Interrogating Individual Autoreactive Germinal Centers by Photoactivation in a Mixed Chimeric Model of Autoimmunity
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Cited by 4 •
2019
This protocol describes the generation of mixed murine bone marrow chimeras with spontaneous autoimmune germinal centers, in which autoreactive lymphocytes carry a photoactivatable green fluorescent protein (PA-GFP) reporter. This provides the ability to link cellular location in tissues with downstream molecular and functional analyses.
05:14
Studying Interactions between Myeloid Cells and CAR T Cells In Vitro and In Vivo
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2025
Given the limited xenograft models available to study interactions between human CART and myeloid cells, we established in vitro and in vivo models to understand the impacts of human macrophages on CART cells. Findings can potentially be generalized to evaluate macrophage roles in the tumor microenvironment and test macrophage-targeted immunotherapies.
04:16
Imaging Transgenic Beta-Cells in an Immunodeficient Mouse Challenged with Diabetic Splenocytes
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2025
This video demonstrates an imaging-based method to visualize transplanted luciferase-expressing beta cells into a non-obese diabetic immunodeficient mouse. The introduction of splenocytes from a diabetic mouse leads to progressive beta cell destruction, visually confirmed by declining luminescence after substrate introduction.
FAQs
Central tolerance operates in the thymus, where developing T cells that strongly recognize self are removed or otherwise limited. This early checkpoint reduces the number of potentially harmful cells entering the circulation, but it does not eliminate every self-reactive T cell. The remaining cells therefore require additional controls after development to prevent inappropriate immune activation.
Peripheral tolerance restrains self-reactive cells that escape thymic control through several complementary mechanisms. Regulatory T cells can suppress immune activation, inhibitory signals can reduce T-cell responses, and insufficient co-stimulation can prevent effective activation. These safeguards are important because no single checkpoint provides complete protection, and together they help preserve tolerance while avoiding broad suppression of immunity.
Infections and tissue injury can disrupt the conditions that normally restrain self-reactive cells. Such disturbances may alter the balance between inhibitory controls and activating signals, allowing autoreactive T cells to respond when tolerance is weakened. This connection makes autoreactive T cells relevant to infection research, particularly when studying how immune responses may contribute to subsequent tissue-directed inflammation.
Central tolerance is an early developmental checkpoint in the thymus that removes or limits many self-reactive T cells before they circulate. Peripheral tolerance acts later on cells that remain outside the thymus, using regulatory T cells, inhibitory signals, and inadequate co-stimulation. The two systems therefore provide sequential layers of control rather than interchangeable mechanisms.
Their study helps connect failures in immune tolerance with diseases in which immune activity targets the body’s own tissues. Conditions such as type 1 diabetes, multiple sclerosis, and rheumatoid arthritis provide distinct disease contexts for examining these cells. Comparing such contexts can clarify how tolerance defects relate to disease development and guide more targeted research questions.
Investigating autoreactive T cells may help identify measurable indicators associated with disrupted immune tolerance or autoimmune disease. Biomarker research can use information about these cells to improve understanding of disease status and potentially distinguish relevant immune activity from broader immune changes. The overview supports this application as a research direction, without specifying a particular biomarker or testing procedure.
A central therapeutic aim is to restore immune tolerance without broadly suppressing protective immunity. Understanding how thymic and peripheral controls fail may help researchers design approaches that restrain harmful self-directed responses while preserving useful defenses against infection. This balance is especially important in immunology, where excessive suppression could interfere with the immune system’s protective functions.