T Cell Modification
T Cell Modification - Related Videos
10:02
piggyBac Transposon System Modification of Primary Human T Cells
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Cited by 16 •
2012
We describe a method to genetically modify primary human T cells with a transgene using the non-viral piggyBac transposon system. T cells modified to using the piggyBac transposon system exhibit stable transgene expression.
02:32
Histone Modification
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2020
The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression. Acetylation The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...
05:55
Induction of Leptomeningeal Cells Modification Via Intracisternal Injection
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Cited by 1 •
2020
We describe an intracisternal injection that employs a needle bent at the tip that can be stabilized to the skull, thus eliminating the risk of damage to the underlying parenchyma. The approach can be used for genetic fate mapping and manipulations of leptomeningeal cells and for tracking cerebrospinal fluid movement.
01:32
Chromatin Modification in iPS Cells
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2023
Chromatin modification alters gene expression; therefore, scientists can add histone-modifying enzymes, histone variants, and chromatin remodeling complexes to somatic cells to aid reprogramming into pluripotent stem (iPS) cells. Compact chromatin makes reprogramming difficult. Enzymes, such as histone demethylases and acetyltransferases, are often added during reprogramming to loosen the chromatin, making the DNA more accessible to transcription factors. Molecules that inhibit histone...
05:16
Detecting Histone Modifications in Yeast Cells with Neurodegenerative Protein Overexpression
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2025
Source: Bennett, S. A., et al., Characterizing Histone Post-translational Modification Alterations in Yeast Neurodegenerative Proteinopathy Models. J. Vis. Exp. (2019).This video demonstrates the procedure of assessing histone modifications in yeast cells overexpressing neurodegenerative proteins. The steps include cell lysis, centrifugation, electrophoresis, membrane transfer, and antibody-based detection of modified histones.
FAQs
T Cell Modification can change several functional properties of a T lymphocyte. Altering gene expression may affect what the cell recognizes, how strongly it activates, how long it persists, or which effector functions it performs. These changes let researchers connect a defined cellular alteration with a measurable immune response in infection or therapy studies.
Viral vectors and genome-editing tools provide different ways to alter T cells. Researchers can use them to introduce genes, remove genetic elements, or regulate gene activity, depending on the desired cellular behavior. The resulting cells may express engineered receptors or show adjusted functional properties, allowing experiments to test how specific genetic changes shape immunity.
Antigen specificity helps modified cells focus their activity on a selected target, while persistence determines whether that activity can continue over time. Together, these properties influence the precision and durability of an immune response. Researchers therefore examine both characteristics when assessing modified cells for infection studies or adoptive cell therapy development.
Engineered receptors, including chimeric antigen receptors and modified T cell receptors, provide ways to direct T cell recognition. Introducing these receptors links genetic alteration with a desired recognition profile and subsequent cellular activity. Comparing receptor-based designs helps researchers investigate how targeted recognition contributes to immune responses against cancer or persistent infections.
A typical workflow begins by introducing, removing, or regulating selected genes in T lymphocytes with a viral vector or genome-editing tool. The cells are then activated and expanded to produce a functional population for study or treatment. Researchers can subsequently assess recognition, activation, persistence, effector activity, specificity, and unwanted immune reactions.
Evaluation focuses on whether the altered cells display the intended recognition, activation, persistence, and effector properties. Researchers also examine antigen specificity, durability, and unwanted immune reactions because strong activity alone does not establish a suitable response. These measurements help determine whether a modification clarifies cellular immunity or supports further therapeutic development.
In immunology and infection research, modified T cells help clarify how cellular immunity responds to infection. The same approach supports development of adoptive cell therapies for cancer and persistent infections by producing cells with selected receptor or functional characteristics. These applications connect mechanistic studies of T lymphocytes with efforts to create more targeted immune responses.