T Cell Memory Phenotypes
T Cell Memory Phenotypes - Related Videos
08:49
Transduction and Expansion of Primary T Cells in Nine Days with Maintenance of Central Memory Phenotype
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Cited by 5 •
2020
We outline a 9-day protocol for the transduction and expansion of rhesus macaque peripheral blood mononuclear cells which yields cells with excellent co-expression of the genes of interest in sufficient number for infusion studies of cell efficacy.
07:35
A Non-invasive Way to Isolate and Phenotype Cells from the Conjunctiva
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Cited by 5 •
2017
The exposed normal ocular surface consists of cornea and conjunctiva. Epithelial cells, goblet cells and immune cells are present in the conjunctiva. Here, a non-invasive, technique of impression cytology is described using an impression cytology device and flow cytometry to analyze immune cells in the conjunctiva.
10:53
Shape Memory Polymers for Active Cell Culture
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Cited by 25 •
2011
A method for developing cell culture substrates with the ability to change topography during culture is described. The method makes use of smart materials known as shape memory polymers that have the ability to memorize a permanent shape. This concept is adaptable to a wide range of materials and applications.
09:13
A Real-world What-Where-When Memory Test
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Cited by 3 •
2017
The Real-World What-Where-When memory test is a novel episodic memory test, in which participants need to recall which objects have been hidden in which locations on which of two distinct occasions. It is easy to run and is sensitive to normal cognitive aging.
14:23
Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells
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Cited by 29 •
2012
We describe a method for generating regulatory, memory and naïve T cells from a single human blood donor. Polarized Tregs can be then compared to other subsets in a variety of genetic and functional applications with genetic homogeneity, including a suppression assay also detailed here.
FAQs
The major memory subsets differ in trafficking, localization, self-renewal, cytokine production, and cytotoxic activity. Central memory cells, effector memory cells, tissue-resident memory cells, and stem-like memory cells therefore represent distinct functional states rather than interchangeable populations. Comparing these characteristics helps researchers determine whether an immune response emphasizes persistence, circulation, local tissue activity, or immediate effector function.
Trafficking and localization indicate where antigen-experienced T cells can persist and respond after an immune challenge. A population detected in peripheral blood may differ functionally from one located within a tumor or other tissue. Assessing these distributions provides context for interpreting immune surveillance, tumor infiltration, and the relationship between circulating cells and local anti-tumor activity.
Memory phenotypes balance properties that support long-term persistence with functions that enable immediate immune action. Self-renewal capacity reflects the ability to maintain a population, whereas cytokine production and cytotoxic activity describe aspects of its response function. Examining these features together helps distinguish cells suited to durable immune maintenance from those displaying stronger direct effector behavior.
Cancer researchers examine these phenotypes in both tumor samples and peripheral blood to characterize tumor-infiltrating lymphocytes and broader immune responses. The comparison can reveal whether relevant T cell populations are localized to the tumor, present systemically, or represented in different functional states across compartments. Such profiles also provide context for interpreting treatment outcomes.
Profiling memory states can help researchers evaluate how immune responses relate to treatment outcomes. Differences in persistence, localization, self-renewal, cytokine production, or cytotoxic activity may clarify the characteristics of responding immune populations. In cancer studies, this information supports interpretation of tumor-infiltrating lymphocytes and helps assess whether treatment is associated with durable anti-tumor immunity.
Memory phenotype information helps guide strategies intended to improve persistence, tumor recognition, and durable anti-tumor immunity. For checkpoint blockade, profiling can characterize immune populations associated with treatment responses. For adoptive T cell therapy, distinguishing functional states may help researchers evaluate or select cells according to their persistence and tumor-response characteristics, while retaining the relevant cancer-specific context.