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Related Concept Videos

Neuroplasticity01:01

Neuroplasticity

2.7K
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
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T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

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T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
Naive T cells that have not yet encountered an antigen express two primary CD...
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Cells of the Adaptive Immune Response01:23

Cells of the Adaptive Immune Response

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The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
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T Cell Types and Functions01:24

T Cell Types and Functions

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When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
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Neurogenesis and Regeneration of Nervous Tissue01:15

Neurogenesis and Regeneration of Nervous Tissue

2.2K
In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
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Immunological Memory01:23

Immunological Memory

18.1K
Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature...
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Related Experiment Video

Updated: Apr 18, 2026

Systemic Injection of Neural Stem/Progenitor Cells in Mice with Chronic EAE
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Systemic Injection of Neural Stem/Progenitor Cells in Mice with Chronic EAE

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5. T cell immunity and neuroplasticity.

Zhi Huang, Grace K Ha, John M Petitto

    Recent Research Developments in Neuroscience
    |January 20, 2015
    PubMed
    Summary

    T cells influence brain plasticity through direct entry and peripheral signals. Understanding T cell immunity

    Area of Science:

    • Neuroimmunology
    • Neuroplasticity
    • Cellular Neuroscience

    Background:

    • Neuroinflammation and T cell activity impact brain processes.
    • Neuroplasticity is crucial for cognitive and emotional functions.
    • Aging may alter brain plasticity due to T cell immunosenescence.

    Purpose of the Study:

    • To explore the role of T cells in neuroplasticity.
    • To investigate T cell influence on neuronal phenotype and atrophy.
    • To examine T cell impact on cognitive and emotional behaviors.

    Main Methods:

    • Review of existing research on T cell-brain interactions.
    • Analysis of injury-induced changes in neuronal phenotype.
    • Examination of neuroimmunological processes in neuroplasticity.

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    An Ex vivo Model of an Oligodendrocyte-directed T-Cell Attack in Acute Brain Slices
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    Main Results:

    • T cell immunity is associated with neuronal phenotype and motor neuron atrophy.
    • Neuroimmunological processes influence cognitive and emotional behaviors.
    • T cell immunosenescence may alter age-related brain plasticity.

    Conclusions:

    • Adaptive T cell immunity plays a significant role in brain neuroplasticity.
    • Understanding T cell neuroplasticity offers potential therapeutic targets.
    • This research has implications for neurodegenerative diseases and brain injury treatments.