関連する実験動画

Updated: Feb 27, 2026

Tailoring In Vivo Cytotoxicity Assays to Study Immunodominance in Tumor-specific CD8+ T Cell Responses
10:13

Tailoring In Vivo Cytotoxicity Assays to Study Immunodominance in Tumor-specific CD8+ T Cell Responses

Published on: May 6, 2019

9.6K

T細胞受容体は,T細胞殺戮に関与しているのでしょうか?

A Lanzavecchia

    Nature
    |February 5, 1986
    PubMed
    まとめ

    細胞毒性Tリンパ球 (CTL) は,T細胞受容体 (TCR) の占有が初期誘発には必要ですが,その後の殺戮には必要ありません. 一旦活性化されると,CTLは結合した細胞を排除し,誘発を致死的な打撃メカニズムから切り離すことができる.

    さらに関連する動画

    Using X-ray Crystallography, Biophysics, and Functional Assays to Determine the Mechanisms Governing T-cell Receptor Recognition of Cancer Antigens09:53

    Using X-ray Crystallography, Biophysics, and Functional Assays to Determine the Mechanisms Governing T-cell Receptor Recognition of Cancer Antigens

    Published on: February 6, 2017

    11.9K
    Antigen Specific In Vivo Killing Assay using CFSE Labeled Target Cells09:49

    Antigen Specific In Vivo Killing Assay using CFSE Labeled Target Cells

    Published on: November 9, 2010

    20.2K

    関連する概念動画

    Cytotoxic T Cells-mediated Immune Response01:27

    Cytotoxic T Cells-mediated Immune Response

    Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
    Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
    7.7K
    T Cell Activation and Clonal Selection01:22

    T Cell Activation and Clonal Selection

    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...
    16.7K
    T Cell Types and Functions01:24

    T Cell Types and Functions

    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...
    2.9K
    Cells of the Innate Immune Response01:28

    Cells of the Innate Immune Response

    The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
    Phagocytes
    Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
    9.8K
    B Cell Activation and Differentiation01:24

    B Cell Activation and Differentiation

    The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
    When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
    17.4K
    The Extrinsic Apoptotic Pathway01:17

    The Extrinsic Apoptotic Pathway

    The extrinsic apoptotic pathway is initiated when extracellular death-inducing signals, such as specific cytokines, activate the death receptors expressed on the cell surface. The immune cells involved in this pathway are natural killer cells (NK cells) and cytotoxic T-lymphocytes. NK cells are critical in innate immune response, while cytotoxic T-lymphocytes are associated with adaptive immune response. These cells recognize specific receptors expressed on the altered cells and activate...
    9.0K