関連する実験動画
Updated: Aug 9, 2026

10:14
Retroviral Transduction of T-cell Receptors in Mouse T-cells
Published on: October 23, 2010
まとめ
CD2抗体でTリンパ球を刺激すると,増殖が起こりますが,細胞毒性にはなりません. ガンマインターフェロンまたはIL-2を追加すると,CD8+T細胞が細胞毒性になり,T細胞の分化研究を支援します.
科学分野:
- 免疫学 免疫学とは
- 細胞生物学 細胞生物学
- Tリンパ球の分化 Tリンパ球の分化
背景:
- エフェクター細胞毒性Tリンパ球の生成には,増殖と細胞毒性の発達が含まれます.
- T細胞の分化を促す信号を理解することは極めて重要です.
研究 の 目的:
- T細胞の分化段階の最小限の信号を定義する.
- CD4+とCD8+のT細胞がCD2刺激とリンパホキンの反応を調査する.
主な方法:
- リンパ球を抗CD2モノクローナル抗体で刺激する.
- 再結合ガンマインターフェロン (rIFN-ガンマ) と再結合IL-2 (rIL-2) の添加.
- CD4+およびCD8+T細胞における増殖と細胞毒性の分析.
主要な成果:
- 抗CD2刺激により,細胞毒性なしにCD4+およびCD8+T細胞の両方の増殖が誘発されました.
- rIFN-ガンマまたはrIL-2の添加は,CD8+T細胞の細胞毒性獲得につながったが,CD4+T細胞はそうではなかった.
- 細胞毒性のない,増殖するCD8+T細胞の中間段階を特定しました.
結論:
- CD2刺激と特定のリンパホキンは,連続してT細胞増殖と細胞毒性を誘発することができます.
- CD8+ T細胞は細胞毒性エフェクターに微分化するが,CD4+ T細胞はこれらの条件下では微分化しない.
- この発見は,Tリンパ球の成熟と分化経路を研究するためのモデルを提供します.
関連する概念動画
Cell-mediated Immune Responses
Overview
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...
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...
Cells of the Adaptive Immune Response
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...
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...
Naive T cells that have not yet encountered an antigen express two primary CD...
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...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
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...
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...

