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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.
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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.
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Study of Dendritic Cell Development by Short Hairpin RNA-Mediated Gene Knockdown in a Hematopoietic Stem and Progenitor Cell Line In vitro
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Molecular mechanisms for plasmacytoid dendritic cell function and development.

Tsuneyasu Kaisho1

  • 1Laboratory for Host Defense, RIKEN Research Center for Allergy and Immunology, Suehiro-cho 1-7-22, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan. tkaisho@rcai.riken.jp

Vaccine
|September 21, 2010
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Summary
This summary is machine-generated.

Plasmacytoid dendritic cells (pDCs) uniquely detect nucleic acid adjuvants via Toll-like receptors 7 and 9. This review explores recent advancements in understanding pDC function and development.

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In Vitro Generation of Murine Plasmacytoid Dendritic Cells from Common Lymphoid Progenitors using the AC-6 Feeder System

Published on: November 23, 2015

Area of Science:

  • Immunology
  • Cell Biology

Background:

  • Dendritic cells (DCs) are crucial immune cells activated by adjuvants in a subset-specific manner.
  • Plasmacytoid DCs (pDCs) represent a unique subset with specialized functions in sensing immune stimuli.

Purpose of the Study:

  • To review recent trends in the function and development of plasmacytoid dendritic cells (pDCs).
  • To highlight the specific mechanisms by which pDCs recognize nucleic acid immune adjuvants.

Main Methods:

  • Literature review of recent research on pDC function and development.
  • Focus on Toll-like receptor (TLR) signaling pathways in pDCs.

Main Results:

  • pDCs exclusively utilize TLR7 and TLR9 to sense nucleic acid immune adjuvants.
  • pDCs are characterized by their significant production of type I interferons upon activation.

Conclusions:

  • Recent research continues to elucidate the specialized role of pDCs in innate immunity.
  • Understanding pDC activation through TLR7/TLR9 is key to developing novel immunotherapies.