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Related Concept Videos

NF-κB-dependent Signaling Pathway02:26

NF-κB-dependent Signaling Pathway

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The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
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T Cell Activation and Clonal Selection01:22

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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.
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T Cell Types and Functions01:24

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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.
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B Cell Activation and Differentiation01:24

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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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Cells of the Adaptive Immune Response01:23

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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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Cells of the Innate Immune Response01:28

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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.
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NF-κB-dependent Luciferase Activation and Quantification of Gene Expression in Salmonella Infected Tissue Culture Cells
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NFκB signaling in T cell memory.

Mark A Daniels1,2,3, Dezzarae Luera1,2, Emma Teixeiro1,2,3

  • 1Department of Molecular Microbiology and Immunology, School of Medicine, University of Missouri, Columbia, MO, United States.

Frontiers in Immunology
|March 13, 2023
PubMed
Summary
This summary is machine-generated.

Understanding how memory T cells are generated is key for immune therapies. New findings show NFκB signaling is crucial for creating and maintaining CD8 T cell memory after infection.

Keywords:
NFκB signalingT cell memoryenvironmental cuesimmunological memoryprotective immunity

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Area of Science:

  • Immunology
  • Cellular Biology
  • Signaling Pathways

Background:

  • Memory T cells are vital for adaptive immunity against pathogens and cancer.
  • Their generation and maintenance are critical for long-term host defense but not fully understood.
  • While transcriptional, epigenomic, and metabolic factors are studied, signaling pathway roles remain less clear.

Purpose of the Study:

  • To review recent findings on the role of NFκB signaling in CD8 T cell memory.
  • To highlight the unique contribution of NFκB to memory T cell generation and maintenance.
  • To identify remaining questions in the field of T cell memory regulation.

Main Methods:

  • Literature review of recent studies on T cell memory.
  • Focus on NFκB signaling pathways and their impact on CD8 T cells.
  • Synthesis of current knowledge regarding molecular mechanisms of memory T cell formation.

Main Results:

  • NFκB signaling plays an essential and unique role in CD8 T cell memory.
  • This pathway is implicated in both the generation and long-term maintenance of memory T cells.
  • Specific mechanisms by which NFκB influences T cell memory are increasingly being elucidated.

Conclusions:

  • NFκB signaling is a critical regulator of CD8 T cell memory.
  • Further research into NFκB pathways could lead to improved immune-based therapies.
  • Understanding these signaling circuits is essential for harnessing T cell memory for therapeutic benefit.