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Related Concept Videos

T Cell Types and Functions01:24

T Cell Types and Functions

1.1K
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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Inflammatory Response01:28

Inflammatory Response

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An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
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Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

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The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
824
B Cell Activation and Differentiation01:24

B Cell Activation and Differentiation

1.8K
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...
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Special Features of Adaptive Immunity01:20

Special Features of Adaptive Immunity

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The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
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T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

806
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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Related Experiment Video

Updated: Jul 18, 2025

Isolation and Th17 Differentiation of Naïve CD4 T Lymphocytes
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Isolation and Th17 Differentiation of Naïve CD4 T Lymphocytes

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IL-17: Balancing Protective Immunity and Pathogenesis.

Lu Sun1, Lufei Wang2, Bethany B Moore3

  • 1Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, USA.

Journal of Immunology Research
|August 21, 2023
PubMed
Summary
This summary is machine-generated.

Interleukin 17 (IL-17) is a key immune regulator with dual roles. This review details how IL-17 signaling protects against pathogens and maintains homeostasis, despite its links to autoimmune diseases.

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Mouse Naïve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets
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Mouse Naïve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets

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Related Experiment Videos

Last Updated: Jul 18, 2025

Isolation and Th17 Differentiation of Naïve CD4 T Lymphocytes
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Isolation and Th17 Differentiation of Naïve CD4 T Lymphocytes

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Author Spotlight: Achieving High-Purity In Vitro Differentiation of Th17 Cells Using Cytokine Concentration Modulation
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Mouse Naïve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets
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Area of Science:

  • Immunology
  • Molecular Biology
  • Cell Biology

Background:

  • Interleukin 17 (IL-17) is crucial for immune responses.
  • IL-17 exhibits both protective and destructive functions in immunity.
  • Dysregulated IL-17 is implicated in autoimmune diseases and infections.

Purpose of the Study:

  • To review the canonical and noncanonical signaling mechanisms of IL-17.
  • To highlight the protective roles of IL-17 in host defense and homeostasis.
  • To provide a comprehensive overview of IL-17's biological functions.

Main Methods:

  • Literature review of existing research on IL-17.
  • Analysis of canonical IL-17 signaling pathways.
  • Exploration of noncanonical IL-17 functions.

Main Results:

  • Canonical IL-17 signaling promotes neutrophil recruitment and antimicrobial peptide production.
  • IL-17 is essential for maintaining epithelial barrier integrity.
  • Noncanonical IL-17 pathways contribute to protective immunity against pathogens.

Conclusions:

  • IL-17 is a critical mediator of both innate and adaptive immunity.
  • Understanding IL-17's dual role is vital for therapeutic strategies.
  • IL-17 signaling is essential for host defense and physiological balance.