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Related Concept Videos

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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Development of Immunocompetence01:22

Development of Immunocompetence

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The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
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Cell-mediated Immune Responses01:40

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Immunological Memory01:23

Immunological Memory

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Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature...
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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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Related Experiment Video

Updated: Jul 24, 2025

Preparation of Tumor Antigen-loaded Mature Dendritic Cells for Immunotherapy
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[Conditioning of the immune system-Already clinically usable?]

M Jakobs1, M Hadamitzky1, M Schedlowski1,2

  • 1Institut für Medizinische Psychologie und Verhaltensimmunbiologie, Center for Translational Neuro- and Behavioral Sciences (C-TNBS), Universitätsklinikum Essen, Universität Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Deutschland.

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The brain and immune system communicate, enabling learned immune responses through associative learning. This conditioning shows potential for reducing disease symptoms and drug side effects in clinical settings.

Keywords:
Classical conditioningLearned immune responsePlaceboSupportive treatment approachTaste-immune learning

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Area of Science:

  • Neuroimmunology
  • Psychoneuroimmunology
  • Behavioral Immunology

Context:

  • The brain and immune system share complex communication pathways.
  • Peripheral immune functions are modulated by associative learning and conditioning.
  • Learned immune responses can be established by pairing stimuli with immunomodulatory drugs.

Purpose:

  • To investigate the potential of learned immune responses for therapeutic applications.
  • To explore the use of associative learning protocols in animal disease models and human studies.
  • To reduce drug dosages and side effects while maintaining therapeutic efficacy.

Summary:

  • Associative learning pairs a neutral stimulus (odor/taste) with an unconditioned stimulus (drug), creating a conditioned stimulus that elicits immune reactions.
  • Conditioned immunopharmacological effects were demonstrated in animal models of lupus, contact allergy, and rheumatoid arthritis, reducing disease symptoms.
  • Preliminary human studies suggest learned immune responses can complement pharmacological treatments, potentially lowering drug doses and side effects.

Impact:

  • Demonstrates a novel approach to immune system modulation via learned responses.
  • Highlights the potential for reducing reliance on and side effects of immunomodulatory drugs.
  • Suggests a future role for behavioral interventions in managing immune-related diseases.