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Related Concept Videos

Introduction to Innate and Adaptive Immunity01:21

Introduction to Innate and Adaptive Immunity

The human immune system is a complex defense mechanism that protects the body from harmful pathogens and foreign substances. It comprises two crucial components: innate and adaptive immunity.
Innate immunity is the body's natural, nonspecific defense system that acts quickly to protect against pathogens. It incorporates physical barriers like skin and mucous membranes and cellular elements such as phagocytes and natural killer cells. This part of our immune system provides an immediate,...
Cytotoxic T Cells-mediated Immune Response01:27

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...
Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

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...
Special Features of Adaptive Immunity01:20

Special Features of Adaptive Immunity

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,...
Cells of the Innate Immune Response01:28

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...
Tumor Immunotherapy01:27

Tumor Immunotherapy

Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.

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Related Experiment Video

Updated: Jun 23, 2026

In Vivo Augmentation of Gut-Homing Regulatory T Cell Induction
08:02

In Vivo Augmentation of Gut-Homing Regulatory T Cell Induction

Published on: January 22, 2020

Targeting Innate Immunity for CV Benefit.

Kathryn J Moore1, Mason W Freeman

  • 1Lipid Metabolism Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114.

Drug Discovery Today. Therapeutic Strategies
|May 12, 2009
PubMed
Summary

Cholesterol buildup in arteries triggers innate immune responses. Pattern recognition receptors regulate these responses, offering potential therapeutic targets for atherosclerosis treatment and regression.

Area of Science:

  • Immunology
  • Cardiovascular Biology
  • Molecular Medicine

Background:

  • Vascular inflammation, central to atherosclerosis, is initiated by cholesterol accumulation in artery walls.
  • Modified cholesterol acts as a trigger for the innate immune system, a process previously thought to be solely for pathogen defense.
  • Pattern recognition receptors (PRRs) of the innate immune system precisely regulate inflammatory signaling, crucial for both innate and adaptive immunity.

Purpose of the Study:

  • To review the current understanding of innate immune receptors and their ligands in promoting atherosclerosis.
  • To highlight the role of PRRs in orchestrating host responses to modified endogenous ligands in sterile chronic inflammatory diseases.
  • To emphasize the therapeutic potential of targeting innate immune pathways for atherosclerosis intervention.

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Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production
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Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production

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Tailoring In Vivo Cytotoxicity Assays to Study Immunodominance in Tumor-specific CD8+ T Cell Responses
10:13

Tailoring In Vivo Cytotoxicity Assays to Study Immunodominance in Tumor-specific CD8+ T Cell Responses

Published on: May 6, 2019

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Last Updated: Jun 23, 2026

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08:02

In Vivo Augmentation of Gut-Homing Regulatory T Cell Induction

Published on: January 22, 2020

Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production
08:32

Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production

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Tailoring In Vivo Cytotoxicity Assays to Study Immunodominance in Tumor-specific CD8+ T Cell Responses
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Main Methods:

  • This is a review article, synthesizing existing research on innate immunity and atherosclerosis.
  • Literature search and analysis focusing on pattern recognition receptors, modified cholesterol ligands, and inflammatory pathways.
  • Examination of studies investigating monocyte recruitment, macrophage cholesterol metabolism, and pro-inflammatory signaling in atherosclerosis.

Main Results:

  • Innate immune receptors and their ligands play a critical role in the initiation and progression of vascular inflammation.
  • PRRs are involved in recognizing modified endogenous molecules, driving sterile inflammation in atherosclerosis.
  • Key processes regulated by these receptors include monocyte recruitment, cholesterol uptake by macrophages, and inflammatory signaling.

Conclusions:

  • Innate immune pathways are central to the pathogenesis of atherosclerosis.
  • Targeting pattern recognition receptors and their ligands presents a promising therapeutic strategy.
  • Interventions aimed at these innate immune targets could potentially slow atherosclerosis progression or promote regression.