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Related Concept Videos

Defense Against Bacterial Pathogens01:31

Defense Against Bacterial Pathogens

The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
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...
Antigens Involved in Adaptive Immunity01:26

Antigens Involved in Adaptive Immunity

An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and reactivity.
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...
Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

Overview
Immune Surveillance by NK Cells and Phagocytes01:25

Immune Surveillance by NK Cells and Phagocytes

Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...

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Updated: Jun 21, 2026

Isolation and Purification of Fungal β-Glucan as an Immunotherapy Strategy for Glioblastoma
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Beta-glucan recognition by the innate immune system.

Helen S Goodridge1, Andrea J Wolf, David M Underhill

  • 1Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.

Immunological Reviews
|July 15, 2009
PubMed
Summary

Beta-glucans are recognized by immune cells, influencing host defense and immune responses. This review highlights Dectin-1

Area of Science:

  • Immunology
  • Microbiology

Background:

  • Beta-glucans are polysaccharides found in fungi, bacteria, and plants.
  • The innate immune system recognizes beta-glucans through specific cell surface receptors.
  • This recognition is crucial for initiating host defense mechanisms.

Purpose of the Study:

  • To review current knowledge on beta-glucan recognition by the innate immune system.
  • To explore how beta-glucan recognition stimulates immune cell responses.
  • To emphasize the role of Dectin-1 in beta-glucan signaling and immune orchestration.

Main Methods:

  • Literature review of scientific articles on beta-glucan-immune interactions.
  • Analysis of studies detailing beta-glucan receptors and signaling pathways.
  • Focus on Dectin-1's function in cellular activation and adaptive immunity.

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Activation and Measurement of NLRP3 Inflammasome Activity Using IL-1β in Human Monocyte-derived Dendritic Cells
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Activation and Measurement of NLRP3 Inflammasome Activity Using IL-1β in Human Monocyte-derived Dendritic Cells

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Main Results:

  • Multiple immune cells, including neutrophils, macrophages, and dendritic cells, express beta-glucan receptors.
  • Beta-glucan recognition triggers intracellular signaling cascades.
  • Dectin-1 is a key receptor mediating beta-glucan recognition, intracellular signaling, and adaptive immune responses.

Conclusions:

  • Beta-glucan recognition by innate immune cells is a critical process for host defense.
  • Dectin-1 plays a central role in translating beta-glucan binding into cellular activation and immune modulation.
  • Understanding beta-glucan-Dectin-1 interactions offers potential for clinical applications in immune modulation.