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Related Concept Videos

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.
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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
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Antigen Presenting Cells01:22

Antigen Presenting Cells

The immune system is a complex network of cells and molecules that protects the body from foreign invaders. T cells, a type of white blood cell, play a crucial role in this process. They recognize and attack foreign substances, such as pathogens, that enter the body.
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Immunity is a crucial biological concept about our body's inherent capacity to prevent infections and diseases. A complex network of cells and tissues collectively known as the immune system facilitates this natural defense mechanism. The immune system plays an integral role in maintaining our health and well-being, shielding us from potential health threats.
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Updated: Jun 17, 2026

Detection of Fluorescent Nanoparticle Interactions with Primary Immune Cell Subpopulations by Flow Cytometry
07:31

Detection of Fluorescent Nanoparticle Interactions with Primary Immune Cell Subpopulations by Flow Cytometry

Published on: March 28, 2014

Nanoparticles and the immune system.

Banu S Zolnik1, Africa González-Fernández, Nakissa Sadrieh

  • 1Center for Drug Evaluation and Research, Office of Pharmaceutical Science, Food and Drug Administration, Silver Spring, Maryland 20993, USA.

Endocrinology
|December 18, 2009
PubMed
Summary
This summary is machine-generated.

Nanoparticles offer medical benefits but raise toxicity concerns. This review explores how nanoparticle properties modulate immune responses, aiming for beneficial immunomodulation and avoiding toxicity.

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Screening Bioactive Nanoparticles in Phagocytic Immune Cells for Inhibitors of Toll-like Receptor Signaling
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Last Updated: Jun 17, 2026

Detection of Fluorescent Nanoparticle Interactions with Primary Immune Cell Subpopulations by Flow Cytometry
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Whole-animal Imaging and Flow Cytometric Techniques for Analysis of Antigen-specific CD8+ T Cell Responses after Nanoparticle Vaccination
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Screening Bioactive Nanoparticles in Phagocytic Immune Cells for Inhibitors of Toll-like Receptor Signaling
09:51

Screening Bioactive Nanoparticles in Phagocytic Immune Cells for Inhibitors of Toll-like Receptor Signaling

Published on: July 26, 2017

Area of Science:

  • Nanomedicine and immunology
  • Biomaterials science

Background:

  • Nanotechnology offers significant potential in medicine and biology.
  • Concerns exist regarding the toxicity of nanomaterials, particularly their interaction with the immune system.
  • Understanding nanoparticle-immune system interactions is crucial for safe application.

Purpose of the Study:

  • To review nanoparticle-mediated immunostimulation and immunosuppression.
  • To explore theories on how physicochemical properties influence immune cell interactions.
  • To guide the development of nanoparticles for desired immunomodulation and reduced toxicity.

Main Methods:

  • Literature review of reported observations on nanoparticle-immune system interactions.
  • Analysis of theories linking particle properties to immune responses.
  • Focus on immunomodulation and immunotoxicity.

Main Results:

  • Nanoparticles can be engineered to evade or modulate immune responses.
  • Physicochemical properties significantly influence nanoparticle interactions with immune cells.
  • Evidence suggests potential for both immunostimulatory and immunosuppressive effects.

Conclusions:

  • Tailoring nanoparticle properties can achieve targeted immunomodulation.
  • Further research is needed to fully understand and control nanoparticle-immunotoxicity.
  • Safe and effective nanomedical applications depend on managing immune interactions.