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Related Concept Videos

Antigen Presenting Cells01:22

Antigen Presenting Cells

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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.
T cells require the help of antigen-presenting cells (APCs), which process foreign antigens into smaller fragments that can be recognized by T cells. These APCs are highly specialized cells that efficiently internalize antigens...
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Antigens Involved in Adaptive Immunity01:26

Antigens Involved in Adaptive Immunity

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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...
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Cell-mediated Immune Responses01:40

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Antigen Processing Pathways01:31

Antigen Processing Pathways

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MHC molecules are key players in the immune response, enabling T cells to recognize and respond to specific antigens. They are present on the surface of all nucleated cells in the body and are instrumental in presenting antigens to T cells and activating them. T cells recognize the MHC-antigen complex and initiate an immune response. MHC class I and MHC class II are two main types of MHC molecules, each associated with a distinct antigen processing pathway.
MHC Class I: Presenting Endogenous...
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B Cell Activation and Differentiation01:24

B Cell Activation and Differentiation

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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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T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

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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: Sep 11, 2025

Generation of Human Monocyte-derived Dendritic Cells from Whole Blood
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Generation of Human Monocyte-derived Dendritic Cells from Whole Blood

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Dendritic cells function beyond antigen presentation.

Eynav Klechevsky1

  • 1Department of Pathology and Immunology, Division of Immunobiology, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA.

Cancer Cell
|August 15, 2025
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Summary
This summary is machine-generated.

DNASE1L3-expressing dendritic cells (DCs) enhance anti-tumor immunity by degrading neutrophil extracellular traps. This action promotes CD8+ T cell infiltration and improves checkpoint blockade therapy effectiveness.

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Area of Science:

  • Immunology
  • Cancer Biology
  • Cellular Biology

Background:

  • Dendritic cells (DCs) are crucial immune regulators.
  • Neutrophil extracellular traps (NETs) can influence the tumor microenvironment.
  • DNASE1L3 is known for its role in immune regulation.

Purpose of the Study:

  • To investigate the role of DNASE1L3-expressing DCs in anti-tumor immunity.
  • To understand how DNASE1L3 impacts the tumor microenvironment.
  • To explore the therapeutic potential of targeting DNASE1L3 in cancer.

Main Methods:

  • Analysis of DNASE1L3 expression in dendritic cells.
  • Investigating the interaction between DCs, NETs, and tumor cells.
  • Assessing the impact on CD8+ T cell infiltration.
  • Evaluating the efficacy of checkpoint blockade therapy.

Main Results:

  • DNASE1L3-expressing DCs were identified as key enhancers of anti-tumor immunity.
  • Degradation of neutrophil extracellular traps by these DCs was observed.
  • Enhanced CD8+ T cell infiltration into tumors was promoted.
  • Improved efficacy of checkpoint blockade therapy was demonstrated.

Conclusions:

  • DNASE1L3-expressing DCs play a significant role in remodeling the tumor microenvironment.
  • Targeting DNASE1L3 offers a potential strategy to boost anti-tumor immunity.
  • This study expands the known functions of DNASE1L3 to physical remodeling of the tumor landscape.