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Related Concept Videos

Cancer Vaccines01:30

Cancer Vaccines

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Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
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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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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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Cancer Stem Cells and Tumor Maintenance02:40

Cancer Stem Cells and Tumor Maintenance

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Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
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Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

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Overview
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Adaptive Mechanisms in Cancer Cells02:53

Adaptive Mechanisms in Cancer Cells

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Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
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Related Experiment Video

Updated: Sep 28, 2025

Tractable In Vivo Reprogramming of Tumor Cells to Type 1 Conventional Dendritic Cell-like Cells
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Tractable In Vivo Reprogramming of Tumor Cells to Type 1 Conventional Dendritic Cell-like Cells

Published on: August 1, 2025

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Human dendritic cells in cancer.

Egle Kvedaraite1,2,3, Florent Ginhoux4,5,6,7

  • 1Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden.

Science Immunology
|April 1, 2022
PubMed
Summary

Dendritic cells (DCs) orchestrate immunity and are key in cancer. This review details human DC subsets, including conventional DCs (cDC1, cDC2, DC3), plasmacytoid DCs (pDCs), and tumor-associated mregDCs, highlighting their roles in antitumor and tolerogenic responses.

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Area of Science:

  • Immunology
  • Cell Biology
  • Oncology

Background:

  • Dendritic cells (DCs) are critical antigen-presenting cells that bridge innate and adaptive immunity.
  • Understanding human DC biology has advanced significantly over the past 50 years.
  • DCs play crucial roles in infections, autoimmune diseases, and cancer.

Purpose of the Study:

  • To review the dual roles of dendritic cells (DCs) in cancer immunity, encompassing both antitumor and tolerogenic responses.
  • To delineate the contributions of distinct human DC subsets to cancer immunology.
  • To discuss the recently identified lineage-unrestricted mature DCs enriched in immunoregulatory molecules (mregDCs) in human tumors.

Main Methods:

  • Literature review focusing on human studies.
  • Analysis of established and newly described DC subsets.
  • Synthesis of data on DC functions in the tumor microenvironment.

Main Results:

  • Human DCs exhibit both pro-tumor and anti-tumor functions.
  • Specific conventional DC (cDC) subsets (cDC1, cDC2, DC3) and plasmacytoid DCs (pDCs) have distinct roles.
  • A newly described subset, mregDCs, found across human tumors, possesses immunoregulatory properties.

Conclusions:

  • Human DC subsets, including cDC1, cDC2, DC3, pDCs, and mregDCs, have specialized functions in cancer.
  • Targeting specific DC subsets offers potential therapeutic strategies for cancer treatment.
  • Further research into mregDCs may reveal novel approaches for cancer immunotherapy.