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Related Concept Videos

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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Cancer Stem Cells and Tumor Maintenance02:40

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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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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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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 Cell Migration through Invadopodia01:35

Cancer Cell Migration through Invadopodia

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Invadosome is a broad category of cell surface structures with proteolytic activity that  degrades the extracellular matrix (ECM). Invadosomes are present in normal cell types, including macrophages, endothelial cells, and neurons, as well as tumor cells. Although the macrophage podosomes and tumor cell invadopodia are classified as invadosomes, they have different structures, molecular pathways, and functions. Podosomes are short structures that last for a few minutes. However,...
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Tumor Progression02:07

Tumor Progression

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Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
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Related Experiment Video

Updated: May 29, 2025

Preparation of Tumor Antigen-loaded Mature Dendritic Cells for Immunotherapy
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Dendritic cell maturation in cancer.

Chang Yoon Moon1,2,3,4, Meriem Belabed1,2,3,4, Matthew D Park1,2,3,4

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Dendritic cells (DCs), crucial immune sentinels, orchestrate adaptive immunity and anti-tumor responses. This review explores how cancers disrupt DC maturation and discusses therapeutic strategies to enhance anti-tumor immunity.

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Last Updated: May 29, 2025

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Area of Science:

  • Immunology
  • Cancer Biology
  • Cellular Biology

Background:

  • Dendritic cells (DCs) are vital antigen-presenting cells that initiate adaptive immune responses.
  • DC maturation is key for anti-tumor immunity and immunotherapy efficacy.
  • Understanding DC maturation in non-inflammatory and cancer contexts is crucial.

Purpose of the Study:

  • To review mechanisms of DC maturation disruption by cancer.
  • To highlight therapeutic opportunities for modulating DC states.
  • To inform the development of DC-centric immunotherapies.

Main Methods:

  • Review of existing literature on DC biology and cancer immunology.
  • Analysis of single-cell technologies for characterizing DC states.
  • Discussion of molecular pathways involved in DC maturation.

Main Results:

  • Cancer exploits DC maturation pathways to evade immune surveillance.
  • Single-cell technologies reveal diverse mature DC states and their molecular programs.
  • Disruption of DC maturation by tumors is a significant challenge in cancer immunity.

Conclusions:

  • Modulating DC states presents a promising therapeutic avenue.
  • Targeting DC maturation can enhance anti-tumor immunity and immunotherapy effectiveness.
  • Further research into DC-cancer interactions is needed for novel treatment strategies.