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Related Concept Videos

T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

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...
Special Features of Adaptive Immunity01:20

Special Features of Adaptive Immunity

The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
Cytotoxic T Cells-mediated Immune Response01:27

Cytotoxic T Cells-mediated Immune Response

Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
T Cell Types and Functions01:24

T Cell Types and Functions

When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
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.
Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

Overview

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Related Experiment Video

Updated: May 24, 2026

Identification of Rare Antigen-Specific T Cells from Mouse Lungs with Peptide:Major Histocompatibility Complex Tetramers
09:15

Identification of Rare Antigen-Specific T Cells from Mouse Lungs with Peptide:Major Histocompatibility Complex Tetramers

Published on: July 19, 2024

T cells specific for lipid antigens.

Lucia Mori1, Gennaro De Libero

  • 1Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, Immunos, Biopolis, Singapore. lucia_mori@immunol.a-star.edu.sg

Immunologic Research
|March 20, 2012
PubMed
Summary

Lipid-specific T cells are crucial for fighting infections and autoimmune diseases. Understanding how these T cells recognize lipid antigens can lead to new treatments for various conditions.

Area of Science:

  • Immunology
  • Cellular Biology
  • Biochemistry

Background:

  • Lipid-specific T cells are key players in the human immune system.
  • They are involved in host defense against pathogens and in autoimmune diseases, atherosclerosis, and cancer surveillance.
  • Understanding their function is vital for developing new therapies.

Purpose of the Study:

  • To review recent findings on lipid-specific T cells.
  • To highlight their role in host protection, particularly in human studies.
  • To explore mechanisms of lipid antigen presentation and T-cell regulation.

Main Methods:

  • Review of recent scientific literature.
  • Analysis of data on lipid antigen recognition by T cells.
  • Investigation of CD1 antigen-presenting molecules and their interaction with lipid antigens.

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Ligand Nano-cluster Arrays in a Supported Lipid Bilayer
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Ligand Nano-cluster Arrays in a Supported Lipid Bilayer

Published on: April 23, 2017

Interview: Glycolipid Antigen Presentation by CD1d and the Therapeutic Potential of NKT cell Activation
18:08

Interview: Glycolipid Antigen Presentation by CD1d and the Therapeutic Potential of NKT cell Activation

Published on: December 31, 2007

Related Experiment Videos

Last Updated: May 24, 2026

Identification of Rare Antigen-Specific T Cells from Mouse Lungs with Peptide:Major Histocompatibility Complex Tetramers
09:15

Identification of Rare Antigen-Specific T Cells from Mouse Lungs with Peptide:Major Histocompatibility Complex Tetramers

Published on: July 19, 2024

Ligand Nano-cluster Arrays in a Supported Lipid Bilayer
10:34

Ligand Nano-cluster Arrays in a Supported Lipid Bilayer

Published on: April 23, 2017

Interview: Glycolipid Antigen Presentation by CD1d and the Therapeutic Potential of NKT cell Activation
18:08

Interview: Glycolipid Antigen Presentation by CD1d and the Therapeutic Potential of NKT cell Activation

Published on: December 31, 2007

Main Results:

  • Lipid antigen recognition is essential for host defense against various infections.
  • Lipid-specific T cells are implicated in autoimmune diseases and cancer.
  • Research has elucidated mechanisms of lipid antigen presentation and T-cell function.

Conclusions:

  • Lipid-specific immune responses play a critical role in host protection.
  • Further understanding of lipid-reactive T cells can inform novel therapeutic strategies.
  • Focus on human studies provides direct relevance for disease treatment.