Related Experiment Video
Updated: Apr 22, 2026

09:47
Generation of Human Alloantigen-specific T Cells from Peripheral Blood
Published on: November 21, 2014
12.4K
Allele-specific alien-driven diversity, immune responsiveness and MHC-restriction
1Departments of Pediatrics, Human Oncology and Genetics, University of Wisconsin, Madison, Wisconsin, USA.
Immunology Today
|October 8, 2014
Summary
This study proposes a new explanation for why certain major histocompatibility complex (MHC) molecules are better at presenting antigens to T cells. It suggests
Area of Science:
- Immunology
- Molecular Biology
Background:
- T cells recognize antigens presented by major histocompatibility complex (MHC) molecules.
- The effectiveness of specific MHC determinants in antigen presentation varies, potentially due to optimal physical association with the antigen.
Purpose of the Study:
- To propose an alternative explanation for allele-specific MHC restriction of T-cell responses.
- To explore the role of immune crossreactivity and 'alien' MHC antigens in this phenomenon.
Main Methods:
- Utilized concepts of immune crossreactivity.
- Applied the concept of 'alien' MHC antigens.
Main Results:
- Proposed an alternative model for allele-specific MHC restriction.
- Suggested that allele-specific, alien-driven diversity may influence the relationship between MHC and immune response genes.
Conclusions:
- The interaction between MHC determinants and antigens is complex and may involve factors beyond simple physical association.
- Immune crossreactivity and 'alien' MHC antigens offer a novel perspective on MHC restriction and its implications for immune response genes.
Related Concept Videos
Diversity of Antigen Receptors
2.1K
Antigen receptors are essential components of the immune system crucial in defending the body against foreign invaders. These receptors are present on the surface of B and T cells, enabling them to recognize antigens and mount an appropriate immune response.
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
2.1K
Special Features of Adaptive Immunity
3.5K
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,...
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,...
3.5K
Antigens Involved in Adaptive Immunity
1.7K
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...
Complete Antigens
Complete antigens possess both immunogenicity and...
1.7K
T Cell Activation and Clonal Selection
13.5K
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...
Naive T cells that have not yet encountered an antigen express two primary CD...
13.5K
B Cell Activation and Differentiation
14.2K
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...
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...
14.2K
Cell-mediated Immune Responses
63.9K
Overview
63.9K

