Related Experiment Video
Updated: Aug 13, 2026
13:00
Intranasal Immunization and Milk Collection in Studies of Maternal Immunization in New Zealand White Rabbits (Oryctolagus cuniculus)
Published on: July 31, 2021
Adaptive Immunity in Marsupials
Cassandra L Jol1, Hayley J Stannard2, Julie M Old1,3,4
1School of Science, Western Sydney University, Penrith, New South Wales, Australia.
Summary
Marsupial adaptive immunity differs from other mammals, lacking IgD but having unique T cell receptors. Understanding these marsupial immune responses is crucial for disease management and conservation efforts.
Area of Science:
- Comparative immunology
- Mammalian evolution
- Veterinary science
Background:
- Marsupials and eutherian mammals diverged 125-160 million years ago.
- Both mammal groups exhibit complex adaptive immune responses, yet possess key differences.
- This review focuses on the adaptive immune system in marsupials.
Purpose of the Study:
- To analyze the current understanding of marsupial adaptive immunity.
- To highlight key differences between marsupial and eutherian immune systems.
- To review marsupial immune responses in the context of diseases and vaccine research.
Main Methods:
- Literature review of current research on marsupial immunology.
- Comparative analysis of marsupial and eutherian immune system components.
- Summary of known T cell and antibody functions in marsupials.
Main Results:
- Marsupial genomes lack Immunoglobulin D (IgD).
- Marsupials possess an additional T cell receptor.
- Key differences in adaptive immunity are identified compared to eutherian mammals.
Conclusions:
- Further research is essential to improve understanding of marsupial disease responses.
- Enhanced knowledge of marsupial immunity can aid in disease management and conservation.
- Vaccine research in marsupials is increasingly important for their health and survival.
Related Concept Videos
01:22Development of Immunocompetence
The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
01:20Special 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,...
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,...
01:23Cells of the Adaptive Immune Response
The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
01:21Introduction to Innate and Adaptive Immunity
The human immune system is a complex defense mechanism that protects the body from harmful pathogens and foreign substances. It comprises two crucial components: innate and adaptive immunity.
Innate immunity is the body's natural, nonspecific defense system that acts quickly to protect against pathogens. It incorporates physical barriers like skin and mucous membranes and cellular elements such as phagocytes and natural killer cells. This part of our immune system provides an immediate,...
Innate immunity is the body's natural, nonspecific defense system that acts quickly to protect against pathogens. It incorporates physical barriers like skin and mucous membranes and cellular elements such as phagocytes and natural killer cells. This part of our immune system provides an immediate,...
01:40Cell-mediated Immune Responses
Overview
01:23Immunological Memory
Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature is...
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature is...