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Antigen presenting cells (APCs), such as dendritic cells, macrophages, and B cells, play a crucial role in the immune response by processing and presenting antigens to T cells. They present these antigens on their surface using Major Histocompatibility Complex (MHC) molecules, which are recognized by T cell receptors (TCRs). This interaction is essential for the activation and differentiation of T cells, enabling them to mount an effective immune response against pathogens. Additionally, APCs provide necessary co-stimulatory signals that further enhance T cell activation.
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What does not serve as an antigen-presenting cell?
Red blood cells do not serve as antigen-presenting cells. Antigen-presenting cells include dendritic cells, macrophages, and B cells, which play a crucial role in initiating immune responses by presenting antigens to T cells.
The main antigen-presenting cells in the body are?
The main antigen-presenting cells in the body are dendritic cells, macrophages, and B cells. These cells play a crucial role in initiating and modulating the immune response by capturing, processing, and presenting antigens to T cells.
What group does the phagocytic antigen-presenting cell belong to?
Phagocytic antigen-presenting cells belong to the group of immune cells known as leukocytes or white blood cells. These cells engulf and digest pathogens and then present pieces of them to other immune cells to activate an immune response. Common phagocytic antigen-presenting cells include macrophages, dendritic cells, and some types of white blood cells.
Is neutrophils an antigen presenting cell?
Neutrophils are primarily known as phagocytic cells that play a key role in the innate immune response, but they are not considered classical antigen-presenting cells (APCs) like dendritic cells, macrophages, or B cells. However, neutrophils can exhibit some antigen-presenting capabilities, especially during inflammatory responses, by processing and presenting antigens to T cells. This function is not their primary role, and their effectiveness as APCs is generally lower compared to specialized APCs.
Is T cell activation antigen specific?
Yes. The first signal that a T cell receives from an antigen presenting cell (dendritic cell) is MHC presenting an antigen (foreign peptide). This gives the T cell specificity to this antigen.
What does not serve as an antigen-presenting cell?
Red blood cells do not serve as antigen-presenting cells. Antigen-presenting cells include dendritic cells, macrophages, and B cells, which play a crucial role in initiating immune responses by presenting antigens to T cells.
Do antigen presenting cells have major histocompatibility complex class I molecules?
Yes, antigen presenting cells have major histocompatibility complex class I molecules.
The main antigen-presenting cells in the body are?
The main antigen-presenting cells in the body are dendritic cells, macrophages, and B cells. These cells play a crucial role in initiating and modulating the immune response by capturing, processing, and presenting antigens to T cells.
What cell is not and antigen presenting cell?
Red blood cells are not antigen presenting cells because they lack major histocompatibility complex (MHC) molecules, which are required for presenting antigens to T cells.
What has the author Jonathan M Austyn written?
Jonathan M. Austyn has written: 'Principles of cellular and molecular immunology' -- subject(s): Cellular Immunity, Immunity, Molecular biology, Molecular immunology 'Antigen-presenting cells' -- subject(s): Antigen presenting cells, Antigen-Presenting Cells, Immunology
What group does the phagocytic antigen-presenting cell belong to?
Phagocytic antigen-presenting cells belong to the group of immune cells known as leukocytes or white blood cells. These cells engulf and digest pathogens and then present pieces of them to other immune cells to activate an immune response. Common phagocytic antigen-presenting cells include macrophages, dendritic cells, and some types of white blood cells.
Which cell is known as antigen presenting cell?
Dendritic cells,macrophages, B cells
Which of the foefollowing not considered an antigen-presenting cell?
Antigen-presenting cells (APCs) primarily include dendritic cells, macrophages, and B cells, which play crucial roles in the immune response by processing and presenting antigens to T cells. Cells such as red blood cells (erythrocytes) are not considered APCs, as they lack the necessary machinery to present antigens to T cells. Therefore, any cell type that does not have the capability to process and present antigens would not be classified as an antigen-presenting cell.
Is neutrophils an antigen presenting cell?
Neutrophils are primarily known as phagocytic cells that play a key role in the innate immune response, but they are not considered classical antigen-presenting cells (APCs) like dendritic cells, macrophages, or B cells. However, neutrophils can exhibit some antigen-presenting capabilities, especially during inflammatory responses, by processing and presenting antigens to T cells. This function is not their primary role, and their effectiveness as APCs is generally lower compared to specialized APCs.
Is T cell activation antigen specific?
Yes. The first signal that a T cell receives from an antigen presenting cell (dendritic cell) is MHC presenting an antigen (foreign peptide). This gives the T cell specificity to this antigen.
Which hepatic cellsa re antigen-presenting cells that can stimulate an immune response?
The hepatic cells that serve as antigen-presenting cells are dendritic cells and Kupffer cells. Dendritic cells are particularly effective at capturing and presenting antigens to T cells, thereby stimulating an immune response. Kupffer cells, which are specialized macrophages in the liver, also play a crucial role in recognizing pathogens and presenting antigens to the immune system. Together, these cells contribute to the liver's immune surveillance and response functions.
Antigen presenting cell?
Antigen presenting cells (APCs) are immune cells that capture, process, and present antigens to T cells to initiate an immune response. Examples of APCs include dendritic cells, macrophages, and B cells. APCs play a crucial role in activating T cells and shaping the adaptive immune response.
