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About 22 results
  • https://bio.libretexts.org/Courses/Folsom_Lake_College/BIOL_440%3A_General_Microbiology_(Panoutsopoulos)/06%3A_The_Immune_System_Nonspecific_and_Specific_Defenses/6.03%3A_Specific_Adaptive_Host_Defenses/6.3.02%3A_Antigens_Antigen_Presenting_Cells_and_Major_Histocompatibility_Complexes
    Major histocompatibility complex (MHC) molecules are expressed on the surface of healthy cells, identifying them as normal and “self” to natural killer (NK) cells. MHC molecules also play an important...Major histocompatibility complex (MHC) molecules are expressed on the surface of healthy cells, identifying them as normal and “self” to natural killer (NK) cells. MHC molecules also play an important role in the presentation of foreign antigens, which is a critical step in the activation of T cells and thus an important mechanism of the adaptive immune system.
  • https://bio.libretexts.org/Courses/Butte_College/BC%3A_BIOL_2_-_Introduction_to_Human_Biology_(Grewal)/Text/20%3A_Immune_System/20.2%3A_Introduction_to_the_Immune_System
    The immune system is a host defense system. It comprises many biological structures —ranging from individual white blood cells to entire organs — as well as many complex biological processes. The func...The immune system is a host defense system. It comprises many biological structures —ranging from individual white blood cells to entire organs — as well as many complex biological processes. The function of the immune system is to protect the host from pathogens and other causes of disease such as tumor cells. To function properly, the immune system must be able to detect a wide variety of pathogens.
  • https://bio.libretexts.org/Courses/Portland_Community_College/Cascade_Microbiology/12%3A_Specific_Adaptive_Host_Defenses/12.2%3A_Antigens_Antigen_Presenting_Cells_and_Major_Histocompatibility_Complexes
    The mechanism by which epitopes are selected for processing and presentation by an APC is complicated and not well understood; however, once the most antigenic, immunodominant epitopes have been proce...The mechanism by which epitopes are selected for processing and presentation by an APC is complicated and not well understood; however, once the most antigenic, immunodominant epitopes have been processed, they associate within the antigen-binding cleft of MHC II molecules and are translocated to the cell surface of the dendritic cell for presentation to T cells.
  • https://bio.libretexts.org/Courses/Mansfield_University_of_Pennsylvania/BSC_3271%3A_Microbiology_for_Health_Sciences_Sp21_(Kagle)/14%3A_Immunology/14.02%3A_Specific_Adaptive_Host_Defenses/14.2.02%3A_Antigens_Antigen_Presenting_Cells_and_Major_Histocompatibility_Complexes
    The mechanism by which epitopes are selected for processing and presentation by an APC is complicated and not well understood; however, once the most antigenic, immunodominant epitopes have been proce...The mechanism by which epitopes are selected for processing and presentation by an APC is complicated and not well understood; however, once the most antigenic, immunodominant epitopes have been processed, they associate within the antigen-binding cleft of MHC II molecules and are translocated to the cell surface of the dendritic cell for presentation to T cells.
  • https://bio.libretexts.org/Bookshelves/Human_Biology/Human_Biology_(Wakim_and_Grewal)/20%3A_Immune_System/20.2%3A_Introduction_to_the_Immune_System
    The immune system is a host defense system. It comprises many biological structures - ranging from individual white blood cells to entire organs - as well as many complex biological processes. The fun...The immune system is a host defense system. It comprises many biological structures - ranging from individual white blood cells to entire organs - as well as many complex biological processes. The function of the immune system is to protect the host from pathogens and other causes of disease such as tumor cells. To function properly, the immune system must be able to detect a wide variety of pathogens.
  • https://bio.libretexts.org/Workbench/Principles_of_the_Human_Body/18%3A_Immune_System/20.2%3A_Introduction_to_the_Immune_System
    The immune system is a host defense system. It comprises many biological structures - ranging from individual white blood cells to entire organs - as well as many complex biological processes. The fun...The immune system is a host defense system. It comprises many biological structures - ranging from individual white blood cells to entire organs - as well as many complex biological processes. The function of the immune system is to protect the host from pathogens and other causes of disease such as tumor cells. To function properly, the immune system must be able to detect a wide variety of pathogens.
  • https://bio.libretexts.org/Courses/Clinton_College/BIO_403%3A_Microbiology_(Neely)/06%3A_The_Immune_System_Nonspecific_and_Specific_Defenses/6.03%3A_Specific_Adaptive_Host_Defenses/6.3.02%3A_Antigens_Antigen_Presenting_Cells_and_Major_Histocompatibility_Complexes
    Major histocompatibility complex (MHC) molecules are expressed on the surface of healthy cells, identifying them as normal and “self” to natural killer (NK) cells. MHC molecules also play an important...Major histocompatibility complex (MHC) molecules are expressed on the surface of healthy cells, identifying them as normal and “self” to natural killer (NK) cells. MHC molecules also play an important role in the presentation of foreign antigens, which is a critical step in the activation of T cells and thus an important mechanism of the adaptive immune system.
  • https://bio.libretexts.org/Courses/Skyline_College/BIOL_130%3A_Human_Biology/13%3A_Immune_System/13.02%3A_Introduction_to_the_Immune_System
    The immune system is a host defense system. It comprises many biological structures - ranging from individual white blood cells to entire organs - as well as many complex biological processes. The fun...The immune system is a host defense system. It comprises many biological structures - ranging from individual white blood cells to entire organs - as well as many complex biological processes. The function of the immune system is to protect the host from pathogens and other causes of disease such as tumor cells. To function properly, the immune system must be able to detect a wide variety of pathogens.
  • https://bio.libretexts.org/Bookshelves/Microbiology/Microbiology_(Boundless)/11%3A_Immunology/11.11%3A_The_Major_Histocompatibility_Complex_(MHC)
  • https://bio.libretexts.org/Courses/Manchester_Community_College_(MCC)/BIOL_106%3A_Essentials_of_Anatomy_and_Physiology_(Anzalone)/10%3A_The_Lymphatic_and_Immune_Systems/10.02%3A_Introduction_to_the_Immune_System
    The immune system is a host defense system. It comprises many biological structures - ranging from individual white blood cells to entire organs - as well as many complex biological processes. The fun...The immune system is a host defense system. It comprises many biological structures - ranging from individual white blood cells to entire organs - as well as many complex biological processes. The function of the immune system is to protect the host from pathogens and other causes of disease such as tumor cells. To function properly, the immune system must be able to detect a wide variety of pathogens.
  • https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/15%3A_The_Anatomy_and_Physiology_of_Animals/15.04%3A_Immune_System/15.4N%3A_The_Immunological_Synapse
    This page discusses the interactions in immunological responses, focusing on T cells and antigen-presenting cells (APCs). It highlights the roles of helper T cells and cytotoxic T lymphocytes, T-cell ...This page discusses the interactions in immunological responses, focusing on T cells and antigen-presenting cells (APCs). It highlights the roles of helper T cells and cytotoxic T lymphocytes, T-cell receptor (TCR) binding to MHC molecules, and the importance of costimulatory molecules, adhesion molecules, and cytokine receptors. These interactions are crucial for T cell activation and subsequent gene expression, resulting in the secretion of signaling molecules and cytotoxic factors.

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