Antigen-presenting macrophage activates helper T cell 1Phagocytosis of Bacterium the microbial Bacterial antigen invader 2 Antigens from the dismantled invader are attached to MHC 3MHC proteins and self proteins their attached antigens are displayed on macrophage MHC- surface Macrophage self protein Nucleus Lymphocyte (helper T cell) 4Helper T cells recognize antigens and MHC proteins and bind to the macrophage,initiating a series of immune events
Antigen-presenting macrophage activates helper T cell
Macrophages 'process and present" bacterial antigen to B-and T-cell clones specific to the antigen Macrophage Helper T cell Antibodies enhance phagocytosis by coating the bacteria Cell division Activated Helper T cells secrete B-cell helper T cell growth factor that enhances B-cell proliferation and antibody secretion B-cell growth factor Plasma cell Plasma cells secrete antibodies that bind with the antigenic bactera Antibodies
Role of helper T cells in the humoral response Recognize antigens presented by macrophages Stimulate B cells to produce antibodies
Role of helper T cells in the humoral response - Recognize antigens presented by macrophages - Stimulate B cells to produce antibodies
Antibodies several different classes known as immunoglobulins,IgG,IgM,IgE,etc
Antibodies - several different classes - known as immunoglobulins, IgG, IgM, IgE, etc