The Body’s Defenses - Falmouth Schools in Falmouth Maine
... http://www.haverford.edu/biology/Punt/T%20cells%20in%20blood.jpg ...
... http://www.haverford.edu/biology/Punt/T%20cells%20in%20blood.jpg ...
Slide 1
... Term natural killer derives from the fact that if these cells are isolated from the blood or spleen, they kill various target cells without a need for additional activation ...
... Term natural killer derives from the fact that if these cells are isolated from the blood or spleen, they kill various target cells without a need for additional activation ...
Monday, June 1 Registration 15:00 – Keynote Lecture 17:00 – 18:20
... 079. BASIS FOR IL-7’S FUNCTION AS A HOMEOSTATIC CYTOKINE Motoko Kimura 080. SELF MHC CLASS I SUPPORTS SURVIVAL OF NAÏVE CD8+ T CELLS BUT DEPRESS THEIR SENSITIVITY THROUGH DOWNREGULATION OF CD8 LEVELS Kensuke Takada ...
... 079. BASIS FOR IL-7’S FUNCTION AS A HOMEOSTATIC CYTOKINE Motoko Kimura 080. SELF MHC CLASS I SUPPORTS SURVIVAL OF NAÏVE CD8+ T CELLS BUT DEPRESS THEIR SENSITIVITY THROUGH DOWNREGULATION OF CD8 LEVELS Kensuke Takada ...
Lymphatic System
... Body has difficulty in discriminating between its own antigens and foreign antigens ...
... Body has difficulty in discriminating between its own antigens and foreign antigens ...
mast cells
... proteases (late phase) localized anaphylaxis = atopy (asthma, hay fever, eczema, hives) systemic anaphylaxis – circulatory shock, dyspnea, laryngospasm Ts activity ...
... proteases (late phase) localized anaphylaxis = atopy (asthma, hay fever, eczema, hives) systemic anaphylaxis – circulatory shock, dyspnea, laryngospasm Ts activity ...
Circulation and gas exchange
... Natural killer cells: They do not attack microorganisms directly, but rather destroy the body's own infected cells, especially cells harboring viruses, which can reproduce only within host cells. The natural killers also assault aberrant cells that could form tumors, by attacking the membrane of the ...
... Natural killer cells: They do not attack microorganisms directly, but rather destroy the body's own infected cells, especially cells harboring viruses, which can reproduce only within host cells. The natural killers also assault aberrant cells that could form tumors, by attacking the membrane of the ...
Immune Responses to Viral Infections
... • Some B cells and T cells can survive as memory cells long after the first or subsequent encounters. Memory cells have returned to a resting state, from which they can be reactivated if they encounter the same antigen again. • These cells are the basis of immunological memory, which can be formed a ...
... • Some B cells and T cells can survive as memory cells long after the first or subsequent encounters. Memory cells have returned to a resting state, from which they can be reactivated if they encounter the same antigen again. • These cells are the basis of immunological memory, which can be formed a ...
细胞因子
... named) as a substance that can cause the necrosis of tumors in vivo TNF-α and TNF-β TNF-α is produced by LPS-stimulated mononuclear phagocytes and activated T cells. ...
... named) as a substance that can cause the necrosis of tumors in vivo TNF-α and TNF-β TNF-α is produced by LPS-stimulated mononuclear phagocytes and activated T cells. ...
Chapter 3
... Heavy chain portion of membrane-bound antibody does not extend far enough through the cell membrane for signaling ○ Membrane bound antibody is accompanied by Igα and Igβ ...
... Heavy chain portion of membrane-bound antibody does not extend far enough through the cell membrane for signaling ○ Membrane bound antibody is accompanied by Igα and Igβ ...
Lymphatic System and Immunity
... • Antigen (antibody generator)- any foreign substance (usually a protein) to which the body responds by making chemicals or specialized cells that eliminate that antigen, could be produced by a pathogen or on the surface of a pathogen • Antibodies- proteins that circulate through the body dissolved ...
... • Antigen (antibody generator)- any foreign substance (usually a protein) to which the body responds by making chemicals or specialized cells that eliminate that antigen, could be produced by a pathogen or on the surface of a pathogen • Antibodies- proteins that circulate through the body dissolved ...
Janeway`s Immunology
... decline with time after each immunization (contraction, the process that maintains homeostasis). The same features are seen in cell-mediated immune responses. ...
... decline with time after each immunization (contraction, the process that maintains homeostasis). The same features are seen in cell-mediated immune responses. ...
Inducing and expanding regulatory T cell populations by foreign
... T cells may contribute to self-tolerance as well as the poor immunogenicity of tumors and may be exploited clinically to prevent or reverse unwanted immunity. The contributions of thymically and extrathymically generated suppressor T cells to the peripheral pool of CD4+CD25+ suppressor T cells is no ...
... T cells may contribute to self-tolerance as well as the poor immunogenicity of tumors and may be exploited clinically to prevent or reverse unwanted immunity. The contributions of thymically and extrathymically generated suppressor T cells to the peripheral pool of CD4+CD25+ suppressor T cells is no ...
Micro 532 Exam 1995
... long half-lives of the activated complement components. very low concentrations of the inactivated complement components in serum. the inability to activate the system in the presence of IgG antibodies. once activated, the destructive activities of complement are non-specific. none of the above ...
... long half-lives of the activated complement components. very low concentrations of the inactivated complement components in serum. the inability to activate the system in the presence of IgG antibodies. once activated, the destructive activities of complement are non-specific. none of the above ...
Immunology powerpoint
... 2 functions: filtration and providing lymphocytes and macrophages for immunity Do not trap wbcs but they do trap bacteria, and toxins ...
... 2 functions: filtration and providing lymphocytes and macrophages for immunity Do not trap wbcs but they do trap bacteria, and toxins ...
Lecture 3: Introduction of immune system II - BIDD
... • Activation of T and B cells are different: – T cells: specific recognition of peptide/MHC complex (signal 1) and costimulatory signals by APC (Signal 2) – B cells: recognize native proteins (signal 1). May/may not require signal 2 from CD4+ Th cells (TD and TI antigens) ...
... • Activation of T and B cells are different: – T cells: specific recognition of peptide/MHC complex (signal 1) and costimulatory signals by APC (Signal 2) – B cells: recognize native proteins (signal 1). May/may not require signal 2 from CD4+ Th cells (TD and TI antigens) ...
Immune response and regulation 免疫应答(immune response, Ir)
... 迟 发 型 超 敏 反 应 (delayed type hypersensitivity, DTH) ： caused by lymphocytes 、 lymphocytes and monocytes are main cells found in inflammation site. Activation ...
... 迟 发 型 超 敏 反 应 (delayed type hypersensitivity, DTH) ： caused by lymphocytes 、 lymphocytes and monocytes are main cells found in inflammation site. Activation ...
Chapter 15: Innate Immunity 1. Overview of Innate Immunity 2. Inflammation & Phagocytosis
... • monocytes become actively phagocytic macrophages when stimulated via infection, injury ...
... • monocytes become actively phagocytic macrophages when stimulated via infection, injury ...
CHAPTER 17 ONTOGENY OF THE IMMUNE SYSTEM
... The developing fetus can be regarded as a graft of "foreign" tissue onto the mother; it is clearly a histoincompatible graft, since at least some HLA antigens (those of paternal origin) will be foreign to the mother. If this is so, why is the fetus not recognized as foreign and rejected? In fact, th ...
... The developing fetus can be regarded as a graft of "foreign" tissue onto the mother; it is clearly a histoincompatible graft, since at least some HLA antigens (those of paternal origin) will be foreign to the mother. If this is so, why is the fetus not recognized as foreign and rejected? In fact, th ...
DISEASE - IMMUNE SYSTEM
... 2. Secondary Immune Response This occurs if an antigen that has entered the body before, enters a ...
... 2. Secondary Immune Response This occurs if an antigen that has entered the body before, enters a ...
Immunology overview notes
... B cell grows and clones itself, forming millions of identical cells. Each cell can become a plasma cell, which produces and secretes antibodies specific to the original antigen that activated the original B cell. Plasma cells are carried by lymph and blood to sites of infection in the body. ...
... B cell grows and clones itself, forming millions of identical cells. Each cell can become a plasma cell, which produces and secretes antibodies specific to the original antigen that activated the original B cell. Plasma cells are carried by lymph and blood to sites of infection in the body. ...
T cell
T cells or T lymphocytes are a type of lymphocyte (in turn, a type of white blood cell) that plays a central role in cell-mediated immunity. They can be distinguished from other lymphocytes, such as B cells and natural killer cells (NK cells), by the presence of a T-cell receptor (TCR) on the cell surface. They are called T cells because they mature in the thymus (although some also mature in the tonsils). The several subsets of T cells each have a distinct function. The majority of human T cells rearrange their alpha/beta T cell receptors and are termed alpha beta T cells and are part of adaptive immune system. Specialized gamma delta T cells, which comprise a minority of T cells in the human body (more frequent in ruminants), have invariant TCR (with limited diversity), can effectively present antigens to other T cells and are considered to be part of the innate immune system.