幻灯片 1
... TI-1 antigen: also named B cell mitogen 1. Contains B cell mitogen and repeated B epitopes 2. Can induce immature and mature B cell-mediate immune response 3. In high concentrations, can induce polyclonal B-cell activation 4. In lower concentrations, only the BCR-binding TI-1 antigens can activate ...
... TI-1 antigen: also named B cell mitogen 1. Contains B cell mitogen and repeated B epitopes 2. Can induce immature and mature B cell-mediate immune response 3. In high concentrations, can induce polyclonal B-cell activation 4. In lower concentrations, only the BCR-binding TI-1 antigens can activate ...
Immunity
... The body needs to be able to distinguish between its own cells (self) and foreign cells (non-self). In the fetus the lymphocytes (a type of white blood cell) are constantly colliding almost exclusively with the body’s own material (self). These lymphocytes are destroyed or suppresses so that the onl ...
... The body needs to be able to distinguish between its own cells (self) and foreign cells (non-self). In the fetus the lymphocytes (a type of white blood cell) are constantly colliding almost exclusively with the body’s own material (self). These lymphocytes are destroyed or suppresses so that the onl ...
Immune System
... with antibodies for indirect attack 2. Cell-mediated Immunity – has T cells with more direct attack 3. lymphocytes densest where they develop: bone marrow, thymus, lymph nodes, spleen ...
... with antibodies for indirect attack 2. Cell-mediated Immunity – has T cells with more direct attack 3. lymphocytes densest where they develop: bone marrow, thymus, lymph nodes, spleen ...
Chapter 13 – Lessonn 2 – The Immune System
... surface that you touch. There is nothing to be afraid of because your body protects you most of the time. Your body has 5 major barriers to block pathogens. ...
... surface that you touch. There is nothing to be afraid of because your body protects you most of the time. Your body has 5 major barriers to block pathogens. ...
Immunity Chap 5
... IgG - monomer (only one crosses placenta, involve majority of immune responses) IgA – dimer – 2 units - in secretions, found in the mucus area like gut, respiratory and urogenital tract, also in saliva, milk, tears IgM – pentamer – 5 units, present early, before IgG is abundant IgD – monomer – on su ...
... IgG - monomer (only one crosses placenta, involve majority of immune responses) IgA – dimer – 2 units - in secretions, found in the mucus area like gut, respiratory and urogenital tract, also in saliva, milk, tears IgM – pentamer – 5 units, present early, before IgG is abundant IgD – monomer – on su ...
The Human Immune System - De Soto Area School District
... White Blood Cells ~T-Cells~ • T-Cells, often called “natural killer” cells, recognize infected human cells and cancer cells • T-cells will attack these infected cells, quickly kill them, and then continue to search for more cells to kill ...
... White Blood Cells ~T-Cells~ • T-Cells, often called “natural killer” cells, recognize infected human cells and cancer cells • T-cells will attack these infected cells, quickly kill them, and then continue to search for more cells to kill ...
antibodies - Canvas by Instructure
... White Blood Cells ~T-Cells~ • T-Cells, often called “natural killer” cells, recognize infected human cells and cancer cells • T-cells will attack these infected cells, quickly kill them, and then continue to search for more cells to kill ...
... White Blood Cells ~T-Cells~ • T-Cells, often called “natural killer” cells, recognize infected human cells and cancer cells • T-cells will attack these infected cells, quickly kill them, and then continue to search for more cells to kill ...
Stem Cell Classification Adult Stem Cells Embryonic Stem Cells
... stem cells are also found in children and in umbilical cord blood, so the term somatic stem cell is more accurate although less frequently used. A major advantage of adult stem cells is that they can be taken from a patient, grown in culture, and put back into the patient. Thus, the risk of transpla ...
... stem cells are also found in children and in umbilical cord blood, so the term somatic stem cell is more accurate although less frequently used. A major advantage of adult stem cells is that they can be taken from a patient, grown in culture, and put back into the patient. Thus, the risk of transpla ...
35.2 Nonspecific and Specific Defenses
... made in Bone marrow T cells lymphocytes helper T: control immune system (TH) cytotoxic T: kills germs (TC) suppresser T: stops immune system when the attack is over (TS) made in Thymus ...
... made in Bone marrow T cells lymphocytes helper T: control immune system (TH) cytotoxic T: kills germs (TC) suppresser T: stops immune system when the attack is over (TS) made in Thymus ...
6mb
... Orchestration of the Immune Response Immune system cells are generated from bone marrow stem cells Primary lymphoid tissues: Bone marrow- Generates B cells, macrophages, dendritic cells, granulocytes Thymus- Generates T cells Cells from primary lymphoid tissues usually move to secondary tissues Spl ...
... Orchestration of the Immune Response Immune system cells are generated from bone marrow stem cells Primary lymphoid tissues: Bone marrow- Generates B cells, macrophages, dendritic cells, granulocytes Thymus- Generates T cells Cells from primary lymphoid tissues usually move to secondary tissues Spl ...
Chp.7 Immune Lec
... • An immediate allergic response is caused by the IgE antibodies that attach to mast and basophils. When allergens attach to these IgE molecules histamine is released and we see allergy symptoms. • A immediate allergic response that occurs when the allergen enters the bloodstream is anaphylactic sho ...
... • An immediate allergic response is caused by the IgE antibodies that attach to mast and basophils. When allergens attach to these IgE molecules histamine is released and we see allergy symptoms. • A immediate allergic response that occurs when the allergen enters the bloodstream is anaphylactic sho ...
Blood
... • Hypersplenism (splenomegaly) – in a number of conditions the spleen may become enlarged. • Leukopenia: decreased in WBCs. • Thrombocytopenia: decreased in platelets. • Pancytopenia: when all three cells types are decreased. ...
... • Hypersplenism (splenomegaly) – in a number of conditions the spleen may become enlarged. • Leukopenia: decreased in WBCs. • Thrombocytopenia: decreased in platelets. • Pancytopenia: when all three cells types are decreased. ...
Cellular Components of the Immune Response
... What happens if damaged cells are not destroyed? What happens if Apoptosis is not invoked? Bcl-2 gene up-regulation in leucocytes leads to leukemia. (Strong inhibition of Apoptosis) FAS Gene or Caspase Genes down-regulated or lost in cells leads to leukemia and other cancer. (Failure to initiate or ...
... What happens if damaged cells are not destroyed? What happens if Apoptosis is not invoked? Bcl-2 gene up-regulation in leucocytes leads to leukemia. (Strong inhibition of Apoptosis) FAS Gene or Caspase Genes down-regulated or lost in cells leads to leukemia and other cancer. (Failure to initiate or ...
The Human Immune System
... - Planned exposure to a form of the antigen that has been killed or weakened – You detected it, eliminated it, and remember it What is this second type of exposure called? ...
... - Planned exposure to a form of the antigen that has been killed or weakened – You detected it, eliminated it, and remember it What is this second type of exposure called? ...
Cardiovascular Tissue Engineering
... cell adhesion, integration into surrounding tissue without extensive inflammatory response or support of infection, proper mass transfer ...
... cell adhesion, integration into surrounding tissue without extensive inflammatory response or support of infection, proper mass transfer ...
MICROBIO320 EXAM 1-Fall 2009 Name 1 True/False (1 point each
... __F__ 8. Relatively speaking, the innate immune system is a slow response while the adaptive immune system is a very fast response. __F__ 9. Only immature T lymphocytes are subjected to peripheral tolerance. __T__10. Antigen is presented to T cell mainly in secondary lymphoid organs. __T__11. C3 is ...
... __F__ 8. Relatively speaking, the innate immune system is a slow response while the adaptive immune system is a very fast response. __F__ 9. Only immature T lymphocytes are subjected to peripheral tolerance. __T__10. Antigen is presented to T cell mainly in secondary lymphoid organs. __T__11. C3 is ...
Immune Systm.graffle
... The ability of the body to defend itself against pathogens or poisons depends on the immune system. The T helper cells have the ability to recognize antigens (foreign substance). Once this is done, other cells (B cells) must make special molecules out of protein that attach to the antigen. These spe ...
... The ability of the body to defend itself against pathogens or poisons depends on the immune system. The T helper cells have the ability to recognize antigens (foreign substance). Once this is done, other cells (B cells) must make special molecules out of protein that attach to the antigen. These spe ...
Types of cell-mediated immune reactions
... The interplay of signals from the T cell receptor, the cytokine IL-4, and the TF GATA-3 and STAT6 Th2 differentiation is dependent on IL-4 IL-4 ...
... The interplay of signals from the T cell receptor, the cytokine IL-4, and the TF GATA-3 and STAT6 Th2 differentiation is dependent on IL-4 IL-4 ...
T cells T cells
... TH2 based immune response TH2 cells cooperate with B lymphocytes (which were stimulated by Ag) by cytokine production (IL-4, IL-5, IL-6, IL-10) and direct intercellular contact (CD 40L) For stimulation of B lymphocytes is usually necessary cooperation between APC → TH2 cell → B lymphocyte In ...
... TH2 based immune response TH2 cells cooperate with B lymphocytes (which were stimulated by Ag) by cytokine production (IL-4, IL-5, IL-6, IL-10) and direct intercellular contact (CD 40L) For stimulation of B lymphocytes is usually necessary cooperation between APC → TH2 cell → B lymphocyte In ...
Autoimmune T cells—not always the bad guys
... Autoimmune T cells—not always the bad guys Autoimmune attack of central nervous system (CNS) components is associated with devastating neurodegenerative diseases such as multiple sclerosis. Although autoimmune T cells are usually viewed as detrimental, Schwartz and colleagues report on page 49 of th ...
... Autoimmune T cells—not always the bad guys Autoimmune attack of central nervous system (CNS) components is associated with devastating neurodegenerative diseases such as multiple sclerosis. Although autoimmune T cells are usually viewed as detrimental, Schwartz and colleagues report on page 49 of th ...
Microbiology – Chapter 15
... interactions. 6. Small molecules that are too small to cause an immune response are called haptens. Penicillin is an example. By itself, too small to be antigenic, but it combines with serum proteins and then can become antigenic (penicillin allergy ) ...
... interactions. 6. Small molecules that are too small to cause an immune response are called haptens. Penicillin is an example. By itself, too small to be antigenic, but it combines with serum proteins and then can become antigenic (penicillin allergy ) ...
Tissue effector memory T cells Lymphoid central memory T cells
... IgG antibody suppresses the activation of naive B cells by cross-linking the B-cell receptor and FcγRIIB1 on the B-cell surface ...
... IgG antibody suppresses the activation of naive B cells by cross-linking the B-cell receptor and FcγRIIB1 on the B-cell surface ...
Activity Overview Continued
... means “eating cell”. These scavenger cells track down and eat the invaders! This process is called phagocytosis. The names of some phagocytes from your second line of defense system are natural killer cells and macrophages. Dendritic cells (not to be confused with dendrites of neurons) are found in ...
... means “eating cell”. These scavenger cells track down and eat the invaders! This process is called phagocytosis. The names of some phagocytes from your second line of defense system are natural killer cells and macrophages. Dendritic cells (not to be confused with dendrites of neurons) are found in ...
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.