Chapter 11 Immune response(Ir)
... Th cells provide co-stimulatory signal for B cells: TCRs on activated Th cells recognize antigen peptide-class Ⅱ MHC complex presented on B cells, and CD40L on T cells bind to CD40 on B cells which provide co-stimulatory signal for B cells. ...
... Th cells provide co-stimulatory signal for B cells: TCRs on activated Th cells recognize antigen peptide-class Ⅱ MHC complex presented on B cells, and CD40L on T cells bind to CD40 on B cells which provide co-stimulatory signal for B cells. ...
第九章 免疫系统
... Located within the cortex . It is APC with MHC II molecules which are involved in thymic cell education. ...
... Located within the cortex . It is APC with MHC II molecules which are involved in thymic cell education. ...
Exam 3 Review
... Gluconeogenesis – synthesis of glucose from lactic acid and noncarbohydrates Glycogenolysis – breakdown of glycogen to glucose Half life – the time required for a hormone’s blood level to decrease by half Homeostasis – The tendency of an organism or a cell to regulate its internal conditions, usuall ...
... Gluconeogenesis – synthesis of glucose from lactic acid and noncarbohydrates Glycogenolysis – breakdown of glycogen to glucose Half life – the time required for a hormone’s blood level to decrease by half Homeostasis – The tendency of an organism or a cell to regulate its internal conditions, usuall ...
Lab Dx Day 1 Intro to Hematopoietic System
... The third class of proteins in immune system (B and T cells and MHC) MHC - found on all cell surfaces T cells require recognition of both antigen and a self MHC protein ...
... The third class of proteins in immune system (B and T cells and MHC) MHC - found on all cell surfaces T cells require recognition of both antigen and a self MHC protein ...
Document
... know how humoral and cell-mediated immunity differ know differences between T cell and B cell receptors know what types of antigens and antibodies are found type A, B, AB, and O blood, who each can receive blood from and give blood to, RH+ and Rhknow the complement protein system’s different functio ...
... know how humoral and cell-mediated immunity differ know differences between T cell and B cell receptors know what types of antigens and antibodies are found type A, B, AB, and O blood, who each can receive blood from and give blood to, RH+ and Rhknow the complement protein system’s different functio ...
T cells
... macromolecules from the intestinal lumen into subepithelial tissues. •They are thought to play an important role in delivering antigen to Peyer’s patches ...
... macromolecules from the intestinal lumen into subepithelial tissues. •They are thought to play an important role in delivering antigen to Peyer’s patches ...
Bacterial Pathogenesis I
... a. Antibiotics are originally from natural products (selected in nature from the competition between microbes, like Penicillin, for example). b. Antibiotics block essential microbial-specific functions (like DNA replication, protein synthesis, cell wall synthesis, etc.). c. Antibiotic resistance com ...
... a. Antibiotics are originally from natural products (selected in nature from the competition between microbes, like Penicillin, for example). b. Antibiotics block essential microbial-specific functions (like DNA replication, protein synthesis, cell wall synthesis, etc.). c. Antibiotic resistance com ...
Immune Defense notes part 2 fill-in
... _________________ (things that infect you) contain antigens ________________ are like chemical markers (name tag) that tell what the pathogen is B. White Blood Cells and Antibodies ...
... _________________ (things that infect you) contain antigens ________________ are like chemical markers (name tag) that tell what the pathogen is B. White Blood Cells and Antibodies ...
Immune System and how Vaccines Work
... Contains lysozyme Pathogens swallowed are destroyed in the stomach. ...
... Contains lysozyme Pathogens swallowed are destroyed in the stomach. ...
How Immunity Evolved
... the Control of Adaptive Immunity • Antigen receptors expressed on lymphocytes have randomly generated specificities that cannot determine the origin or biological context of their ligands. • Signaling through an antigen receptor is insufficient on its own to induce the activation of lymphocytes or t ...
... the Control of Adaptive Immunity • Antigen receptors expressed on lymphocytes have randomly generated specificities that cannot determine the origin or biological context of their ligands. • Signaling through an antigen receptor is insufficient on its own to induce the activation of lymphocytes or t ...
Adv Phys Immune System
... inflammed portions of the skin Scientists have found that people with atopic dermatitis have a low level of a cytokine (a protein) that is essential to the healthy function of the body's immune system and a high level of other cytokines that lead to ...
... inflammed portions of the skin Scientists have found that people with atopic dermatitis have a low level of a cytokine (a protein) that is essential to the healthy function of the body's immune system and a high level of other cytokines that lead to ...
biology 404 immunology
... development, maturation, and responses of the variety of immune cells of the body. To learn the distinctions between the innate and the adaptive immune responses, where they occur, the organs, cells, and molecules involved, and an appreciation for the collaboration that exists within and between t ...
... development, maturation, and responses of the variety of immune cells of the body. To learn the distinctions between the innate and the adaptive immune responses, where they occur, the organs, cells, and molecules involved, and an appreciation for the collaboration that exists within and between t ...
Cells and Tissues of the Immune System
... Lymphocyte Recirculation • Only a small number of lymphocytes can recognize one specific Ag. In order to increase the likelihood that specific immunocompetent cells will see an Ag, the lymphocytes (TH) continuously circulate through the body – lymphocytes move from blood into tissues by diapedesis, ...
... Lymphocyte Recirculation • Only a small number of lymphocytes can recognize one specific Ag. In order to increase the likelihood that specific immunocompetent cells will see an Ag, the lymphocytes (TH) continuously circulate through the body – lymphocytes move from blood into tissues by diapedesis, ...
Current reviews of allergy and clinical immunology Innate immune
... Complement, through the alternative and mannose-binding lectin pathways, mediates antibody-independent opsonization, phagocyte recruitment, and microbial lysis. Phagocytes migrate from the microcirculation into infected tissue and ingest and kill invading microbes. These innate immune mechanisms and ...
... Complement, through the alternative and mannose-binding lectin pathways, mediates antibody-independent opsonization, phagocyte recruitment, and microbial lysis. Phagocytes migrate from the microcirculation into infected tissue and ingest and kill invading microbes. These innate immune mechanisms and ...
Type III Hypersensitivity - Dow University of Health Sciences
... complex with skin proteins and this complex is then internalized by antigen presenting cells, processed and presented with Class II MHC molecules which are recognized by appropriate TH1 cells and which are now “sensitized” to pentadecacatechol Subsequent exposure to pentadecacatechol will activate t ...
... complex with skin proteins and this complex is then internalized by antigen presenting cells, processed and presented with Class II MHC molecules which are recognized by appropriate TH1 cells and which are now “sensitized” to pentadecacatechol Subsequent exposure to pentadecacatechol will activate t ...
Inflammatory response to infectious pulmonary injury C. Delclaux , E. Azoulay *
... When the microbial challenge is either too large or too virulent, large numbers of neutrophils are recruited into the alveolar spaces from the marginated pool of neutrophils in the pulmonary vasculature [15]. As a matter of fact, neutrophils are virtually absent from alveolar space in a healthy cond ...
... When the microbial challenge is either too large or too virulent, large numbers of neutrophils are recruited into the alveolar spaces from the marginated pool of neutrophils in the pulmonary vasculature [15]. As a matter of fact, neutrophils are virtually absent from alveolar space in a healthy cond ...
Presentation
... • Inflammation can be induced by immune recognition of infection or tissue damage (usually good) • Inflammation can be induced by immune recognition that is hypersensitive to environmental components or autoinflammatory or autoimmune (=disease) • Acute inflammation: influx of white blood cells and f ...
... • Inflammation can be induced by immune recognition of infection or tissue damage (usually good) • Inflammation can be induced by immune recognition that is hypersensitive to environmental components or autoinflammatory or autoimmune (=disease) • Acute inflammation: influx of white blood cells and f ...
Document
... The adaptive immune response is antigen specific and requires the recognition of antigens during antigen presentation. Lymphocytes are cells which have special types of leukocytes called lymphocytes. Natural killer cells are a component which does not attack invading microbes. Killer t cells are a s ...
... The adaptive immune response is antigen specific and requires the recognition of antigens during antigen presentation. Lymphocytes are cells which have special types of leukocytes called lymphocytes. Natural killer cells are a component which does not attack invading microbes. Killer t cells are a s ...
File
... An antigen is a protein on the outside of a foreign cell that can be recognised as ‘foreign’ and can evoke an immune response A protein produced by certain leucocytes (B lymphocytes, plasma cells) in response to a specific antigen In the bone marrow Antibodies are produced by lymphocytes once they h ...
... An antigen is a protein on the outside of a foreign cell that can be recognised as ‘foreign’ and can evoke an immune response A protein produced by certain leucocytes (B lymphocytes, plasma cells) in response to a specific antigen In the bone marrow Antibodies are produced by lymphocytes once they h ...
f212 health and disease
... Stages in phagocytosis • Pathogens are recognised by antigens on their surface • Phagocyte moves towards pathogen and receptors on the cell surface membrane attach to antigens on the pathogen • Phagocyte engulfs the pathogen creating a ...
... Stages in phagocytosis • Pathogens are recognised by antigens on their surface • Phagocyte moves towards pathogen and receptors on the cell surface membrane attach to antigens on the pathogen • Phagocyte engulfs the pathogen creating a ...
T cells - edl.io
... • Release antimicrobial peptides and bacteria-digesting enzymes • Generate free radicals which kill engulfed bacteria ...
... • Release antimicrobial peptides and bacteria-digesting enzymes • Generate free radicals which kill engulfed bacteria ...
Blood PPT
... 5. Plasma cells then secrete specific antibodies (at a rate of 2000/sec per cell) that enter circulation and bind to the surface proteins of the specific antigen. 6. The remaining B cells that don’t change into plasma cells remain as memory B cells ...
... 5. Plasma cells then secrete specific antibodies (at a rate of 2000/sec per cell) that enter circulation and bind to the surface proteins of the specific antigen. 6. The remaining B cells that don’t change into plasma cells remain as memory B cells ...
Immune System
... 12. ___The smallest, and the most numerous types of white blood cells within the human body. 13. ___Digests foreign microorganisms and old or dead body cells, such as pus. 14. ___Breaks down bacterial cells through the use of enzymes. 15. ___Mainly travels in the blood, but can come into contact wit ...
... 12. ___The smallest, and the most numerous types of white blood cells within the human body. 13. ___Digests foreign microorganisms and old or dead body cells, such as pus. 14. ___Breaks down bacterial cells through the use of enzymes. 15. ___Mainly travels in the blood, but can come into contact wit ...
Phagocyte
Phagocytes are cells that protect the body by ingesting (phagocytosing) harmful foreign particles, bacteria, and dead or dying cells. Their name comes from the Greek phagein, ""to eat"" or ""devour"", and ""-cyte"", the suffix in biology denoting ""cell"", from the Greek kutos, ""hollow vessel"". They are essential for fighting infections and for subsequent immunity. Phagocytes are important throughout the animal kingdom and are highly developed within vertebrates. One litre of human blood contains about six billion phagocytes. They were first discovered in 1882 by Ilya Ilyich Mechnikov while he was studying starfish larvae. Mechnikov was awarded the 1908 Nobel Prize in Physiology or Medicine for his discovery. Phagocytes occur in many species; some amoebae behave like macrophage phagocytes, which suggests that phagocytes appeared early in the evolution of life.Phagocytes of humans and other animals are called ""professional"" or ""non-professional"" depending on how effective they are at phagocytosis. The professional phagocytes include many types of white blood cells (such as neutrophils, monocytes, macrophages, mast cells, and dendritic cells). The main difference between professional and non-professional phagocytes is that the professional phagocytes have molecules called receptors on their surfaces that can detect harmful objects, such as bacteria, that are not normally found in the body. Phagocytes are crucial in fighting infections, as well as in maintaining healthy tissues by removing dead and dying cells that have reached the end of their lifespan.During an infection, chemical signals attract phagocytes to places where the pathogen has invaded the body. These chemicals may come from bacteria or from other phagocytes already present. The phagocytes move by a method called chemotaxis. When phagocytes come into contact with bacteria, the receptors on the phagocyte's surface will bind to them. This binding will lead to the engulfing of the bacteria by the phagocyte. Some phagocytes kill the ingested pathogen with oxidants and nitric oxide. After phagocytosis, macrophages and dendritic cells can also participate in antigen presentation, a process in which a phagocyte moves parts of the ingested material back to its surface. This material is then displayed to other cells of the immune system. Some phagocytes then travel to the body's lymph nodes and display the material to white blood cells called lymphocytes. This process is important in building immunity, and many pathogens have evolved methods to evade attacks by phagocytes.