lung cancer 3
... Role of macrophages • Macrophages mediate both ADCC and the nonspecific killing of tumour cells . • Macrophage-mediated cytotoxicity is most efficient when cell-to-cell contact is established, but several cytotoxic soluble factors were also found to play a role. • Activated macrophage cytotoxicity ...
... Role of macrophages • Macrophages mediate both ADCC and the nonspecific killing of tumour cells . • Macrophage-mediated cytotoxicity is most efficient when cell-to-cell contact is established, but several cytotoxic soluble factors were also found to play a role. • Activated macrophage cytotoxicity ...
Lecture outline : Immunity This is a protective or defense mechanism
... Active and Passive Immunity • Active immunity is resistance acquired after contact with • foreign antigens, eg, microorganisims • This contact may consist of : • Clinical or subclinical infections • Immunization with live or killed infectious agents or their antigens. • Exposure to microbial product ...
... Active and Passive Immunity • Active immunity is resistance acquired after contact with • foreign antigens, eg, microorganisims • This contact may consist of : • Clinical or subclinical infections • Immunization with live or killed infectious agents or their antigens. • Exposure to microbial product ...
Chapter 16
... 40. Explain the relationship between an allergic reaction and an immune response. Allergic reactions are closely related to immune responses in that both may involve the sensitizing of lymphocytes or the combining of antigens with antibodies. Allergic reactions are likely to be excessive and to cau ...
... 40. Explain the relationship between an allergic reaction and an immune response. Allergic reactions are closely related to immune responses in that both may involve the sensitizing of lymphocytes or the combining of antigens with antibodies. Allergic reactions are likely to be excessive and to cau ...
E_Released TAKS Questions
... A fish’s ability to taste food is affected by the clarity of aquarium water Tadpoles’ fear of carnivorous insect larvae increases as the tadpoles age The number of times a dog wags its tail indicates how content the dog is ...
... A fish’s ability to taste food is affected by the clarity of aquarium water Tadpoles’ fear of carnivorous insect larvae increases as the tadpoles age The number of times a dog wags its tail indicates how content the dog is ...
Lymphatic System
... • Acquired ability to detect and eliminate foreign substances – Self vs. non-self recognition • MHC ...
... • Acquired ability to detect and eliminate foreign substances – Self vs. non-self recognition • MHC ...
bahan kuliah eksperimentasi immunofarmakologi
... applied to provide contrast that helps the primary stain stand out. Many of these stains show specificity for discrete cellular compartments or antigens, while others will stain the whole cell. Both chromogenic and fluorescent dyes are available for IHC to provide a vast array of reagents to fit eve ...
... applied to provide contrast that helps the primary stain stand out. Many of these stains show specificity for discrete cellular compartments or antigens, while others will stain the whole cell. Both chromogenic and fluorescent dyes are available for IHC to provide a vast array of reagents to fit eve ...
immnity organ 3
... Antigen Presenting Cells: A) Dendritic cell: It is cell found in epithelial tissue. It is APC & act also as phagocytic cell as m.ø. ...
... Antigen Presenting Cells: A) Dendritic cell: It is cell found in epithelial tissue. It is APC & act also as phagocytic cell as m.ø. ...
Types of immunity :- 1- innate immunity 2
... * Innate immunity :-antigen independent ( No require antigen ) - invariant ( generalized ) - early , limited specifity . - the first line of defense . - not have memory . *Cells of innate immunity :1- Neutrophil 2- eosinophil 3- basophil 4- NK cells ( natural killer ) 5- macrophage 6- mast cells . * ...
... * Innate immunity :-antigen independent ( No require antigen ) - invariant ( generalized ) - early , limited specifity . - the first line of defense . - not have memory . *Cells of innate immunity :1- Neutrophil 2- eosinophil 3- basophil 4- NK cells ( natural killer ) 5- macrophage 6- mast cells . * ...
chapter19
... introduced into a susceptible animal Antibodies or immune cells (e.g., Tc cells) must protect the animal from the disease ...
... introduced into a susceptible animal Antibodies or immune cells (e.g., Tc cells) must protect the animal from the disease ...
[email protected]
... • The results of these experiments show that different cell types involved in bone maintenance have different responses to the unloaded microgravity environment. Therefore, this provides several poten:al cell types ...
... • The results of these experiments show that different cell types involved in bone maintenance have different responses to the unloaded microgravity environment. Therefore, this provides several poten:al cell types ...
Acquired Immunity
... * The acquired immune response is more specialized than innate immune response * The acquired immune response involves a combination of two mechanisms : 1) Humoral immune response 2) cell mediated immune response * They interact with one another to destroy foreign body (microorganisms, infected cell ...
... * The acquired immune response is more specialized than innate immune response * The acquired immune response involves a combination of two mechanisms : 1) Humoral immune response 2) cell mediated immune response * They interact with one another to destroy foreign body (microorganisms, infected cell ...
type II
... Schematic illustration of three different mechanisms of antibody-mediated injury in type II hypersensitivity. (A) Complement-dependent reactions that lead to lysis of cells or render them susceptible to phagocytosis. (B) Antibody-dependent cell-mediated cytotoxicity (ADCC). IgGcoated target cells ar ...
... Schematic illustration of three different mechanisms of antibody-mediated injury in type II hypersensitivity. (A) Complement-dependent reactions that lead to lysis of cells or render them susceptible to phagocytosis. (B) Antibody-dependent cell-mediated cytotoxicity (ADCC). IgGcoated target cells ar ...
Name:
... Regarding stem cells all of the following cells are derived from myeloid progenitor cells EXCEPT: A. Eosinophils. B. Mast cells. C. Plasma Cells. D. Neutrophils. E. Dendritic Cells. 30. Which of the following properties are characteristic of antigen recognition by T cells? A. Polysaccharide can be r ...
... Regarding stem cells all of the following cells are derived from myeloid progenitor cells EXCEPT: A. Eosinophils. B. Mast cells. C. Plasma Cells. D. Neutrophils. E. Dendritic Cells. 30. Which of the following properties are characteristic of antigen recognition by T cells? A. Polysaccharide can be r ...
Immunity
... Mast cells release histamine Capillaries dilate and leak Complement proteins attack bacteria White cells attack invaders and clean up ...
... Mast cells release histamine Capillaries dilate and leak Complement proteins attack bacteria White cells attack invaders and clean up ...
Non-specific (innate) immune system Specific (adaptive) immune
... Made in the bone marrow, leukocytes, or white blood cells, are an important part of the immune system. There are two main types: granulocytes, which have granular cytoplasm and a lobed nucleus, and agranulocytes, which have smooth cytoplasm and a non-lobed nucleus. Leukocytes include mast cells, bas ...
... Made in the bone marrow, leukocytes, or white blood cells, are an important part of the immune system. There are two main types: granulocytes, which have granular cytoplasm and a lobed nucleus, and agranulocytes, which have smooth cytoplasm and a non-lobed nucleus. Leukocytes include mast cells, bas ...
Biology Notes
... Skin – perfect barrier if not broken Mucous membranes Cilia – minute hairs lining respiratory surfaces. Enzymes Natural microbial flora Complement proteins Chemical barriers – e.g. acidic stomach ...
... Skin – perfect barrier if not broken Mucous membranes Cilia – minute hairs lining respiratory surfaces. Enzymes Natural microbial flora Complement proteins Chemical barriers – e.g. acidic stomach ...
T helper cell differentiation and memory
... Determination of Th cell differentiation by cytokines ...
... Determination of Th cell differentiation by cytokines ...
Ding Jeak Ling 1
... AP-1). This event induces inflammation-related gene expression during innate immune response. Recently, we have discovered an evolutionarily-conserved ROSproduction which occurs extracellularly at the point of infection, killing the microbe effectively. Our hypothesis is that this ROS-antimicrobial ...
... AP-1). This event induces inflammation-related gene expression during innate immune response. Recently, we have discovered an evolutionarily-conserved ROSproduction which occurs extracellularly at the point of infection, killing the microbe effectively. Our hypothesis is that this ROS-antimicrobial ...
Immune Responses to Infectious Diseases
... are located. Pathogens present within the vesicular compartment of the cell are able to enter the route of antigen processing and presentation via the MHC class II molecule [54]. The MHC class II-peptide complexes can be recognized by CD4 T cells that once activated can produce IFN-γ. This cytokine ...
... are located. Pathogens present within the vesicular compartment of the cell are able to enter the route of antigen processing and presentation via the MHC class II molecule [54]. The MHC class II-peptide complexes can be recognized by CD4 T cells that once activated can produce IFN-γ. This cytokine ...
Animal Diseases
... These cells react to foreign substances by releasing chemicals that kill the pathogen or inactivate the foreign substance ...
... These cells react to foreign substances by releasing chemicals that kill the pathogen or inactivate the foreign substance ...
Immunology PPT - Old Saybrook Public Schools
... Macrophages - migrate throughout the body, others reside in tissues (lymph nodes, spleen) Eosinophils - defend against multicellular parasites such as worms Dendritic cells - populate tissues in contact with the environment Natural Killer Cells (NK) - recognize cancer cells, those infected by viruse ...
... Macrophages - migrate throughout the body, others reside in tissues (lymph nodes, spleen) Eosinophils - defend against multicellular parasites such as worms Dendritic cells - populate tissues in contact with the environment Natural Killer Cells (NK) - recognize cancer cells, those infected by viruse ...
Innate immune system
The innate immune system, also known as the nonspecific immune system, is an important subsystem of the overall immune system that comprises the cells and mechanisms that defend the host from infection by other organisms. The cells of the innate system recognize and respond to pathogens in a generic way, but, unlike the adaptive immune system (which is found only in vertebrates), it does not confer long-lasting or protective immunity to the host. Innate immune systems provide immediate defense against infection, and are found in all classes of plant and animal life. They include both humoral immunity components and cell-mediated immunity components.The innate immune system is an evolutionarily older defense strategy, and is the dominant immune system found in plants, fungi, insects, and primitive multicellular organisms.The major functions of the vertebrate innate immune system include: Recruiting immune cells to sites of infection, through the production of chemical factors, including specialized chemical mediators, called cytokines Activation of the complement cascade to identify bacteria, activate cells, and promote clearance of antibody complexes or dead cells The identification and removal of foreign substances present in organs, tissues, the blood and lymph, by specialised white blood cells Activation of the adaptive immune system through a process known as antigen presentation Acting as a physical and chemical barrier to infectious agents.↑ ↑ ↑