Toll-like receptor structure - University of British Columbia
... • AIDS--loss of CD4+ T cells (Intracellular pathogens, fungi, viruses, pyogenic infections, etc.) • Transplant--immunsuppression of T cells (viral, fungal) • Common Variable Immunodeficiency (decreased IgG)--generally mild increase in sinopulmonary bacterial infections • Asplenia--encapsulated bacte ...
... • AIDS--loss of CD4+ T cells (Intracellular pathogens, fungi, viruses, pyogenic infections, etc.) • Transplant--immunsuppression of T cells (viral, fungal) • Common Variable Immunodeficiency (decreased IgG)--generally mild increase in sinopulmonary bacterial infections • Asplenia--encapsulated bacte ...
Vaccination and HIV
... • Antibiotic resistance can cause medicines to become ineffective. – Some bacteria in a population have genes that make them immune to antibiotics. – These bacteria spread the gene, making the antibiotics ...
... • Antibiotic resistance can cause medicines to become ineffective. – Some bacteria in a population have genes that make them immune to antibiotics. – These bacteria spread the gene, making the antibiotics ...
Study Guide For Immune System Test, Chapter 40
... 1. What are the functions of B-lymphocytes, T-lymphocytes, and macrophages? 2. What is the difference between an antigen and an antibody? 3. How does acquired immunity work in a natural way (chicken pox) and when a vaccine is used (polio)? 4. What is the difference between a virus cell and a bacteri ...
... 1. What are the functions of B-lymphocytes, T-lymphocytes, and macrophages? 2. What is the difference between an antigen and an antibody? 3. How does acquired immunity work in a natural way (chicken pox) and when a vaccine is used (polio)? 4. What is the difference between a virus cell and a bacteri ...
Innate and adaptive immunity
... Cells of the innate immune system:, macrophages, granulocytes, natural killer cells, immature B cells • Release of soluble components to opsinise phagocytosis • Release of toxic granules to kill micro-organisms, parasites or virally infected cells • Release of soluble mediators to attract other leu ...
... Cells of the innate immune system:, macrophages, granulocytes, natural killer cells, immature B cells • Release of soluble components to opsinise phagocytosis • Release of toxic granules to kill micro-organisms, parasites or virally infected cells • Release of soluble mediators to attract other leu ...
Physiology of the Blood III. White Blood Cells and the Immune
... - nucleus: two lobes - granules: pink with hematoxylin-eosin staining - life: 1-2 weeks (only few hours spent in the circulation) - target: large parasites (e.g. worms), allergic reaction ...
... - nucleus: two lobes - granules: pink with hematoxylin-eosin staining - life: 1-2 weeks (only few hours spent in the circulation) - target: large parasites (e.g. worms), allergic reaction ...
Immunity and Infection Sexually Transmitted Diseases`
... Types of Immunity Active Immunity – a person produces their own antibodies to the microorganism Passive Immunity - Injection of antibodies produced by other human beings or animals to a person exposed to a disease ...
... Types of Immunity Active Immunity – a person produces their own antibodies to the microorganism Passive Immunity - Injection of antibodies produced by other human beings or animals to a person exposed to a disease ...
Immunity to infection
... • Defensins are antimicrobial proteins produced by macrophages and mucosal cells. Their production is upregulated by proinflammatory cytokines. • The secretory immune system protects the external ...
... • Defensins are antimicrobial proteins produced by macrophages and mucosal cells. Their production is upregulated by proinflammatory cytokines. • The secretory immune system protects the external ...
16. The Body`s Line of Defence
... This line of defence can be mobilized if the invader takes up residence Leukocytes or white blood cells, are large opaque blood cells that may engulf invading microbes or produce antibodies Unlike RBCs, WBCs contain a nucleus, the shape and size of which is used to identify the type of WBC One class ...
... This line of defence can be mobilized if the invader takes up residence Leukocytes or white blood cells, are large opaque blood cells that may engulf invading microbes or produce antibodies Unlike RBCs, WBCs contain a nucleus, the shape and size of which is used to identify the type of WBC One class ...
InfectiousDisease
... Macrophages identifies a pathogen via the antigen Macrophage partially digests pathogen, but displays part of it on its cell membrane (“antigen presentation”) so that circulating leukocytes can recognize and become activated A specific antigen type is identified by leukocytes called helper–T cells ( ...
... Macrophages identifies a pathogen via the antigen Macrophage partially digests pathogen, but displays part of it on its cell membrane (“antigen presentation”) so that circulating leukocytes can recognize and become activated A specific antigen type is identified by leukocytes called helper–T cells ( ...
File
... _______________________. Most viruses are so small, they require a powerful ____________________________ to be seen. Simple in design, viruses can contain anywhere from _________________________ genes. A viruses ___________ coat is called the _____________. The capsid contains specialized __________ ...
... _______________________. Most viruses are so small, they require a powerful ____________________________ to be seen. Simple in design, viruses can contain anywhere from _________________________ genes. A viruses ___________ coat is called the _____________. The capsid contains specialized __________ ...
Lymphatic System Notes- Chapter 12
... *Cytotoxic T cells- specialized in _______________________________ *________________- _______________ other cells to fight invaders * ______________________- stop the immune system -Macrophages arise from ______________________ Active immunity- your B cells __________________________________________ ...
... *Cytotoxic T cells- specialized in _______________________________ *________________- _______________ other cells to fight invaders * ______________________- stop the immune system -Macrophages arise from ______________________ Active immunity- your B cells __________________________________________ ...
Immunology Review
... Apoptosis: programmed cell death Macrophages: innate immune cell, binds pathogens, produce cytokines to attract other phagocytic cells and make blood vessels leaky, may present antigen to stimulate T cell activation (adaptive) Dendritic cells: innate immune cell, may be phagocytic and may present an ...
... Apoptosis: programmed cell death Macrophages: innate immune cell, binds pathogens, produce cytokines to attract other phagocytic cells and make blood vessels leaky, may present antigen to stimulate T cell activation (adaptive) Dendritic cells: innate immune cell, may be phagocytic and may present an ...
Objectives Resistance Nonspecific Defense Inflammatory Response
... Immunity – The body’s ability to protect itself. I. Nonspecific defense – General defense A. Physical Barriers B. Chemicals & Cells II. Specific defense Combats particular strains of diseases ...
... Immunity – The body’s ability to protect itself. I. Nonspecific defense – General defense A. Physical Barriers B. Chemicals & Cells II. Specific defense Combats particular strains of diseases ...
Document
... The primary cells of the immune system are the white blood cells, or leukocytes. There are two general types of immune response: native and acquired. Immunity may be either humoral or cell-mediated. The antibodies secreted by B cells are called immunoglobulins. Antibodies make antigens more visible ...
... The primary cells of the immune system are the white blood cells, or leukocytes. There are two general types of immune response: native and acquired. Immunity may be either humoral or cell-mediated. The antibodies secreted by B cells are called immunoglobulins. Antibodies make antigens more visible ...
Lecture 7 Host Defense Against Infection
... Capable of phagocytosis Process and present antigen using MHC class I or II receptors LPS can directly induce release of mast cell mediators Complement (C3a and C5a) induce mast cells to release mediators ...
... Capable of phagocytosis Process and present antigen using MHC class I or II receptors LPS can directly induce release of mast cell mediators Complement (C3a and C5a) induce mast cells to release mediators ...
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.↑ ↑ ↑