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Published byBathsheba Murphy Modified over 9 years ago
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Chapter 43, Campbell & Reece’s Biology 8th Edition
14-2 Immunology Chapter 43, Campbell & Reece’s Biology 8th Edition
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Overview: Reconnaissance Recognition and Response
Pathogen Barrier Defenses Immune System Innate Immunity Acquired Immunity
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43.1: Reliance on Shared Traits of Pathogens
Innate Immunity of Invertebrates Chitin Lysozyme Hemocytes Phagocytosis Toll Receptors Discussion of Disadvantages
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43.1 (continued) Innate Immunity of Vertebrates Barrier Defenses
Enzymes pH Cellular Innate Defenses Leukocytes TLR Neutrophils Macrophages Responses Exclusive to Vertebrates Lymphatic System
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Eosinophils and Dendritic Cells Antimicrobial Peptides “and” Proteins
Interferons Complement System Inflammatory Responses Histamine Fever Septic Shock
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43.1 Natural Killer (NK) Cells
Role of Class I MHC receptor Innate Immune System Evasion by Pathogens
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43.2: In acquired immunity, lymphocyte receptors provide pathogen-specific recognition
Lymphocytes (/Leukocytes) T Cells B Cells Cytokines Acquired Immunity: An Overview
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43.2: Antigen Recognition by Lymph/Leucocytes
Antigens and their receptors B cells and plasma cells Antibodies/Immunoglobulin Epitopes
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Receptors Heavy & Light Chains Variable & Constant Regions
T vs. B cell receptors Introduction to the MHC
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The Role of the MHC (Major Histocompatibility Complex
Antigen Presentation Class I MHC Molecules Cytotoxic T Cells Class II MHC Molecules Antigen presenting cells Recognition Properties of the Acquired Immune System
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Amino acid rearrangement
Review: Figure 17.10, Campbell 8th edition, RNA splicing, etc. Recombinase
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Origin of Self-Tolerance
Involvement of Apoptosis
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Amplifying Lymphocytes by Clonal Selection
Effector and Memory Cells Clonal Selection Primary Immune Response B Cell role T Cell role Secondary Immune Response
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43.3: Acquired immunity defends against infection of body cells and fluids
Humoral immune response Cell-mediated immune response
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Helper T Cells: A response to nearly all antigens
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Cytotoxic T Cells: A Response to Infected Cells
Cell-mediated CD8 B Cells: A Response to Extracellular Pathogens Humoral
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Antibody Classes IgM: first antibody produced in response to infection
Usually consists of four polypeptide chains IgM: first antibody produced in response to infection IgG: most abundant, and can cross a placenta IgA: found in milk, sweat, and tears IgD: may function to make some B cells memory cells IgE: involved in allergic reactions and stimulates release of histamine Polyclonal Antibodies Monoclonal Antibodies Medical Use
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Role of Antibodies in Immunity
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Active Immunity Immunization Passive Immunity Cowpox
Accelerated secondary response Influence on society International affairs Side effects Passive Immunity IgG IgA
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Immune Rejection Blood Groups Tissue/Organ Transplants
Bone Marrow Transplant
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43.4: Disruptions in immune system function can elicit or exacerbate disease
Allergens IgE Anaphylactic Shock Autoimmunity Lupus, Rheumatoid Arthritis, Type 1 Diabetes Mellitus, Multiple Sclerosis Rh incompatibility Cancer
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HIV (Human Immunodeficiency Virus)
Helper T Cells Use of CD4 protein Transmission & Effects AZT Protease Inhibitor Treatment Social Implications Discussion on Rationalized Morality
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