PPT-Antibody-mediated Immunity

Dr Amany Ballow Consultant Immunology Assistant professor KKUH General Lab Director MDLAB PhD Diploma BSHIMSC Objectives To describe Bcells as the mediators of humoral immunity antibodymediated immunity. . Response occurs within days of the infection. . Highly specific. . Highly diverse. . Memory component. . Major cell types involved: T cells, B cells and antigen presenting cells. Antigens and Antibodies (CH4). Chaparral High School. What is immunology?. Very simply, it is the study of our body’s defense against infection and disease.. Even though we are constantly bombarded by microorganisms, we rarely become sick. Why?.  . Immunity . is defined as the capacity of the body to resist the pathogenic agents. It is the ability of the body to resist the entry of . different types of . foreign bodies like bacteria, . virus, . Pages 357 - 366. Biology 20 Unit D. 11.2 The Body’s Line of Defence . Pathogen: . an organism causing disease . An infectious disease may be caused by:. Viruses, bacteria, fungi, protozoa, flatworms and roundworms. Immune Responses. Applications of the Immune Response. A. Vaccination – the practice of deliberately stimulating the immune system in order to protect individuals against a disease. 1. Edward Jenner developed the first official smallpox . 1. Transport fluids = excess . interstitial fluids . are returned. to the cardiovascular system. 2. Immunity = houses and transports . lymphocytes. 3. Transport lipids = circulates fats, like vitamins . 2 Features of primary and secondary antibody response Primary response Secondary response Time lag after immunization Usually 5-10 days Usually 1-3 days Peak response Smaller Larger Antibody is HUMORAL IMMUNE SYSTEM BY: DR. LUNA PHUKAN TDC 5 TH SEM MAJOR : PAPER 5.3 CELL MEDIATED IMMUNE SYSTEM Cell - mediated immune responses involve the destruction of infected cells by cytotoxic T cell ACTIVE vs ADVANTAGES AND DISADVANTAGES OF EACH APPROACH Arturo Casadevall Albert Einstein College of Medicine Bronx, New York DEFINITIONS • ACTIVE IMMUNIZATION = VACCINES • PASSIVE IMMUNIZATION = Immunological Disorders. Introduction. A. There are three types of immunological disorders. 1. Hypersensitivity. 2. Autoimmune disease. 3. Immunodeficiency. B. Hypersensitivity reactions to usually harmless substances are often called allergies or allergic reactions. Dr. . . Amany. . Ballow. . Consultant Immunology . Assistant professor KKUH. General Lab Director MDLAB. PhD, Diploma BSHI,MSC.. Objective. To describe antigen recognition by T cells . To describe the pathways involved in processing endogenous and exogenous antigens. Department of Pathology. College of . Medicine. KSU. Lecture # 3/6. Foundation block. Teaching objectives. To describe antigen recognition by. T cells. . To describe the pathways involved in processing endogenous and exogenous . Kevin Jenkins, MD, MBA, MHSA. Vanderbilt University Medical Center. 12/10/14. Overview. What is TRALI. Clinical presentation. Prognosis. Differential Diagnosis. Standard therapy. Traditionally accepted mechanism (direct antibody mediated). Four Major Categories of Immune Mechanisms. Humoral. or antibody-mediated immunity . (B lymphocytes). Cell-mediated immunity . (T lymphocytes). Complement system. Phagocytosis. . (. neutrophils. and macrophages) .