Adcc Guides d'étude, Notes de cours & Résumés

neutralization antibodies block spike proteins and prevent viruses from binding to cell receptors agglutination - antibodies "stick bacteria together" - large clump is easier for phagocyte to recognize opsonization - "eat me" tags - C3b and antibodies - enhance phagocytosis complement activation classical pathway initiated by antibody binding ag for destruction - NK cells kill bacteria/infected cell - ADCC (antibody dependent cellular cytotoxicity) - antibodies serve as re...

Holder" on APC cell - Macrophages - Dendritic Cells - B-Lymphocytes - MHC II Adjuvant - Help boost response by "irritating" immune system or clumping Antigens After APC goes to Lymph node... - APC touches and activities naive t-helper cells (TH0) and Tcytotoxic cells (Tc0) T-cell receptor: Membrane protein matches MHC II APC Agglutination - Clumping Fab binds to different antigen-bearing cells, causing clumping Great for Bacteria, larger viruses All antibodies are variations / combi...

Characteristics of Immunogens (Antigens) that affect Immunogenicity - Answer 1. Large molecule (at least 10 KDa) 2. High complexity (simple repeating units don't make good immunogens) 3. Chemical composition (proteins and polysachs. are better than carbs, lipids & nucleic acids) 4. Foreignness (the more different from host, the more immunogenic) Differentiate Active from Passive Immunity - Answer *Active:* Individual produces antibody. Follows immunization or infection. Lasting. *P...

MICR 460 Microbiology Final Exam Questions and Answers Latest (Graded A+) Antigen is typically found extracellularly and intracellularly within the cytosol and endosomes A 2. CD8 T cells obtain ITAM phosphorylation before CD4 T cells do during an immune response B 3. Epithelial cells first develop in bone marrow but finish their development in the thymus B 4. ELISAs measure soluble protein antigen A 5. FACS analysis can distinguish different Lin+ cell types but not Lin- cells types because ...

MICR 460 Microbiology Final Exam Questions and Answers Latest 2024/2025 (Graded A+) CD8 T cells obtain ITAM phosphorylation before CD4 T cells do during an immune response B 3. Epithelial cells first develop in bone marrow but finish their development in the thymus B 4. ELISAs measure soluble protein antigen A 5. FACS analysis can distinguish different Lin+ cell types but not Lin- cells types because Lin- cells do not express Lin+ cell surface markers B 6. Macrophages become activated by re...

Fc Receptor More Answers, More Questions L. FoR~S~X* and V. V]~TVI6KA Department of Immunology, Institute of Microbiology, Czechoslovak Academy of Sciences, 142 20 Prafue 4 Received September 16, 1983 ABSTRACT. Fc receptors, belonging to the most important surface structures of a number of cells participating in the immune processes, have been intensely studied during the past decade. The present review summarizes the contemporary knowledge of the specificity and hetero- geneit...

Immunity correct answer: The general ability of a host to resist a particular disease/infection Immunology correct answer: The science concerned with immune responses Nonspecific immune response correct answer: Innate; the first line of defense that offers resistance to any foreign material; has no memory Specific immune response correct answer: Acquired/adaptive; offers resistance to a specific antigen; has a memory that will cause second exposure to be dealt with more quickly/effe...

Microbiology Exam Questions with 100% Correct Answers | Verified | Updated 1) What type of immunity results from vaccination? A) innate immunity B) naturally acquired active immunity C) naturally acquired passive immunity D) artificially acquired active immunity E) artificially acquired passive immunity - answerD) Artificially acquired active immunity 2) What type of immunity results from transfer of antibodies from one individual to a susceptible individual by means of injection? A) i...

Chapter Microbiology Written Exam. 1) What type of immunity results from vaccination? A) innate immunity B) naturally acquired active immunity C) naturally acquired passive immunity D) artificially acquired active immunity E) artificially acquired passive immunity - CORRECT ANSWER D) Artificially acquired active immunity 2) What type of immunity results from transfer of antibodies from one individual to a susceptible individual by means of injection? A) innate immunity B) natu...

What is type I hypersensitivity and antigen form? - IgE and soluble antigen What is type II hypersensitivity? - IgG OR IgM and cell-bound antigen What is type III hypersensitivity? - IgG AND IgM and soluble antigen What is type IV hypersensitvity? - T Cells and soluble or cell-bound antigen What is type I hypersensitivity mechanism of activation? - -Allergen-specific IgE antibodies bind to mast cells via their Fc receptor. -When the specific allergen binds to the IgE, cross-linkin...