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Basic Concepts of Immunology Scott Barnum, Ph.D.

Basic Concepts of Immunology Scott Barnum, Ph.D. Immunology is Important to You as a Future Clinician Because:. 1. Failure of the immune system to cope with infection/trauma is the reason for many patient visits. 2. Immunological status of your patients dictates treatment decisions.

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Basic Concepts of Immunology Scott Barnum, Ph.D.

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  1. Basic Concepts of Immunology Scott Barnum, Ph.D.

  2. Immunology is Important to You as a Future Clinician Because: 1. Failure of the immune system to cope with infection/trauma is the reason for many patient visits 2. Immunological status of your patients dictates treatment decisions 3. Need to protect yourself and your staff from infection

  3. Immune System Components Cells and Organs: thymus, spleen, lymph nodes, stem cells and precursors, T and B cells, macrophages (MØ), neutrophils (PMN), dendritic cells (DC), mast cells and others Humoral/Soluble: antibody, cytokines, complement, acute phase proteins, enzymes, antimicrobials, etc.

  4. Innate Versus Adaptive Immunity

  5. Innate Immune Mechanisms of Protecting the Host

  6. Innate Immune Mechanisms of Protecting the Host Phagocytosis Inflammation

  7. How Does the Innate Immune System Recognize Infection? • Via Pathogen Associated Molecular Patterns (PAMPs) • Specific receptors recognize microbial components • (LPS, lipoproteins, peptidoglycan, ssRNA etc) • These receptors are termed Pattern Recognition Receptors (PRRs) • Examples of PRRs include: Collectins, CRP and Toll-like receptors

  8. Toll-like Receptors (TLRs)

  9. Adaptive Immunity Active Immunity - Passive Immunity - Humoral Immunity - Cell-mediated Immunity -

  10. Adaptive Immunity - mediated by lymphocytes

  11. Adaptive Immunity Cardinal Features Specificity - Diversity - Memory - Self-Limiting Response - Recognition of Self vs. Non-self -

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