Human Immunodeficiency Virus Draft - FINAL

Human Immunodeficiency Virus Draft - FINAL - Human...

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Human Immunodeficiency Virus Brian Babulic Brandon Berkley Paul Williams The Destruction of TH Cells & the Immune Response
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Immune System Terms Cytotoxic T Cells (Tc Cells) - Act to eliminate viral-infected host cells. - T-cell receptors recognize molecules on the surface of an antigen presenting cell - Induce programmed cell death for cells infected by viruses. B Cells Search out & recognize whole extracellular antigens. Produce antibodies. Helper T Cells (TH Cells) - Specialized group of white blood cells. Stimulate Clonal Selection – increases the number of Tc- cells & B cells specific to a target antigen Dendritic Cells Phagocytize pathogens – break them into fragments Carry part of antigen on cell surface to TH Cells in lymph nodes Tell immune system to make an adaptive immune response. Dendritic cells activate CD4+ TH cells Memory Cells When immune response activated, memory cells are produced (CD4+ ,CCR5+) Memory cells insure a rapid strong response upon re-exposure
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Normal Function of Cellular Immune System and T H Cells Antigen Presenting Cell
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Normal Function of Dendritic and T c Cells - Dendritic Cell Activating CD4+ TH Cell with Antigen - Tc Cell T-cell receptors recognize molecules on the surface of an antigen presenting cell
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Destruction of TH Cells & Incapacitation of Immune System By HIV Antigen Presenting Cell HIV Destruction of TH Cells
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This note was uploaded on 01/26/2011 for the course CHEM 361 taught by Professor Defreitas during the Spring '08 term at Loyola Chicago.

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Human Immunodeficiency Virus Draft - FINAL - Human...

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