T and B Cell Costimulation

Post on 20-Jan-2016

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T and B Cell Costimulation. Robert H. Carter, MD rcarter@uab.edu Div. Rheumatology, Dept. Medicine Dept. Microbiology Program in Cellular and Molecular Biology Program in Immunology University of Alabama at Birmingham. Germinal Center, WT CD19, SRBC Day 7. Red pulp. FDC. Germinal - PowerPoint PPT Presentation

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  • T and B Cell CostimulationRobert H. Carter, MDrcarter@uab.eduDiv. Rheumatology, Dept. MedicineDept. MicrobiologyProgram in Cellular and Molecular BiologyProgram in ImmunologyUniversity of Alabama at Birmingham

  • PNA Alexa 488 GreenCD35 Alexa 350 BlueKi-67 Alexa 555 RedIgD Bio SA-Cy5 goldGerminal Center, WT CD19, SRBC Day 7 CentralarterioleGerminalCenterMarginal Sinus Endothelial cellFDCMarginal zoneRed pulp

  • Structure of a Folliclehypermutation affinity maturationclass switch

  • Antigen Binding and Processing

    CD40MHCClass II mIgMB cell

  • Resting T Cell

    T cellT CellReceptor

  • Partial T-B Collaboration-Anergy

  • Priming of T Cell-CD40L

    CD28T cell

  • T-B Collaboration-CD80

    CD40

  • PrimedB CellCD28T-B Collaboration-CTLA4CD80

  • Collaboration blocked? AnergyBlocking AgentsCD80CD28T cellCD40Lanti-CD40LCTLA4IgB cell