Innate Immune Response and T Cell Activation
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Questions and Answers

Which cells are capable of activating mature naïve T cells?

  • Dendritic cells (correct)
  • CD8+ T cells
  • B cells and macrophages
  • CD4+ T cells

    • What is the role of CD4+ T cells?

  • Help activate B cells and macrophages (correct)
  • Activate memory T cells
  • Initiate cell death of infected or transformed cells
  • Present antigens to mature, naïve T cells

    • What happens to activated peripheral dendritic cells (DCs)?

  • They lose adhesive markers and up-regulate CCR7 expression (correct)
  • They travel to regional secondary lymphoid tissue
  • They secrete cytokines to promote T cell subset differentiation
  • They increase expression of MHC/HLA and CD80 (B7)

    • Which cells can activate memory T cells?

    <p>B cells and macrophages</p> Signup and view all the answers

    What do mature, naïve T cells do when they encounter dendritic cells in lymphoid tissues?

    <p>They get activated by the dendritic cells</p> Signup and view all the answers

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