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. 2016 Jun 16;5:57–68. doi: 10.2147/ITT.S64795

Figure 4.

Figure 4

The potential roles of CD4+ cells in prion disease.

Notes: CD4+ cells can be skewed into a TH2 or Treg phenotype in prion disease. TH2 cells may aid in the differentiation of antibody-producing plasma cells from B-cells. TH2 cells could increase the number and efficiency of secreted therapeutic antibodies by inducing an Ig class switch that could aid treatment of prion or neurological diseases. They may also be beneficial in advanced or familial prion disease by secreting proinflammatory cytokines that may attract macrophages to the brain in an attempt to clear prion deposits. Treg cells can secrete the cytokines IL-10 or TGFβ to decrease inflammation when necessary.

Abbreviations: Ig, immunoglobulin; IgA, immunoglobulin A; IgG, immunoglobulin G; IL-4, interleukin 4; IL-10, interleukin 10; IL-13, interleukin 13; Treg, T regulatory cells; TH2, T helper 2; TGFβ, transforming growth factor beta.