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. 2014 Jun 20;5:308. doi: 10.3389/fmicb.2014.00308

FIGURE 1.

FIGURE 1

Plasmacytoid, conventional and monocyte-derived DCs might contribute to EBV specific immune control. Unmethylated DNA of EBV particles and EBERs of EBV-infected B cells (LCLs) mature plasmacytoid (pDCs) and conventional or monocyte-derived DCs (cDCs or moDCs) via TLR9 or TLR3 stimulation, respectively. These mature pDC and cDC or moDC populations activate natural killer (NK) and T cells via type I interferon (IFNα/β) or interleukin 12 (IL-12) secretion, respectively. For T-cell stimulation by MHC presentation they acquire EBV antigens either via phagocytosis of dying LCLs (for cDCs and moDCs) or trogocytosis of EBV epitope presenting MHC complexes (pDCs). The activated NK and primed T cells then delay primary EBV infection via IFNγ and kill infected cells. PDCs can also delay primary EBV infection via IFNα/β production.