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. 2018 Nov 27;5:316. doi: 10.3389/fmed.2018.00316

Figure 5.

Figure 5

The clinical changes and physiological mechanisms of allergic respiratory disease. Antigen-presenting cells (APCs) present allergen-derived peptides lodged within the MHC molecule to T cells within a TH2 milieu, resulting in allergy mediated by eosinophils and IgE derived from plasma cells (transformed from activated B cells). PAMP, pathogen-associated molecular pattern; TLR, toll-like receptor; MHC, major histocompatibility complex; TCR, T cell receptor; IgE, immunoglobulin E; OX40L, CD252; B7, CD28; IL-4, interleukin-4; IL-5, interleukin-5; IL-13, interleukin-13.