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. 2023 Jun 20;14:1163432. doi: 10.3389/fphar.2023.1163432

FIGURE 1.

FIGURE 1

QSP Model Diagram. The model is divided into of four compartments: central, peripheral, tumor, and tumor-draining lymph node, which describe cycles of immune activation in lymph nodes, T cell trafficking to the tumor, killing of cancer cells, immune evasion, and antigen release and lymphatic transport. nT, naïve T cell; aT, activated T cell; NO, nitric oxide; Arg-I, arginase I; Treg, regulatory T cell; Teff, effector T cell; Th, helper T cell; Texh, exhausted T cell; MDSC, myeloid derived suppresser cells; mAPC, mature antigen presenting cell. Cytokine degradation and cellular clearance were omitted in the diagram. Modified from (Ma et al., 2020b; Wang et al., 2021).