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. 2019 Nov 26;9(1):1696517. doi: 10.1080/20013078.2019.1696517

Figure 6.

Figure 6.

PK analysis of the secretion/clearance balance of MP-sEVs based on intravenous infusion in a two-compartment model. The image above shows the schematic concept. MP-sEVs are secreted from various cells or organs. Under the assumption of this model, the MP-sEVs are secreted into plasma based on zero-order kinetics. MP-sEV clearance from circulation is assumed to follow first-order kinetics. kel or kelˊ: MP-sEV clearance rate constant (min−1). CsEV or CsEVˊ: MP-sEV concentration in blood (μg/mL). Vc or Vcˊ: volume of distribution (mL). k0: MP-sEV secretion rate constant (μg/min). The k0 value was assumed to be constant before and after macrophage depletion treatment. The table below summarizes the PK parameters based on experimental data from Figures 3 and 4.