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. 2019 Jan 20;11(1):117. doi: 10.3390/cancers11010117

Figure 2.

Figure 2

Modeling the radial distribution of lactate, HCO3 and H+ ions in tissues without junctional coupling, i.e., radial diffusion in extracellular spaces only. (A) Schematic representation of the 3-D spherical geometry representing a solid tumor with a hypoxic core. Results of modelling shown as radial concentration gradients at the steady-state for (B) lactate, (C) HCO3 and (D) pH in the extracellular (red) and intracellular spaces (black). Arrows indicate direction of diffusive flux.