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. 2016 Sep 27;7(43):70898–70911. doi: 10.18632/oncotarget.12286

Figure 7. Schematic overview of GPR81 regulation of breast cancer progression.

Figure 7

During breast cancer progression, upregulated GPR81 is activated by extracellular lactate, which leads to PI3K/Akt pathway stimulation and the regulation of cell survival. Activation of the PI3K/Akt-CREB pathway results in increased AREG production, which AREG promotes neo-vessel formation (angiogenesis) in tumor endothelial cells and also provides a proliferative advantage to cancer cells and tumor growth.