MTOR and posterior cortical atrophy: Notably, metastatic AA PCa (MDA PCa 2b) cells exhibited the highest ratio of nuclear pmTOR/total mTOR (~80%, calculated based on the number of nuclear pmTOR-positive cells/the number of mTOR-positive cells × 100%) among all PCa cell lines (red fluorescence, DAPI and merged signals in Figure 2A, and quantification data in Figure 2C).