YAP1 and colorectal carcinoma: The confocal images showed a high nuclear expression of YAP-1 in the fibroblasts of the 3D CRC μTs (Figure 7N,O, white arrows) when compared to the fibroblasts in the 3D stroma μTs, in which we detected a cytoplasmic signal of YAP-1 (Figure 7Q,R, white arrows).