Fig. 4From: Cholinergic signaling influences the expression of immune checkpoint inhibitors, PD-L1 and PD-L2, and tumor hallmarks in human colorectal cancer tissues and cell linesCorrelation of α7nAChR expression with risk of CRC (A) and survival outcomes (B). Correlation of M3R expression with risk of CRC (C) and survival outcomes (D). Association of ChAT expression with risk of CRC (E) and survival outcomes (F). Early stages, I + II, n = 49 and advanced stages, III + IV, n = 42Back to article page