Expression of kininogen-1 in different colorectal tumor tissues and its relationship with survival.

Representative immunostainings of kininogen-1 in normal colorectal mucosa (A), ACA tissue (B), and CRC tissue (C). Both overview (20×) and magnification (40×) images are provided, with the latter provided as inset boxes in the top left corner of each panel. D: Quantification of kininogen-1 levels in the control, ACA, and CRC groups. E: Survival curves for control, ACA, and CRC groups. The blue line represents CRC patients negative for kininogen-1 expression and the green line represents CRC patients positive for kininogen-1 expression.