CLCA1 and rectal cancer: CLCA1 expression was closely correlated with Th17 (rho=0.379, P=3.71e-19) levels in colon cancer and with Act-B (rho=0.419, P=2.46e-08), ImmB (rho=0.365, P=1.5e-06), neutrophil (rho=0.414, P=3.68e-08), and Th17 (rho=0.517, P<2.2e-16) levels in rectal cancer.