CD55 and colorectal carcinoma: However, two cohorts (GSE17536, GSE14333) of CRC samples showed increased expression of the decay acceleration factor CD55 (DFS HR = 1.69, 95% CI = 1.16–2.48, CoxP = 0.0067; DFS HR = 1.53, 95% CI = 1.09–2.16, CoxP = 0.015) (Figures 3I, J), which was significantly correlated with poor survival in CRC patients.