COL3A1 has also been reported in other cancer types such as breast and colorectal cancers, with an association between COL3A1 and P4HA2 with poor prognosis in breast cancer, and correlation between elevated epithelial COL3A1 protein expression and unfavorable outcome in colorectal cancer [40, 43]. The gene discussed is P4HA2; the disease is breast carcinoma.